sliding device

Abstract

The present disclosure relates to a sliding device. Specifically, the present disclosure provides a sliding device for a seat, which is provided with a fixed rail provided with a plurality of fitting holes, a movable rail linked to the fixed rail in a slidable manner, a first latch portion linked to the movable rail in a manner capable of displacement between a locked position and an unlocked position, a second latch portion linked to the movable rail in a manner capable of displacement between a locked position and an unlocked position, a first spring for retaining the first latch portion in the locked position, and a second spring for retaining the second latch portion in the locked position.

Description

Technical Field

[0001] This disclosure relates to a sliding device for supporting a seat in a sliding manner. Background Technology

[0002] For example, in the sliding device described in Japanese Patent Application Publication No. 2007-145144, by inserting multiple locking claws into engagement holes provided on a fixed guide rail, the sliding of the movable guide rail relative to the fixed guide rail can be prevented. In addition, a tapered inclined portion is provided on the root side of each locking claw. Summary of the Invention

[0003] In the above configuration, a spring is required to hold multiple locking claws in a position where the locking claws are engaged with the engagement hole (hereinafter referred to as the "engaged position"). The spring causes the multiple locking claws to accelerate and displace from a position away from the engagement hole (hereinafter referred to as the "unengaged position") toward the engaged position.

[0004] Therefore, as the displacement stroke from the non-engaged position to the engaged position increases, the speed at which the locking pawl plunges into the engagement hole (hereinafter referred to as the "plunging speed") also increases.

[0005] Furthermore, as the penetration speed increases, the kinetic energy of the locking pawl also increases, thus increasing the impact force when it penetrates the engagement hole. In view of this problem, this disclosure provides an example of a sliding device.

[0006] One aspect of this disclosure is a sliding device for supporting a seat in a sliding manner, the sliding device preferably having at least one of the following components.

[0007] That is, the constituent elements include: a fixed guide rail, which cannot move and has multiple fitting holes along its longitudinal direction; a movable guide rail, which is slidably connected to the fixed guide rail and configured such that the seat is mounted on the movable guide rail; and a first latching part, which is connected to the movable guide rail in a manner that allows it to move between a locked position and an unlocked position, wherein the locked position is the position where it engages with the first fitting hole in the fitting holes, and the unlocked position is the position where it disengages from the first fitting hole, and the first latching part has a tapered inclined portion, which, when in its locked position, tilts... The inclined portion contacts the inner peripheral surface of the first fitting hole; the second latch portion is connected to the movable guide rail in a manner that allows displacement between a locked position and an unlocked position, wherein the locked position is a position in which the second fitting hole is engaged in the fitting hole, and the unlocked position is a position out of the second fitting hole, and the second latch portion includes at least one second latch portion that can be independently displaced relative to the first latch portion; the first spring is used to exert an elastic force to hold the first latch portion in its locked position; and the second spring is used to exert an elastic force to hold the second latch portion in its actually locked position.

[0008] Furthermore, it is preferable that the length of the first latch portion is shorter than the length of the second latch portion, and it is also preferable that when the second latch portion is in its locked position, the second latch portion is in a state of non-contact with the inner periphery of the second fitting hole.

[0009] Therefore, in this sliding device, the displacement stroke of the first latch is shortened. Consequently, the insertion speed of the first latch is also reduced, thereby mitigating the impact force when the first latch penetrates into the engagement hole. Furthermore, since the second latch is in a state of non-contact with the inner circumference of the engagement hole, the impact force generated when the second latch penetrates into the engagement hole is sufficiently reduced.

[0010] In addition, the sliding device may have the following configuration.

[0011] That is, preferably, the movable guide rail has a side portion and a side portion, which are respectively opposite to the two sides of the engaging portion. The engaging portion is the part of the fixed guide rail that is provided with engaging holes. Preferably, engaging holes are provided at the side portion and the side portion respectively. The engaging holes can be passed through by the first latching part and the second latching part. Preferably, when the first latching part is in its locked position, the first latching part passes through the first engaging hole of the engaging hole and the first engaging hole of the engaging hole at the side portion. In addition, preferably, when the second latching part is in its locked position, the second latching part passes through the second engaging hole of the engaging hole, the second engaging hole of the engaging hole at the side portion, and the third engaging hole of the engaging hole at the side portion.

[0012] Furthermore, it is preferable that the number of first latch portions is less than the number of second latch portions. As a result, the mass of the components constituting the first latch portion is reduced, thereby ensuring that the impact force when the first latch portion protrudes into the engagement hole is significantly reduced.

[0013] Furthermore, the sliding device preferably includes a bracket fixed to the movable guide rail. The bracket has a shaft that supports the first latch and the second latch, allowing them to rotate between their respective locked and unlocked positions. This reduces the number of components in the sliding device or prevents an increase in the number of components.

[0014] Furthermore, the preferred sliding device also includes: a first retaining portion disposed in the first latching portion and having a shaft hole through which the shaft portion passes; and a second retaining portion disposed in the second latching portion and having a shaft hole into which the shaft portion is inserted. When the first retaining portion and the second retaining portion are provided, it is preferred that the portion of the second retaining portion having the shaft hole is located on the opposite side of the bracket, across from the portion of the first retaining portion having the shaft hole.

[0015] Therefore, the larger external force acting on the movable guide rail is first transmitted to the first retaining part via the bracket. Moreover, when the first latching part, the first retaining part, and the fitting hole that engages with the first latching part deform, the external force is transmitted to the second retaining part. Thus, the energy generated by the larger external force acting on the movable guide rail can be effectively absorbed.

[0016] Furthermore, it is preferable that the elastic force of the first spring holding the first latch in its locked position is less than the elastic force of the second spring holding the second latch in its locked position. This reduces the operating force required to displace the first and second latches to their respective unlocked positions.

[0017] Furthermore, it is preferable that when the first latch and the second latch move from their respective locked positions to the unlocked position side, the second latch first moves to a predetermined position to the unlocked position side, and then the first latch and the second latch move together to the unlocked position side. This ensures that the operating force required to move the first latch and the second latch to the unlocked position is reduced. Attached Figure Description

[0018] Figure 1 This is a perspective view of the sliding device according to the first embodiment.

[0019] Figure 2 This is an exploded perspective view of the sliding device according to the first embodiment.

[0020] Figure 3 This is a perspective view of the locking mechanism according to the first embodiment.

[0021] Figure 4This is a perspective view of the fixed guide rail according to the first embodiment.

[0022] Figure 5 This is a perspective view of the movable guide rail according to the first embodiment.

[0023] Figure 6 This is a diagram showing the fitting hole and locking hole of the first embodiment.

[0024] Figure 7 is a diagram showing the locking mechanism, etc., of the first embodiment.

[0025] Figure 8 This is a diagram showing the locking mechanism, etc., of the first embodiment.

[0026] Figure 9 is a diagram showing the first latch and the second latch, etc., of the first embodiment.

[0027] Figure 10 This is a perspective view of the locking mechanism according to the first embodiment.

[0028] Figure 11 This is a perspective view of the locking mechanism according to the first embodiment.

[0029] Figure 12 This is a perspective view of the locking mechanism according to the first embodiment.

[0030] Figure 13 This is a diagram showing the first latch and the second latch, etc., of the first embodiment. Detailed Implementation

[0031] Exemplary embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0032] The following embodiments of the invention illustrate an example of an implementation within the scope of this disclosure. That is, the technical solutions described in the claims are not limited to the specific structures or configurations shown in the following embodiments.

[0033] This embodiment is an example of applying the sliding device of this disclosure to a sliding device for supporting a vehicle seat. The arrows and diagonal lines in the figures are symbols used to indicate direction, to facilitate understanding of the relationships between the figures and the shapes of the components or parts.

[0034] Therefore, the sliding device is not limited to the directions indicated in the figures. The directions shown in the figures are those with the sliding device of this embodiment assembled in the vehicle. The figures marked with diagonal lines do not necessarily represent cross-sectional views.

[0035] Furthermore, for any component or part that is indicated by at least a symbol, at least one such component is provided, unless otherwise stated beforehand as "only one". That is, unless otherwise stated beforehand as "one", there may be two or more such components. The sliding device disclosed herein includes constituent elements such as components or parts indicated by at least a symbol, and at least one of the structural parts shown in the illustrations.

[0036] (First Embodiment)

[0037] <1. Overview of the sliding mechanism>

[0038] like Figure 1 As shown, the sliding device 1 in this embodiment is a device for supporting a seat mounted on a vehicle (hereinafter referred to as a "vehicle seat") so that it can slide. Figure 2 As shown, the sliding device 1 includes at least a fixed guide rail 2, a movable guide rail 3, and a locking mechanism 4 (see reference). Figure 3 Components such as ).

[0039] Fixed guide rail 2 is a non-movable rail component that is directly or indirectly fixed to a vehicle. For example... Figure 4 As shown, a plurality of fitting holes 2A are provided on the fixed guide rail 2. These fitting holes 2A are arranged in a straight line along the longitudinal direction of the fixed guide rail 2.

[0040] In addition, such as Figure 1 As shown, the portion 2B (hereinafter referred to as "fitting portion" 2B) with multiple fitting holes 2A is located at a position opposite to the lower part of the movable guide rail 3 in the left-right direction. Moreover, each fitting hole 2A is formed by a through hole that penetrates the fitting portion 2B in the left-right direction.

[0041] The movable guide rail 3 is a component that is slidably connected to the fixed guide rail 2. A vehicle seat (not shown) is mounted on the movable guide rail 3. Therefore, the vehicle seat is in a slidable state supported by the sliding device 1.

[0042] The locking mechanism 4 is a device used to switch between "the movable guide rail 3 being in a state that allows it to slide relative to the fixed guide rail 2 (hereinafter referred to as the "unlocked state")" and "the state that prevents the movable guide rail 3 from sliding relative to the fixed guide rail 2 (hereinafter referred to as the "locked state")".

[0043] <2. Detailed Composition of the Locking Mechanism>

[0044] <2.1 Composition of Locking Mechanisms, etc.>

[0045] like Figure 5As shown, engaging holes 3A and 3B are respectively provided at positions 3C and 3D in the movable guide rail 3, opposite to the engaging part 2B. Specifically, as... Figure 6 As shown, it is located on one side of the interlocking part 2B ( Figure 6 A locking hole 3A is provided on part 3C (right side).

[0046] On the other side, separated by the fitting part 2B ( Figure 6 A locking hole 3B is provided on part 3D (left side). Furthermore, when the locking mechanism 4 is in the locked state, the locking holes 3A and 3B and the center of the fitting hole 2A are positioned side-by-side in the left-right direction. The center of the hole refers to the center point of the pattern formed by depicting the outer edge of the hole.

[0047] like Figure 3 As shown, the locking mechanism 4 includes at least a first latch 41, a second latch 42, a first spring 44, and a second spring 45. The first latch 41 and the second latch 42 are connected to the movable guide rail 3 in a swingable manner. Furthermore, the first latch 41 and the second latch 42 are connected to the movable guide rail 3 via a bracket 43. This bracket 43 is fixed to the movable guide rail 3.

[0048] The first latch 41 is movable between a locked position (see Figure 7) and an unlocked position (see Figure 8), wherein the locked position is the position where the first latch 41 is engaged with the fitting hole 2A, and the unlocked position is the position where the first latch 41 is disengaged from the fitting hole 2A. Figure 3 As shown, a tapered inclined portion 41A is provided on the first latch portion 41.

[0049] like Figure 9 As shown, when the first latch 41 is in the locked position, the inclined portion 41A is the part that contacts the inner periphery of the fitting hole 2A. That is, the inclined portion 41A is a tapered portion, and its width dimension W gradually decreases as it approaches the front end of the first latch 41.

[0050] The width dimension of the first latch portion 41 refers to the dimension of the portion parallel to the sliding direction of the movable guide rail 3. Furthermore, when the first latch portion 41 is in the locked position, it is in a state where it passes through the engagement hole 2A and the locking hole 3A.

[0051] The second latch 42 is movable between a locked position (see Figure 7) and an unlocked position (see Figure 8). The locked position is when the second latch 42 engages with the fitting hole 2A, and the unlocked position is when the second latch 42 disengages from the fitting hole 2A. Furthermore, when the second latch 42 is in the locked position, as shown in Figure 9, the second latch 42 passes through the fitting hole 2A, the locking hole 3A, and the locking hole 3B.

[0052] Furthermore, the length of the first latch portion 41 is shorter than the length of the second latch portion 42, and when the second latch portion 42 is in the locked position, a gap is created between the second latch portion 42 and the inner circumference of the fitting hole 2A, so that the second latch portion 42 and the fitting hole 2A are in a non-contact state. Additionally, the "length of the first latch portion 41 and the length of the second latch portion 42" refers to the dimensions in a direction orthogonal to the width direction.

[0053] Furthermore, "the length of the first latch portion 41 is shorter than the length of the second latch portion 42" means that "in the locked state, the first latch portion 41 does not completely penetrate the engagement hole 3B, but penetrates the engagement hole 2A and the engagement hole 3A, and the second latch portion 42 is in a state of penetrating the engagement hole 2A, the engagement hole 3A, and the engagement hole 3B."

[0054] Furthermore, under normal circumstances where no large external force is applied to the movable guide rail 3, the sliding of the movable guide rail 3 is restricted because the inclined portion 41A of the first latch portion 41 contacts the fitting hole 2A.

[0055] Furthermore, when a large external force is applied to the movable guide rail 3, the inclined part 41A and the fitting hole 2A are deformed in such a way that the inclined part 41A is embedded in the fitting hole 2A, and the second latching part 42 contacts the locking holes 3A and 3B, thereby restricting the sliding of the movable guide rail 3.

[0056] The second latching part 42 can be independently displaced relative to the first latching part 41. That is, as Figure 2 As shown, the first latch 41 is rotatably connected to the bracket 43 via the first retaining part 41B, which is configured as a door-shaped structure.

[0057] The second latch 42 is rotatably connected to the bracket 43 via a second retaining part 42A configured as a gate. For example... Figure 3 As shown, each bracket 43 is provided with a shaft portion 43A. The shaft portion 43A extends in such a way that its axial direction is parallel to the sliding direction.

[0058] Furthermore, each shaft portion 43A supports the first retaining portion 41B and the second retaining portion 42A so that they can rotate between a locked position and an unlocked position. For this purpose, shaft holes 41C and 42B for inserting the shaft portion 43A are respectively provided on the first retaining portion 41B and the second retaining portion 42A (see reference). Figure 2 ).

[0059] Moreover, such as Figure 3 As shown, the portion 42C of the second holding portion 42A with the shaft hole 42B is located on the opposite side of the bracket 43, across the portion 42D of the first holding portion 41B with the shaft hole 41C.

[0060] The number of first latching portions 41 is less than the number of second latching portions 42. Specifically, there is one first latching portion 41 and multiple second latching portions 42. More specifically, at least one second latching portion 42 is provided on one side and the other side, separated from the first latching portion 41.

[0061] The first spring 44 exerts an elastic force to hold the first latch 41 in the locked position (hereinafter referred to as the "first holding force"). The second spring 45 exerts an elastic force to hold the second latch 42 in the locked position (hereinafter referred to as the "second holding force"). Moreover, the first holding force is less than the second holding force.

[0062] In addition, such as Figure 10 As shown, both the first spring 44 and the second spring 45 are torsion bars that utilize the torsional deformation of wires. Furthermore, one end of the first spring 44 is locked to the first retaining part 41B, and the other end of the first spring 44 is locked to the bracket 43.

[0063] The two ends of the second spring 45 are locked to the movable guide rail 3, and the central part of the second spring 45 is locked to the operating lever 46 provided in the second holding part 42A. The operating lever 46 is the part that applies the operating force F when the first latch part 41 and the second latch part 42 are moved to the unlocked position.

[0064] The operating lever 46 is connected to the second retaining part 42A. That is, the operating force F acts directly only on the second latching part 42. In addition, the operating force F is the operating force of the electric actuator (not shown) or the manual operating force of the user.

[0065] <2.2 Operation of the locking mechanism>

[0066] Actions upon unlocking

[0067] When the operating force F is not applied to the operating lever 46, the first latch 41 and the second latch 42 are both in the locked position due to the elastic force of the first spring 44 and the second spring 45 (see reference). Figure 11 ).

[0068] In this locked state, when the operating force F is applied to the operating lever 46, only the second latch portion 42 initially moves from the locked position to the unlocked position. On the other hand, the first latch portion 41 remains in the locked position and does not move.

[0069] When only the second latch 42 is displaced from the locked position to a predetermined position on the unlocked side, such as Figure 12As shown, the second retaining part 42A or the second latching part 42 contacts the first retaining part 41B. Upon this contact, the first latching part 41 and the second latching part 42 move together toward the unlocked position.

[0070] <Actions during locking>

[0071] When the first latch 41 and the second latch 42 are in the unlocked position, if the operating force F disappears, the first latch 41 and the second latch 42 will jointly displace towards the locked position (see reference). Figure 13 ).

[0072] At this time, when the center position of the fitting hole 2A coincides with the center position of the locking holes 3A and 3B in the left-right direction, the first latching part 41 passes through the fitting hole 2A and the locking hole 3A, and the second latching part 42 passes through the fitting hole 2A and the locking holes 3A and 3B (see Figure 9).

[0073] Assuming that the center position of the fitting hole 2A is offset from the center position of the locking holes 3A and 3B in the left and right direction, the front end of the first latching part 41 and the front end of the second latching part 42 will first hit the fitting part 2B, causing the displacement to temporarily stop.

[0074] Subsequently, when the movable guide rail 3 slides, the center position of the fitting hole 2A coincides with the center position of the locking holes 3A and 3B in the left-right direction. Therefore, the first latching part 41 passes through the fitting hole 2A and the locking hole 3A, and the second latching part 42 passes through the fitting hole 2A and the locking holes 3A and 3B (see Figure 9).

[0075] <3. Features of the sliding device in this embodiment>

[0076] In the sliding device 1 of this embodiment, the length of the first latch portion 41 is shorter than the length of the second latch portion 42, and when the second latch portion 42 is in the locked position, it is in a state of non-contact with the inner circumference of the fitting hole 2A. As a result, the displacement stroke of the first latch portion 41 is shortened in this sliding device 1.

[0077] Therefore, the insertion speed of the first latch 41 is reduced, thereby mitigating the impact force when the first latch 41 penetrates into the fitting hole 2A. Furthermore, since the second latch 42 is in a non-contact state with the inner circumference of the fitting hole 2A, the impact force generated when the second latch 42 penetrates into the fitting hole 2A is sufficiently reduced.

[0078] Furthermore, the number of first latch portions 41 is less than the number of second latch portions 42. As a result, the mass of the components constituting the first latch portion 41 is reduced, thereby ensuring that the impact force when the first latch portion 41 protrudes into the fitting hole 2A is significantly reduced.

[0079] Furthermore, the sliding device 1 includes a bracket 43, which has a shaft portion 43A extending along the sliding direction. The shaft portion 43A supports the first latch portion 41 and the second latch portion 42 so that they can rotate. As a result, the number of components in the sliding device 1 can be reduced or the increase in the number of components can be suppressed.

[0080] Furthermore, the portion 42C of the second retaining portion 42A having a shaft hole 42B is located on the opposite side of the bracket 43, across from the portion 42D of the first retaining portion 41B having a shaft hole 41C.

[0081] Therefore, the larger external force acting on the movable guide rail 3 is first transmitted to the first retaining part 41B via the bracket 43. Then, after the first latching part 41, the first retaining part 41B, and the fitting hole 2A that engages with the first latching part 41 deform, the external force is transmitted to the second retaining part 42A. Thus, the energy generated by the larger external force acting on the movable guide rail 3 can be effectively absorbed.

[0082] Furthermore, the first retaining force is less than the second retaining force. As a result, the operating force required to displace the first latch 41 and the second latch 42 to their respective unlocked positions can be reduced.

[0083] Furthermore, when the first latch 41 and the second latch 42 move from the locked position to the unlocked position, the second latch 42 first moves to the unlocked position to a predetermined position, and then the first latch 41 and the second latch 42 move together to the unlocked position.

[0084] Therefore, the operating force F required for the second latch 42 to displace to a predetermined position on the unlocked side only needs to overcome the elastic force of the second spring 45. Thus, it can be ensured that the operating force F is reduced.

[0085] (Other implementation methods)

[0086] The movable guide rail 3 in the above embodiment is provided with engaging holes 3A and 3B. However, this disclosure is not limited thereto. That is, this disclosure may also employ a structure that eliminates, for example, at least one of the engaging holes 3A and 3B.

[0087] In the above embodiments, the number of first latch portions 41 is less than the number of second latch portions 42. However, this disclosure is not limited thereto. That is, this disclosure may require only at least one first latch portion 41 and at least one second latch portion 42.

[0088] In the above embodiment, the portion 42C of the second retaining portion 42A with the shaft hole 42B is located on the opposite side of the bracket 43, across from the portion 42D of the first retaining portion 41B with the shaft hole 41C. However, this disclosure is not limited to this. That is, this disclosure may also employ a structure in which, for example, the configuration relationship between portions 42C and 42D is reversed from the above embodiment.

[0089] In the above embodiment, the first holding force is configured to be less than the second holding force. However, this disclosure is not limited to this. That is, this disclosure may also employ, for example, a configuration in which the first holding force and the second holding force are the same, or a configuration in which the first spring 44 and the second spring 45 are replaced with a single spring that performs the function of both.

[0090] In the above embodiment, the second latch portion 42 is configured to first move to a predetermined position towards the unlocked position, and then the first latch portion 41 and the second latch portion 42 are moved integrally towards the unlocked position. However, this disclosure is not limited thereto.

[0091] In the above embodiments, the vehicle seats disclosed herein are applied to vehicles. However, the application of the invention disclosed herein is not limited thereto. That is, this disclosure can also be applied to seats used in vehicles such as railway vehicles, ships, and aircraft, as well as fixed seats used in theaters or homes.

[0092] Furthermore, this disclosure is not limited to the embodiments described above, as long as it conforms to the spirit of the invention. Therefore, it can be a structure composed of at least two of the above embodiments, or it can be a structure that eliminates any one of the constituent elements illustrated in the above embodiments, or it can be a structure that eliminates any one of the constituent elements indicated by the symbols in the above embodiments.

Claims

1. A sliding device for supporting a seat in a sliding manner, the sliding device being characterized by comprising: A fixed guide rail, which cannot be moved, and has multiple fitting holes along its longitudinal direction; A movable guide rail is slidably connected to the fixed guide rail, and the seat is mounted on the movable guide rail. The first latching part is connected to the movable guide rail in a manner that allows it to move between a locked position and an unlocked position. The locked position is a position in which it engages with the first engagement hole in the engagement hole, and the unlocked position is a position in which it disengages from the first engagement hole. The first latching part is provided with a tapered inclined portion, which contacts the inner circumferential surface of the first engagement hole when it is in the locked position. The second latch is connected to the movable guide rail in a manner that allows it to be displaced between a locked position and an unlocked position, wherein the locked position is a position that engages with a second engagement hole in the engagement hole, and the unlocked position is a position that disengages from the second engagement hole, and the second latch includes at least one second latch that is capable of being displaced independently relative to the first latch. A first spring, the first spring being used to exert an elastic force to hold the first latch in its locked position; and A second spring, which exerts an elastic force to hold the second latch in its locked position, and The length of the first latch is shorter than the length of the second latch, and when the second latch is in its locked position, the second latch is in a state of non-contact with the inner periphery of the second fitting hole.

2. The sliding device according to claim 1, characterized in that, The movable guide rail has a side portion and a side portion, which are respectively opposite to the two sides of the fitting portion. The fitting portion is the part of the fixed guide rail that has the fitting hole. Engaging holes are provided at one side and the other side, respectively, and the first latch and the second latch can pass through the engaging holes. When the first latch is in its locked position, the first latch extends through the first engagement hole of the engagement hole and the first engagement hole of the engagement hole on one side. Furthermore, when the second latch is in its locked position, the second latch extends through the second engagement hole of the engagement hole, the second engagement hole of the engagement hole on one side, and the third engagement hole of the engagement hole on the other side.

3. The sliding device according to claim 1, characterized in that, The number of the first latches is less than the number of the second latches.

4. The sliding device according to any one of claims 1 to 3, characterized in that, The sliding device includes a bracket fixed to the movable guide rail. The bracket has a shaft portion that supports the first latch portion and the second latch portion so that they can rotate between their respective locked and unlocked positions.

5. The sliding device according to claim 4, characterized in that, The sliding device also includes: A first retaining portion, wherein the first retaining portion is disposed in the first latching portion and has a shaft hole through which the shaft portion passes; and The second retaining part is disposed in the second latching part and has a shaft hole for the shaft part to be inserted. The portion of the second retaining part with the shaft hole is located on the opposite side of the bracket, separated from the portion of the first retaining part with the shaft hole.

6. The sliding device according to any one of claims 1 to 3, characterized in that, The elastic force of the first spring in maintaining the first latch in its locked position is less than the elastic force of the second spring in maintaining the second latch in its locked position.

7. The sliding device according to claim 6, characterized in that, When the first latch and the second latch move from their respective locked positions to the unlocked position side, the second latch first moves to the unlocked position side to a predetermined position, and then the first latch and the second latch move together to the unlocked position side.

Images