Mis-rotation prevention device and seat

Abstract

To provide a mis-rotation rotation prevention device and a seat equipped with the mis-rotation prevention device.SOLUTION: There is provided a mis-rotation prevention device connected between a first member and a second member which rotate relatively. The mis-rotation prevention device includes a barrier part and a stopper. The barrier part is fixed to the first member, and the stopper is provided in the second member and is pivotally moved between a lock position and a release position. When the barrier part rotates to the position of the stopper along a rotation direction in the lock position, the stopper engages with the barrier part and prevents the first member from rotating in the rotation direction with respect to the second member.SELECTED DRAWING: Figure 5A

Description

[Technical field]

[0001] The present application relates to a rotation misuse prevention device and a seat equipped with the rotation misuse prevention device. [Background technology]

[0002] The seat is a general device, and babies of different ages can ride on it, and usually, older babies ride on it when the seat is in a forward-facing position, but younger babies ride on it when the seat is in a rear-facing position. In some use environments, the seat needs to be able to rotate in order to change the direction of the occupant. However, after the seat is rotated, it may be misused by a caregiver who places a younger baby on the seat in a forward-facing position. Such a use environment is a car child seat, where the seat body is rotatable with respect to a base fixed to the car body, and the seat backrest can be switched between a rear-facing state and a forward-facing state. And it is necessary to provide a rotation misuse prevention device to further remind the caregiver to be careful to use the seat correctly and safely when the seat is moved forward, and not to leave a younger baby on the seat in the forward-facing mode. Summary of the Invention [Problem to be solved by the invention]

[0003] For safety, for a rotatable seat, the rotation misuse prevention device needs to lock the seat and alert the user to avoid undesired use of the seat. In order to enhance the user's use experience, the rotation misuse prevention device needs to have the characteristics of stable, reliable and easy to operate, and its internal structure needs to be concealed to facilitate the clean appearance of the whole seat. [Means for solving the problem]

[0004] The present application provides a rotation misuse prevention device connected between a first member and a second member which rotate relative to each other, the rotation misuse prevention device comprising a barrier part, an attachment member, a stopper, and a pushing assembly, the barrier part being fixed to the first member, the attachment member being fixed to the second member, the device having a bottom wall, and a first side wall and a second side wall extending from the bottom wall and facing each other, the bottom wall, the first side wall, and the second side wall forming an accommodation space, the stopper being pivotally provided between the first side wall and the second side wall via a rotation shaft, at least a portion of the stopper being accommodated in the accommodation space and in a locked position, a pressing assembly provided on a bottom wall of the mounting member and at least a portion of the pressing assembly is accommodated in the accommodating space, and the pressing assembly is pivoted between a locked position and a released position, and at the locked position, the stopper engages with the barrier portion to prevent the first member from rotating relative to the second member in a rotational direction, and at the released position, the stopper is disengaged from the barrier portion to allow the first member to rotate relative to the second member in the rotational direction, and a pressing assembly is provided on a bottom wall of the mounting member and at least a portion of the pressing assembly is accommodated in the accommodating space, and the pressing assembly slides on the bottom wall due to an external force to pivot the stopper from the locked position to the released position.

[0005] In one embodiment, the rotation misuse prevention device further includes a torsion spring, the torsion spring being fitted onto the rotation shaft, one end of the torsion spring being fixed to the stopper and the other end of the torsion spring being fixed to the mounting member, and biasing the stopper to the locked position.

[0006] In one embodiment, the pushing assembly comprises a driving block, a push button, and a connecting member, the driving block being slidably disposed in the accommodating space and located on a bottom wall of the mounting member, the push button being located outside the accommodating space of the mounting member, and the connecting member fixedly connecting the driving block and the push button.

[0007] In one embodiment, at least one of the first side wall and the second side wall of the mounting member has an elongated groove arranged along the sliding direction of the drive block, and the connecting member passes through the elongated groove to fixedly connect the drive block and the push button, and can slide along the elongated groove.

[0008] In one embodiment, the drive block has a first end and a second end along its sliding direction and a protrusion between the first end and the second end, and in a height direction perpendicular to the sliding direction, the first end has a gradually increasing height that transitions at an incline to the protrusion, and the second end has a substantially uniform height lower than the protrusion, and the connecting member is shaped like a folded rod, one end of which is inserted into the protrusion along a direction perpendicular to the sliding direction and the height direction, and the other end is fixed to the push button.

[0009] In one embodiment, the stopper has a top surface and a bottom surface, the top surface facing away from the bottom wall of the mounting member and generally parallel to the bottom wall, and the bottom surface facing the bottom wall of the mounting member and generally parallel to the bottom wall, wherein the bottom surface of the stopper is provided with a foot portion protruding outward, and the pushing assembly pushes the foot portion to pivot the stopper from the locked position to the released position.

[0010] In one embodiment, the stopper has a top surface, a bottom surface, and both side surfaces, the top surface facing away from the bottom wall of the mounting member and generally parallel to the bottom wall, the bottom surface facing the bottom wall of the mounting member and generally parallel to the bottom wall, an outwardly protruding foot portion is provided at one end of the bottom surface of the stopper, and both side surfaces are located between the top surface and the bottom surface, wherein in the released position, the drive block is located at one end of the elongated groove, the foot portion is located at a second end of the drive block, and the top surface of the drive block is provided facing the barrier portion, and in the locked position, the drive block is located at the other end of the elongated groove, the foot portion is located at a first end of the drive block, and one of the both side surfaces of the stopper engages with the barrier portion.

[0011] The present application provides a seat comprising a base, a pressing member, a seat body, and the above-mentioned rotation misuse prevention device of the present application, wherein the base comprises a ring-shaped track, the ring-shaped track limits a sliding direction, the pressing member is connected to the base and slidably inserted into the ring-shaped track, the seat body is fixed to the pressing member and can rotate relative to the base together with the pressing member, the rotation misuse prevention device is attached between the base and the pressing member, the first member is the pressing member, and the second member is the base.

[0012] In one embodiment, the pressing member comprises a pressing member body that is slidable on the annular track, and the barrier portion is provided on the pressing member body and extends radially outward of the annular track.

[0013] In one embodiment, there are two rotation misuse prevention devices, each located on either side of the base, and an interlocking member is provided between the two rotation misuse prevention devices, so that when the pushing assembly of one of the two rotation misuse prevention devices is operated, the pushing assembly of the other of the two rotation misuse prevention devices is operated in synchronization.

[0014] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of the seat of the present application, where the seat proper is rotated to a forward-facing position. [Diagram 2] 2 is a perspective view of the seat of the present application from another angle, where the seat body is rotated to a rearward facing position. FIG. [Diagram 3] FIG. 2 is a perspective view of the seat of the present application from another angle, where the base below the base is omitted and the seat body is rotated to a rearward facing position. [Figure 4]FIG. 2 is a perspective view of the seat of the present application from another angle, in which the base below the base is omitted and the seat body is rotated to a central position between the forward and rearward positions. [Figure 5A] 1 is a perspective view of the base, pressure member, mounting member, stopper and push button of the seat of the present application, where the pressure member is rotated to a different position from the stopper. [Figure 5B] 13 is a perspective view of the base, pressing member, mounting member, stopper and push button of the seat of the present application from another angle, in which the pressing member is rotated to a different position from the stopper. FIG. [Figure 6] FIG. 2 is a perspective view of the base, pressure member, mounting member, stopper and push button of the seat of the present application, where the pressure member is rotated to the position of the stopper. [Figure 7] FIG. 2 is a perspective view of the pressing member, mounting member, stopper and push button of the seat of the present application, in which the pressing member is rotated to a different position from the stopper. [Figure 8] FIG. 2 is a perspective view of the pressing member, mounting member, stopper and push button of the seat of the present application, where the pressing member is rotated to the position of the stopper. [Figure 9A] 1 is a perspective view of a sheet-like pressing member, a mounting member, a stopper, and a push button of the present application, where the push button is in an exploded state. [Figure 9B] FIG. 9B is a partially enlarged view of FIG. 9A. [Figure 10A] FIG. 2 is a perspective view of the pressing member, mounting member, stopper, and push button of the sheet of the present application, in which the mounting member, stopper, push button, and other members on one side are in a disassembled state. [Figure 10B] FIG. 10B is a partially enlarged view of FIG. 10A. [Figure 11] This is a perspective view from an angle of the pressing member, mounting member, stopper and push button of the sheet of the present application, where the mounting member, stopper and push button on one side are shown in cross section, where the stopper does not block the pressing member. [Figure 12]This is a perspective view of the pressing member, mounting member, stopper and push button of the sheet of the present application from another angle, where the mounting member, stopper and push button on one side are shown in cross section, where the pressing member is blocked by the stopper. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Although the invention is illustrated and described herein with reference to specific embodiments, the invention should not be limited to the details shown. Indeed, various modifications of these details can be made within the scope of the equivalent scheme of the claims and without departing from the invention.

[0017] Directional descriptions such as "front", "back", "upper", and "lower" in this specification are for the convenience of understanding, and the present invention is not limited to these directions and can be adjusted according to actual situations.

[0018] First, referring to FIG. 1, FIG. 1 is a perspective view showing a seat 100 according to the present application, in which a seat body 110 is rotated forward. As shown, the seat 100 includes a seat body 110 and a base 120. The seat body 110 is rotatably attached to the base 120 so that the seat body 110 can be rotated to a forward-facing position (FIG. 1) and a rearward-facing position (FIG. 2). The base 120 is attached to a pedestal located below the base 120, and in one embodiment, the base 120 can slide back and forth relative to the pedestal, providing more positions for the base 120. The pedestal is used to secure the entire seat 100 to a carriage such as an automobile.

[0019] Next, referring to FIG. 2, FIG. 2 is a perspective view of the seat 100 according to the present application from another angle, in which the seat body 110 is rotated to a rearward-facing position. As shown in the figure, the seat body 110 rotates 180 degrees with respect to the base 120 from the forward-facing position shown in FIG. 1 to reach a rearward-facing position in which the seat back faces forward, and is used for small infants and toddlers, and in this technical solution, this direction is used for infants and toddlers aged 0 to 4 years. In this way, for example, when a moving car suddenly decelerates, the seat 100 in the rearward-facing position can play a role in mitigating the impact force on the child in the seat 100 and protecting the child. Also, when the rotation axis of the seat body 110 has a certain inclination angle, the seat body 110 in the rearward-facing position can provide a certain elevation angle, and can provide a more comfortable ride.

[0020] Next, referring to FIG. 3, FIG. 3 is a perspective view of the seat 100 according to the present application from another angle, in which the lower base of the base 120 is omitted and the seat body 110 is rotated to a rearward facing position. From FIG. 3, the positional relationship between the seat body 110 and the base 120 can be seen more clearly. From FIG. 3, the push button 160 of the rotation misuse prevention device can also be seen. The push button 160 is located on the outside of the base 120, and this position is configured so that a user can rotate the seat body 110 with one hand while operating the push button 160 with the other hand. The user can operate the rotation misuse prevention device with the push button 160, thereby locking and unlocking the relative rotation between the seat body 110 and the base 120.

[0021] In the present application, the push button 160, the drive block 170, and the connecting member 165 may be referred to as a pushing assembly.

[0022] Referring to Fig. 4, Fig. 4 is a perspective view of the seat 100 of the present application from another angle, in which the pedestal under the base 120 is omitted and the seat body 110 is rotated to an intermediate position between the forward-facing position and the rearward-facing position. At this time, the seat body 110 is approximately lateral to the base 120. According to the rotation misuse prevention device of the present application, the seat 100 can be designed to be locked in any rotation position. In this embodiment, a rotation misuse prevention device capable of locking the seat body 110 in the forward-facing position and the rearward-facing position is shown, but it should be understood that the present application is not limited to these two locking positions.

[0023] 5A and 5B are perspective views showing two different angles of the base 120, the pressing member 130, the mounting member 140, the stopper 150 and the push button 160 of the seat 100 according to the present application, where the pressing member 130 is rotated to a different position from the stopper 150.

[0024] As shown, the base 120 has a circular track on the side facing the seat body 110, and the pressing member 130 can slide on this circular track, is fixedly connected to the seat body 110, and can rotate relative to the base 120 along with the seat body 110. In the illustrated embodiment, two pressing members 130 are uniformly provided along the circumference of the circular track, and each pressing member 130 has an arc portion extending approximately along the circular track and hook portions at both ends of the arc portion, the arc portion is inserted into the circular track so that the pressing member 130 can slide along the circular track, and the hook portion extends toward the seat body 110 and is joined to the bottom of the seat body 110. Note that the shape and number of the pressing members 130 in this embodiment are merely illustrative.

[0025] In other embodiments, the pressing members 130 may be single or multiple, and may be uniformly or non-uniformly distributed on the circumference of the circular track. In other embodiments, the pressing members 130 may have different shapes as long as they can be fixedly connected to the seat body 110.

[0026] The mounting member 140 is fixedly attached to the base 120 to provide a structure for mounting members such as the stopper 150. The stopper 150 is pivotally connected to the mounting member 140, and the rotation axis of the stopper 150 is approximately along the radial direction of the annular track. In this manner, the pivoting of the stopper 150 can lift one end of the stopper 150 toward the seat body 110, which interferes with the pressing member 130 (specifically, the barrier portion 131 in the annular portion of the pressing member), and can prevent the pressing member 130 from sliding along the annular track when the pressing member 130 rotates from the rearward direction to the position of the stopper 150 (FIG. 6). This will be described in detail later.

[0027] The push button 160 is attached to the side wall of the base 120, with a portion of it exposed to the outside of the seat 100 through an opening in the side wall, thereby making it easy for the user to operate it, and the other portion is connected to a drive block 170 (described later) of the mounting member 140, and drives the pivoting of the stopper 150 via the drive block 170.

[0028] In the illustrated embodiment, two sets of assemblies are evenly spaced along the circumference of the circular track, and each set includes a mounting member 140, a stopper 150, a push button 160, and a drive block 170. In addition, there is a synchronous interlock between the two sets of assemblies, so that the stoppers 150 in the two sets of assemblies synchronously block or do not block the corresponding pressing members 130. In this way, a user can control the two sets of assemblies simultaneously by only operating the push button 160 in one set of assemblies. In the illustrated embodiment, the synchronous interlock is an annular interlock member 190 connected to the two push buttons 160, and the interlock member 190 extends about 180 degrees along the circular track, but is not limited to this angle. It is to be noted that other types of synchronous interlock devices can also be adopted. It is to be noted that only one set of assemblies may have a push button 160 for user operation to drive all the assemblies by the synchronous interlock between each set.

[0029] 6, which is a perspective view of the base 120, the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the seat 100 according to the present application, in which the pressing member 130 has been rotated to the position of the stopper 150. In the position shown in FIG. 6, a user can operate the push button 160 to move the stopper 150, thereby preventing or allowing the pressing member 130 to slide along the circular track, and further preventing or allowing the seat main body 110 to rotate relative to the base 120.

[0030] 7 and 8, Fig. 7 is a perspective view of the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the sheet 100 according to the present application, where the pressing member 130 is rotated to a position different from the stopper 150. Fig. 8 is a perspective view of the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the sheet 100 according to the present application, where the pressing member 130 is rotated to the position of the stopper 150. Figs. 7 and 8 make it possible to more clearly understand the positional relationship between the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the present application.

[0031] 9A and 9B, FIG. 9A is a perspective view of the pressing member 130, the mounting member 140, the stopper 150 and the push buttons 160 of the sheet 100 according to the present application, where one push button 160 is in an exploded state, and FIG. 9B is a partially enlarged view of FIG. 9A.

[0032] As shown in the figure, the push button 160 has an arc-shaped push button plate 161 extending along the inner wall of the base 120, a push button operation portion 162 protruding from one side of the push button plate 161, and a push button connection portion 163 extending from the push button plate 161 in the opposite direction to the push button operation portion 162, and the push button connection portion 163 is provided with a plurality of insertion holes extending in a direction substantially perpendicular to the base 120. During use, the push button plate 161 is attached to the inside of the side wall of the base 120 so that the push button 160 can slide within a certain range along the side wall of the base 120. The push button operation portion 162 extends from an opening in the side wall of the base 120 so that a user can operate the push button 160. A connecting member 165 connected to the drive block 170 and an interlocking member 190 connected to another push button 160 are inserted into the insertion hole of the push button connection portion 163, causing the connecting member 165 and the interlocking member 190 to move together with the push button 160.

[0033] The connecting member 165 is a folding rod member having a plurality of extending segments, including a first segment extending in a direction substantially perpendicular to the base 120 and inserted into the push button 160, a second segment extending circumferentially around the base 120 for connecting the first segment and a third segment, and a third segment extending radially around the base 120 and inserted into the drive block 170 through the elongated grooves 142 on the first side wall 141a and the second side wall 141b of the mounting member 140, causing the drive block 170 and the push button 160 to move together.

[0034] Next, reference is made to Figures 10A and 10B. Figure 10A is a perspective view of the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the sheet 100 according to the present application, in which the mounting member 140, the stopper 150, the push button 160, and other members on one side are in a disassembled state. Figure 10B is a partially enlarged view of Figure 10A.

[0035] As shown in the figure, the mounting member 140 is generally box-shaped having a bottom wall and a first side wall 141a and a second side wall 141b standing on either side of the bottom wall, and both ends are provided with mounting features such as bolt holes for fixing to the base 120. Thus, the mounting member 140 forms an accommodation space with one side open so that at least a portion of the accommodation space is accommodated in the drive block 170 and the stopper 150. The first side wall 141a and the second side wall 141b of the mounting member 140 are each provided with a pivot hole so that the stopper 150 can be pivotally assembled to the mounting member 140.

[0036] The drive block 170 is slidably provided in the accommodation space of the mounting member 140, and slides in the circumferential direction of the base 120 along the bottom wall of the mounting member 140. The drive block 170 has a first end 171 and a second end 172 along its sliding direction, and has a protrusion 173 between the first end 171 and the second end 172. In the height direction perpendicular to the sliding direction, the first end 171 has a gradually increasing height that transitions at an angle to the protrusion 173, and the second end 172 has a substantially uniform height that is lower than the protrusion 173. The drive block 170 is also provided with a drive block insertion hole for inserting the connection member 165 into the drive block 170.

[0037] The stopper 150 has a top surface 151 facing away from the bottom wall of the mounting member 140 and substantially parallel to the bottom wall, and a bottom surface 152 facing the bottom wall of the mounting member 140 and substantially parallel to the bottom wall, where an outwardly protruding foot portion 153 is provided on the bottom surface 152 of the stopper 150, and the pushing assembly pivots the stopper 150 from the locked position to the released position by pushing the foot portion 153. A pivot hole is also provided along the radial direction of the base 120 in the stopper 150, and a rotation shaft (not shown) passes through the pivot holes of the first side wall 141a and the second side wall 141b of the mounting member 140 and the pivot hole of the stopper 150, so that the stopper 150 is pivotally assembled to the mounting member 140.

[0038] A torsion spring 180 is also provided between the stopper 150 and the mounting member 140. The torsion spring 180 is fitted around the pivot hole of the stopper 150, with one end abutting against the stopper 150 and the other end abutting against the mounting member 140, biasing the stopper 150 to the lock position (i.e., a position that prevents the movement of the pressing member 130).

[0039] It should be noted that in this embodiment, the drive block 170, the push button 160, and the connecting member 165 are assembled to form a push assembly, which may facilitate assembly of the entire rotation misuse prevention device. In other embodiments, the drive block 170, the push button 160, and the connecting member 165 may be formed as a unitary member.

[0040] Next, the operation of the rotation misuse prevention device of the present application will be described with reference to Figures 11 and 12. Figure 11 is a perspective view of the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the sheet 100 of the present application from a certain angle, where the mounting member 140, the stopper 150, the push button 160, and other members on one side are shown in cross-section, and the stopper 150 does not block the pressing member 130. Figure 12 is a perspective view of the pressing member 130, the mounting member 140, the stopper 150, and the push button 160 of the sheet 100 of the present application from another angle, where the mounting member 140, the stopper 150, the push button 160, and other members on one side are shown in cross-section, and the pressing member 130 is blocked by the stopper 150.

[0041] 11, the drive block 170 slides to the left in the accommodation space of the mounting member 140 so that the first end 171 of the drive block 170 abuts against the end wall of the mounting member 140. The foot 153 of the stopper 150 abuts against a uniform height segment (or flat portion) between the second end 172 and the protrusion 173 of the drive block 170 so that the top surface 151 of the stopper 150 is substantially parallel to the bottom wall of the mounting member 140. In this way, the stopper 150 does not prevent the pressing member 130 from sliding along the annular track.

[0042] When the user needs to lock the pressing member 130 (and the seat body 110), the push button 160 is operated to move to the right in the figure, and the driving block 170 slides and abuts against the right end wall of the mounting member 140. In this process, the foot 153 of the stopper 150 passes over the slope between the flat part of the second end 172 of the driving block 170 and the protruding part 173, and then slides down along the slope between the first end 171 of the driving block 170 and the protruding part 173 until it abuts against the bottom wall of the mounting member 140. At this time, the stopper 150 rotates relative to the mounting member 140 so that the top surface 151 of the stopper 150 is inclined relative to the bottom wall of the mounting member 140. As a result, one end of the stopper 150 is lifted away from the mounting member 140 and interferes with the barrier part 131 of the pressing member 130, thereby preventing the rotation of the pressing member 130 (and the seat body 110).

[0043] In the illustrated embodiment, the stopper 150 is shown to block rotation of the pressing member 130 in one direction. It should be understood that in other embodiments, the stopper 150 can be configured to block rotation of the pressing member 130 in both directions. For example, one end of the stopper 150 can be configured to have a notch that corresponds to the barrier portion 131 of the pressing member 130, thereby locking the barrier portion 131 in both directions.

[0044] This specification also discloses the following invention.

[0045] (1) A rotation misuse prevention device connected between a first member and a second member that rotate relative to one another, the rotation misuse prevention device comprising a barrier portion and a stopper, the barrier portion fixed to the first member, the stopper provided on the second member, and pivotable between a locked position and an unlocked position, wherein in the locked position, when the barrier portion rotates along a rotational direction to the position of the stopper, the stopper engages with the barrier portion to prevent the first member from rotating in the rotational direction relative to the second member.

[0046] (2) The misrotation prevention device described in (1) is characterized in that, in the locked position, the stopper is located in the rotation path of the barrier portion.

[0047] (3) The rotation misuse prevention device described in (1) is characterized in that, in the locked position, when the barrier portion rotates to the position of the stopper along the rotation direction, the stopper engages with the barrier portion to permit the first member to rotate relative to the second member along the direction opposite to the rotation direction, and / or, when the barrier portion rotates to the position of the stopper along the direction opposite to the rotation direction in the locked position, the barrier portion pushes the stopper and pivots to the released position.

[0048] (4) The misrotation prevention device described in (1) is characterized in that it further comprises an attachment member fixed to the second member, and the stopper is provided on the attachment member.

[0049] (5) The mounting member has a bottom wall and a first side wall and a second side wall extending from the bottom wall and facing each other, the bottom wall, the first side wall and the second side wall forming an accommodating space, and the stopper is pivotably disposed between the first side wall and the second side wall via a rotating shaft, and at least a portion of the stopper is accommodated in the accommodating space and pivoted between the locked position and the released position, characterized in that the rotation misuse prevention device described in (4) is characterized in that the mounting member has a bottom wall and a first side wall and a second side wall extending from the bottom wall and facing each other, the bottom wall, the first side wall and the second side wall forming an accommodating space, the stopper is pivotably disposed between the first side wall and the second side wall via a rotating shaft, and at least a portion of the stopper is accommodated in the accommodating space and pivoted between the locked position and the released position.

[0050] (6) The rotation misuse prevention device described in (5) further comprises a pushing assembly, the pushing assembly being provided on the bottom wall of the mounting member and at least partially accommodated in the accommodating space, and the pushing assembly sliding along the bottom wall by an external force causes the stopper to pivot from the locked position to the released position.

[0051] (7) The rotation misuse prevention device described in (5) is further provided with a torsion spring, the torsion spring being fitted onto the rotating shaft, one end being fixed to the stopper and the other end being fixed to the mounting member, and biasing the stopper to the locked position.

[0052] (8) The rotation misuse prevention device described in (6) is characterized in that the pushing assembly comprises a driving block, a push button, and a connecting member, the driving block is slidably arranged in the accommodating space and is located on the bottom wall of the mounting member, the push button is located outside the accommodating space of the mounting member, and the connecting member fixedly connects the driving block and the push button.

[0053] (9) The rotation misuse prevention device described in (8) is characterized in that at least one of the first side wall and the second side wall of the mounting member has a long groove arranged along the sliding direction of the drive block, and the connecting member passes through the long groove to fixedly connect the drive block and the push button and can slide along the long groove.

[0054] (10) The drive block has a first end and a second end along the sliding direction and a protrusion between the first end and the second end, and in a height direction perpendicular to the sliding direction, the first end has a gradually increasing height that transitions at an angle to the protrusion, and the second end has a substantially uniform height lower than the protrusion, and the connecting member is shaped like a folded rod, one end of which is inserted into the protrusion along a direction perpendicular to the sliding direction and the height direction, and the other end of which is fixed to the push button.

[0055] (11) The stopper has a top surface and a bottom surface, the top surface faces away from the bottom wall of the mounting member and is approximately parallel to the bottom wall, the bottom surface faces the bottom wall of the mounting member and is approximately parallel to the bottom wall, the bottom surface of the stopper is provided with a foot portion protruding outward, and the pushing assembly pushes the foot portion to pivot the stopper from the locked position to the released position, characterized in that the rotation misuse prevention device described in (6) is characterized in that the top surface faces away from the bottom wall of the mounting member and is approximately parallel to the bottom wall, the bottom surface of the stopper is provided with a foot portion protruding outward, and the pushing assembly pushes the foot portion to pivot the stopper from the locked position to the released position.

[0056] (12) The stopper has a top surface, a bottom surface, and both side surfaces, the top surface faces away from the bottom wall of the mounting member and is approximately parallel to the bottom wall, the bottom surface faces the bottom wall of the mounting member and is approximately parallel to the bottom wall, one end of the bottom surface of the stopper has a foot protruding outward, and the both side surfaces are located between the top surface and the bottom surface, in the released position, the drive block is located at one end of the elongated groove and the foot is located at the second end of the drive block, and the top surface of the drive block faces the barrier portion, and in the locked position, the drive block is located at the other end of the elongated groove and the foot is located at the first end of the drive block, and one of the both side surfaces of the stopper engages with the barrier portion.

[0057] (13) A seat comprising a base, a pressing member, a seat body, and a rotation misuse prevention device according to any one of (1) to (12) above, wherein the base comprises a ring-shaped track, the ring-shaped track limits a sliding direction, the pressing member is connected to the base and slidably inserted into the ring-shaped track, the seat body is fixed to the pressing member and can rotate relative to the base together with the pressing member, the rotation misuse prevention device is attached between the base and the pressing member, the first member is the pressing member, and the second member is the base.

[0058] (14) The seat described in (13), characterized in that the pressing member has a pressing member body that can slide on the annular track, and the barrier portion is provided on the pressing member body and extends radially outward from the annular track.

[0059] (15) The seat described in (13) or (14) is characterized in that there are two anti-rotation misuse devices, each located on either side of the base, a toggle link is provided between the two anti-rotation misuse devices, and when the pushing assembly of one of the two anti-rotation misuse devices is operated, the pushing assembly of the other of the two anti-rotation misuse devices is operated in synchronization.

[0060] Other embodiments of the present application will be readily apparent to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses, or adaptations of the present application in accordance with the general principles of the present disclosure, including common sense or customary technical means known in the art that are not disclosed herein. The specification and examples are considered to be exemplary only, with a true scope and spirit of the present application being indicated by the following claims.

[0061] Although the present specification is described with reference to the enumeration of exemplary embodiments, the terms used are exemplary and not limiting. Since the present application can be specifically implemented in various forms without departing from the spirit and substance of the present application, the above-described embodiments are not limited to the above-described details, and should be interpreted as broadly as defined in the scope of the claims, so that all changes falling within the scope of the claims or their equivalents should be understood to be included in the scope of the claims. [Explanation of symbols]

[0062] 100 sheets 110 Seat body 120 Base 130 Pressing member 131 Barrier Section 140 Mounting parts 141a first side wall 141b Second side wall 142 Long groove 150 Stopper 151 Top surface 152 Bottom 153 Foot 160 Push Button 161 Push Button Plate 162 Push button operation unit 163 Push button connection 165 Connection parts 170 Drive Block 171 First Edge 172 Second End 173 Protrusion 180 Torsion Spring 190 Interlocking parts

Claims

1. 1. A rotation misuse prevention device connected between a first member and a second member which rotate relative to one another, comprising: The misrotation prevention device includes a barrier portion and a stopper, the barrier portion is fixed to the first member, the stopper is provided on the second member and is pivotable between a locked position and an unlocked position; When the barrier portion is rotated to the position of the stopper along a rotation direction in the locked position, the stopper engages with the barrier portion to prevent the first member from rotating in the rotation direction relative to the second member. A device for preventing misrotation.

2. In the locked position, the stopper is located in a rotation path of the barrier portion.

2. The misrotation prevention device according to claim 1 .

3. and / or, in the locked position, when the barrier portion rotates along the rotation direction to the position of the stopper, the stopper engages the barrier portion to allow the first member to rotate relative to the second member along a direction opposite to the rotation direction; When the barrier portion is rotated to the position of the stopper along the direction opposite to the rotation direction in the locked position, the barrier portion pushes the stopper and pivots to the released position.

2. The misrotation prevention device according to claim 1 .

4. a mounting member fixed to the second member; The stopper is provided on the mounting member.

2. The misrotation prevention device according to claim 1 .

5. the mounting member has a bottom wall, and a first side wall and a second side wall extending from the bottom wall and facing each other, the bottom wall, the first side wall and the second side wall forming an accommodation space; the stopper is pivotally provided between the first side wall and the second side wall via a rotation shaft, and at least a portion of the stopper is accommodated in the accommodation space and pivoted between the lock position and the release position.

5. The misrotation prevention device according to claim 4.

6. The rotation misuse prevention device further comprises a pushing assembly, The pushing assembly is provided on the bottom wall of the mounting member, and at least a portion of the pushing assembly is accommodated in the accommodation space. The pushing assembly is moved along the bottom wall by an external force. Sliding the stopper pivots it from the locked position to the released position.

6. The misrotation prevention device according to claim 5.

7. The rotation misuse prevention device further comprises a torsion spring; the torsion spring is fitted onto the rotating shaft, has one end fixed to the stopper and the other end fixed to the mounting member, and biases the stopper to the lock position.

6. The misrotation prevention device according to claim 5.

8. The pushing assembly includes a drive block, a push button, and a connecting member; the drive block is slidably provided in the accommodation space and is located on the bottom wall of the mounting member; the push button is located outside the accommodation space of the mounting member, The connecting member fixedly connects the drive block and the push button.

7. The misrotation prevention device according to claim 6.

9. At least one of the first side wall and the second side wall of the mounting member has an elongated groove provided along a sliding direction of the drive block, the connecting member passes through the elongated groove to fixedly connect the drive block and the push button, and can slide along the elongated groove; 9. The misrotation prevention device according to claim 8.

10. the drive block has a first end and a second end along the sliding direction and a protrusion between the first end and the second end; In a height direction perpendicular to the sliding direction, the first end has a gradually increasing height that transitions at an angle to the protrusion, and the second end has a substantially uniform height that is lower than the protrusion; The connecting member has a folded rod shape, one end of which is inserted into the protruding portion along a direction perpendicular to the sliding direction and the height direction, and the other end of which is fixed to the push button.

10. The misrotation prevention device according to claim 9.

11. The stopper has a top surface and a bottom surface; the top surface faces away from the bottom wall of the mounting member and is generally parallel to the bottom wall; the bottom surface faces the bottom wall of the mounting member and is substantially parallel to the bottom wall; a foot portion protruding outwardly from a bottom surface of the stopper, and the pushing assembly pushes the foot portion to pivot the stopper from the lock position to the release position; 7. The misrotation prevention device according to claim 6.

12. The stopper has a top surface, a bottom surface, and both side surfaces; the top surface faces away from the bottom wall of the mounting member and is generally parallel to the bottom wall; the bottom surface faces the bottom wall of the mounting member and is substantially parallel to the bottom wall, and a foot portion protruding outward is provided at one end of the bottom surface of the stopper, The side surfaces are located between the top surface and the bottom surface, In the release position, the drive block is located at one end of the elongated channel, the foot is located at the second end of the drive block, and a top surface of the drive block faces the barrier portion; In the locked position, the drive block is located at the other end of the elongated groove, the foot is located at the first end of the drive block, and one of the sides of the stopper engages the barrier portion.

9. The misrotation prevention device according to claim 8.

13. A seat comprising a base, a pressing member, a seat body, and the misrotation prevention device according to any one of claims 1 to 12, The base includes a circular track, the circular track defines a sliding direction; the pressing member is connected to the base and slidably inserted into the annular track; the seat body is fixed to the pressing member and can rotate together with the pressing member relative to the base, The misrotation prevention device is attached between the base and the pressing member, the first member being the pressing member and the second member being the base. A sheet characterized by:

14. The pressing member includes a pressing member body that can slide on the annular track, and the barrier portion is provided on the pressing member body and extends radially outward from the annular track.

14. The sheet according to claim 13.

15. The rotation misuse prevention devices are two, each located on either side of the base, and a toggle link is provided between the two rotation misuse prevention devices, so that when the pushing assembly of one of the two rotation misuse prevention devices is operated, the pushing assembly of the other of the two rotation misuse prevention devices is operated in synchronization.

15. A sheet according to claim 13 or 14.

Images