JP4553786B2 - Lid opening / closing device - Google Patents

Description

  The present invention relates to a lid opening / closing device for performing an opening / closing lock of a glove box of an automobile, for example.

  For example, a glove box is attached to an instrument panel of an automobile on the passenger seat side. The glove box is openably and closably attached to a recess provided in the instrument panel, and a lock member that engages with the inner periphery of the recess when closed, and an operation element that retracts the lock member to release the engagement. have. Various mechanisms are known as the mechanism of the lock member and the operation element.

In Patent Document 1 below, a pair of left and right rods are held so as to be able to protrude and retract from both side walls of the lid, and these rods are elastically biased in a direction protruding from both side walls of the lid, and the rod is moved by swinging the operation handle. Is a side lock device in which a cylindrical portion is formed on the operation handle side, and a cam mechanism for moving the rod in and out by swinging the operation handle is provided in the cylindrical portion. Are disclosed.
JP 2004-250938 A

  However, in the lid opening and closing device as described above, when the lid is closed, the slope of the tip of the rod, which is a locking member, collides with the inner periphery of the recess and makes a noise, and the rod is pushed into the inner periphery of the recess and enters the lid. Since it makes a noise again when it is inserted into the lock hole formed in the inner periphery of the recess after being retracted, there is a problem that the impact sound when closing the lid is annoying.

  Accordingly, an object of the present invention is to provide a lid opening / closing device that can soften an impact sound when closing the lid and can quietly perform the opening / closing operation.

In order to achieve the above object, a first aspect of the present invention includes a recess provided on a surface to be attached, a lid attached to the recess so as to be openable and closable, and an engagement provided on an inner periphery of the recess. A locking hole that is inserted into and removed from the engagement hole through the engagement hole, an elastic means that urges the locking member in the protruding direction, and the lock member is pulled into the lid side to lock In a lid opening / closing device comprising an operating element to be released, the locking member is engaged with the locking member when the locking member is pulled to the lid side by the operating element and the lid is open. The locking member is retracted, and when the lid is closed, locking member holding means for releasing the engagement away from the locking member is provided, and the operating element and the locking member are provided. The holding means is The lock member holding means is slid with respect to the lock main body portion and can be engaged with the lock member, and the engagement is released. In the state where the lid is closed, the lock member is configured to move to a position where the engagement is released by contacting the peripheral edge of the recess. An engaging portion is formed at the tip of the branching portion, and the lock member holding means is elastically biased to a position engageable with the engaging portion, and the engaging portion and the lock member holding At least one of the means is provided with an inclined surface that guides the engagement state when they are in contact with each other .

According to the above invention, when the lock member is pulled to the lid side by the operating element and the lid is opened, the lock member is engaged with the lock member holding means and maintained in the state of being pulled to the lid side. Further, when the lid is closed, the lock member holding means is separated from the lock member to be disengaged, and the lock member is fitted into the engagement hole on the inner periphery of the recess. For this reason, when the lid is closed, the lock member is pulled to the lid side, and after the lid is inserted into the inner periphery of the recess, the lock member is pushed out and fitted into the engagement hole. The impact noise is significantly reduced and the lid can be closed and locked gently.
Further, by attaching the operation element and the lock member holding means to the lock main body, it is possible to make these devices compact and prevent the accommodation space inside the lid from being narrowed.
Further, when the lock member is pulled to the lid side by the operation element and the lid is opened, the lock member holding means abuts against the engagement portion of the lock member by the elastic biasing force, and is guided by the inclined surface to engage with each other. Therefore, the lock member can be securely held in the retracted state.

  According to a second aspect of the present invention, in the first aspect of the invention, the lock member is configured by a pair of rods that are disposed close to the upper edge of the lid and protrude from the left and right side walls of the lid, and the tip of each rod Is provided with a lock portion that is inserted into the engagement hole, and an engagement portion that is engaged with the lock member holding means in a state of being pulled to the lid side is provided on the proximal end side of each rod. A lid opening / closing device is provided.

  According to the above invention, when the pair of left and right rods are engaged with the lock member holding means, the urging forces of the elastic means applied to the left and right rods are balanced, and the rods can be stably held in the retracted state. Further, since the urging force of the elastic means is balanced, no excessive stress is applied to the lock member holding means, and the movement and operation are not hindered.

According to a third aspect of the present invention, in the first or second aspect of the invention, the lock member holding means is slidably supported by the lock main body at two locations with a predetermined distance, A lid opening and closing device is provided in which the engaging portion is disposed between the two support portions.

  According to the above invention, since the movement of the lock member holding means can be performed stably, engagement / release with the lock member can be performed smoothly and reliably.

According to a fourth aspect of the present invention, in any one of the first to third aspects, a first guide for preventing the branching portion from moving in the same direction is disposed in an outer direction of the lid of the branching portion. A lid opening / closing device is provided.

  According to the above invention, when the lid is closed while the lock member is retracted by the lock member holding means and the lid is closed, the lock member holding means is pushed by the peripheral edge of the recess and moves toward the outside of the lid. At this time, the lock member is restricted by the first guide to prevent the lock member from swinging outward together with the lock member holding means. be able to.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, a second guide for preventing the branch portion from moving in the same direction is disposed in the inner side of the lid of the branch portion. A lid opening / closing device is provided.

  According to the invention, when the lock member is pulled to the lid side by the operating element and the lid is opened, the lock member holding means comes into contact with the engagement portion of the branch portion and tries to engage. Is restricted by the second guide and is prevented from swinging toward the inside of the lid, so that the engagement can be performed reliably and smoothly.

  According to the present invention, when the lid is closed, the lock member is pulled to the lid side, and after the lid is inserted into the inner periphery of the recess, the lock member is pushed out and fitted into the engagement hole. The impact noise when doing so is greatly reduced, and the lid can be closed and locked gently.

Hereinafter, an embodiment of a lid opening and closing device according to the present invention will be described with reference to the drawings.
A lid to which the present invention is applied is, for example, attached to a recess provided in an instrument panel of an automobile, a side wall in a room, or the like so as to be freely opened and closed.

  In this case, a recessed portion that accommodates an article is formed on a mounting surface such as an instrument panel or a side wall, and the lid may be a lid attached to the recessed portion so as to be opened and closed. For example, like a glove box, the lid itself may have a box shape and have a storage recess inside.

  As shown in FIGS. 1 and 2, the lid 70 includes an outer plate 71, an inner plate 72, and both side walls 73.

  The lid opening / closing device 10 of the present invention is disposed in the internal space between the outer plate 71 and the inner plate 72 at the upper edge of the lid 70. That is, the lid opening / closing device 10 has a lock main body portion 11 fixed to the back surface side of the inner plate 72 by screws or the like (not shown).

  The lock main body 11 has both side walls 12 that protrude toward the outer plate 71 of the lid 70. A square hole 13 is formed in the side wall 12. A plurality of attachment holes 14 for screwing screws (not shown) inserted from the inner plate 72 side of the lid 70 are provided on the back side of the lock main body 11. A support plate 15 extends toward the outer plate 71 at the center of the upper side of the lock body 11, and a guide arm that extends vertically in the front end portion of the support plate 15 and extends in the left-right direction. 16 is integrally formed.

  A first guide 17 protruding in the direction of the inner plate 72 is provided at both ends of the guide arm 16. In addition, a frame 18 projects from the center of the guide arm 16 toward the inner plate 72. At the center of the upper and lower sides of the frame body 18, a pair of retaining pieces 19 each having an elastic piece shape by slits on both sides and having engagement claws formed on the inner side of the tip portion are provided. Further, a guide groove 20 for guiding a lock member holding means 30 to be described later is formed at the center of the upper side of the lock main body 11. The guide groove 20 has a substantially T-shaped groove shape when viewed from the back side.

  The lock member holding means 30 is slidably mounted on the back side of the lock main body 11. That is, the lock member holding means 30 has an insertion portion 33 that is inserted into the frame 18 of the guide arm 16. An engagement groove 34 is formed at the center of the upper and lower surfaces of the elongated main body 31 that extends in the left-right direction, and when the insertion portion 33 is inserted into the frame 18, The claw portion engages with the engagement groove 34, and the lock member holding means 30 is supported so as to be slidable within a predetermined range with respect to the lock main body portion 11 and to be prevented from coming off. .

  Referring also to FIG. 8, a columnar protrusion 35 that protrudes further on the back side is formed at the center on the back side of the main body 31, and a disk-shaped head 36 is integrally formed at the tip of the columnar protrusion 35. Is formed. Furthermore, a guide leg 37 extending downward is provided below the columnar protrusion 35. The guide leg 37 has a T-shape that fits into the guide groove 20 when viewed from the back side. By inserting the guide leg 37 into the guide groove 20, the lock member holding means 30 is attached to the frame. Guided at two locations, a sliding guide between the body 18 and the insertion portion 33 and a sliding guide between the guide groove 20 and the guide leg 37.

  A holding recess 32 is formed on the back side of the left and right ends of the main body 31. The peripheral edge of the opening of the holding recess 32 is tapered such that the thickness of the main body 31 decreases toward the tip side.

  On the upper surface of the lock main body 11, a pair of second guides 21 project upward from the left and right ends. A branch portion 67 attached to a pair of rods 60 to be described later is disposed between the first guide 17 of the guide arm 16 and the second guide 21 on the upper surface of the lock main body 11. .

  Further, a spring seat 22 for mounting the torsion coil spring 23 is provided at one place on the upper surface of the lock main body 11. One end 23a of the torsion coil spring 23 is engaged with a spring receiver 51 of an operating element 40 which will be described later, and the other end 23b is engaged with the guide leg 37 of the lock member holding means 30, so that the lock member holding means 30 is always engaged. Elastically biased toward the back side.

  An operation element 40 is rotatably attached to the lock body 11. The operating element 40 includes a substantially plate-like handle 41 whose lower edge portion forms a finger hooking portion, and a pair of cylindrical portions 42 that are integrally formed on both sides of the back surface side of the handle 41.

  Coil springs 43 constituting the elastic means of the lock member in the present invention are inserted into the receiving holes 42a of the respective cylinder portions 42. Further, cam members 44 are respectively inserted into the receiving holes 42a. The cam member 44 has a shape in which the cylindrical portion 45 and the rectangular tube portion 47 are connected, and a cam 46 is formed on the outer periphery of the cylindrical portion 45. The rectangular tube portion 47 is provided with an insertion hole 48, and an engagement hole 49 is formed on a pair of opposing surfaces of the rectangular tube portion 47.

  A pair of pins 50 project inwardly from the cylindrical portion 42 of the handle 41, and the pins 50 are inserted into the grooves of the cam 46 of the cylindrical portion 45 to hold the cam member 44 in place. To do. A spring portion 64 formed at the base end portion of the rod 60 is inserted into the insertion hole 48 of the cam member 44, and a protrusion 65 provided on the spring portion 64 is engaged with the insertion hole 48, thereby The rod 60 is fixed to the cam member 44.

  The rod 60 is composed of a pair of left and right members fixed to the left and right cam members 44, respectively, and their tip portions form a lock portion 61 so as to protrude from the opening 74 of the side wall 73 of the lid 70 shown in FIG. It has become. A taper portion 62 is formed on the back side of the lock portion 61. Holes 66 are respectively formed in the upper surface of the base portion of the rod 60.

  The leg portion 68 of the branch portion 67 having an L shape as a whole is fitted into the hole 66 so that the branch portion 67 is attached to the rod 60. A claw-like engaging portion 69 that protrudes toward the outer plate 71 is formed at the distal end portion of the branch portion 67 that is formed in an L shape from each rod 60. The branch portion 67 may be formed integrally with the rod 60.

FIG. 3 shows a drive mechanism of the operation element 40.
In the figure, 41 is a handle, and 42 is a cylinder part. As described above, the cam member 44 is inserted into the pair of left and right cylinder portions 42 via the coil spring 43. A pin 50 projecting from the inner wall of the cylindrical portion 42 is in contact with the cam 46 of the cam member 44. In addition, the front side of the handle 41 is a front surface, and a part of the left and right sides are cut away to show the inside of the cylindrical portion 42 as a cross section.

  In this state, when a finger is hooked on the lower side portion of the handle 41 and pulled toward the front side, the handle 41 and the cylindrical portion 42 are rotated in the direction indicated by the arrow A in the figure. On the other hand, the cam member 44 has a square tube portion 47 at the end thereof inserted into the square hole 13 of the lock main body portion 11 shown in FIG. 1, and cannot be rotated by being held in the square hole 13. . As a result, the pin 50 of the cylindrical portion 42 that abuts the cam 46 of the cam member 44 rotates in the direction of arrow A in the drawing and presses the cam 46, so that the cam member 44 is indicated by arrow B in the drawing, The coil spring 43 is compressed and moved inward. As a result, the pair of rods 60 fixed to the respective cam members 44 slide so as to be drawn into the openings 74 provided in the side wall 73 of the lid 70 shown in FIG.

  When the hand is released from the handle 41, the cam member 44 is pushed out again by the biasing force of the coil spring 43, so that the rod 60 is biased in the direction protruding from the opening 74.

  FIG. 4 shows a state in which the lid 70 is attached to the recess 81 formed in the instrument panel 80 of the automobile so that the lid 70 can be opened and closed, and the lid 70 is closed. An engagement hole 83 into which the lock portion 61 of the rod 60 is inserted is provided in the inner wall of the recess 81. In the state in which the lid 70 is closed, the lock portion 61 at the tip of the pair of left and right rods 60 is fitted into the engagement hole 83, and the lid 70 is maintained in the closed state.

  At this time, the head portion 36 of the lock member holding means 30 comes into contact with a projection 84 described later that protrudes from the periphery of the opening of the recess 81, and the lock member holding means 30 moves in a direction close to the handle 41. Yes. The engaging portion 69 of the branching portion 67 connected to the pair of rods 60 is located away from the holding recess 32 of the lock member holding means 30.

Next, the operation of the lid opening / closing device 10 will be described.
5A and 5B show a state in which the lid 70 is closed and the lock portion 61 of the rod 60 is inserted into the engagement hole 83 of the recess 81 and locked, as in FIG. Yes. As shown in FIG. 5B, a projection 84 protrudes from the upper wall of the opening of the recess 81 of the instrument panel 80, and when the lid 70 is closed, the recess 81 becomes the inner plate of the lid 70. Through the opening (not shown) formed in 72, the lock member holding means 30 is pressed by the head 36 of the lock member holding means 30, and the lock member holding means 30 is moved to the handle 41 side.

  6A and 6B show a state in which a finger is hooked on the lower side of the handle 41 and the handle 41 is pulled forward. As described with reference to FIG. 3, when the handle 41 is pulled forward, the pair of rods 60 are pulled into the lid 70, and the engaging portions 69 of the branch portions 67 attached to the rods 60 move inward. . As a result, the engaging portion 69 of the branch portion 67 is close to the holding recess 32 of the main body portion 31 of the lock member holding means 30.

  In this state, when the lid 70 is rotated and opened while the handle 41 is pulled forward, the lock member holding means 30 biased by the torsion coil spring 23 moves toward the inner plate 72 of the lid 70. As a result, the holding recess 32 of the lock member holding means 30 engages with the engaging portion 69 of the branch portion 67, and the pair of rods 60 are held in a state of being pulled into the lid 70 by the lock member holding means 30.

  For this reason, as shown in FIGS. 7A and 7B, even if the hand is released from the handle 41, the engaging portion 69 of the branching portion 67 of the rod 60 is engaged with the holding recess 32 of the lock member holding means 30. Therefore, the rod 60 is maintained in a state of being pulled into the both side walls 73 of the lid 70.

  Further, since the one end 23a of the torsion coil spring 23 is in contact with the spring receiver 51 of the handle 41 of the operation element 40, the handle 41 is elastically biased in a state where it is rotated downward, and is shaken by vibrations or the like. It is prevented.

  Further, when the lid 70 is closed, the pair of rods 60 are in a state of being pulled into the lid 70, so that the lock portion 61 at the tip of the rod 60 does not contact the peripheral edge of the opening portion of the recess 81 of the instrument panel 80. The lid 70 is gently inserted into the inner periphery of the opening of the recess 81.

  Then, the projection 84 projecting from the upper side of the opening of the recess 81 presses the head 36 of the lock member holding means 30 and moves the lock member holding means 30 in the direction of the handle 41. As a result, the lock member holding means 30 moves in the direction of arrow C in FIG. 7A, and the engagement between the engaging portion 69 of the branch portion 67 and the holding recess 32 of the lock member holding means 30 is released. At this time, since the engaging portion 69 of the branching portion 67 is pressed against the holding recess 32 of the lock member holding means 30, it tries to move in the direction of arrow C together with the lock member holding means 30. However, in the case of this embodiment, since the first guide 17 of the guide arm 16 described above prevents the movement of the branching portion 67, the engagement between both is reliably and promptly achieved. Thus, when the engagement between the engaging portion 69 of the branching portion 67 and the holding recess 32 of the lock member holding means 30 is released, the rod 60 is opened by the biasing force of the coil spring 43 described above and the opening 74 of the side wall 73 of the lid 70. Projecting outward from.

  As a result, the lock portion 61 of the rod 60 is fitted into the engagement hole 83 formed in the inner wall of the recess 81, and the lid 70 is locked in the closed state. As described above, when the lid 70 is closed, the lock portion 61 of the rod 60 does not collide with the peripheral wall of the recess 81, and the engagement between the lock member holding means 30 and the rod 60 is performed with the lid 70 completely closed. Since the engagement is released and the rod 60 protrudes from the both side walls 73 of the lid 70 and fits into the engagement hole 83, almost no impact sound is generated in the locking operation of the lid 70, and the lid 70 can be closed gently. it can.

  In the embodiment described above, a side lock structure using a pair of left and right rods 60 is used as the lock member. However, in the present invention, for example, one lock member can be projected and retracted with respect to the upper side of the lid. It is also possible to apply a lock structure formed of the above member.

  INDUSTRIAL APPLICABILITY The present invention can be used as a lid opening / closing device that can soften an impact sound when closing a lid such as a glove box of an automobile, for example, so that the opening / closing operation can be performed quietly.

It is a disassembled perspective view which shows one Embodiment of the lid opening / closing apparatus by this invention. It is the partially cutaway perspective view which looked at the lid in the lid opening and closing device from the inside. It is explanatory drawing which shows the drive mechanism of the rod in the lid opening / closing apparatus. It is a top view of the lid closed state in the lid opening and closing device. The state which closed the lid in the lid opening / closing apparatus is shown, (a) is a top view of a lock main-body part, (b) is a side view of a lock main-body part. The state in the middle of opening the lid in the lid opening / closing apparatus is shown, (a) is a plan view of the lock main body, and (b) is a side view of the lock main body. It is the perspective view which looked at the attachment state of the operation element from the back side. The state which opened the lid in the lid opening / closing apparatus is shown, (a) is a top view of a lock main-body part, (b) is a side view of a lock main-body part. It is a perspective view which shows the attachment structure of the lock member holding means in the lid opening / closing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lid opening / closing apparatus 11 Lock body part 12 Side wall 13 Square hole 14 Mounting hole 15 Support plate 16 Guide arm 17 1st guide 18 Frame 19 Retaining piece 20 Guide groove 21 2nd guide 22 Spring seat 23 Torsion coil spring 23a One end 23b Other End 30 Locking member holding means 31 Body portion 32 Holding recess portion 33 Insertion portion 34 Engaging groove 35 Columnar protrusion 36 Head portion 37 Guide leg 40 Operating element 41 Handle 42 Tube portion 43 Coil spring 44 Cam member 45 Cylindrical portion 46 Cam 47 Square tube portion 48 Insertion hole 49 Engagement hole 50 Pin 51 Spring receiver 60 Rod 61 Lock part 62 Taper part 64 Spring part 65 Projection 66 Hole 67 Branch part 68 Leg part 69 Engagement part 70 Lid 71 Outer plate 72 Inner plate 73 Side wall 74 Opening 80 Instrument panel 81 Recess 83 Engagement hole 84 Protrusion

Claims (5)

A recess provided on the surface to be attached, a lid attached to the recess so as to be openable and closable, an engagement hole provided in an inner periphery of the recess, and protruding from the lid into the engagement hole In a lid opening and closing apparatus comprising: a lock member to be inserted and removed; an elastic means for urging the lock member in a projecting direction; and an operation element for releasing the lock by pulling the lock member to the lid side.
When the lock member is retracted to the lid side by the operation element and the lid is in an open state, the lock member is engaged and maintained in the retracted state. In a state where the lid is closed, a lock member holding means for releasing the engagement away from the lock member is provided ,
The operating element and the lock member holding means are attached to the lid via a lock main body, and the lock member holding means can slide with respect to the lock main body and engage with the lock member. It is possible to move to a position where the engagement is released, and in a state where the lid is closed, the lid is brought into contact with the peripheral edge of the recess and moved to a position where the engagement is released. And
The lock member has a branch portion, and an engagement portion is formed at a tip of the branch portion, and the lock member holding means is elastically biased to a position engageable with the engagement portion, A lid opening / closing device characterized in that an inclined surface is formed on at least one of the engaging portion and the locking member holding means to guide the engaging state when they are in contact with each other .   The lock member is disposed in the vicinity of the upper edge of the lid, and is composed of a pair of rods protruding and retracting from the left and right side walls of the lid, and a lock portion that is inserted into the engagement hole is provided at the tip of each rod. The lid opening / closing device according to claim 1, wherein an engagement portion that engages with the lock member holding means in a state of being pulled toward the lid is provided on a base end side of each rod. The lock member holding means is slidably supported by the lock main body at two locations with a predetermined distance, and a portion that engages with the engagement portion is disposed between the two support portions. The lid opening / closing device according to claim 1 or 2 . The lid opening / closing device according to any one of claims 1 to 3 , wherein a first guide for preventing the branch portion from moving in the same direction is disposed in an outer direction of the lid of the branch portion. The lid opening / closing device according to any one of claims 1 to 4 , wherein a second guide for preventing the branch portion from moving in the same direction is disposed in an inner direction of the lid of the branch portion.

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