CN107658155A - Button device and its balance bar structure - Google Patents

Abstract

The invention discloses a key device, which comprises a bottom plate, a key cap and at least one balance bar. The balance bar is a plate-shaped body, and the balance bar is arranged between the bottom plate and the keycap. The balance bar has a top plate and two side plates, the top plate and the side plates are made of metal materials, and the two side plates are connected to the two ends of the top plate. The ends of the two side plates away from the top plate are connected to the bottom plate, and the top plate is connected to the keycap. The balance bar is molded with plastic material on at least one of the top plate and the two side plates, so that the balance bar forms a composite structure, and the balance bar contacts at least one of the keycap and the bottom plate with the plastic material. Therefore, the problem of insufficient strength of the existing balance bar can be reinforced, and the cooperation between the balance bar, the keycap and the bottom plate has better precision, the cooperation will not be too loose or too tight, and it can also have the effect of noise reduction.

Description

Button device and its balance bar structure

technical field

The invention relates to a key device and its balance bar structure, in particular to a balance bar structure applied to a key device or other input devices.

Background technique

On the existing computer keyboards, multiple keys or function keys with a large ratio of length to width will be designed with a balance bar. The balance bar is made of a metal material with a circular cross-section. The other end of the balance bar is slidably arranged on the bottom plate, thereby forming a balance mechanism. When the key is pressed, the balance mechanism can be used to keep the keycap horizontal relative to the bottom plate during the action by sliding the balance bar relative to the bottom plate and pivoting relative to the keycap, thereby preventing the keycap from turning over during the action, so that Reduce the sensitivity of key triggers.

Due to the current trend of the notebook market, the total height of the keyboard is getting lower and lower, but the pressing stroke is getting higher and higher. Under the limitation of the internal space of the structure and the deformation of the plastic structure, the strength of the long key is insufficient when pressing the corner, which makes the keycap less When the flip occurs during the action, it is difficult to make the conduction point in the middle of the button go down synchronously, so that the sensitivity of the button trigger is reduced. Furthermore, the accuracy of the balance bar, the keycap, and the bottom plate is poor, and the fit is likely to be too tight or too loose, and the keycap is likely to generate noise during the operation process.

To sum up, the inventor feels that the above-mentioned defects can be improved, Naite devoted himself to research and combined with the application of theories, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned defects.

Contents of the invention

The technical problem to be solved by the present invention is to provide a key device and its balance bar structure, which can strengthen the problem of insufficient strength of the existing balance bar, so that the key cap will not be turned over during the action process, and the sensitivity of key triggering can be improved , and the cooperation between the balance bar and the keycap or the bottom plate has better precision, and can also have a sound-absorbing effect.

In order to solve the above technical problems, the present invention provides a key device, which includes a bottom plate, a key cap and at least one balance bar in the shape of a plate. The at least one balance bar is arranged between the bottom plate and the keycap, the at least one balance bar has a top plate and two side plates, the top plate and the side plates are made of metal materials, and the two side plates are connected to the The two ends of the top plate, the ends of the two side plates away from the top plate are connected to the bottom plate, the top plate is connected to the keycap, and the at least one balance bar is molded with plastic material on at least one of the top plate and the two side plates , making the at least one balance bar form a composite structure, and the at least one balance bar is in contact with at least one of the keycap and the bottom plate through the plastic material.

In order to solve the above-mentioned technical problems, the present invention also provides a balance bar structure of a button device, which is in the shape of a plate and has a top plate and two side plates, the top plate and the two side plates are made of metal materials, the two Two side plates are connected to the two ends of the top plate, the balance bar structure is molded with plastic material on the top plate and at least one of the two side plates, so that the balance bar structure forms a composite structure, and the plastic material can be used for Contact with at least one of the keycap and the bottom plate.

The beneficial effects of the present invention are:

In the balance bar of the present invention, plastic material is molded on at least one of the top plate and two side plates, so that the balance bar forms a composite structure, and the balance bar contacts at least one of the keycap and the bottom plate with plastic material. The balance bar has metal materials and plastic materials, which can reinforce the problem of insufficient strength of the existing balance bar, so that the keycap will not be turned over during the action process, and the sensitivity of key triggering can be improved, and the balance bar and the keycap or the bottom plate Fit has better precision, fit is not too loose or too tight.

Furthermore, in the balance bar of the present invention, plastic material is molded on at least one of the top plate and the two side plates, and the balance bar is in contact with at least one of the keycap and the bottom plate with the plastic material. When the top plate or two side plates of the balance bar are connected to the keycap or the bottom plate, the balance bar has the characteristics of metal strength and plastic properties, which can make the combination smoother, and the balance bar and the bottom plate and the keycap can be more slippery Smooth cooperation, can have the effect of silencer.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

FIG. 1 is an exploded perspective view of the first embodiment of the button device of the present invention.

FIG. 2 is an exploded perspective view from another angle of the first embodiment of the button device of the present invention.

FIG. 3 is a cross-sectional view of the first embodiment of the button device of the present invention.

FIG. 4 is a three-dimensional exploded view of the second embodiment of the button device of the present invention.

FIG. 5 is a cross-sectional view of the second embodiment of the button device of the present invention.

Detailed ways

[first embodiment]

Please refer to FIG. 1 and FIG. 2 , the present invention provides a key device, which can be applied to multiple keys or other keys. The key device includes a bottom plate 1 , at least one balance bar 2 and a key cap 3 .

The bottom plate 1 can be made of metal plate or other suitable materials, and a scissors-type assembly 4 can be further provided between the bottom plate 1 and the keycap 3, which is a double-link parallel mechanism, and can be used to guide the keycap 3 to be put on. , down, and balance the user's force on each key. A conductive film 5 may be disposed on the bottom plate 1 . In the drawings disclosed in this embodiment, the bottom plate 1 and the conductive film 5 are shown as a single body. In fact, a keyboard can have multiple key devices, and the bottom plates 1 of the multiple key devices are connected as one. It is also connected as one.

One or two balance poles 2 can be provided. In this embodiment, two balance poles 2 are disclosed, and the number of balance poles 2 is not limited. The balance bar 2 is a plate-shaped body. The balance bar 2 can be designed as an elongated plate corresponding to the length of the keycap 3. The balance bar 2 is arranged between the bottom plate 1 and the keycap 3, and the upper end of the balance bar 2 is connected to the key. The cap 3 and the lower end of the balance pole 2 are connected to the bottom plate 1 . In this embodiment, the upper end of the balance bar 2 is pivotally connected to the keycap 3 , and the lower end of the balance bar 2 is slidably connected to the bottom plate 1 . However, the connection method between the balance bar 2 and the base plate 1 and the keycap 3 is not limited, and can be changed according to needs. For example, the upper end of the balance bar 2 can also be slidably connected to the keycap 3 , and the lower end of the balance bar 2 can also be pivotally connected to the base plate 1 .

The balance pole 2 has a top plate 21 and two side plates 22, the top plate 21 and the side plates 22 are made of metal materials, the top plate 21 and the side plates 22 can be formed by metal powder or metal stamping. The top plate 21 is an elongated plate body, two side plates 22 are connected to the two ends of the top plate 21, and the two side plates 22 can extend downward from the two ends of the top plate 21, and the two side plates 22 protrude from the bottom of the top plate 21 Edge, so that the balance bar 2 is roughly U-shaped hollow shape. As shown in FIG. 3 , ends of the two side plates 22 of the balance bar 2 away from the top plate 21 can be connected to the bottom plate 1 , and the top plate 21 of the balance bar 2 can be connected to the keycap 3 . The balance bar 2 is formed with a plastic material 23 on at least one of the top plate 21 and the two side plates 22, so that the balance bar 2 forms a composite structure, and the balance bar 2 is in contact with at least one of the keycap 3 and the bottom plate 1 with the plastic material 23 .

Specifically, each side plate 22 is formed with a first sliding joint 221 at one end away from the top plate 21. The structure of the first sliding joint 221 is not limited. In this embodiment, the first sliding joint 221 is protruding. At one end of the side plate 22 , the width of the first sliding portion 221 is smaller than the width of the side plate 22 . A first pivot joint 211 is formed on the top plate 21, and the structure of the first pivot joint 211 is not limited. In this embodiment, a plurality of first pivot joints 211 are formed on the top plate 21. Each connecting portion 211 includes a cylindrical pivot shaft 212 , the plurality of pivot shafts 212 can be extended and connected as a whole, and a through hole 213 is respectively formed on the top plate 21 adjacent to the plurality of pivot shafts 212 . In this embodiment, the plastic material 23 is molded on the first pivot portion 211, that is, the plastic material 23 can be molded on the pivot shaft 212, and the plastic material 23 can be molded on the entire pivot shaft 212, or only on the pivot joint. Part of the shaft 212, for example, the plastic material 23 can only be molded on the surface or some sections of the pivot shaft 212, that is, the plastic material 23 can only be molded on the surface or some sections of the pivot shaft 212 that need to be in contact with the keycap 3 . In this embodiment, the plurality of pivot shafts 212 are extended and connected as a whole, and the whole is made of plastic material 23 . In addition, further, the width at the middle of the top board 21 may be greater than or equal to the width at both sides, so that a reinforcing portion 214 is formed at the middle of the top board 21 to provide reinforcement.

In addition, the base plate 1 may be provided with a second sliding joint portion 11 corresponding to the first sliding joint portion 221. The second sliding joint portion 11 is formed by the base plate 1. The structure of the second sliding joint portion 11 is not limited. In this embodiment, the second sliding portion 11 is a piece bent into an L shape, and can be provided with a slide groove 111 . The first sliding joint part 221 of the balance bar 2 is slidably arranged on the corresponding second sliding joint part 11 on the base plate 1, that is, the first sliding joint part 221 can be set in the slide groove 111, thereby the balance bar 2 The lower end of the sliding joint is slidably connected to the bottom plate 1, and the first sliding joint 221 can slide in the front and rear directions (Y-axis direction as shown in FIG. 1 ) in the second sliding joint 11 . In another embodiment, the structures of the first sliding connection portion 221 and the second sliding connection portion 11 can also be interchanged, and can also be replaced by other sliding connection structures.

In addition, the keycap 3 can be provided with a second pivotal portion 31 corresponding to the first pivotal portion 211 , the second pivotal portion 31 is formed by the keycap 3 , and the second pivotal portion 31 can be arranged on the keycap 3 At the edge of the bottom surface, etc., the structure of the second pivot portion 31 is not limited. In this embodiment, the keycap 3 is provided with a plurality of second pivot portions 31, and each of the plurality of second pivot portions 31 includes The base body 311 protrudes from the bottom surface of the keycap 3 and the pivot hole 312 is disposed in the base body 311 . The first pivot portion 211 of the balance bar 2 can be pivotally connected to the corresponding second pivot portion 31 on the keycap 3, that is, the plurality of pivot shafts 212 can be pivotally connected to the corresponding pivot holes 312, Thus, the upper end of the balance bar 2 is pivotally connected to the keycap 3 . In addition, the plurality of seat bodies 311 can be accommodated in the plurality of through holes 213 respectively, so that the balance bar 2 and the keycap 3 have better rigidity. In another embodiment, the structures of the first pivotal portion 211 and the second pivotal portion 31 can also be interchanged, and can also be replaced by other pivotal structures.

When the key device is pressed, the force of pressing the keycap 3 can be evenly distributed on the entire keycap 3 through the balance mechanism constituted by the balance bar 2, so that the keycap 3 can remain horizontal relative to the bottom plate 1 during the action process, This prevents the keycap 3 from turning over during the action so as to reduce the sensitivity of key triggering. The above-mentioned balance bar 2 can be used to strengthen the pressing linkage between the left and right of the button device (in the X-axis direction shown in FIG. 1 ), so as to have a better linkage effect.

[Second embodiment]

Please refer to Fig. 4 and Fig. 5, the main difference between this embodiment and the first embodiment is that in this embodiment, the plastic material 23 is molded on the first sliding joint 221, and the plastic material 23 can be molded on the entire first sliding joint part 221, or only formed on a part (such as the surface) of the first sliding part 221. The structure and actions of this embodiment are substantially the same as those of the first embodiment, and will not be repeated here.

The balance bar of the present invention adopts a plate-shaped design, which can replace the existing balance bar with a circular section, and obtain the advantage of plate-shaped geometric strength. A balance bar with a thinner thickness can reach the design strength of the existing balance bar to achieve space constraints. In this way, the optimized design of the pressing feel at the four corners of the button device is effectively achieved with geometric strength, which can maintain the customary pressing feel, and the feel is more stable, and effectively saves space and achieves the effect of thinning.

In the balance bar of the present invention, plastic material is molded on at least one of the top plate and two side plates, so that the balance bar forms a composite structure, and the balance bar contacts at least one of the keycap and the bottom plate with plastic material. The balance bar has metal materials and plastic materials, which can reinforce the problem of insufficient strength of the existing balance bar, so that the keycap will not be turned over during the action process, and the sensitivity of key triggering can be improved, and the balance bar and the keycap or the bottom plate Fit has better precision, fit is not too loose or too tight.

Furthermore, in the balance bar of the present invention, plastic material is molded on at least one of the top plate and the two side plates, and the balance bar is in contact with at least one of the keycap and the bottom plate with the plastic material. When the top plate or two side plates of the balance bar are connected to the keycap or the bottom plate, the balance bar has the characteristics of metal strength and plastic properties, which can make the combination smoother, and the balance bar and the bottom plate and the keycap can be more slippery Smooth cooperation, can have the effect of silencer. The connection between the two side plates and the bottom plate of the balance bar of the present invention is made of a combination of plastic material and metal material, so the noise generated by vibration can be reduced.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of patent protection of the present invention. Therefore, all equivalent changes made by using the description of the present invention and the contents of the accompanying drawings are all included in the protection of rights of the present invention. Within the scope, agree with Chen Ming.

Claims (10)

1. A button device, characterized in that, comprising: a bottom plate; a keycap; and At least one balance bar, which is a plate-shaped body, the at least one balance bar is arranged between the bottom plate and the keycap, the at least one balance bar has a top plate and two side plates, and the top plate and the side plates are made of metal materials The two side plates are connected to the two ends of the top plate, the ends of the two side plates away from the top plate are connected to the bottom plate, the top plate is connected to the keycap, and the at least one balance bar is connected between the top plate and the two At least one of the side plates is molded with plastic material, so that the at least one balance bar forms a composite structure, and the at least one balance bar contacts at least one of the keycap and the bottom plate with the plastic material. 2. The button device according to claim 1, wherein a first pivotal portion is formed on the top plate, the plastic material is molded on the first pivotal portion, and the keycap is provided with the first pivotal portion. A second pivotal portion corresponding to the pivotal portion, the first pivotal portion is pivotally connected to the corresponding second pivotal portion. 3. The button device according to claim 2, wherein a plurality of first pivot joints are formed on the top plate, and each of the plurality of first pivot joints includes a cylindrical pivot joint. axis, and a plurality of said pivot shafts are connected as a whole, a perforation is respectively provided on the position adjacent to said plurality of said pivot shafts on the top plate, said keycap is provided with a plurality of said second pivot parts, and a plurality of Each of the second pivot joints includes a base protruding from the bottom surface of the keycap and a pivot hole disposed in the base, a plurality of the pivot shafts are pivotally connected to the corresponding pivot holes, and a plurality of the pivot shafts are pivoted in the corresponding pivot holes. The seat bodies are accommodated in the plurality of through holes respectively. 4. The button device according to claim 1, wherein a first sliding joint is formed on one end of each side plate away from the top plate, the plastic material is molded on the first sliding joint, the The bottom plate is provided with a second sliding joint corresponding to the first sliding joint, and the first sliding joint is slidably arranged on the corresponding second sliding joint. 5. The key device according to claim 1, wherein a reinforcing portion is formed in the middle of the top plate. 6. A balance bar structure of a button device, characterized in that it is a plate-shaped body with a top plate and two side plates, the top plate and the two side plates are made of metal materials, and the two side plates are connected At both ends of the top plate, the balance bar structure is molded with plastic material on at least one of the top plate and the two side plates, so that the balance bar structure forms a composite structure, and the plastic material can be used with the keycap and At least one of the bottom plates is in contact. 7. The balance bar structure of the button device according to claim 6, wherein a first sliding joint is formed on the ends of the two side plates away from the top plate, and the plastic material is molded on the first sliding joint. then on. 8 . The balance bar structure of the button device according to claim 6 , wherein a first pivotal portion is formed on the top plate, and the plastic material is molded on the first pivotal portion. 9. The balance bar structure of the button device according to claim 8, wherein a plurality of first pivot joints are formed on the top plate, and each of the plurality of first pivot joints comprises a cylindrical shape. Shaped pivot shafts, and a plurality of the pivot shafts are connected as a whole, and the positions adjacent to the plurality of pivot shafts are respectively provided with a through hole on the top plate. 10 . The balance bar structure of the key device according to claim 6 , wherein a reinforcing portion is formed in the middle of the top plate. 11 .