Lock device and storage device

The locking device uses an asymmetrically shaped torque application member to adjust sliding torques for advancement and retreat, addressing complexity and cost issues in existing designs.

JP2025130438APending Publication Date: 2025-09-08NIHON PLAST CO LTD
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Patent Information

Application Number
JP2024027601
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-27
Publication Date
2025-09-08

AI Technical Summary

Technical Problem

Existing locking devices require complex structures and high manufacturing costs to adjust sliding torques for the advancement and retreat of a locking member due to precise thickness and contact adjustments of elastic pieces.

Method used

A locking device with a torque application member formed into an asymmetric shape using a flexible material, which generates different sliding torques for advancement and retreat by varying the overlap with an opposing member.

Benefits of technology

Enables inexpensive setting of different sliding torques for the advancement and retreat of the locking member, simplifying the configuration and reducing manufacturing costs while improving operational feel.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a lock device capable of having different slide torque set at low cost for forward / backward movements of a rod, and a storage device with the same.SOLUTION: A lock device 1 comprises a torque addition member 32 which generates slide torque as a rod 10 moves forward / backward by a forward / backward movement mechanism 11. The toque addition member 32 is formed of a flexible member in an asymmetrical shape, which is so set that the rod 10 has larger slide torque when moving forward than when moving backward.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a locking device that can lock a second member to a first member and can release this lock in response to the advancement and retreat of a locking member, and to a storage device equipped with the same. [Background technology]

[0002] Conventionally, a locking device has been used in a storage device, such as a glove box mounted on a vehicle such as an automobile, that locks a second member, a lid, to a first member, a main body, so that the device can be opened and closed. Among such locking devices, one that improves the operational feel by varying the sliding torque of a rod, which is a locking member, when the rod is operated to an open state and when the rod is operated to a closed state. In this configuration, an elastic piece is provided on the rod, and a rib-shaped abutting piece is provided on an opposing member facing the rod, the abutting piece having a sliding surface that slides against the elastic piece as the rod advances and retreats. The sliding surface of the abutting piece is formed so that the amount of protrusion of the abutting piece gradually decreases in the retraction direction of the rod. The abutment between the elastic piece and the sliding surface of the abutting piece is set so that the sliding torque when the device is operated to an open state is smaller than when the device is operated to a closed state (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-23995 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-described configuration, in order for the elastic piece to come into contact with the sliding surface of the abutting piece to obtain the desired sliding torque, it is necessary to finely adjust the thickness and length of the elastic piece, and also to adjust the amount of contact with the abutting piece (overlap), etc., which results in a complex structure and is one of the factors that increases manufacturing costs.

[0005] The present invention has been made in consideration of the above points, and has as its object to provide a locking device that can inexpensively set different sliding torques for the advancement and retreat of a locking member, and a storage device equipped with the same. [Means for solving the problem]

[0006] A locking device according to one aspect of the present invention comprises a locking member and an advancing / retreating mechanism for advancing and retracting the locking member, and is capable of locking a second member to a first member and unlocking the first member in accordance with the advancement and retreat of the locking member, and is further provided with a torque application member that generates a sliding torque as the locking member advances and retreats due to the advancement and retreat mechanism, the torque application member being formed into an asymmetric shape using a flexible member, and the asymmetric shape is set so that the sliding torque when the locking member advances is greater than the sliding torque when the locking member retracts. [Effects of the Invention]

[0007] According to the present invention, different sliding torques can be set inexpensively for the advancement and retreat of the locking member. [Brief explanation of the drawings]

[0008] [Figure 1] 1A and 1B are end views showing a locking device according to a first embodiment of the present invention, in which FIG. 1A shows a state in which a locking member has moved in an advancing direction, and FIG. 1B shows a state in which the locking member has moved in a retracting direction. [Figure 2] 3A and 3B show a torque application member of the locking device, in which FIG. 3A is a perspective view thereof and FIG. 3B is a plan view thereof. [Figure 3] 1A is an exploded perspective view showing a part of the locking device from one side, and FIG. 1B is an exploded perspective view showing a part of the locking device from the other side. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is an exploded perspective view showing an example of a storage device equipped with the same locking device. [Figure 7]FIG. 2 is a perspective view showing an example of the same storage device. [Figure 8] 4 is a graph showing an example of the relationship between the movement amount of the locking member of the locking device and the sliding resistance. [Figure 9] FIG. 10 is an end view showing a locking device according to a second embodiment of the present invention. [Figure 10] FIG. 3 is a perspective view showing a torque application member of the locking device. DETAILED DESCRIPTION OF THE INVENTION

[0009] A first embodiment of the present invention will be described below with reference to the drawings.

[0010] In FIGS. 6 and 7 , reference numeral 1 denotes a locking device. The locking device 1 is capable of locking a second member to a first member and unlocking the lock. For example, the first member and the second member are used in any opening / closing device or storage device. In the illustrated example, the locking device 1 is used in a storage device 2. The storage device 2 is, for example, a glove box for a vehicle. The storage device 2 includes a main body 4, which is a first member having an opening 3, and a lid member 5, which is a second member that opens and closes the opening 3 of the main body 4. The locking device 1 is disposed in either the main body 4 or the lid member 5. In this embodiment, the locking device 1 is disposed in the lid member 5. The lid member 5 has multiple members, for example, an inner member 5a and an outer member 5b, and the locking device 1 is mainly disposed in the space between the inner member 5a and the outer member 5b in the lid member 5. The locking device 1 locks the lid member 5 to the main body 4 while closing the opening 3, and when unlocked, the lid member 5 can open the opening 3.

[0011] In the following, the front-to-back, left-to-right, and up-down directions are defined based on the direction in which the storage device 2 is viewed from the user's side, with the direction of the arrow FR in the figure, which is the user's side, being the front side or near side, and the opposite direction, the direction of the arrow RR, being the rear side or back side, with the directions of the arrows L and R in the figure being the left-to-right directions and the directions of the arrows U and D being the up-to-down directions.

[0012] As shown in FIGS. 4 and 5, the locking device 1 includes a rod 10 which is a locking member, and an advancing / retracting mechanism 11 for advancing and retracting the rod 10.

[0013] The rod 10 is an elongated member also referred to as a lock portion, a pin, or a latch portion. The rod 10 is capable of sliding in a predetermined direction, and is a sliding member that locks the first member and the second member by inserting and removing one end (tip end) thereof into and from a lock receiving portion 13 (shown in FIGS. 1(a) and 1(b)), which is a receiving portion such as a hole provided in the other of the first member and the second member, in this embodiment, the first member (main body portion 4 (shown in FIGS. 1(a) and 1(b))). In this embodiment, the rod 10 is capable of sliding in its longitudinal direction. That is, in this embodiment, the predetermined direction is the longitudinal direction of the rod 10, which is the left-right direction in the illustrated example.

[0014] In this embodiment, the rods 10 are set as a pair. One rod 10a and the other rod 10b are positioned side by side in the longitudinal direction, i.e., the left-right direction. In the illustrated example, the left-side rod 10a is longer than the right-side rod 10b, but the length relationship between the first and second rods 10a and 10b may be set as desired. Furthermore, the first rod 10a has a crank-like bent shape at the middle portion of its longitudinal direction. However, this is not limiting and any shape is acceptable as long as it is basically long and can be moved back and forth in the longitudinal direction. For clarity of explanation, hereinafter, unless otherwise specified, either or both of the first and second rods 10a and 10b may be simply referred to as rods 10.

[0015] The advancing / retreating mechanism 11 that advances and retreats the rod 10 may have any configuration. When one rod 10a and the other rod 10b are provided as in the present embodiment, the advancing / retreating mechanism 11 may be configured to move the one rod 10a and the other rod 10b in opposite directions so that the advancement and retreat of the one rod 10a and the other rod 10b is linked.

[0016] As shown in FIGS. 4 to 6, in this embodiment, the advancing / retreating mechanism 11 includes a base 15. The base 15 is also called a base portion, a body portion, a lock base, etc., and is attached integrally to either the first member or the second member, which in this embodiment is the second member (lid member 5). For example, the base 15 is supported by being sandwiched between the inner member 5a and the outer member 5b of the lid member 5 in the front-rear direction. In the illustrated example, the base 15 is formed as a separate member from either the first member or the second member, but this is not limiting and the base 15 may be formed integrally with the first member or the second member.

[0017] In this embodiment, the advance / retreat mechanism 11 also includes an interlocking member 16 for interlocking the rods 10a and 10b. The interlocking member 16 is a rotating body also known as a rotor. The interlocking member 16 interlocks the rods 10 to move in opposite directions when rotated. The interlocking member 16 is attached to the base body 15 together with the rods 10. The interlocking member 16 is rotatably supported by a support shaft 17 formed on the base body 15. In this embodiment, the support shaft 17 protrudes, for example, from the rear of the base body 15, or in the illustrated example, on the side of the base body 15 facing the inner member 5a, and the interlocking member 16 is rotatable left and right about the support shaft 17. In other words, the interlocking member 16 is located rearward relative to the base body 15.

[0018] The interlocking member 16 has a supported portion 20 supported by the support shaft 17 and a pair of arm portions 21 extending radially from the supported portion 20 .

[0019] In the illustrated example, the supported part 20 is formed in a cylindrical shape, and the support shaft 17 is inserted from the front side to the rear side. The pair of arms 21 extend on opposite sides of the center of the supported part 20, i.e., the rotation center of the interlocking member 16. In other words, the pair of arms 21 are located on one side and the other side of the rotation center of the interlocking member 16. The other end (base end) of the rod 10 is connected to each arm 21. In this embodiment, the arms 21 are located above and below the supported part 20. When connected to the arms 21, the rod 10 is located at the rear of the base 15.

[0020] Preferably, interlocking member 16 is biased in the rotational direction by biasing means 22 to apply a preload. Biasing means 22 is an elastic member such as a coil spring or a torsion spring, and is held by support shaft 17 on the front side of interlocking member 16, i.e., between interlocking member 16 and base body 15, with one end fixed to base body 15 and the other end fixed to interlocking member 16 or rod 10. In this embodiment, the other end of biasing means 22 is engaged with a retaining portion 23 formed on the base end of one of rods 10a. The biasing direction of interlocking member 16 by biasing means 22 is a direction in which interlocking member 16 is maintained in the locked state by locking device 1.

[0021] In this embodiment, the rod 10 is moved by the operation of an operating unit 24, which is operated by a user such as a vehicle occupant when releasing the lock. The operating unit 24 is also called a handle member, an operating handle, or a knob. The operating unit 24 is movably provided on the base 15 and is exposed from either the first member or the second member to which the locking device 1 is attached (the second member (cover member 5) in this embodiment). By operating relative to the base 15 in response to a user's operation, the operating unit 24 retracts the rod 10 from the lock receiving portion 13 (shown in FIGS. 1(a) and 1(b)) and releases (unlocks) the lock set by the locking device 1. The pair of rods 10 are integrally linked by the linking member 16, so that the operating unit 24 can retract the rod 10 in the unlocking direction by applying an external force to either the rod 10 or the linking member 16. The operating unit 24 may be configured to be slidable relative to the base 15 as long as it operates to change its position or posture relative to the base 15, but in this embodiment, the operating unit 24 is supported on the front of the base 15 and is rotatable left and right.

[0022] A pressure applying portion 26 protrudes from the rear portion of the operating portion 24, i.e., the side facing the base body 15, and this pressure applying portion 26 is inserted from the front to the rear into a hole 27 formed in the base body 15, and faces a pressure receiving portion 28 of the other rod 10b in the left-right direction at the rear position of the base body 15. That is, in this embodiment, the other rod 10b is a rod that is operated by receiving an external force directly from the operating portion 24, and the one rod 10a is a driven rod that is operated indirectly via the interlocking member 16 in response to the operation of the operating portion 24. The pressure receiving portion 28 protrudes, for example, from the lower portion of the other rod 10b.

[0023] In the illustrated example, at least one of the rods 10, for example the other rod 10b, is guided in the forward and backward directions by the base 15. That is, the base 15 is formed with a guide portion 30 that guides the rod 10. The guide portion 30 is also called a slider portion. The guide portion 30 is formed with a U-shaped cross section with an open rear portion. That is, the guide portion 30 is formed with portions facing the upper, front, and lower portions of the other rod 10b, and extends in the left-right direction. The guide portion 30 is located close to the pressure-receiving portion 28.

[0024] In the present embodiment, the locking device 1 is provided with a torque application member 32 that generates a sliding torque as the rod 10 is advanced or retreated by the advance / retract mechanism 11. The torque application member 32 is disposed at an arbitrary position that changes relative position when the rod 10 advances or retreats. In the present embodiment, the torque application member 32 is disposed on at least one of the rod 10 and the opposing member 33 facing it (e.g., on the rod 10 in the illustrated example), and is in contact with the other of the rod 10 and the opposing member 33 (e.g., the opposing member 33 in the illustrated example). When there are multiple rods 10, the torque application member 32 may be disposed on any of the rods 10; for example, in the present embodiment, the torque application member 32 is disposed on the other rod 10b. In the illustrated example, the torque application member 32 is formed separately from the other rod 10b and attached to the other rod 10b; however, this is not limiting and the torque application member 32 may be formed integrally with the rod 10 by, for example, insert molding or two-color molding.

[0025] The torque application member 32 is formed of a flexible material, preferably a soft material such as a soft resin, and at least the front portion facing the opposing member 33 has an asymmetrical shape. This asymmetrical shape is set so that the sliding torque when the rod 10 advances is greater than the sliding torque when the rod 10 retracts. For example, as shown in FIGS. 2(a), 2(b), 3(a), and 3(b), the torque application member 32 of this embodiment is formed in a block shape having a protrusion 35 that is asymmetric in the left-right direction, which is the direction in which the rod 10 advances and retreats. In the illustrated example, the torque application member 32 is in the shape of a rectangular parallelepiped, and the protrusion 35 forms one surface of the block. The protrusion 35 is formed such that it faces the direction in which the rod 10 advances, that is, to the right, which is the direction in which the other rod 10b advances in this embodiment, and the amount of protrusion in the front-rear direction, which is a direction intersecting the advancement direction, gradually increases (gradually changes). That is, in the illustrated example, the protrusion 35 is set to form an asymmetric arcuate surface (curved surface) that is curved so that the forward protrusion amount increases toward the right.

[0026] 1(a) and 1(b), in this embodiment, the protrusion 35 of the torque application member 32 is located in front of the rod 10 (the other rod 10b), faces the opposing member 33 that constitutes the front surface of the guide part 30 of the base body 15 in the front-rear direction, and constantly maintains contact with this opposing member 33 over the entire range of advancement and retreat of the other rod 10b. Note that in FIGS. 1(a) and 1(b), the protrusion 35 is shown by a two-dot chain line with an exaggerated inclination to clearly show the interference state (overlap) with the opposing member 33, but in reality, the protrusion 35 elastically deforms into a shape that follows the rear surface of the opposing member 33 upon contact with the rear surface of the opposing member 33, and generates a sliding torque according to the amount of deformation.

[0027] Therefore, in this embodiment, an attachment portion 37 is formed in the rear portion of the torque application member 32, opposite the protrusion 35, and this attachment portion 37 is attached to an attachment receiving portion 38 in the front portion of the rod 10 (the other rod 10b). The attachment portion 37 and the attachment receiving portion 38 are configured to fit together, and this fit restricts the vertical and horizontal position of the torque application member 32 relative to the other rod 10b. As shown in FIGS. 2(a), 2(b), 3(a), and 3(b), the attachment portion 37 is formed in a groove shape that is elongated in the horizontal direction, and the attachment receiving portion 38 is formed in a recess into which the vertical and horizontal outline of the torque application member 32 fits, and a rib-like protrusion 39 that fits into the attachment portion 37 is protruded from the interior of the attachment receiving portion 38. However, the attachment portion 37 and the attachment receiving portion 38 may be formed in accordance with the opposing positions of the rod 10 and the opposing member 33.

[0028] 1 to 6, the locking device 1 is attached by fitting the torque application member 32 into the attachment receiving portion 38 of the other rod 10b, and after connecting the first and second rods 10a, 10b to the arms 21, 21 of the interlocking member 16, the supported portion 20 of the interlocking member 16 is rotatably supported on the support shaft 17 of the base body 15 together with the biasing means 22. In this embodiment, one end of the biasing means 22 is connected to the base body 15, and the other end is connected to the holding portion 23 of one rod 10a. By fitting the other rod 10b into the guide portion 30 of the base body 15, the protrusion 35 of the torque application member 32 protruding forward from the attachment receiving portion 38 abuts against the opposing member 33.

[0029] Furthermore, the operating part 24 is rotatably assembled to the base body 15 from the front part of the base body 15 while the pressure part 26 is inserted into the hole part 27, and the pressure part 26 is opposed to the pressure receiving part 28 of one of the rods 10a.

[0030] The locking device 1 assembled in this manner can be attached to the storage device 2 (shown in Figure 7) by attaching the base 15 to the first or second member, for example, the inner member 5a of the cover member 5 in this embodiment, and covering it with the outer member 5b.

[0031] In the locking device 1, the one and other rods 10a, 10b are urged by the urging means 22 in directions away from the base 15, i.e., in the advancing direction. When the cover member 5 is in the position where it closes the opening 3, the tip of the rod 10 is held inserted in the lock receiving portion 13, as shown in FIG. 1(a), and the cover member 5 is locked to the main body 4.

[0032] Furthermore, when releasing the lock provided by the locking device 1, the user rotates the operating unit 24, causing the pressure portion 26 of the operating unit 24 to come into contact with the pressure-receiving portion 28 of the other rod 10b and press the other rod 10b to the left via the pressure-receiving portion 28, which causes the other rod 10b to move leftward along the guide portion 30 and retract from the lock receiving portion 13, as shown in FIG. 1(b). At the same time, the interlocking member 16, which connects the other rod 10b and the arm portion 21, is pushed in so as to rotate against the bias of the biasing means 22, causing the interlocking member 16 to rotate about the support shaft 17. As the interlocking member 16 rotates, the one rod 10a connected to the arm portion 21 is pulled to the right and moves rightward and retracts from the lock receiving portion 13. In other words, the pair of rods 10 move in opposite directions via the interlocking member 16, and the tip of the rod 10 is pulled out of the lock receiving portion 13, thereby releasing the lock provided by the locking device 1.

[0033] In this way, the torque application member 32 slides against the opposing member 33 in response to the advancement and retreat of the rod 10, generating a sliding torque.

[0034] In this embodiment, the torque application member 32 is formed from a flexible member into an asymmetric shape, and specifically, an asymmetric protrusion 35 is formed on the torque application member 32 such that the amount of protrusion in a direction intersecting the advancing direction gradually increases in the advancing direction of the rod 10. The protrusion 35 is disposed so as to contact the opposing member 33, so that when the rod 10 (the other rod 10b) moves in the advancing direction, as shown in Fig. 1(a), for example, the overlap of the protrusion 35 with the opposing member 33 increases in the advancing direction, and a self-boosting effect occurs such that the torque application member 32 is drawn to the opposing member 33 as the rod 10 advances, increasing the sliding resistance, i.e., the sliding torque (as shown in graph G1 in Fig. 8), and slowing the advancing speed of the rod 10. This can also reduce impact noise (low-pitched noise) that occurs when the tip of the advanced rod 10 bottoms out against the lock receiving portion 13.

[0035] Furthermore, as shown in FIG. 1(b), when the rod 10 (the other rod 10b) moves in the advancing direction, the overlap of the protrusion 35 with the opposing member 33 is small in the retreating direction, so that the sliding resistance, i.e., the sliding torque, is reduced (as shown in graph G2 in FIG. 8), and the operating load of the operating part 24 is reduced.

[0036] In other words, the asymmetric shape of the torque application member 32 is set so that the sliding torque when the rod 10 advances is greater than the sliding torque when the rod 10 retracts. Therefore, with a simple configuration that simply adjusts the asymmetric shape of this torque application member 32, different sliding torques can be set inexpensively for the advancement and retreat of the rod 10.

[0037] Specifically, in this embodiment, simply by setting the amount of protrusion of the protrusion 35, different sliding torques can be set inexpensively for the advancement and retreat of the rod 10.

[0038] Therefore, compared to cases where resistance is set against the advancement and retreat of the rod 10 using a biasing means such as a spring or an oil damper, or where sliding resistance is increased by adding a soft material to the sliding portion of the interlocking member 16, not only can the configuration be simplified and the number of parts reduced, resulting in a low-cost configuration, but it can also prevent the setting of the sliding torque in one of the advancement and retreat directions from affecting the sliding torque in the other direction.

[0039] Next, a second embodiment will be described with reference to Figures 9 and 10. Note that the same components and functions as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

[0040] The torque application member 32 of the second embodiment has a plurality of recesses 41 recessed in a direction intersecting the advancing / retracting direction of the rod 10. The recesses 41 are located in the torque application member 32 at positions that come into contact with the other of the opposing member 33. In the example shown in the figure, the recesses 41 are formed in the front part of the torque application member 32 that faces the opposing member 33, and are recessed rearward.

[0041] The recesses 41 are formed as slits of the same shape (same width and depth) and penetrate the torque application member 32 in the vertical direction. In the example shown in the figure, the recesses 41 are recessed to a position where they communicate with the attachment portion 37 formed at the rear of the torque application member 32.

[0042] The recesses 41 are arranged with spacing 42 that increases toward the right, which is the advancing direction of the rod 10, or in this embodiment, the advancing direction of the other rod 10b, so that the sliding torque when the rod 10 advances is greater than the sliding torque when the rod 10 retreats. That is, in this embodiment, the recesses 41 are arranged densely (concentratedly) on the left side of the torque application member 32 and sparsely (sparsely) on the right side, and are arranged biased toward the left side. Therefore, at least the front portion of the torque application member 32 that faces the opposing member 33 has an asymmetric shape in the left-right direction, and the rigidity of the left side where the recesses 41 are densely arranged is lower than the rigidity of the right side where the recesses 41 are sparsely arranged.

[0043] Therefore, in this embodiment, when the rod 10 (the other rod 10b) moves to the right, which is the advancing direction, the torque application member 32 is less likely to deform due to sliding against the opposing member 33 because the spacing 42 of the recesses 41 is relatively wide and the rigidity is high, so the sliding resistance, i.e., sliding torque, increases, and the advancing speed of the rod 10 is reduced. Also, when the rod 10 (the other rod 10b) moves in the advancing direction, the torque application member 32 is more likely to deform due to sliding against the opposing member 33 because the spacing 42 of the recesses 41 is relatively narrow and the rigidity is low, so the sliding resistance, i.e., sliding torque, is reduced, and the operating load of the operating unit 24 is reduced.

[0044] In this way, by having a configuration similar to that of the first embodiment, such as by setting the asymmetric shape of the torque application member 32 so that the sliding torque when the rod 10 advances is greater than the sliding torque when the rod 10 retracts, it is possible to inexpensively set different sliding torques for the advancement and retreat of the rod 10 with a simple configuration that simply involves adjusting the asymmetric shape of the torque application member 32, and it is possible to achieve the same effects as those of the first embodiment.

[0045] Specifically, in this embodiment, simply by setting the arrangement interval 42 of the recessed portions 41, different sliding torques can be set inexpensively for the advancement and retreat of the rod 10.

[0046] In the second embodiment, the recess 41 may be configured so that the sliding torque when the rod 10 advances is greater than the sliding torque when the rod 10 retreats, for example, by making its shape (width and / or depth) asymmetric in the left-right direction.

[0047] Furthermore, the recess 41 may be formed in the protrusion 35 of the first embodiment. That is, the first embodiment and the second embodiment may be combined.

[0048] Furthermore, in each embodiment, the torque application member 32 may be attached to the opposing member 33 .

[0049] Furthermore, the torque application member 32 may be surface-treated, such as with grain or with counter-grain, so that the sliding resistance, i.e., sliding torque, when the rod 10 advances is greater than the sliding resistance, i.e., sliding torque, when the rod 10 retracts, by using an asymmetric shape, such as sawtooth.

[0050] The opposing member 33 is not limited to the base body 15, but may be any member that faces the rod . [Industrial Applicability]

[0051] The present invention is suitably used in a locking device that locks a cover member of a storage device for a vehicle, for example. [Explanation of symbols]

[0052] 1 Locking device 2 Storage device 3 Opening 4. Main body, the first member 5. The second member, the cover member 10 Rod as locking member 11 Advancement / retraction mechanism 32 Torque applying member 33 Opposing member 35 Protrusion 41 Recess 42 Placement Spacing

Claims

1. A locking device comprising a locking member and an advancing / retracting mechanism for advancing and retracting the locking member, capable of locking a second member to a first member and releasing the lock in accordance with the advancing and retracting of the locking member, a torque application member that generates a sliding torque in accordance with the advancement and retreat of the locking member by the advancement and retreat mechanism, The torque application member is formed of a flexible member into an asymmetric shape, and the asymmetric shape is set so that the sliding torque when the locking member advances is greater than the sliding torque when the locking member retracts. A locking device characterized by:

2. The torque application member is disposed on at least one of the locking member and the opposing member that faces the locking member in a direction intersecting the direction of advancement and retreat of the locking member, and is in contact with the other.

2. The locking device according to claim 1.

3. The torque application member has a protruding portion formed in a shape that protrudes more in the direction of advancement of the locking member, at a position where it contacts the other of the locking member and the opposing member.

3. The locking device according to claim 2.

4. The torque application member has a plurality of recesses recessed in a direction intersecting the advancing / retracting direction of the locking member at positions where the torque application member contacts the other of the locking member and the opposing member, and the intervals between these recesses are set to become wider as the locking member advances.

3. The locking device according to claim 2.

5. a first member having an opening, a main body portion; a cover member that is a second member that can open and close the opening; a locking device according to any one of claims 1 to 4, which is provided on either the main body or the lid member and locks the lid member to the main body in a state where the opening is closed; A storage device comprising:

Citation Information

Patent Citations

  • Lock device

    JP2013023995A