JP3038425U - Wrist rest for PC keyboard - Google Patents

Abstract

(57) [Summary] [Purpose] All keyboard users have their own physical characteristics, and the positions of the home positions of both hands and the directions of fingers are different depending on the individual. However, stabilizing this position and direction is an essential condition for always ensuring the home position. It is also ideal for ergonomics. [Structure] To meet this purpose, the wrist rest of the present invention has a thick hand-shaped upper surface of the wrist rest so that the wrist can be placed in a cross shape, and in particular, a concave portion matching the wrist and the palm adjacent thereto. Molded into a curved surface shape, symmetrically independent from each other,
After customizing the position and direction by each user's own selection, it has a built-in connection link so that the left and right can be fixed, and it can be easily attached and detached and used separately for the left and right.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 This invention relates to a wrist rest for a personal computer keyboard.

[0002]

[Prior art]

 Conventionally, a linear integrated type called an armrest has been used, but the purpose of this purpose was simply to support the hands and arms according to the height of the keys on the keyboard.

[0003]

[Problems to be solved by the device]

 The armrest is placed along the front edge of the keyboard. However, with both hands of the user in the key operation posture, the hands are generally oriented in the 8:20 direction of the clock hands. In this state, the wrist or palm is in contact with the armrest at an angle, and even if the contact position of both hands unintentionally moves laterally during typing with blind touch, it is easy to get out of the home position. Especially, it was very difficult for beginners to keep a certain position.

Further, all keyboard users have their own physical characteristics, for example, the dominant hand is on the left and right, and the length of the fingers is different, so that the fulcrum of the optimal home position for each individual is fulcrum. The position and the direction of the fingers are all different. Therefore, it is essential that so-called customization is possible. This proposal was devised to solve this problem and satisfy all the above conditions.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the wrist rest of the present invention has a left and right independent structure, and the wrist and palm are crossed at right angles to the upper surface of each of these, and a hand type having a thickness so that a large area can be contacted. It has a concave curved surface and can be customized according to these factors. After determining the position and direction, a link that connects the left and right rests is built in.

Further, it is constructed so that it can be easily attached and detached so that it can be used independently even if it is disconnected from the connection if necessary.

[0007]

[Action]

 With the above configuration, if each rest is placed at the optimum position and direction that is unique to the user and the left and right are connected by a link, the position and direction of the hand and fingers are the wide contact surface of each rest, and the sensors depend on the contact feeling. As a result, the home position is automatically stabilized.

[0008]

【Example】

 Examples will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the wrist rest 1 is independent for the right hand and the wrist rest 2 is independent for the left hand. Each of these is a rectangular cube with a thickness equal to the height of the key row of the keyboard, and one outer corner is formed into an elliptical arc, and the left and right sides are symmetrically configured. This is for facilitating alignment with the front edge of the keyboard 9 as shown in FIG.

Further, as depicted by the contour lines shown in FIG. 3, the upper surface of each of these is formed into a concave curved surface shape matching a human wrist and a hand shape having the thickness of the palm adjacent thereto. There is. Note that this concave curved handprint has a shape in which the hands intersect at right angles to the wrist rest.

Further, as shown in FIG. 1, the link 3 for connection is housed in a slit provided horizontally on the long side wall of the wrist rest 1, and at the same time, one end of the link 3 vertically extends to the corner of the rest. It is attached by a screw 5 which penetrates through. A groove having a coin width is cut on this screw head so that a coin can be used as a tool at the time of fixing as described later. In the same way as these, the link 4 is attached to the rest 2 with screws 6 and is symmetrically equipped with 1.

Further, 7 shown in FIG. 1 is a thin rubber sheet bonded to the bottom surface of the rest. The rest 2 is also equipped with the same equipment. This is a non-slip to prevent slipping on the desk during use.

Now, in order to use these wrist rests, the procedure for customizing will be described. First, as shown in FIG. 2, the user's own free posture is to spread both fingers on the keyboard, and Select and determine the position and direction. At this time, place each wrist rest at right angles to the direction of the hand. If it is assumed that the Alfa Abet key is mainly used, it was confirmed that the left and right shift keys on the keyboard were the easiest to hit with each little finger, the left forefinger was the T key, and the right forefinger was the Y key. After that, turn the link in the direction of the arrow in Fig. 1 and orient it in the direction opposite to the stored state. Similarly, rotate the link 4 of the wrist rest 2 as shown in Fig. 2 and screw the slots of both stack links at the intermediate position of both rests. Pass it from the bottom to the top and tighten with the wing nut 8. Also, tighten the screws 5 and 6 with a coin. Therefore, at these three points, both wrist rests are fixed in position and direction.

[0013]

[Effect of the invention]

 Although the time required for the customization is only 10 to 20 seconds, this state is the optimal home position for the user, so the feeling of contact between the wrist and the wrists that touch the palm is a blind touch, for example. It can be used as a sensor during typing in. With this effect, you can continue to secure the best home position.

Further, since the user's own natural posture does not apply excessive tension or excessive force to the forearm or elbow, finger fatigue can be reduced to a minimum even for continuous keyboard input work for a long time. . Also, since both hands intersect at right angles to each wrist rest, each wrist is difficult to come off from the wrist rest, and at the same time, each wrist rest acts like a fulcrum of the lever for the movement of the finger hitting the key, so typing is quick. It also has the effect of significantly improving the sex. The fatigue-reducing effect described above is believed to prevent the functional disorder due to the fatigue of the fingers, which is called carpal tunnel syndrome for many professional keyboard users.

Furthermore, when the numerical keys on the right end portion of the keyboard are used continuously, the connection can be released and the right wrist rest can be moved to the position of the numerical keys and used independently.

[0016]

[Brief description of the drawings]

FIG. 1 is a perspective view of a wrist rest of the present invention.

FIG. 2 is a plan view showing an input operation state on a keyboard with both hands seen through.

FIG. 3 is a plan view in which the concave curved surface of the upper surface of the wrist rest that matches the wrist and palm is accurately drawn by contour lines.

[Explanation of symbols]

 1 Wrist rest (for right hand) 2 Wrist rest (for left hand) 3.4 Link 5.6 Screw 7 Rubber sheet 8 Wing nut 9 Keyboard

Claims (2)

[Utility model registration claims] 1. A wrist rest in which one corner of a rectangular cube having a thickness equal to the height of a key is formed into an elliptic arc is formed symmetrically independently of each other, and the wrist rest is adjacent to a human wrist on the upper surface of the wrist rest. A wrist rest for a PC keyboard, which is formed by forming a concave curved surface that matches the shape of the palm of your hand. 2. A slit is provided horizontally along the long side wall of each wrist rest, and a connecting link having a long slot on the center line is housed in this slit and one end of this link is vertically penetrated. The wrist rest for a personal computer keyboard according to claim 1 of the scope of claim for utility model registration, wherein the wrist rest is attached by a screw.