TWI385689B - Keyboard with supporting apparatus - Google Patents

Description

Keyboard with support device

The present invention relates to a keyboard, and more particularly to a keyboard having a support device.

A keyboard design that meets the human-machine requirements must ensure that the angle between the user's wrist and the forearm is almost zero, that is, the keyboard is tilted at an angle when in use. The current solution is to provide two receiving slots on the back of the keyboard away from the two corners of the user end, and two rotatable brackets of different lengths are disposed in each receiving slot. When the user wants to tilt the keyboard, the keyboard needs to be turned up so that the back side of the keyboard faces upwards, and the bracket of the appropriate length is selected, and the two brackets are respectively rotated more than 90 degrees to be fixed at the edge of the receiving slot, thereby supporting the keyboard as a whole. A certain angle of inclination. When the bracket needs to be stowed, the keyboard needs to be turned to the back of the keyboard, and the bracket is rotated in the opposite direction to be fastened into the receiving slot.

However, in the existing keyboard support device, when the height is adjusted, the bracket needs to be seen on the back of the keyboard, and then the support is supported. In addition, the brackets at both ends of the keyboard have only two lengths, that is, only the keyboard can be raised by two tilting angles. From an ergonomic point of view, this operation increases the user's fatigue level and cannot adapt to different body height differences.

In view of the above, it is necessary to provide a keyboard having a supporting device by which the height of the keyboard can be adjusted in sections.

The keyboard comprises a housing and a supporting device, the bottom of the housing is provided with a receiving groove, and the supporting device comprises a bracket fixed in the receiving groove, and the side wall of the receiving groove The sliding frame is disposed in the casing The driving member is movably received in the push-pull shaft and one end of the driving member passes through the shaft wall of the push-pull shaft; the elastic member is fixed at one end in the push-pull shaft, and the other end abuts against the driving member; the push-pull shaft drives the elastic member to push the driving member Lift the bracket.

The above supporting device can adjust the height of the keyboard by pulling the push-pull shafts at both ends, thereby avoiding the inconvenience of frequently flipping the keyboard to support the bracket. Through the jacking portion of the driving member, the height of the keyboard can be adjusted stepwise to adapt to different height differences of the human body.

As shown in Figure 1, a keyboard 100 in accordance with a preferred embodiment of the present invention is disclosed. The keyboard 100 includes a housing 10 that houses a button and a support device 20, wherein the support device 20 is slidably secured within the housing 10. The height of the keyboard is adjusted in stages by pushing and pulling the support device 20.

Referring to FIG. 2 , the housing 10 includes an upper housing 11 and a lower housing 12 that is engaged with the upper housing 11 . The upper housing 11 and the lower housing 12 cooperate to form a shaft hole 13. In the embodiment, the shaft hole 13 is disposed at one end of the housing 10 away from the user. The support device 20 is mounted in the shaft hole 13, and the support device 20 has a shaft hole 13 extending from both ends for the user to operate.

Referring to FIG. 3, the bottom of the bottom of the lower casing 12 is formed with a receiving groove 121. The middle of the bottom surface of the receiving groove 121 is formed with a through hole 123 communicating with the shaft hole 13. The two side walls of the receiving groove 121 are provided with a sliding slot 122. .

The supporting device 20 includes a push-pull shaft 21, a transmission member 14, a driving member 22, and a support The frame 23 and the elastic member 24. The push-pull shaft 21 is connected by the ends of the two half shafts, is slidably disposed in the housing 10, and can accommodate the driving member 22; the bracket 23 is fixed in the receiving groove 121; the driving member 22 is movable The push-pull shaft 21 is disposed in the push-pull shaft 21 and one end of the driving member 22 passes through the shaft wall of the push-pull shaft 21; the elastic member 24 is fixed at one end in the push-pull shaft 21, and the other end abuts against the driving member 22; the push-pull shaft 21 drives the elastic member The pusher drive member 22 lifts the bracket 23 up.

A push button 214 is disposed at two ends of the push-pull shaft 21, and the button 214 extends from the shaft hole 13 for the user to operate. A first through hole for inserting and extending the driving member 22 is disposed in a vertical axial direction near the axial ends of the shaft wall of the push-pull shaft 21. 211 and the second through hole 212, the push-pull shaft 21 is slidably connected by the transmission member 14. In the embodiment, the transmission member 14 includes a fixing bar 144, a toothed belt 141, and a rack 142 and a rack that mesh with the toothed belt 141. 143, the fixing strip 144 is provided with an annular groove, the toothed belt 141 is sleeved in the groove of the fixing strip 144, and the rack 142 and the rack 143 are respectively engaged with opposite sides of the toothed belt 141, the rack The 142 and the distal end of the rack 143 are fastened to the push-pull shaft 21, and the push-pull shaft 21 can be relatively slidably driven by the transmission member 14.

The driving member 22 includes a cantilever 222 and an ejection member 221. The ejector member 221 includes a supporting portion 2212 and a rising portion 2211. One end of the cantilever 222 is rotatably coupled to one of the housing 10 and the supporting portion 2212. The other end of the cantilever 222 is fixed to the housing 10 and the supporting portion 2212. One. In this embodiment, the upper end of the cantilever 222 is fixed on the housing 10, and the opposite end is rotatably coupled to the supporting portion 2212. The rising portion 2211 extends perpendicularly to the two ends of the supporting portion 2212, and the bottom surface of the supporting portion 2212 is provided with a plurality of limits. Bit slot 224.

One end of the elastic member 24 abuts against the limiting groove 224, and the other end is fixed in the sliding shaft 21. In this embodiment, the elastic member 24 includes a top post and a spring. The top post is T-shaped and fastened in the limiting slot of the driving member 22. One end of the spring is screwed on the bottom of the push-pull shaft 21, and the other end is screwed. On the top post, the elastic member 24 is stretched and slidably moved between the limiting slots 224 for adjusting the height of the support portion 2212 to adjust the height of the bracket 23, and the limiting slot 224 is adjusted. The elastic member 24 is prevented from returning to the original position.

The bracket 23 includes a first top plate 231 and a second top plate 232. The first top plate 231 is rotatably coupled to the second top plate 232. The free end of the first top plate 231 is provided with a stud 233. The stud 233 is rotatably inserted on both sides of the accommodating groove. The free end of the second top plate 232 is fixed to a return spring 234. The other end of the return spring 234 is fixed on the slide. The end of the slot. In the present embodiment, the first top plate 231 and the second top plate 232 are connected by a rotating shaft. The return spring 234 is fixed at one end of the sliding slot and the other end is fixed to the end of the second top plate 232. When the user wants to retract the bracket 23, the push-pull shaft 21 is retracted by the movable driving member 22, and the return spring 234 can The bracket 23 is pulled back.

Referring to FIG. 4, when one end of the push-pull shaft 21 is pulled out, the rack 142 drives the toothed belt 141 to slide, and the rack 143 pushes the opposite end of the push-pull shaft 21 to slide out of the shaft hole 13. At the same time, the elastic member 24 is slid between the limiting slots 224, the one end of the pushing portion 2211 of the driving member 22 is jacked up, and the other end is pressed downward to apply force to the bracket 23, and the end of the top plate subjected to the force is along the chute. 122, the bracket 23 changes from a shape to a V shape, and at the same time, the elastic member 24 is locked in the limiting slot 224, and the keyboard 1 is supported at a preset height.

Referring to FIG. 5, when the user wants to lower the height of the keyboard, the push-pull shaft 21 is pushed into the keyboard. At this time, the push-pull shaft 21 drives the elastic member 24 to slide in the opposite direction. The driving member 22 is rotated to the equilibrium position, retracted along the second through hole 212, and the downward pressure of the bracket 23 is lost, and is restored to the original position by the action of the return spring. Therefore, the user can adjust the length of the push-pull shaft 21 to extend. To adjust the height of the V-shaped bracket.

The support device 20 can adjust the height of the keyboard 100 by pulling the push-pull shafts 21 at both ends, thereby avoiding the inconvenience of frequently flipping the keyboard to support the bracket. Through the limiting slot provided in the support rod of the driving member 22, the height of the keyboard can be adjusted in multiple sections to adapt to different height differences of the human body.

10‧‧‧shell

11‧‧‧Upper casing

12‧‧‧ Lower case

13‧‧‧Axis hole

14‧‧‧ Transmission parts

20‧‧‧Support device

21‧‧‧Pushing shaft

22‧‧‧ Drives

23‧‧‧ bracket

24‧‧‧Flexible parts

121‧‧‧ accommodating slots

122‧‧‧Chute

123‧‧‧through hole

144‧‧‧Fixed strip

141‧‧‧ tooth belt

142‧‧‧ rack

143‧‧‧Rack

211‧‧‧ first through hole

212‧‧‧Second through hole

214‧‧‧ button

222‧‧‧ cantilever

221‧‧‧ ejection

224‧‧‧ Limit slot

231‧‧‧ first top board

232‧‧‧ second top board

233‧‧‧Bump

234‧‧‧Return spring

2211‧‧‧Elevation

2212‧‧‧Support

100‧‧‧ keyboard

1 is a perspective view of a keyboard having a support device in accordance with a preferred embodiment of the present invention.

Figure 2 is an exploded view of the support device of Figure 1.

Figure 3 is a top exploded view of the support device of Figure 1.

4 is a schematic view showing the jacking state of the supporting device of FIG. 1.

Figure 5 is a schematic view showing the equilibrium state of the supporting device of Figure 1.

10‧‧‧shell

11‧‧‧Upper casing

12‧‧‧ Lower case

13‧‧‧Axis hole

14‧‧‧ Transmission parts

20‧‧‧Support device

21‧‧‧Pushing shaft

22‧‧‧ Drives

23‧‧‧ bracket

24‧‧‧Flexible parts

121‧‧‧ accommodating slots

122‧‧‧Chute

123‧‧‧through hole

144‧‧‧Fixed strip

141‧‧‧ tooth belt

142‧‧‧ rack

143‧‧‧Rack

211‧‧‧ first through hole

212‧‧‧Second through hole

214‧‧‧ button

222‧‧‧ cantilever

221‧‧‧ ejection

224‧‧‧ Limit slot

231‧‧‧ first top board

232‧‧‧ second top board

233‧‧‧Bump

234‧‧‧Return spring

2211‧‧‧Elevation

2212‧‧‧Support

100‧‧‧ keyboard

Claims (9)

a keyboard comprising a housing and a supporting device, the bottom of the housing is provided with a receiving slot, and the supporting device comprises a bracket fixed in the receiving slot, the improvement is that: a sliding slot is arranged on the side wall of the receiving slot; The first top plate and the second top plate are rotatably connected to the second top plate. The supporting device further includes a push-pull shaft, a driving member and an elastic member. The push-pull shaft is slidably disposed in the housing, and the driving member is movably received. In the push-pull shaft, one end of the driving member passes through the shaft wall of the push-pull shaft; the elastic member is fixed at one end in the push-pull shaft, and the other end abuts against the driving member; the push-pull shaft drives the elastic member to push the driving member to lift the bracket. The keyboard of claim 1, wherein the driving member comprises a cantilever, a supporting portion and a jacking portion, one end of the cantilever is rotatably connected to one of the housing and the supporting portion, and the other end of the cantilever is fixed to the shell The other of the body and the support. The keyboard of claim 2, wherein the shaft wall of the push-pull shaft is provided with a through hole through which the jacking portion of the driving member passes. The keyboard of claim 2, wherein the support portion is provided with a plurality of limiting slots, and one end of the elastic member abuts in the limiting slot. The keyboard of claim 4, wherein the elastic member comprises a top post and a spring; one end of the top post abuts against the limiting groove of the driving member, and the other end is fixed to the spring. The keyboard of claim 1, wherein the free end of the first top plate is provided with a stud, the stud is rotatably inserted on both sides of the accommodating groove, and the free end of the second top plate is fixed with a return spring, the reset The other end of the spring is fixed at the end of the chute. The keyboard of claim 1, wherein the housing comprises The housing and the lower housing cooperate to form a shaft hole for receiving the push-pull shaft, and one end of the push-pull shaft extends out of the housing for user operation. The keyboard of claim 1, wherein the push-pull shaft is composed of two half shafts that are slidably coupled by a transmission member. The keyboard of claim 8, wherein the transmission member comprises a fixing strip, a toothed belt and two racks; the fixing strip is provided with an annular groove, and the toothed belt is sleeved in the groove of the fixing strip The rack is engaged with the toothed belts on opposite sides of the fixed strip and snapped onto the push-pull shaft.