Folding table
By introducing an anti-slip mechanism into the transmission part of the folding table, the existing folding table is solved, and the stable rotation and sharing functions of the table are realized.
Patent Information
- Application Number
- CN202311759644.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-06-20
AI Technical Summary
The hinge structure of the existing folding table is simple, which makes the panel unable to be completely hidden and cannot be expanded anywhere, giving the user an unstable feeling. At the same time, existing folding tables are difficult to realize the desktop sharing function and cannot meet the needs of multiple passengers to share the desktop.
A folding table including a base, a tabletop and a transmission is designed, with an anti-slip mechanism in the transmission, allowing the tabletop to rotate about an axis in the deployed position and provide stable buffering during the folding and deployment process. The anti-slip mechanism includes an anti-slip unit that provides appropriate friction torque through a combination of a ball and an anti-slip pad to ensure stable rotation of the tabletop.
The stable rotation and sharing function of the desktop is realized, avoiding the feeling of "swinging" and unstable, and at the same time meeting the needs of multiple passengers to share the desktop.
Smart Images

Figure CN120171399A_ABST
Abstract
Description
Technical Field
[0001] This application relates to a folding table. Background Art
[0002] In vehicles such as cars, trains, airplanes, etc., folding tables are usually configured. The folding table can usually be unfolded and folded up and includes a panel, and is switched between the unfolded position and the folded-up position through a hinge. When the folding table is unfolded, the panel is placed horizontally in front of the user so that the user can use the panel for dining, resting, reading, etc.; when the folding table is folded up, the panel is hidden in the seat or the car door to reduce the occupied space.
[0003] The hinge structure of the existing folding table is usually relatively simple. For example, it only includes one or two rotating shafts, so that the panel can only rotate and move within a limited range. Especially when the panel is in the folded-up position, it cannot be completely hidden in the seat or the car door. Moreover, the existing folding table usually relies on a bracket to fix the panel in the unfolded position, so that the panel is limited by the structure of the bracket and can only be unfolded at a predetermined position, and cannot be unfolded at any position according to the needs of the user. In addition, the hinge of the existing folding table cannot provide an appropriate frictional torque, so it gives the user a feeling of "wobbling" and "instability".
[0004] In some usage environments, it is desired to provide a folding table with a sharing function, in which the tabletop can rotate between adjacent seats for multiple passengers to share the tabletop. For this purpose, an additional rotating shaft needs to be added to the folding table to meet the sharing requirements. This poses a new challenge to the stability of the hinge structure of the folding table.
[0005] Therefore, there is a need to provide a new folding table whose hinge structure allows the sharing function of the tabletop and provides good stability. Summary of the Invention
[0006] A folding table according to the present application includes: a base; a tabletop; and a transmission part connected between the base and the tabletop, allowing the tabletop to move from a folded position to an unfolded position, and allowing the tabletop to rotate around an axis in the unfolded position; wherein, an anti-slip mechanism is provided in the transmission part to allow the stable rotation of the tabletop.
[0007] In one embodiment, the transmission part includes: a first arm rotatably connected to the base around a first axis; a second arm rotatably connected to the first arm around a second axis, and the tabletop is rotatably connected to the second arm around a third axis; the anti-slip mechanism includes an anti-slip unit, the anti-slip unit is at least partially disposed in the first arm and can abut against the second arm; wherein, the second arm can also rotate relative to the first arm around a fourth axis intersecting the second axis, and the anti-slip unit applies friction to the second arm when the second arm rotates around the second axis and the fourth axis.
[0008] In one embodiment, the anti-slip unit includes: an anti-slip pad disposed in the first arm and having a concave surface facing the second arm; and a ball disposed in the concave surface of the anti-slip pad and abutting against the second arm to roll as the second arm rotates.
[0009] In one embodiment, the ball is arranged such that it applies a greater frictional force to the second arm when the second arm is in the deployed position than when the second arm is in the folded position.
[0010] In one embodiment, the second arm is provided with a cam at the connection to the first arm, and when the second arm is in the deployed position, the cam abuts against the ball so as to apply a braking effect to the second arm when the second arm is in the deployed position.
[0011] In one embodiment, the anti-slip unit further includes: a rod-shaped member disposed in the first arm and capable of sliding along the first arm, the rod-shaped member having a head facing the second arm, and the anti-slip pad is disposed in the head; and a spring disposed between the rod-shaped member and the first arm and biasing the rod-shaped member towards the second arm.
[0012] In one embodiment, the rod-shaped member has a tail facing the base, and the tail forms or is fixed to a joint, and when the first arm is in the deployed position, the joint is inserted into the base to prevent relative rotation between the first arm and the base.
[0013] In one embodiment, the second arm is provided with a cam at the connection to the first arm, and when the second arm is in the deployed position, the cam abuts against the rod-shaped member through the ball, causing the rod-shaped member to move towards the base and the joint to be inserted into the base, and when the second arm disengages from the deployed position, the rod-shaped member moves away from the base under the action of the spring and the joint disengages from the base.
[0014] In one embodiment, the head has a non-circular profile such that the rod-shaped member is torsionally disposed in the first arm, and the head has a receiving portion for holding the ball.
[0015] In one embodiment, the first arm includes an upper arm and a lower arm, the upper arm and the lower arm are respectively rotatably connected to the base and the second arm; the anti-slip unit further includes an anti-slip shaft, the anti-slip shaft is fixed to one of the upper arm and the lower arm, and inserted into the other of the upper arm and the lower arm to allow the upper arm and the lower arm to rotate relative to each other about the fourth axis.
[0016] In one embodiment, the rod-shaped member is received in the hollow portion of the anti-slip shaft and is movable relative to the anti-slip shaft along the fourth axis.
[0017] In one embodiment, a circumferential groove is provided on the outer periphery of the anti-slip shaft, and the anti-slip unit further includes a positioning block, the positioning block engages with the second arm and slides along the circumferential groove to define the relative rotation range between the upper arm and the lower arm.
[0018] In one embodiment, the spring is at least partially disposed in the anti-slip shaft and abuts between the rod-shaped member and the anti-slip shaft.
[0019] In one embodiment, the anti-slip unit includes at least one torque element disposed between the anti-slip shaft and the other of the upper arm and the lower arm.
[0020] In one embodiment, the second arm rotates within a range of 180° about the fourth axis so as to switch between a first shared position and a second shared position.
[0021] In one embodiment, the second arm is arranged such that when the first arm is in a vertical position, the second arm rotates about the fourth axis in a horizontal plane.
[0022] In one embodiment, the transmission part includes: a first arm rotatably connected to the base about a first axis; a second arm rotatably connected to the first arm about a second axis; a third arm, the tabletop is rotatably connected to the third arm about a third axis, and the third arm is rotatably connected to the second arm about a fifth axis; wherein, the first axis and the second axis intersect with each other, the second axis and the third axis intersect with each other, and the third axis and the fifth axis are parallel to each other.
[0023] In one embodiment, one of the second arm and the third arm is provided with a first rotating disk, and the other is provided with a first rotating groove, and the first rotating disk is embedded in the first rotating groove; and one of the second arm and the third arm is provided with a first limiting protrusion, and the other is provided with a first limiting recess, and the first limiting protrusion is inserted into the first limiting recess to define the mutual rotation range between the second arm and the third arm.
[0024] In one embodiment, one of the third arm and the tabletop is provided with a second rotating disk, and the other is provided with a second rotating groove, and the second rotating disk is embedded in the second rotating groove; and one of the third arm and the tabletop is provided with a second limiting protrusion, and the other is provided with a second limiting recess, and the second limiting protrusion is inserted into the second limiting recess to define the mutual rotation range between the second arm and the third arm.
[0025] In one embodiment, at least one torque element is provided around the first axis, the second axis, the third axis, and the fifth axis, and the anti-slip mechanism includes the at least one torque unit.
[0026] In one embodiment, the transmission part further includes: an auxiliary arm, with two ends respectively connected to the first arm and the second arm. When the folding table is in the unfolded position, the first arm, the second arm, and the auxiliary arm form a triangular configuration. When the folding table is in the folded position, the first arm, the second arm, and the auxiliary arm extend in the same direction.
[0027] In one embodiment, the transmission part further includes: a carriage, fixed to the first arm and extending along the first arm; and a slider, inserted into the carriage and guided to slide by the carriage; wherein, one end of the auxiliary arm is pivotally connected to the slider, and the other end of the auxiliary arm is pivotally connected to the second arm.
[0028] In one embodiment, when the folding table is in the folded position, the auxiliary arm, the carriage, and the slider are all accommodated in the first arm and the second arm.
[0029] In one embodiment, the third arm rotates within a range of 180° around the fifth axis so as to switch between a first shared position and a second shared position.
[0030] In one embodiment, the third arm is arranged such that when the first arm is in the vertical position, the third arm rotates around the fifth axis in a horizontal plane.
[0031] In one embodiment, the tabletop includes: a first half; a second half; and a hinge; the first half and the second half are rotatably connected to each other by the hinge, and the lower surface of the first half is rotatably connected to the transmission part.
[0032] In one embodiment, the tabletop further includes: a functional part, the upper surface of the second half is connected to the functional part, and the functional part is arranged to rotate relative to the second half. Brief Description of the Drawings
[0033] Hereinafter, embodiments of the present application will be described in further detail with reference to the accompanying drawings, in which:
[0034] Figures 1A to 1F are the front view, rear view, left view, right view, top view, and bottom view of the folding table according to the first embodiment of the present application, where the folding table is in the fully folded position;
[0035] Figure 1G and Figure 1H are perspective views of the folding table at different angles, where the folding table is in the fully unfolded position;
[0036] Figure 2 is an exploded perspective view of the folding table;
[0037] Figure 3 is an exploded perspective view of the anti-slip unit of the folding table;
[0038] Figure 4 is a perspective view of the base, first arm, and anti-slip unit of the folding table;
[0039] Figure 5 is a partially cut-away perspective view of the first arm and the anti-slip unit;
[0040] Figure 6 is an exploded perspective view of the anti-slip pin and anti-slip ball of the anti-slip unit;
[0041] Figure 7 is an exploded perspective view of the second arm of the folding table;
[0042] Figure 8 is an exploded perspective view of the functional part of the folding table;
[0043] Figure 9A and Figure 9B are perspective views of the folding table, where the second arm is in the upright position, Figure 9B and part of the first arm and the second arm are removed to show the internal structure;
[0044] Figure 10A and Figure 10B are perspective views of the folding table, where the second arm is in the horizontal position, Figure 10BThe first arm and the second arm are partially removed in [Figure 0] to show the internal structure;
[0045] Figure 11A and Figure 11B is a perspective view of the folding table, where the second arm is in the horizontal position and rotated to the first sharing position, Figure 11B The first arm is partially removed in [Figure 8] to show the internal structure;
[0046] Figure 12A and Figure 12B is a perspective view of the folding table, where the second arm is in the horizontal position and rotated to the second sharing position, Figure 12B The first arm is partially removed in [Figure 16] to show the internal structure;
[0047] Figure 13A Shows a partial enlarged view of the second arm and the anti-slip shaft in the first sharing position;
[0048] Figure 13B Shows a partial enlarged view of the second arm and the anti-slip shaft in the second sharing position;
[0049] Figure 14 Shows a perspective view of the folding table, where the functional part is in the closed position;
[0050] Figure 15 Shows a perspective view of the folding table. Where the functional part is in the open position;
[0051] Figure 16 Shows a partial enlarged view of the functional part;
[0052] Figures 17A to 17F Are the front view, rear view, front view, right view, top view, and bottom view of the folding table according to the second embodiment of the present application;
[0053] Figure 17G and Figure 17H Are perspective views of the folding table at different angles;
[0054] Figure 18 Is an exploded perspective view of the folding table;
[0055] Figure 19 Is a perspective view of the second arm of the folding table;
[0056] Figure 20A and 20B Are perspective views of the third arm of the folding table at different angles;
[0057] Figure 21A and 21B Are perspective views of the first table board of the folding table at different angles;
[0058] Figure 22is a perspective view of the fully folded position of the folding table;
[0059] Figures 23 to 25 is a perspective view of the partially unfolded position of the folding table;
[0060] Figure 26 is a perspective view of the fully unfolded position of the folding table, where the tabletop is in the first sharing position;
[0061] Figure 27 is a perspective view of the fully unfolded position of the folding table, where the tabletop is between the first sharing position and the second sharing position;
[0062] Figure 28 is a perspective view of the fully unfolded position of the folding table, where the tabletop is in the second sharing position;
[0063] Figure 29A 、 Figure 29B 、 Figure 29C are respectively the perspective view, top view, and front view of the fully folded position of the folding table, Figure 29D is along Figure 29B the sectional view taken along the A - A line in
[0064] Figure 30A 、 Figure 30B 、 Figure 30C are respectively the perspective view, top view, and front view of the partially unfolded position of the folding table, Figure 30D is along Figure 30B the sectional view taken along the B - B line in
[0065] Figure 31A 、 Figure 31B 、 Figure 31C are respectively the perspective view, top view, and front view of another partially unfolded position of the folding table, Figure 31D is along Figure 31B the sectional view taken along the C - C line in Figure 31E and Figure 31F are respectively the sectional views taken along the D - D line and E - E line in Figure 31C ;
[0066] Figure 32A 、 Figure 32B 、 Figure 32C are respectively the perspective view, top view, and front view of another partially unfolded position of the folding table, Figure 32D is along Figure 32B the sectional view taken along the F - F line in Figure 32E and Figure 32F are respectively the sectional views taken along the G - G line and H - H line in Figure 32C ;
[0067] Figure 33A 、Figure 33B , Figure 33C are respectively the perspective view, top view, and front view of the folding table in its fully unfolded position, Figure 33D is a sectional view taken along the I-I line in Figure 33B , Figure 33E and Figure 33F are respectively sectional views taken along the J-J line and K-K line in Figure 32C .
[0068] List of reference numerals
[0069] 1 Folding table
[0070] 100 First arm
[0071] 110 Upper arm
[0072] 120 Lower arm
[0073] 200 Second arm
[0074] 210 Cam
[0075] 210a Contact surface
[0076] 220 Ball
[0077] 230 Spring
[0078] 250 First rotating disk
[0079] 251 First limiting protrusion
[0080] 300 Anti-slip unit
[0081] 310 Anti-slip shaft
[0082] 311 Hollow part
[0083] 312 Circumferential groove
[0084] 313 Mounting hole
[0085] 320 Rod-shaped part
[0086] 321 Rod part
[0087] 322 Head
[0088] 323 Receiving part
[0089] 330 Ball
[0090] 340 Anti-slip pad
[0091] 350 Joining part
[0092] 360 Spring
[0093] 370 Positioning Block
[0094] 400 Base
[0095] 500 Desktop
[0096] 510 First Half
[0097] 511 Second Rotating Disk
[0098] 512 Second Limit Depression
[0099] 520 Second Half
[0100] 530 Hinge
[0101] 540 Functional Part
[0102] 600 Auxiliary Arm
[0103] 610 Carriage
[0104] 620 Slide Block
[0105] 630 Fixed Bracket
[0106] 700 Third Arm
[0107] 710 First Rotating Groove
[0108] 711 First Limit Depression
[0109] 720 Second Rotating Groove
[0110] 721 Second Limit Projection
[0111] 101 Torque Element
[0112] 102 Bolt
[0113] 103 Gasket
[0114] 104 Collar
[0115] 106 Rotating Shaft
[0116] 107 Cap
[0117] 108 Pin
[0118] 109 Cover
[0119] A1 First Axis
[0120] A2 Second Axis
[0121] A3 Third Axis
[0122] A4 Fourth Axis
[0123] Axis 5, the fifth axis Detailed implementation manners
[0124] Although the present invention is illustrated and described with reference to specific embodiments, the present invention should not be limited to the details shown. Rather, various modifications can be made to these details within the scope of the equivalents of the claims and without departing from the present invention.
[0125] The directional descriptions such as "front", "rear", "upper", and "lower" involved herein are only for convenience of understanding, and the present invention is not limited to these directions but can be adjusted according to the actual situation.
[0126] Refer to Figures 1A to 2 The first embodiment of the folding table 1 according to the present application is described as a whole. The folding table 1 of the first embodiment includes a base 400, a tabletop 500, and a transmission part. The base 400 is mounted on a vehicle such as an automobile, the tabletop 500 is for a user to place items, and the transmission part is connected between the base 400 and the tabletop 500 to allow the whole folding table 1 to be in Figures 1A to 1F the folding position shown and Figure 1G and Figure 1H and the unfolded position shown. Moreover, the transmission part also allows the tabletop 500 to rotate around a vertical axis in the unfolded position, that is, between Figures 10A to 10B the first sharing position shown and Figure 11A only Figure 11B the second sharing position shown.
[0127] An anti-slip mechanism is provided in the transmission part to allow stable rotation of the tabletop 500. The transmission part is a collection of multiple components. In the first embodiment, the transmission part includes a first arm 100, a second arm 200, and an anti-slip unit 300. In the first embodiment, the anti-slip mechanism includes the anti-slip unit 300.
[0128] The first arm 100 is rotatably connected to the base 400 around a first axis A1. The second arm 200 is rotatably connected to the first arm 100 around a second axis A2, and the tabletop 500 is rotatably connected to the second arm 200 around a third axis A3. The anti-slip unit 300 is at least partially disposed in the first arm 100 and can abut against the second arm 200. The second arm 200 can also rotate around the first arm 100 around a fourth axis A4 that intersects the second axis A2, and the anti-slip unit 300 applies friction to the second arm 200 when the second arm 200 rotates around the second axis A2 and the fourth axis A4.
[0129] The folding table 1 of the present application further includes assembled parts such as a torque element 101, a bolt 102, a gasket 103, a collar 104, a rotating shaft 106, a cap 107, a pin 108, and a cover 109. These assembled parts can be provided at each rotating joint of the folding table. Among them, the rotating shaft 106 is inserted at the joints where the first arm 100, the second arm 200, the base 400, and the tabletop 500 are connected to each other. The torque element 101 is disposed around the rotating shaft 106 to generate stable buffering when the first arm 100, the second arm 200, and the tabletop 500 rotate. The bolt 102 is used to fix the first arm 100, the second arm 200, the base 400, the tabletop 500, etc. The gasket 103 is used to fix the collar 104 and reduce local pressure. The collar 104 is used to mount the pin 108. The cap 107 is used for axial fixation of the assembled parts and / or providing a keyway. The pin 108 is used to prevent the rotation of the torque element 101. The cover 109 is used for surface finishing. The specific forms and setting manners of these assembled parts can refer to the prior art in the art, and the specific description thereof is omitted herein.
[0130] Referring to Figures 3 to 5 Describe the anti-slip unit 300 according to the first embodiment. The anti-slip unit 300 includes an anti-slip shaft 310, a rod-shaped member 320, a ball 330, an anti-slip pad 340, a joint member 350, a spring 360, and a positioning block 370.
[0131] The first arm 100 includes two parts that can rotate relative to each other around the fourth axis A4. In this embodiment, they are the upper arm 110 and the lower arm 120. The upper arm 110 and the lower arm 120 are respectively rotatably connected to the base 400 and the second arm 200. In other embodiments, the first arm 100 may also include an inner cylinder and an outer cylinder, etc., as long as they can rotate relative to each other.
[0132] The anti-slip shaft 310 is fixed to one of the upper arm 110 and the lower arm 120 and inserted into the other of the upper arm 110 and the lower arm 120 to allow the upper arm 110 and the lower arm 120 to rotate relative to each other around the fourth axis A4. In this embodiment, the anti-slip shaft 310 is fixed to the lower arm 120. More specifically, the lower end of the anti-slip shaft 310 is inserted into the lower arm 120, and a plurality of bolts 102 pass through the lower arm 120 and are connected to the mounting holes 313 of the anti-slip shaft 310, thereby fixing the anti-slip shaft 310 inside the lower arm 120. The upper end of the anti-slip shaft 310 is inserted into the upper arm 110 and can rotate relative to the upper arm 110.
[0133] The upper end of the anti-slip shaft 310 is provided with a circumferential groove 312, which is formed, for example, by cutting off an arc-shaped portion from the outer edge of the end of the anti-slip shaft 310, thereby forming a groove that is open upward and radially outward. In this embodiment, the circumferential groove 312 extends 180°, and in other embodiments, it may also extend at different angles, such as 60°, 240°, etc. The anti-slip unit 300 further includes a positioning block 370 provided at the upper end of the anti-slip shaft 310. The positioning block 370 may be an independent component and engage with the second arm 200 to rotate around the fourth axis A4 together with the second arm 200, or may be integrally formed with the second arm 200. As the upper arm 110 rotates, the positioning block 370 slides circumferentially in the circumferential groove 312 to define the rotation range of the upper arm 110 relative to the lower arm 120, and this rotation range corresponds to the extension angle of the circumferential groove 312, which will be described in detail below. In an embodiment where the anti-slip shaft 310 is fixed to the upper arm 110, the positioning block 370 may also be provided in the lower arm 120 to rotate together with the lower arm 120, and at this time, the circumferential groove 312 is provided in the upper arm 110.
[0134] The anti-slip unit 300 includes at least one torque element 101. In this embodiment, the anti-slip shaft 310 is fixed to the lower arm 120, so the torque element 101 is provided between the anti-slip shaft 310 and the upper arm 110 to provide a frictional torque when the anti-slip shaft 310 and the upper arm 110 rotate relative to each other. In an embodiment where the anti-slip shaft 310 is provided on the upper arm 110, the torque element 101 is correspondingly provided between the anti-slip shaft 310 and the lower arm 120.
[0135] The torque element 101 is, for example, provided as a sickle-shaped sheet member. It has a hook portion sleeved on the anti-slip shaft 310 and a handle portion extending from the hook portion. The pin 108 abuts against the handle portion of the torque element 101 to prevent the torque element 101 from rotating relative to the lower arm 120.
[0136] In this embodiment, two torque elements 101 are arranged opposite to each other such that the openings of their respective sickle shapes face each other. In this way, the asymmetries of the two torque elements 101 cancel each other out, thereby providing a substantially constant frictional torque. In other embodiments, friction elements with a symmetric shape may also be used, in which case it is not necessary to arrange multiple friction elements opposite to each other.
[0137] The anti-slip shaft 310 is provided with a hollow portion 311 penetrating vertically. The rod portion 321 of the rod-shaped member 320 is received in the hollow portion 311 of the anti-slip shaft 310 and can move relative to the anti-slip shaft 310 along the fourth axis A4. The rod-shaped member 320 is arranged to protrude from both vertical ends of the anti-slip shaft 310. Therefore, the rod-shaped member 320 is arranged in the first arm 100 and can slide along the first arm 100. The rod-shaped member 320 has a head 322 facing the second arm 200. A spring 360 is arranged between the rod-shaped member 320 and the anti-slip shaft 310 and biases the rod-shaped member 320 towards the second arm 200, that is, biases it upwards, so that the rod-shaped member 320 presses the anti-slip pad 340 and the ball 330 against the second arm 200. The rod-shaped member 320 has a tail facing the base 400, and the tail forms or is fixed to a joint 350. The joint 350 can be a nut fixed to the tail or a diameter-increased portion formed at the tail. When the first arm 100 is in the deployed position, the joint 350 is inserted into the base 400 to prevent relative rotation between the first arm 100 and the base 400, which will be described in detail later.
[0138] With reference to Figure 6 , the anti-slip pad 340 is arranged in the head 322 of the rod-shaped member 320, that is to say, the anti-slip pad 340 is arranged in the first arm 100 and has a concave surface facing the second arm 200. In other embodiments, the anti-slip pad 340 can be formed as a part of the rod-shaped member 320.
[0139] The concave surface of the anti-slip pad 340 can have a curvature close to that of the ball 330. The ball 330 is arranged in the concave surface of the anti-slip pad 340 and abuts against the second arm 200 to roll as the second arm 200 rotates. Because the concave surface and the ball 330 have a close curvature, the ball 330 is held in the anti-slip pad 340 during the rolling process. The anti-slip pad 340 can be made of a friction material such as rubber. Therefore, when the ball 330 rolls with the second arm 200, a frictional force is generated between the ball 330 and the anti-slip pad 340 to achieve an anti-slip effect.
[0140] In addition, the ball 330 has a braking function on the second arm 200. Specifically, a cam 210 is provided at the connection of the second arm 200 to the first arm 100. When the second arm 200 rotates to the deployed position, the cam 210 protrudes towards the direction of the ball 330, thus pressing down the ball 330 and the rod-shaped member 320 (see Figure 13A , Figure 13B) At this time, the spring 360 disposed between the rod-shaped member 320 and the anti-slip shaft 310 is compressed, such that the ball 330 is subjected to a greater biasing force, thereby increasing the frictional force between the ball 330 and the second arm 200. As a result, the second arm 200 is subjected to a greater frictional force from the ball 330 at the deployed position, and thus is not easily disengaged from the deployed position. Therefore, the ball 330 achieves a braking effect. In other embodiments, the cam 210 may also be replaced with a lever or a magnetic attraction structure, etc., as long as it can apply a greater pressure to the ball 330 when the second arm 200 is in the deployed position.
[0141] With reference to Figure 2 , as described above, the second arm 200 can rotate relative to the first arm 100 about the second axis A2 and the fourth axis A4. More specifically, the second arm 200 can rotate relative to the upper arm 110 of the first arm 100 about the second axis A2, and the second arm 200 can rotate with the upper arm 110 about the fourth axis A4 relative to the lower arm 120. In Figure 2 the position shown, the second axis A2 extends longitudinally, and the fourth axis A4 extends vertically. However, it should be understood that the folding table 1 of the present application has multiple degrees of freedom, and thus the directions of the second axis A2 and the fourth axis A4 may change during the conversion of the folding table 1.
[0142] The second axis A2 and the fourth axis A4 intersect at an angle, for example, perpendicular to each other. Therefore, the second arm 200 can rotate about two different axes. Thanks to the anti-slip unit 300 of the present application, when the second arm 200 rotates about any axis, the ball 330 can stably abut against the second arm 200, thereby providing a stable anti-slip and buffering effect to the second arm 200.
[0143] The head 322 has a non-circular profile, such that the rod-shaped member 320 is torsionally disposed in the first arm 100. In other embodiments, the rod-shaped member 320 may also be torsionally disposed in the anti-slip shaft 310, that is, it does not rotate with the first arm 100 about the fourth axis A4. The head 322 has a receiving portion 323 for holding the ball 330. For example, the diameter of the receiving portion 323 at the top end may be slightly smaller than the diameter of the ball 330, such that the ball 330 is difficult to disengage from the receiving portion 323.
[0144] In other embodiments, the anti-slip shaft 310 may not be provided, and instead, the upper arm 110 and the lower arm 120 may be rotatably connected through a sliding mechanism such as a chute. The rod-shaped member 320 may also not be provided, and instead, the spring 360 may be directly abutted against the bottom surface of the anti-slip pad 340.
[0145] With reference to Figure 7, the second arm 200 is generally rod-shaped and is provided with a cam 210 at the connection to the first arm 100. This cam 210 is used to operate the vertical movement of the rod-shaped member 320, which will be described in detail below. In addition, the second arm 200 is provided with an axial hole near the end that engages with the tabletop 500 (specifically, on one side of the rotation center of the tabletop 500). A ball 230 and a spring 220 are disposed in this axial hole. The spring 220 presses the ball 230 against the lower surface of the tabletop 500, thereby providing a stable buffering effect on the tabletop 500. A bolt 102 is fixed to the through-hole from the side facing away from the tabletop 500 to hold the spring 220 and the ball 230.
[0146] Refer to Figure 8 to describe the specific structure of the tabletop 500. The tabletop 500 includes a first half 510, a second half 520, a hinge 530, and a functional part 540.
[0147] The first half 510 and the second half 520 have substantially the same shape, for example, both are rectangular. The first half 510 and the second half 520 are rotatably connected to each other by the hinge 530. The lower surface of the first half 510 is rotatably connected to the upper surface of the second arm 200 (see Figure 2 ), such that the tabletop 500 can rotate relative to the second arm 200 about a third axis A3 (see Figure 3 ).
[0148] The first half 510 and the second half 520 can be folded together to reduce the occupied space, or can be unfolded to form a complete tabletop 500 (see Figures 11A to 12B ).
[0149] The upper surface of the second half 520 is connected to the functional part 540. In this embodiment, the functional part 540 is a mirror and is arranged to rotate relative to the second half 520. Thus, the functional part 540 can be embedded into the upper surface of the second half 520 to reduce the occupied space, or can be erected from the upper surface of the second half 520 for use (see Figure 16 ).
[0150] Refer to Figures 1A to 1F and Figures 9A to 16 to describe the operation of the folding table 1 according to the first embodiment.
[0151] Starting from the fully folded position shown in Figures 1A to 1F , the user rotates the first arm 100 relative to the base 400 such that the folding table 1 reaches the position shown in Figures 9A to 9B . In the positions shown in Figure 9A and Figure 9B , the first arm 100 rotates to extend vertically, and the second arm 200 and the tabletop 500 also rise with the first arm 100.
[0152] Starting fromFigure 9A and Figure 9B Starting from the position shown in Figure 9B , the user rotates the second arm 200 relative to the first arm 100 about the second axis A2 such that the folding table 1 reaches Figure 10A and Figure 10B the position shown in Figure 10B . At this time, the first arm 100 extends vertically, the second arm 200 rotates to extend longitudinally, and the tabletop 500 rotates with the second arm 200 to extend longitudinally. At this time, the first arm 100 and the second arm 200 are in the deployed position.
[0153] Referring to Figure 10B , when the second arm 200 is in the deployed position, the cam 210 of the second arm 200 abuts against the rod-shaped member 320 through the ball 330, such that the rod-shaped member 320 moves towards the base 400 and the engaging member 350 is inserted into the base 400. At this time, the rod-shaped member 320 prevents the first arm 100 from rotating relative to the base 400, that is, locks the first arm 100 in the deployed position, which is beneficial to the stability of the folding table 1. Referring to Figure 9B , when the second arm 200 disengages from the deployed position, the rod-shaped member 320 moves away from the base 400 under the action of the spring 360 and the engaging member 350 disengages from the base 400. At this time, the rod-shaped member 320 unlocks the rotation of the first arm 100 relative to the base 400.
[0154] As Figure 9B and Figure 10B shown, during the rotation of the second arm 200 relative to the first arm 100 about the second axis A2, the ball 330 of the anti-slip unit 300 always abuts against the second arm 200, thereby providing a stable buffering effect.
[0155] Starting from Figure 10A and Figure 10B the position shown in Figure 10B , the user rotates the second half 520 relative to the first half 510 of the tabletop 500, thereby unfolding the tabletop 500 to reach Figure 11A and Figure 11B the fully unfolded position shown in Figure 11B .
[0156] Starting from Figure 11A and Figure 11B the position shown in Figure 11B , the user can rotate the second arm 200 relative to the first arm 100 (specifically the upper arm 110) about the fourth axis A4 such that the second arm 200 and the tabletop 500 rotate from Figure 11A and Figure 11B the first sharing position shown in Figure 11B to Figure 12A and Figure 12B the second sharing position shown in Figure 12B .
[0157] Referring to Figure 13A and Figure 13B, which respectively show partial enlarged views of the second arm 200 and the anti-slip shaft 310 in the first sharing position and the second sharing position. During the rotation of the second arm 200 around the fourth axis A4, the ball 330 of the buffer unit always abuts against the second arm 200, thereby providing a stable buffering effect. The cam 210 of the second arm 200 can be formed to have an abutting surface 210a. When the second arm 200 rotates to the deployed position, the abutting surface 210a abuts against the top end of the positioning member 370, thereby holding the second arm 200 in the deployed position. When the second arm 200 rotates between the first sharing position and the second sharing position shown in Figure 13A and Figure 13B , the abutting surface 210a remains in abutment against the top end of the positioning member 370, so that the second arm 200 is stably held in the deployed position and provides a supporting force to the tabletop 500.
[0158] As shown above, the upper arm 110 rotates as the second arm 200 rotates around the fourth axis A4, while the lower arm 120 and the anti-slip shaft 310 do not rotate with the second arm 200. Therefore, the positioning block 370 joined to the second arm 200 rotates together with the second arm 200, and thus slides along the circumferential groove 312 of the anti-slip shaft 310. The extension angle range of the circumferential groove 312 defines the rotation range of the positioning block 370, and thus also defines the rotation range of the upper arm 110 and the second arm 200. In this embodiment, the rotation range is designed to be 180°, that is, it rotates between the first sharing position and the second sharing position opposite to each other. In other embodiments, the rotation range of the second arm 200 can be set to other angles, such as 90°, 120°, 150°, 240°, 270°, etc.
[0159] In addition, it should be understood that the user does not have to strictly follow the Figures 9A to 12B sequence to unfold the folding table 1. In particular, the user can rotate the second arm 200 around the fourth axis A4 at any time.
[0160] When the user needs to convert the folding table 1 from the Figure 11A and Figure 11B shown fully deployed position to the Figures 1A to 1F shown fully folded position, the above operations can be performed in the reverse order.
[0161] Figures 14 to 16Shows the operation of the functional unit 540. In this embodiment, the functional unit 540 is provided on the upper surface of the second desktop 500. Therefore, when the first half 510 and the second half 520 of the desktop 500 are folded with each other, the user can open the functional unit 540 located on the upper surface of the second half 520. In other embodiments, the functional unit 540 may be provided on the lower surface of the second half 520 (i.e., the surface facing the first half 510). Therefore, when the first half 510 of the desktop 500 slides and the second half 520 is unfolded with each other, the user can open the functional unit 540 located on the lower surface of the second half 520.
[0162] Refer to Figures 17A to 18 Overall description of the second embodiment of the folding table 1 according to the present application.
[0163] In the second embodiment, the transmission part includes a first arm 100, a second arm 200, a third arm 700, an auxiliary arm 600, a carriage 610, a slider 620, and a fixed bracket 630.
[0164] The first arm 100 is rotatably connected to the base 400 about a first axis A1. The second arm 200 is rotatably connected to the first arm 100 about a second axis A2. The third arm 700 is rotatably connected to the second arm 200 about a fifth axis A5, and the desktop 500 is rotatably connected to the third arm 700 about a third axis A3. Among them, the first axis A1 intersects with the second axis A2, the second axis A2 intersects with the third axis A3, and the third axis A3 is parallel to the fifth axis A5.
[0165] The connection manners between the first arm 100 and the base 400, and between the first arm 100 and the second arm 200 in the second embodiment are similar to those in the first embodiment. Therefore, the specific description thereof is omitted. In the second embodiment, the sharing function is not provided by providing relatively rotatable components (i.e., the upper arm 110 and the lower arm 120) on the first arm 100, but by the third arm 700. Since the third arm 700 is connected to the desktop 500 and can rotate relative to the second arm 200 about the fifth axis A5, the third arm 700 allows the desktop 500 to switch between different sharing positions. The circumferential distance between the first sharing position and the second sharing position is, for example, 180°. Therefore, the rotation range of the third arm 700 about the fifth axis A5 can be set to 180°. In other embodiments, the rotation range of the third arm 700 can be set to other angles, such as 90°, 120°, 150°, 240°, 270°, etc.
[0166] At least one torque element 101 is provided around the first axis A1, the second axis A2, the third axis A3, and the fifth axis A5. Therefore, each rotating joint of the folding table 1 can rotate stably and can stop at any position according to the needs of the user. In addition, the torque elements 101 at each axis can be set to provide asymmetric torque to facilitate holding the folding table 1 in a specific position such as the unfolded position. In the second embodiment, the anti-slip mechanism includes at least one torque element 101 provided at the first axis A1, the second axis A2, the third axis A3, and the fifth axis A5.
[0167] Refer to Figure 19 Describe the specific structure of the second arm 200. The upper surface of the second arm 200 is provided with a first rotating disk 250 and a first limiting protrusion 251. The first rotating disk 250 is a disk centered on the fifth axis A5. The first limiting protrusion 251 protrudes from the upper surface of the second arm 200 along the fifth axis A5.
[0168] Refer to Figure 20A and Figure 20B Describe the specific structure of the third arm 700. The lower surface of one end of the third arm 700 (i.e., the end connected to the second arm 200) is provided with a first rotating groove 710 and a first limiting depression 711. The first rotating groove 710 is a circular depression centered on the fifth axis A5. The first limiting depression 711 is a groove recessed along the fifth axis A5 into the lower surface of the third arm 700 and extending a certain angle circumferentially.
[0169] The first rotating disk 250 of the second arm 200 is fitted into the first rotating groove 710 of the third arm 700 so that the second arm 200 and the third arm 700 can be stably connected to rotate relative to each other. The first limiting protrusion 251 is inserted into the first limiting depression 711 to limit the relative rotation range between the second arm 200 and the third arm 700. In this embodiment, the extension range of the first limiting depression 711 is set to 180°, so the relative rotation range between the second arm 200 and the third arm 700 is 180°. In other embodiments, this range can be set to different angles such as 60°, 240°, etc.
[0170] It should be understood that the positions of the first rotating disk 250 and the first rotating groove 710 can be interchanged, that is, the first rotating disk 250 can be provided on the third arm 700, and the first rotating groove 710 can be provided on the second arm 200. Similarly, the positions of the first limiting protrusion 251 and the first limiting depression 711 can also be interchanged.
[0171] The other end of the third arm 700 (i.e., the end connected to the tabletop 500) is provided with a second rotating groove 720 and a second limiting protrusion 721, and their setting methods are similar to those of the first rotating groove 710 and the first limiting protrusion 251. Refer to Figure 21A andFigure 21B On the lower surface of the tabletop 500 (specifically, the first half 510), a second rotating disk 511 and a second limiting recess 512 are provided, and their arrangement is similar to that of the first rotating disk 250 and the first limiting recess 711. It should be understood that the positions of the second rotating disk 511 and the second rotating groove 720 can be interchanged, that is, the second rotating disk 511 can be provided on the second arm 200, and the second rotating groove 720 can be provided on the tabletop 500. Similarly, the positions of the second limiting protrusion 721 and the second limiting recess 512 can also be interchanged.
[0172] Return to Figure 18 , in which it is shown that both ends of the auxiliary arm 600 are respectively connected to the first arm 100 and the second arm 200. When the folding table 1 is in Figure 18 the unfolded position shown, the first arm 100, the second arm 200, and the auxiliary arm 600 form a triangular configuration. When the folding table 1 is in Figures 17A to 17G the folded position shown, the first arm 100, the second arm 200, and the auxiliary arm 600 extend in the same direction.
[0173] The carriage 610 is fixed to the first arm 100 and extends along the first arm 100. The carriage 610 is an independent component embedded in the first arm 100 or is formed as a part of the first arm 100. The slider 620 is inserted into the carriage 610 and is guided to slide by the carriage 610. One end of the auxiliary arm 600 is pivotally connected to the slider 620, and the other end of the auxiliary arm 600 is pivotally connected to the second arm 200, specifically, is connected to the second arm 200 through the fixing bracket 630. The fixing bracket 630 is an independent component embedded in the second arm 200 or is formed as a part of the second arm 200. The carriage 610 and the fixing bracket 630 are respectively arranged to accommodate at least a part of the auxiliary arm 600. Therefore, when the folding table 1 is in the folded position, the auxiliary arm 600, the carriage 610, and the slider 620 are all accommodated in the first arm 100 and the second arm 200.
[0174] Refer to Figures 22 to 28 to describe the operation of the folding table 1 of the second embodiment.
[0175] Starting from Figure 22 the fully folded position, the user pivots the first arm 100 relative to the base around the first axis A1, so that the first arm 100 rotates to the vertical position as shown in Figure 23 .
[0176] Starting from Figure 23 the position shown, the user rotates the second arm 200 relative to the first arm 100 around the second axis A2, so that the second arm 200 rotates to the longitudinal position as shown in Figure 24 .
[0177] Starting from Figure 24Starting from the position shown, the user rotates the tabletop 500 relative to the third arm 700 about the third axis A3 such that the tabletop 500 rotates to Figure 25 the position shown. By rotating the tabletop 500, the position and orientation of the tabletop 500 are changed to meet the user's needs.
[0178] From Figure 25 the position shown, the user unfolds the two halves of the tabletop 500 such that the tabletop 500 assumes Figure 26 the unfolded position shown. Although not shown, the tabletop 500 of the second embodiment may have a functional portion 540 similar to that of the first embodiment.
[0179] From Figure 26 the position shown, the user rotates the third arm 700 about the second arm 200 such that the third arm 700 and the tabletop 500 reach Figure 27 , Figure 28 the different sharing positions shown.
[0180] It should be understood that the user does not need to strictly perform the operations in the above order, but can arbitrarily rotate any joint of the folding table 1 to position the tabletop 500 at the desired position. When the user needs to convert the folding table 1 in the unfolded position to the folded position, the above operations can be performed in the reverse order.
[0181] Figures 29A to 29D The folding table 1 in the folded position is shown in more detail, Figures 30A to 30D and the state where the first arm 100 is rotated to the vertical position is shown in more detail. In particular, as Figure 29C , Figure 29D , Figure 30C , Figure 30D shown, the auxiliary arm 600, the carriage 610, the slider 620, and the fixed bracket 630 are all received in the first arm 100 and the second arm 200, and the slider 620 is located at the upper end of the first arm 100.
[0182] Figures 31A to 31F The state where the second arm 200 is rotated to the longitudinal position is shown in more detail. Figures 32A to 32F The state where the tabletop 500 is rotated relative to the third arm 700 is shown in more detail. In particular, as Figure 31C , Figure 31D , Figure 32C , Figure 32D shown, the slider 620 moves to the lower end of the first arm 100. Figure 31E , Figure 31F , Figure 32E , Figure 32F The cooperation between the first limit protrusion 251 and the first limit recess 711 and the cooperation between the second limit protrusion 721 and the second limit recess 512 as described above are shown.
[0183] Figures 31A to 31F More specifically, the state where the tabletop 500 is unfolded and the third arm 700 and the tabletop 500 are rotated to another sharing position is shown. In particular, Figure 31F The cooperation between the first limiting protrusion 251 and the second limiting recess 512 as described above is shown.
[0184] In summary, the present application provides a folding table that can be switched between a folded state and an unfolded state, and can be switched between multiple sharing positions in the unfolded state. Moreover, the folding table of the present application has an anti-slip mechanism that can provide stable buffering during various conversions of the folding table.
[0185] Although the preferred embodiments have been shown and described herein, it should be understood that these embodiments are given by way of example only. Many variations, changes and substitutions will occur to those skilled in the art without departing from the spirit of the invention. Therefore, the appended claims are intended to cover all such variations that fall within the spirit and scope of the invention.
Claims
1. A folding table (1), characterized in that, The folding table (1) includes: a base (400); a tabletop (500); and a transmission part connected between the base (400) and the tabletop (500), allowing the tabletop (500) to move from a folded position to an unfolded position and allowing the tabletop (500) to rotate about an axis in the unfolded position; wherein, an anti-slip mechanism is provided in the transmission part to allow stable rotation of the tabletop (500).
2. The folding table (1) according to claim 1, characterized in that, The transmission part includes: a first arm (100) rotatably connected to the base (400) about a first axis (A1); a second arm (200) rotatably connected to the first arm (100) about a second axis (A2), and the tabletop (500) is rotatably connected to the second arm (200) about a third axis (A3); the anti-slip mechanism includes an anti-slip unit (300), the anti-slip unit (300) is at least partially provided in the first arm (100) and can abut against the second arm (200); wherein, the second arm (200) can also rotate relative to the first arm (100) about a fourth axis (A4) intersecting the second axis (A2), and the anti-slip unit (300) applies friction to the second arm (200) when the second arm (200) rotates about the second axis (A2) and the fourth axis (A4).
3. The folding table (1) according to claim 2, characterized in that, The anti-slip unit (300) includes: an anti-slip pad (340) provided in the first arm (100) and having a concave surface facing the second arm (200); and a ball (330) provided in the concave surface of the anti-slip pad (340) and abutting against the second arm (200) to roll as the second arm (200) rotates.
4. The folding table (1) according to claim 3, characterized in that, The ball (330) is arranged such that it applies a greater frictional force to the second arm (200) when the second arm (200) is in the unfolded position than when the second arm (200) is in the folded position.
5. The folding table (1) according to claim 3, characterized in that, The second arm (200) is provided with a cam (210) at the connection to the first arm (100), and when the second arm (200) is in the unfolded position, the cam (210) abuts against the ball (330) so as to apply a braking effect to the second arm (200) when the second arm (200) is in the unfolded position.
6. The folding table (1) according to claim 3, characterized in that, The anti-slip unit (300) further includes: a rod-shaped member (320) provided in the first arm (100) and capable of sliding along the first arm (100), the rod-shaped member (320) has a head (322) facing the second arm (200), and the anti-slip pad (340) is provided in the head (322); and a spring (360) provided between the rod-shaped member (320) and the first arm (100) and biasing the rod-shaped member (320) towards the second arm (200).
7. The folding table (1) according to claim 6, characterized in that, The rod-shaped member (320) has a tail portion facing the base (400), and the tail portion forms or is fixed to a joint member (350). When the first arm (100) is in the deployed position, the joint member (350) is inserted into the base (400) to prevent relative rotation between the first arm (100) and the base (400).
8. The folding table (1) according to claim 7, characterized in that, The second arm (200) is provided with a cam (210) at the connection to the first arm (100). When the second arm (200) is in the deployed position, the cam (210) abuts against the rod-shaped member (320) through the ball (330), causing the rod-shaped member (320) to move towards the base (400) and the joint member (350) to be inserted into the base (400). When the second arm (200) disengages from the deployed position, the rod-shaped member (320) moves away from the base (400) under the action of the spring (360) and the joint member (350) disengages from the base (400).
9. The folding table (1) according to claim 6, characterized in that, The head (322) has a non-circular profile such that the rod-shaped member (320) is torsionally resistant and disposed in the first arm (100), and the head (322) has a receiving portion (323) capable of holding the ball (330).
10. The folding table (1) according to any one of claims 6 - 9, characterized in that, The first arm (100) includes an upper arm (110) and a lower arm (120), and the upper arm (110) and the lower arm (120) are respectively rotatably connected to the base (400) and the second arm (200); The anti-slip unit (300) further includes an anti-slip shaft (310), and the anti-slip shaft (310) is fixed to one of the upper arm (110) and the lower arm (120) and inserted into the other of the upper arm (110) and the lower arm (120) to allow the upper arm (110) and the lower arm (120) to rotate relative to each other about the fourth axis (A4).
11. The folding table (1) according to claim 10, characterized in that, The rod-shaped member (320) is received in the hollow portion (311) of the anti-slip shaft (310) and can move along the fourth axis (A4) relative to the anti-slip shaft (310).
12. The folding table (1) according to claim 10, characterized in that, A circumferential groove (312) is provided on the outer periphery of the anti-slip shaft (310), and the anti-slip unit (300) further includes a positioning block (370). The positioning block (370) engages with the second arm (200) and slides along the circumferential groove (312) to define the relative rotation range between the upper arm (110) and the lower arm (120).
13. The folding table (1) according to claim 10, characterized in that, The spring (360) is at least partially disposed in the anti-slip shaft (310) and abuts between the rod-shaped member (320) and the anti-slip shaft (310).
14. The folding table (1) according to claim 10, characterized in that, The anti-slip unit (300) includes at least one torque element (101) disposed between the anti-slip shaft (310) and the other of the upper arm (110) and the lower arm (120).
15. The folding table (1) according to claim 2, characterized in that, The second arm (200) rotates within a range of 180° about the fourth axis (A4) so as to switch between a first shared position and a second shared position.
16. The folding table (1) according to claim 15, characterized in that, The second arm (200) is arranged to rotate about the fourth axis (A4) in a horizontal plane when the first arm (100) is in a vertical position.
17. The folding table (1) according to claim 1, characterized in that, The transmission part includes: A first arm (100) rotatably connected to the base (400) about a first axis (A1); A second arm (200) rotatably connected to the first arm (100) about a second axis (A2); A third arm (700), the tabletop (500) is rotatably connected to the third arm (700) about a third axis (A3), and the third arm (700) is rotatably connected to the second arm (200) about a fifth axis (A5); Wherein, the first axis (A1) intersects with the second axis (A2), the second axis (A2) intersects with the third axis (A3), and the third axis (A3) is parallel to the fifth axis (A5).
18. The folding table (1) according to claim 17, characterized in that, One of the second arm (200) and the third arm (700) is provided with a first rotating disk (250), and the other is provided with a first rotating groove (710), and the first rotating disk (250) is embedded in the first rotating groove (710); and One of the second arm (200) and the third arm (700) is provided with a first limiting protrusion (251), and the other is provided with a first limiting recess (711), and the first limiting protrusion (251) is inserted into the first limiting recess (711) to define the mutual rotation range between the second arm (200) and the third arm (700).
19. The folding table (1) according to claim 17, characterized in that, One of the third arm (700) and the tabletop (500) is provided with a second rotating disk (511), and the other is provided with a second rotating groove (720), and the second rotating disk (511) is embedded in the second rotating groove (720); and One of the third arm (700) and the tabletop (500) is provided with a second limiting protrusion (721), and the other is provided with a second limiting recess (512), and the second limiting protrusion (721) is inserted into the second limiting recess (512) to define the mutual rotation range between the second arm (200) and the third arm (700).
20. The folding table (1) according to claim 17, characterized in that, At least one torque element (101) is provided around the first axis (A1), the second axis (A2), the third axis (A3), and the fifth axis (A5), and the anti-slip mechanism includes the at least one torque unit (101).
21. The folding table (1) according to claim 17, characterized in that, The transmission part further includes: An auxiliary arm (600) with two ends respectively connected to the first arm (100) and the second arm (200). When the folding table (1) is in the unfolded position, the first arm (100), the second arm (200), and the auxiliary arm (600) form a triangular configuration. When the folding table (1) is in the folded position, the first arm (100), the second arm (200), and the auxiliary arm (600) extend in the same direction.
22. The folding table (1) according to claim 21, characterized in that, The transmission part further includes: A carriage (610) fixed to the first arm (100) and extending along the first arm (100); and A slider (620) inserted into the carriage (610) and guided to slide by the carriage (610); One end of the auxiliary arm (600) is pivotally connected to the slider (620), and the other end of the auxiliary arm (600) is pivotally connected to the second arm (200).
23. The folding table (1) according to claim 22, wherein, When the folding table (1) is in the folded position, the auxiliary arm (600), the carriage (610), and the slider (620) are all accommodated in the first arm (100) and the second arm (200).
24. The folding table (1) according to claim 17, wherein, The third arm (700) rotates within a range of 180° about the fifth axis (A5) so as to switch between a first shared position and a second shared position.
25. The folding table (1) according to claim 24, wherein, The third arm (700) is arranged such that when the first arm (100) is in the vertical position, the third arm (700) rotates about the fifth axis (A5) in a horizontal plane.
26. The folding table (1) according to claim 1, wherein, The tabletop (500) includes: A first half (510); A second half (520); and A hinge (530); The first half (510) and the second half (520) are rotatably connected to each other by the hinge (530), and the lower surface of the first half (510) is rotatably connected to the transmission part.
27. The folding table (1) according to claim 26, wherein, The tabletop (500) further includes: A functional part (540), the upper surface of the second half (520) is connected to the functional part (540), and the functional part (540) is arranged to rotate relative to the second half (520).