Anti-pinch guide structure for keyboard cover

Abstract

The anti-pinch guide structure comprises the keyboard cover, key seat side covers and side plates, the side plates are symmetrically installed on the two sides of the side plates, the key seat side covers are installed on the front sides of the side plates, and the keyboard cover moving front and back is installed between the two key seat side covers and the two side plates. Anti-pinch guide columns are installed on the two sides of the front end of the keyboard cover, transmission gears are installed on the two sides of the rear end of the keyboard cover, gear guide pieces are arranged on the sides, close to the keyboard cover, of the side plates, guide racks with the rear portions protruding upwards are installed on the opposite sides of the gear guide pieces, and the guide racks are meshed with the transmission gears. A slow descending guide groove with the front end bent downwards is formed in the upper portion of the side, close to the keyboard cover, of the keyboard slow descending device, and a notch is formed in the bent end of the slow descending guide groove. The invention has the characteristics of reducing the risk of slipping of the key cover, preventing operators from being injured, preventing the key cover from being damaged and the like.

Description

Technical Field

[0001] The invention relates to the technical field of keyboard covers, and in particular to an anti-pinch guiding structure for a keyboard cover. Background Art

[0002] Many electric pianos on the market use pull-out key covers. The structural feature of the key cover is that there are pin caps on both sides of the front end of the key cover that cooperate with the slide grooves on the inner side of the left and right side arms to achieve up and down and front and back sliding. In order to prevent the key cover from twisting and tilting, two gears are provided on both sides of the rear end of the key cover to mesh with the racks on the inner side of the side arms. The two gears are connected by a long axis and rotate synchronously. At present, this structure has two disadvantages: first, the key cover cannot stop stably after opening, and there is a risk of falling back, affecting the performance; second, the key cover is closed to the up and down moving area of ​​the groove and suddenly falls to the end, which can easily cause injury to the operator and damage to the key cover.

[0003] In order to solve the above technical problems, it is necessary to improve the key cover structure Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an anti-pinch guiding structure for a keyboard cover, which has the characteristics of reducing the risk of the key cover slipping, avoiding operator injuries, and preventing key cover damage.

[0005] The technical solution adopted by the present invention to solve its technical problems is: to provide an anti-pinch guide structure for a keyboard cover, comprising a keyboard cover, a keybed side cover and a side plate, the side plates are symmetrically installed on both sides of the side plate, the keybed side cover is installed on the front side of the side plate, a keyboard cover that moves forward and backward is installed between the two keybed side covers and the two side plates, anti-pinch guide columns are installed on both sides of the front end of the keyboard cover, transmission gears are installed on both sides of the rear end of the keyboard cover, a gear guide is arranged on one side of the side plate close to the keyboard cover, a guide rack with a rear portion protruding upward is arranged on the opposite side of the gear guide, the guide rack is meshed with the transmission gear, a slow-descent guide groove with a front end bent downward is arranged on the upper part of the side of the keyboard slow-descent device close to the keyboard cover, a notch is arranged at the bent end of the slow-descent guide groove, a damping component is rotatably installed on the other side of the keyboard slow-descent device, a damping protrusion extending from the notch is arranged on the damping component, and the anti-pinch guide column is inserted into the slow-descent guide groove.

[0006] In the present technical solution, a gear guide and transmission gears on both sides of the rear end of the keyboard cover are installed so that the keyboard cover can move forward and backward smoothly. At the same time, the guide rack is used to transmit the transmission gear so that the keyboard cover can run smoothly. A keyboard slow-down device is provided to guide the keyboard cover to slowly descend. A damping member is provided to support the anti-pinch guide column so that the anti-pinch guide column can slowly descend. A damping protrusion is provided to offset the anti-pinch guide column.

[0007] The middle and rear part of the guide rack protrudes upward, so that the guide rack can form a transmission rack with inclined ends. The two ends of the guide rack are in the same horizontal plane, so that the transmission rack at the rear end has a larger inclination angle, while the transmission rack at the rear end has a smaller inclination angle. The transmission rack at the rear end can prevent the keyboard cover from sliding off, while the transmission rack at the front end can slow down the movement speed of the keyboard cover, making it convenient for the keyboard cover to slide off slowly.

[0008] The damping protrusion on the damping member can provide buffering support for the keyboard cover. When the keyboard cover slides down, the anti-pinch guide column slides down along the slow-descent guide groove, and the notch of the slow-descent guide groove can facilitate the protrusion of the damping protrusion.

[0009] As a supplement to the present technical solution, a rear bracket is installed on the lower side of the rear end of the keyboard cover, and a number of spindle seats are evenly installed on the rear bracket. A rotating shaft is horizontally installed in the spindle seat, and transmission gears are installed on both ends of the rotating shaft. In the present technical solution, the spindle seat is provided to facilitate the installation of the rotating shaft, and the rotating shaft is installed to drive the transmission gear to run synchronously.

[0010] As a supplement to the present technical solution, a guide groove is provided on the upper side of the guide rack, and a guide protrusion inserted into the guide groove is provided on the transmission gear. The guide groove and the guide protrusion are provided to ensure stable operation of the keyboard cover.

[0011] As a supplement to the present technical solution, the guide groove and the guide rack are parallel as a whole, and a transition arc surface corresponding to the raised portion of the guide rack is provided on the guide groove, and the transition arc surface is provided to facilitate the smooth operation of the guide protrusion.

[0012] As a supplement to the technical solution, buffer pads matching the guide protrusions are installed at both ends of the guide groove, and the buffer pads are provided to reduce the noise generated during the operation.

[0013] As a supplement to the present technical solution, a notch structure corresponding to the raised portion of the guide rack is provided on the upper side wall of the guide groove, and the notch structure is provided to facilitate the installation of the keyboard cover.

[0014] As a supplement to the present technical solution, a slow-descent bracket is installed on the lower side of the front end of the keyboard cover, anti-pinch guide columns are installed on both sides of the slow-descent bracket, and a guide sleeve structure is installed on the anti-pinch guide columns. In the present technical solution, the slow-descent bracket is arranged to facilitate the installation of the anti-pinch guide columns, and at the same time, the guide sleeve structure can prevent the anti-pinch guide columns from scratching the keyboard slow-descent device.

[0015] As a supplement to the present technical solution, the keyboard slow-descent device is provided with a damping member mounting boss, the damping member mounting boss is provided with a damping oil groove, the damping member is provided with an inserting boss inserted into the damping oil groove, and the damping oil groove is filled with damping oil.

[0016] In the present technical solution, a damping member mounting boss is provided to facilitate the installation of the damping member, and a damping oil groove is provided to fill the damping oil. When the plug-in boss is inserted into the damping oil groove, a damping force can be generated between the damping member and the damping oil groove to ensure that the front end of the keyboard cover can slowly descend.

[0017] The damping oil itself is a non-Newtonian fluid. When excessive impact force hits the damping element, the damping oil can absorb a large amount of impact force. When the impact force disappears, the weight of the keyboard cover itself will push the damping element, and the damping element can slowly rotate, allowing the keyboard cover to slowly drop until the keyboard cover is closed.

[0018] As a supplement to the present technical solution, a circle of auxiliary grooves is provided on the outer side of the damping oil groove, and a circle of auxiliary ribs inserted into the auxiliary grooves is provided on the outer side of the plug-in boss. In the present technical solution, auxiliary grooves and auxiliary ribs are provided to increase the damping force between the damping element and the damping element mounting boss.

[0019] As shown in the figure, as a supplement to the present technical solution, the lower side wall of the slow descent guide groove is a guide column support wall, and a part of the support position remains at the position where the notch is set in the guide column support wall. When the anti-pinch guide column runs in the slow descent guide groove, the guide column support wall always supports the anti-pinch guide column.

[0020] As a supplement to the present technical solution, a torsion spring structure is sleeved on the damping member, a torsion spring clamping protrusion is provided on the damping member, one end of the torsion spring structure is fixed on the torsion spring clamping protrusion, and the other end is fixed on the key base side cover.

[0021] In the technical solution, a torsion spring clamping protrusion is provided to facilitate the installation of the torsion spring structure, and the torsion spring structure is provided to provide secondary support to the damping element to absorb and buffer and avoid excessive vibration. At the same time, the torsion spring structure can play the function of resetting the damping element.

[0022] As a supplement to the present technical solution, the keyboard slow-descent device is provided with two snap-in protrusions on one side close to the keyboard cover, a shell is plugged and installed on the snap-in protrusions, and a convex rib structure extending upward is provided on the snap-in protrusions.

[0023] Beneficial effects: The present invention relates to an anti-pinch guide structure for a keyboard cover, which has the following advantages:

[0024] (1) After the keyboard cover is opened to a certain extent, it will automatically slide to the open position, improving the user experience;

[0025] (2) After the keyboard cover is opened, the gear on the key cover is located at the bottom of the rack slope, which can keep the key cover open stably and will not fall back due to vibration or tilt;

[0026] (3) When the keyboard cover is closed to a certain degree, it will automatically slide to the closed position without manual intervention, which improves the user experience and increases the sense of luxury of the product;

[0027] (4) When the keyboard cover is closed and slides to the damping protrusion position, the damping member applies resistance to the keyboard cover to make the key cover fall slowly, thereby improving the user experience while avoiding accidental injuries to personnel and extending the life of the keyboard cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural view of the present invention;

[0029] Figure 2 It is a structural view of the gear guide and the keyboard slow-down device of the present invention;

[0030] Figure 3 is a structural view of the housing of the present invention;

[0031] Figure 4 is a bottom view of the keyboard cover of the present invention;

[0032] Figure 5 The present invention Figure 3 A partial enlarged view of the middle A;

[0033] Figure 6 The present invention Figure 3 A partial enlarged view of point B in the middle;

[0034] Figure 7 is a structural view of the guide rack of the present invention;

[0035] Figure 8 This is a structural view of the transition arc surface of the present invention;

[0036] Fig. 9 It is a structural view of the clamping protrusion of the present invention;

[0037] Fig.10 is a structural view of the damping member installation location of the present invention;

[0038] Fig.11 It is a structural view of the notch of the present invention;

[0039] Fig.12 It is a structural view of the damping member mounting boss of the present invention;

[0040] Fig.13 It is a structural view of the plug-in boss of the present invention;

[0041] Fig.14 This is a structural view of the guide column support wall of the present invention;

[0042] Fig.15 It is a structural view of the buffer pad described in the present invention.

[0043] Illustration: 1. Keyboard cover, 2. Side panel, 3. Keybed side cover, 4. Gear guide, 5. Keyboard slow-descent device, 6. Shell, 7. Slow-descent bracket, 8. Rear bracket, 9. Rotating shaft, 10. Spindle seat, 11. Transmission gear, 12. Anti-pinch guide column, 13. Guide rack, 14. Guide groove, 15. Notch structure, 16. Transition arc surface, 17. Raised rib structure, 18. Snap-on protrusion, 19. Slow-descent guide groove, 20. Damping element, 21. Torsion spring structure, 22. Torsion spring snap-on protrusion, 23. Notch, 24. Damping protrusion, 25. Damping element mounting boss, 26. Damping oil groove, 27. Auxiliary groove, 28. Plug-in boss, 29. Auxiliary rib, 30. Guide column support wall, 31. Buffer pad. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0045] An embodiment of the present invention relates to an anti-pinch guide structure for a keyboard cover, such as Figure 1 As shown in FIG. 6 , the keyboard cover 1 comprises a keyboard cover 1, a keybed side cover 3 and a side plate 2, the side plates 2 are symmetrically installed on both sides of the side plate 2, the keybed side cover 3 is installed on the front side of the side plate 2, a keyboard cover 1 that moves forward and backward is installed between the two keybed side covers 3 and the two side plates 2, anti-pinch guide columns 12 are installed on both sides of the front end of the keyboard cover 1, transmission gears 11 are installed on both sides of the rear end of the keyboard cover 1, a gear guide 4 is provided on the side of the side plate 2 close to the keyboard cover 1, and a gear guide 4 is installed on the opposite side of the gear guide 4. A guide rack 13 protrudes upward at the rear, and the guide rack 13 is meshed with the transmission gear 11. A slow-descent guide groove 19 with a front end bent downward is provided on the upper part of one side of the keyboard slow-descent device 5 close to the keyboard cover 1, and a notch 23 is provided at the bent end of the slow-descent guide groove 19. A damping member 20 is rotatably installed on the other side of the keyboard slow-descent device 5, and a damping protrusion 24 extending from the notch 23 is provided on the damping member 20, and the anti-pinch guide column 12 is inserted into the slow-descent guide groove 19.

[0046] In the present technical solution, the gear guide 4 and the transmission gear 11 located on both sides of the rear end of the keyboard cover 1 are installed so that the keyboard cover 1 can move forward and backward smoothly. At the same time, the guide rack 13 is used to transmit the transmission gear 11 so that the keyboard cover 1 can run smoothly. A keyboard descending device 5 is provided to guide the keyboard cover 1 to descend slowly. A damping member 20 is provided to support the anti-pinch guide column 12 so that the anti-pinch guide column 12 can descend slowly. A damping protrusion 24 is provided to resist the anti-pinch guide column 12.

[0047] The middle and rear part of the guide rack 13 protrudes upward, so that the guide rack 13 can form a transmission rack with inclined ends. The two ends of the guide rack 13 are in the same horizontal plane, so that the inclination angle of the transmission rack at the rear end is larger, and the inclination angle of the transmission rack at the rear end is smaller. The transmission rack at the rear end can prevent the keyboard cover 1 from sliding off, and the transmission rack at the front end can slow down the movement speed of the keyboard cover 1, making it convenient for the keyboard cover 1 to slide slowly.

[0048] The damping protrusion 24 on the damping member 20 can provide buffering support for the keyboard cover 1. When the keyboard cover 1 slides down, the anti-pinch guide column 12 slides down along the slow-descent guide groove 19. The notch 23 of the slow-descent guide groove 19 can facilitate the protrusion of the damping protrusion 24.

[0049] As a supplement to the present technical solution, a rear bracket 8 is installed on the lower side of the rear end of the keyboard cover 1, and a plurality of spindle seats 10 are evenly installed on the rear bracket 8. A rotating shaft 9 is horizontally installed in the spindle seat 10, and transmission gears 11 are installed on both ends of the rotating shaft 9. In the present technical solution, the spindle seat 10 is provided to facilitate the installation of the rotating shaft 9, and the rotating shaft 9 is installed to drive the transmission gear 11 to run synchronously.

[0050] like Figure 7 and Figure 8 As shown, as a supplement to the present technical solution, a guide groove 14 is provided on the upper side of the guide rack 13, and a guide protrusion inserted into the guide groove 14 is provided on the transmission gear 11. The guide groove 14 and the guide protrusion are provided to ensure stable operation of the keyboard cover 1.

[0051] As a supplement to the present technical solution, the guide groove 14 and the guide rack 13 are parallel as a whole, and a transition arc surface 16 corresponding to the raised portion of the guide rack 13 is provided on the guide groove 14. The transition arc surface 16 is provided to facilitate the smooth operation of the guide protrusion.

[0052] like Fig.15As shown, as a supplement to the present technical solution, buffer pads 31 matching the guide protrusions are installed at both ends of the guide groove 14, and the buffer pads 31 are provided to reduce the noise generated during operation.

[0053] As a supplement to the present technical solution, a notch structure 15 corresponding to the raised portion of the guide rack 13 is provided on the upper side wall of the guide groove 14 , and the notch structure 15 is provided to facilitate the installation of the keyboard cover 1 .

[0054] As a supplement to the present technical solution, a slow-descent bracket 7 is installed on the lower side of the front end of the keyboard cover 1, and anti-pinch guide columns 12 are installed on both sides of the slow-descent bracket 7. A guide sleeve structure is installed on the anti-pinch guide column 12. In the present technical solution, the slow-descent bracket 7 is provided to facilitate the installation of the anti-pinch guide column 12.

[0055] like Fig.10 — Fig.13 As shown, as a supplement to the present technical solution, the keyboard slow-descent device 5 is provided with a damping member mounting boss 25, the damping member mounting boss 25 is provided with a damping oil groove 26, the damping member 20 is provided with a plug-in boss 28 inserted into the damping oil groove 26, and the damping oil groove 26 is filled with damping oil.

[0056] In the present technical solution, a damping member mounting boss 25 is provided to facilitate the installation of the damping member 20, and a damping oil groove 26 is provided to fill the damping oil. When the plug-in boss 28 is inserted into the damping oil groove 26, a damping force can be generated between the damping member 20 and the damping oil groove 26, thereby ensuring that the front end of the keyboard cover 1 can slowly descend.

[0057] The damping oil itself is a non-Newtonian fluid. When an excessive impact force hits the damping element 20, the damping oil can absorb a large amount of the impact force. When the impact force disappears, the weight of the keyboard cover 1 itself will push the damping element 20, and the damping element 20 can rotate slowly, allowing the keyboard cover 1 to slowly descend until the keyboard cover 1 is closed.

[0058] As a supplement to the present technical solution, a circle of auxiliary grooves 27 is provided on the outer side of the damping oil groove 26, and a circle of auxiliary ribs 29 inserted into the auxiliary grooves 27 is provided on the outer side of the plug-in boss 28. In the present technical solution, the auxiliary grooves 27 and the auxiliary ribs 29 are provided to increase the damping force between the damping element 20 and the damping element mounting boss 25.

[0059] As a supplement to the present technical solution, the lower side wall of the slow descent guide groove 19 is a guide column support wall 30, and a part of the support position remains at the position where the notch 23 is set on the guide column support wall 30. When the anti-pinch guide column 12 runs in the slow descent guide groove 19, the guide column support wall 30 always supports the anti-pinch guide column 12.

[0060] As a supplement to the present technical solution, a torsion spring structure 21 is sleeved on the damping member 20, and a torsion spring clamping protrusion 22 is provided on the damping member 20. One end of the torsion spring structure 21 is fixed on the torsion spring clamping protrusion 22, and the other end is fixed on the key base side cover 3.

[0061] In the present technical solution, the torsion spring clamping protrusion 22 is provided to facilitate the installation of the torsion spring structure 21 , and the torsion spring structure 21 is provided to provide secondary support to the damping member 20 to absorb and buffer and avoid excessive vibration.

[0062] like Fig. 9 As shown, as a supplement to the present technical solution, the keyboard slow-descent device 5 is provided with two snap-in protrusions 18 on one side close to the keyboard cover 1, the shell 6 is plugged and installed on the snap-in protrusion 18, and the snap-in protrusion 18 is provided with a rib structure 17 extending upward.

[0063] Example

[0064] When the keyboard cover 1 is opened, the player pushes the keyboard cover 1, and the anti-pinch guide columns 12 and the transmission gear 11 on both sides of the keyboard cover 1 can start to stabilize the movement of the keyboard cover 1. When the transmission gear 11 rotates to the highest position of the guide rack 13, the self-gravity of the keyboard cover 1 will push the keyboard cover 1, so that the transmission gear 11 can move backward along the inclined part of the rear end of the guide rack 13 until the keyboard cover 1 is fully opened.

[0065] When the keyboard cover 1 is in the storage state, once vibration occurs, the keyboard cover 1 will move. Since the rear end of the guide rack 13 is an inclined rack, the keyboard cover 1 will not slide off easily.

[0066] When the keyboard cover 1 needs to be closed, the player only needs to pull the keyboard cover 1 forward. When the transmission gear 11 passes the highest position of the guide rack 13, the keyboard cover 1's own gravity will move the keyboard cover 1 forward until the anti-pinch guide column 12 on the keyboard cover 1 contacts the damping protrusion 24 of the damping member 20. First, the torsion spring structure 21 will absorb a large amount of impact force of the keyboard cover 1. At the same time, the impact force exceeding the torsion spring structure 21 will be absorbed by the damping oil between the damping member 20 and the damping member mounting protrusion 25, avoiding the impact between the keyboard cover 1 and the key base, and also avoiding the keyboard cover 1 directly pinching the fingers. In addition, since the damping oil is a non-Newtonian fluid, when the impact disappears, its own damping effect will deteriorate, and the damping member 20 will be slowly pushed by the weight of the keyboard cover 1, so that the keyboard cover 1 can be slowly closed.

Claims

1. An anti-pinch guide structure for a keyboard cover, characterized in that: The keyboard comprises a keyboard cover (1), a keybed side cover (3) and a side plate (2), wherein the side plates (2) are symmetrically mounted on both sides of the side plate (2), the keybed side cover (3) is mounted on the front side of the side plate (2), a keyboard cover (1) that moves forward and backward is mounted between the two keybed side covers (3) and the two side plates (2), anti-pinch guide columns (12) are mounted on both sides of the front end of the keyboard cover (1), transmission gears (11) are mounted on both sides of the rear end of the keyboard cover (1), a gear guide (4) is arranged on the side of the side plate (2) close to the keyboard cover (1), and the gear guide (4) is mounted on the opposite side A guide rack (13) with a rear portion protruding upward is provided, and the guide rack (13) is meshed with a transmission gear (11); a slow-descent guide groove (19) with a front end bent downward is provided on an upper portion of a side of the keyboard slow-descent device (5) close to the keyboard cover (1); a notch (23) is provided at the bent end of the slow-descent guide groove (19); a damping member (20) is rotatably mounted on the other side of the keyboard slow-descent device (5); a damping protrusion (24) extending from the notch (23) is provided on the damping member (20); and the anti-pinch guide column (12) is inserted into the slow-descent guide groove (19).

2. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: A rear bracket (8) is installed on the lower side of the rear end of the keyboard cover (1), and a plurality of main shaft seats (10) are evenly installed on the rear bracket (8). A rotating shaft (9) is installed transversely in the main shaft seat (10), and transmission gears (11) are installed on both ends of the rotating shaft (9).

3. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: A guide groove (14) is arranged on the upper side of the guide rack (13), and a guide protrusion inserted into the guide groove (14) is arranged on the transmission gear (11).

4. The anti-pinch guide structure for a keyboard cover according to claim 3, characterized in that: Buffer pads (31) matching the guide protrusions are installed in both ends of the guide groove (14).

5. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: A slow-descent bracket (7) is installed at the lower front end of the keyboard cover (1), anti-pinch guide columns (12) are installed on both sides of the slow-descent bracket (7), and a guide sleeve structure is installed on the anti-pinch guide columns (12).

6. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: The keyboard slow-descent device (5) is provided with a damping member mounting boss (25), the damping member mounting boss (25) is provided with a damping oil groove (26), the damping member (20) is provided with an inserting boss (28) inserted into the damping oil groove (26), and the damping oil groove (26) is filled with damping oil.

7. The anti-pinch guide structure for a keyboard cover according to claim 6, characterized in that: A circle of auxiliary grooves (27) is arranged on the outer side of the damping oil groove (26), and a circle of auxiliary ribs (29) inserted into the auxiliary grooves (27) is arranged on the outer side of the plug-in boss (28).

8. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: The lower side wall of the slow-descent guide groove (19) is a guide post support wall (30), and a portion of the support position remains at the position where the notch (23) is set on the guide post support wall (30). When the anti-pinch guide post (12) runs in the slow-descent guide groove (19), the guide post support wall (30) always supports the anti-pinch guide post (12).

9. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: The damping member (20) is sleeved with a torsion spring structure (21), and the damping member (20) is provided with a torsion spring clamping protrusion (22). One end of the torsion spring structure (21) is fixed to the torsion spring clamping protrusion (22), and the other end is fixed to the key base side cover (3).

10. The anti-pinch guide structure for a keyboard cover according to claim 1, characterized in that: The keyboard slow-descent device (5) is provided with two clamping protrusions (18) on one side close to the keyboard cover (1), a housing (6) is plugged and installed on the clamping protrusions (18), and a convex rib structure (17) extending upward is provided on the clamping protrusions (18).

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