Patent Description:
In recent years, concern over viral infections has increased, and the spread of infections, especially within healthcare facilities, has become a major problem. Barcode readers and other optical information readers used in the medical field may also serve as a medium for bacterial and viral infections. Therefore, at least the gripping parts of the readers used at medical sites, etc., which are gripped by users, must be wiped and disinfected to prevent infection and maintain cleanliness. <CIT> discloses the following: A hand held bar code scanning device includes scanning circuitry to conduct bar code scanning and a manually actuated optical trigger switch, connected to the scanning circuitry, to initiate bar code scanning. <CIT> discloses the following: A method and apparatus for switching an optical imaging reader between a hands-free mode and a handheld mode using two or more tactile sensors, both of which are actuated by cutaneous contact in order to switch from the hands-free mode to the handheld mode, and which switches from the handheld mode to the hands-free mode if one of the tactile sensors is no longer actuated by cutaneous contact. <CIT> discloses the following: A hand-held scanner has a head containing scanning components, a hilt position between the head and a handle that is sized and shaped to rest against an upper surface of a users thumb and index finger. An endcap is secured to a free end of the handle that has a circumferentially and outwardly extending bumper, which, together with the hilt, protect the scanner from impact and dropage. A trigger extending outwardly from the handle, extends a significant distance forward of the handle to provide a tactile queue for users to blindly grip the handle and position an index finger on the trigger. The handle preferably has a tubular, seamless shape to avoid irritation with a users hand when gripped. A window in the head is recessed and angled to inhibit damage and contact with foreign objects. <CIT> discloses the following: A hand-held optical scanning device has a body gripped between distal and proximal ends thereof. An optical scanner disposed therein is arranged to scan objects in a direction which is outward from the distal end. A first resilient member is located at the distal end and forms a first resting surface. A second resilient member is located at the proximal end and forms a second resting surface for the device, as well as either an eyelet or hook for supporting the device. <CIT> discloses the following: A scanner that includes a pressure-sensitive component and a haptic feedback component. The pressure-sensitive component can active a function of the scanner. The scanner may include a biometric-sensitive component which may activate additional or similar functions of the scanner. When a function is activated, a plurality of haptic feedbacks may be presented by the haptic feedback component. A method of manufacturing the scanner is also provided.

The scope of protection of the invention is defined by the appended claims.

It is known that an optical information reader is provided with a trigger switch etc., which is pressed and operated when starting the reading process. Such readers are configured so that the trigger switch and other switches are exposed outside through the housing that constitutes the outer contour. In such a device configuration, the trigger switch or other operating part is provided as the driving mechanism. This causes the problem that it takes time to wipe away bacteria and viruses from the driving parts, etc., and there is another concern that the wiping and disinfection may be inadequate. In the case of the barcode reader disclosed in Patent Document <NUM> listed above, there is exemplified a configuration that eliminates the drive portion by providing touch electrodes on both sides of the housing to detect the user's finger contact. However, even if the drive portion is eliminated in this way, a groove, step, etc. is formed between the outer edges of the touch electrodes exposed outside from both sides and the surrounding housing portion. Hence, this does not adequately solve the wiping and disinfection problem described above.

The present invention has been made to solve the aforementioned problems, the object of which is to provide a configuration that enables easy implementation of wiping disinfection to the gripping handle where the operating means is provided.

In order to accomplish the foregoing object, the invention provides an optical information reader (<NUM>, 10a to 10c) according to claim <NUM>.

The reference numbers in each of the brackets indicate the correspondence with the specific means described in the embodiments described below.

According to the invention, the gripping handle, which is grasped by the operator, is formed as part of the housing. The gripping handle has a predetermined operating surface portion that the operator touches when initiating a predetermined process related to the reading device. The gripping handle is provided with a detector that detects the state that the determined operating surface portion is being touched. The detector is provided, in the gripping handle, at a position that is on the inner side of the gripping handle relative to the predetermined operating surface portion.

This allows the detector to be utilized as a means of operation performed by the operator, and the detector is provided on the inner surface of the gripping handle. Therefore, the above predetermined operating surface portion and its surroundings can be composed of only an outer surface of the housing without grooves, steps, etc. to be formed thereon. Therefore, it is possible to realize an optical information reader on which it is possible to easily perform wiping and disinfection on the gripping handle where various operating means are provided.

According to the invention, the gripping handle is formed at a part thereof, the part being formed by one of the plurality of cases and excluding a joint left between the cases. Hence, any joint made between cases can be formed on the gripping handle, thereby making it easier to wipe and disinfect the gripping handle.

According to the invention, the detector is provided as a piezoelectric sensor capable of sensing distortion caused on the predetermined operating surface portion. This allows the operator to press a given operating surface portion with a finger even when the operator is holding the gripping handle, thereby improving the workability of reading and other operations.

In an example which is not part of the invention, the detector is provided as a capacitive sensor capable of sensing changes in a capacitance caused on the predetermined operating surface portion. In other words, there is no need to form gripping handles and housings so that the operating surface portion is distorted in a given state by the operator's operation, thereby reducing the variation in dimensional accuracy required for gripping handles and housings.

According to the invention, the cases have a part composing and providing the predetermined operating surface portion, the part composing and providing the predetermined operating surface portion being made thinner than a remaining part of the cases. This makes it easier for the detector to detect the state in which the operating surface portion is being touched, thereby increasing the detection accuracy by the detector, i.e., the operability of the device.

In an embodiment, the optical information reader comprises a vibrator which vibrates when the state where the predetermined operating surface portion is touched by the operator is detected, the vibrator being arranged at another position in the operating handle, which is opposed to the predetermined operating surface portion. This allows the vibrator to vibrate in a predetermined state when the operator touches the operating surface portion when initiating the predetermined process, and the operator can obtain tactile feedback in response to the vibration.

In an embodiment, the optical information reader is provided with a loading stand, wherein the loading stand has a loading surface on which the optical information reader is loaded; and a magnet which is arranged at a position located inside the housing, the position being opposed to a further part of the housing. This means that, when the optical information reader is loaded on the loading stand, the magnet on the loading surface attracts the magnet on the inner side of the housing and holds the reader in place. Since the optical information reader does not need to be fixed to the loading stand, the part of the reader placed on the loading stand can be easily disinfected by wiping.

Since the part of the housing which is opposed to the loading surface is not the gripping handle, the gripping handle does not come in contact with the loading stand during its loading, and thus the gripping handle can be kept cleaner.

In an embodiment, the predetermined operating surface portion is formed to have a central surface portion and a peripheral surface portion around the central surface portion, the central surface portion being protruded outward than the peripheral surface portion does, and the detector is configured to detect distortion caused in the peripheral surface portion. This makes it easier for the fingers to contact the central surface portion with the predetermined operating surface portion during operation, compared to the case where the predetermined operating surface portion is formed in a flat shape. Even if the central surface portion protrudes outward, the detector can detect the distortion that occurs in the peripheral surface portion, so that detection accuracy is not reduced.

In an embodiment, the housing is provided with a protrusion protruding inwardly and being positioned on and inside the central surface portion of the predetermined operation surface, and the detector is configured to detect distortion caused in the predetermined operating surface portion depending on amounts of inward changes of the protrusion. When the operating surface portion is touched, the central surface portion is the most deformed, whereby the amount of inward movement of the protrusion located on the inner surface side of this central surface portion can be increased. The detection accuracy of the detector, i.e., the operability of the device, can thus be improved.

In an embodiment, the reading device is configured to optically read the optical information via a reading port formed on the housing, the housing is provided with an extension which extends toward the reading port from a space between a lower edge of the reading port, the lower edge locating to face the gripping handle, and the gripping handle, and the housing houses components therein such that the optical information has a center of gravity, when the reader is projected to a predetermined surface on which the reader is loaded with both an upper edge of the reading port and a tip edge of the extension being directed downward, such that the center of gravity is contained in a range formed between a contact portion provided between the upper edge and the predetermined surface, and between a contact portion provided between the tip edge and the predetermined surface. This means that the upper edge of the reading port and the tip edge of the extension will be lower in relation to the desk surface, etc., depending on the extension's extension length. In such a state, when the optical information reader is loaded, the gripping handle can be kept cleaner because the gripping handle does not come into contact with the desk surface or other surfaces in this loaded state.

In an embodiment, the casing is provided with a sound generating unit that generates a predetermined sound, the housing has a sound emission hole for sound emission of the predetermined sound to the outside, and a double-sided tape for bonding a sheet for closing the sound emission hole to the housing has an opening larger than the sound emission hole. This also prevents the double-sided tape from covering the sound emission hole, even when double-sided tape is used to adhere the sheet to the housing to close the sound emission hole in an attempt to keep it clean. Therefore, compared to the case where even the double-sided tape covers the sound emission hole, the reduction in the sound pressure of a given sound emitted to the outside can be suppressed.

In an embodiment, the optical information reader comprises a reporting unit that reports cleaning instruction information that prompts cleaning work of the optical information reader at predetermined timing. This not only makes it easier for cleaning work to be performed at the right time for that cleaning work, but also prevents forgetting to perform the work.

In an embodiment, the reporting unit receives instructions from an upper-level terminal and reports the cleaning instruction information. This allows the upper-level terminal to easily adjust the timing of reporting cleaning instruction information.

In an embodiment, the optical information reader comprises an acquiring unit for acquiring worker information that identifies a worker who has performed the cleaning work, and a memory unit in which the worker information acquired by the acquiring unit is stored together with information on the cleaning work. This allows not only easy management of work history, etc. based on the information stored in the memory unit, but also easy adjustment of the timing of reporting the above cleaning instruction information according to the actual work situation.

In an embodiment, the optical information reader comprises a cleaning work detector capable of detecting a state in which cleaning work has been performed on the optical information reader, and the memory unit stores, therein, detection results detected by the cleaning work detector. This allows a more reliable work history to be kept, and the timing of reporting the above cleaning instruction information can be adjusted to the actual situation.

In an embodiment, at least part of the information stored in the memory unit is transmitted to an upper-level terminal, and the reporting unit receives instructions from the upper-level terminal and reports the cleaning instruction information. This allows the upper-level terminal to easily collect the work history regarding the controlled optical information reader, so that the timing of reporting the above cleaning instruction information can be appropriately adjusted to the actual work situation.

In an embodiment, the optical information reader comprises: a body temperature measuring device capable of measuring a body temperature of a patient when patient information identifying the patient is read from the optical information by the reading device, and a determination unit for determining whether the patient is in a febrile state based on the results of the measurement by the body temperature measuring device. This makes it possible to not only measure a patient's body temperature with an optical information reader that can be easily wiped clean and disinfected, but also to easily determine whether the patient has a fever, thereby reducing the nursing burden on the patient.

In an embodiment, the reading device optically reads the optical information through a reading port formed in the housing, the housing is provided with an extension extending in a laminate shape in a direction toward the reading port from between the gripping handle side edge of the reading port and the gripping handle, and a coil for wireless power transmission is disposed within the extension. Thus, because the coil for wireless power transmission is placed in the extension extending in a thin plate shape, the heat generated in the coil during power transmission is dissipated from both surfaces of the extension, which are opposed to the reading port and the gripping handle, respectively. The longer the extension length, the larger the heat dissipation area by the surfaces opposed to the reading port and the gripping handle. Thus it is possible to improve the heat dissipation related to the heat generated by the coils for wireless power transmission in accordance with the extension length.

In an embodiment, the coil for wireless power transmission is bonded to an inner surface of the housing portion comprising the extension, the inner side to which the coil is bonded being located closer to the reading port than a remaining of the inner side thereof is. When the surface of the extension which is opposed to the gripping handle (hereinafter referred to as the "loading-side surface") is placed on the charging surface of the charger to receive power supply, the loading-side surface has poor heat dissipation due to the proximity of the charging surface. Meanwhile, the surface of the extension which is opposed to the reading port (hereinafter referred to as the reading port side surface) is hardly affected by the charging surface in terms of its heat dissipation.

For this purpose, the coil for wireless power transmission is bonded to a part of the inner surface of the housing portion composing the extension, in which the part is opposed to the reading port. Hence, heat generated in the coil for wireless power transmission during charging is more easily transferred to the reading port side surface, which has better heat dissipation, so that the heat dissipation effect by the thin-plate extension can be further improved.

With reference to the accompanying drawings, a first embodiment of an optical information reader according to the present invention will now be described.

The present embodiment provides an optical information reader <NUM> configured as a portable reading device which is able to optically read information, i.e., optical information, such as information codes (for example, a barcode and a QR code (registered trademark).

As shown in <FIG>, the optical information reader <NUM> has a housing <NUM> that constitutes its outer contour. The housing <NUM> has an upper case <NUM> through which a reading port <NUM> is formed and a lower case <NUM> to which a gripping handle <NUM> is formed, which is grasped or gripped by an operator. The upper case <NUM> and the lower case <NUM> are mutually assembled to form a housing space for various electronic components. The upper case <NUM> is formed to provide the reading port <NUM>. The upper case <NUM> is provided with a guide <NUM> extending in the direction in which the reading port <NUM> is directed (hereinafter, the direction is also referred to as forward direction or frontward direction) to facilitate the orientation of the reading port <NUM> toward the information code. The guide <NUM> has a top surface which is parallel to the combined surfaces of the upper case <NUM> and lower case <NUM>.

The lower case <NUM> is formed to mutually integrate the assembly part <NUM>, which is assembled below the upper case <NUM>, such as the guide <NUM>, and the gripping handle <NUM>, which constitutes a lower part of the lower case <NUM> which is lower than the assembly part <NUM> in the up and down directions. The gripping handle <NUM> is formed so that there are no grooves on its outer surface to facilitate wiping and disinfection, and has a connection part connected with an assembly part <NUM> is also formed to be smoothly curved.

The gripping handle <NUM> is provided with an operating base <NUM> that smoothly protrudes forward at a position below the guide <NUM>, where the operating base <NUM> can be touched by fingers holding the gripping handle <NUM>. The operating base <NUM> is configured so that a flat surface located in front functions as an operating surface portion <NUM> that is distorted by being pressed when the reading process to read the information code is started (hereinafter referred to as "reading start operation"). Specifically, the operating base <NUM> is formed so that the thickness (wall thickness) t of the lower case <NUM> of the portion providing the operating surface portion <NUM> is thinner than the thickness of the lower case <NUM> providing the other portions thereof in order to facilitate distortion of the operating surface portion <NUM>. For example, if the thickness of the lower case <NUM> comprising the other portions is formed to be about <NUM> to <NUM>, the thickness t of the lower case <NUM> at the portion providing the operating surface portion <NUM> is formed to be about <NUM> to <NUM>.

Next, the electrical configuration of the optical information reader <NUM> is described with reference to the drawings. As shown in <FIG>, the optical information reader <NUM> is provided with a controller <NUM> comprising a CPU or the like, a memory unit <NUM> comprising ROM, RAM, nonvolatile memory, or the like, and an imaging unit <NUM> configured as an optical camera provided with a light-receiving sensor (for example, a C-MOS area sensor, CCD area sensor, etc.). In addition, this optical information reader <NUM> is equipped with an illumination unit <NUM> that irradiates illumination light toward the imaging field of view of the imaging unit <NUM> and a detector <NUM> that detects the reading start operation performed for the operating surface portion <NUM>. In addition, this optical information reader <NUM> is equipped with a communication unit <NUM> that is configured as a communication interface for wireless communication with external devices such as a loading stand <NUM> such as a cradle and an upper-level terminal <NUM> such as a management server, and a buzzer <NUM> that can emit buzzer sounds such as beeps and alarm sounds. At least some of these various electronic components are housed in the housing space provided by the upper case <NUM> and the lower case <NUM> of the housing <NUM>. For example, the imaging unit <NUM> and illumination unit <NUM> are housed in the upper case <NUM> so that the imaging unit <NUM> has an imaging range in front through the reading port <NUM> and the illumination unit <NUM> illuminates the imaging field of view through the reading port <NUM>.

The detector <NUM> is a piezoelectric sensor (piezoelectric element sensor) for detecting strain generated in the operating surface portion <NUM>. As shown in <FIG>, the detector <NUM> is supported (held) by a support plate <NUM> at a location (i.e., an area or site) on the inner side of the gripping handle <NUM> via the wall of the gripping handle so as to be opposed to the operating surface portion <NUM> formed in the front of the wall. The detector <NUM> is configured to output a predetermined operation detection signal to the controller <NUM> when the distortion of the operating surface portion <NUM> exceeds a predetermined value, as an operation to start reading has been performed.

Specifically, for example, as shown in part (A) of <FIG>, if the distortion detected by the detector <NUM> is less than the predetermined value because the operating surface portion <NUM> is not distorted, the operation detection signal is not outputted to the controller <NUM> as no reading start operation is performed on the operating surface portion <NUM>. On the other hand, as shown in part (B) of <FIG>, when the distortion detected by the detector <NUM> exceeds the above predetermined value because the operating surface portion <NUM> is distorted by a predetermined amount or more of pressure, the operation detection signal is outputted to the controller <NUM> as a reading start operation (see an arrow F in part (B) of <FIG> is performed on the operating surface portion <NUM>. In parts (A) and (B) of <FIG>, the parts housed on the inner surface side of the gripping handle <NUM> are omitted from being drawn for convenience, except for the detector <NUM>.

By receiving the foregoing detection signal from the detector <NUM>, the controller <NUM> is configured to start a reading process using the captured image of an information code C (see <FIG>) captured by the imaging unit <NUM>, and to decode the data recorded in the information code C in this reading process using a predetermined decoding method. The reading results, etc. obtained in such a reading process are wirelessly transmitted to the upper-level terminal, etc. via the communication unit <NUM> at predetermined timing. The controller <NUM>, as serving together with the imaging unit <NUM>, corresponds to an example of a "reading device" that optically reads optical information such as information code C, and is housed in the housing space provided by the housing <NUM>.

As explained above, in this embodiment of the optical information reader <NUM>, the gripping handle <NUM> that is grasped by the operator is formed as part of the lower case <NUM> partly composing the housing <NUM>. The gripping handle <NUM> has an operating surface portion <NUM> to which the operator touches when initiating the reading process. The detector <NUM> is provided at a site (area) on the inner side of the gripping handle <NUM>, where the site is opposed to the operating surface portion <NUM> via a wall of the gripping handle <NUM>. The detector <NUM> is configured to detect the state in which the operating surface portion <NUM> is being touched by an operator.

This allows the operator to use the detector <NUM> as a means of operation. In particular, since the detector <NUM> is provided on the inner surface of the gripping handle <NUM>, the operating surface portion <NUM> and its surroundings can be composed only of the outer surface of the lower case <NUM> without grooves or steps formed on the outer surface thereof. Therefore, it is possible to realize the optical information reader that on which it is possible to easily perform wiping and disinfection on the gripping handle <NUM> where the operating means are provided.

In particular, the gripping handle <NUM> is formed at a site on the lower case <NUM> where three are no joints for mutually jointing cases. This eliminates the joints between cases from the outer surface of the gripping handle <NUM>, thus making it easier to perform wiping and disinfection on the gripping handle <NUM>.

And the detector <NUM> is composed of a piezoelectric sensor capable of detecting the strain generated in the operating surface portion <NUM>. This allows the operator to press the operating surface portion <NUM> with a finger(s) even while holding the gripping handle <NUM>, thus improving the workability of reading and other operations.

The detector <NUM> is not limited to being configured by a piezoelectric sensor. Instead, the detector <NUM> may be configured by other sensing means capable of detecting that the operating surface portion <NUM> is being touched, for example, such as a capacitive sensor capable of detecting changes in capacitance generated in the operating surface portion <NUM>. When the detector <NUM> is configured with a capacitive sensor, there is no need to form the gripping handle <NUM> and housing <NUM> so that the operating surface portion <NUM> is distorted to a predetermined state by the operator's operation, thereby reducing the variation in dimensional accuracy required for the gripping handle <NUM> and housing <NUM>.

The thickness t of the lower case <NUM> of the site providing the operating surface portion <NUM> is formed to be thinner than the thickness of the lower case <NUM> providing the other remaining portions (see <FIG>). This makes it easier for the detector <NUM> to detect the state in which the operating surface portion <NUM> is being touched, thereby increasing the detection accuracy required for the detector <NUM>, i.e., the operability of the device.

The operating surface portion <NUM> on which the detector <NUM> is provided on the inner surface side is not always limited to being configured as a flat surface located in front of the gripping handle <NUM>. Alternatively, the operating surface portion <NUM> may also be configured as a curved surface located in front of the gripping handle <NUM>, for example. The operating surface portion <NUM> may be provided on one side of the gripping handle <NUM> in the left-right direction orthogonal to the front-back direction, such as in the lower case 30a of the optical information reader 10a, as illustrated in <FIG>. In this modification, such a one side may be configured as a curved surface or as a smooth protruding flat surface like the operating base <NUM>.

Furthermore, the operating surface portion <NUM> may be provided on each of the foregoing left and right sides of the gripping handle <NUM>. When a pair of operating surface portions <NUM> is provided on the left and right side of the gripping handle <NUM>, the state where the fingers pinching the gripping handle <NUM> touch the respective operating surface portions <NUM> can be detected by the detector <NUM>. This detection can be used as detection of the foregoing reading start operation.

Next, the optical information reader of a second embodiment of the invention will now be described with reference to the drawings.

The second embodiment differs from the first embodiment mainly in that the device provides tactile feedback to the operator during operation. Therefore, the same reference numbers are attached to the component parts that are substantially the same or similar as or to those in the first embodiment, and the redundant description is omitted.

In this embodiment, the state in which the operating surface portion <NUM> is touched by the site (part) of the inner side surface of the gripping handle <NUM>, which is opposed to the portion <NUM>, is also detected by the detector <NUM>. In this configuration, as shown in <FIG>, a vibration actuator <NUM> is provided as a vibrator that vibrates at a predetermined vibration state in response to control by controller <NUM>.

As a result, when the operator touches the operating surface portion <NUM> to start the above reading process, the vibration actuator <NUM> vibrates at a predetermined vibration state. Therefore, the operator can obtain tactile feedback in response to the vibration. The vibration actuator <NUM> may be configured to vibrate by an ERM method, by an LRA method, or a piezoelectric method, for instance.

The characteristic configuration of this embodiment, in which the vibration actuator <NUM> provides the operator with tactile of feedback, can be applied to other embodiments and their modifications.

Next, the optical information reader of the third embodiment of the invention will now be described with reference to the drawings.

The third embodiment differs from the first embodiment mainly in that the device uses magnets for fixing to the loading stand to facilitate the wiping and disinfection work. Therefore, the same reference numbers are attached to the component parts that are substantially the same or similar as or to those of the first embodiment, and their descriptions are omitted.

Generally, when a portable reading device is placed on a charger or a loading stand such as a cradle, it is desired that the device should not be easily moved from the placed state. In such a case, it is possible to provide a configuration with concave-convex shapes for engaging and securing both the reading device and the loading stand. However, the problem is that the uneven shape makes it time-consuming and difficult to perform the wiping and disinfection work.

For this reason, as shown in <FIG>, in the loading stand 100a on which the optical information reader 10b is placed, a magnet <NUM> is provided at a position that is the inner surface side of the loading surface <NUM>. In the optical information reader 10b, a magnet <NUM> is provided at a position on the inner surface of the housing <NUM> that is opposed to the loading surface <NUM> when being loaded on the loading stand. In the present embodiment, an extension <NUM> is formed by the guide <NUM> of the upper case <NUM> and a part of the assembly part <NUM> extending forward in the lower case <NUM>. This extension <NUM> is a portion that extends from between the lower edge of the reading port <NUM> which faces the gripping handle and the gripping handle <NUM> in the direction along which the reading port <NUM> is directed. The protrusion is formed into, almost, a thin plate. This extension <NUM> is positioned as a part of the housing <NUM> that faces the loading surface <NUM> when being loaded. At a predetermined position on the inner surface side of the extension <NUM>, the magnet <NUM> is provided.

As a result, when the optical information reader 10b is loaded on the loading stand 100a, the magnet <NUM> of the loading surface <NUM> and the magnet <NUM> of the extension <NUM> attract each other to secure the reader and stand together. This eliminates the need for uneven surfaces and other means for engaging and securing the optical information reader 10b to the loading stand 100a. Thus, wiping and disinfection of the area to be placed on the loading stand 100a can be easily performed.

In particular, as can be seen in <FIG>, a part of housing <NUM> that faces the loading surface <NUM> when being loaded is the extension <NUM>, and not the gripping handle <NUM>. Therefore, the gripping handle <NUM> does not come in contact with the loading stand 100a during the loading placement, and the gripping handle <NUM> can be kept cleaner.

The magnet <NUM> used for the fixedly loading is not limited to being placed on the inner surface side of the extension <NUM>. The magnet <NUM> should be placed on the inner surface side of a portion of housing <NUM> where the portion is opposite the loading surface, when the device is loaded on the loading stand.

The characteristic configuration of this embodiment and its modification that utilize the fixing magnet <NUM> can be applied to the other embodiments and modifications.

With reference to the accompanying drawings, an optical information reader according to a fourth embodiment of the present invention will now be described.

The fourth embodiment differs from the first embodiment, described above, mainly in that the predetermined operating surface portion is formed so that the operator's fingers can easily contact the operating surface portion during operations. Therefore, the same symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted from being redundant.

As shown in part (A) of <FIG>, the operating surface portion 34a is formed so that the central portion 34b thereof protrudes outwardly with respect to the peripheral portion 34c thereof. The detector <NUM> is configured, for example, by a piezoelectric sensor so that the strain generated in the outer circumference 34c can be detected.

This makes it easier for the fingers of an operator to contact the operating surface portion 34a at its central surface portion 34b during its contact operation, compared to the case where the operating surface portion <NUM> is formed in a flat shape. Even if the central surface portion 34b protrudes outward, the detector <NUM> can detect the distortion that occurs in the periphery area 34c. Therefore, detection accuracy of the sensor is not reduced.

As a modification of the present embodiment, the operating surface portion 34a may be provided on each of the left and right sides of the gripping handle <NUM> which are orthogonal in the direction to the front-back directions, as illustrated in part (B) of <FIG>. In such a confirmation according to the modification, the operating surface portion 34a may be formed on only one of the left and right sides.

The characteristic configuration of this embodiment and its modifications, in which operating surface portion 34a is formed so that central surface portion 34b protrudes outward with respect to peripheral surface portion 34c, can be applied to other embodiments and their modifications.

With reference to the accompanying drawings, an optical information reader according to a fifth embodiment of the present invention will now be described.

A fifth embodiment differs from the first embodiment, described above, mainly in that the center of gravity of the reader is adjusted so that the gripping handle <NUM> can be loaded on the upper side of the optical information reader. Therefore, the same symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

When a portable reading device or other device is placed on a predetermined surface such as a desk surface S, a part of the gripping handle may contact the desk surface S, and thus become dirty or being contaminated.

Therefore, in this embodiment, the optical information reader <NUM> is configured to be placed on the desk surface S with the gripping handle <NUM> upward. For this purpose, a structure is adopted in which an extending portion <NUM> that extends in the direction toward which the reading port <NUM> faces from between the lower edge that is the gripping handle side of the reading port <NUM> and the gripping handle <NUM> is utilized. This utilization structure adjusts the center of gravity position G of the optical information reader <NUM> so that the reader can be placed on the desk surface S.

Specifically, as shown in <FIG> and <FIG>, in the present embodiment, the reader is placed on the desk surface S with an upper edge 21a of the reading port <NUM> and a tip edge 12a of the extending portion <NUM> being downward. In this case, the positions of various electronic components housed in housing <NUM> are adjusted so that the center of gravity position G of the optical information reader <NUM> projected on the desk surface S is included in the range (see the reference symbols L1 in <FIG> and L2 in <FIG>) bounded by both a contract portion provided between the upper edge 21a and the desk surface S, and a contact portion provided between the tip edge 12a and the desk surface S.

As a result, the optical information reader <NUM> can be placed on the desk surface S with the upper edge 21a of the reading port <NUM> and the leading edge 12a of the extending portion <NUM> being below. In this loaded state of the gripping handle <NUM>, the gripping handle <NUM> does not come in contact with the desk surface S, so the gripping handle <NUM> can be kept cleaner or prevented from being contaminated.

In particular, in this embodiment, the extension length of the extending portion <NUM> is set so that the direction of extension of the gripping handle <NUM> relative to the desk surface S is about <NUM>° in the foregoing loaded state. This not only increases postural stability in the foregoing loaded state, but also makes it easier to hold the gripping handle <NUM> from the foregoing loaded position.

The characteristic configuration of this embodiment, in which the center of gravity position G is adjusted so that the gripping handle <NUM> can be loaded so as to be faced upward, can be applied to other embodiments and their modifications.

With reference to the accompanying drawings, an optical information reader according to a sixth embodiment of the present invention will now be described.

The sixth embodiment differs from the first embodiment, described above, mainly in that sound emission holes are closed so as to suppress the decrease in sound pressure of the buzzer sound emitted to the outside. Therefore, the same symbols are applied to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

As shown in <FIG>, the upper case <NUM> of the housing <NUM> has a sound emission hole <NUM> for emitting the buzzer sound emitted by the buzzer <NUM>, which is housed inside housing <NUM>, to the outside. In order to keep the sound emission hole <NUM>, the sound emission hole <NUM> is closed by a sheet material such as a PET sheet (hereinafter referred to simply as sheet <NUM>) that is adhered to the upper case <NUM> using double-sided tape <NUM>. In the present embodiment, the buzzer <NUM> corresponds to an example of a "sounding unit or notification unit" that is provided in housing <NUM> and is configured to emit a buzzer sound serving as a predetermined sound.

In the embodiment, a reduction in the sound pressure of the buzzer sound emitted outside through the sound emission hole <NUM> is suppressed. Therefore, as shown in <FIG>, an opening 54a larger than the sound emission hole is formed in the double-sided tape <NUM>.

This means that even when double-sided tape <NUM> is used to adhere sheet <NUM> to housing <NUM> so that the sound emission hole <NUM> is closed, the double-sided tape <NUM> will not cover the sound emission hole <NUM>. Therefore, compared to the case where even the double-sided tape covers the sound emission hole <NUM>, the reduction in the sound pressure of the buzzer sound can be suppressed.

The characteristic configuration of this embodiment, in which the opening 54a larger than the sound emission hole <NUM> is formed in the double-sided tape <NUM> that adheres the sheet <NUM>, can be applied to other embodiments and modifications thereof.

With reference to the accompanying drawings, an optical information reader according to a seventh embodiment of the present invention will now be described. This seventh embodiment differs from the first embodiment, described above, mainly in that the seventh embodiment provides predetermined notification to prevent forgetting to perform cleaning tasks such as wiping and disinfecting of the reader. Thus, the same symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

Cleaning work such as wiping and disinfection of the optical information reader <NUM> needs to be performed periodically. Therefore, it is necessary to prevent forgetting to perform such work.

For this reason, as an example, in the present embodiment, information on the work schedule of the above cleaning work is stored in advance in the memory unit <NUM>. In this example, at predetermined times according to that work schedule, cleaning instruction information that prompts cleaning work is reported. This cleaning instruction information can be aurally reported using buzzer sounds from the buzzer <NUM> or voice guidance through an abbreviated loudspeaker. Furthermore, the cleaning instruction information may be visually reported using the LED 47a provided on the upper case <NUM>, for example, as illustrated in <FIG>. The cleaning instruction information may be configured to be reported using vibration by the vibration actuator (vibrator) <NUM> described above, or light emission by LEDs or other devices belonging to illumination unit <NUM>. The above cleaning instruction information may be reported at the time when the cleaning operation should start now, or may be reported at the time when the cleaning operation should start and after a predetermined time from now. The busser <NUM>, LED 47a, and speakers can be examples of "reporting units" that report cleaning instruction information.

This notification of cleaning instruction information not only makes it easier to perform cleaning work at the right time for that cleaning work, but also prevents forgetting to perform the work.

In addition, the cleaning instruction information described above is not limited to being reported in response to information on the work schedule stored in advance in memory unit <NUM>, but may also be reported in response to instructions received from the upper-level terminal <NUM> via the communication unit <NUM>. This allows the upper-level terminal <NUM> to easily adjust the timing of reporting the above cleaning instruction information. When the reader is loaded on the loading stand <NUM>, the above cleaning instruction information may be received from the upper-level terminal <NUM> via the loading stand <NUM>, for example, or directly from the upper-level terminal <NUM> at a predetermined timing using wireless communication or other means.

The system, including the reader, can also be configured to acquire worker information that identifies the worker who performed the cleaning work, and this acquired worker information can be stored in the memory unit <NUM> together with information about the cleaning work. This allows not only easy management of work history, etc. based on the information stored in the memory unit <NUM>, but also easy adjustment of the timing of reporting the above cleaning instruction information in order to match the actual work situations. The worker information can be obtained, for example, by reading the information code in which the worker information is encoded in the above reading process. In the configuration for this example, the controller <NUM> and imaging unit <NUM>, which function as "reading devices," correspond to an example of an "acquiring unit" that acquires worker information.

As another example, a cleaning detector that can detect the status of cleaning work performed on the optical information reader <NUM> may be provided, and the detection results of this detector may be stored in the memory unit <NUM>. As such a cleaning work detector, for example, a sensor (e.g., a sensor with a function equivalent to the piezoelectric sensor employed by the foregoing detector <NUM>) can be employed at the location where the housing <NUM> is subjected to pressure by the operator who performs wiping during cleaning. Also, for example, using the fact that when the housing is wiped with alcohol, the temperature of its outer surface drops, a temperature sensor capable of detecting such a temperature drop may be employed as the above cleaning operation detector. An alcohol sensor may also be employed as the detector for the foregoing cleaning tasks. This allows a more reliable work history to be kept, and the timing of reporting the above cleaning instruction information can be adjusted to the actual situation.

It may also be configured so that at least part of the work history, etc. stored in the memory unit <NUM> as described above is transmitted to the upper-level terminal <NUM> via the communication unit <NUM>. This can be configured such that the foregoing cleaning instruction information is reported in response to instructions received from this upper-level terminal <NUM> via the communication unit <NUM>. This allows the upper-level terminal <NUM> to easily grasp the work history regarding the optical information reader <NUM> to be managed. Thus, the timing of reporting the foregoing cleaning instruction information can be appropriately adjusted to the actual work situation.

The characteristic configuration of this embodiment and modifications, such as reporting cleaning instruction information to encourage cleaning work, can be applied to other embodiments and modifications thereof.

With reference to the accompanying drawings, an optical information reader according to an eighth embodiment of the present invention will now be described.

This eighth embodiment differs from the first embodiment, described above, mainly in that the eighth embodiment is configured to determine if the patient whose temperature is measured is in a febrile state. Thus, the same reference symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

As shown in <FIG>, an optical information reader 10c is equipped with a body temperature measuring device <NUM> that can measure the patient's body temperature. The body temperature measuring device <NUM> is provided as an infrared emitting thermometer, positioned within the housing <NUM> and configured to measure the body temperature at a site of the patient to which the reading port <NUM> is directed.

In the present embodiment, patient information identifying a patient and average body temperature information of the patient are stored in the memory unit <NUM> in a database form to be associated to each other. In addition, the information code Ca, which is an encoded code of the above patient information, is displayed on the patient's wristband WB. Therefore, as illustrated in <FIG>, the foregoing reading process is started with the reading port <NUM> oriented to the patient's wristband WB. This allows the body temperature near the patient's wrist to be measured by the body temperature measuring device <NUM> when the patient information is read from the above information code Ca.

Then, a fever determination process is performed by the controller <NUM>. Through this process, the average body temperature information associated with the patient information read from the above information code Ca is compared with measurement results of the body temperature measuring device <NUM>. This allows a determination to be made as to whether the patient is in a febrile state or not. In this example, a single pressing operation on the operating surface portion <NUM> may be used to read the information code Ca and measure the body temperature by the body temperature measuring device <NUM>. After the patient information is read from the imaged information code Ca by the first pressing operation, the second pressing operation may be used to measure the body temperature by the body temperature measuring device <NUM>. The controller <NUM> that performs the above fever determination process functionally corresponds to an example of a "determination unit" that determines whether the patient is in a fever state.

Thus, not only can a patient's body temperature be measured using the optical information reader 10c that can be easily disinfected by wiping, but also whether the patient has a fever can be easily ascertained. This reduces the nursing burden on the patients.

The patient information and the average body temperature of the patient may be stored in a database, for example, at upper-level terminal <NUM>. In this case, the read patient information and the measurement results of the body temperature measuring device <NUM> can be sent to the upper-level terminal <NUM>. Therefore, the upper-level terminal <NUM> can determine whether the patient has a fever or not, and the reader can receive the result of this determination from the upper-level terminal <NUM>.

Patient information may also include medical record information that should be used to make medication decisions, etc. for that patient. In such a case, the medical record information and the measurement results of the body temperature measuring device <NUM> may be used to inform information that assists in medication decisions, etc..

The characteristic configuration of this embodiment of determining whether a patient whose body temperature is measured is in a febrile state can be applied to other embodiments and their modifications.

With reference to the accompanying drawings, an optical information reader according to a ninth embodiment of the present invention will now be described.

This ninth embodiment differs from the first embodiment, described above, mainly in that the eighth embodiment is provided with a coil for wireless power transmission which is bonded to an inner surface on a reading port side in a laminate-shaped extension. Thus, the same reference symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

As shown in <FIG>, an extension <NUM> is provided in the form of a laminate-shaped plate extending forward from between the lower edge of the gripping handle side of the reading port <NUM> and the gripping handle <NUM> in the direction along which the reading port <NUM> is directed. Inside the extension <NUM>, a coil member for wireless power transmission (hereinafter referred to simply as coil <NUM>) is located.

Thus, the coil <NUM> is positioned within the extension <NUM>, which extends in a laminate-shaped plate. Therefore, heat generated in the coil <NUM> during power transmission can be dissipated from the reading port side (hereinafter referred to as "reading port side surface 12b") and the gripping handle side (hereinafter referred to as "loading side surface 12c") of the extension <NUM>, respectively. The longer the length of the extension, the larger the heat dissipation area by the reading port side surface 12b and the loading side surface 12c. Therefore, depending on the length of the extension <NUM>, heat dissipation performance with respect to the heat generated by the coil <NUM> can be improved. In addition, the heat generated in the coil <NUM> can be difficult to transfer to the various electronic components housed inside the housing <NUM> that is different, as components, from the extension <NUM>.

In particular, in this embodiment, the coil <NUM> is bonded to the inner surface 12d, which is the reading port side, of the inner surface of the housing portion comprising the inner surface of extension <NUM>, using a thermally conductive adhesive <NUM>, but not bonded to the inner surface thereof positioned on the ripping handle side. The power supply is received by placing the loading side surface 12c of the extension <NUM> on the charging surface of the loading stand <NUM>, which acts as a charger. In this case, the heat dissipation of the loading side surface 12c is poor due to the proximity to the charging surface. However, the heat dissipation of the reading port side surface 12b of extension <NUM> is not affected by the charging surface. Therefore, by bonding the coil <NUM> to the inner surface 12d located on the reading port side, the heat generated in the coil <NUM> during charging is more easily transferred to the reading port side surface 12b, which has higher heat dissipation performance. This further improves the heat dissipation effect of the laminate-shaped extension <NUM>.

The characteristic configuration of this embodiment, in which the coil <NUM> for wireless power transmission is located in the extension <NUM> extending in the form of a thin plate, can be applied to other embodiments and modifications thereof.

With reference to the accompanying drawings, an optical information reader according to a tenth embodiment of the present invention will now be described.

This tenth embodiment differs from the first embodiment, described above, mainly in that the configuration according to the tenth embodiment is provided with a protrusion protruding from a central area of the operating surface portion inside the gripping handle. Thus, the same reference symbols are attached to the components that are substantially the same as those in the first embodiment, and their descriptions are omitted.

As shown in part (A) of <FIG>, the gripping handle <NUM> of the housing <NUM> is provided with a protrusion <NUM> protruding inwardly at a position on the inner surface side of the central surface portion 34b included in the operating surface portion 34a. In addition to this protrusion, the detector <NUM> is configured to detect the distortion caused in the operating surface portion 34a according to the inward deformation of the protrusion <NUM>.

When the operating surface portion 34a is touched by the operator or user, the central surface portion 34b is the most deformed. Therefore, the protrusion <NUM> located on the inner surface side of this central surface portion 34b can exhibit larger inward movement. Thus, the detection accuracy of the detector <NUM>, i.e., the operability of the reader and system can be improved compared with the configuration with no protrusion.

The peripheral surface portion 34c functions as the fulcrum of deformation when the operating surface portion 34a is touched by an operator. The peripheral surface portion 34c is thinner than the central surface portion 34b because of the presence of protrusion <NUM>. This makes the operating surface portion 34a even more easily deformable, which further improves the detection accuracy of the detector <NUM>. On the other hand, the thickness of the central surface portion 34b of housing <NUM> will increase. Therefore, compared to the case where the entire operating surface portion 34a is thin-walled due to the absence of protrusions <NUM>, resin flow during resin molding in the vicinity of the operating surface portion 34a is improved during manufacturing, and molding defects can thus be suppressed or reduced.

As a modification of this embodiment, an elastic member <NUM> such as a rubber member may be interposed between the protrusion <NUM> and the detector <NUM>, as illustrated in part (B) of <FIG>. This allows the stress transmitted to the detector <NUM> to be adjusted according to factors which include the thickness and elasticity of the elastic member <NUM>. For example, an excessive pressing force can be absorbed by the elastic member <NUM> to prevent damage to the detector <NUM>.

The characteristic configuration of the present embodiment in which the protrusion <NUM> is provided on the central inner surface side of the operating surface portion can be applied to other embodiments and modifications. For example, it can be applied to an operating surface portion <NUM> where the central surface portion does not protrude outward as described. The characteristic configuration in which the elastic member <NUM> is interposed between the protrusion <NUM> and the detector <NUM> can also be applied to other embodiments and modifications.

With reference to the accompanying drawings, an optical information reader according to an eleventh embodiment of the present invention will now be described.

The eleventh embodiment differs from the third embodiment, described above, mainly in that a pair of magnets lined up with different polarities in the insertion/extraction directions are used for mounting and fixing. Thus, the same reference symbols are attached to the components that are substantially the same as those in the third embodiment, and their descriptions are omitted.

In the case of the configuration for loading the optical information reader 10b on the loading stand 100a at a predetermined position (the most suitable position for charging, etc.) using the attraction between the magnet <NUM> of the optical information reader 10b and the magnet <NUM> of the loading stand 100a as explained in the third embodiment above, it is necessary to adjust the attraction force appropriately. If the attractive force between the magnets <NUM> and <NUM> is too strong, the force required to pick up the optical information reader 10b from the loading stand 100a will increase. On the other hand, if the above attractive force is weakened too much, the holding power using magnets will be weakened.

In particular, an attractive force generated in the direction perpendicular to a direction in which the two magnets face each other (in the example in <FIG>, the vertical direction) is about <NUM>-<NUM>% weaker than an attractive force generated in the direction perpendicular to that facing direction (in the example in <FIG>, the horizontal direction). This allows the above attractive force to be weakened to the extent that the reader is easy to remove. However, in that case, when an external force is applied in a direction perpendicular to the above-mentioned facing direction (in this embodiment, along the mounting surface <NUM>), the optical information reader 10b may shift from the above-mentioned predetermined position or may detach from the loading stand 100a. That is, there is a possibility that this may happen.

Therefore, in this embodiment according to the optical information reader 10d and loading stand 100b, a pair of magnets lined up with different polarity in the predetermined direction along the loading surface <NUM> (hereinafter also referred to as insertion/extraction directions) are arranged, as illustrated in <FIG> and <FIG>. This allows the optical information reader 10d to be held in the above predetermined position relative to the loading stand 100b.

Specifically, in the optical information reader 10d, the extension <NUM> has a rectangular area on its lower inner surface side that is opposite the loading surface <NUM>. Four magnets of the same size, 52a-52d, are provided at the four corners of this rectangular area. The magnets 52a and 52b located on the gripping handle side are arranged so that their poles directed to the loading surface <NUM> are S-poles, and the magnets 52c and 52d located on the side facing the gripping handle are arranged so that their poles directed to the loading surface <NUM> are N-poles. The magnets 52a and 52c consist of a pair of magnets that are positioned at a predetermined distance in the insertion/extraction directions (e.g., about one times the length of magnet 52a along the insertion/extraction directions) and are aligned in such a way that their polarities are different. Similarly, the magnet 52b and magnet 52d are a pair of magnets with the positional relationship that the magnets 52b and 42d are separated by the above predetermined interval in the insertion/extraction directions and lined up in different polarities. The above predetermined interval can be changed according to factors including the magnetic force and shape of each magnet 52a (to 52d). For example, the interval may be set at a distance of <NUM> to <NUM> times the length of the magnet 52a in the insertion/extraction directions. In <FIG>, and <FIG> which will be described below, for convenience of explanation, the magnetic poles directed to the loading surface <NUM> are "S" poles for magnets 52a and 52b, while the magnetic poles directed to the loading surface <NUM> are "N" poles for magnets 52c and 52d.

The loading stand 100b has the loading surface <NUM> facing the optical information reader 10d, which is loaded in the foregoing position of the stand. On the inner side of this loading surface, a magnet 102a, which is directed toward the magnet 52a and has an N-pole, is loaded in a position which is opposed to the magnet 52a. A magnet 102b, which is directed toward the magnet 52b and has an N-pole, is loaded in a position which is opposed to the magnet 52b. Moreover, a magnet 102c, which is directed toward the magnet 52c and has an S-pole, is loaded in a position which is opposed to the magnet 52c. moreover, a magnet 102d, which is directed toward the magnet 52d and has an S-pole, is loaded in a position which is opposed to the magnet 52d.

This ensures that even if an external force (external force to the right in <FIG>) acts on the optical information reader 10d to pull it out along the foregoing insertion/extraction directions, a counterforce against the external force can be secured. In other words, as illustrated in <FIG>, in addition to an attractive force generated between the magnets 52a and 102a and an attractive force generated between the magnets 52c and 102c, a repulsive force generated between the magnets 52c and 102a acts to counter the external force. At the same time, in addition to an attractive force between generated the magnets 52b and 102b and an attractive force generated between the magnets 52d and 102d, a repulsive force generated between the magnets 52d and 102b act to oppose the external force.

In <FIG>, for convenience of explanation, the magnetic pole of the magnet 52a which is near the loading surface <NUM> is magnetized to the "S" pole. Furthermore, the magnetic pole of the magnet 52c which is near the loading surface <NUM> is magnetized to the "N" pole. The pole of magnet 102a which is near the magnet 52a is magnetized to the "N" pole, while the pole of magnet 102c which is near the magnet 52c is magnetized to the "S" pole.

In addition, even if an external force (leftward external force in <FIG>) acts on the optical information reader 10d to push it along the foregoing insertion/extraction directions, it can still be opposed to the external force. In other words, in addition to an attractive force generated between the magnets 52a and 102a and an attractive force generated between the magnets 52c and 102c, a repulsive force generated between the magnets 52a and 102c acts to oppose such an external force. At the same time, in addition to an attractive force generated between the magnets 52b and 102b and an attractive force generated between the magnets 52d and 102d, a repulsive force generated between the magnets 52b and 102d acts to oppose such an applied external force.

Thus, the respective pairs of magnets lined up with different polarities in the insertion/extraction directions, respectively, are used for attractive required between the optical information reader 10d and the loading stand 100b. This allows the foregoing attractive and repulsive forces generated as described above, to be used as holding forces against the external force. Therefore, a strong holding structure that can resist external forces in the insertion/extraction directions can be obtained without excessively increasing the attraction forces with the magnets.

A modification of this embodiment is illustrated in <FIG>. In the magnet arrangement shown in <FIG>, the magnets 52b and 52d may be interchanged mutually and the magnets 102b and 102d may be interchanged mutually. Even in this magnet arrangement, each pair of magnets lined up with different polarities in the insertion/extraction directions can be used for the removable connection required between the optical information reader 10d and the loading stand 100b, thus still providing the foregoing advantageous effects.

The characteristic configuration of the present embodiment and its modifications, in which each pair of magnets arranged in different polarities in the insertion/extraction directions are used for loading and fixation, can be applied to other embodiments and modifications in the same way as described.

Claim 1:
An optical information reader (<NUM>, 10a - 10c) comprising:
a reading device (<NUM>, <NUM>) which optically reads optical information (C); and
a housing (<NUM>) provided by mutually combining a plurality of cases (<NUM>, <NUM>) such that the housing (<NUM>) forms a housing space therein in which the reading device (<NUM>, <NUM>) is housed,
wherein
the housing (<NUM>) includes, as one of the cases (<NUM>, <NUM>), a case (<NUM>) which forms a gripping handle (<NUM>) which is manually gripped by an operator when the operator makes the reading device (<NUM>, <NUM>) execute predetermined processing of the reading device (<NUM>, <NUM>) for reading the optical information (C), and
the housing (<NUM>) is provided with a predetermined operating surface portion (<NUM>) formed as a part of the gripping handle (<NUM>), the operator being enabled to touch an outside surface of the predetermined operating surface portion (<NUM>) when the operator grips the gripping handle (<NUM>),
characterized in that:
the gripping handle (<NUM>) is provided with a piezoelectric sensor (<NUM>) included in the reading device (<NUM>, <NUM>), the piezoelectric sensor (<NUM>) being provided inside the gripping handle (<NUM>) at a site on the predetermined operating surface portion (<NUM>),
the predetermined operating surface portion (<NUM>) has a thickness which is thinner than other portions of the gripping handle (<NUM>) such that an operator's pressing operation on the outside surface of the predetermined operating surface portion (<NUM>) causes distortion thereof and being sensed by the piezoelectric sensor (<NUM>), and
the gripping handle (<NUM>) is formed at a part of the housing (<NUM>), the part being formed by one of the plurality of cases (<NUM>, <NUM>) and excluding a joint between the cases (<NUM>, <NUM>).