JP5058963B2 - Locking device - Google Patents

Description

  The present invention relates to a lock device that locks a movable member with respect to a fixed member.

  For example, as shown in FIG. 2, a lock device for a cup holder provided in a center console of an automobile interior as a lock device that locks a movable member that is movable between an open position and a closed position with respect to a fixed member. There is.

  The cup holder 8 has a structure capable of opening and closing an upper opening of the housing portion 9 with a lid 10 which is a movable member, with the housing portion 9 housing a beverage container (not shown) as a fixed member. . The lock device 1 is disposed above the accommodating portion 9, and the lock device 1 has a lock claw 4 that locks the lid 10 in the closed position by being fitted into the locked portion 11 of the lid 10, and an operation A release button 3 for releasing the locking claw 4 by pressing the portion 3a is provided.

  As locking devices, there are various locking devices as described in Japanese Patent Application Laid-Open No. 2006-015881 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2004-324075 (Patent Document 2). In any of these lock devices, the advancing / retreating direction of the lock claw and the lifting / lowering direction of the release button are orthogonal to each other, and the lock claw is retracted by pushing the operation part of the release button, so that the lock claw and the locked part It is the structure by which the latching is released.

  By the way, when driving the automobile, when the driver pushes and operates the operation part of the release button of the lock device, the driver operates without relying on the feeling of the fingertip without gazing at the operation part. In addition, at night, the operation unit becomes more difficult to see, so it is important to operate with the fingertips being used.

  Thus, in order to enable an operator such as a driver to push and operate the operation part of the release button even during driving or at night, the operation part has an operation area of a certain size. For example, as shown in FIG. 3, a rectangular locking device 100 in which the operation unit 300a of the release button 300 is long in the left-right direction when viewed from above is put into practical use.

  The lock device 100 includes a case 200, a release button 300, a lock claw 400, a connecting pin 500 that connects them, and a spring 700 that biases the release button 300 upward.

  The release button 300 includes an operation unit 300a disposed above the upper wall of the case 200, and a pair of left and right legs 300b projecting downward from the operation unit 300a and extending into the case 200.

  In addition, the lifting and lowering of the release button 300 is guided by inserting the leg portion 300b through a pair of left and right through holes 200a provided through the upper wall of the case 200.

  The lock claw 400 is housed in the case 200 and has a base end portion 400a disposed between the leg portions 300, and a front end portion 400b that protrudes forward from the base end portion 400a and extends to the outside of the case 200. It consists of.

  Further, the guide plate 600 protruding upward from the lower wall of the case 200 restricts the swinging of the guide plate 400d protruding downward from the base end portion 400a in the left-right direction. The wall and the upper end of the guide plate 600 restrict the vertical swing of the base end portion 400a. Thereby, the advance and retreat of the lock claw 400 is guided.

The spring 700 is urged in a compressed state between the upper wall of the case 200 and the operation portion 300a of the release button 300, and the urging force urges the release button 300 to the ascending reference position.
JP 2006-015881 A JP 2004-324075 A

However, in the conventional locking device 100 shown in FIG. 3 described above, as shown in FIG. 3C, the vertical swing of the base end portion 400a is restricted between the upper wall of the case 200 and the upper end portion of the guide plate 600. Therefore, in order to suppress the vertical swing of the lock claw 400, the gap s ₁ between the upper surface of the base end portion 400a of the lock claw 400 and the lower surface of the upper wall of the case 200 is set as much as possible. It needs to be small.

However, when molding the case 200 for inward fall in the upper wall of the casing 200 is generated, it is difficult to manage the gap s ₁ to a smaller value. Further, the inward fall during molding with minimal even as small as possible the gap s _1, deformation of the upper top surface of the base end portion 400a at the time of press-fitting the connecting pin 500 into the through hole 400c of the base end portion 400a by it can not be secured a gap s _1, between the lower surface of the upper wall of the upper surface and the case 200 of the base end portion 400a, there is a case where the contact surface as the resistance of the advancing and retracting of the lock claw 400 is formed.

Deformation amount of the base end portion 400a at the time of press-fitting the connecting pin 500 is, manufacturing accuracy and the connecting pin 500, to change by the influence of drilling accuracy and the like of the through hole 400c, is difficult to reduce manage the gap s ₁ It has become.

Further, as shown in FIG. 3C, the release button 300 is urged to the rising reference position by the urging force of the spring 700, and as shown in FIG. 3D, the operation unit 300a of the release button 300 is pushed. When operated, the spring 700 contracts and the urging force of the spring 700 is further increased. As the urging force increases, the upper wall of the case 200 is deformed downward. Thus it can not be secured a gap s _1, between the lower surface of the upper wall of the upper surface and the case 200 of the base end portion 400a, there is a case where the contact surface as the resistance of the advancing and retracting of the lock claw 400 is formed.

Further, as shown in FIG. 3 (c), the gap s ₂ for reducing the resistance of the lifting of the leg portion 300b is formed between the leg portion 300b and the through holes 200a. By this gap s ₂ is formed, when pressed to the left and right ends of the operating portion 300a of the release button 300, as shown in FIG. 3 (d), the pressing operation by the side legs The part 300b is inclined.

  When the leg portion 300b is inclined, the side surface of the leg portion 300b and the upper end and / or the lower end of the through hole 200a are in contact with each other, or the tip end side of the leg portion 300b is in contact with the side wall of the lock claw 400 and / or the case 200. Thus, a contact surface is formed. There is a problem that it becomes difficult to push the operation portion 300a because these contact surfaces become resistances for raising and lowering the leg portion 300b.

Usually, the size of the gap s ₂ is determined by the relationship between the thickness of the upper wall of the casing 200 through holes 200a are formed, the distance from the upper wall of the case 200 to the operation unit 300a of the release button 300, Generally, it is set so that the lateral deflection of the upper surface of the operation unit 300a is 0.2 mm or less. If this shake is larger than 0.2 mm, the feeling of shakiness at the time of operation is great, leading to a decrease in the feeling of operation.

Considering the performance of the spring 700, the distance from the upper wall of the case 200 to the operation unit 300a of the release button 300 needs to be about 5 to 10 mm. When the deflection in the lateral direction of the upper surface of the operation portion 300a of the release button 300 to 0.2mm or less in this state, for example, the case 200 having a thickness of 2 mm, the gap _{s 2} is about 0.02 mm. For the gap is too small for the lifting of the gap s ₂ The legs 300b, causing problems related to sliding failure of the release button.

Furthermore, when this locking device 100 is used in a passenger compartment of a car having a severe temperature environment, it is considered desirable to secure 0.06 mm or more as the gap s ₂ in consideration of thermal expansion or the like. gaps s ₂ of the conventional locking device 100 as described above has not become a gap s ₂ which can satisfy this.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lock device that can smoothly push and operate an operation portion of a release button.

  Hereinafter, each means suitable for solving the above-described problems will be described with additional effects and the like as necessary.

The locking device of the present invention includes a case having a plate-like frame composed of a pair of left and right side walls, an upper wall, and a lower wall, and is capable of moving forward and backward in the forward and backward directions with respect to the case, and is engaged with a mating member at a forward reference position advanced A lock claw that can move up and down with respect to the case, and a release that releases the lock claw by retreating the lock claw from the forward reference position by descending from the raised reference position A button, a connecting pin that penetrates and connects the release button, the lock claw, and the case so that the lock claw moves backward or forward as the release button descends or rises, and the lowered release button moves upward An urging member for urging to return to the rising reference position,
The release button includes an operation portion disposed above the upper wall of the case, and a pair of left and right leg portions projecting downward from the operation portion and extending into the case. The lock claw is housed in the case and is provided with a base end portion disposed between the leg portions, and a tip end portion protruding forward from the base end portion and extending to the outside of the case. The case has button guide means for guiding the lifting and lowering of the release button, and lock claw guide means for guiding advancement and retraction of the lock claw,
The button guide means includes at least the first of a pair of left and right first through holes penetrating the upper wall of the case and a pair of left and right second through holes penetrating the lower wall of the case. The release button is guided through at least the first through-hole of the first through-hole and the second through-hole, and each leg portion of the release button is guided through at least the first through-hole. ,
The lock claw guide means includes a hook-shaped guide portion provided on the lower wall of the case, and a hook-shaped guided portion provided at the base end portion of the lock claw, and the hook-shaped guide portion. By engaging, the forward and backward movement of the lock claw is guided while restricting the swing of the lock claw in the vertical and horizontal directions.

  In a preferred aspect, the hook-shaped guide portion protrudes upward from the lower wall of the case and has a flange on the upper side, and the protruding direction of the flange is the inner side in the left-right direction of the case. A pair of left and right cross-section L-shaped guide rails arranged so as to face, and the hook-shaped guided portion projects downward from the base end portion of the lock claw and has a flange on the lower side By arranging the flange of the T-shaped guided rail between the two L-shaped guide rails and below the flange of each of the L-shaped cross-sectional guide rails, The forward and backward movement of the lock claw is guided while restricting the swing of the T-shaped guided rail in the vertical and horizontal directions.

  According to such a configuration, a hook-shaped guided portion (a pair of left and right cross-section L-shaped guide rails) provided at the base end portion of the lock claw and a hook-shaped guide portion (cross section T) provided on the lower wall of the case. Engagement with the shaped guide rail) guides the advancement and retraction of the lock claw while restricting the swinging of the lock claw in the vertical and horizontal directions. That is, the lock claw is restricted from swinging in the vertical and horizontal directions only at the bottom of the base end.

  As a result, the gap between the upper surface of the base end portion of the lock claw and the lower surface of the upper wall of the case, which is necessary in the prior art, is reduced as much as possible to regulate the vertical swing of the lock claw. It becomes unnecessary to manage the gap.

  Therefore, there is no need to make this gap excessively small, and even if the upper surface of the base end is deformed upward by press-fitting the connecting pin into the base end, it is possible to ensure this gap reliably. Become. As a result, a contact surface that resists the advancement and retraction of the lock claw is not formed between the upper surface of the base end portion and the lower surface of the upper wall of the case, and the lock claw advances and retreats smoothly. If the resistance of the release button is small, the operation resistance of the release button can be reduced in proportion to this.

  In addition, since the lock claw is less likely to sway from side to side, the base end of the lock claw and the leg of the release button do not come into contact with each other, and the leg rises and falls between the base end and the leg. No contact surface is formed. Thereby, if the lock claw advances and retreats smoothly and the resistance of the lock claw advance and retreat is small, the operation resistance of the release button can be reduced in proportion to this.

  In a preferred aspect, the button guide means includes the first through hole and the second through hole, and each leg portion of the release button includes the first through hole and the second through hole. The release button is swayed in the front-rear and left-right directions by the gaps formed between the side surfaces of the leg portions and the inner surfaces of the first through holes and the second through holes. The lifting and lowering of the release button is guided while restricting the movement.

  According to such a structure, when each leg part goes up and down, the 2nd penetration which penetrated the upper part of the leg part to the lower wall of the case by the 1st penetration hole penetrated to the upper wall of the case. The lower part of the leg is held by the hole. That is, one leg is held at two points above and below the leg.

  The horizontal deflection of the upper surface of the operation portion of the release button can be controlled by the distance between the upper end of the first through hole and the lower end of the second through hole. For example, when this distance is 15 mm, 0.13 mm is set as a gap between each leg portion and each through hole in order to suppress the lateral deflection of the upper surface of the operation portion of the release button to 0.2 mm or less. What is necessary is just to secure.

  Even if the gap between each leg and each through-hole is secured larger than the conventional locking device by holding one leg at two points above and below the leg, it is released. When the end portion of the button operation portion is pushed, the inclination of the leg portion does not increase. Thereby, it becomes difficult to form the contact surface which becomes resistance of raising / lowering of a leg part between the side surface of each leg part, and the inner surface of each through-hole, and it becomes possible to push-operate smoothly. Therefore, even if any part of the operation part of the release button is pushed, it can be pushed smoothly, which contributes to improvement of the operator's feeling of operation.

  Furthermore, since the gap between each leg and each through-hole can be ensured larger than the conventional locking device, even when used in the interior of a car with a severe temperature environment, such as thermal expansion The release button can be pushed smoothly without being influenced by the influence, which contributes to improvement of the operator's feeling of operation.

  In a preferred aspect, the case includes a protrusion protruding upward from the upper wall of the case, and the urging member is externally fitted to the protrusion.

  According to such a configuration, since the protrusion is formed on the upper wall of the case, the rigidity of the upper wall of the case is improved as compared with the case where there is no protrusion. Therefore, even when the upper wall of the case is pushed downward by the urging force of the urging member, the upper wall of the case is not easily deformed.

  As a result, a gap is reliably ensured between the upper surface of the base end portion of the lock claw and the lower surface of the upper wall of the case, and a contact surface that resists the advancement and retraction of the lock claw is not formed. Therefore, if the lock claw advances and retracts smoothly and the resistance of the lock claw advances and retracts is small, the operation resistance of the release button can be reduced in proportion to this.

  The locking device according to the present invention can smoothly perform a pressing operation regardless of which part of the operating portion of the release button is pressed, and the operational feeling of the operator is improved. If this locking device is used, for example, as a locking device for a lid of a cup holder, a glove box, or a glove compartment in an automobile cabin, an operator such as a driver can perform this operation even during driving or at night. It is possible to reliably push and operate the operation part of the release button without gazing at the operation part.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the locking device of the present invention will be specifically described below with reference to the drawings.

  The locking device of this embodiment is shown in FIG. 1A is a perspective view of the locking device, FIG. 1B is an exploded perspective view of the locking device, and FIG. 1C is a sectional view of the locking device as viewed from the front.

  The locking device 1 includes a case 2, a release button 3, a lock claw 4, a connecting pin 5 that connects them, and a spring 7 that biases the release button 3 upward.

  The lock claw 4 can move back and forth in the front-rear direction with respect to the case 2, and can be engaged with the mating member at the forward reference position advanced, and the release button 3 can be moved up and down with respect to the case 2 and lifted up The lock claw 4 is released from the reference position by retreating the lock claw 4 from the forward reference position, so that the lock claw 4 is unlocked.

  The case 2 has a plate-like frame made up of a pair of left and right side walls 21, an upper wall 22 and a lower wall 23. The case 2 penetrates the side walls 21 in the left-right direction and has an inner dimension of the hole. An elongated horizontal slide hole 2c that is horizontally long in the front-rear direction is formed. The connecting pin 5 is slidably held in the front-rear direction by the horizontal slide hole 2c.

  The release button 3 includes an operation portion 3a disposed above the upper wall 22 of the case 2 and a pair of left and right plate-like members that project perpendicularly downward from the operation portion 3a and extend into the case. It consists of the leg part 3b. In addition, an oblique slide hole 3c having a long hole shape is formed above each leg portion 3b and extends in the left-right direction, and the inner dimension of the hole is long in an oblique direction from the front and below to the rear and upward. Yes. The connecting pin 5 is held by the oblique slide hole 3c so as to be slidable in an upward gradient from the front to the rear.

  The lock claw 4 is housed in the case 2 and has a base end portion 4a disposed between the leg portions 3b, and a tip end portion 4b that protrudes forward from the base end portion 4a and extends to the outside of the case 2. It consists of. In addition, a through hole 4c having an inner diameter slightly smaller than the outer diameter of the connecting pin 5 is formed in the base end portion 4a.

  The connecting pin 5 has a C-shaped cross section (not shown) obtained by processing a metal thin plate into a circular tube shape. Since the circumference of the connecting pin 5 is not closed in the longitudinal direction, it is possible to elastically reduce the outer diameter of the connecting pin 5, whereby the connecting pin 5 is slightly smaller in inner diameter than the outer diameter of the connecting pin 5. It is possible to press fit into the through hole 4c of the lock claw 4.

  The connecting pin 5 passes through the horizontal slide hole 2c of the case 2, the oblique slide hole 3c of the release button 3, and the lock claw 4 so that the lock claw 4 moves backward or forward as the release button 3 descends or rises. It is connected through the hole 4c.

  The spring 7, which is an urging member, is externally fitted to a protruding portion 2 d that protrudes upward from the upper wall 22 of the case 2, and between the upper wall 22 of the case 2 and the operation portion 3 a of the release button 3. The release button 3 is urged to the ascending reference position by this urging force. In the state where the release button 3 is urged to the rising reference position, the lock claw 4 is disposed at the forward reference position.

  The case 2 has button guide means for guiding the lifting / lowering of the release button 3 and lock claw guide means for guiding the advancement / retraction of the lock claw 4.

  The button guide means includes a pair of left and right first through holes 2 a penetrating the upper wall 22 of the case 2 and a pair of left and right second through holes 2 b penetrating the lower wall 23 of the case 2. Each leg 3b of the release button 3 is inserted into each first through-hole 2a and each second through-hole 2b, whereby the side surface of each leg 3b, each first through-hole 2a and each second through-hole 2b. The clearance of the release button 3 is guided by the gaps formed between the inner surfaces of the release buttons 3 while restricting the swinging of the release button 3 in the front-rear and left-right directions.

  The lock claw guide means protrudes upward from the lower wall 23 of the case 2, has a flange on the upper side, and is arranged so that the protruding direction of the flange faces the inner side in the left-right direction of the case It consists of a pair of cross-section L-shaped guide rails 6 (saddle-shaped guide portions).

  The base end portion 4a of the lock claw 4 is formed with a T-shaped guided rail 4d (a saddle-shaped guided portion) having a flange projecting downward from the base end portion 4a. By arranging the flange of the T-shaped guided rail 4d between the cross-section L-shaped guide rails 6 and below the flange of each L-shaped guide rail 6, the top, bottom, left and right of the T-shaped guided rail 4d The forward and backward movement of the lock claw 4 is guided while restricting the swing of the direction.

  The horizontal slide holes 2c, the oblique slide holes 3c, and the through holes 4c are arranged in this order from the side wall 21 of the case 2 inward, and the horizontal slide holes 2c, the oblique slide holes 3c, and the through holes 4c are connected to each other. By penetrating with the pin 5, the case 2, the release button 3, and the lock claw 4 are integrated and assembled as the lock device 1.

  By pressing the operating portion 3a of the release button 3 from above against the biasing force of the spring 7 biased in a compressed state between the upper wall 22 of the case 2 and the operating portion 3a of the release button 3 The leg 3b of the release button 3 is lowered.

  As a result, the connecting pin 5 press-fitted into the base end portion 4 a of the lock claw 4 is guided to the oblique slide hole 3 c of the leg portion 3 b and the horizontal slide hole 2 c of the case 2, and the lock claw 4 moves backward. If the pushing operation of the release button 3 is released, the release button 3 is urged by the spring 7 and automatically returns to the rising reference position.

  FIG. 2 is a perspective view illustrating a cup holder in which the locking device of this embodiment is used.

  The cup holder 8 is mounted on a center console in a vehicle interior of an automobile. The cup holder 8 is a fixed member that is a container 9 that contains a beverage container (not shown), and a movable member that has an opening at the top of the container 9. The lid 10 can be opened and closed. In addition, in FIG. 2, the condition in the open position which the cover 10 of the cup holder 8 opened is shown.

  The locking device 1 is disposed above the accommodating portion 9 and the operation portion 3a of the release button 3 is exposed upward. By fitting the locking claw 4 of the locking device 1 into the locked portion 11 of the lid 10, the lid 10 is locked in the closed position. Further, when the operation portion 3a of the release button 3 is pushed, the lock claw 4 is retracted, and the locking of the lid 10 is released.

  According to the configuration of this embodiment, a pair of left and right cross-section L-shaped guides provided on the bottom wall 23 of the case 2 and the cross-section T-shaped guided rail 4 d provided on the base end portion 4 a of the lock claw 4. Engaging with the rail 6 guides the advancement and retraction of the lock claw 4 while restricting the swing of the lock claw 4 in the vertical and horizontal directions. That is, the lock claw 4 is restricted from swinging in the vertical and horizontal directions only at the lower portion of the base end portion 4a.

Thus, it has been necessary in the prior art, the vertical direction of the lock arm 4 by a to minimize the gap s ₁ during the lower surface of the upper wall 22. in the upper surface and the case 2 of the base end portion 4a of the locking pawl 4 It is not required to manage the gap s ₁ that regulates the swing.

Therefore, it is not necessary to excessively reduce the gap s _1, as the upper surface of the base end 4a is deformed upward by press-fitting the connecting pins 5 into the through hole 4c of the base end portion 4a, the gap s ₁ Can be ensured. Thereby, the contact surface which becomes resistance of advancement / retraction of the lock claw 4 is not formed between the upper surface of the base end part 4a and the lower surface of the upper wall 22 of the case, and the lock claw 4 smoothly advances / retreats, If the resistance of the lock claw 4 to advance and retract is small, the operation resistance of the release button 3 can be reduced in proportion to this.

  Further, since the lock claw 4 is less likely to sway from side to side, the base end 4a of the lock claw 4 and the leg 3b of the release button 3 do not come into contact with each other, and the leg n A contact surface that serves as resistance for raising and lowering the portion 3b is not formed.

  Thereby, if the lock claw 4 advances and retracts smoothly and the resistance of the lock claw 4 to advance and retract is small, the operation resistance of the release button 3 can be reduced in proportion to this.

Further, according to the configuration of the present embodiment, one leg portion 3b is held at the upper and lower two points (first through hole 2a and second through hole 2b) of the leg portion 3b by the release button guide means. ing. Therefore, even when the gap s ₂ between the legs 3b and the through holes 2a and 2b secured greater than the conventional lock device 100, pushing the end portion of the operation portion 3a of the release button 3 When operating, the inclination of the leg 3b does not increase.

Thus, between the side surface and the through-holes 2a and 2b of each leg 3b, hardly contact surfaces as a resistance of the lifting of the leg portion 3b is formed, also, the thermal expansion or the like due to the large gap s ₂ The release button 3 can be smoothly pushed and operated without being influenced by the influence of the above.

  Furthermore, according to the configuration of the present embodiment, the protrusion 2d on which the spring 7 is fitted is formed on the upper wall 22 of the case 2, so that the case 2 can be compared with the case 2 without the protrusion 2d. The rigidity of the upper wall 22 is improved. Therefore, even if the upper wall 22 of the case 2 is pushed downward by the urging force of the spring 7, the upper wall 22 of the case 2 is not easily deformed.

As a result, the gap s ₁ is reliably ensured between the upper surface of the base end portion 4 a of the lock claw 4 and the lower surface of the upper wall 22 of the case 2, and a contact surface that serves as resistance to advance and retreat of the lock claw 4 is formed. There is nothing. Therefore, if the lock claw 4 advances and retracts smoothly and the resistance of the lock claw 4 to advance and retract is small, the operation resistance of the release button 3 can be reduced in proportion to this.

  As is clear from the above detailed description, according to the locking device of the present embodiment, it is possible to perform a smooth pushing operation regardless of which part of the operation portion of the release button is pushed. Contributes to improved operational feeling.

  In addition, if the locking device of the present embodiment is used as a locking device for a lid of a cup holder, glove box, accessory case or the like in a car cabin, for example, a driver or the like even during driving of a car or at night The operator can reliably press and operate the operation part of the release button without gazing at the operation part.

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

  For example, in FIG. 1 for explaining the present embodiment, the case where the operation unit 3a of the release button 3 is arranged above is shown. However, if the structure is the same, the locking device 1 is rotated in any direction and used. May be. That is, the operation part 3a may be arrange | positioned ahead and may be arrange | positioned below.

  Further, in FIG. 1 for explaining the present embodiment, the inner surfaces of the upper and lower openings of the first through hole 2a and the second through hole 2b are not chamfered. Even when the side surface of the portion 3b and the through holes 2a and 2b are in contact with each other, it is preferable because the lifting and lowering resistance of the leg portion 3b can be kept small.

  1 illustrating the present embodiment, a structure in which the front of the case 2 is open is shown. This structure inserts the base end portion 4a of the lock claw 4 into the case 2 from the front of the case 2. Structure. Unlike this structure, the front of the case 2 can be closed. In this case, the front of the case 2 is closed by a wall member in which an opening having a size that allows the front end 4b of the lock claw 4 to advance and retreat, and the lock claw 4 is inserted into the case 2 from the rear opening of the case 2. It becomes a structure to insert into.

  In addition, in FIG. 1 for explaining the present embodiment, a cross-section T-shaped guided guide formed at the base end portion 4 a of the lock claw 4 by a pair of left and right cross-section L-shaped guide rails 6 formed on the lower wall 23 of the case 2. Although the structure of guiding the advance and retreat of the rail 4d is provided, the base end portion 4a of the lock claw 4 is formed by a T-shaped guide rail formed on the lower wall 23 of the case 2 by reversing the structure of the guide rail and the guided rail. It is good also as a structure which guides the advancing and retreating of a pair of left and right cross-section L-shaped guided rails.

  Furthermore, the combination of the guide rail and the guided rail is not limited to the combination of the pair of left and right L shapes and the T shape shown in the present embodiment, for example, a combination of a pair of left and right L shapes and a pair of left and right L shapes. Also good. In other words, any structure may be used as long as the swing in the vertical and horizontal directions can be restricted only by the lower portion of the base end portion 4a of the lock claw 4.

  Moreover, in this embodiment, although the form which press-fits the connection pin 5 in the through-hole 4c of the base end part 4a was shown, you may penetrate the connection pin 5 in the through-hole 4c, and you may fix it with an adhesive agent etc.

It is the perspective view and sectional drawing explaining the locking device of this embodiment, (a) is a perspective view of a locking device, (b) is an exploded perspective view of a locking device, (c) looked at a locking device from the front. A cross-sectional view is shown. The perspective view explaining the cup holder in which the locking device of this embodiment is used is shown. BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view and sectional drawing explaining a locking device of a prior art, (a) is a perspective view of a locking device, (b) is an exploded perspective view of a locking device, (c) is the cross section which looked at the locking device from the front. FIG. 4D is a half cross-sectional view illustrating a situation where the end of the operation unit of the locking device is pushed.

Explanation of symbols

s ₁ , s ₂ ... gap 1 ... lock device 2 ... case 2a ... first through hole (release button guide means)
2b ... 2nd through-hole (release button guide means)
2c ... Horizontal slide hole 2d ... Projection part 3 ... Release button 3a ... Operation part 3b ... Leg part 3c ... Slant slide hole 4 ... Lock claw 4a ... Base end part 4b ... Tip part 4c ... Through hole 4d ... Cross section T-shaped guided Rail (gutter-shaped guided part)
5 ... Connecting pin 6 ... L-shaped guide rail (lock claw guide means, bowl-shaped guided part)
7 ... Spring (biasing member) 8 ... Cup holder 9 ... Housing (fixing member) 10 ... Lid (movable member)
11 ... Locked portion 21 ... Side wall 22 ... Upper wall 23 ... Lower wall

Claims (4)

A case having a plate-like frame composed of a pair of left and right side walls, an upper wall and a lower wall;
A lock claw that can be advanced and retracted in the front-rear direction with respect to the case, and that is engaged with the mating member at the advanced reference position that has been advanced,
A release button that can move up and down with respect to the case and releases the lock claw by retreating the lock claw from the forward reference position by descending from the raised ascending reference position;
A connecting pin that penetrates and connects the release button, the lock claw, and the case so that the lock claw moves backward or forward as the release button descends or rises;
A biasing member that biases the released release button upward to return it to the raised reference position,
The release button is composed of an operation part disposed above the upper wall of the case, and a pair of left and right legs projecting downward from the operation part and extending into the case,
The lock claw is housed in the case and disposed between the legs, and a distal end projecting forward from the base end and extending out of the case. Consists of
The case has button guide means for guiding the lifting and lowering of the release button, and lock claw guide means for guiding advancement and retraction of the lock claw,
The button guide means includes at least the first of a pair of left and right first through holes penetrating the upper wall of the case and a pair of left and right second through holes penetrating the lower wall of the case. Consisting of one through hole,
Each of the leg portions of the release button is guided through at least the first through hole of the first through hole and the second through hole to guide the lifting and lowering of the release button,
The lock claw guide means comprises a hook-shaped guide portion provided on the lower wall of the case,
Engagement of the hook-shaped guided portion provided at the base end portion of the lock claw and the hook-shaped guide portion allows the lock claw to advance and retreat while restricting swinging of the lock claw in the vertical and horizontal directions. A locking device characterized by guiding. The hook-shaped guide portion protrudes upward from the lower wall of the case, has a flange on the upper side, and is arranged so that the protruding direction of the flange faces the inner side in the left-right direction of the case A pair of left and right cross-section L-shaped guide rails,
The hook-shaped guided portion includes a T-shaped guided rail having a cross-section that protrudes downward from the base end portion of the lock claw and has a flange below.
By arranging the flanges of the T-shaped guided rails between the L-shaped guide rails and below the flanges of the L-shaped guide rails, the top, bottom, left and right of the T-shaped guided rails The lock device according to claim 1, wherein the lock claw is guided to advance and retreat while restricting swinging in a direction. The button guide means comprises the first through hole and the second through hole,
The leg portions of the release button are inserted into the first through holes and the second through holes, so that the side surfaces of the leg portions, the first through holes, and the second through holes are inserted. 3. The lock according to claim 1, wherein the release button is guided to rise and fall while regulating the swinging of the release button in the front-rear and left-right directions by a gap formed between the inner surface of each of the locks. apparatus. The case includes a protrusion protruding upward from the upper wall of the case,
The locking device according to claim 1, wherein the urging member is externally fitted to the protrusion.

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