CN102043478B - Key input device - Google Patents

Abstract

The present invention relates to a key input device, comprising an upper shell, a base, a key and a circuit board with a key touch switch, the circuit board is arranged in a shell surrounded by the upper shell, the base and the key, the key input device also comprises a first support plate and a second support plate arranged between the pressing portion of the key and the convex point of the key touch switch, and the first support plate is located below the second support plate, one end of the first support plate and the second support plate respectively forms a first rotation fulcrum and a second rotation fulcrum, and the first rotation fulcrum end is opposite to the second rotation fulcrum end, a pressing point corresponding to the convex point is arranged below the first support plate, a pressing point for pressing and contacting the first support plate is arranged below the second support plate, and the second support plate can move relative to the base to change the distance between the pressing point and the pressing portion of the key and the pressing point. The key input device of the present invention has the advantage of being able to adjust the key pressing force to a large extent.

Description

key input device

technical field

The present invention relates to an electronic input device, in particular to a key input device, such as a mouse.

Background technique

The button on the existing button input device (such as mouse etc.) generally only has the function of single downward force, as shown in Figure 1, a kind of existing button input device 10 is a mouse, and it comprises base 101, upper case 102 , key 103, key touch switch 104 and circuit board 105, key touch switch 104 is connected with circuit board 105, wherein, when key 103 is subjected to downward pressure, key contact 106 below key 103 and the bump on the surface of key touch switch 104 107 is directly pressed and contacted, thereby generating a corresponding button click operation. Since the pressing force of the button 103 to complete the pressing operation is single, it is easy for the user to cause hand fatigue in the case of rapid clicking and long-term use, thus failing to meet people's increasingly higher requirements for the comfort of button input devices such as a mouse. .

Contents of the invention

The main technical problem to be solved by the present invention is to provide a key input device capable of adjusting the pressing force of the key to a large extent in view of the above-mentioned deficiencies in the prior art.

The technical solution adopted by the present invention to solve the technical problem is to provide a key input device, which includes an upper case, a base, a key and a circuit board with a key touch switch. In the casing of the key input device, the key input device also includes a first support plate and a second support plate arranged between the pressing portion of the key and the bump of the key touch switch, and the first support plate is located on the second support plate Below, one end of the first support plate and the second support plate are respectively formed with a first rotation fulcrum and a second rotation fulcrum, and the position of the first rotation fulcrum is opposite to the position of the second rotation fulcrum, the second The supporting board can move relative to the base to change the pressing force of the pressing part pressing the first supporting board.

A pressing point corresponding to the convex point is provided under the first support plate, and a pressing point for pressing contact with the first support plate is provided under the second support plate, and when the second support plate moves, it is The distance between the pressing point, the pressing part of the button and the pressing point is changed.

The key input device also includes an adjustment piece, the second support plate is pivotally connected with the adjustment piece to form the second pivot point, the adjustment piece also includes a sliding part, and a guide penetrating through the upper and lower surfaces of the bottom plate is provided on the bottom plate of the base. The guide groove accommodates the sliding part and allows the sliding part to slide therein so as to drive the second support plate to move relative to the base.

The adjusting member is an L-shaped seat structure, including a bottom plate and a connecting seat located on one side of the bottom plate. The connecting seat has two connecting pieces, and a pivot pivotally connected with the second support plate is fixed between the two connecting pieces.

The sliding part is formed by extending from the bottom of the bottom plate.

A toggle protrusion is formed at the bottom of the sliding part.

The sliding part can be positioned in multiple stages in the guide groove.

When the sliding part is located at one end of the guide groove, the pressing part of the button, the pressing point of the second support plate, the pressing point of the first support plate and the convex point of the key touch switch are located on the same line; When the end moves to the other end of the guide groove, the distance between the pressing point of the second support plate, the pressing portion of the button and the pressing point of the first support plate increases gradually.

The sliding part can be positioned anywhere in the guide groove.

The key input device is a mouse.

The second support plate moves left and right relative to the base.

The second supporting board moves back and forth relative to the base.

The pressing part of the button is rod-shaped.

The button input device of the present invention achieves the effect of two-stage adjustment of the button pressing force by setting the first support plate and the second support plate. Compared with the prior art, the button pressing force of the key input device can be adjusted to a large extent. Therefore, The user's comfort level can be improved, and the hand fatigue caused by the single pressing force of the button in the prior art is greatly relieved.

Description of drawings

FIG. 1 is a schematic structural view of an existing key input device;

FIG. 2 is an exploded schematic diagram of a partial structure of a preferred embodiment of the key input device of the present invention;

Fig. 3 is a side structural schematic diagram of a preferred embodiment of the key input device of the present invention when the adjusting member is in the first position;

Figure 4 is a schematic bottom view of Figure 3;

Fig. 5 is a side structural schematic diagram of a preferred embodiment of the key input device of the present invention when the adjusting member is in the second position;

FIG. 6 is a schematic side view of the preferred embodiment of the key input device of the present invention when the adjustment member is in the third position.

Detailed ways

The key input device of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 2 to FIG. 4 in combination. FIG. 2 is an exploded schematic diagram of a partial structure of a preferred embodiment of the key input device of the present invention, and FIG. 3 is a view of a preferred embodiment of the key input device of the present invention when the adjustment member is in the first position. Schematic diagram of the side view structure; FIG. 4 is a schematic diagram of the bottom view of FIG. 3. In this preferred embodiment, the key input device 100 is a mouse, including an upper shell 20, a base 30, a key 40, a first support plate 50, and a key touch switch 60 The circuit board 70 , the adjustment member 80 and the second support plate 90 . Wherein, the first supporting board 50 , the circuit board 70 and the adjusting member 80 are disposed in a housing formed by the upper case 20 , the base 30 and the button 40 .

The first support plate 50 is arranged between the second support plate 90 and the key touch switch 60, and one end (front end) of the first support plate 50 is a pivot end, which is pivotally connected to other parts (not shown) fixed to the base 30 through the pivot shaft 51 , thereby forming a first pivot point 52 at this end. There is a pressing point 53 under the first support plate 50 close to the pivot end, which is used to press and contact the bump 62 of the pressing touch switch 60 under the pressing action of an external force, so that the key touch switch 60 is turned on and passes through the circuit board 70 A corresponding click signal is sent to the computer system (not shown). The circuit board 70 is relatively fixed to the base 30 .

The adjustment member 80 is an L-shaped seat structure, including a bottom plate 81 and a connecting seat 82 located on one side of the bottom plate 81 . The connecting base 82 has two connecting pieces 822 , and a pivot 824 pivotally connected to the second support plate 90 is fixed between the two connecting pieces 822 .

The second support plate 90 is a plate structure, one end of which is pivotally connected to the pivot 824 to form a second pivot point 92 , and the other end has a pressing point 94 at the bottom near the connection of the two side plates. The second support plate 90 is disposed between the rod-shaped pressing portion 42 below the button 40 and the first support plate 50 , and contacts the first support plate 50 through the pressing point 94 .

The bottom of the base plate 81 also extends with a sliding portion 88. The base plate of the base 30 is provided with a guide groove 32 passing through the upper and lower surfaces of the base plate. Swipe back and forth and position. A toggle convex portion 882 is also formed at the bottom of the sliding portion 88, which is used to facilitate the user to toggle the toggle convex portion 882 through the guide groove 32 to adjust the position of the adjustment member 80, thereby adjusting the pressure point 94 of the second support plate 90 and The distance between the pressing portion 42 of the button 40 and the pressing point 53 of the first support plate 50 .

The working principle of the adjustable pressing force of the key 40 of the key input device of the present invention will be described below. Please refer to FIGS. 3 to 6 at the same time. When the user moves the sliding part 88 of the adjustment member 80 to the first position of the guide groove 32 of the base 30, that is, when the sliding part 88 is located at the front end of the guide groove 32 (as shown in FIG. 4 As shown), the pressing part 42 of the key 40, the pressing point 94 of the second support plate 90, the pressing point 53 of the first support plate 50 and the bump 62 of the key touch switch 60 are located on the same line. The pressure F1 can directly press the bump 62 to make the button touch switch 60 conduct; as shown in FIG. When the center of the guide groove 32 of the base 30, the distance between the pressing point 94 of the second support plate 90 and the pressing portion 42 of the button 40 and the pressing point 53 of the first support plate 50 increases. 50 and one end of the second support plate 90 are respectively formed with a first fulcrum 52 and a second fulcrum 92, and the first fulcrum end is opposite to the second fulcrum end. The pressure of the part 42 is less than the pressure of the pressing point 94 of the second support plate 90 on the first support plate 50, and the pressure of the pressing point 94 on the first support plate 50 is smaller than that of the pressing point 53 of the first support plate 50 on the key The pressure of the protruding point 62 of the touch switch 60, therefore, the pressure F2 required for pressing the key 40 to make the key touch switch 60 conduction is less than F1; Toggle to the third position of the guide groove 32, that is, when the sliding part 88 is located at the rear end of the guide groove 32 of the base 30, the pressing point 94 of the second support plate 90 and the pressing portion 42 of the button 40 and the first support plate 50 The distance of the pressing point 53 is further increased, and the pressure F3 required for pressing the button 40 to make the button touch switch 60 conduct is less than F2, that is to say, by adjusting the sliding part 88 from the front end of the guide groove 32 to the rear end, it can be The pressing force of the key 40 can be greatly adjusted.

The key input device 100 of the present invention achieves the effect of two-stage adjustment of the pressing force of the key 40 by setting the first support plate 50 and the second support plate 90. Compared with the prior art, the keys of the key input device 100 can be adjusted to a greater extent. 40 pressing force, therefore, can improve the user's comfort level, and greatly alleviate the hand fatigue caused by the single pressing force of the button in the prior art. When the pressing force needs to be adjusted, the user only needs to toggle the convex part 882 can be realized by changing the position of the sliding part 88 of the adjustment member 80 in the guide groove 32 of the base 30 .

It can be understood that the sliding portion 88 of the adjusting member 80 can be positioned linearly in addition to multi-stage positioning at the corresponding position of the guide groove 32. The adjustment accuracy of the pressing force is greater. In addition, the pressing portion 42 of the button 40 can be in contact with the second support plate 90 or be positioned with the second support plate 90 .

In addition, it can also be understood that the first support plate 50, the adjustment member 80 and the second support plate 90 can also be rotated 90 degrees around the axis vertical to the bottom surface, that is, the adjustment member 80 is moved left and right relative to the base 30, thereby adjusting the first support plate 80. The distance between the pressing point 94 of the second supporting board 90 and the pressing portion 42 of the button 40 and the pressing point 53 of the first supporting board 50 in the left and right directions.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in the present invention. within the scope of protection.

Claims (13)

1. press key input device; Comprise upper casing, base, button and have the circuit board of button touch switch; This circuit board is located in the housing that is surrounded by this upper casing, base and button; It is characterized in that: also comprise first support plate and second support plate between the salient point of the press section of being located at this button and this button touch switch; And this first support plate is positioned at the below of this second support plate, and a wherein end of this first support plate and this second support plate is formed with first rotating fulcrum and second rotating fulcrum respectively, and this first rotating fulcrum end is relative with this second rotating fulcrum end position; This second support plate can move relative to this base, pushes the pressing force of this first support plate to change this press section.

2. press key input device as claimed in claim 1; It is characterized in that: this first support plate below is provided with the press points corresponding with this salient point; This second support plate below is provided with and is used for and the compressing a little of this first support plate face contact; And when this second support plate moves, be to change this to compress a little and the press section of this button and the distance of this press points.

3. press key input device as claimed in claim 2; It is characterized in that: also comprise adjustment part; This second support plate and this adjustment part articulate to form this second rotating fulcrum, and this adjustment part also comprises sliding part, offer the guide groove that connects this base plate upper and lower surfaces on the base plate of this base; This guide groove holds this sliding part and supplies this sliding part in it, to slide, and moves relative to this base to drive this second support plate.

4. press key input device as claimed in claim 3; It is characterized in that: this adjustment part is L shaped base structure; Comprise base plate and be positioned at the Connection Block of base plate one side, Connection Block has two braces, is fixed with the pivot that articulates with this second support plate between this two brace.

5. press key input device as claimed in claim 4 is characterized in that: this sliding part is formed by this base extension.

6. press key input device as claimed in claim 3 is characterized in that: this sliding part bottom is formed with stirs protuberance.

7. press key input device as claimed in claim 3 is characterized in that: this sliding part can carry out the multistage location in this guide groove.

8. press key input device as claimed in claim 7 is characterized in that: when this sliding position during in this guide groove one end, the press points that compresses point, first support plate of the press section of this button, second support plate and the salient point of button touch switch are positioned on the same line; When this sliding part moved to this guide groove other end by this end, the distance that compresses a little with the press points of the press section of this button and first support plate of second support plate increased gradually.

9. press key input device as claimed in claim 3 is characterized in that: this sliding part can be located in this guide groove everywhere.

10. press key input device as claimed in claim 1 is characterized in that: this press key input device is a mouse.

11. press key input device as claimed in claim 1 is characterized in that: this second support plate is this base move left and right relatively.

12. press key input device as claimed in claim 1 is characterized in that: this second support plate this base relatively moves forward and backward.

13. press key input device as claimed in claim 1 is characterized in that: the press section of this button is shaft-like.

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