Patent Publication Number: US-10758939-B2

Title: Vibration presentation apparatus and method for using the same

Description:
TECHNICAL FIELD 
     The present invention relates to a wearable vibration presentation apparatus by utilizing a transmitting member such as a thread and a driving mechanism such as a motor, and in particular to the vibration presentation apparatus to transmit the vibration to a body of a user, and a method for using the vibration presentation apparatus. For example, a bobbin that the thread is wound is attached to the motor, constant tension is retained by motive power of the motor or the like after winding the thread around the body of the user, and then the vibration is generated by varying the tension by means of the motor or the like. 
     BACKGROUND ART 
     When listening to music, watching movies and the like, generally, speakers and the like are used to reproduce acoustic information. Although such the speakers can reproduce the acoustic information with audible frequencies, the large size speakers are required in order to efficiently reproduce (air vibration) sound with a low frequency range whose frequency is in a range of 20 [Hz] to 200 [Hz]. 
     On the other hand, not only auditory sense but also somatic sense of a whole body can be contributed in perception of the sound in the low frequency range. Particularly, it is said that a sense of presence is high by using the auditory sense in combination with the somatic sense in listening to music by using headphones or the like. 
     Thus, recently, a system that utilizes body sensible acoustic which alternates the presentation of the acoustic signal with the conventional auditory sense stimulation and presents the acoustic signal via the somatic sense, or presents the acoustic signal with the combination of the auditory sense stimulation and the somatic sense. 
     In the system that utilizes the above somatic sense, for example, there exists the system that enhances the sense of presence to the music by feeling the sound, the low frequency components of the music and the like as the acoustic vibration to the user by means of bone vibration and the vibration to a body trunk or the body. 
     In the above body sensible acoustic system, for example, instead of generating the sound by vibrating the air, a converter that converts the electric signal into the mechanical vibration such as an electric-mechanical vibration converter which is disclosed in Japanese Unexamined Patent Publication No. H07-323068 A (Patent Document 1), is used. 
     In a technology described in the above Patent Document  1 , as shown in a side cross-sectional view of  FIG. 14A , an elastic member having rigidity that is withstood to the load of the weight of the human body is used as a casing  2  of the electric-mechanical vibration converter  1 . In this casing  2 , a magnetic circuit  6  that comprises a yoke  4  and a magnet  5  is loosely fitted via a damper  3 . A support  8  of a coil  7  that is faced on a magnetic space of the yoke  4  is attached to the casing  2 . The electric signal that is inputted into the coil  7  is converted into the mechanical motion by magnetic action, and then the casing  2  vibrates. 
     As examples that such the converters are used, a relaxation chair disclosed in Japanese Unexamined Patent Publication No. 2001-212198 A (Patent Document 2) that transmits the vibration to the user who sits thereon, an attachable body sensible vibration apparatus disclosed in Japanese Unexamined Patent Publication No. H08-116581 A (Patent Document 3) and the like are known. 
     Here, in the above Patent Document 2, as shown in a perspective view of  FIG. 14B , the relaxation chair  11  that comprises plural vibration members  10  which convert the acoustic signal into the vibration sound for relaxation is described. In the above Patent Document 3, as shown in a perspective view of  FIG. 14C , the attachable body sensible vibration apparatus  12  is described. Shoulder pads  14  are connected to a waist pad  13  via length adjustable belts, a waist belt  15  is provided with the waist pad  13  and is formed with a harness type to fix the human body to the waist pad  13 , and the electric-mechanical vibration converters  16 , which generate the vibration generally consistent with waveforms of the voice signal against the voice signal electric-converted the voice with the audible range, are attached to the shoulder pads  14  and the waist pad  13 . 
     THE LIST OF PRIOR ART DOCUMENTS 
     Patent Documents 
     Patent Document 1: Japanese Unexamined Patent Publication No. H07-323068 A 
     Patent Document 2: Japanese Unexamined Patent Publication No. 2001-212198 A 
     Patent Document 3: Japanese Unexamined Patent Publication No. H08-116581 A 
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     The converter that is disclosed in the above Patent Document 1 and converts the electric signal into the mechanical vibration is generally a voice coil (or a transducer) and the like. The above voice coil has a basic structure similar to the speaker in which the magnet and the coil are used. Since the large size voice coil is required in order to efficiently convert the sound with the low frequency range into the mechanical vibration (the acoustic vibration), there is a problem that the weight inevitably increases and it is hard to realize a miniaturization and a weight reduction. 
     Consequently, the main using method is to utilize as the casing such as large size and heavy furniture such as the chair, as described in the above Patent Document 2. Since these applied products are large, there is a problem that a place and a situation which the products can use are limited. 
     In addition, in a case of the vibration presentation apparatus such as the above chair on which the electric-mechanical vibration converter is disposed, in principle, a degree of freedom such as posture and action of the user is largely limited. If the user sits on the chair and the body of the user presses the chair, the user can feel the above acoustic vibration. Then, when the user moves from the chair, there is a problem that the sense of presence due to the vibration presentation is lost. 
     In the technology described in the above Patent Document 3, as described above, it is disclosed that the attachable body sensitive vibration apparatus formed with the harness type to which the above electric-mechanical vibration converter is attached presents the vibration to the user. 
     Since the technology described in the above Patent Document 3 has a configuration that the user uses the body sensible vibration apparatus attachable, the degree of freedom such as the posture and the action of the user is improved against the technology described in the above Patent Document 2. 
     However, in the technology described in the above Patent Document 3, as described above, it is necessary for the user to attach the heavy electric-mechanical vibration converter. Since the range that the acoustic vibration can be transmitted by the above electric-mechanical vibration converter is around the above electric-mechanical vibration converter, in order to present the effective acoustic vibration to the user, it is necessary for the user to attach the plural electric-mechanical vibration converters. There is a problem that the load to the user increases. 
     Accordingly, the present invention is intended to resolve the above problems, and an object of the present invention is to provide the wearable vibration presentation apparatus by using the weight saving and simplified electric-mechanical vibration converter that has the quite different mechanism from the conventional one, and the method for using the vibration presentation apparatus. 
     Means for Solving the Problems 
     In order to resolve the above problems, the present invention provides to a vibration presentation apparatus comprising a transmitting member and a control unit, wherein a side portion of the transmitting member is abutted to a portion of a vibration presentation object or is wound to the vibration presentation object, and vibration is transmitted to the vibration presentation object via the transmitting member by applying predetermined tension to the transmitting member and varying the predetermined tension based on a driving signal on a basis of a vibration presentation signal. 
     The resolution of the above-described problems is efficiently achieved by that: wherein the transmitting member comprises a first holder connected to one end of the transmitting member and a second holder connected to the other end of the transmitting member, a first driving mechanism that applies the tension to the transmitting member is provided with the first holder, the driving signal on a basis of the vibration presentation signal is inputted into the first driving mechanism, by driving the first driving mechanism, the predetermined tension is applied to the transmitting member, and the predetermined tension is varied based on the driving signal; or wherein the first driving mechanism includes at least two sub-driving mechanisms; or wherein one of the at least two sub-driving mechanisms generates the predetermined tension to the transmitting member and the others of the at least two sub-driving mechanisms vary the predetermined tension based on the driving signal. 
     The resolution of the above-described problems is efficiently achieved by that: wherein the first driving mechanism comprises a first bobbin and a first electric motor connected to the first bobbin, one end of the transmitting member is connected to the first bobbin, by driving the first electric motor and winding or rewinding one end of the transmitting member on the first bobbin, one end of the transmitting member is towed and the predetermined tension is generated to the transmitting member, and the vibration is transmitted to the vibration presentation object via the transmitting member by varying the predetermined tension based on the driving signal; or wherein a second driving mechanism that applies the tension to the transmitting member is provided with the second holder, the driving signal on a basis of the vibration presentation signal is inputted into the first driving mechanism and the second driving mechanism, by cooperatively driving the first driving mechanism and the second driving mechanism, the predetermined tension is applied to the transmitting member, and the vibration is transmitted to the vibration presentation object via the transmitting member by varying the predetermined tension based on the driving signal; or wherein the second driving mechanism includes at least two sub-driving mechanisms; or wherein one of the at least two sub-driving mechanisms generates the predetermined tension to the transmitting member, and the others of the at least two sub-driving mechanisms vary the predetermined tension based on the driving signal; or wherein the second driving mechanism comprises a second bobbin and a second electric motor connected to the second bobbin, the other end of the transmitting member is connected to the second bobbin, the driving signal on a basis of the vibration presentation signal is inputted into the first electric motor and the second electric motor, by cooperatively driving the first electric motor and the second electric motor and winding or rewinding one end and the other end of the transmitting member on the first bobbin and the second bobbin respectively, the transmitting member is towed by means of the predetermined tension, and the vibration is transmitted to the vibration presentation object via the transmitting member by varying the predetermined tension based on the driving signal; or wherein the driving mechanism comprises a driving component such as a motor, a flat spiral spring, a voice coil, a speaker, a spring, a coil spring, a piezoelectric material and an electrically conductive polymer actuator or a combination thereof, and a motive power transmitting component such as a bobbin, a pulley, a gear and a worm gear or a combination thereof; or wherein the transmitting member comprises a material having a line-shape, a belt-shape or a net-shape, or a combination material thereof; or wherein the transmitting member comprises connection sections that are disposed at inward positions from one end and the other end of the transmitting member, and the connection sections connect or disconnect the transmitting member by means of connection members that constitute the connection sections; or wherein the connection members comprise a hook that is disposed near one end of the transmitting member, and a ring that is disposed near the other end of the transmitting member and is engaged with the hook, or wherein the transmitting member comprises a draw-in mechanism that the both ends of the transmitting member are drawn inwardly, and the draw-in mechanism, which alternates the driving mechanism or cooperates with the driving mechanism, generates the predetermined tension to the transmitting member by winding the transmitting member to an inside of the draw-in mechanism; or wherein the first holder is connected to the second holder each other. 
     In order to resolve the above problems, the present invention is provided to the vibration presentation apparatus wherein the transmitting member comprises a single holder to hold the both ends of the transmitting member, a driving mechanism that applies the tension to the transmitting member is provided with the holder, a driving signal on a basis of a vibration presentation signal is inputted into the driving mechanism, by driving the driving mechanism, the predetermined tension is applied to the transmitting member, and the vibration is transmitted to the vibration presentation object via the transmitting member by varying the predetermined tension based on the driving signal. 
     The resolution of the above-described problems is efficiently achieved by that: wherein the driving mechanism includes at least two sub-driving mechanisms; or wherein one of the at least two sub-driving mechanisms generates the predetermined tension to the transmitting member and the others of the at least two sub-driving mechanisms vary the predetermined tension based on the driving signal; or wherein the driving mechanism comprises a driving component such as a motor, a flat spiral spring, a voice coil, a speaker, a spring, a coil spring, a piezoelectric material and an electrically conductive polymer actuator or a combination thereof, and a motive power transmitting component such as a bobbin, a pulley, a gear and a worm gear or a combination thereof. 
     The resolution of the above-described problems is efficiently achieved by that: wherein the driving mechanism comprises two bobbins and an electric motor, the two bobbins are connected to a rotational shaft of the electric motor, one end and the other end of the transmitting member are connected to the two bobbins from different directions to wind or rewind the transmitting member by means of a rotation of the electric motor, a driving signal on a basis of a vibration presentation signal is inputted into the electric motor, by driving the electric motor and winding or rewinding one end and the other end of the transmitting member on the two bobbins, the transmitting member is towed by means of the predetermined tension, and the vibration is transmitted to the vibration presentation object via the transmitting member by varying the predetermined tension based on the driving signal; or wherein the transmitting member comprises a material having a line-shape, a belt-shape ora net-shape, ora combination material thereof; or wherein the transmitting member comprises connection sections that are disposed at inward positions from one end and the other end of the transmitting member, and the connection sections connect or disconnect the transmitting member by means of connection members that constitute the connection sections, or wherein the connection members comprise a hook that is disposed near one end of the transmitting member, and a ring that is disposed near the other end of the transmitting member and is engaged with the hook; or wherein the transmitting member comprises a draw-in mechanism that the both ends of the transmitting member are drawn inwardly, and the draw-in mechanism, which alternates the driving mechanism or cooperates with the driving mechanism, generates the predetermined tension to the transmitting member by winding the transmitting member to an inside of the draw-in mechanism. 
     In order to resolve the above problems, the present invention is provided to the method for using the vibration presentation apparatus comprising the first holder and the second holder that the vibration presentation object is a user, comprising steps of: coiling at least one turn of the transmitting member around a portion of the user body with clothes on; connecting the first holder to the second holder at any positon of a portion of the user body; and driving the vibration presentation apparatus after the connecting, wherein the user feels the vibration based on the vibration presentation signal. 
     The resolution of the above-described problems is efficiently achieved by that: wherein the portion of the user body is a breast, a waist, a shoulder or a diagonal portion from a shoulder to a waist, or a combination thereof; or wherein a position that is connected the first holder to the second holder is a front side of the user. 
     In order to resolve the above problems, the present invention is provided to the method for using the vibration presentation apparatus comprising the transmitting member or the transmitting member and a holder disposed at one end and the other end of the transmitting member that the vibration presentation object is a user, comprising steps of: coiling at least one turn of the transmitting member around a portion of the user body with clothes on; and driving the vibration presentation apparatus after the coiling, wherein the user feels the vibration based on the vibration presentation signal. 
     Effects of the Invention 
     According to the vibration presentation apparatus of the present invention that has the above configuration, it is possible to present the vibration to the vibration presentation object by using the transmitting member such as the thread, or by using the transmitting member such as the thread and the driving mechanism such as the motor. Thus, the presentation of the vibration by using the weight saving and compact apparatus against the conventional electric-mechanical vibration converter, is possible. Further, the vibration can be propagated to the wide range by using the transmitting member such as the above thread. 
     Furthermore, in the vibration presentation apparatus of the present invention, it is possible to adopt the method that the vibration is transmitted to the vibration presentation object such as the user by using the tension of the transmitting member such as the above thread. Consequently, to provide the weight saving and compact wearable vibration presentation apparatus, is possible. In a case that the transmitting member such as the above thread is coiled around the breast or the like of the above user, the vibration is transmitted to the wide range around the breast or the like of the above user. Then, it is possible to present the user via the portion around the above breast or the like with feeling as well as the listening to music in the hall or the like. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the accompanying drawings: 
         FIG. 1A  and  FIG. 1B  show an embodiment of the present invention,  FIG. 1A  is a perspective view showing a schematic appearance configuration of the present invention, and  FIG. 1B  is a perspective view showing a using example of the present invention; 
         FIG. 2  is a graph showing a relationship between tension variation of a transmitting member and a time; 
         FIG. 3A ,  FIG. 3B  and  FIG. 3C  schematically show an outline of a principle of vibration presentation according to the present invention,  FIG. 3A  is a top view in a case that the transmitting member is not wound around a vibration presentation object and is abutted to the vibration presentation object,  FIG. 3B  is a top view in a case that the transmitting member is wound around the vibration presentation object and a first holder is connected to a second holder, and  FIG. 3C  is a top view in a case that the transmitting member is completely wound one turn around the vibration presentation object and the first holder is connected to the second holder; 
         FIG. 4A ,  FIG. 4B ,  FIG. 4C  and  FIG. 4D  show a vibration presentation apparatus  100  that is the embodiment of the present invention,  FIG. 4A  is a perspective view partially including a transparent view,  FIG. 4B  is a perspective view showing a configuration example of a motor portion, and  FIG. 4C  and  FIG. 4D  are side views showing a relationship among the motor, a bobbin and a line-shape member; 
         FIG. 5  is a configuration diagram showing a configuration example of a control system in accordance with the embodiment of the present invention; 
         FIG. 6A  and  FIG. 6B  show a configuration example that is adopted to a configuration which is provided with a flat spiral spring, the electric motor and the bobbin as a driving mechanism,  FIG. 6A  is a top view, and  FIG. 6B  is a side view; 
         FIG. 7  is a side view showing the outline of the configuration example that is adopted to the configuration which is provided with the flat spiral spring, the bobbin and a voice coil as the driving mechanism; 
         FIG. 8  is a flowchart showing a flow of a method for using the vibration presentation apparatus  100  that is the embodiment according to the present invention; 
         FIG. 9A ,  FIG. 9B  and  FIG. 9C  show the configuration example that the transmitting member is dis-connectable, and one end and the other end of the transmitting member are retained by a single holder,  FIG. 9A  is a perspective view,  FIG. 9B  is a side view in a case that two bobbin covers which constitute the driving mechanism of the above configuration example are removed, and connection sections are disconnected, and  FIG. 9C  is a top view showing a concept of a status when the above transmitting member is connected to the two bobbins which are connected to a rotational shaft of the electric motor provided with the above holder; 
         FIG. 10  is a perspective view showing the vibration presentation apparatus  1000  that is the embodiment according to the present invention; 
         FIG. 11A ,  FIG. 11B  and  FIG. 11C  show the vibration presentation apparatus  1100  that is the embodiment according to the present invention,  FIG. 11A  is a plan view showing the outline of the configuration of the apparatus  1100  according to the embodiment in a case that the transmitting member is formed with a belt-shape,  FIG. 11B  is a perspective view showing an example that the belt illustrated in  FIG. 11A  is coiled one turn via a belt adjuster, and  FIG. 11C  is a plan view showing an example that the transmitting members are intermittently disposed in a base material of the belt and are electrically connected each other, being different from  FIG. 11A  and  FIG. 11B ; 
         FIG. 12  is a flowchart showing the flow of the method for using the vibration presentation apparatus  1100  that is the embodiment according to the present invention; 
         FIG. 13A  and  FIG. 13B  show the vibration presentation apparatus  1300  that is the embodiment according to the present invention,  FIG. 13A  is a plan view showing the outline of the configuration in a case that the transmitting member is wound in a draw-in mechanism, and  FIG. 13B  is a perspective view showing a state that the transmitting member is rewound from the draw-in mechanism shown in  FIG. 13A  and the two holders are connected; and 
         FIG. 14A ,  FIG. 14B  and  FIG. 14C  show examples of the conventional art,  FIG. 14A  is a side cross-sectional view showing a conventional example of an electric-mechanical vibration converter,  FIG. 14B  is a perspective view exemplifying a case that the electric-mechanical vibration converter is used to a chair, and  FIG. 14C  is a perspective view showing an configuration example that the electric-mechanical vibration converter is attachable. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     An embodiment according to the present invention will be described with reference to the drawings. In the above drawings, components, which have the same or similar structure, or the same or similar function, can be assigned to the same or similar symbols or reference numerals. In common components and elements, a part of indication and description can be omitted. An indication in a size or ratio of the respective components or between the respective components can be different from an actual size or ratio. 
     At first, an outline of a configuration of an embodiment according to the present invention and a principle of vibration presentation of the present invention will be described with reference to  FIG. 1A  to  FIG. 3C . 
       FIG. 1A  and  FIG. 1B  show the embodiment of the present invention,  FIG. 1A  is a perspective view showing a schematic appearance configuration of the vibration presentation apparatus  100  according to the embodiment of the present invention, and  FIG. 1B  is a perspective view showing a using example of the vibration presentation apparatus  100  according to the above embodiment of the present invention. 
     The vibration presentation apparatus  100  according to the above embodiment of the present invention, whose outline is shown in  FIG. 1A  and  FIG. 1B , comprises a transmitting member  101  that is constituted by a thread having a low stretching rate, a first holder  110  connected to one end of the transmitting member  101 , and a second holder  120  connected to the other end of the transmitting member  101 . Here, both the first holder  110  and the second holder  120  have a connection section, and in  FIG. 1A  and  FIG. 1B , and by using the connection sections, the first holder  110  and the second holder  120  are connected. 
     As described below in detail, the above first holder  110  and the above second holder  120  comprise an electric motor and a bobbin serving as a driving mechanism, a control unit, a battery, input connectors that input an acoustic signal and the like as a vibration presentation signal from an external, and the like. The transmitting member  101  such as the above thread can be wound or rewound on the bobbin that the above driving mechanism comprises by using the above electric motor or the like. 
     Here, the above winding means that the above transmitting member is wound on a shaft of the bobbin by means of a rotation of the above electric motor or the like. The above rewinding means that the rotation, the torque, or the like of the above electric motor is loosen, and the transmitting member which is wound on the bobbin is operated to pull out from the bobbin. 
     In the present invention, for example, a constant tension is maintained by towing the above transmitting member  101  by means of the driving mechanism such as the above two electric motors. By applying a modulation corresponding to an acoustic signal and the like to the tension, the vibration of the acoustic vibration and the like is presented to the user or like who is a vibration presentation object. 
     That is, as shown in  FIG. 1B , for example, at first, the user of the present apparatus winds one turn of the transmitting member  101  of the vibration presentation apparatus  100  around a breast and the like of the above user with clothes on, and the first holder  110  and the second holder  120  are connected at a front side or the like of the above user. 
     After the above two holders  110  and  120  are connected, the transmitting member  101  is retained by means of the constant tension around the breast and the like of the above user by driving the vibration presentation apparatus  100 . Thereafter, the vibration presentation signal such as the acoustic signal S from a portable music reproducing apparatus WM and the like that the above user attach, is inputted into the vibration presentation apparatus  100 . 
     The vibration presentation signal such as the acoustic signal S that is inputted from the above portable music reproducing apparatus WM is converted into the driving force such as the electric motors, which are equipped with the holders  110  and  120 , by means of the control unit of the present apparatus  100 , and is transmitted to the transmitted member. The winding and the rewinding of the transmitting member  101  that is wound around the breast and the like of the above user are performed. This is transmitted to the above user as a variation of the tension around the breast and the like of the above user, and it is possible for the user to feel the variation of the above tension as the variation of the acoustic vibration and the like. 
     Therefore, the above user can listen the music and the like by auditory sense through headphones HP from the above portable music reproducing apparatus WM and the like, and enables to feel the above music and the like as the vibration of the acoustic vibration and the like through the transmitting member  101  of the above vibration presentation apparatus  100 . 
     The vibration presentation due to the above tension variation is performed based on the principle that is described in, for example,  FIG. 2 ,  FIG. 3  and the following explanation. 
     Here, the above  FIG. 2  is a graph showing time variation of the tension and the modulation of the transmitting member by means of the vibration presentation apparatus of the present invention.  FIG. 3A ,  FIG. 3B  and  FIG. 3C  schematically show an outline of a principle of the vibration presentation according to the present invention,  FIG. 3A  is a top view in a case that the transmitting member  101  is not wound around the vibration presentation object O and is abutted to the vibration presentation object O,  FIG. 3B  is a top view in a case that the transmitting member  101  is wound around the vibration presentation object O and the first holder is connected to the second holder, and  FIG. 3C  is a top view in a case that the transmitting member  101  is completely wound one turn around the vibration presentation object O and the first holder is connected to the second holder. (As described below, in a case of adopting the embodiment that is constituted by using the single holder in the present invention, this case is corresponding to the configuration that the above two holder are connected in the above  FIG. 3B  and  FIG. 3C .) In the configuration of the apparatus  100 , as described above, the tension applied to the above transmitting member  101  can be varied by towing the above transmitting member  101  to which the winding or the rewinding is performed between the two holders  110  and  120 , and adjusting the intensity of the towing. 
     That is, according to the vibration presentation apparatus  100  of the present invention, as shown in the above  FIG. 2 , the above transmitting member  101  is towed between the holders  110  and  120  by means of the constant tension (the retaining tension) Tc, and the above tension Tc is modulated by superimposing the variation of the acoustic signal S and the like. As a result, the varying tension Ts that the above acoustic signal S and the like are superimposed can be transmitted to the above vibration presentation object O. (In the above  FIG. 2 , a vertical axis denotes tension (T) and a horizontal axis denotes time (t).) 
     Explaining this more concretely, in cases that, as shown in  FIG. 3A , the transmitting member  101  is not wound around the vibration presentation object O and is abutted to the vibration presentation object O via an auxiliary member AM and the like around the vibration presentation object O such as the user, as shown in  FIG. 3B , the transmitting member  101  is wound around the vibration presentation object O and the first holder is connected to the second holder, or as shown in  FIG. 3C , the transmitting member  101  is completely wound one turn around the vibration presentation object O and the first holder is connected to the second holder, when the retaining tension Tc by means of towing the above transmitting member  101  is applied to the above transmitting member  101 , this force is transmitted to the vibration presentation object O as the force from a periphery of the above vibration presentation object O to an inward direction. 
     When the above retaining tension Tc is varied based on the acoustic signal S and the like that are inputted from the external, the variation of the tension Ts is transmitted to the above vibration presentation object O as the variation of the force from the outer surface of the vibration presentation object O to the inward direction. 
     Then, corresponding to the variation of the force to the inward direction at the periphery of the above vibration presentation object O, as shown in dashed line arrows of  FIG. 3A  to  FIG. 3C , a motion that the above periphery is directed to the inward direction and a motion that the above periphery is directed to the outward direction, occur. This is because the above vibration presentation object O has the drag against the force to the inward direction. 
     In the periphery of the above vibration presentation object O, that is, the region that the transmitting member  101  is abutted or wound, as a result of occurring the motions that are directed to the inward and outward directions, the vibration is generated on the above vibration presentation object O. Due to the above vibration, the vibration presentation to the vibration presentation object O is achieved, and the function of the vibration presentation apparatus is exerted. 
     This is the principle of the vibration presentation of the vibration presentation apparatus. In the present invention, in order to be based on the principle of the above vibration generation, the vibration presentation object O has the drag against the force to the inward direction in the region that the transmitting member  101  is abutted or wound, as described above, and is necessary to generate the tension to the above transmitting member  101 . 
     Thus, in a case that the above vibration presentation object O is the user being a human, in order that body trunk has the drag, the above transmitting member  101  is abutted or wound around the breast of the above user, and in a thorax of the above user, the motion that the thorax is directed to the inward direction and the motion that the thorax is directed to the outward direction, occur in response to the tension variation of the above transmitting member  101 . Thereby, the acoustic vibration and the like can be presented to the user. 
     Further, in the present invention, in order to be based on the principle of the above vibration generation, achieving the efficient vibration presentation is possible by being wound around the above vibration presentation object O in the larger region. Adopting the configuration by enclosing the above vibration presentation object O by means of the transmitting member  101  is to perform the further efficient vibration presentation. 
     In this connection, as shown in the above  FIG. 3A , the vibration presentation is possible even in a case that the above transmitting member  101  is not wound around the vibration presentation object O and is abutted to the vibration presentation object O. As shown in the above  FIG. 3B , the efficient vibration presentation is achieved in a case that the above transmitting member  101  is wound around the vibration presentation object O so as to construct a closed loop, the first holder is connected to the second holder, and the connected holders are disposed at the front side of the vibration presentation object O. As shown in the above  FIG. 3C , the further efficient vibration presentation is achieved in a case that the above transmitting member  101  is completely wound one turn around the vibration presentation object O, the first holder is connected to the second holder, and the connected holders are disposed at the front side of the vibration presentation object O. 
     As well, as described above, if the retaining tension Tc and the varying tension Ts are generated in the apparatus, the vibration presentation is possible. Thus, the necessity that the two holders are connected each other does not necessarily exist. However, by connecting the holders, as described above, it is possible to improve the portability and ease of the handling. In the present invention, as described below, the two holders are not used, and adopting the configuration that the single holder is used is possible. In this case, it is possible to further improve the portability and the ease of the handling by adopting a configuration that the above transmitting member is detachable and connectable at a center portion or the like. When the above holders are used in the apparatus, it is effective to have the configuration that the above holders are abutted or pressed to the side portion of the vibration presentation object together with the above transmitting member. However, it is possible to present the effective vibration even when the above holders are not necessarily abutted or pressed to the side portion of the vibration presentation object depending on usage embodiments to the above vibration presentation object. 
     Next, a further concrete configuration example of the vibration presentation apparatus  100  that is the embodiment of the present invention will be described with reference to  FIG. 4A  to  FIG. 4D  and  FIG. 5 . 
     Here,  FIG. 4A ,  FIG. 4B ,  FIG. 4C  and  FIG. 4D  show the vibration presentation apparatus  100  that is the embodiment according to the present invention,  FIG. 4A  is a perspective view partially including a transparent view,  FIG. 4B  is a perspective view showing a configuration example of a motor portion, and  FIG. 4C  and  FIG. 4D  are side views showing a relationship among the motor, the bobbin and the transmitting member and the like. 
     As shown in  FIG. 4A  to  FIG. 4D , the above vibration presentation apparatus  100  of the present invention comprises the transmitting member  101  having basically a line-shape or the like, the first holder  110  connected to one end of the transmitting member, and the second holder  120  connected to the other end of the transmitting member, as main components. 
     A power switch SW, an operation indicator LED, an adjustment dial Vc of the retaining tension Tc, and connector terminals Ct and a connection member Cb that are engaged with those which are provided with the above second holder, are disposed on the outer covering of the above first holder  110 . An input connector In and an output connector Out of the acoustic information and the like from the above portable music reproducing apparatus WM and the like, and connector terminals Ct′ and a connection member Cb′ (not shown) that are engaged with those which are provided with the above first holder, are disposed on the outer covering of the above second holder  120 . 
     Here, the above power switch SW turns ON or turns OFF the power supply of the apparatus. The input and output connectors (In and Out) of the acoustic signal S and the like input and output the acoustic information from the portable music reproducing apparatus WM and like that are separately provided. The connector terminals (Ct and Ct′) input and output the control signal and the like by means of the control unit between the above two holders ( 110  and  120 ). 
     In the above components, the transmitting member  101  comprises the thread that is the line-shape member in the present embodiment. 
     Since the thread needs to effectively transmit the above tension variation to the vibration presentation object O, it is preferable to use a wire that has the low stretching rate such as high molecular weight polyethylene so that the towing by means of the above motor is not used for the deformation of the above thread. 
     Further, in the present invention, since the above transmitting member  101  is sufficient to effectively transmit the above tension variation to the vibration presentation object O, the above transmitting member  101  is not limited to the above line-shape member, and may be used by the belt-shape member or the net-shape member. For example, as shown in  FIG. 4C  and  FIG. 4D , the combination of the line-shape member and the belt-shape member or the net-shape member can be formed. Mainly, as described below, the portion that is wound to the bobbin  123  can be constituted by the line-shape member  101 , and the portion that is coiled to the vibration presentation object O and the like can be constituted by the belt-shape member  101 B or the net-shape member  101 N. In a case that the belt-shape member  101 B or the net-shape member  101 N is used as the transmitting member, the effect that the transmitting region of the vibration to the vibration presentation object O is larger than the case of using the line-shape member, is existed. 
     Next, in the above components, the first holder  110  retains one end of the transmitting member  101 , and the second holder  120  retains the other end of the transmitting member  101 . The first holder  110  and the second holder  120  have a basic function that the varying tension Ts is generated by towing the above transmitting member  101  from one end and the other end with the constant tension Tc, and modulating the above tension Tc by means of the acoustic signal S and the like. 
     In this connection, the above first holder  110  comprises the first bobbin  113  (not shown), the first bobbin cover  113   c , and the first electric motor  115  (not shown). The above second holder  120  comprises the second bobbin  123 , the second bobbin cover  123   c , and the second electric motor  125 . Further, the first bobbin  113  is connected to one end of the transmitting member  101 , and the second bobbin  123  is connected to the other end of the transmitting member  101 . By rotation of the two electric motors  115  and  125 , winding or rewinding the transmitting member around the shaft that the bobbin comprises, is possible. 
     Here, in the above holders ( 110  and  120 ), since the basic structures of the motor portion and the bobbin portion of the first holder are the same as those of the second holder, the basic structures of the above bobbins ( 113  and  123 ), the bobbin covers ( 113   c  and  123   c ), and the electric motors ( 115  and  125 ) will be described by using the above holder  120 . 
     As shown in  FIG. 4A  that is a partially transparent view, the above second holder  120  houses the above bobbin  123  and the electric motor  125  at one side of the above second holder  120 . The above bobbin  123  is further covered with the bobbin cover  123   c  from an outside. 
     As shown in  FIG. 4A  to  FIG. 4C , the bobbin  123  comprises two disks that are provided in parallel and a shaft that connects the above two disks at the center of the disks. A rotational shaft of the electric motor  125  as described below is formed in the above shaft so as to be rotatable in conjunction with the rotation of the above shaft. 
     The above shaft is connected to the other end of the transmitting member  101 . In a case that the above shaft rotates or moves rotationally by rotating or moving rotationally of the above electric motor  125 , the above transmitting member  101  can be wound or rewound around the above shaft. 
     As shown in  FIG. 4A  and  FIG. 4B , the above bobbin cover  123   c  is formed on the generally cylinder-shape that the bottom surface is not existed and can cover the above bobbin  123  from the top surface and the side surface of the cylinder-shape. A hole  123   ch  is disposed on the side surface of the above cylinder-shape so that the above transmitting member  101  is inserted. 
     The above bobbin cover  123   c  covers the above bobbin  123  from the outside, and is moving-rotationally attached to the circular groove  127  that is disposed the above holder, at a bottom portion of the side surface of the above cylinder shape. The above bobbin cover  123   c  also has an introducing function that the transmitting member  101  which is inserted into the hole  123   ch  disposed on the side surface of the above bobbin cover  123   c , enables to smoothly wind to or rewind from the bobbin  123 . 
     The shaft of the above bobbin  123  is rotated or is moved rotationally by rotating the electric motor  125 . Thereby, the electric motor  125  winds or rewinds the transmitting member  101  around the shaft of the bobbin  123 , applies the constant tension Tc to the above transmitting member  101 , and has a function that the varying tension Ts is generated by varying the above tension based on the acoustic signal S and the like. 
     Accordingly, the above electric motor  125  is used to the motor that has a fast response speed such as, for example, a coreless motor, so as to quickly generate the varying tension Ts depending on the variation of the above acoustic signal S and the like. 
     In the present apparatus  100 , towing the above transmitting member  101  by means of the above electric motor  125  generates an initial tension (the retaining tension) Tc and the like in a certain strength range, and retains this tension. 
     In the present embodiment, as described below, a current that generates the towing force which can be used as the retaining tension Tc is antecedently set to the above electric motor  125 . The present embodiment adopts the configuration that the acoustic signal S and the like are superimposed to the retaining tension Tc. 
     As described above, since the basic structures of the above electric motor and the above bobbin in the above two holders are common, the structures of the electric motor  125  and the bobbin  123  in the second holder  120  are basically the same as the structures of the electric motor  115  and the bobbin  113  in the first holder  110 . 
     Furthermore, the above electric motor and the above bobbin are exemplified as a configuration example of the driving mechanism of the present invention. Therefore, the driving mechanism of the present invention is not limited to the above configuration. Not being limited to tow the transmitting member, as described above, any configuration that the predetermined retaining tension Tc is generated to the above transmitting member, and the varying tension Ts which is modulated to the retaining tension Tc can be generated, may be adopted. Therefore, for example, it is possible to adopt the configuration that the motor and a flat spiral spring are combined, as described below. The above driving mechanism enables to comprise a driving component such as the motor, the flat spiral spring, a voice coil, a speaker, a spring, a coil spring, a piezoelectric material (for example, polyvinylidene fluoride (PVDF), polylactic acid laminated film, and the like) and an electrically conductive polymer actuator or a combination thereof, and a motive power transmitting component such as the bobbin, a pulley, a gear and a worm gear or a combination thereof. 
     Next, returning to  FIG. 4A , the configurations of the above first holder  110  and the above second holder  120  will continue to be described. As shown in the above  FIG. 4A , in the apparatus  100  of the embodiment of the present invention, in addition to the driving mechanisms that comprise the above electric motors, the bobbins and the like, the control unit (not shown) is provided. A power supply (a battery) that supplies electric power to the driving mechanisms such as the above control unit and the electric motors are housed in the apparatus  100 . 
     The above control unit controls the driving of the above electric motors  115  and  125 . Thus, the above control unit has a control function that the above retaining tension Tc is generated by towing the above transmitting member  101  by means of the control of the driving mechanisms such as the above electric motors, and the varying tension Ts is generated by applying the variation, which is dependent on the acoustic signal S and the like inputted from the external input terminal In, to the above retaining tension Tc. 
     However, the above control unit is not limited to the above configuration, and a different configuration that has the above function can be adopted. 
     In this connection, for example, as shown in  FIG. 5 , a configuration using an amplifier that amplifies the acoustic signal S and the like can be adopted instead of the above control unit. Here, the above  FIG. 5  is a configuration diagram showing a configuration example of a control system in accordance with the embodiment of the present invention. 
     The configuration example exemplified in the above  FIG. 5 , which the user is treated as the vibration presentation object, has a configuration that the thread as the above transmitting member is completely coiled one turn around the breast of the above user, and the first holder  110  and the second holder  120  are connected at the front side of the above user. 
     Here, the two electric motors  115  and  125  are connected to the batteries Bt in the above two holders  110  and  120 , and are connected to the amplifier Amp that is constituted by connecting the connector Ct which is disposed on the holder  110  to the connector Ct′ which is disposed on the holder  120 . 
     In the above configuration example, the above electric motors generate the retaining tension Tc by receiving constant direct currents from the above battery Bt. The above amplifier Amp generates the varying tension Ts by inputting the varied current corresponding to the above acoustic signal and the like, and the varying tension Ts generates the vibration to the above transmitting member. 
     Therefore, it is possible to present the vibration according to the present invention even in the above configuration. 
     As well, in the present invention, being different from the above configuration, it is possible to dispose the plural driving mechanisms such as the above electric motor on the one holder. In this case, as exemplified in  FIG. 6A ,  FIG. 6B  and  FIG. 7 , it is possible to adopt the configuration that the above predetermined retaining tension Tc is generated on the transmitting member by means of one of the driving mechanisms, and the above varying tension Ts is generated on the transmitting member by means of the other of the driving mechanisms. 
     For example, the example of the above  FIG. 6A  and  FIG. 6B  adopts the configuration that the flat spiral spring, the electric motor and the bobbin are disposed as the driving mechanisms, that is, the configuration that the above predetermined retaining tension Tc is generated by the above flat spiral spring, and the above varying tension Ts is generated by the above electric motor. 
     That is,  FIG. 6A  and  FIG. 6B  shows the configuration example  6000  that adopts the configuration that the flat spiral spring, the electric motor and the bobbin are disposed as the driving mechanisms.  FIG. 6A  is a top view and  FIG. 6B  is a side view. In the above configuration example  6000 , the bobbin  603  and the flat spiral spring Sp are coaxially connected on the shaft Ms of the above electric motor  605 . The transmitting member  601  can be wound or be rewound on the bobbin  603  depending on moving-rotationally of the shaft Ms. The above flat spiral spring is fixed to the above holder by means of a fixing member Fm. 
     In such the configuration example  6000 , considering the antecedently supposed winding length of the vibration presentation object, the length of the above transmitting member  601  is determined. By directly disposing the flat spiral spring Sp, which can wind or rewind the above transmitting member  601  having the above length, on the shaft Ms of the above electric motor  605 , and moving rotationally the above shaft Ms, it is possible to generate the above retaining tension Tc. The above varying tension Ts can be generated by the above electric motor  605 . Therefore, in a case that the above configuration example  6000  is adopted, for example, since it is not necessary to adopt the configuration as is described in the configuration example with reference to the above  FIG. 5  that the retaining tension Tc is generated by applying the direct current from the battery Bt, it is possible to perform the power saving, extend the lifetime of the battery Bt, and suppress the heat of the above electric motor and the like. 
     In the example of the above  FIG. 7 , the configuration that the flat spiral spring, the bobbin and the voice coil (or other transducer, the speaker, or the like) are disposed is adopted, the above predetermined retaining tension Tc is generated by the above flat spiral spring, and the varying tension Ts is generated by the above voice coil (or other transducer, the speaker, or the like). 
     Here, the example of the above  FIG. 7  shows the configuration example  7000  that adopts the configuration that the flat spiral spring, the bobbin and the voice coil (or other transducer, the speaker, or the like) are disposed as the driving mechanisms.  FIG. 7  shows a schematic side diagram. In the present configuration example, the basic configuration such as the flat spiral spring and the bobbin is similar to that of the above configuration example  6000 . 
     The driving mechanism of the above configuration example  7000  comprises a retaining tension section that the components thereof mainly occupy the left side of  FIG. 7 , and a varying tension section that the components thereof mainly occupy the right side of  FIG. 7 . The above retaining tension section comprises the flat spiral spring Sp, the bobbin  703 , and a casing  709 . The flat spiral spring Sp and the bobbin  703  are coaxially connected on the shaft Ps that is disposed on a central axis of the above bobbin  703 , and the transmitting member  701  can be wound or be rewound around the bobbin  703  in response to move rotationally the above shaft Ps. Further, the above flat spiral spring Sp and the bobbin  703  are retained in the casing  709  of the retaining tension section, and the above casing  709  is vibratorily retained by the holder in the tangential direction of the above transmitting member  701  (left and right directions in  FIG. 7 ) via a vibration body Ob and a support Sup, as described below. The above varying tension section comprises the voice coil VC (or other transducer, the speaker, or the like). The above voice coil or the like, for example, comprises magnets MG fixed to the holder, the vibration body Ob wound with a coil that is extended from the above holding tension section, and the support Sup, which is made of a soft material, for supporting the vibration body Ob, around which the coil is wound. The acoustic signal and the like are inputted into the above voice coil VC or the like. 
     Accordingly, in such the configuration example  7000 , it is possible to generate the retaining tension to the transmitting member  701  by winding or rewinding the above transmitting member  701  on the above bobbin  703  by means of the flat spiral spring Sp of the above retaining tension section. It is possible to generate the varying tension to the transmitting member  701  by vibrating the bobbin  703  and the overall flat spiral spring Sp of the above retaining tension section, and the vibration body Ob that is wound with the above coil, in the tangential direction of the above transmitting member  701  that is corresponding to the left and right directions of the above  FIG. 7 , in response to the acoustic signal and the like inputted from the above voice coil or the like by the above varying tension section. 
     As described above, in a case of adopting the configuration that the above predetermined holding tension Tc is generated to the above transmitting member by one of the driving mechanisms, and the above varying tension Ts is generated by the other of the driving mechanisms, it is not necessary to input the acoustic signal S and the like into one of the driving mechanisms that generates the above holding tension Tc. 
     Returning to the configuration example as shown in  FIG. 4A , the explanation will be continued. The vibration presentation apparatus  100  of the present invention having the configuration shown in the above  FIG. 4A  enables to perform the vibration presentation to the vibration presentation object by using the vibration presentation apparatus  100  as follows. 
     That is, in the present invention, for example, as shown in the flowchart of  FIG. 8 , in a case that the vibration presentation object O is the user being the human, at first, the user coils at least one turn of the transmitting member  101  around a breast and the like of the above user with clothes on (Step S 1 ). At this time, even in a case that the transmitting member  101  is overlapped each other, if a material having a slip characteristic is used in the transmitting member  101 , the transmitting of the tension variation is not largely affected. 
     Thereafter, the first holder  110  connected to one end of the transmitting member  101 , and the second holder  120  connected to the other end of the transmitting member  101  are connected (Step S 2 ). After the two holders  110  and  120  are connected, by driving the above vibration presentation apparatus  100 , the above breast is retained by means of the constant retaining tension Tc (Step S 3 ). 
     Continuously, when the acoustic signal S and the like is inputted into the above vibration presentation apparatus  100  (Step S 4 ), the driving signal on a basis of the above acoustic signal S and the like is inputted into the above first electric motor  115  and the above second electric motor  125  via the above control unit. By cooperatively driving the first electric motor  115  and the second electric motor  125 , winding or rewinding one end and the other end of transmitting member  101  on the above first bobbin  113  and the above second bobbin  123 , is performed (Step S 5 ). By converting the predetermined retaining tension Tc into the varying tension Ts based on the above driving signal (Step S 6 ), the vibration is transmitted to the above vibration presentation object via the transmitting member. 
     In the above example, after the above transmitting member  101  is wound at least one turn around the breast of the above user and the above two holders are connected, the apparatus turns ON and drives. However, it is not limited to the above use. Winding the transmitting member may be performed after the apparatus turns ON and drives. 
     Further, as described above, the portion of the user body around which the transmitting member is wound is not limited to the breast, and may be the torso, the abdomen, the waist where for example, the belt or the like is fastened, a diagonal portion from the left (or right) shoulder to the right (or left) waist, or a combination thereof. In a case that winding is performed at plural portions, the plural vibration presentation apparatuses may be used. In a case that the transmitting member is wound around the stomach, since the user feels uncomfortable, it is preferred that coiling the transmitting member around the portion neighboring the stomach should be avoided. 
     In accordance with the vibration presentation apparatus according to the present invention, the vibration can be presented to the vibration presentation object by using the transmitting member such as the thread and the driving mechanism such as the motor. Thus, the presentation of the vibration by using the weight saving and compact apparatus against the conventional electric-mechanical vibration converter, is possible. Further, the vibration can be propagated to the wide range by using the transmitting member such as the above thread. 
     Further, in the vibration presentation apparatus, it is possible to adopt the method that the vibration is transmitted to the vibration presentation object such as the user by using the tension of the transmitting member such as the above thread. Consequently, to provide the weight saving and compact wearable vibration presentation apparatus, is possible. In a case that the transmitting member such as the above thread is wound around the breast or the like of the above user, the vibration is transmitted to the wide range around the breast or the like of the above user. Thus, it is possible to present the user via the portion around the above breast or the like with feeling as well as the listening to music in the hall and the like. 
     As well, the present invention is not limited to the above embodiment, and other embodiments can be adopted within the scope of gist of the present invention. 
     In this connection, in the above embodiment, the examples that the varying tension Ts is generated based on the acoustic signal S are mainly described. The signal based on the vibration presentation signal may be used, and is not necessarily limited to the acoustic signal S. Therefore, for example, in a case of performing the vibration presentation to the player of the game and the like, separately from an effect sound and music of the game, and the like, a tactile sense presentation signal may be used as the vibration presentation signal. That is, the varying tension Ts that is independently generated based on the tactile sense presentation signal may be used. 
     As described above, for example, not using the electric motors and the bobbins in the two holders, the configuration that the above electric motor and the above bobbins are used in only one of the holders can be adopted. Even in such the configuration, it is possible to apply the tension to the above transmitting member, and vary the tension. 
     In the above embodiment, the configuration that the apparatus comprises the above two holders is described. However, in the present invention, for example, as shown in  FIG. 9A ,  FIG. 9B  and  FIG. 9C , the above transmitting member is separable, and the single holder can retain one end and the other end of the transmitting member in the not separating state. It is possible to adopt the configuration that the side portion of the transmitting member is abutted to the portion of the vibration presentation object or is coiled to the vibration presentation object, and the vibration is transmitted to the vibration presentation object by generating the retaining tension Tc and the varying tension Ts to the above transmitting member by means of the driving mechanisms disposed on the above single holder. 
     That is, the above  FIG. 9A ,  FIG. 9B  and  FIG. 9C  show the vibration presentation apparatus  9000  that is the above embodiment having the above configuration.  FIG. 9A  is a perspective view,  FIG. 9B  is a side view in a case that the two bobbin covers which constitute the driving mechanism of the above vibration presentation apparatus  9000  are removed, and connection sections are disconnected, and  FIG. 9C  is a top view showing a concept of a status when the above transmitting member is connected to the two bobbins which are connected to a rotational shaft of the electric motor provided with the above holder. 
     In the above vibration presentation apparatus  9000 , as shown in  FIG. 9A  and  FIG. 9B , the above single holder  9000  comprises the two bobbins  903 A and  903 B, and the electric motor  905  as the driving mechanisms. The above two bobbins  903 A and  903 B are coaxially connected on the shaft Mc of the above electric motor  905 , and stacks up and down. 
     As shown in  FIG. 9C , one end and the other end of the above transmitting member  101  are connected to the above two bobbins  903 A and  903 B in different directions (in both directions of the above holder  900 ) through the holes  903 Ach (not shown) and  903 Bch of the bobbin covers  903 Ac and  903 Bc, respectively. That is, one end and the other end of the above transmitting member  101  are be connected to the above two bobbins so as to be capable of winding (for example, winding the transmitting member in the straight arrow direction which is shown by the dashed line in the above  FIG. 9C ) or rewinding on the above two bobbins in conjunction with the moving-rotationally direction of the above electric motor  905  (for example, in the curved arrow direction which is shown by the dashed line in the above  FIG. 9C ). 
     Further, in the above vibration presentation apparatus  9000 , the above transmitting member  101  comprises connection sections that are disposed at a substantially central position (a substantially equal distance position from one end and the other end of the above transmitting member  101 ) so as to separate the two transmitting members  101 α and  101 β. As connection members that constitute the connection sections, a hook αf is disposed at one end  101 α of the above transmitting member, and a ring βr that is engaged with the hook αf is disposed at the other end  101 β of the above transmitting member. Thus, the above transmitting members  101 α and  101 β are separable and connectable by means of the above connection members αf and βr of the above connection sections. 
     In this connection, for example, in a case that the vibration presentation apparatus  9000  that has the above configuration is used to the user, the basic use method is similar to that of the vibration presentation apparatus  100 . By appropriately separation or connection of the above transmitting members  101 α and  101 β, the above transmitting members  101 α and  101 β are wound at least one turn around the portion of the body of the above user (the breast, the torso, the waist (the position where the belt or the like is fastened), or the like) with clothes on. After the above winding, it is possible for the user to feel the vibration on a basis of the above acoustic signal and the like by driving the above vibration presentation apparatus  9000 . In a case of adopting the above configuration, by using the single electric motor and the two bobbins, providing the efficient and weight saving vibration presentation apparatus is possible. 
     As the different configuration example, it is possible to adopt the vibration presentation apparatus of the present invention that comprises the two holders, for example, the vibration presentation apparatus  1000  that is the embodiment as shown in  FIG. 10 , to an existing chair. 
     In the example shown in the above  FIG. 10 , the vibration presentation apparatus  1000  of the present invention comprises the first holder  1010  connected to one end of the transmitting member, and the second holder  1020  connected to the other end of the transmitting member. The above holders  1010  and  1020  are detachable to the above chair. 
     Accordingly, by adopting such the configuration, even in a case that the apparatus is portable, it is possible to perform the vibration presentation by means of attaching the holders  1010  and  1020  to the above existing chair when the user sits on the chair. Therefore, in a case that the vibration presentation is performed when moving the body of the user is not necessarily required, that is, a relaxation situation, or vibroacoustic therapy and the like, performing the vibration presentation by using the present invention can be extremely easy. 
     In a case that the vibration presentation apparatus according to the present invention is attached to the chair, the configuration that the vibration presentation apparatus comprises the first holder  1010  connected to one end of the transmitting member  101  and the second holder  1020  connected to the other end of the transmitting member  101 , and the above holders  1010  and  1020  are detachable to the above chair, is not limited, and other configurations can be adopted. 
     For that reason, for example, if the transmitting member  101  is disposed on the surface of the above chair and the tension variation is changeable, it is possible to present the vibration to the vibration presentation object regardless of the number of the holders and the configuration of the driving mechanisms. 
     The transmitting member, the holders, the control unit and the like are not necessarily detachable to the above chair, and they can be fixed to the chair, antecedently. In this case, for example, the vibration presentation apparatus can be used to the seats of the theater and the like. 
     Accordingly, in accordance with the present invention, by combining the transmitting member and the driving mechanisms that are disposed on the holders, as described above, the predetermined tension (the retaining tension and the varying tension) can be generated to the above transmitting member, and performing the vibration presentation to the vibration presentation object can be extremely efficient. 
     In the present invention, one of or both of the retaining tension Tc and the varying tension Ts are generated by expanding and contracting the transmitting member. Thereby, it is possible to achieve the configuration that the vibration presentation is performed. 
     Consequently, for example,  FIG. 11A ,  FIG. 11B  and  FIG. 11C  show the vibration presentation apparatus  1100  that is the embodiment according to the present invention. The transmitting member that expands and contracts itself and enables to present the vibration is molded into a belt-shape. The vibration presentation by using this transmitting member can be achieved. Here,  FIG. 11A  is a plan view showing the outline of the configuration of the vibration presentation apparatus  1100  in a case that such the transmitting member  1101  is formed with a belt-shape,  FIG. 11B  is a perspective view showing an example that the belt illustrated in  FIG. 11A  which is composed of the transmitting member  1101  constructs the closed loop by being connected to one end side and the other end side, and being coiled one turn via a belt adjuster  1110 , and  FIG. 11C  is a plan view showing an example that the transmitting members  1201  are intermittently disposed in a base material of the belt  1270  and are electrically connected each other, being different from  FIG. 11A  and  FIG. 11B . 
     As shown in  FIG. 11A ,  FIG. 11B  and  FIG. 11C , the example of the vibration presentation apparatus  1100  overall comprises the transmitting member  1101 , the belt adjuster  1110  provided with the transmitting member  1101  and the control unit  1130 . 
     For example, because of utilizing the piezo effect, the piezoelectric material such as stretchable ferroelectric polymers (for example, polyvinylidene fluoride (PVDF), polylactic acid laminated film, or the like), an electrically conductive polymer actuator, or the like is used for the transmitting member  1101 . Since such the material can expand and contract itself by applying a predetermined current to the material at a predetermined timing, the material is formed so as to be used as the actuator and like. Then, in the vibration presentation apparatus  1100 , the transmitting member  1101  expands and contracts by applying the above predetermined current and the like from the control unit  1130  to the transmitting member  1101  that is composed of such the material. Thereby, the varying tension Ts is applied to the vibration presentation object, and then the vibration is presented to the vibration presentation object. 
     The above belt-shape transmitting member  1101  is wound around the vibration presentation object, and the belt adjuster  1110  is used for retaining the wound state and enables to use a buckle of the belt and the like that is generally used. Thus, in the vibration presentation apparatus  1100 , in a case that the vibration presentation object is the user, the above user winds the transmitting member  1101  around the breast and the like of the user and retains the above state by using the belt adjuster and the holding tension Tc can be generated. Therefore, with reference to the above transmitting member  1101 , if only the varying tension Ts on a basis of the acoustic information and the like is generated, it is possible for user to perform the vibration presentation. 
     The control unit  1130  is the apparatus that controls for expanding and contracting the transmitting member  1101  by applying the above predetermined current and the like to the transmitting member  1101 . Thus, the control unit  1130  is electrically connected to the transmitting member  1101 , and is embedded in the power supply such as the battery or the like. The power switch SW, the adjustment dial and the like, as well as those which are disposed on the holder  110  described in the vibration presentation apparatus  100  according to the present invention, are disposed on the outer covering of the control unit  1130 . The acoustic signal S and the like from the portable music reproducing apparatus WM and the like, as shown in  FIG. 1 , are inputted into and are outputted from the control unit  1130 . 
     In a case of the above vibration presentation apparatus  1100 , the vibration presentation according to the present invention is performed, for example, in accordance with the flowchart shown in  FIG. 12 , as well as the above vibration presentation apparatuses  100  and  9000 . 
     That is, the method for using the vibration presentation apparatus  1100  in accordance with the embodiment according to the present invention basically is similar to the flowchart of the method for the vibration presentation apparatus  100  as shown in  FIG. 8 . However, since the transmitting member  1101  itself has the stretch function in a case of the vibration presentation apparatus  1100 , the vibration presentation apparatus  1100  is different from the vibration presentation apparatus  100  with respect to the points that the vibration presentation apparatus  1100  does not have the holder such as the vibration presentation apparatus  100  and does not need to apply the retaining tension Tc by another means. The vibration presentation apparatus  1100  can apply the retaining tension Tc by winding the belt-shape transmitting member  1101  around the vibration presentation object by using the belt adjuster  1110 . 
     Thus, in a case that the vibration presentation apparatus  1100  according to the present embodiment, as shown in the flowchart of  FIG. 12 , when the vibration presentation object O is the user being a human, at first the user winds at least one turn of the transmitting member  1101  around the breast and the like of the above user with clothes on (Step S 10 ). 
     At this time, after winding the transmitting member  1101  around the breast and the like, the transmitting member  1101  is retained at the breast and the like of the user via the belt adjuster  1110  (Step S 20 ). For that reason, the vibration presentation apparatus  1100  does not need to apply the retaining tension Tc by another means, such as the vibration presentation apparatus  100  according to the above embodiment. 
     Continuously, the acoustic signal S and the like are inputted into the control unit  1130  of the vibration presentation apparatus  1100  (Step S 30 ). The driving signal on a basis of the acoustic signal S and the like is inputted into the transmitting member  1101 . By expanding and contracting the transmitting member  1101  itself in response to the driving signal, the varying tension Ts based on the above driving signal is generated (Step S 40 ). Thereby, the vibration is transmitted to the vibration presentation object via the transmitting member  1101 . 
     In this connection, as described above, an enforcement of the present invention is enabled even by using the transmitting member itself having the stretch function. In a case of the vibration presentation apparatus  1100 , the transmitting member  1101  itself is formed with the belt-shape, however, it is not limited to the above configuration in a case that the transmitting member itself has the stretch function. Thus, for example, the base material  1270  of the belt is formed separately, such as the vibration presentation apparatus  1200  according to the embodiment of the present invention shown in  FIG. 11B . Materials  1201  having a self-stretching function as the transmitting member itself may be intermittently disposed in the base material  1270  of the belt and may be electrically connected each other, and then the materials  1201  may be electrically connected to the control unit  1230 . 
     In a case of adopting such the configuration, the material, which similarly expands and contracts in response to expanding and contracting by means of the transmitting member  1201  itself, are used in the base material  1270  of the above belt. The expanding and the contracting of the transmitting member  1201  are transmitted to the vibration presentation object via the base material  1270  of the belt, and then the vibration can be transmitted to the vibration presentation object. 
     Further, in the present invention, for example, the vibration presentation apparatus  1300  that is a further different embodiment is shown in  FIG. 13A  and  FIG. 13B . The vibration presentation apparatus  1300  comprises a draw-in mechanism  1305  of the transmitting member  1301  that the both ends of the transmitting member  1301  are drawn inwardly. The above draw-in mechanism  1305 , which alternates the driving mechanism or cooperates with the driving mechanism, can generate the predetermined tension to the transmitting member  1301  by winding the transmitting member  1301  on the draw-in mechanism  1305 . Here,  FIG. 13A  and  FIG. 13B  show the vibration presentation apparatus  1300  that is the embodiment according to the present invention,  FIG. 13A  is a plan view showing the outline of the configuration in a case that the transmitting member  1301  is wound in a draw-in mechanism  1305 , and  FIG. 13B  is a perspective view showing a state that the transmitting member  1301  is rewound from the draw-in mechanism  1305  shown in  FIG. 13A  and the two holders  1310  and  1320  are connected. 
     The vibration presentation apparatus  1300  shown in the above  FIG. 13A  and  FIG. 13B , which is similar to the above vibration presentation apparatus  100  of the present invention in appearance, comprises the first holder  1310 , the first bobbin cover  1310   c , the second holder  1320 , the second bobbin cover, the power switch SW disposed on the second holder, and the like. The draw-in mechanism  1305  that the both ends of the transmitting member  1301  are drawn inwardly is provided with the vibration presentation apparatus  1300 , and is not provided with the vibration presentation apparatus  100 . This is a different point between the vibration presentation apparatus  1300  and the vibration presentation apparatus  100 . 
     The above draw-in mechanism  1305  comprises a mechanism that the transmitting member  1301  is drawn from the both ends of the draw-in mechanism  1305  to the inside of the draw-in mechanism  1305 , and is housed in the inside of the draw-in mechanism  1305 . A mechanism (for example, a cord retraction assembly which is disclosed in Japan Unexamined Patent Publication No. 2002-536943) that, for example, utilizes the flat spiral spring and the like, which are generally used in a cord reel and a retractable cable adapter and the like, can be used for the above mechanism. 
     For that reason, in a case that the above draw-in mechanism  1305  is disposed, since the transmitting member  1301  can be retained by the predetermined retaining tension Tc by means of the draw-in mechanism  1305 , in a case that the first holder  1310  and the second holder  1320  as well as the above vibration presentation apparatus  100  are used, the above draw-in mechanism  1305 , which alternates the driving mechanisms such as the motor disposed on the first holder  1310  or cooperates with the driving mechanisms, can generate the predetermined tension Tc to the transmitting member  1301  by winding the transmitting member  1301  into the inside of the draw-in mechanism  1305 . 
     Therefore, in the above case, the driving mechanism that is disposed on the above first holder  1310  is solely used to generate the varying tension Ts to the transmitting member  1301 . Thereby, the vibration presentation can be performed to the vibration presentation object. 
     As well, in the example of the above vibration presentation apparatus  1300 , an example of using the two holders  1310  and  1320  is described. However, it is not limited to this case, using only the one holder such as the above vibration presentation apparatus  9000  is possible. In this case, it is possible to generate the retaining tension Tc to the transmitting member by alternating the driving mechanisms of the above embodiment  9000  or cooperating with the driving mechanism of the above embodiment  9000 . 
     In a case of using the draw-in mechanism  1305 , as described above, it is possible to retain the transmitting member  1301  by means of the predetermined holding tension Tc. Then, for example, in a case that the driving mechanisms  7000  described in  FIG. 7  is used in the portions of  1313 C and  1323 C described as the components of the holders shown in  FIG. 13A  and  FIG. 13B , the configuration that the flat spiral spring Sp, the bobbin  703  and the rotational shaft Ps of the bobbin are eliminated, the transmitting member  1301  is directly connected to the casing  709 , and the vibration presentation by means of the varying tension Ts from the voice coil VC is performed, is possible. 
     EXPLANATION OF REFERENCE NUMERALS 
     
         
           100 ,  1000 ,  1100 ,  1300 ,  9000  vibration presentation apparatus 
           101 ,  101   a ,  10113 ,  701 ,  1101 ,  1301  transmitting member 
           101 B belt-shape transmitting member 
           101 N net-shape transmitting member 
           110 ,  1010  first holder 
           113  first bobbin 
           113   c ,  1313   c  first bobbin cover 
           113   ch  hole of first bobbin cover 
           115  first motor 
           120 ,  1020  second holder 
           123  second bobbin 
           123   c ,  1323   c  second bobbin cover 
           123   ch  hole of second bobbin cover 
           125  second motor 
           703 ,  903 A,  903 B bobbin 
           709  casing (of retaining tension section) 
           900  holder 
           903 Ac,  903 Bc bobbin cover 
           903 Bch hole of bobbin cover 
           905  motor 
           1110  belt adjuster 
           1130 ,  1230  control unit 
           1305  draw-in mechanism 
         S acoustic signal 
         Tc retaining tension 
         Ts varying tension 
         AM auxiliary member 
         O vibration presentation object (user or the like) 
         WM portable music reproducing apparatus 
         Vc varying tension adjustment dial 
         Cb connection member 
         Ct, Ct′ connector 
         Amp amplifier 
         Bt battery 
         Ms motor shaft 
         Sp flat spiral spring 
         Fm fixing member 
         Ps shaft 
         VC voice coil 
         Ob vibration body 
         Sup support 
         MG magnet