Locking device for an opening / closing body

Abstract

Provided is a lock device which is for an opening / closing body and which increases the breaking strength of an operation member when the operation member is rotated to the maximum with respect to a base member. A lock device 10 comprises: a base member 30 and an operation member 50. The operation member 50 has: an operation plate part 51; an operation part 52; an operation load transmission wall part 57; a shaft part 61 disposed to protrude from opposing sides of the operation load transmission wall part; and a stopper part 63 disposed so as to be connected to the operation load transmission wall part 57 on a side, of the operation load transmission wall part 57, closer to the operation part 52 as compared to the shaft part 61. The base member 30 has: a pair of deformation regulation wall parts 35, 35 arranged outside of portions which are of the operation load transmission wall part 57 and at which the shaft part 61 is provided; shaft supports 37, 37; and a stopper receiver 41 that regulates rotation of the operation member 50.

Description

Technical Field

[0001] The present invention relates to a locking device for an opening / closing body that locks an opening / closing body that is attachably / detachably mounted to an opening of a fixed body in a closed state.

Background Art

[0002] For example, an opening / closing body such as a lid is attachably / detachably mounted to an opening formed in a fixed body such as a glove box of an automobile. And a locking device is provided between the opening and the opening / closing body so as to lock the opening / closing body when it is closed and to be able to release the lock when the opening / closing body is opened.

[0003] For example, Patent Document 1 below describes a locking device having a base member fixed to an outer member, an operation member rotatably supported by the base member, and a rod that can be engaged with and disengaged from a locked portion of a fixed member in conjunction with the rotation of the operation member. The operation member has an operation portion exposed on the front side of the outer member and a shaft support portion pivotally supported by the base member. The base member has a hook portion hooked on an attachment edge portion formed in the outer member and a locking claw portion that is locked to a locking edge portion formed on the back side of the outer member and restricts the movement of the base member in a direction away from the back surface of the outer member.

[0004] The base member has a pair of opposed wall portions, arc-shaped shaft support portions protruding from each wall portion, and a stopper portion provided between the pair of wall portions. On the other hand, the operation member has a long plate-shaped base portion, an operation portion provided at one longitudinal end of the base portion, a pair of side wall portions erected from side edges along the longitudinal direction of the base portion, arc-shaped groove-like shaft portions provided on each side wall portion, a cylindrical portion erected from the back side of the base portion in which a key cylinder hole portion is formed and into which a key cylinder is inserted, and a rotation stopper portion provided at the tip of the cylindrical portion in the erected direction.

[0005] The pair of side walls of the operating member are disposed outside the pair of walls of the base member, and the pair of shaft supports are inserted into the pair of shafts, so that the operating member is rotatably attached to the base member. Furthermore, when the operating member is rotated to its maximum extent relative to the base member, the rotation stopper of the operating member abuts against the stopper of the base member, restricting further rotation. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] WO2017 / 086427 Summary of the Invention [Problem to be solved by the invention]

[0007] In the case of the locking device of Patent Document 1, when the operating member is rotated to its maximum extent relative to the base member, the operating force (operating load) of the operating member is transmitted from the rotation stopper through the cylindrical portion in which the key cylinder hole is formed and the base to the pair of side walls and acts on the pair of shafts. In this case, to increase the breaking strength of the operating member, it is necessary to increase the rigidity of the rotation stopper, cylindrical portion, base, and pair of side walls, but this leads to an increase in mass, which makes it difficult to increase the breaking strength of the operating member, which is an inconvenience.

[0008] Therefore, an object of the present invention is to provide a locking device for an opening / closing body that can increase the breaking strength of the operating member when the operating member is rotated to its maximum extent relative to the base member without increasing the rigidity of the operating member. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention is a locking device for an opening / closing body that is detachably attached to an opening of a fixed body, comprising a locking portion provided on one of the fixed body or the opening / closing body, a locking member disposed on the other of the fixed body or the opening / closing body and engaging with and disengaging from the locking portion, a base member fixed to the other of the fixed body or the opening / closing body, and an operating member rotatably supported on the base member via a rotating portion and operating the locking member. The rotating portion consists of a shaft portion provided on one of the operating member or the base member and a shaft support portion provided on the other of the operating member or the base member and rotatably supporting the shaft portion. The operating member includes an operating plate portion extending in a plate shape, an operating portion provided at one end in the extending direction of the operating plate portion, an operating load transmission wall portion protruding from the back side of the operating plate portion, the shaft portion disposed on the operating member so as to protrude outward from both sides of the operating load transmission wall portion or the shaft support portion disposed on the operating load transmission wall portion, and a stopper portion continuously provided on the operating load transmission wall portion on the operating portion side of the shaft portion or the shaft support portion. The base member includes a pair of deformation restricting wall portions disposed outside a portion of the operating load transmission wall portion where the shaft portion or the shaft support portion is provided, the shaft support portion disposed on the pair of deformation restricting wall portions or the shaft portion disposed so as to protrude from the pair of deformation restricting wall portions toward the operating load transmission wall portion, and a stopper receiving portion that enables the stopper portion to abut and restricts the rotation of the operating member.

Effect of the Invention

[0010] According to the present invention, when the operation member is rotated maximally with respect to the base member by operating the operation portion, the stopper portion abuts against the stopper receiving portion, and the rotation of the operation member is restricted. At this time, since the stopper portion is continuously provided on the operation load transmission wall portion where the shaft portion or the shaft support portion is disposed, the operation load received by the stopper portion from the stopper receiving portion is transmitted to the shaft portion via the operation load transmission wall portion, and the portion of the operation load transmission wall portion where the shaft portion or the shaft support portion is disposed, or the shaft portion disposed so as to protrude from both sides of the operation load transmission wall portion or the shaft support portion disposed on the operation load transmission wall portion tends to deform so as to spread outward of the operation member, but the deformation is restricted by the pair of deformation restricting wall portions. As a result, without increasing the rigidity of the operation member, the breaking strength (the difficulty of breaking the operation member) of the operation member can be increased.

Brief Description of the Drawings

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Mode for Carrying Out the Invention

[0012] (First Embodiment of Locking Device for Opening / Closing Body) Hereinafter, with reference to the drawings, a first embodiment of a locking device for an opening / closing body according to the present invention will be described.

[0013] As shown in Fig. 1, the locking device 10 of the opening / closing body in this embodiment (hereinafter referred to as "locking device 10") is used to open / close and lock an opening / closing body 2 such as a glove box that is openably / closably attached to an opening 1a of a fixed body 1 such as an instrument panel of a vehicle.

[0014] The locking device 10 of this embodiment mainly includes a pair of locking portions 1b, 1b provided in the opening 1a of the fixed body 1, a pair of locking members 20, 20 disposed on the opening / closing body 2 and engaging / disengaging with the pair of locking portions 1b, 1b, a rotating member 25 rotatably supported by the opening / closing body 2 and slidingly operating the pair of locking members 20, 20 in conjunction, a biasing means (torsion spring 27) for biasing the pair of locking members 20, 20 in a direction to engage with the pair of locking portions 1b, 1b, a base member 30 fixed to the opening / closing body 2, and an operating member 50 rotatably supported by the base member 30 via a rotating portion and operating the pair of locking members 20, 20. In this embodiment, locking portions 1b, 1b in the shape of holes are provided on both inner surfaces in the width direction of the opening 1a of the fixed body 1. Further, the rotating portion in this embodiment includes a shaft portion 61 provided on the operating member 50 and a shaft support portion 37 provided on the base member 30 and rotatably supporting the shaft portion 61.

[0015] As shown in Figs. 2 and 3, the operating member 50 has an operating plate portion 51 extending in a plate shape with a predetermined length, an operating portion 52 provided at one end in the extending direction of the operating plate portion 51, an operating load transmission wall portion 57 (hereinafter also simply referred to as "transmission wall portion 57") protruding from the back side of the operating plate portion 51, the above shaft portions 61, 61 disposed to protrude outward from the operating member 50 from both sides of the transmission wall portion 57, and a stopper portion 63 continuously provided on the transmission wall portion 57 on the side of the operating portion 52 rather than the shaft portion 61. In the present invention, the meaning that the stopper portion 63 is continuously provided on the transmission wall portion 57 means that the stopper portion 63 is directly connected to the transmission wall portion 57 and integrally formed.

[0016] Also, as shown in FIGS. 2 and 5, etc., the base member 30 includes a pair of deformation restricting wall portions 35, 35 (hereinafter, also simply referred to as "restricting wall portions 35") disposed outside the portion of the transmission wall portion 57 where the shaft portions 61 are provided, the above-described shaft support portions 37, 37 formed in the pair of restricting wall portions 35, 35 for rotatably supporting the shaft portions 61, 61, and a stopper receiving portion 41 for allowing the stopper portion 63 to abut and restricting the rotation of the operation member 50.

[0017] As shown in FIG. 1, in this embodiment, lock portions 1b, 1b having a hole shape are provided on the inner surfaces on both sides in the width direction of the opening 1a of the fixed body 1. Also, as shown in FIG. 1, the opening / closing body 2 in this embodiment is composed of an outer member 3 disposed on the vehicle interior side and an inner member 4 disposed on the back side thereof. On one side in the width direction of the outer member 3, above it, a housing recess 5 having a horizontally long rectangular concave shape is formed. The base member 30 and the operation member 50 are housed in this housing recess 5 (see FIG. 6). Further, a long hole-shaped mounting hole 6 is formed at the bottom 5a of the housing recess 5. [[ID=**5]]

[0018] The base member 30 is configured to be mounted from the front side of the mounting hole 6. Here, the "front side" or "front surface side" means the side or surface located in the direction in which the opening / closing body opens from the opening of the fixed body such as a vehicle. When the fixed body is provided on a vehicle, the vehicle interior space side of the vehicle may be regarded as the "front side" or "front surface side". Also, the "back side" or "back surface side" means the side or surface opposite to the "front side" or "front surface side", that is, the side or surface located in the direction in which the opening / closing body closes. The "front side", "front surface side", "back side", and "back surface side" have the same meaning not only for the mounting hole but also for other members (such as the base member 30 and the operation member 50) described below.

[0019] As shown in Fig. 1, the inner member 4 has a box shape that is open at the top as a whole. Also, on the surface side (front side) of the inner member 4 that faces the outer member 3 side, in the upper part thereof, a horizontally long concave lock arrangement recess 4a for slidably arranging the pair of lock members 20, 20 is provided. Lock insertion holes 4b, 4b are respectively formed on both longitudinal sides of the lock arrangement recess 4a. Further, a rotating member support portion 7 for rotatably supporting the rotating member 25 projects from the surface side of the bottom surface of the lock arrangement recess 4a.

[0020] Also, as shown in Fig. 1 and Fig. 10, the pair of lock members 20, 20 in this embodiment have the same shape, the base end portion 21 side is bent in a crank shape, extends linearly toward the tip end side, and the tip end portion 22 is adapted to engage with and disengage from the lock portion 1b (see Figs. 10 and 11). A frame-shaped portion 23 having a square frame shape is provided on the tip end portion 22 side of each lock member 20.

[0021] The rotating member 25 has a substantially rhombic shape having a long axis (see Fig. 10), the middle portion in its longitudinal direction is rotatably supported by the rotating member support portion 7, and both longitudinal ends are connected to the base end portions 21, 21 of the pair of lock members 20, 20. By rotating the rotating member 25 in a predetermined direction, the pair of lock members 20, 20 slide synchronously via the rotating member 25. Further, a torsion spring 27 is to be attached to the rotating member 25, and as shown by the arrow A direction in Fig. 10, the rotating member 25 is rotationally biased, whereby the tip end portions 22, 22 of the pair of lock members 20, 20 are biased in the direction of engaging with the pair of lock portions 1b, 1b (arrow B direction in Fig. 10). Note that the tip end portions 22, 22 of the pair of lock members 20, 20 are inserted from the lock insertion holes 4b, 4b provided in the lock arrangement recess 4a.

[0022] Next, with reference to Figs. 2 and 5 to 8 etc., the base member 30 will be described in detail.

[0023] The base member 30 of this embodiment has a bottom wall 31 in the shape of a long plate that is long in one direction, a pair of side wall portions 32, 32 that stand upright from both side edges along the long side of the bottom wall 31 and extend along the extending direction of the bottom wall 31, a connecting wall 33 that is disposed on one end side in the longitudinal direction of the bottom wall 31 and connects the pair of side wall portions 32, 32, and a connecting wall 34 that is disposed on the other end side in the longitudinal direction of the bottom wall 31 and connects the pair of side wall portions 32, 32. It has a substantially elongated box shape with an opening on the ceiling (upper) side opposite to the bottom wall 31.

[0024] In the following description, the direction in which the bottom wall 31 extends is defined as the "extending direction X1", and the direction orthogonal to this extending direction X1 is defined as the "width direction Y1" (the same meaning applies to the base member 30 itself and each part other than the bottom wall 31 that constitutes the base member 30).

[0025] A slide groove 31a is formed in the bottom wall 31 to slidably receive the operating lever 65 (see FIG. 3) of the operating member 50. Further, protruding pieces 35a, 35a in the shape of a substantially trapezoidal peak are provided above the pair of side wall portions 32, 32 (on the side opposite to the bottom wall 31) and near the connecting wall 34.

[0026] As shown in FIG. 1, among the pair of side wall portions 32, 32, the portions near the other end in the extending direction X2 including the protruding pieces 35a form a pair of restricting wall portions 35, 35. These pair of restricting wall portions 35, 35 are arranged to face the outside of the portion of the transmission wall portion 57 where the shaft portion 61 is provided (here, the portion of the transmission wall portion 57 where the shaft portions 61, 61 are provided on a pair of flat surfaces 57b, 57b to be described later), and serve as portions that restrict the deformation of the transmission wall portion 57. The inner surfaces (opposing surfaces) of the pair of restricting wall portions 35, 35 are formed to be parallel to each other.

[0027] In addition, shaft support portions 37 each having a circular hole shape penetrate through projecting pieces 35a, 35a that constitute a pair of restricting wall portions 35, 35. Then, as shown in FIGS. 7 and 8, shaft portions 61 of the operation member 50 are inserted from the inside of each shaft support portion 37, and the operation member 50 is rotatably supported by the base member 30.

[0028] Further, on the outer surface of each side wall portion 32 on the side of the bottom wall 31, there are provided a flexible elastic engagement piece 38 formed via a U-shaped slit 38a, and a rib 39 projecting from a position adjacent to the elastic engagement piece 38. The elastic engagement piece 38 engages with the peripheral edge on the back side of the mounting hole 6, and the rib 39 engages with the peripheral edge on the front side of the mounting hole 6 (see FIG. 7).

[0029] Also, on the side of the bottom wall 31 of the connecting wall 33, a pair of hooks 40, 40 that engage with the peripheral edge on the back side of the mounting hole 6 project from both sides in the width direction Y1 thereof. Further, a notch portion 41a is formed by notching from the bottom wall 31 toward the ceiling opening in the middle portion of the connecting wall 33 in the width direction Y1, and a stopper receiving portion 41 is provided on the side of the connecting wall 33 opposite to the bottom wall 31 side through the notch portion 41a. Then, as shown in FIG. 9, when the operation portion 52 of the operation member 50 is rotated maximally with respect to the base member 30 in a direction away from the base member 30 and the bottom portion 5a of the housing recess 5, the stopper portion 63 abuts against the stopper receiving portion 41, and further rotation of the operation member 50 is restricted.

[0030] Also, on the side of the bottom wall 31 of the connecting wall 34, a pair of elastic engagement claws 42, 42 that engage with the peripheral edge on the back side of the mounting hole 6 are provided on both sides in the width direction Y1 thereof. Further, a rubber damper 43 is attached to a corner portion on one end side in the extending direction X1 of the base member 30, and the generation of impact sound is reduced when the operation portion 52 of the operation member 50 rotates in a direction approaching the base member 30 and the bottom portion 5a of the housing recess 5. Also, a coil spring 44 is arranged at a corner portion on the other end side in the extending direction X1 of the base member 30.

[0031] Next, with reference to FIGS. 2 to 8 and the like, the operation member 50 will be described in detail.

[0032] The operation member 50 of this embodiment is generally long in one direction and has an operation plate portion 51 that is substantially in the shape of a long plate and extends in a plate shape with a predetermined length. In the following description, the direction in which the operation plate portion 51 extends is defined as the "extension direction X2", and the direction orthogonal to this extension direction X2 is defined as the "width direction Y2" (the same applies to the operation member 50 itself, each part other than the operation plate portion 51 constituting the operation member 50, and the cover member 70 to be described later).

[0033] At one end (tip) of the operation plate portion 51 in the extension direction X2, an operation portion 52 is provided, which is a portion that the operator grips and operates when rotating the operation member 50. Also, the other end of the operation plate portion 51 in the extension direction X2 serves as a base end portion 53 that is rotatably supported by a pair of shaft support portions 37, 37 of the base member 30. Further, on the other end side of the operation plate portion 51 in the extension direction X2, a cylindrical hole-shaped cylinder insertion hole 51a for inserting the key cylinder 67 is formed. Also, on the back side of the operation plate portion 51 (the side facing the base member 30) and at a position near one end in the extension direction X2, a substantially cylindrical protrusion-shaped damper contact portion 51b that contacts the damper 43 is provided projecting.

[0034] Furthermore, from both side edges of the operation plate portion 51 in the width direction Y2, a pair of side walls 55, 55 extending along the extension direction X2 of the operation plate portion 51 are erected toward the back side (toward the base member 30). Also, on the other end side of the pair of side walls 55, 55 in the extension direction X2, recesses 59, 59 for receiving a pair of protruding pieces 35a, 35a of the base member 30 are formed.

[0035] And on the back side of the operation panel portion 51, a transmission wall portion 57 having a substantially cylindrical shape into which the key cylinder 67 can be inserted stands upright from the peripheral edge on the back side of the cylinder insertion hole 51a. As will be described in detail later, as shown in FIG. 8, this transmission wall portion 57 serves to transmit the operating load input via the stopper portion 63 to the pair of shaft portions 61, 61 (see arrow F2' in FIG. 8), and can be elastically deformed outward and inward in the radial direction. The above-mentioned operating load mainly travels through the semi-circular portion 57a (see FIG. 8) located on the operating portion 52 side rather than the pair of shaft portions 61, 61 within the transmission wall portion 57.

[0036] Also, on the outer periphery of both side portions of the transmission wall portion 57 facing each other in the circumferential direction (both side portions in the width direction Y2), flat surfaces 57b, 57b having a flat surface shape parallel to each other are formed at positions aligned with the pair of recesses 59, 59. From positions closer to the operation panel portion 51 of these pair of flat surfaces 57b, 57b (positions on the base end side in the standing direction of the transmission wall portion 57), the pair of shaft portions 61, 61 project coaxially.

[0037] Furthermore, as shown in FIG. 4, when the operating member 50 is viewed from the back side (when viewed from the back side), the pair of shaft portions 61, 61 extend along the width direction Y2 of the operating member 50 from a position closer to the other end (closer to the base end portion 53) in the extending direction X2 of the operating member 50 with respect to the axis C of the transmission wall portion 57, and are connected to the transmission wall portion 57. Also, as shown in FIG. 3, at the tip of each shaft portion 61, a tapered surface 61a that is obliquely cut from the base end side in the standing direction of the transmission wall portion 57 toward the tip side in the standing direction is formed, facilitating the insertion of the shaft portion 61 from the inside of the shaft support portion 37.

[0038] Incidentally, when assembling the operation member 50 to the base member 30, a pair of shaft portions 61, 61 of the operation member 50 are inserted between a pair of projecting pieces 35a, 35a of the base member 30, and the operation member 50 is pushed into the base member 30. Then, when the pair of shaft portions 61, 61 are inserted into the pair of shaft support portions 37, 37 of the base member 30 from the inside (see FIGS. 7 and 8), the operation member 50 is pivotally supported so as to be rotatable with respect to the base member 30. As a result, a pair of restricting wall portions 35, 35 of the base member 30 are arranged to face the outside of the pair of flat surfaces 57b, 57b (see FIGS. 7 and 8). In particular, the projecting pieces 35a, 35a constituting the pair of restricting wall portions 35, 35 are arranged outside the portions of the pair of flat surfaces 57b, 57b where the pair of shaft portions 61, 61 are provided. Note that the inner surfaces of the pair of flat surfaces 57b, 57b and the pair of restricting wall portions 35, 35 including the projecting pieces 35a, 35a are both flat surfaces. Therefore, the flat surface 57b and the inner surface of the restricting wall portion 35 are arranged to face each other at a close position, and the gap between the flat surface 57b and the inner surface of the restricting wall portion 35 is small. Then, as shown in FIGS. 6 and 9, the operation member 50 rotates about the pair of shaft portions 61, 61 as a rotation fulcrum so that the operation portion 52 of the operation plate portion 51 of the operation member 50 approaches and separates from the base member 30 and the bottom portion 5a of the housing recess 5.

[0039] Also, as shown in FIG. 6, a coil spring 44 is interposed in a compressed state between the other end portion of the operation member 50 in the extending direction X2 and the other end portion of the base member 30 in the extending direction X1. Therefore, as shown in FIG. 9, when the operator releases his hand from the operation portion 52 in a state where the operation member 50 is rotated with respect to the base member 30 so that the operation portion 52 of the operation plate portion 51 of the operation member 50 separates from the base member 30 and the bottom portion 5a of the housing recess 5, the operation portion 52 is rotationally biased in a direction approaching the base member 30 and the bottom portion 5a of the housing recess 5.

[0040] Further, as shown in FIG. 3, at the tip end portion of the transmission wall portion 57 in the standing direction, a stopper portion 63 protrudes from the outer surface on the operation portion 52 side with respect to the pair of shaft portions 61, 61. This stopper portion 63 is arranged orthogonally to the pair of shaft portions 61, 61 and is continuously provided on the transmission wall portion 57. That is, the transmission wall portion 57, the pair of shaft portions 61, 61, and the stopper portion 63 are integrally and continuously formed. And, as shown in FIG. 9, when the operation member 50 is rotated to the maximum with respect to the base member 30 so that the operation portion 52 of the operation member 50 is separated from the base member 30 and the bottom portion 5a of the housing recess 5, this stopper portion 63 abuts against the stopper receiving portion 41 to restrict further rotation of the operation member 50.

[0041] Also, as shown in FIG. 3, an operation lever 65 stands upright from the back side of one end portion side of the operation plate portion 51 in the extending direction X2. A part of this operation lever 65 is connected to a portion facing the portion provided with the stopper portion 63 in the circumferential direction of the transmission wall portion 57, and stands upright higher than the tip end portion in the standing direction of the transmission wall portion 57. Further, the operation lever 65 is inserted from the back side of the slide groove 31a of the base member 30 and enters the frame-shaped portion 23 of one of the lock members 20. When the operation portion 52 of the operation member 50 rotates in a direction away from the base member 30 and the bottom portion 5a of the housing recess 5, the operation lever 65 presses the frame-shaped portion 23 of one of the lock members 20, so that the tip end portions 22, 22 of the pair of lock members 20, 20 are slid in a direction not engaging with the pair of lock portions 1b, 1b of the fixed body 1 via the rotating member 25 (see FIG. 11).

[0042] And in this locking device 10, when the operation portion 52 is operated to rotate the operation member 50 with respect to the base member 30 and the stopper portion 63 abuts against the stopper receiving portion 41, the operation load from the stopper receiving portion 41 is input to the stopper portion 63, and the operation load is transmitted from the stopper portion 63 to the transmission wall portion 57, and further transmitted to the shaft portion 61 through the transmission wall portion 57.

[0043] That is, from the state shown in FIG. 6, when the operation portion 52 of the operation member 50 is gripped and the operation portion 52 is rotated maximally with respect to the base member 30 in a direction away from the base member 30 and the bottom portion 5a of the accommodation recess 5 as shown by the arrow F1, as shown in FIG. 9, the stopper portion 63 abuts against the stopper receiving portion 41, and further rotation of the operation member 50 is restricted. Then, the stopper portion 63 receives the operation load F1' from the stopper receiving portion 41. That is, since the operation load F1' is input from the stopper receiving portion 41 to the stopper portion 63, the operation load F1' is transmitted from the stopper portion 63 to the transmission wall portion 57.

[0044] Then, the above-described operation load F1' is transmitted from the circumferential center of the semi-circular portion 57a on the operation portion 52 side of the transmission wall portion 57, where the stopper portion 63 is located, that is, from the transmission wall portion 57, to the base end portion side in the axial direction of the semi-circular portion 57a as shown by the arrow F2 in FIG. 9, and is also transmitted to both end portions sides in the circumferential direction of the semi-circular portion 57a as shown by the arrow F2' in FIG. 8. As a result, the above-described operation load F1' is applied to the portions of the transmission wall portion 57 where the shaft portions 61, 61 are provided, that is, to the portions of the pair of flat surfaces 57b, 57b constituting the transmission wall portion 57 where the pair of shaft portions 61, 61 are provided. Thereby, as shown by the arrow F3 in FIG. 8, the pair of flat surfaces 57b, 57b tend to be elastically deformed so as to spread in a direction away from each other (it can also be said that the pair of flat surfaces 57b, 57b tend to be elastically deformed outward in the radial direction of the transmission wall portion 57 so that the distance between the base end portions of the pair of shaft portions 61, 61 increases, and further, it can also be said that the pair of shaft portions 61, 61 are elastically deformed outward in the radial direction of the transmission wall portion 57).

[0045] At this time, a pair of restricting wall portions 35, 35 are disposed opposite to each other outside the pair of flat surfaces 57b, 57b. In particular, outside the portions of the pair of flat surfaces 57b, 57b where the pair of shaft portions 61, 61 are provided, a pair of protruding pieces 35a, 35a constituting the pair of restricting wall portions 35, 35 are disposed opposite to each other. Therefore, the radial outward deflection deformation of the portions of the pair of flat surfaces 57b, 57b where the pair of shaft portions 61, 61 are provided and the pair of shaft portions 61, 61 with respect to the transmission wall portion 57 is restricted. In this embodiment, a key cylinder 67 is inserted and disposed inside the transmission wall portion 57 so that the radial inward deflection deformation of the transmission wall portion 57 is restricted.

[0046] (Modification example) The shape, structure, layout, etc. of the lock portion, lock member, base member, operation member, and each part (operation plate portion, operation load transmission wall portion, shaft portion, stopper portion, etc.) constituting the operation member, and further each part (deformation restricting wall portion, shaft support portion, stopper receiving portion, etc.) constituting the base member, which form the lock device of the opening / closing body in the present invention, are not limited to the above-described aspects.

[0047] Also, in this embodiment, as described above, for example, it is applied to a structure in which a box-shaped glove box is rotatably attached to an opening of an instrument panel (in this case, the instrument panel forms a "fixed body" and the glove box forms an "opening / closing body"). However, it may also be applied to a structure in which a lid is attached to the opening of the instrument panel so as to be openable and closable (in this case, the instrument panel forms a "fixed body" and the lid forms an "opening / closing body"), and it can be widely used for various opening / closing bodies that open and close the opening of the fixed body.

[0048] Furthermore, in this embodiment, the mounting hole 6 is formed in the opening / closing body 2 and the lock member 20 is slidably disposed in the opening / closing body 2. However, the mounting hole may be formed in the fixed body and the lock member may be slidably disposed on the fixed body side.

[0049] In addition, although the locking portion 1b in this embodiment is in the shape of a hole, the locking portion may not be in the shape of a hole, and may be concave, protruding, frame-shaped, etc. Further, the locking portion may be provided on the opening and closing body instead of the opening of the fixed body.

[0050] Furthermore, the torsion spring 27, which is the biasing means in this embodiment, biases the rotation member 25 in the rotational direction, thereby biasing the locking member 20 connected to the rotation member 25 in the direction of engaging with the locking portion 1b (see FIG. 10). However, as the biasing means for biasing the locking member in the direction of engaging with the locking portion, for example, a tension spring that pulls one side of the locking member toward the locking portion side may be used.

[0051] In this embodiment, when the operation member 50 is rotated as described above, one locking member 20 is slid, and the other locking member 20 is slid via the rotation member 25. However, the rotation member may be rotated by the rotation operation of the operation member, and thereby the pair of locking members may be configured to be slid.

[0052] Furthermore, the opening and closing body 2 in this embodiment is composed of an outer member 3 and an inner member 4, but the opening and closing body may be composed of a single plate material.

[0053] In addition, the shaft support portion 37 formed on the base member 30 is in the shape of a circular hole, but the shaft support portion may be, for example, an arc-shaped groove (which will be described in the following embodiments) or an arc-shaped protrusion.

[0054] Furthermore, the pair of shaft portions 61, 61 in this embodiment are continuously provided on the transmission wall portion 57, but the shaft portions may be separate from the operation load transmission wall portion (which will be described in the following embodiments). Note that the shape of the shaft portion conforms to the shape of the shaft support portion. For example, when the shaft support portion is an arc-shaped groove as described in paragraph 0053, it is preferably an arc-shaped protrusion.

[0055] Also, in this embodiment, a key cylinder 67 is inserted and arranged inside the transmission wall portion 57 so that inward deflection deformation of the transmission wall portion 57 in the radial direction is restricted. However, the configuration may be such that the key cylinder is not inserted into the operation load transmission wall portion, or a configuration in which a member different from the key cylinder is inserted and arranged inside the operation load transmission wall portion (this will be described in the embodiments below).

[0056] Furthermore, in this embodiment, the rotating portion that rotatably supports the operation member 50 on the base member 30 is composed of a shaft portion 61 provided on the operation member 50 and a shaft support portion 37 provided on the base member 30. However, as the rotating portion, a configuration composed of a shaft portion provided on the base member and a shaft support portion provided on the operation member may also be used.

[0057] In this case, the shaft support portion is arranged on the operation load transmission wall portion that constitutes the operation member, and the stopper portion that constitutes the operation member is continuously provided on the operation member side of the shaft support portion of the operation load transmission wall portion. On the other hand, the shaft portion is arranged to protrude from the pair of deformation restricting wall portions that constitute the base member toward the operation load transmission wall portion. That is, the shaft portion is arranged to protrude inward from the pair of deformation restricting wall portions toward the operation load transmission wall portion arranged inside the pair of deformation restricting wall portions.

[0058] Also, the transmission wall portion 57 in this embodiment has a substantially cylindrical shape. However, the operation load transmission wall portion may be, for example, semi-cylindrical, triangular cylindrical, V-shaped frame, U-shaped frame, or the like.

[0059] FIG. 12 shows an operation load transmission wall portion 68 of a modified example (hereinafter also simply referred to as "transmission wall portion 68"). This transmission wall portion 68 includes a pair of inclined ribs 68a, 68a extending obliquely outward from one end side to the other end side in the extending direction X2 of the operation member 50A, bent ribs 68b, 68b formed by bending at the tip ends in the extending direction of the pair of inclined ribs 68a, 68a and extending along the extending direction X2 of the operation member 50A, a first connecting rib 68c connecting the bent ribs 68b, 68b and extending along the width direction Y2 of the operation member 50A, and a second connecting rib 68d extending from the base end portions in the extending direction of the pair of inclined ribs 68a, 68a along the extending direction X2 of the operation member 50A and connected to the center in the extending direction of the first connecting rib 68c, forming a frame shape. Further, a stopper portion 63 is provided at the base end portions in the extending direction of the pair of inclined ribs 68a, 68a and the second connecting rib 68d, and shaft portions 61, 61 project from the outer surfaces of the bent ribs 68b, 68b.

[0060] In the case of such a transmission wall portion 68, when the operation load input from the stopper receiving portion 41 to the stopper portion 63 is transmitted from the stopper portion 63 to the transmission wall portion 57, the operation load is transmitted along the pair of inclined ribs 68a, 68a (see arrow F2' in FIG. 12) and acts on the pair of bent ribs 68b, 68b, causing the pair of bent ribs 68b, 68b to bend and deform so as to expand in a direction away from each other (see arrow F3 in FIG. 12). However, also in this case, a pair of deformation restricting wall portions (not shown) are arranged outside the pair of bent ribs 68b, 68b, restricting the bending deformation of the pair of bent ribs 68b, 68b in the radially outward direction.

[0061] (Function and Effect) Next, the function and effect of the locking device 10 having the above configuration will be described.

[0062] In this locking device 10, when the opening / closing body 2 is closed from the state where the opening / closing body 2 is opened from the opening 1a of the fixed body 1 and the tip ends 22, 22 of the pair of locking members 20, 20 are engaged with the locking portions 1b, 1b of the fixed body 1 (see FIG. 10), the opening / closing body 2 is locked in the closed state.

[0063] From this state, as shown in FIG. 9, when the operating portion 52 of the operating member 50 is rotated in a direction away from the base member 30 and the bottom portion 5a of the housing recess 5, as shown in FIG. 11, the tip portion 22 of one locking member 20 is pulled in a direction disengaging from the locking portion 1b against the rotational biasing force of the rotating member 25, and in conjunction therewith, the tip portion 22 of the other locking member 20 is pulled in a direction disengaging from the locking portion 1b via the rotating member 25. Thus, the locked state of the opening / closing body 2 is released, and the opening / closing body 2 can be opened from the opening 1a of the fixed body 1.

[0064] And in this locking device 10, as described in paragraph 0043 above, when the operating portion 52 of the operating member 50 is gripped and the operating portion 52 is rotated to the maximum extent with respect to the base member 30, the stopper portion 63 abuts against the stopper receiving portion 41, and the operating load F1' is input from the stopper receiving portion 41 to the stopper portion 63, and this operating load F1' is transmitted from the stopper portion 63 to the transmission wall portion 57 (see FIG. 9). Then, as described in paragraph 0044 above, the operating load F1' travels along the semi-circular portion 57a of the transmission wall portion 57 (see the arrow F2' in FIG. 8), is applied to the pair of flat surfaces 57b, 57b, and as shown by the arrow F3 in FIG. 8, the portions of the pair of flat surfaces 57b, 57b provided with the pair of shaft portions 61, 61 and the pair of shaft portions 61, 61 tend to be elastically deformed so as to expand in a direction away from each other. At this time, since the pair of restricting wall portions 35, 35 are disposed opposite to each other outside the pair of flat surfaces 57b, 57b (here, the pair of projecting pieces 35a, 35a are disposed opposite to each other), the portions of the pair of flat surfaces 57b, 57b provided with the pair of shaft portions 61, 61 and the radial outward elastic deformation of the pair of shaft portions 61, 61 of the transmission wall portion 57 can be restricted. As a result, without increasing the rigidity of the operating member 50, the breaking strength (the difficulty of breaking the operating member 50) of the operating member 50 can be enhanced.

[0065] Also, in this embodiment, the transmission wall portion 57 has a cylindrical shape into which a key cylinder 67 can be inserted. <S

[0066] According to this aspect, in the state before inserting the key cylinder 67 into the transmission wall portion 57, the transmission wall portion 57 can be easily deformed inward in the radial direction. Therefore, when arranging the transmission wall portion 57 between the pair of restricting wall portions 35, 35 of the base member 30 in order to assemble the operating member 50 to the base member 30, the transmission wall portion 57 can be arranged, and it becomes easier to support the shaft portion 61 by the shaft support portion 37, and the workability of assembling the operating member 50 to the base member 30 can be improved. Further, when the key cylinder 67 is inserted into the transmission wall portion 57 in the state where the shaft portion 61 is supported by the shaft support portion 37, the deformation of the transmission wall portion 57 inward in the radial direction can be restricted, so that the rigidity of the transmission wall portion 57 itself and the shaft portion 61 and the stopper portion 63 provided on the transmission wall portion 57 can be increased.

[0067] (Second Embodiment of the Locking Device for the Opening / Closing Body) In FIGS. 13 to 18, a second embodiment of the locking device for the opening / closing body according to the present invention is shown. In addition, the same reference numerals are given to substantially the same parts as those in the above embodiment, and the description thereof is omitted.

[0068] In the locking device 10B for the opening / closing body of this embodiment (hereinafter, simply referred to as "locking device 10B"), a pair of cutout portions 59B, 59B into which a pair of restricting wall portions 35, 35 enter are formed on both sides of the operation plate portion 51 along the extending direction X2. The operating member 50B further has a cover member 70 disposed on the front side of the operation plate portion 51, and wall portions 75, 75 for covering the pair of cutout portions 59B, 59B are provided on the cover member 70.

[0069] As shown in FIG. 14, the operating member 50B is on the base end portion 53 side of the operation plate portion 51, and a pair of cutout portions 59B, 59B extending along the extending direction X2 of the operation plate portion 51 are cut out on both side edges in the width direction Y2. A pair of projecting pieces 35a, 35a of the base member 30 are arranged so as to enter the pair of cutout portions 59B, 59B (see FIG. 17). Further, a pair of shaft portions 61, 61 projecting from the pair of flat surfaces 57b, 57b of the transmission wall portion 57 are in the shape of arc-shaped protrusions. In addition, a pair of shaft support portions 37, 37 provided on the base member 30 side are in the shape of arc-shaped grooves.

[0070] On the one hand, as shown in FIG. 15, the cover member 70 has a cover plate portion 71 that is substantially long plate-shaped and extends in a plate shape with a predetermined length so as to conform to the operation plate portion 51. From both side edges in the width direction of the cover plate portion 71, a pair of wall portions 75, 75 extending along the extending direction X2 of the cover plate portion 71 are erected toward the back side (toward the operation member 50B side). Further, on the base end portion 73 side in the extending direction X2 of the cover plate portion 71, a pair of locking protrusions 73a, 73a that lock to both sides in the width direction of the base end portion 53 of the operation plate portion 51 are formed. Note that the tip end portion side in the extending direction X2 of the cover plate portion 71 forms the operation portion 72. Further, on the base end portion 73 side of the cover plate portion 71 with respect to the operation portion 72, a locking frame portion 72a into which the tip end portion 52B of the operation plate portion 51 enters and locks (see FIG. 16) is provided.

[0071] Then, by inserting and locking the tip end portion 52B of the operation plate portion 51 into the locking frame portion 72a of the cover plate portion 71 and locking the locking protrusions 73a, 73a of the cover plate portion 71 to both sides in the width direction of the base end portion 53 of the operation plate portion 51, the cover member 70 is attached to the front side of the operation plate portion 51. As a result, as shown in FIG. 13, the pair of notch portions 59B, 59B formed in the operation plate portion 51 are covered by the pair of wall portions 75, 75 of the cover member 70. Note that, as shown in FIG. 17, the pair of notch portions 59B, 59B of the operation member 50B have the pair of protruding pieces 35a, 35a of the base member 30 inserted therein, and further, the pair of wall portions 75, 75 of the cover member 70 are arranged outside the pair of protruding pieces 35a, 35a.

[0072] According to this embodiment, the operation member 50B further has a cover member 70 disposed on the front side of the operation plate portion 51. Therefore, by changing the cover member 70, the design of the operation member 50B can be appropriately changed. Further, the cover member 70 is provided with wall portions 75, 75 that cover the pair of notch portions 59B, 59B formed in the operation plate portion 51. Therefore, as shown in FIG. 18, when the operation member 50B is rotated with respect to the base member 30, the pair of notch portions 59B, 59B can be hidden so as not to be visible, and the appearance can be improved.

[0073] (Third Embodiment of the Locking Device for an Opening / Closing Body) FIGS. 19 to 21 show a third embodiment of the locking device for an opening / closing body according to the present invention. Note that the same reference numerals are given to substantially the same parts as those in the above embodiment, and the description thereof is omitted.

[0074] In the locking device 10C for an opening / closing body of this embodiment (hereinafter simply referred to as "locking device 10C"), the shaft portion 61C is separate from the base member 30. Further, the operation member 50C has a cover member 70 disposed on the front side of the operation plate portion 51, similar to the second embodiment. Further, a pair of plate-like pieces 57c, 57c project from both sides of the transmission wall portion 57 of the operation member 50C that face each other in the circumferential direction. Note that these pair of plate-like pieces 57c, 57c also constitute the transmission wall portion 57. Further, circular hole-shaped shaft insertion holes 57d, 57d are formed in the pair of plate-like pieces 57c, 57c.

[0075] Then, as shown in FIG. 20, with the pair of plate-like pieces 57c, 57c of the operation member 50C disposed inside the pair of projecting pieces 35a, 35a of the base member 30, the shaft support portion 37 disposed on each projecting piece 35a and the shaft insertion hole 57d formed in each plate-like piece 57c, the shaft portion 61C is inserted through each of them. Thus, the operation member 50C is pivotally supported with respect to the base member 30 via the shaft portion 61C, the shaft support portion 37, and the shaft insertion hole 57d so as to be rotatable.

[0076] In this embodiment, when the operation part 72 is rotated to the maximum extent with respect to the base member 30, the operation load F1' is input from the stopper receiving part 41 to the stopper part 63, the operation load F1' is transmitted from the stopper part 63 to the transmission wall part 57, the operation load F1' travels along the semicircular part 57a of the transmission wall part 57 (see the arrow F2' in Fig. 21), is applied to the pair of plate-like pieces 57c, 57c, and as shown by the arrow F3 in Fig. 21, the pair of plate-like pieces 57c, 57c tend to be elastically deformed so as to expand in a direction away from each other. At this time, since the pair of restricting wall parts 35, 35 are arranged to face each other outside the pair of plate-like pieces 57c, 57c, it is possible to restrict the radial outward elastic deformation of the pair of plate-like pieces 57c, 57c with respect to the transmission wall part 57, and the breaking strength of the operation member 50C can be increased.

[0077] (Fourth Embodiment of the Locking Device for an Opening / Closing Body) Figs. 22 to 25 show a fourth embodiment of the locking device for an opening / closing body according to the present invention. Note that the same reference numerals are given to substantially the same parts as those in the above embodiment, and the description thereof is omitted.

[0078] The locking device 10D for an opening / closing body (hereinafter simply referred to as "locking device 10D") according to the fourth embodiment shown in Fig. 25 has a structure similar to that of the second embodiment, but is different in that a slit 62a is formed at a position adjacent to the shaft part 61D.

[0079] Specifically, as shown in Fig. 22, the pair of shaft parts 61D are arc-shaped protrusions integrally formed on the transmission wall part 57, and slits 62a are respectively formed at positions adjacent to each shaft part 61D. Further, as shown in Fig. 24, shaft support parts 37, 37 are integrally formed on the pair of deformation restricting wall parts 35, 35 of the base member 30. The slit 62a is composed of an arc-shaped part extending along the peripheral edge of the shaft part 61D on the tip side in the standing direction of the transmission wall part 57 and a part extending parallel to each other from the arc-shaped part toward the base end side in the standing direction of the transmission wall part 57. Through this slit 62a, the adjacent part 62 of the shaft part 61D (hereinafter also simply referred to as "shaft part adjacent part 62") can be elastically deformed inward and outward of the operation member 50D.

[0080] Further, inside the pair of shaft - adjacent portions 62, 62, there is an inward deflection restricting portion 77 that restricts the inward deflection deformation of the operation member 50D (here, the inward deflection deformation of the transmission wall portion 57). Here, as shown in FIG. 23, the inward deflection restricting portion 77 having a substantially trapezoidal frame shape inserted into the transmission wall portion 57 is erected from the back side of the cover member 70D, and by arranging this inward deflection restricting portion 77 inside the pair of shaft - adjacent portions 62, 62, the inward deflection deformation of the pair of shaft - adjacent portions 62, 62 in the transmission wall portion 57 is restricted. Note that, as the restriction on the inward deflection deformation of the pair of shaft - adjacent portions 62, 62 in the transmission wall portion 57, instead of the inward deflection restricting portion 77 as described above, a key cylinder 67 may also be used.

[0081] Also, the pair of wall portions 75, 75 of the cover member 70D are arranged outside the pair of shaft - adjacent portions 62, 62, and the outward deflection deformation of the pair of shaft - adjacent portions 62, 62 in the transmission wall portion 57 is restricted (see FIG. 25).

[0082] Note that, as the structure with this slit provided, in addition to the above - mentioned aspect, the following aspects (1) to (5) may also be possible.

[0083] That is, on the premise that the shaft portion is in a protruding shape and the shaft support portion is in a groove shape (the same as the above - mentioned structure), (1) a slit is formed at a position adjacent to the shaft portion, and a slit is also formed at a position adjacent to the shaft support portion, and both the slit - adjacent portion of the shaft portion and the slit - adjacent portion of the shaft support portion are made capable of deflecting and deforming; (2) no slit is formed at a position adjacent to the shaft portion, while a slit is formed at a position adjacent to the shaft support portion, and only the slit - adjacent portion of the shaft support portion is made capable of deflecting and deforming, etc. may be used.

[0084] Also, on the premise that the shaft portion is grooved and the shaft support portion is protruded, (3) a slit is formed at a position adjacent to the shaft portion, while no slit is formed at a position adjacent to the shaft support portion, and only the portion adjacent to the slit of the shaft portion is configured to be bendable and deformable, (4) a slit is formed at a position adjacent to the shaft portion, and a slit is also formed at a position adjacent to the shaft support portion, and both the portion adjacent to the slit of the shaft portion and the portion adjacent to the slit of the shaft support portion are configured to be bendable and deformable, (5) no slit is formed at a position adjacent to the shaft portion, while a slit is formed at a position adjacent to the shaft support portion, and only the portion adjacent to the slit of the shaft support portion is configured to be bendable and deformable, etc. may be adopted.

[0085] In this embodiment, the shaft portion 61D is integrally formed with the operation load transmission wall portion 57, and the shaft support portion 37 is integrally formed with the pair of deformation restricting wall portions 35, 35. However, the shaft support portion may be integrally formed with the operation load transmission wall portion, and the shaft portion may be integrally formed with the pair of deformation restricting wall portions.

[0086] Note that, with the structures of the above (1) to (5), when the portion adjacent to the slit of the shaft portion or the portion adjacent to the slit of the shaft support portion is configured to be bendable and deformable inward or outward of the operation member or the base member, an inward bending restricting portion or a key cylinder is disposed inside the portion adjacent to the slit of the shaft portion or the portion adjacent to the slit of the shaft support portion, and an outward bending restricting portion is disposed outside the portion adjacent to the slit of the shaft portion or the portion adjacent to the slit of the shaft support portion. That is, (a) a structure having only an inward bending restricting portion or a key cylinder (the fourth embodiment shown in FIGS. 22 to 25 has this structure), (b) a structure having only an outward bending restricting portion, (c) a structure having both an inward bending restricting portion or a key cylinder and an outward bending restricting portion.

[0087] And in this embodiment, as shown by the arrow F4 in FIG. 24, first, the operation member 50D is assembled to the base member 30. In this case, a pair of transmission wall portions 57, 57 are inserted inside a pair of regulation wall portions 35, 35. At this time, the tips of the pair of shaft portions 61D, 61D are pressed by the inner surfaces of the pair of regulation wall portions 35, 35, and the pair of portions adjacent to the shaft portions 62, 62 are inserted while being bent inward. Then, when the pair of shaft portions 61D, 61D reach the pair of shaft support portions 37, 37, the pair of portions adjacent to the shaft portions 62, 62 elastically return, and the pair of shaft portions 61D, 61D are inserted into the pair of shaft support portions 37, 37, and the operation member 50D is assembled to the base member 30.

[0088] Thereafter, as shown by the arrow F5 in FIG. 24, the cover member 70D is attached to the operation member 50D. That is, the tip portion 52B of the operation plate portion 51 is inserted into and locked to the locking frame portion 72a of the cover plate portion 71, and the locking protrusions 73a, 73a of the cover plate portion 71 are locked to both sides in the width direction of the base end portion 53 of the operation plate portion 51, so that the cover member 70D is attached to the front side of the operation plate portion 51. At this time, as shown in FIG. 25, the inward deflection restricting portions 77 provided on the cover member 70D are inserted and disposed inside the pair of portions adjacent to the shaft portions 62, 62, and the inward deflection deformation of the pair of portions adjacent to the shaft portions 62, 62, inward of the operation member 50D, that is, inward of the transmission wall portion 57, is restricted.

[0089] As described above, in this embodiment, slits are formed at positions adjacent to the shaft portions and / or the shaft support portions in the operation load transmission wall portion and / or the pair of deformation restricting wall portions. Through the slits, the portions adjacent to the shaft portions and / or the portions adjacent to the shaft support portions can be bent and deformed inward and outward of the operation member or the base member. (Here, a slit 62a is formed at a position adjacent to the shaft portion 61D, and through the slit 62a, the portion 62 adjacent to the shaft portion can be bent and deformed inward and outward of the transmission wall portion 57 of the operation member 50D), so that the assembling workability of the operation member 50 with respect to the base member 30 can be improved.

[0090] Also, an inward deflection restricting portion or a key cylinder that is disposed inside an adjacent portion of the shaft portion or the shaft support portion and restricts inward deflection deformation of the operation load transmission wall portion, and / or an outward deflection restricting portion that is disposed outside an adjacent portion of the shaft support portion or the shaft portion and restricts outward deflection deformation of a pair of deformation restricting wall portions are provided. Here, the inward deflection restricting portion 77 is disposed inside a pair of adjacent portions 62, 62 of the shaft portion. As a result, after the operation member 50D is assembled to the base member 30, it is possible to make it difficult to remove the operation member 50D from the base member 30. That is, since the deflection deformation of the slit adjacent portion of the shaft portion and the slit adjacent portion of the shaft support portion formed through the slit can be restricted by the inward deflection restricting portion or the key cylinder and the outward deflection restricting portion, it is possible to make it difficult to remove the operation member from the base member.

[0091] Note that the present invention is not limited to the above-described embodiments, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention.

Explanation of Signs

[0092] 1 Fixed body 1a Opening 1b, 1b Locking portion 2 Opening / closing body 10, 10B, 10C, 10D Locking device (locking device) of the opening / closing body 20 Locking member 25 Rotating member 27 Torsion spring 30 Base member 35 Deformation restricting wall portion 37 Shaft support portion 41 Stopper receiving portion 50, 50A, 50B, 50C, 50D Operation member 51 Operation plate portion 52 Operation portion 57, 68 Operation load transmission wall portion (transmission wall portion) 59B, 59B Notch portion 61, 61C, 61D Shaft portion 63 Stopper portion 67 key cylinder 70, 70D cover member 72 operation part 77 inward deflection restricting part

Claims

1. A locking device for an opening / closing body that is attachably / detachably mounted to an opening of a fixed body, comprising: a locking portion provided on one of the fixed body or the opening / closing body; a locking member disposed on the other of the fixed body or the opening / closing body and engaging with and disengaging from the locking portion; a base member fixed to the other of the fixed body or the opening / closing body; an operating member that is rotatably supported on the base member via a rotating portion and operates the locking member, wherein the rotating portion includes a shaft portion provided on one of the operating member or the base member and a shaft support portion provided on the other of the operating member or the base member and rotatably supporting the shaft portion; the operating member includes an operating plate portion extending in a plate shape, an operating portion provided at one end in the extending direction of the operating plate portion, an operating load transmission wall portion protruding from the back side of the operating plate portion, the shaft portion disposed so as to protrude outward from both sides of the operating load transmission wall portion or the shaft support portion disposed on the operating load transmission wall portion, and a stopper portion continuously provided on the operating load transmission wall portion on the operating portion side of the shaft portion or the shaft support portion; the base member includes a pair of deformation restricting wall portions disposed outside a portion of the operating load transmission wall portion where the shaft portion or the shaft support portion is provided, the shaft support portion disposed on the pair of deformation restricting wall portions or the shaft portion disposed so as to protrude from the pair of deformation restricting wall portions toward the operating load transmission wall portion, and a stopper receiving portion that enables the stopper portion to abut and restricts rotation of the operating member. A locking device for an opening / closing body, characterized by the above.

2. The locking device for an opening / closing body according to claim 1, wherein the operating load transmission wall portion has a cylindrical shape into which a key cylinder can be inserted.

3. A pair of notch portions are formed on both sides of the operating plate portion along the extending direction, into which the pair of deformation restricting wall portions enter. The locking device for an opening / closing body according to claim 1 or 2, wherein the operating member further includes a cover member disposed on the front side of the operating plate portion, and a wall portion covering the pair of notch portions is provided on the cover member.

4. The shaft portion or the shaft support portion is integrally formed with the operating load transmission wall portion. The shaft support portion or the shaft portion is integrally formed with the pair of deformation restricting wall portions. In the operation load transmission wall portion and / or the pair of deformation restricting wall portions, slits are formed at positions adjacent to the shaft portion and / or the shaft support portion, and through the slits, adjacent portions of the shaft portion and / or adjacent portions of the shaft support portion can be elastically deformed inwardly and outwardly of the operation member or the base member. The lock device for an opening / closing body according to claim 1 or 2, further comprising an inward deflection restricting portion or a key cylinder that is disposed inside an adjacent portion of the shaft portion or the shaft support portion and restricts inward elastic deformation of the operation load transmission wall portion, and / or an outward deflection restricting portion that is disposed outside an adjacent portion of the shaft support portion or the shaft portion and restricts outward elastic deformation of the pair of deformation restricting wall portions.

Images