TWM461827U - Keyswitch structure for keyboard and its elastomer - Google Patents

Description

Key structure of keyboard and its elastic body

This creation is about a button structure, especially a keyboard key structure and its elastic body.

As computers become more and more popular, desktops or notebooks need to be equipped with a keyboard for users to input characters such as characters, symbols or numbers, making the keyboard an indispensable input device. .

The key structure of the traditional keyboard mainly includes a bottom plate, a key cap, a membrane switch and an elastic body. The membrane switch is fixed and exposed on the bottom plate, the elastic body is clamped between the key cap and the membrane switch, and the elastic body has a bowl. The bracket and the inner portion of the bowl bracket extend a trigger portion. Thereby, the key cap is pressed down to abut the actuation trigger portion and the membrane switch to achieve the function of the button.

However, after the button assembly is completed, the key cap is slightly pre-stressed to the elastic body, so that the top of the bowl-shaped bracket abuts the keycap and gives the keycap a frictional force to prevent the keycap from shaking. However, after the pre-pressing, the position of the bowl-shaped bracket is driven downward, which causes the Stroke distance between the trigger portion and the membrane switch to be shortened, causing the user to slightly press down and contact the membrane switch, and there is a problem of poor hand feeling. occur.

In view of this, the creator has made great efforts to solve the above problems by focusing on the above-mentioned prior art, and has devoted himself to the application of the theory, that is, the goal of the creator's improvement.

One of the purposes of the present invention is to provide a key structure of a keyboard and an elastic body thereof, which are extended by an elastic body and have a pre-pressing portion abutting against the key cap, so that the key cap slightly pre-stresses the elastic body, and the pre-pressing portion Replace the bowl-shaped bracket to give the keycap a frictional force and provide deformation, to avoid the deformation of the bowl-shaped bracket after the pre-pressing, and to move the trigger portion downward to maintain the strapping between the triggering portion and the membrane switch (Stroke) The distance is a preset value, so that the button structure has a good feel.

In order to achieve the above object, the present invention provides an elastomer for a keyboard, comprising: a bowl-shaped bracket comprising a top portion, the top portion being provided with at least one pre-pressing portion, and an obtuse angle formed between the pre-pressing portion and the top portion.

In order to achieve the above object, the present invention provides a key structure of a keyboard, comprising: a bottom plate; a key cap; a membrane switch fixed and exposed to the bottom plate; and the elastic body as described above, the elastic body is clamped thereto Between the keycap and the bottom plate, the The preloading portion abuts against the keycap.

This creation also has the following effects:

First, after the assembly of the button structure is completed, the key cap pre-presses the pre-pressing portion, so that the pre-pressing portion is more obliquely deformed under pressure, and the pre-pressing portion is resetted, and then the key cap is elastically applied in reverse to form A frictional force causes the keycap to be blocked by friction to prevent the keycap from swaying and improve the stability of the use of the button structure.

The second pre-pressing portion is symmetrically arranged on the top portion, and the end portion of the pre-pressing portion extends toward the vertical top direction with an abutting portion, and the abutting portion is symmetrically arranged with respect to the top portion and abuts against the key cap, so that the pre-pressing portion is given to the key cap. The friction force is also symmetrical force, so that the two sides of the key cap are evenly stressed, and the key cap can be prevented from shaking and the positioning ability of the key cap can be improved.

Thirdly, when the key cap is pre-stressed on the pre-pressing portion, the elastic body is easily stressed and deformed from the pre-pressing portion under the pressure of the elastic body, so as to prevent the deformation of the bowl-shaped bracket after the pre-pressing, and the position of the triggering portion is moved downward. The stroke distance between the trigger portion and the membrane switch is maintained as a preset value, thereby maintaining the use feeling of the button structure itself.

10‧‧‧Key structure

1‧‧‧floor

11‧‧‧Chute

13‧‧‧Film board

2‧‧‧Key Cap

3‧‧‧ Membrane switch

4‧‧‧ Elastomers

42‧‧‧ bowl bracket

43‧‧‧ top

44‧‧‧Pre-pressing department

441‧‧‧ Tapered ring block

442‧‧‧ sections

45‧‧‧Apartment

46‧‧‧Trigger

5‧‧‧Scissors

51‧‧‧First support rod

52‧‧‧second support rod

θ 1‧‧‧ obtuse angle

θ 2‧‧‧ angle

A‧‧‧ tapping distance

B‧‧‧first distance

c‧‧‧Second distance

D‧‧‧ third distance

The first figure is an exploded view of the key structure of the creation.

The second figure is a perspective view of the first embodiment of the present invention.

The third figure is a schematic cross-sectional view of the first embodiment of the present elastomer.

The fourth picture is a combination diagram of the key structure of the present creation.

The fifth picture is a schematic diagram of the state of use of the key structure of the present creation.

The sixth figure is a perspective view of a second embodiment of the present elastomer.

The seventh figure is a perspective view of a third embodiment of the present elastomer.

The eighth figure is a perspective view of a fourth embodiment of the present elastomer.

The ninth drawing is a schematic cross-sectional view of a fourth embodiment of the present elastomer.

The detailed description and technical content of the present invention will be described below in conjunction with the drawings, but the drawings are for illustrative purposes only and are not intended to limit the present invention.

Please refer to the first to fifth figures. The present invention provides a key structure of a keyboard and an elastic body thereof. The key structure 10 mainly includes a bottom plate 1, a keycap 2, a membrane switch 3 and an elastic body 4.

The bottom plate 1 is provided with a connecting mechanism 11, and the connecting mechanism 11 can be two chutes formed on the bottom plate 1 and spaced apart.

The keycap 2 is disposed above the bottom plate 1, and the keycap 2 is substantially a rectangular cap, but is not limited thereto.

The thin film circuit board 13 includes at least one membrane switch 3, further illustrated as follows. As shown in the first figure, in the present embodiment, the thin film circuit board 13 can be disposed above the bottom plate 1, and the thin film circuit board 13 defines a plurality of openings for connection. The mechanism 11 exposes the thin film circuit board 13. In addition, the thin film circuit board 13 can also be disposed under the bottom plate 1. The bottom plate 1 needs to be provided with an opening for the thin film switch 3 to expose the bottom plate 1. The configuration of the thin film circuit board 13 can be adjusted according to actual needs.

The elastic body 4 is sandwiched between the keycap 2 and the film circuit board 13, and the elastic body 4 includes a The bowl-shaped bracket 42 is disposed on the surface of the film circuit 13 at the bottom of the bowl-shaped bracket 42. The top portion 43 of the bowl-shaped bracket 42 extends with at least one pre-pressing portion 44. The pre-pressing portions 44 are symmetrically arranged on the top portion 43 and abut against the bottom of the keycap 2.

Moreover, the inside of the bowl-shaped bracket 42 extends with a triggering portion 46. The keycap 2 is pressed down to actuate the triggering portion 46 and the membrane switch 3 to abut each other, thereby generating a corresponding button signal.

Furthermore, the key cap 2 is engaged with the bottom plate 1 in the following manner. In the embodiment, as shown in the first figure, the present button structure 3 further includes a scissors holder 5, and the scissors holder 5 includes a first cross-pivoting a support rod 51 and a second support rod 52. One end of the first support rod 51 is pivotally connected to the keycap 2, and the other end is slidably pivotally connected to the connecting mechanism 11. One end of the second support rod 52 is pivotally connected to the keycap 2 The other end is slidably pivotally connected to the connecting mechanism 11.

In addition, as shown in the second figure, the first embodiment of the present elastomer 4 is formed, wherein the pre-pressing portion 44 is formed to extend from the periphery of the top portion 43, but the position at which the pre-pressing portion 44 is formed can be adjusted according to actual conditions. This embodiment is not limited.

The number of the pre-pressing portions 44 of the present example is one, and the pre-pressing portion 44 includes a tapered ring block 441 which gradually enlarges the peripheral edge outward, and abuts from the end of the tapered ring block 441 toward the vertical top portion 43. The abutting portion 45 is symmetrically arranged on the tapered ring block 441, that is, the abutting portion 45 is symmetrically arranged with respect to the top portion 43 and abuts against the key cap 2; as described in detail below, the abutting portion 45 is symmetrically arranged on the tapered ring block. An annular bump of 441.

And, as shown in the third to fourth figures, the pre-pressing portion 44 abuts against the keycap 2 and the top An obtuse angle θ 1 is formed between 43, and the angle of the obtuse angle θ 1 is between 90° and 180°; further, an angle θ 2 is formed between the pre-pressing portion 44 and the sidewall of the bowl-shaped bracket 42 at an angle θ 2 The angle is between 90° and 70°, and the above angle can be adjusted according to actual needs.

Moreover, a stroke distance a is formed between the trigger portion 46 and the membrane switch 3, and a first distance b, a top portion 43 and a bowl shape are formed between the highest point of the abutting portion 45 and the lowest point of the bowl-shaped bracket 42. A second distance c is formed between the lowest points of the bracket 42.

Finally, after the assembly of the present button structure 10 is completed, a third distance d is formed between the keycap 2 and the bottom plate 1, and the third distance d is smaller than the first distance b and greater than the second distance c.

The combination of the present button structure 10 is as shown in the fourth figure, wherein the membrane switch 3 is fixed and exposed to the bottom plate 1; the elastic body 4 is sandwiched between the keycap 2 and the membrane circuit board 13, and the elastic body 4 is clamped Between the keycap 2 and the bottom plate 1, the elastic body 4 has a bowl-shaped bracket 42. The bowl-shaped bracket 42 includes a top portion 43 and is provided with at least one pre-pressing portion 44. The pre-pressing portion 44 and the top portion 43 are formed with The obtuse angle θ1, the pre-compression portion 44 abuts against the keycap 2, and a stroke distance a is formed between the trigger portion 46 and the membrane switch 3. Thereby, the elastic body 4 extends with the pre-pressing portion 44 abutting against the keycap 2, and when the keycap 2 slightly pre-stresses the elastic body 4, the pre-pressing portion 44 replaces the bowl-shaped bracket 42 to give the keycap 2 Friction and deformation are provided to prevent the bowl-shaped bracket 42 from being deformed by force after the pre-pressing to move the trigger portion 46 downward to maintain the Stroke distance a between the trigger portion 46 and the membrane switch 3 as a preset value. In turn, the button structure 10 has a good hand feel.

The state of use of the present button structure 10 is as shown in the third to fifth figures. First, after the assembly of the button structure 10 is completed, the key cap 2 pre-compresses the pre-pressing portion 44, so that the pre-pressing portion 44 is subjected to pressure. The inclination deformation, that is, the angle of the obtuse angle θ 1 becomes large, and the pre-pressing portion 44 performs the resetting, thereby giving the keycap 2 an elastic force in reverse to form a frictional force, and the keycap 2 is blocked by the friction force to prevent the keycap 2 The shaking occurs to improve the stability of the use of the button structure 10.

In addition, the pre-pressing portions 44 are symmetrically arranged on the top portion 43, and the end portions of the pre-pressing portions 44 extend toward the vertical top portion 43 with an abutting portion 45. The abutting portion 45 is symmetrically arranged with respect to the top portion 43 and abuts against the keycap 2, so that The frictional force given to the keycap 2 by the pre-pressing portion 44 is also a symmetrical force, so that the two sides of the keycap 2 are evenly stressed, and the keycap 2 can be prevented from shaking and the positioning ability of the keycap 2 can be improved.

Furthermore, as shown in the third figure, before the pre-compression, a first distance b is formed between the highest point of the abutment portion 45 and the lowest point of the bowl-shaped bracket 42, and the top portion 43 and the lowest point of the bowl-shaped bracket 42 are formed. a second distance c; and as shown in the fourth figure, a third distance d is formed between the keycap 2 and the bottom plate 1. When the keycap 2 slightly pre-compresses the pre-pressing portion 44, the third distance d is smaller than the first The distance b is greater than the second distance c, and the pre-pressing portion 44 and the top portion 43 are disposed in an inclined manner, so that the elastic body 4 is deformed from the pre-pressing portion 44 under pressure, that is, the obtuse angle θ 1 becomes a variable obtuse angle. Thereby, the angle is increased, and the pre-pressing portion 44 is more obliquely deformed, so that the elastic body 4 abuts against the front and rear of the keycap 2, and the second distance c between the top portion 43 and the lowest point of the bowl-shaped bracket 41 is substantially equal (substantially unchanged) ), after the pre-pressing, the bowl-shaped bracket 42 is deformed by force to move the trigger portion 46 downward, and the stroke distance between the trigger portion 46 and the membrane switch 3 is maintained while preventing the key cap 2 from shaking. a is the default value In turn, the use of the button structure 10 itself is maintained.

Finally, when the keycap 2 is pressed by the user, the third distance d between the keycap 2 and the bottom plate 1 is smaller than the second distance c between the top surface 43 and the lowest point of the bowl-shaped bracket 42, resulting in elastic deformation of the bowl-shaped bracket 42. The actuation switch 46 triggers the membrane switch 3 to generate a corresponding button signal.

Referring to the sixth to seventh embodiments, the second to third embodiments of the present elastic body 4 are described, wherein the pre-pressing portion 44 is formed to extend from the periphery of the top portion 43, but the pre-pressing portion 44 can also be formed from the top portion 43. It can be adjusted according to the actual situation, and is not limited by this embodiment.

The number of the pre-pressing portions 44 of the present example is one, and the pre-pressing portion 44 is a tapered ring block 441 which is gradually enlarged to the outer peripheral dimension. The end portion of the tapered ring block 441 extends in the direction of the vertical top portion 43 with a plurality of abutting portions 45. Each of the abutting portions 45 is symmetrically arranged on the tapered ring block 441 , that is, each abutting portion 45 is symmetrically arranged with respect to the top portion 43 and abuts against the key cap 2 . Thereby, the same functions and effects as described above are achieved.

Referring to the eighth to ninth drawings, a fourth embodiment of the present elastic body 4 is described, in which the pre-pressing portion 44 is extended from the periphery of the top portion 43, but the pre-pressing portion 44 can also be formed from the top portion 43 to be visible. The actual situation is adjusted and is not limited by this embodiment.

The number of the pre-pressing portions 44 of the present embodiment is plural, and each of the pre-pressing portions 44 is a plate 442 which is disposed obliquely outward, and the plates 442 are symmetrically arranged on the top portion 43; in addition, each of the plates 442 of the present example is curved. Plate, but not limited to this.

Moreover, an end portion of each of the plates 442 extends toward the vertical top portion 43 with an abutting portion 45 Each of the abutting portions 45 is symmetrically arranged with respect to the top portion 43 and abuts against the keycap 2 . Thereby, the same functions and effects as described above are achieved.

In summary, the keyboard structure and the elastic body of the keyboard of the creation can achieve the intended purpose of use, and solve the lack of conventional knowledge, and have industrial utilization, novelty and progress, and fully comply with the requirements of the new patent application. To file an application in accordance with the Patent Law, please check and grant the patent in this case to protect the rights of the creator.

4‧‧‧ Elastomers

441‧‧‧ Tapered ring block

42‧‧‧ bowl bracket

43‧‧‧ top

44‧‧‧Pre-pressing department

45‧‧‧Apartment

46‧‧‧Trigger

θ 1‧‧‧ obtuse angle

θ 2‧‧‧ angle

B‧‧‧first distance

c‧‧‧Second distance

Claims (14)

An elastomer for a keyboard, comprising: a bowl-shaped bracket, comprising a top portion, the top portion being provided with at least one pre-pressing portion, and an obtuse angle formed between the pre-pressing portion and the top portion. The elastomer of the keyboard of claim 1, wherein the preloading portion is symmetrically arranged on the top. The elastic body of the keyboard according to claim 2, wherein the number of the pre-pressing portions is one, and the pre-pressing portion is a tapered ring block which gradually enlarges the peripheral size outward. The elastic body of the keyboard according to claim 2, wherein the number of the pre-pressing portions is plural, and each of the pre-pressing portions is a plate which is disposed obliquely outward. The elastic body of the keyboard of claim 1, wherein the end portion of the pre-pressing portion has at least one abutting portion extending perpendicularly to the top direction, and the abutting portion is symmetrically arranged with respect to the top portion. The elastomer of the keyboard of claim 1, wherein the pre-pressing portion is formed to extend from a periphery of the top. The elastic body of the keyboard of claim 1, wherein an angle is formed between the pre-pressing portion and the side wall of the bowl-shaped bracket, the angle of the angle being between 90° and 70°. The elastomer of the keyboard of claim 1, wherein the pre-pressing portion is integrally formed from the top. The elastic body of the keyboard of claim 1, wherein a trigger portion is disposed inside the bowl-shaped bracket. A key structure of a keyboard, comprising: a bottom plate; a key cap; a membrane switch fixed and exposed to the bottom plate; and an elastic body according to any one of claims 1 to 9, wherein the elastic body is clamped to the key cap And between the bottom plates, the pre-pressing portion abuts against the key cap. The key structure of the keyboard of claim 10, wherein the keycap is coupled to the bottom plate and is vertically movable relative to the bottom plate. The keyboard structure of the keyboard of claim 10, further comprising a scissor support, the scissor support comprising a first support bar and a second support bar that are pivotally connected, the bottom plate corresponding to the scissors support a connecting mechanism, one end of the first supporting rod is pivotally connected to the keycap, and the other end is slidably pivotally connected to the connecting mechanism, one end of the second supporting rod is pivotally connected to the keycap, and the other end is slidably pivoted For the connection mechanism. The key structure of the keyboard of claim 10, wherein the obtuse angle is a variable obtuse angle after the elastic body abuts the key cap. The key structure of the keyboard of claim 10, wherein the elastic body abuts the front and rear of the keycap, and the distance between the top and the lowest point of the bowl-shaped bracket is substantially equal.