Balancing structure for long key of keyboard

Abstract

A balancing structure for a long key of a keyboard includes a balancing rod and a pair of clamping hooks arranged on a bottom plate of the keyboard. The balancing rod includes a cross rod matched with a keycap of the key and two sliding rods extending from two end parts of the cross rod and matched with the pair of clamping hooks respectively. During the keycap pressing or spring-back process, each of the two sliding rods slides on a clamping port edge on at least one side of the corresponding clamping hook along with the rotation of the cross rod, and the moving trajectory of the contact point of each sliding rod and the corresponding port edge is an arc in the sliding process.

Claims

1. A balancing structure for a long key of a keyboard, comprising a balancing rod and a pair of clamping hooks on a bottom plate of the keyboard; wherein the balancing rod comprises a cross rod matched with a keycap of the key and two sliding rods extending from two end parts of the cross rod and matched with the pair of clamping hooks respectively, and during the keycap pressing or spring-back process, each of the two sliding rods slides on a clamping port edge on at least one side of a corresponding clamping hook along with a rotation of the cross rod, and a moving trajectory of a contact point of each sliding rod and a corresponding clamping port edge is an arc in a sliding process; wherein each sliding rod slides on the clamping port edge on one side of the corresponding clamping hook, and in the sliding process, each sliding rod is at least contacted with two points of the clamping port edge on the one side at the same time by a matching part between the clamping hook and the respective sliding rod, and the respective sliding rod is seamlessly matched with the corresponding clamping port edge by the matching part; wherein the matching part between the clamping port edge and the corresponding sliding rod is an arc or a convex broken line; and wherein the two clamping hooks and the two sliding rods respectively form two symmetrical matched parts, a protruding direction of the two matched parts are opposite, and a distance between the matched parts with the sliding rods on the two clamping hooks is larger than or equal to the distance between the matched parts with the clamping hooks on the two sliding rods.

2. The balancing structure for a long key of a keyboard according to claim 1, wherein each sliding rod slides on the clamping port edge at two sides of the corresponding clamping hook, and in the sliding process, at least one point on the clamping port edge at the two sides is respectively contacted with the respective sliding rod by a matching part between the clamping hook and the respective sliding rod, and the respective sliding rod is seamlessly matched with the corresponding clamping port edge by the matching part.

3. A balancing structure for a long key of a keyboard, comprising a balancing rod and a pair of clamping hooks on a bottom plate of the keyboard; wherein the balancing rod comprises a cross rod matched with a keycap of the key and two sliding rods extending from two end parts of the cross rod and matched with the pair of clamping hooks respectively, and during the keycap pressing or spring-back process, each of the two sliding rods slides on a clamping port edge on at least one side of a corresponding clamping hook along with a rotation of the cross rod, and a moving trajectory of a contact point of each sliding rod and a corresponding clamping port edge is an arc in a sliding process; wherein each sliding rod slides on the clamping port edge on one side of the corresponding clamping hook, and in the sliding process, each sliding rod is at least contacted with two points of the clamping port edge on the one side at the same time by a matching part between the clamping hook and the respective sliding rod, and the respective sliding rod is seamlessly matched with the corresponding clamping port edge by the matching part; wherein the matching part between the clamping port edge and the corresponding sliding rod is an arc or a convex broken line; wherein the two clamping hooks and the two sliding rods respectively form two symmetrical matched parts, a protruding direction of the two matched parts are opposite, and a distance between the matched parts with the sliding rods on the two clamping hooks is smaller than or equal to the distance between the matched parts with the clamping hooks on the two sliding rods.

4. The balancing structure for a long key of a keyboard according to claim 3, wherein each sliding rod slides on the clamping port edge at two sides of the corresponding clamping hook, and in the sliding process, at least one point on the clamping port edge at the two sides is respectively contacted with the respective sliding rod by a matching part between the clamping hook and the respective sliding rod, and the respective sliding rod is seamlessly matched with the corresponding clamping port edge by the matching part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram illustrating a matching structure of a balancing rod and a bottom plate in a long key of a keyboard in the prior art;

(2) FIG. 2 is a schematic diagram illustrating a balancing structure for a long key of a keyboard according to the present application;

(3) FIG. 3a is a first seamless matching mode between a sliding rod and a clamping port edge in the present application;

(4) FIG. 3b is a second seamless matching mode between the sliding rod and the clamping port edge in the present application;

(5) FIG. 4a is a schematic diagram illustrating a clamping hook at a left side in embodiment 1;

(6) FIG. 4b is a schematic diagram illustrating a matching structure of the sliding rod and the clamping hook at the left side in embodiment 1;

(7) FIG. 4c is a schematic diagram illustrating a deformation structure of the clamping hook in embodiment 1;

(8) FIG. 4d is a schematic diagram illustrating a matching structure of the clamping hook and the sliding rod in FIG. 4c;

(9) FIG. 5a is a schematic diagram illustrating a balancing structure for a long key of a keyboard in embodiment 2;

(10) FIG. 5b is a schematic diagram illustrating a clamping hook at a left side in embodiment 2;

(11) FIG. 5c is a schematic diagram illustrating a matching structure of a sliding rod and the clamping hook at the left side in embodiment 2;

(12) FIG. 6a is a schematic diagram illustrating a sectional structure of the matched part of a sliding rod and a clamping hook at a left side in embodiment 3;

(13) FIG. 6b is a front view of a deformation structure of the clamping hook in embodiment 3;

(14) FIG. 7a is a schematic diagram illustrating a sectional structure of the matched part of a sliding rod and a clamping hook at a left side in embodiment 4;

(15) FIG. 7b is a front view of a deformation structure of the clamping hook in embodiment 4;

(16) FIG. 8a is a schematic diagram illustrating a clamping hook at a left side in embodiment 5; and

(17) FIG. 8b is a schematic diagram illustrating a matching structure of a sliding rod and the clamping hook at the left side in embodiment 5.

DETAILED DESCRIPTIONS

(18) The technical solution of the present invention will be further described hereinafter with reference to the drawings.

(19) As illustrated in FIG. 2, a balancing structure for a long key of a keyboard comprises a balancing rod and a pair of clamping hooks 1 on a bottom plate 100 of the keyboard, wherein the balancing rod comprises a cross rod 2 and two sliding rods 3 extending from two end parts of the cross rod 2, and the two sliding rods 3 are symmetrically arranged. The cross rod 2 is used for being matched with a keycap of the key, the two sliding rods 3 are matched with the pair of clamping hooks 1 respectively. When any position on the keycap is pressed, the keycap drives the balancing rod to generate linkage to finish inputting.

(20) The clamping hook 1 has a clamping hook groove which comprises a groove channel and clamping port edges 11 at two sides of the groove channel. The two sliding rods 3 are contacted and matched with the clamping port edges 11 of the corresponding clamping hooks 1; and during the keycap pressing or spring-back process, the cross rod 2 rotates to drive the two sliding rods 3 to slide on the clamping port edge 11 on one side of the corresponding clamping hook 1, and the moving trajectory of the contact point of each sliding rod 3 and the corresponding port edge 11 is an arc in the sliding process.

(21) The matching mode of the sliding rod 3 and the clamping port edge 11 may include two types.

(22) According to the first mode, the sliding rod 3 slides on the clamping port edge 11 on one side of the corresponding clamping hook 1, and in the sliding process, the sliding rod 3 is at least contacted with two points of the clamping port edge 11 at the side at the same time, and the sliding rod 3 is seamlessly matched with the corresponding clamping port edge 11, as illustrated in embodiments 1 to 4.

(23) According to the second mode, the sliding rod 3 slides at the two clamping port edges of the corresponding clamping hook at the same time, and in the sliding process, at least one point at the two clamping port edges 11 is contacted with the sliding rod 3, and the sliding rod 3 is seamlessly matched with the corresponding clamping port edge 11, as illustrated in embodiment 5.

Embodiment 1

(24) As illustrated in FIG. 2 and FIGS. 4a to 4b, the two clamping hooks 1 are of an open style, the clamping port edge corresponding to the clamping hook at the left side is in an opposite C-shape, the clamping port edge corresponding to the clamping hook at the right side is in a C-shape, and the left and right sliding rods 3 are matched with the clamping port edges 11 at one side of the left and right clamping hooks 1 respectively.

(25) As illustrated in FIG. 3a, the distance between the matched parts a and a with the sliding rod 3 on the two clamping hooks 1 is A, the distance between the matched parts b and b with the clamping hook 1 on the two sliding rods 3 is B, and A is larger than or equal to B, so that the two clamping hooks 1 are seamlessly matched with the sliding rods 3. When A is larger than B, interference fit is formed between the two sliding rods 3 and the corresponding clamping hooks 1; and when A is equal to B, zero-gap fit is formed between the two sliding rods 3 and the corresponding clamping hooks 1.

(26) Because the two clamping hooks 1 and the two sliding rods 3 are all symmetrically arranged with each other, the matching modes of the left and right sliding rods 3 with the corresponding clamping hooks 1 are the same when the sliding rods 3 are sliding. To facilitate understanding, the matching mode of the left sliding rod and the left clamping hook in the keycap pressing press is illustrated as an example.

(27) Under an initial state, due to the seamless matching between the sliding rod 3 and the clamping hook 1, the arc surface of the sliding rod 3 clamps the C-shaped clamping port edge 11 on one side of the clamping hook 3 close to the cross rod 2 under the pressure of the clamping hook 1, and line contact is formed between the two, which comprises a plurality of contact points; when the keycap is pressed, the cross rod 2 of the balancing rod rotates, the sliding rod 3 is forced to slides on the clamping port edge 11 on the side, and meanwhile, the sliding rod 3 clamps the clamping port edge 11 to keep line contact with the clamping port edge 11; when the keycap springs back, since the sliding rod 3 has elasticity and tension, the sliding rod 3 continuously clamps the clamping port edge 11 during the spring-back motion, and keeps line contract with the clamping port edge 11; that is, the sliding rod 3 always keeps a bound state during sliding, and the C-shaped or opposite C-shaped clamping port edges provide an arc moving orbit for the sliding of the sliding rod 3, so that the moving trajectory of any point on the sliding rod 3 contacted with the clamping port edge 11 is an arc in the sliding process, and the sliding rod 3 moves along the arc on the clamping port edge 11, which has a certain buffer effect, thus impact on the clamping hooks 1 cannot be caused and abnormal sounds cannot be produced.

(28) Excluding the C-shape, the clamping hook 1 in FIGS. 4a and 4b may further have multiple deformation structures. FIGS. 4c to 4d namely illustrate a deformation form of the clamping hook in the embodiment. In the Figs. the clamping port edge 11 is in an n-shape, and the matched part with the sliding rod 3 is an arc part on the clamping port edge 11; in addition, the clamping hook 1 in the embodiment may further have multiple deformations as long as the arc part which can be matched with the sliding rod 3 exists on the clamping port edge 11 of the clamping hook 1.

Embodiment 2

(29) As illustrated in FIGS. 5a to 5b, the shape of the clamping hook in the embodiment is the same as that in embodiment 1, but the seamless matching mode between the clamping hook 1 and the sliding rod 3 is not the same as that in embodiment 1. In the embodiment, the corresponding clamping port edge of the clamping hook at the left side is in a C-shape, the corresponding clamping port edge of the left clamping hook is in an opposite C-shape. FIGS. 5a to 5b illustrate the matching mode between the sliding rod at the left side and the clamping hook at the left side.

(30) As illustrated in FIG. 3b, the distance between the matched parts a and a with the sliding rod 3 on the two clamping hooks 1 is A, the distance between the matched parts b and b with the clamping hook 1 on the two sliding rods 3 is B, and A is smaller than or equal to B, so that the two clamping hooks 1 are seamlessly matched with the sliding rod 3; when A is smaller than B, interference fit is formed between the two sliding rods 3 and the corresponding clamping hook 1; and when A is equal to B, zero-gap fit is formed between the two sliding rods 3 and the corresponding clamping hook 1.

(31) Similar to the principles in embodiment 1, when the keycap moves up and down, the sliding rod 3 always keeps a bound state, and always moves along the arc path on the clamping port edge 11, which has a certain buffer effect, thus impact on the clamping hooks 1 cannot be caused and abnormal sounds cannot be produced.

(32) In a similar way, the shape of the clamping hook 1 in FIGS. 5a to 5b may also have multiple deformation forms as long as the arc part which can be matched with the sliding rod 3 exists on the clamping port edge 11 of the clamping hook 1.

Embodiment 3

(33) As illustrated in FIG. 6a, the two clamping hooks 1 are of an open style, the clamping port edge 11 is of a convex broken line shape, the protruding directions of the clamping port edges of the left and right clamping hooks are opposite, and the two sliding rods 3 are seamlessly matched with the corresponding clamping hook 1, so that the sliding rod 3 always keeps a bound state under the pressure of the clamping hook 1 or the elastic tension effect of the sliding rod, and the seamless matching mode is the same as that in embodiment 1.

(34) The two sliding rods 3 slide on the clamping port edges 11 on one side of the two clamping hooks 1 respectively. Take the matched part between the sliding rod at the left side and the clamping hook at the left side for example: under the initial state, the sliding rod 3 and the clamping port edge 11 form two contact points c and d, when the keycap is pressed, the sliding rod 3 slides and the two contact points c and d move along with the sliding rod. In the sliding process of the sliding rod, the two contact points c and d move in the convex broken line area of the clamping port edge 11, and the moving trajectory of the contact points is an arc. That is, the sliding rod 3 moves along the arc on the clamping port edge 11, which has a certain buffer effect, thus impact on the clamping hooks 1 cannot be caused and abnormal sounds cannot be produced.

(35) Similarly, the shape of the clamping hook 1 in FIG. 6a may also have multiple deformations as long as convex broken line part matched with the sliding rod 3 exists on the clamping port edge 11, which is as illustrated in FIG. 6b.

Embodiment 4

(36) As illustrated in FIG. 7a, the shapes of the two clamping hooks 1 are similar to that in embodiment 3, both of which are convex broken line, while the difference lies in that the protruding directions of the clamping port edges of the left and right clamping hooks are opposite, and the seamless matching mode thereof is the same as that in embodiment 2.

(37) FIG. 7b illustrates a deformation structure of the clamping hook in the embodiment, the clamping port edge of the clamping hook is a hexagon, and both the convex broken line parts at the left and right sides of the clamping port edge may be matched with the sliding rod 3.

Embodiment 5

(38) As illustrated in FIGS. 8a to 8b, both the clamping port edges 11 of the two clamping hooks 11 are closed circles, and the sliding rods 3 are contacted with one point on the clamping port edges 11 at the two sides of the corresponding clamping hook 1 respectively at the same time. FIG. 8b is a diagram illustrating a matching mode of the clamping hook at the left side and the sliding rod, and the seamless matching mode of the clamping hook 1 and the sliding rod 3 in the embodiment is the same as that in embodiment 1.

(39) When the keycap moves up and down, the sliding rod 3 slides on the clamping port edges 11 at the two sides; in the sliding process, the sliding rod 3 always has a contract point with the clamping port edges 11 at the two sides respectively, the sliding rod 3 always keeps a bound state, and the circular clamping port edges at the two sides provide an arc moving orbit for the sliding rod 3 to slide. That is, the moving trajectory of the contract point with the clamping port edges 11 on the sliding rod 3 is an arc, and the sliding rod 3 moves along the arc on the clamping port edges 11, which has a certain buffer effect, thus impact on the clamping hooks 1 cannot be caused and abnormal sounds cannot be produced.