Patent Publication Number: US-2003230222-A1

Title: Lifted type computer desk set

Description:
BACKGROUND OF THE INVENTION  
       [0001] 1. Field of the Invention  
       [0002] The present invention relates to a lifted type computer desk set and particularly to computer desk set in which a movable desk board can be lifted relative to a main desk board to reveal the keyboard for operation a computer or move backward to form a flat desk top.  
       [0003] 2. Description of Related Art  
       [0004] It is known that the computer has been popular over the ordinary families in addition to being an indispensable tool in all businesses in this information era. Due to various computerized equipment being available, the study room or the bedroom in a house are too limited to place the computer and related peripheries. Thus, it is a core problem to settle the computer and the related peripheries such that it is required to consider if the input device such as the keyboard or the mouse can be operated and if the space is available for reading and writing. Accordingly, the so-called computer desk set has been developed and made for the need.  
       [0005] The conventional computer desk set losses the function of a desk because of CRT display occupying most space of the desktop so that the manufacture has developed an under-desk type design of the computer desk set to keep the desktop flat and to avoid the harm of radiation at the same time. However, the under-desk type computer desk set has deficiencies in that the data material has to be passed over the display and leave it at a far front side or a lateral side between the user and the display. It results in the tired eyes of the user and fatigues and harms of the shoulder, the neck, the waist and the vertebrate after a long period of using.  
       [0006] Currently, there is a trend that the liquid crystal display is becoming the main stream of computer display. Hence, the under-desk type computer desk set has been incompatible with the needs. Usually, the small sized liquid crystal display is placed on the desktop next to a desk edge opposite to the user or clamped to the desk edge. While in use, the total distance between the user and the display is the depth of the desk and the pulled out portion of the keyboard rack such that the user is obliged to lean forward in order to see the typed data shown on the display. In this way, it is very easy to cause the over used eyes and the muscle fatigue resulting from incorrect posture.  
       SUMMARY OF THE INVENTION  
       [0007] The crux of the present invention is to provide a lifted type computer desk set, which includes a desk body and a movable desk board. The desk body has a main desk board at the top thereof, a recess opening at the front side thereof and a keyboard rack at the lower side thereof and is supported with a leg device. The movable desk board has the size and the shape thereof corresponding to the recess opening and is pivotally connected to one or two lateral edges of the recess opening with a pivot part. A keyboard on the keyboard rack can be revealed while the movable desk board is lifted such that a sight distance to the display can be shortened. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0008] The present invention can be more fully understood by reference to the following description and accompanying drawings, in which:  
     [0009]FIG. 1 is an exploded perspective view of a computer desk set with a movable desk board according to the present invention;  
     [0010]FIG. 2A is a perspective view of the computer desk set with a movable desk board shown in FIG. 1 illustrating the movable desk board having been lifted;  
     [0011]FIG. 2B is another perspective view of the computer desk set with a movable desktop similar to FIG. 2A illustrating the movable desk board having been lifted an angle different from that shown in FIG. 2A;  
     [0012]FIG. 3 is a perspective view of the movable desk board shown in FIG. 1 illustrating the rear side thereof;  
     [0013]FIG. 4 is a side view of the movable board shown in FIG. 3;  
     [0014]FIG. 5 is a further perspective view of the computer desk set of the present invention illustrating another embodiment thereof having a liquid crystal display instead of the movable desk board;  
     [0015]FIG. 6 is a plan view illustrating the movable board being turned to another angular position; and  
     [0016]FIG. 7 is a perspective view illustrating a lock part of the computer desk set under a situation of a main desk board thereof being removed. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
     [0017] Referring to FIG. 1, a computer desk set with a movable desk board according to the present invention is basically comprised of a desk body  1 , a movable desk board  2  and at least a pivot part  3 .  
     [0018] Wherein, the desk body  1  at the top thereof is a main desk board  11  and the main desk board  11  at the front side thereof has a recess opening  111  for receiving the movable desk board  2 . A keyboard rack  12  is fixedly disposed under the recess opening  111  for placing a keyboard A. The main desk board  11  at two opposite lower lateral sides thereof connects with a conventional leg part  13  for supporting the main desk board  11  so as to form the desk body  1 . The leg part  13  as shown in FIG. 1 is provided with four leg posts  131  but it is noted that the leg part  13  provided with the leg posts  111  is an example only and any other leg part  13  possible to support the main desk board  11  or a support structure used for the partition screen in OA office furniture can be adopted.  
     [0019] The movable desk board  2  has a size with the shape thereof corresponding to the recess opening  111  so as to be inserted into the recess opening  111  and the movable desk board  2  is pivotally connected to one or two lateral edges of the recess opening  111  with the pivot part  3  respectively such that the movable desk board  2  can be lifted up or pressed down rotationally relative to the main desk board. Besides, in order to be flash with the main desk board  1  during closing the recess opening  111 , the movable board  2  at the rear side thereof has an oblique board edge  21  to intersect with an oblique recess edge  112  at the rear side of the recess opening  111 .  
     [0020] The pivot part  3  is composed of a pivot seat  31  and a bearing seat  32 . The pivot seat  31  has a pivot post  311  to be inserted into a corresponding bearing hole  321  at the bearing seat  32  such that the pivot seat  31  can rotate with respect to the bearing seat  32 . As soon as the pivot seat  31  and the bearing seat  32  are fixedly attached to the lateral sides of the movable board  2  in a way of corresponding to each other, the movable board  2  can perform the function of being lifted up or pressed down. Alternatively, the pivot part  3  can be the rotational shaft with a function of positioning stagnation, which is utilized in a notebook computer, so that it is possible for the movable board  2  to stagnate at a certain position as desire during the process of being lifted up or pressed down.  
     [0021] Referring to FIGS. 2A and 2B, a liquid crystal display B is placed at the rear side of the main desk board  11  and the movable desk board  2  can be lifted to reveal the keyboard rack  12  under the front side of the main desk board  11  before the computer being started such that the user can operate the keyboard A directly without pulling out the keyboard rack  12 . Because the keyboard A is flush with or disposed deeper inside than the front side of the main desk board  11  and occupies little space, the sight distance can be reduced during the computer desk set of the present invention is used so that harms such as over used eyes and fatigued muscle can be diminished effectively.  
     [0022] In order to promote the work efficiency and to utilize the limited space effectively, as shown in FIGS. 3 and 4, the movable desk board  2  at the rear side thereof is possible to be mounted with a reading shelf  4  for holding books or documents different in size and thickness so as to facilitate reading or data recording or typing. The reading shelf  4  provides two guide rods mounted to the rear side of the movable desk board  2  in parallel with a gap formed between the movable desk board  2  and each guide rod  41  and an L shaped support frame  42  for placing books or documents with the horizontal plate portion of the support frame  42  having two eccentric holes  421  passed through by the two guide rods  41  such that the support frame  42  can be moved longitudinally along the guide rods  41 . Referring to FIG. 4, the eccentric holes  421  are perpendicular to the guide rods  41  during the support frame  42  tilts backward so that the support frame  42  can be slid adjustably. When the books and the documents are placed on the support frame  42 , the support frame  42  becomes horizontal due to the moment of the books and the documents such that the eccentric holes  421  become oblique to jam the guide rods  41  and prevent the support frame  42  from sliding downward. Besides, a spring plate  422  can be added at the back of the upright plate portion of the support plate  42  to keep the support plate  42  in a state of jamming.  
     [0023] Further, the two guide rods  41  at the upper parts thereof have a press piece  43  respectively and the press piece  43  is a stick  431  at both ends thereof extending an arm end  432  respectively. Each of the arm ends  432  at the free end thereof has a catch part  433  and it can be seen in FIG. 4 that the catch part  433  is a sharp cone shape. But, it is noted that the catch part  433  can be another shape such as a ball, a hand palm or a foot palm except the sharp cone to enhance the pleasure of reading. The stick  431  at the intersection of the corresponding guide rod  41  extends a guide part  434  such as a projection or a recess to catch the guide rod  41  so as to be adjusted longitudinally for complying with the size of the book or the document. When the stick  431  moves to clamped article, the stick  431  turns downward to allow the catch part  433  pressing the books or the documents firmly.  
     [0024] Referring to FIG. 5, it can be seen that a liquid crystal display is mounted to the rear side of the movable desk board and, in this way, the work efficiency can be promoted and the space can be utilized effectively.  
     [0025] Referring to FIGS. 6 and 7, the movable desk board  2  and the main desk board  11  are turned by way of the pivot part  3  and a stop part  5  is disposed at a lateral edge of the recess opening  111 . The stop part  5  at an elongated groove  51  thereof is passed through with a conventional fastener such as a screw such that the stop part  5  can be attached to the bottom side of the main desk board  11 . The user can adjust the stop part  5  forward or backward to change the position of a lateral extending stop tongue  52  at an end thereof such that the movable desk board  2  can be retained with the stop tongue  52  due to a shear force and the elevation angle of movable desk board  2  can be changed intentionally to a proper location. Hence, the user can adjust the reading shelf  4  to a proper angular position by way of the preceding adjustment to acquire the most comfortable environment for operating the computer, reading and writing.  
     [0026] It is appreciated that a lifted type computer desk set according to the present invention has the advantages listed hereinafter:  
     [0027] (1) The computer desk set of the present invention can be formed as an ordinary desk in addition to being possible for operating the computer. Further, the movable desk board can be pivotally lifted as a reading shelf for holding books or documents different in size and thickness and being available for reading books or printing data.  
     [0028] (2) The computer desk set makes the display, books, documents, the keyboard and the user being lined up without deviation so that the user can feel the comfort resulting from the human engineering.  
     [0029] (3) Owing to the keyboard rack being unnecessary to be pulled out before the keyboard being operated, the sight distance between the keyboard and the display can be shortened to decrease the harm resulting from the over used eyes and muscle fatigue. In addition, the computer desk set of the present invention offers a sound work environment in accordance with the requirement of the human engineering and a well arrangement of limited space.  
     [0030] While the invention has been described with reference to the a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.