CN108664137B

CN108664137B - Keyboard structure

Info

Publication number: CN108664137B
Application number: CN201810480093.0A
Authority: CN
Inventors: 洪赞尧
Original assignee: Benq Dentsu Co ltd; Mingji Intelligent Technology Shanghai Co ltd
Current assignee: Benq Dentsu Co ltd; Mingji Intelligent Technology Shanghai Co ltd
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2021-06-25
Anticipated expiration: 2038-05-18
Also published as: CN108664137A

Abstract

The invention provides a keyboard structure, which comprises a keyboard module, a base and a height adjusting mechanism. The base is pivoted to the keyboard module. The height adjusting mechanism comprises a rotating part, a first supporting rod, a second supporting rod, a first connecting rod and a second connecting rod. The rotating piece is rotatably arranged on the base. The first supporting rod is pivoted to the base and supported at the bottom of the keyboard module. The second support rod is pivoted to the base and supported at the bottom of the keyboard module. The first connecting rod is pivotally connected with the first supporting rod and the rotating part. The second connecting rod is pivoted with the first supporting rod and the rotating part. Along with the rotation of the rotating member, the first supporting rod and the second supporting rod are lifted or lowered.

Description

Keyboard structure

Technical Field

The present invention relates to a keyboard structure, and more particularly, to an angle-adjustable keyboard structure.

Background

When the keyboard structure is operated, the key surface is slightly inclined towards an operator in a more ergonomic operation state. Therefore, the conventional keyboard structure usually includes two pins pivotally connected to the bottom surface of the keyboard base, so as to raise the rear end of the entire keyboard structure. However, the height-increasing method cannot meet the requirement of modern people on keyboard operation.

Disclosure of Invention

The present invention is directed to a keyboard structure, which can solve the above-mentioned problems.

According to an embodiment of the present invention, a keyboard structure is provided. The keyboard structure comprises a keyboard module, a base and a height adjusting mechanism. The base is pivoted to the keyboard module. The height adjusting mechanism comprises a rotating part, a first supporting rod, a second supporting rod, a first connecting rod and a second connecting rod. The rotating piece is rotatably arranged on the base. The first supporting rod is pivoted to the base and supported at the bottom of the keyboard module. The second support rod is pivoted to the base and supported at the bottom of the keyboard module. The first connecting rod is pivotally connected with the first supporting rod and the rotating part. The second connecting rod is pivoted with the first supporting rod and the rotating part. The first supporting rod and the second supporting rod are lifted or lowered along with the rotation of the rotating piece.

Preferably, the height adjustment mechanism further comprises a first ball joint and a second ball joint. The first ball joint is pivoted with the first connecting rod and the rotating part. The second ball joint is pivoted with the second connecting rod and the rotating piece.

Preferably, the height adjustment mechanism further comprises a third link and a fourth link. The third connecting rod is pivoted with the first supporting rod and the first connecting rod. The fourth connecting rod is pivoted with the second supporting rod and the second connecting rod.

Preferably, the height adjustment mechanism further comprises a third ball joint and a fourth ball joint. The third ball joint is pivoted with the third connecting rod and the first connecting rod. The fourth ball joint is pivoted with the fourth connecting rod and the second connecting rod.

Preferably, the rotating member is located at a middle position of the base.

Preferably, the base includes a bottom plate having a through portion from which the rotating member is exposed.

Preferably, the base has a bottom surface, and the rotating member does not protrude beyond the bottom surface.

Preferably, the base has a bottom surface, the rotating member includes a rotating portion and an elongated portion connected to each other, the first connecting rod and the second connecting rod are pivotally connected to the rotating portion, and the elongated portion is closer to the bottom surface than the rotating portion.

Preferably, the base includes a bottom plate, and the keyboard structure further includes a first pivot portion and a second pivot portion. The first pivot part is fixed on the bottom plate. The second pivot part is fixed on the bottom plate. The first support rod is rotatably but non-slidably pivoted to the first pivoting portion, and the second support rod is rotatably but non-slidably pivoted to the second pivoting portion.

Preferably, the device further comprises an operating member. The operating part comprises an operating part and a connecting part which are connected, the operating part protrudes out of the base laterally, and the connecting part is connected with the rotating part so as to drive the rotating part to rotate.

Preferably, the connecting portion is a rack, and the rotating member has a plurality of gear teeth engaged with the rack.

Preferably, the base includes an extension portion, and the extension portion laterally protrudes relative to the keyboard module.

Preferably, the base includes a first positioning portion, the rotating member includes a plurality of second positioning portions, and the first positioning portion is positioned at the corresponding second positioning portion.

Preferably, the base has a bottom surface, the rotating member includes a plurality of strips exposed from the bottom surface, and the plurality of second positioning portions are located corresponding to the plurality of strips.

Preferably, the base has a groove, each of the second positioning portions is a concave portion, and the first positioning portion includes a positioning ball and an elastic element. The elastic element is connected to the groove bottom surface of the groove and the positioning ball and is used for providing elastic force for positioning the positioning ball on the corresponding second positioning part.

Compared with the prior art, the keyboard structure with the adjustable angle, provided by the invention, has the advantages that the first supporting rod and the second supporting rod are lifted or lowered along with the rotation of the rotating member, so that the size of an included angle between the keyboard module and the base is changed, and different requirements of users are met.

In order to better appreciate the above and other aspects of the present invention, reference will now be made in detail to the embodiments illustrated in the accompanying drawings.

Drawings

Fig. 1 is a top view of a keyboard structure according to an embodiment of the invention.

Fig. 2 is a bottom view of the keyboard structure of fig. 1.

Fig. 3 is a side view of the keyboard structure of fig. 1 illustrating the opening of the keyboard module.

Fig. 4 is a schematic diagram of the third link, the first support rod and the first link shown in fig. 1.

Fig. 5 shows a cross-sectional view of the keyboard structure of fig. 2 in the direction 5-5'.

FIG. 6 is a top view of a keyboard structure according to another embodiment of the invention.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 1 to 4, fig. 1 is a top view of a keyboard structure 100 according to an embodiment of the invention, fig. 2 is a bottom view of the keyboard structure 100 of fig. 1, fig. 3 is a side view of the keyboard structure 100 of fig. 1 when a keyboard module 110 is opened, and fig. 4 is a schematic view of a third connecting rod 132c, a first supporting rod 132a and a first connecting rod 132b of fig. 1. To avoid the figures from being overly complicated, the keyboard module 110 is not shown in fig. 1 and fig. 2, and the keyboard structure 100 shown in fig. 3 only shows the keyboard module 110, the base 120, the first supporting rod 132a and the second supporting rod 133 a.

As shown in fig. 1 and 4, the keyboard structure 100 includes a keyboard module 110, a base 120 and a height adjustment mechanism 130. The base 120 is pivotally connected to the keyboard module 110, so that the base 120 and the keyboard module 110 can rotate relatively. The height adjusting mechanism 130 includes a rotation member 131, a first support rod 132a, a first link 132b, a third link 132c, a first ball joint 132d, a third ball joint 132e, a fifth ball joint 132f, a second support rod 133a, a second link 133b, a fourth link 133c, a second ball joint 133d, a fourth ball joint 133e, and a sixth ball joint 133 f.

As shown in fig. 1, the first support rod 132a, the first link 132b, the third link 132c, the first ball joint 132d, the third ball joint 132e, and the fifth ball joint 132f constitute a first height adjuster 132', and the second support rod 133a, the second link 133b, the fourth link 133c, the second ball joint 133d, the fourth ball joint 133e, and the sixth ball joint 133f constitute a second height adjuster 132 ". The first height adjuster 132' and the second height adjuster 132 "are linkage mechanisms. The first height adjuster 132' and the second height adjuster 132 ″ are disposed at opposite sides of the rotation shaft center C1 of the rotation member 131, respectively. In addition, the first height adjuster 132' and the second height adjuster 132 ″ may be identical in structural composition, but may be different. In another embodiment, the keyboard structure 100 may omit one of the first height adjuster 132' and the second height adjuster 132 ″.

As shown in fig. 1 and 3, the rotating member 131 is rotatably disposed on the base 120. The first supporting rod 132a is pivotally connected to the base 120 and supported on the bottom 110b of the keyboard module 110 to support the keyboard module 110. The second supporting rod 133a is pivotally connected to the base 120 and supported at the bottom of the keyboard module 110 to support the keyboard module 110. As shown in FIG. 3, the two support rods can increase the stability of supporting the keyboard module 110, but one of the support rods can be omitted.

As shown in fig. 1 and 3, the first link 132b is pivotally connected to the first supporting rod 132a and the rotating member 131, for example, the first link 132b is pivotally connected to the first supporting rod 132a through the third link 132 c. The second link 133b pivotally connects the second support rod 133a and the rotating member 131, for example, the second link 133b pivotally connects the second support rod 133a via the fourth link 133 c. Thus, with the rotation of the rotating member 131, the first height adjuster 132' and the second height adjuster 132 ″ are driven to perform link motion simultaneously, so that the first supporting rod 132a and the second supporting rod 133a raise or lower the keyboard module 110, thereby changing the included angle a1 between the keyboard module 110 and the base 120.

As shown in FIG. 3, the distance between the bottom 110b of the keyboard module 110 and the base 120 is different at the same included angle A1. As shown in fig. 3, the first supporting rod 132a and the second supporting rod 133a are located at different positions along the direction Y, so that the length L1 of the first supporting rod 132a and the length L2 of the second supporting rod 133a viewed from the YZ plane (i.e., the viewing angle of fig. 3) are different, so that the first supporting rod 132a and the second supporting rod 133a can support the bottom 110b of the keyboard module 110 at the same included angle a1 to increase the stability of the keyboard module 110 and the base 120. In addition, the aforementioned technical effects can be achieved by properly designing the rod lengths of the first height adjuster 132' and the rod lengths of the second height adjuster 132 ″.

As shown in fig. 1, the third link 132c pivotally connects the first support rod 132a and the first link 132 b. When the rotating member 131 rotates, the first connecting rod 132b drives the third connecting rod 132c and the first supporting rod 132a to rotate, so that the first supporting rod 132a rotates to raise or lower the keyboard module 110. Similarly, the fourth link 133c pivotally connects the second support rod 133a and the second link 133 b. When the rotating member 131 rotates, the second link 133b drives the fourth link 133c and the second support rod 133a to rotate, so that the second support rod 133a rotates to raise or lower the keyboard module 110.

As shown in fig. 1, the base 120 includes a bottom plate 121, a first pivot portion 122 and a second pivot portion 123, wherein the first pivot portion 122 and the second pivot portion 123 are fixed on the bottom plate 121. In the present embodiment, the first pivot portion 122 and the second pivot portion 123 are, for example, slide rails. The first supporting rod 132a is rotatably but non-slidably pivoted to the first pivoting portion 122, and the second supporting rod 133a is rotatably but non-slidably pivoted to the second pivoting portion 123. Thus, the first supporting rod 132a can be prevented from sliding relative to the first pivoting portion 122 and the second supporting rod 133a can be prevented from sliding relative to the second pivoting portion 123, so as to prevent the included angle a1 from randomly changing along with the sliding of the supporting rods.

In an embodiment, as shown in fig. 1, the base 120 further includes a first stopping portion 124 and a second stopping portion 125, wherein the first stopping portion 124 and the second stopping portion 125 are fixed on the first pivoting portion 122 and respectively adjacent to two opposite sides of the first supporting rod 132a, so as to limit the sliding of the first supporting rod 132a relative to the first pivoting portion 122. In addition, the manner of limiting the sliding of the second supporting rod 133a is similar to or the same as the manner of limiting the sliding of the first supporting rod 132a, and is not described herein again.

As shown in fig. 1 and 4, the first ball joint 132d pivotally connects the first connecting rod 132b and the rotating member 131. Since the first ball joint 132d provides multiple degrees of freedom, when the rotating member 131 rotates, the first connecting rod 132b and the rotating member 131 are driven to rotate relatively. Further, the first ball joint 132d may be fixed to the rotation member 131 or the first link 132 b. The first ball joint 132d is integrally formed with the rotation member 131, or the first ball joint 132d is integrally formed with the first link 132 b. Similarly, the second ball joint 133d pivotally connects the second link 133b and the rotation member 131. Since the second ball joint 133d provides multiple degrees of freedom, the second connecting rod 133b and the rotating member 131 can be driven to rotate relatively when the rotating member 131 rotates. Further, the second ball joint 133d may be fixed to the rotation member 131 or the second link 133 b. The second ball joint 133d and the rotation member 131 are integrally formed, or the second ball joint 133d and the second link 133b are integrally formed. In another embodiment, first ball joint 132d and/or second ball joint 133d may be replaced by a cylindrical joint, which does not affect the motion of first height adjuster 132' and second height adjuster 132 ".

As shown in fig. 1 and 4, the third ball joint 132e pivotally connects the first link 132b and the third link 132c, and the fifth ball joint 132f pivotally connects the third link 132c and the first supporting rod 132 a. Since the third ball joint 132e and the fifth ball joint 132f provide multiple degrees of freedom, the first supporting rod 132a, the first connecting rod 132b and the third connecting rod 132c can be driven to rotate relatively when the rotating member 131 rotates. Similarly, the fourth ball joint 133e pivotally connects the second link 133b and the fourth link 133c, and the sixth ball joint 133f pivotally connects the fourth link 133c and the second support bar 133 a. Since the fourth ball joint 133e and the sixth ball joint 133f provide multiple degrees of freedom, the second support rod 133a, the second link 133b, and the fourth link 133c can be driven to rotate relatively when the rotating member 131 rotates.

Referring to fig. 2 and 5, fig. 5 is a cross-sectional view of the keyboard structure 100 of fig. 2 along a direction 5-5'. The rotatable member 131 is located approximately in the middle of the base 120 and near the rear end of the base 120. As shown in fig. 5, the bottom plate 121 of the base 120 has a penetrating portion 121a, and the rotor 131 is exposed from the penetrating portion 121 a. The rotation of the rotation member 131 can be conveniently operated by an operator due to the exposure of the rotation member 131. The bottom plate 121 of the base 120 has a bottom surface 121b, and the rotation member 131 does not protrude beyond the bottom surface 121 b. Thus, when the keyboard structure 100 is placed on a carrying surface (not shown), the rotating member 131 is prevented from interfering with the carrying surface. The support surface here is for example a table top.

As shown in fig. 2 and 5, the rotor 131 includes a rotating portion 1311 and a long portion 1312 connected to each other. The first link 132b and the second link 133b are pivotally connected to the rotating portion 1311, and the long portion 1312 is closer to the bottom surface 121b than the rotating portion 1311, so that an operator can conveniently operate the long portion 1312 to rotate the rotating member 131. The long section 1312 includes, for example, a plurality of long pieces 1312a, and a joint of the plurality of long pieces 1312a substantially corresponds to the rotation axis center C1 of the rotor 131.

As shown in fig. 5, the bottom plate 121 of the base 120 includes a first positioning portion 1211, the rotating member 131 includes a plurality of second positioning portions 1313 (only one is shown in fig. 5, and a plurality of positioning portions are shown in fig. 2), and the first positioning portion 1211 is positioned corresponding to the second positioning portions 1313. In this way, the first positioning portions 1211 and the corresponding second positioning portions 1313 are combined to achieve the different positioning of the segments with the included angles a 1.

As shown in fig. 5, the bottom plate 121 of the base 120 has a groove 121r, each of the second positioning portions 1313 is a concave portion, and the first positioning portion 1211 includes a positioning ball 1211a and an elastic element 1211 b. The elastic element 1211b may be a spring, for example, or an elastic sheet. The elastic element 1211b is connected to the bottom surface of the groove 121r and the positioning ball 1211a, and is used for providing an elastic force for positioning the positioning ball 1211a in the corresponding second positioning portion 1313. In detail, when the positioning ball 1211a is positioned in the corresponding second positioning portion 1313, the positioning ball 1211a is pressed against the second positioning portion 1313 by the elastic force, so that the rotating member 131 and the base 120 are not easily opposite to each other, and the included angle a1 between the keyboard module 110 and the base 120 is further stabilized. The rotation member 131 can rotate again to adjust the positioning ball 1211a to be positioned at different second positioning portions 1313 so as to change the included angle a1 between the keyboard module 110 and the base 120 as long as the rotation member overcomes the elastic force applied by the positioning ball 1211a to the second positioning portions 1313.

As shown in fig. 2, the positions of second positioning portions 1313 correspond to strips 1312a, so as to establish the relationship between second positioning portions 1313 and included angle a1, and an operator can know the positioning positions through the positions of strips 1312 a.

Referring to fig. 6, a top view of a keyboard structure 200 according to another embodiment of the invention is shown. To avoid the excessive complexity of the drawings, the keyboard module 110 is not shown in fig. 6. The keyboard structure 200 includes a keyboard module 110 (not shown, similar to the structure shown in fig. 1 to 5), a base 220, a height adjustment mechanism 230, and an operating member 240. The base 220 is pivotally connected to the keyboard module 110. The height adjusting mechanism 230 includes a rotating member 231, a first support rod 132a, a first link 132b, a third link 132c, a first ball joint 132d, a third ball joint 132e, a fifth ball joint 132f, a second support rod 133a, a second link 133b, a fourth link 133c, a second ball joint 133d, a fourth ball joint 133e, and a sixth ball joint 133 f.

The operating element 240 includes an operating portion 241 and a connecting portion 242 connected to each other, the operating portion 241 laterally protrudes from the bottom plate 121 of the base 220, and the connecting portion 242 connects the rotating element 231 to drive the rotating element 231 to rotate. In the present embodiment, the connecting portion 242 is, for example, a rack, the rotating member 231 has a plurality of gear teeth 2311, and the gear teeth 2311 are engaged with the connecting portion 242. In addition, the base 220 of the present embodiment has a structure similar to or the same as the base 120, except that the base 220 further includes an extension portion 211 in the present embodiment. The extension 211 laterally protrudes relative to the keyboard module 110 (not shown). Thus, when the rotating member 231 is to be operated, the operating portion 241 can be moved along the X direction under the extending portion 211, so as to prevent the entire keyboard structure 200 from sliding.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims

1. A keyboard structure, comprising:

a keyboard module;

the base is pivoted with the keyboard module; and

a height adjustment mechanism, the height adjustment mechanism comprising:

the rotating piece is rotatably arranged on the base;

the first supporting rod is pivoted to the base and supported at the bottom of the keyboard module;

the second supporting rod is pivoted to the base and supported at the bottom of the keyboard module;

the first connecting rod is pivoted with the first supporting rod and the rotating part; and

a second connecting rod pivotally connected to the first supporting rod and the rotating member;

the first supporting rod and the second supporting rod are lifted or lowered along with the rotation of the rotating piece.

2. The keyboard structure of claim 1, wherein the height adjustment mechanism further comprises:

the first ball joint is pivoted with the first connecting rod and the rotating piece; and

the second ball joint is pivoted with the second connecting rod and the rotating piece.

3. The keyboard structure of claim 1, wherein the height adjustment mechanism further comprises:

the third connecting rod is pivoted with the first supporting rod and the first connecting rod; and

the fourth connecting rod is pivoted with the second supporting rod and the second connecting rod.

4. The keyboard structure of claim 3, wherein the height adjustment mechanism further comprises:

a third ball joint which is pivoted with the third connecting rod and the first connecting rod; and

and the fourth ball joint is pivoted with the fourth connecting rod and the second connecting rod.

5. The keyboard structure of claim 1, wherein the rotation member is located at a middle position of the base.

6. The keyboard structure of claim 1, wherein the base comprises a bottom plate having a through portion, the rotation member being exposed from the through portion.

7. The keyboard structure of claim 1, wherein the base has a bottom surface and the rotation member does not protrude beyond the bottom surface.

8. The keyboard structure of claim 1, wherein the base has a bottom surface, the rotation member comprises a rotation portion and an elongated portion connected to each other, the first and second links are pivotally connected to the rotation portion, and the elongated portion is closer to the bottom surface than the rotation portion.

9. The keyboard structure of claim 1, wherein the base comprises a bottom plate, the keyboard structure further comprising:

the first pivoting part is fixed on the bottom plate; and

the second pivot part is fixed on the bottom plate;

the first support rod is rotatably but non-slidably pivoted to the first pivoting portion, and the second support rod is rotatably but non-slidably pivoted to the second pivoting portion.

10. The keyboard structure of claim 1, further comprising:

the operating part comprises an operating part and a connecting part which are connected, the operating part protrudes out of the base laterally, and the connecting part is connected with the rotating part so as to drive the rotating part to rotate.

11. The keyboard structure of claim 10, wherein the connecting portion is a rack, and the rotating member has a plurality of teeth engaged with the rack.

12. The keyboard structure of claim 10, wherein the base comprises an extension portion that protrudes laterally relative to the keyboard module.

13. The keyboard structure of claim 1, wherein the base comprises a first positioning portion, the rotation member comprises a plurality of second positioning portions, and the first positioning portion is positioned at the corresponding second positioning portion.

14. The keyboard structure of claim 13, wherein the base has a bottom surface, the rotation member comprises a plurality of strips exposed from the bottom surface, and the plurality of second positioning portions are located corresponding to the plurality of strips.

15. The keyboard structure of claim 13, wherein the base has a groove, each of the second positioning portions is a concave portion, and the first positioning portion comprises:

a positioning ball; and

the elastic element is connected with the groove bottom surface of the groove and the positioning ball and is used for providing elastic force for positioning the positioning ball on the corresponding second positioning part.