JP6031523B2 - Opening and closing body locking device - Google Patents

Description

  The present invention relates to an opening / closing body locking device for locking an opening / closing body attached to an opening of a fixed body so as to be openable / closable in a closed state.

  For example, an opening / closing body such as a lid is detachably attached to an opening formed in a fixed body such as a glove box of an automobile. A locking device is provided for locking the opening to a closed state with a lid or the like and opening the lid or the like from the opening. Moreover, in order to maintain the lid etc. in a locked state with respect to the opening, a locking device employing a key cylinder is widely used.

  For example, Patent Document 1 below includes a box and a door that are detachably attached to a panel opening, a lock mechanism that locks the door and the door in a closed state, and a lock release device that releases the lock. The lock release device includes an operation knob and an operation knob operated in conjunction with an operation of the operation knob. The lock release device includes an engagement portion movably provided along the door and a bezel having an engagement hole for engaging the engagement portion. A grab box is described that includes an extruding pin that pushes the engaging portion engaged with the engaging hole outward and releases the lock by the locking mechanism.

  The lock release device has a box-shaped device main body, an operation knob having a pin protruding from the back surface is mounted so as to be able to be pushed in, and a key cylinder is rotatably disposed, and the device A stopper member that can slide up and down is housed below the main body.

  Then, when the key is inserted into the key cylinder and rotated, the protrusion on the back of the key cylinder slides the stopper member up and down, the stopper member is engaged with and disengaged from the pin of the operation knob, and the pushing of the operation knob is restricted, and the panel Unlocking the box and door with respect to the opening is restricted.

  In the following Patent Document 2, a case, a knob rotatably mounted on the case, a first sliding member and a second sliding member supported by the case so as to be slidable in directions opposite to each other in the horizontal direction. There is disclosed a side lock device having a sliding member, and a first stay and a second stay attached to each sliding member and capable of protruding and retracting from both left and right sides of the lid.

  The first sliding member is provided with a key lock recess having a wide upper portion and a narrow lower portion, and a key cylinder is mounted on the knob. A protrusion for driving into the recess of the first sliding member and driving the first sliding member is provided.

  When the protrusion of the key cylinder is located above the wide concave portion of the first sliding member, the knob can be rotated. When the knob is rotated with respect to the case in this state, the key cylinder is also Together with the rotation, the projection presses the inner surface of the recess to retract the first sliding member. On the other hand, when the projection of the key cylinder enters the lower part of the narrow recess of the first sliding member, the knob rotation is restricted and the sliding of the first sliding member is prevented. ing.

JP 2009-269572 A Japanese Patent Laid-Open No. 2004-211383

  In the case of the grab box of Patent Document 1, a stopper member is required in addition to the key cylinder, and there is a disadvantage that the number of parts is large.

  On the other hand, in the case of the side lock device of Patent Document 2, since the key cylinder is mounted on the knob, the engagement of the protrusion of the key cylinder with the inner surface of the concave portion of the first sliding member when the knob is not rotated. If the margin is large and the knob is rotated in the opening direction, the engagement margin of the projection with respect to the inner surface of the recess will decrease, and the engagement margin of the projection with respect to the inner surface of the recess will vary depending on the turning state of the knob. Yes.

  For this reason, if the knob is rotated in the opening direction by an external force or the like with the projection of the key cylinder entering the narrow recess, there is a risk that the engagement of the projection of the key cylinder with the inner surface of the recess will be reduced. The first sliding member may not be held so as not to slide.

  Accordingly, an object of the present invention is to provide a locking device for an opening / closing body that can reduce the number of components and can stably hold the opening / closing body in a closed state with respect to the opening.

  In order to achieve the above object, the present invention provides a locking device for an opening / closing body which is attached to an opening of a fixed body so as to be openable / closable, and includes a lock portion provided on both sides of the opening of the fixed body, and An attached housing, a rotating member rotatably attached to the housing, and a hook portion connected to the rotating member so as to slide in synchronization with the rotation of the rotating member and formed at the tip A pair of link rods engaged with and disengaged from the lock portion, a spring for biasing the link rod in a direction to engage each hook portion of the link rod with the lock portion, and the pair of link rods attached to the housing. An operation member that slides each hook portion of the link rod in a direction that does not engage the lock portion against the biasing force of the spring, and is rotatable with respect to the housing And a key cylinder attached to the housing separately from the operating member, and having a taper surface on the outer surface of the hook portion of the link rod. When the opening / closing body is closed, the tapered surfaces are pressed against the inner surfaces of both sides of the opening of the fixed body, and are drawn into the opening / closing body. The link rod has a pin connected to the link rod, the link rod has a fitting recess into which the pin is fitted, and the pin protrudes from the housing, and has a taper surface of the link rod. The pair of link rods are fitted to the fitting recesses from the opposite outer surface side, and one link rod is formed longer than the other link rod, and the key cylinder rotating body is rotated. By doing so, the key protrusion engages with the longer link rod of the pair of link rods, and each hook portion of the pair of link rods slides in a direction not engaged with the lock portion. The present invention provides a locking device for an opening / closing body that is configured to be regulated.

  In the opening / closing body locking device according to the present invention, the pair of link rods may have a center of rotation of the rotating member inside the link rods when viewed from a direction perpendicular to a rotation plane of the rotation body of the key cylinder. The inner sides are arranged to face each other so as to be arranged between the sides, and the key protrusion engages with the inner side of one link rod among the opposed inner sides of the pair of link rods. Preferably, a joint portion is provided, and the key cylinder is attached to the housing so as to be positioned on the side of the rotating member in the sliding direction of the link rod.

  In the opening / closing body locking device of the present invention, the rotation center of the rotation body of the key cylinder is attached to the housing so as to be positioned between the surfaces including the opposed inner sides of the pair of link rods. It is preferable.

In the opening / closing body locking device of the present invention, the key protrusion engages with the engaging portion of the link rod, and each hook portion of the pair of link rods slides in a direction not engaging with the locking portion. It is preferable that the key protrusion and the rotation center of the rotating body are arranged along the sliding direction of the link rod in a state where the movement is restricted.
Another aspect of the present invention is a locking device for an opening / closing body that is attached to an opening of a fixed body so as to be openable / closable, and is a lock provided on either side of the opening / closing body or both sides of the opening of the fixed body. Part, a housing attached to the other of the opening and closing body or the fixed body, a rotating member rotatably mounted on the housing, and a sliding operation in synchronization with the rotation of the rotating member, A pair of link rods with hook portions formed at the ends engaging and disengaging with the lock portions; springs for urging the link rods in a direction to engage the hook portions of the link rods with the lock portions; An operating member attached to the housing and sliding each hook portion of the pair of link rods against a biasing force of the spring in a direction not engaging with the lock portion; and the housing A key cylinder attached to the housing separately from the operation member, the key cylinder including a key cylinder that is rotatable with respect to the key projection. By rotating the rotating body, the key protrusion is engaged with the rotating member, and the hook portions of the pair of link rods are restricted from sliding in a direction not engaged with the lock portion. The present invention provides a locking device for an opening / closing body characterized in that it is configured.
In the locking device for the opening and closing body, the key protrusion of the key cylinder is engaged and disengaged from the outer periphery of the rotating body, and an engaging portion for restricting the sliding of the pair of link rods is extended to a predetermined length. Preferably it is.

  According to the present invention, when the opening of the fixed body is closed by the opening / closing body and the hook portions of the pair of link rods are engaged with the lock portions, the key cylinder is rotated. Is engaged with one of the link rods, or engaged with the rotating member, and the sliding movement of the link rod is directly or indirectly restricted so that the opening of the fixed body is closed by the opening / closing body. Can be locked.

  Since the key cylinder is attached to the housing separately from the operation member, the key cylinder is prevented from moving in conjunction with the operation member, and the engagement of the key protrusion with the link rod or the rotation member is maintained. The key projection can be securely held in the state of being engaged with the link rod or the rotating member, and as a result, the sliding movement of the link rod is surely restricted, and the opening / closing body is closed at the opening of the fixed body It can be stably held in a state. In addition, since the key protrusion of the key cylinder is used to restrict one slide operation of the link rod or the rotation operation of the rotating body, thereby restricting the slide operation of the link rod. The number of points can be reduced and the structure can be simplified.

It is a disassembled perspective view which shows one Embodiment of the locking device of the opening / closing body which concerns on this invention. It is the perspective view which looked at the same locking device from the back side. The housing which comprises the locking device is shown, (a) is the perspective view, (b) is the perspective view seen from the direction different from (a). The rotation member which comprises the lock device is shown, (a) is the perspective view, (b) is the perspective view seen from the direction different from (a). The operation member which comprises the lock device is shown, (a) is the perspective view, and (b) is the perspective view seen from the direction different from (a). It is the same locking device, Comprising: It is a principal part enlarged front view in the state which removed the operation member. FIG. 3 is an enlarged rear view showing a rotating member and an operation member in the locking device. It is a principal part expanded rear view of the same locking device. FIG. 9 is an enlarged rear view of a main part when the key cylinder is operated from the state of FIG. 8. It is a principal part enlarged plan view of the same locking device. The state which closed the opening-and-closing body using the lock device is shown, (a) is the top view, and (b) is the front view. The state which opened the opening-closing body using the same locking device is shown, (a) is the top view, (b) is a front view. It is a principal part expansion perspective view which shows other embodiment of the locking device of the opening-closing body which concerns on this invention. In the same locking device, it is the principal part expansion perspective view seen from the back side. The rotation member which comprises the lock device is shown, (a) is the perspective view, (b) is the perspective view seen from the direction different from (a). It is a principal part expanded rear view of the same locking device. It is a principal part expanded rear view at the time of operating a key cylinder from the state of FIG.

  Hereinafter, with reference to FIGS. 1-12, one Embodiment of the locking device of the opening-closing body which concerns on this invention is described.

  As shown in FIG. 1, an opening / closing body locking device 10 (hereinafter referred to as “locking device 10”) in this embodiment is a glove box 1 (“fixed body” in the present invention) provided on an instrument panel of a vehicle. The opening 5 is used for opening and closing a lid 5 ("opening / closing body" in the present invention) attached to be openable and closable.

  As shown in FIG. 12, concave lock portions 3, 3 are provided on the inner surfaces of both sides of the opening 2 of the glove box 1. As shown in FIG. 1, the lid 5 has a panel 6 in which a long hole-like mounting hole 6a is formed, and a box 7 disposed on the upper rear side of the panel 6, both sides of the lower part thereof. The support piece 8 is attached to the opening 2 of the glove box 1 so as to be openable and closable. A locking device 10 is arranged in the internal space between the panel 6 and the box 7. Further, rod insertion holes 7a and 7a are formed from both sides in the width direction of the box 7, respectively.

  As shown in FIG. 1, the locking device 10 in this embodiment is configured to be rotatable on the housing 20 attached to the lid 5, the bezel 40 attached to the front side of the housing 20, and the housing 20. A direction in which the mounted rotating member 50, a pair of link rods 70 and 71 connected to the rotating member 50, and the hook portions 73 of the link rods 70 and 71 are engaged with the lock portions 3 and 3. The torsion spring 90 that urges the rotation member 50 to rotate, the operation member 60 that is attached to the housing 20 so as to be pushed along the rotation axis direction of the rotation member 50, and the housing 20 A coil spring 95 that urges the operating member 60 in a direction away from the operating member 60, a rotating body 83, and a key protrusion 85 protruding from the back surface thereof (FIG. 3B). Together with a reference), the pivotally mounted to the housing 20, and is mainly composed of the key cylinder 80. for restricting the sliding movement of the link rod 70, 71.

  As shown in FIG. 4A, the torsion spring 90 includes a coil portion 91, one end portion 92 extending from one end of the coil portion 91, and the other end portion extending from the other end of the coil portion 91. 93 and forms a “spring” in the present invention.

  As shown in FIGS. 2 and 3, the housing 20 has a horizontally long box shape that fits into the mounting hole 6 a of the lid 5, and the inside of the peripheral wall 21 is partitioned by a partition wall 23, so that the rotating member 50 or A rectangular frame-shaped concave portion 24 in which the operation member 60 and the like are accommodated and a cylindrical key cylinder arrangement portion 25 in which the key cylinder 80 is arranged are provided in parallel in the width direction of the housing 20. A plurality of attachment pieces 21 a are extended on the outer periphery of the peripheral wall 21, and the housing 20 is attached to the lid 5 via these attachment pieces 21 a.

  A cylindrical shaft portion 27 (see FIG. 3A) projects from the front center of the bottom 24a of the recess 24 toward the front opening. The shaft portion 27 rotatably supports the rotating member 50, supports one end portion of the coil spring 95, and supports the coil portion 91 of the torsion spring 90 (FIG. 4A). And FIG. 6).

  As shown in FIG. 2, FIG. 3B, and FIG. 8, plate-like guide walls 29 are provided along the length direction of the housing 20 from the upper and lower side portions and the central portion on the back side of the housing 20. It protrudes and forms a slide guide for the pair of link rods 70 and 71.

  In the bottom 24a of the recess 24, arc-shaped pin moving holes 31, 31 are formed at positions facing the circumferential direction around the shaft portion 27. A tongue-shaped restricting piece 33 extends on the inner periphery of one pin moving hole 31 and the other end 93 of the torsion spring 90 extends on the inner periphery of the other pin moving hole 31 on the partition wall 23 side. The spring latching | locking part 35 which latches is formed (refer Fig.3 (a) and FIG. 6). As shown in FIG. 6, a plurality of slide holes 37 are formed on the inner periphery of the recess 24.

  As shown in FIG. 1, the bezel 40 has a horizontally long plate shape having a key cylinder arrangement hole 41 and an operation member arrangement hole 43, and a plurality of engagement pieces 45 are provided on the outer periphery thereof. By engaging these engagement pieces 45 with engagement claws 21b (see FIG. 3B) projecting from the outer periphery of the peripheral wall 21 of the housing 20, the bezel 40 is mounted on the front side of the housing 20. It is like that.

  Next, the rotating member 50 that is rotatably mounted on the housing 20 will be described with reference to FIGS.

  The rotating member 50 has a cylindrical rotating body 51, and the rotating member 50 is rotatably supported by the housing 20 by inserting the shaft portion 27 of the housing 20 into the rotating body 51. It is like that.

  Further, extending portions 52, 52 are extended from opposing portions on the outer periphery of the rotating body 51. A pin 53 protrudes from the back surface side of the distal end portion of each extending portion 52, and a cam protrusion 55 protrudes from the surface side of the proximal end portion. Each cam projection 55 has an arcuate distal end surface 55a and a protruding portion 55b projecting from the base end portion. Further, spring locking grooves 55c are formed on both sides of the projecting portion 55b of the base end portion. Each is formed. The protrusion 55b engages with the restriction piece 33 of the housing 20 to restrict the pins 53 and 53 of the rotating member 50 from coming off from the pin moving holes 31 and 31 (see FIG. 6). .

  The torsion spring 90 is disposed on the outer periphery of the tip end of the shaft portion 27 with the coil portion 91 abutting the periphery of the one end surface of the rotating body 51 (see FIG. 4A), and the one end portion 92 is the cam protrusion. The other end portion 95c is locked to the spring locking portion 35 (see FIG. 6) and is attached to the housing 20 and the rotating member 50. The rotating member 50 is urged to rotate in the direction of arrow A1 in FIG.

  Next, the pair of link rods 70 and 71 connected to the rotating member 50 will be described.

  As shown in FIGS. 1 and 2, the pair of link rods 70, 71 has a shape extending linearly with a predetermined length, and the link rod 70 is formed longer than the link rod 71.

  In addition, a hook portion 73 having a tapered outer surface is formed at the tip of each link rod 70, 71, and a concave fitting recess 75 is formed on the base end side of each link rod 70, 71. , 75 are formed. By fitting the pins 53 and 53 of the rotating member 50 into the fitting recesses 75 and 75, respectively, the pair of link rods 70 and 71 are located at the opposite positions on the outer periphery of the rotating member 50. The sides are pivoted (see FIGS. 2 and 8). Further, as shown in FIGS. 2 and 8, in relation to the key cylinder 80, the pair of link rods 70 and 71 are viewed from a direction perpendicular to the rotation plane of the rotation body 83 of the key cylinder 80. The inner sides 77 and 77 are arranged to face each other so that the rotation center C1 of the rotating member 50 is arranged between the inner sides 77 and 77 of both link rods 70 and 71.

  The pair of link rods 70 and 71 are engaged with the lock portions 3 and 3 of the glove box 1 via the rotating member 50 that is urged by the torsion spring 90 in the direction of arrow A1 in FIG. Thus, the hook portions 73 and 73 are urged away from each other.

  In this embodiment, since the base end side of the link rods 70 and 71 is inserted between the three guide walls 29 projecting from the rear surface side of the housing 20, the pair of pivot rods are pivotally attached to the rotating member 50. The link rods 70 and 71 are arranged so as to face each other so that the inner sides 77 and 77 are substantially parallel to each other.

  As shown in FIG. 8, the key protrusion 85 of the key cylinder 80 is formed on the inner side 77 of one link rod 70 among the opposed inner sides 77 and 77 of the pair of link rods 70 and 71 arranged as described above. Engaging / disengaging (see FIG. 3B), an engaging portion 78 that restricts the sliding movement of the link rod 70 is provided.

  In the present embodiment, the link rod 70 is positioned so as to be close to the periphery of the key cylinder placement portion 25 in a state in which each hook portion 73 protrudes in a direction to engage with each lock portion 3 by the torsion spring 90. A convex engaging portion 78 projects from the inner side 77. The engaging portion 78 may not be convex, may be concave, or the like, and is not particularly limited as long as the key projection 85 of the key cylinder 80 can be engaged and disengaged.

  Next, the operation member 60 attached to the housing 20 so as to be able to be pushed in will be described with reference to FIGS.

  The operation member 60 has a pressing portion 61 having a horizontally long plate shape that fits into the concave portion 24 of the housing 20, and supports the other end portion of the coil spring 95 from the back side center of the pressing portion 61. A spring support protrusion 62 is provided to protrude.

  A pair of locking pieces 63, 63 project from both sides in the width direction on the back side of the pressing part 61, and a plurality of guide pieces 64 project from the rear side periphery of the pressing part 61. . Each locking piece 63 is formed with a locking claw 63a so that it can be bent through a U-shaped slit. Then, the pair of locking pieces 63 and 63 and the respective guide pieces 64 are inserted into the slide holes 37 of the housing 20 so that the operation member 60 is slidably guided, and the locking claws 63a of the locking pieces 63 are provided in the housing. The operating member 60 is held against the housing 20 by being locked to the edges of the slide holes 37 on both sides.

  A pair of wall portions 65, 65 are erected from the back side of the pressing portion 61. As shown in FIG. 7, the pair of wall portions 65, 65 are arranged at equal intervals in the circumferential direction with respect to the rotation center C <b> 1 of the rotation member 50, and viewed from the rotation axis direction of the rotation member 50. Sometimes, the cam projections 55 and 55 are formed in an arc shape along the rotation direction.

  As shown in FIGS. 5B and 10, the pair of wall portions 65, 65 abut against the cam protrusions 55, 55 of the rotating member 50, respectively, and the pushing force of the operating member 60 is rotated by the rotating member 50. Cam slopes 66, 66 are provided for converting into force, respectively. Here, the end surface of the arc-shaped wall portion 65 is cut obliquely along the circumferential direction so as to gradually decrease in height along the circumferential direction, thereby forming a cam slope 66. Further, the pair of wall portions 65 and 65 are arranged so that the highest one end portions 66a and 66a of the cam slope 66 and the lowest circumferential direction other end portions 66b and 66b face each other diagonally.

  The operation member 60 is always urged in a direction away from the front surface of the housing 20 by a coil spring 95 interposed between the operation member 60 and the engagement claw 63 a of the engagement piece 63. The housing 20 is configured to be able to be pushed into the housing 20 in a state in which the slide hole 37 is engaged with the edge of the slide hole 37 to prevent the slide hole 37 from coming off.

  When the operating member 60 is pushed into the housing 20 against the biasing force of the coil spring 95 from the above state (see FIG. 10), the cam projections are caused by the cam slopes 66, 66 of the wall portions 65, 65. 55 and 55 are pressed, the cam projection 55 slides on the cam slope, and the rotating member 50 moves in the arrow A2 direction (see FIG. 11B) against the rotational biasing force of the torsion spring 90. The hooks 73 and 73 of the pair of link rods 70 and 71 slide so as not to engage with the lock portions 3 and 3 of the glove box 1 (see FIG. 12). Since the inner sides 77 and 77 of the link rods 70 and 71 are held substantially parallel to each other by the guide wall 29 of the housing 20, the pair of link rods 70 and 71 maintain a substantially parallel state to each other. It comes to slide while.

  Next, the key cylinder 80 that is rotatably mounted on the housing 20 and restricts the sliding movement of the link rods 70 and 71 will be described.

  As shown in FIGS. 3 (a) and 3 (b), the key cylinder 80 is arranged in a substantially cylindrical case 81 and is rotatably arranged in the case 81, and a key hole 83a is provided on the front side. And a key protrusion 85 protruding from a position on the back side of the rotating body 83 and eccentric with respect to the rotation center C2 of the rotating body 83 (see FIG. 8).

  The key cylinder 80 is inserted into the key cylinder arrangement portion 25 of the housing 20, is attached to the housing 20 separately from the operation member 60, and is rotatable with respect to the housing 20. .

  In this embodiment, as shown in FIG. 8, the key cylinder 80 is positioned to the side of the rotating member 50 in the sliding direction A3 of the link rods 70 and 71, and the rotation center of the rotating body 83 is set. C2 is attached to the housing 20 so as to be positioned between the surfaces P and P including the opposed inner sides 77 and 77 of the pair of link rods 70 and 71.

  Then, when a key (not shown) is inserted into the keyhole 83a and the rotating body 83 is rotated with respect to the housing 20, the key protrusion 85 is rotated together with the rotating body 83, and as shown in FIG. The engagement portion 78 of the link rod 70 is engaged with the inner surface on the proximal end side.

  Further, the key cylinder 80 is attached to the housing 20 so that the rotation center C2 of the rotation body 83 is aligned with the rotation center C1 of the rotation member 50 in the sliding direction A3 of the link rods 70 and 71 (FIG. 8). 9), as shown in FIG. 9, the key protrusion 85 is engaged with the engaging portion 78 of the link rod 70, and the hook portion 73 is restricted from sliding in the direction not engaging with the lock portion 3. The key protrusion 85 and the rotation center C2 of the rotating body 83 are arranged along the slide direction A3 of the link rods 70 and 71.

  Next, the effect of the locking device 10 composed of the above-described components will be described.

  In the locking device 10, before the opening 2 of the glove box 1 is closed, the rotating member 50 is urged to rotate in the direction of arrow A 1 (see FIG. 6) by the torsion spring 90, whereby a pair of link rods 70, 71 is biased so that the hook portions 73 and 73 are separated from each other in the direction in which the lock portions 3 and 3 of the glove box 1 are engaged.

  Then, as shown in FIG. 8, the opening 2 of the glove box 1 is opened with the link rods 70 and 71 slidable without engaging the key protrusion 85 with the engaging portion 78 of the link rod 70. Push the lid 5 in to close it. Then, the taper surfaces of the hook portions 73 of the link rods 70 and 71 are pressed against the inner surfaces on both sides of the opening 2 so that the link rods 70 and 71 are inward of the lid against the rotational biasing force of the torsion spring 90. When the hook portions 73 reach the concave lock portions 3 and 3 of the opening 2, the rotating member 50 is urged to rotate by the torsion spring 90, and the link rods 70 and 71 are again lidded. Pushed outward, the hook portions 73 and 73 engage with the lock portions 3 and 3, respectively, so that the opening 2 of the glove box 1 can be locked in a closed state with the lid 5 (FIG. 11). reference).

  When a key (not shown) is inserted into the keyhole 83a in the above state and the rotating body 83 is rotated with respect to the housing 20, the key protrusion 85 is rotated together with the rotating body 83 as shown in FIG. Since the engaging portion 78 is engaged with the inner surface of the base end portion side, the sliding operation of the link rod 70 is restricted, and the sliding operation of the link rod 71 interlocked with the link rod 70 via the rotating member 50 is also performed. Being regulated, the opening 2 of the glove box 1 can be held in a closed state with the lid 5.

  In this locking device 10, the key cylinder 80 is attached to the housing 20 separately from the operation member 60, so that the sliding operation of the link rods 70 and 71 is temporarily restricted by the key protrusion 85. Thus, even if an unexpected excessive pushing force or the like acts on the operation member 60, the key cylinder 80 can be prevented from moving in conjunction with the operation member 60. As a result, the engagement of the key protrusion 85 with the side surface of the engaging portion 78 of the link rod 70 can be maintained, so that the key protrusion 85 is securely engaged with the engaging portion 78 of the link rod 70. The sliding movement of the link rod 70 can be reliably regulated, and the sliding movement of the link rod 71 interlocked via the rotating member 50 can be reliably regulated. The opening 2 can be stably held in a closed state by the lid 5.

  Since the sliding operation of the pair of link rods 70 and 71 is restricted as described above, the rotating operation of the rotating member 50 can be restricted and the pushing operation of the operating member 60 can be restricted. The user of the locking device 10 can surely grasp that the opening 2 of the glove box 1 is locked in the closed state by the lid 5 by not moving even when the operation member 60 is pressed. it can.

  In addition, since the key protrusion 85 of the key cylinder 80 is used to restrict the sliding movement of the link rod 70, a member such as a stopper member in the grab box of Patent Document 1 is unnecessary, and the locking device 10 The total number of parts can be reduced, and the lock device 10 can have a simple structure, and the cost can be reduced.

  Further, in the present embodiment, as shown in FIG. 8, the pair of link rods 70, 71 is the center of rotation of the rotating member 50 when viewed from the direction perpendicular to the rotating plane of the rotating body 83 of the key cylinder 80. The inner sides 77, 77 are arranged to face each other so that C 1 is arranged between the inner sides 77, 77 of both link rods 70, 71, and the engaging portion 78 protrudes from the inner side 77 of the link rod 70. The key cylinder 80 is disposed on the side of the rotating member 50 in the sliding direction A3 of the link rods 70 and 71, and the key protrusion 85 is engaged with the inner side 77 of the link rod 70. It engages with the portion 78. Therefore, the link rods 70 and 71 are arranged side by side in the vertical direction of the lock device 10, the thickness of the lock device 10 can be reduced, and the rotation member 50 and the link rod 70 and 71 are moved along the slide direction A3. Since the key cylinders 80 are arranged side by side and the width direction of the locking device 10 can be reduced, the locking device 10 can be made compact as a whole.

  In this embodiment, as shown in FIG. 8, the rotation center C <b> 2 of the rotation body 83 of the key cylinder 80 includes the surfaces P and P including the inner sides 77 and 77 facing the pair of link rods 70 and 71. Since it is located between the key rods 80 in the sliding direction A3 of the link rods 70 and 71, the key cylinder 80 can be arranged side by side at a position substantially aligned with the rotating member 50, and the lock device 10 can be made more compact. Can do. Furthermore, since the rotation member 50 and the key cylinder 80 are arranged along the slide direction A3 of the link rods 70 and 71, the appearance can be improved.

  In this embodiment, as shown in FIG. 9, in a state where the key protrusion 85 engages with the engaging portion 78 of the link rod 70 and the sliding operation of the link rod 70 is restricted, Since the rotation center C2 of the moving body 83 is arranged along the slide direction A3 of the link rods 70 and 71, the link rod 70 is pushed inward in the slide direction by an external force or the like in the same state. Thus, even if the pressing force F acts on the key protrusion 85 via the engaging portion 78, the pressing force F acts on the rotation center C2 of the rotating body 83, so that the rotation moment M hardly acts, and the key cylinder The 80 rotating bodies 83 can be made difficult to rotate, and the sliding operation of the link rod 70 can be more reliably regulated.

  On the other hand, when the lid 5 is opened from the opening 2 of the glove box 1, a key (not shown) is inserted into the key hole 83a of the key cylinder 80, and the rotating body 83 is moved in the direction opposite to the locking direction (see FIG. 9). By rotating, the key protrusion 85 is separated from the engaging portion 78 of the link rod 70, and the link rods 70 and 71 are slidable as shown in FIG.

  In this state, the operating member 60 is pushed into the housing 20 against the urging force of the coil spring 95. Then, the cam projections 55 and 55 of the rotating member 50 are pressed by the cam slopes 66 and 66 of the wall portions 65 and 65 of the operation member 60, respectively, and the cam projection 55 becomes the cam slope as shown by an arrow A4 in FIG. The rotary member 50 moves around the shaft portion 27 of the housing 20 against the rotational biasing force of the torsion spring 90 against the rotational biasing force of the torsion spring 90 while moving in the arrow A2 direction. Rotate in the direction (see FIG. 11B), and the hook portions 73, 73 of the pair of link rods 70, 71 slide to positions where they do not engage with the lock portions 3, 3 of the glove box 1 (see FIG. 12). The lid 2 can be opened by moving the lid 5 from the opening 2 of the glove box 1.

  FIGS. 13 to 17 show another embodiment of the locking device for an opening / closing body according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 13 to 15, the opening / closing body locking device 10 a (hereinafter, “locking device 10 a”) of this embodiment includes a housing 20 a and a rotating member 50 a rotatably mounted on the back side of the housing 20 a. The pair of link rods 70a and 71 connected to the rotating member 50a and the hook portions 73 of the link rods 70a and 71 are in a direction to engage with the lock portions 3 and 3 of the glove box 1. And a torsion spring 90a for rotating and energizing the rotation member 50a, and a knob-like operation member 60a rotatably attached to the front side of the housing 20a.

  The housing 20 a has a horizontally long rectangular frame-shaped base portion 22 and a key cylinder arrangement portion 25 a that is connected to one side portion of the base portion 22. A circular concave portion 26 for rotatably accommodating the rotating member 50 a is provided on the back side of the base portion 22, and is on the front side of the base portion 22 at a position corresponding to the concave portion 26. A notch hole 28 communicating with the recess 26 is formed. Further, a side wall 30 is erected from one side in the width direction on the front side of the base portion 22, and a support shaft 32 for rotatably supporting the operation member 60 a is projected on the inner surface thereof. A support shaft 32 similar to the above is projected from the inner surface of the base portion 22 adjacent to the key cylinder placement portion 25a.

  As shown in FIGS. 15 (a) and 15 (b), the rotating member 50a has a rotating body 51a, and on the front side of the rotating body 51a, a support shaft 54 projects from the center, and A protruding receiving portion 56 is projected from a predetermined position on the periphery. The rotating member 50a is accommodated in the recess 26 of the housing 20a, and the support shaft 54 is inserted into a support hole (not shown), so that the receiving portion 56 is aligned with the notch hole 28 of the housing 20a. The rotating member 50a is rotatably mounted, and the rotating member 50a is urged to rotate in the direction of arrow A1 (see FIG. 16) by a torsion spring 90a.

  Further, from the outer periphery of the rotating body 51a, a bar-like engagement portion 58 that extends and disengages with a key projection 85 of the key cylinder 80 and restricts the sliding movement of the link rod 70a is extended. Here, when the rotating member 50a is rotatably mounted on the housing 20a, the distal end portion of the engaging portion 85 extends from the outer periphery of the rotating body 51a so as to be disposed on the back side of the rotating body 83. .

  As shown in FIG. 16, a recess 72 is provided on the inner side 77 side of the link rod 70 a where the key cylinder 80 is disposed, and the key protrusion 85 rotates in the recess 72. It is supposed to be.

  The operation member 60a has a long plate-like front wall 67 and side walls 68 and 68 projecting from the back side on both sides in the width direction of the front wall 67. A housing hole is provided in a support hole (not shown) of the side walls 68 and 68. The operation member 60a is mounted on the housing 20a so as to be pivotable up and down by being inserted into the support shafts 32, 32 of 20a. On the back side of the front wall 67, a pressing member 69 that protrudes into the cutout hole 28 of the housing 20a and presses the receiving portion 56 of the rotating member 50a is projected.

  When the lower edge portion of the front wall 67 of the operation member 60a is gripped and rotated so that the operation member 60a is pulled upward, the pressing member 69 causes the receiving portion 56 of the rotation member 50a to move through the notch hole 28. The direction in which the hook members 73 and 73 of the pair of link rods 70a and 71 are not engaged with the lock portions 3 and 3 of the glove box 1 by pressing and rotating the rotating member 50a against the urging force of the torsion spring 90a. To slide.

  Then, with the rotational biasing force of the torsion spring 90a, with the hook portions 73 and 73 of the pair of link rods 70a and 71 engaged with the lock portions 3 and 3, respectively, a key (not shown) is inserted into the key hole 83a and When the moving body 83 is rotated with respect to the housing 20a, the key protrusion 85 is rotated together with the rotating body 83 and engages with the inner surface of the engaging portion 58 of the rotating member 50a (see FIG. 17). The sliding movement of the link rods 70a and 71 can be restricted by restricting the rotation of 50a.

  In the two embodiments described above, the link rods 70 and 70a and the link rod 71 are indirectly slid by biasing the rotating members 50 and 50a using the torsion springs 90 and 90a. However, for example, by using a tension spring, a coil spring or the like, one or both of the link rods 70, 70 a and the link rod 71 are directly connected so that the hook portion 73 is engaged with the lock portion 3. The rotating members 50 and 50a may be urged by sliding, or similarly using a tension spring, a coil spring or the like, and is not particularly limited. In that case, a tension spring, a coil spring or the like constitutes a “spring” in the present invention.

  Moreover, in the said embodiment, although a pair of link rod is interlock | cooperated via a rotor-shaped rotation member, it is not limited to this. For example, instead of a rotor-like rotating member, a pinion gear (which constitutes the “rotating member” of the present invention) is adopted, and a rack groove is formed in each of the pair of link rods, and the rack groove meshes with the pinion gear. Then, by sliding one link rod, the other link rod may be slid via the pinion gear.

  Further, in the above embodiment, the operation member 60 is attached so as to be able to be pushed into the housing 20, and the operation member 60a is attached so as to be rotatable relative to the housing 20a. It may be attached in a possible manner, and the manner of attaching the operating member to the housing is not particularly limited.

  Moreover, in the said embodiment, although the locking device of the opening / closing body was applied to the structure where the lid 5 was attached to the opening part 2 of the glove box 1 so that opening and closing was possible, it is not limited to this, For example, opening of an instrument panel A structure in which the glove box is pivotably attached to the instrument (the instrument panel is a “fixed body” and the glove box is an “opening / closing body”), and the lid is attached to the opening of the instrument panel so that it can be opened and closed. It may be applied to a structure (instrument panel is “fixed body”, lid is “opening / closing body”) or the like, and can be widely used for various opening / closing bodies that open and close the opening of the fixed body.

  Furthermore, a housing, a rotating member, a link rod, a spring, an operation member, and a key cylinder may be mounted on the fixed body side, and a lock portion may be provided on the opening / closing body side.

1 Glove box (fixed body)
2 Opening 3, 3a Locking 5, 5a Lid (opening / closing body)
10, 10a Locking device 20, 20a Housing 40 Bezel 50, 50a Rotating member 58 Engaging part 60, 60a Operating member 70, 70a, 71 Link rod 77 Inner side 78 Engaging part 80 Key cylinder 83 Rotating body 85 Key protrusion 90, 90a Torsion spring (spring)

Claims (6)

A locking device for an opening / closing body attached to the opening of the fixed body so as to be openable / closable,
Lock portions provided on both sides of the opening of the fixed body;
A housing attached to the opening and closing body;
A rotating member rotatably mounted on the housing;
A pair of link rods connected to the rotary member so as to slide in synchronization with the rotation of the rotary member, and a hook portion formed at the tip of the link rod is engaged with and disengaged from the lock portion;
A spring for urging the link rod in a direction to engage each hook portion of the link rod with the lock portion;
An operation member attached to the housing and sliding each hook portion of the pair of link rods in a direction not to engage with the lock portion against the biasing force of the spring;
A key cylinder that is rotatable with respect to the housing and that has a key protrusion protruding from the housing, and is attached to the housing separately from the operation member;
A taper surface is formed on the outer surface of the hook portion of the link rod, and when the opening / closing body is closed, the taper surface is pressed against the inner surfaces on both sides of the opening of the fixed body and pulled inward of the opening / closing body. Is configured as
The rotating member has a pin at a portion to which the link rod is connected, the link rod has a fitting recess into which the pin is fitted, and the pin protrudes from the housing, and the link rod From the outer surface side opposite to the taper surface, is fitted into the fitting recess,
In the pair of link rods, one link rod is formed longer than the other link rod,
By rotating the rotating body of the key cylinder, the key protrusion is engaged with the longer link rod of the pair of link rods, and each hook portion of the pair of link rods is engaged with the lock portion. An opening / closing body locking device characterized by restricting sliding in a non-engaging direction.   The pair of link rods are arranged so that the center of rotation of the rotating member is disposed between the inner sides of both link rods when viewed from a direction perpendicular to the rotating plane of the rotating body of the key cylinder. The key cylinders are arranged so that the sides are opposed to each other, and an engagement portion that engages the key protrusion is provided on the inner side of one of the pair of link rods on the inner side of the link rod. 2. The opening / closing body locking device according to claim 1, wherein the locking device is attached to the housing so as to be positioned on a side of the rotating member in a sliding direction of the link rod.   The lock of the opening-closing body of Claim 2 attached to the said housing so that the rotation center of the rotation body of the said key cylinder may be located between the surfaces containing the inner side which the said pair of link rod opposes. apparatus.   The key protrusion engages with the engaging portion of the link rod, and the key protrusion is restricted from sliding in a direction in which the hook portions of the pair of link rods are not engaged with the lock portion. The opening / closing body locking device according to claim 2 or 3, wherein the rotation center of the rotation body is arranged along the sliding direction of the link rod. A locking device for an opening / closing body attached to the opening of the fixed body so as to be openable / closable,
Lock portions provided on either side of the opening / closing body or both sides of the opening of the fixed body;
A housing attached to either the opening / closing body or the fixed body;
A rotating member rotatably mounted on the housing;
A pair of link rods that slide in synchronization with the rotation of the rotating member, and a hook portion formed at the tip engages and disengages the lock portion;
A spring for urging the link rod in a direction to engage each hook portion of the link rod with the lock portion;
An operation member attached to the housing and sliding each hook portion of the pair of link rods in a direction not to engage with the lock portion against the biasing force of the spring;
A key cylinder that is rotatable with respect to the housing and that has a key protrusion protruding from the housing, and is attached to the housing separately from the operation member;
By rotating the rotating body of the key cylinder, the key protrusion engages with the rotating member, and each hook portion of the pair of link rods slides in a direction not engaged with the lock portion. An opening / closing body locking device characterized by being configured to regulate.   The opening / closing body according to claim 5, wherein an engagement portion for restricting sliding of the pair of link rods is extended from the outer periphery of the rotating body by a predetermined length by engaging and disengaging a key projection of the key cylinder. Locking device.

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