JP2020060027A - Lock device for opening/closing body - Google Patents

Abstract

To provide a lock device for an opening/closing body which is excellent in space efficiency by simplifying a switching mechanism between a locked state and an unlocked state for regulating the movement of an operation member by a key cylinder, and which is improved in switching operability.SOLUTION: In a locking device which includes a housing 1, a rod 4A that slides in the protruding direction with respect to the housing and is switched between a locked position for keeping an opening/closing body closed with respect to an opening of a fixed main body and an unlocked position, an operating member 2 capable of switching the rod from the locked position to the unlocked position by a sliding movement against a biasing force, an operating member 3 interposed between the rod and the operating member, and a key cylinder 6 capable of restricting the movement of the operating member at the locked position of the rod, the key cylinder 6 is provided at its lower side with an integral cam 63 for rotation therewith, and switches the operation member 3 between a locked state in which the movement of the operation member 2 is regulated and an unlocked state in which the movement is permitted by disabling the movement by a stopper part 65 formed on the cam.SELECTED DRAWING: Figure 4

Description

  INDUSTRIAL APPLICABILITY The present invention relates to an opening / closing body suitable for a configuration in which a lock device for engaging and disengaging the opening / closing body with a fixed body is switched between a locked state in which movement of an operating member is restricted by a key cylinder and an unlocked state in which movement of the operating member is allowed. Locking device.

  14 and 15 show the lock device disclosed in Patent Document 1, FIG. 14 (a) shows the relationship between the lock device and the opening / closing body, and the fixed body, and FIG. 14 (b) is a view of the lock device seen from the front side. 15 (a) is an exploded view of the lock device, and FIG. 15 (b) is a view of the lock device seen from the back side. The lock device 10 shown in the figure is used when the opening / closing body 7 is engaged with and disengaged from the fixed body 1, and is opened / closed with respect to the housing 20 and the opening 2 of the fixed body by sliding in the retracting direction. Rods 70 and 80 that can be switched between a locking position and a locking release position for maintaining the closed state of the rod, and an operating member that can switch the rods 70 and 80 from the locking position to the locking release position by sliding against the biasing force. 40, the first rotor 50 and the second rotor 60, which are operating members interposed between the rods 70 and 80, and the operating member 40, and the movement of the operating member 40 at the locking positions of the rods 70 and 80. It is provided with a key cylinder 90 and a stopper 95 that enable it.

  Further, the first rotor 50 and the second rotor 60 are pivotally supported by the rotation shaft 33 of the housing 20 so that the corresponding rods 70 and 80 are moved in the direction in which they are projected from the housing 20 by the biasing force of the coil spring 15. To The key cylinder 90 has a rotating body 92 that is rotated by a rotating operation of a key (not shown), and a key protrusion 93 (not shown) that projects from the back side of the rotating body 92. Further, the stopper 95 has a base portion 96 with a moving hole 96a and a protruding piece 97. Then, the protrusion 97 moves laterally within the stopper insertion hole 23a provided in the cylinder placement portion 23 of the housing by the key projection 93 on the key cylinder side moving in the movement hole 96a by a key operation. The protrusion 97 covers the rear opening of the guide cylinder 31 and restricts the guide boss 47 of the operation member 40 from being pushed in. Pushing back is released by returning the key to the opposite side.

JP, 2015-158115, A

  In the lock device, the key cylinder is switched from the unlocked state to the locked state in which the stopper is moved to the guide boss side of the operating member to restrict the movement of the operating member when the rotating body is rotated by the key operation. In such a structure, a space for laterally moving the stopper is required, which makes it difficult to reduce the size. Further, since the operating member is composed of two rotors interposed between the rod and the operating member, it is complicated and it is easy to make it compact. Further, as the key cylinder, for example, it is not easy to use because it is not possible to perceive sensibly whether the rotating body is rotated and the stopper is moved to the regulation position.

  An object of the present invention is to solve the above problems and to simplify the switching structure between the locked state in which the movement of the operating member is restricted by the key cylinder and the unlocked state in which the operation is allowed, and to be excellent in space efficiency. To In addition, usability is improved by intuitively recognizing the completion of switching between the locked state and the unlocked state of the key cylinder. Other purposes will be made clear in the following description.

  In order to achieve the above-mentioned object, the present invention is specified with reference to the drawings, and is used when engaging an opening / closing body with a fixed main body, and sliding the housing 1 and the housing in the retracted direction to fix the fixed body. A rod (4A and / or 4B) that can be switched between a locking position and a locking release position for maintaining the closed state of the opening / closing body with respect to the opening of the main body and the rod by sliding from the locking position against the biasing force. An operating member 2 that can be switched to a stop release position, an operating member 3 interposed between the rod and the operating member, and a key cylinder 6 that can regulate the movement of the operating member at the locking position of the rod. In the lock device including the above, the key cylinder has a cam 63 provided on the lower side (the side opposite to the key hole) and integrally rotated, and the operation is performed by a stopper portion 65 formed on the cam. No moving parts It is characterized by a locking state for restricting the movement of the operating member, to switch to the unlock state to permit movement of the operating member.

  Here, the "opening / closing body" and the "fixed body" include, for example, various casings in which the opening of the fixed body is opened / closed or covered by the lids when the opening / closing body is a lid, and the opening / closing body is referred to as a reference. In the case of one glove box, the fixed body is various panels in which the glove box is arranged. The above points are the same as the idea of Patent Document 1. It should be noted that the opening / closing body may be one that moves regularly with respect to the fixed body.

The present invention described above is more preferably embodied as specified in claims 2 to 7.
(1) The cam 63 forms a flexible claw 67a together with the stopper portion 65, and when the key cylinder 6 is rotationally operated at the rod locking position, the stopper portion causes the operating member 3 to move. The lock state is switched by engaging the engaged portion 38 provided on the housing, and at the time of the switching, the flexible claw is slidably brought into contact with the uneven portion 18b provided on the housing with a feeling of moderation. (Claim 2). In addition, the said uneven | corrugated part is non-planar in principle, and it is used in a broad sense including the shape of an uneven | corrugated cross section, a wavy cross section, a sawtooth cross section, etc. concretely. Further, the moderation is a click sound generated by the flexible claw slidingly contacting the concavo-convex portion, or a feeling recognized by the click sound.
(2) The cam 63 is detachably attached to the key cylinder 6 (claim 3). The cam according to the first aspect includes a structure integrally formed with the key cylinder and a structure retrofitted to the key cylinder as in the embodiment.

(3) The cam 63 has two stopper portions 65, and when one stopper portion engages with the engaged portion 38, the other stopper portion abuts on the housing. It is configured to come into contact with the surface 17d to regulate rotation (claim 4).
(4) The cam 63 has a leg piece 68 protruding from the lower surface, and the leg piece is fitted in the guide groove 18a provided in the housing so as to be prevented from coming off and rotatable by a predetermined angle. (Claim 5).

(5) The key cylinder 6 is switched between a locked state in which the stopper portion 65 is engaged with the engaged portion 38 and an unlocked state in which the stopper portion is separated from the engaged portion by a predetermined angle. The concavo-convex portion 18b is provided at two locations on the housing, and the flexible claw 67a slides on one of the concavo-convex portions immediately before the key cylinder is rotated to reach the locked state, and the unlocked state. Just before reaching (1) to (3), it is slidably contacted with the other of the concavo-convex portions so as to have a moderation feeling (claim 6).
(6) The actuating member 3 is formed by a main vertical plate 30 forming a guide groove (35 and / or 36) for controlling the movement of the rod, and a spring member S1 integrated with the main vertical plate. It has a horizontal plate 31 which is biased in the ascending direction, and the engaged portion 38 is projectingly provided on the main vertical plate (claim 7).

  According to the first aspect of the present invention, the key cylinder has a cam that is integrally rotated, and the operation member is made immovable by a stopper portion formed on the cam so that the movement of the operation member is restricted. Switch to the unlocked state that allows the movement of. Therefore, as the stopper portion, the arrangement space is suppressed to the outer diameter of the key cylinder as compared with the stopper of Document 1, space efficiency is improved and it is easy to make compact, and the cam forming the stopper portion is formed by the key cylinder. Since it is rotated integrally with the switch, it is simple and the switching operation can be stably maintained.

  In the invention of claim 2, the cam has the flexible claw together with the stopper portion, and when the key cylinder is rotated at the rod locking position, the stopper portion engages with the engaged portion of the operating member. It is possible to switch to a locked state in which the movement of the operation member is restricted. At that time, since the flexible claws are brought into sliding contact with the concave-convex portion of the housing to give a feeling of moderation, the operator can detect the completion of the switching, and the usability can be improved and a high-grade feeling can be obtained.

  In the invention of claim 3, the cam is retrofitted to the key cylinder. As an advantage of this, as in the embodiment, the cam is made of a resin molded body and leg pieces are added to enable stable placement in the housing, and it is easy to add the flexible claw of claim 2. Further, when the rotation direction of the key cylinder is reversed, it is apparent from the comparison between the configurations of FIGS. 1 to 9 and the modified examples of FIGS. You can deal with it just by changing it.

  In the invention of claim 4, for example, when one stopper portion engages with the engaged portion, the other stopper portion abuts the abutment surface of the housing to regulate the rotation, so that a favorable switching operation is ensured. Can be obtained.

  According to the invention of claim 5, the cam has the leg pieces, and the leg pieces are fitted into the guide groove of the housing so as to be capable of being prevented from coming off and being rotatable by a predetermined angle. Therefore, the key cylinder is stable with respect to the housing. It is held, and good rotation operation can be maintained more reliably.

  According to the sixth aspect of the present invention, the uneven portions are provided at two positions of the housing, and the flexible claw that slidably contacts one of the uneven portions immediately before the key cylinder is rotationally operated to reach the locked state is accompanied by a moderation feeling, and A flexible claw that slides in contact with the other concave and convex portion immediately before reaching the unlocked state also provides a moderation feeling. Therefore, each moderation feeling improves usability and a high-class feeling is also obtained.

  In the invention of claim 7, the operating member is simpler and more compact than the rotor structure of Patent Document 1. Further, it is possible to provide a simple structure in which the actuating member is provided with the engaged portion on the main vertical plate and the movement is restricted by the stopper portion of the cam.

(A) is a schematic diagram showing the locking device of the present invention in a mode in which the opening / closing body is locked to the fixed body, and (b) is a mode in which the locking is released to switch the opening / closing body to the open state. It is a schematic diagram. 1A is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 1B is an enlarged sectional view taken along the line BB of FIG. As a configuration of the lock device, (a) is a view showing a state in which an X portion in FIG. 1 is enlarged, a button cover is omitted, and a key cylinder is separately attached, and (b) is a C-C of (a). A schematic line sectional view, (c) is a DD line schematic sectional view of (a). As a configuration of the locking device, (a) is a diagram showing a state in which the unlocked state of FIG. 1 (a) is switched to a locked state and a cover of a button which is an operation member is omitted, and (b) of (a). C1-C1 line schematic sectional view, (c) is a D1-D1 line schematic sectional view of (a). It is a schematic disassembled perspective view which shows the structural member of the said locking device. (A) is a top view showing a single housing of the lock device, and (b) is an enlarged view of a peripheral portion of a cam receiving surface of the housing. It is explanatory drawing which shows the mechanism member for interlocking each rod of the said locking device. The key cylinder structure of the said locking device is shown, (a) is the exploded view which separated the main body and the cam, (b) is the figure which connected the main body and the cam. FIG. 4A is a top view of the cam of the key cylinder, FIG. 6B is a view from the X direction of FIG. 7A, and FIG. 7C is a view from the Z direction of FIG. The modification of the said locking device is shown, (a) is a figure shown in the aspect which only the cam was attached to the key cylinder arrangement | positioning part with respect to FIG. 1 (a), (b) is an A1-A1 line expanded sectional view of (a). is there. (A) is a figure which shows the mode which switched the lock device of FIG. 10 to the lock state, (b) is an A2-A2 line expanded sectional view of (a). (A) is a figure which shows the housing which comprises the locking device of the said modification by contrast with FIG. 6, (b) is an enlarged view of the cam receiving surface periphery of a housing. It is a figure which shows the key cylinder of the said modification by contrast with FIG.8 (a). The lock device of patent document 1 is shown, (a) and (b) has shown FIG. 1 and FIG. 9 of the same document. 7A and 7B of Patent Document 1 are shown in FIGS.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In this description, the structure, operation, and modification of the lock device will be described in this order.

(Structure of Lock Device) As shown in FIGS. 1 to 9, the lock device 9 according to the embodiment is used when the opening / closing body is engaged with and disengaged from the fixed body, and includes a substantially container-shaped housing 1 and a housing 1. On the other hand, the rods 4A and 4B (4) which are slidable in the retracted direction and which can be switched between the locking position and the unlocking position for maintaining the closed state of the opening / closing body with respect to the opening of the fixed body, and the rods 4A and 4B from the locking position. A button 2, which is an operation member that can be switched to the unlocked position by sliding against the urging force of the spring member S1, a link 3, which is an operating member interposed between the rods 4A, 4B and the button 2, and a link. 3, a slider 5 interposed between the rod 3 and the rod 4B, a spring member S2 interposed between the housing 1 and the rod 4A, a base 55 supporting the rod 4B, and a spring member interposed between the rod 4B and the base 55. S3, Head 4A, the key cylinder 6 that allows regulating the movement of the button 2 in the locked position of 4B, and a cover 7 for covering the gap between the key cylinder 6 is attached to the housing 1.

  First, in FIG. 1, FIG. 10 and FIG. 11, reference numeral 80 is a mounting portion on the fixed main body side. The attachment portion 80 has, for example, locking holes 81 that are provided at both edges of the fixed body sandwiching the opening of the fixed body and that engages and disengages with the tip end portion 41 of the rod 4A, and disengages with the tip end portion 44 of the rod 4B. Locking hole 81 is provided. Among the components of the lock device 9, the housing 1, the button 2, the link 3, the rod 4, the slider 5, the cover 7, the base 55, the cam 63, etc. are made of resin, and the main body 60 of the key cylinder 6 and the spring member. S1 to S3 are made of metal. However, the material of each member is not limited.

  As shown in FIGS. 5 to 7, the housing 1 has a substantially container shape in which the whole is laterally or laterally long, and a button arrangement portion 10 and a key cylinder arrangement portion 15 are formed in left and right sections. Further, on the outside of the button arranging portion 10, a rod introducing portion 14 for inserting the proximal end side of the rod 4A into the button arranging portion 10 is provided in parallel with the mounting portion 1a. On the outer wall of the key cylinder arranging portion 15, a mounting portion 1a, a rod introducing portion 19 into which the base end 42 of the rod 4B is inserted, and a slider introducing portion 19a into which the slider 5 connected to the base end 42 by a shaft 49 is inserted. And are installed side by side. Each of the introduction parts 14, 19 and 19a defines a tunnel-shaped introduction hole. The introduction holes of the introduction portion 14 and the introduction portion 19 are slightly displaced from the coaxial line. The introduction portion 19a is arranged next to the introduction portion 19, that is, in the width direction. Further, in the introduction portion 19a, a part of the outer wall is opened like a window 10b to expose the introduction hole. Further, in this structure, a guide groove (not shown) slidably fitted to the shaft 49 is provided in the boundary wall parting the introduction part 19 and the introduction part 19a by utilizing the opening 10b.

  The button arranging portion 10 and the key cylinder arranging portion 15 communicate with each other on the upper side. The button placement portion 10 has a space 11 for accommodating the damper 8 and a fitting hole 10a (see FIG. 5) provided in an outer wall partitioning the space 11 for fitting the damper 8 from the outside, and a link 3 Groove 13 for slidably accommodating the main vertical plate 30, and left and right slidably accommodating later-described leg pieces 23 on both sides of the button support 30 and the central support 22 and guide pieces 25a, 25b. 12a, the cylindrical portion 12 and the hole portion 11a, the locking claws 12b projecting in each space 12, and the groove portion that is slidably received at the base end side of the rod 4A by being connected to the hole of the rod introduction portion 14. 14a and a spring support shaft 14b provided in the groove 14a are provided. Of these, the groove portion 13 is composed of lateral grooves 13a, 13b, and 13c that linearly extend from the rod introduction portion 14 side to the key cylinder placement portion 15, and a vertical groove 13d that extends vertically or in the width direction from the intermediate portion of the lateral groove 13b. . The lateral groove 13c is provided with a relief groove 13e which is cut from approximately the middle in the vertical or width direction. The lateral grooves 13a and 13c and the escape groove 13e are formed so as to penetrate therethrough. Further, a lateral groove 10e and a lateral groove 10d are formed so as to penetrate through the outer wall partitioning the groove portion 13 on the coaxial line with a space therebetween. The lateral groove 10d is provided in the recess 10c of the outer wall. Then, the corresponding end side of the slider main body 50 that is inserted from the introduction hole of the introduction portion 19a is accommodated in the recess 10c.

  The key cylinder arranging portion 15 includes an upper step portion 16, an inner step portion 17 having a substantially cylindrical shape in which a central portion of the upper step portion 16 is deeply recessed, and left and right portions of the inner step portion 17 and provided on the left and right sides of the cover 7. Hole 17a for receiving the locking piece 74 of the above, a locking claw 17b projectingly provided in the hole 17a, projections 17c and 17j provided on the inner peripheral surface of the inner step portion 17, and both circumferential ends of the projection 17c. The contact surfaces 17d and 17e, which are the surfaces, the contact surface 17k, which is the end surface of the protrusion 17j, which is a clockwise end face in the circumferential direction, and the protrusion 17c, are spaced apart from each other and are provided on the upper surface similarly to the protrusion 17c. 17f and 17g for receiving the main body 60 of the main body 60, a cam receiving surface 18 in which the bottom center portion of the inner step portion 17 is shallowly recessed, and a pair of cam fitting holes formed through the cam receiving surface 18 in an arc shape. 18a and the bottom surface of the inner step portion 17 A concave-convex portion 18b of the two positions is a both ends of the sliding surface 18c and the sliding contact surface 18c a portion arcuate which is slightly shallower along the outer periphery of the cam receiving surface 18 is provided.

  As shown in FIGS. 5 and 7, the button 2 includes a support body 20 which is arranged vertically or vertically with respect to the button arrangement portion 10, and a cover which is attached to the support body 20 and covers the upper side of the support body. . The support body 20 includes a flat plate portion 21, a support column 22 projectingly provided in the center of the lower surface of the flat plate portion 21 and inserted into the tubular portion 12 with a margin, and a guide groove 24 provided on both sides of the flat plate portion 21. A pair of leg pieces 23, 23 that are partitioned and inserted into the corresponding space 12a, guide piece portions 25a, 25b that project from the left corner of the flat plate portion 21 and are inserted into the hole portion 11a, and the flat plate portion 21 of the flat plate portion 21. A wall portion 25c protruding from the lower surface and substantially continuous with the piece portion 25a, a saw-like rack 26 provided on an end surface of the wall portion 25c, and locking claws 27 provided on both end surfaces of the flat plate portion 21. And have.

  The cover 28 has a rectangular shape that is large enough to cover the flat plate portion 21, and has pieces 29 that project from both sides of the lower surface and form engagement holes 29a. Then, the cover 28 is attached to the support body 20 by the engagement between the engagement holes 29 a and the locking claws 27. The button 2 is assembled after the link 3 and the spring member S1 are arranged with respect to the housing 1 with the cover 28 attached to the support body 20. In that case, in the button 2, the tabs 25a and 25b are fitted to the corresponding portions of the hole 11a, and the locking claws 12b are inserted into the guide grooves 24 with the leg pieces 23 inserted into the corresponding spaces 12a. Mating. As a result, the button 2 is slidably assembled with respect to the housing 1 by the length of the guide groove 24, and is prevented from coming off by the locking claw 12b fitted in the guide groove 24.

  Further, in this structure, the damper 8 is engaged with the rack 26 in the space 11 in a state where the damper 8 is mounted in the fitting hole 10a. That is, the damper 8 has a main body 8a, a gear 8b, a locking piece 8c, and the like, and is attached to the fitting hole 10a via the locking piece 8c. The damper 8 is composed of a well-known rotary oil damper or the like, and the gear 8b is mounted on an output shaft (not shown) which receives the resistance of the hydraulic oil. In the attached state, the gear 8 a meshes with the rack 26 provided on the support 20. Then, the damper 8 is pushed to the housing bottom surface side together with the link 3 against the urging force of the spring member S1, or the damper 8 is released to the upper side of the housing by the accumulated urging force. In the process of moving, the link 3 is slid gently.

  The link 3 is slidably fitted in the groove 13. More specifically, the link 3 includes a main vertical plate 30 that fits into the lateral grooves 13a, 13b, 13c and the escape groove 13e, a horizontal plate 31 connected to an upper end surface portion of the main vertical plate 30, and a horizontal plate 31 below the horizontal plate 31. The auxiliary vertical plate 32 is provided and fits in the groove portion 13d. In the main vertical plate 30, engaged portions 34 and 33 provided at the left and right ends and fitted to corresponding portions of the lateral grooves 13a and 13c, and C-shaped guide grooves 35 and 36 operatively connected to the rods 4A and 4B. Is provided. In addition, as shown in FIG. 3C, the main vertical plate 30 is provided with a vertical rib 37 extending vertically and an engaged portion 38 projecting below the vertical rib 37. ing. On the other hand, the horizontal plate 31 is provided with a through hole 31a for inserting a pillar.

  The rod 4 includes rods 4A and 4B having different shapes. That is, the rod 4A is formed to be shorter than the rod 4B, and has the shaft hole 40a provided in the base end 40 and the tip portion 41 that engages with and disengages from the engaging hole 80a on the mounting portion side. On the other hand, the rod 4B has a distal end portion 44 that engages with and disengages from the shaft hole 42a provided at the base end 42 and the engaging hole 80a on the mounting portion side as shown in FIG. 5, and the base end 42 and the distal end portion 44. There is a restricting collar 45 provided on the rod portion 43 between and a hooking piece 46 provided on the tip side of the regulating flange 45.

  With respect to the housing 1 of the above rod 4A, the base end 40 is inserted into the groove portion 14a from the introduction hole of the rod introduction portion 14. At that time, the rod 4A fits the corresponding end side of the spring member S2 inserted into and supported by the support shaft 14b into the concave portion or the convex portion provided on the end face of the base end 40, and in that state, the shaft 47 is main than the lateral groove 10e. It can slide along the guide groove 35 by engaging with the guide groove 35 of the vertical plate and further with the shaft hole 40a, and by fitting it into a guide groove (not shown) provided between the cylindrical portion 12 and the space 12a. It can be assembled. That is, in this structure, the rod 4A is slid in the direction projecting from the inside of the housing 1 by the urging force of the spring member S1, and the button 2 resists the urging force of the link-side main vertical plate 30 and the spring member S1. When pushed, the shaft 47 moves in the lateral groove 10e from the rod introducing portion 14 side to the lateral groove 10d side by the guiding action of the guide groove 35, and moves the rod 4A in the direction to be recessed in the housing 1.

  On the other hand, the rod 4B has a slider 5 connected to the base end 40 by a shaft 49, a base 55 and a spring member S3 for urging the slider 5 in a direction projecting from the housing 1. The slider 5 includes a main body 50, a shaft hole 53 provided at one end of the main body 50, a thick portion 51 integrated at the other end of the main body 50, and a shaft hole 54 provided at the thick portion 51. And a thin portion 52 extending flush with the outer surface of the thick portion 51. With respect to the housing 1, the base end 42 of the rod 4B is inserted into the introduction hole of the rod introduction portion 19, and the slider 5 is inserted into the recess 10c from the introduction hole of the rod introduction portion 19a. The slider 5 is assembled in a state in which the shaft 48 is fitted from the shaft hole 53 into the lateral groove 10d, the guide groove 36 of the main vertical plate, and the guide groove (not shown) in the key cylinder placement portion 15. Further, in the slider 5 and the rod 4B, the shaft 49 passes through the above-mentioned guide groove (not shown) from the shaft hole 54 and is fitted into the shaft hole 42a of the rod, and further into a guide groove (not shown) provided in the back. Are integrally slidably connected by.

  The base 55 includes a support portion 56 and left and right mounting portions 57, 57. The support portion 56 is provided with a through hole 58 through which the tip side of the rod 4B is inserted to the left and right, a shaft portion 59 for supporting the spring member S3, and a hook portion 59a. Then, as shown in FIG. 1, the rod 4B is inserted into the through hole 58 at the tip end side, and is urged in the projecting direction by the biasing force of the spring member S3. That is, the spring member S3 is a torsion spring or a torsion coil, and in a state of being supported by the shaft portion 59, one end a is locked by the hooking portion 59a provided on the support portion 56, and the other end b is fixed by the rod. It is locked to the provided hooking piece 46. In this structure, when the rod 4B is moved in the direction in which the rod 4B is retracted into the housing 1 via the button 2 and the link 3, the spring member S3 accumulates an urging force, and when the pressure on the button 2 is released, the rod 4B is released. 4B is moved in the direction of protruding from the inside of the housing 1 by the accumulated biasing force.

  On the other hand, the key cylinder 6 includes a main body 60 having a key hole 61 formed in the upper end surface thereof, and a cam 63 provided below the main body 60 and integrally rotated. Although the main body 60 is schematically illustrated by omitting details, it is well known in the patent document 1 and the like except for the cam 63 and the connecting structure with the cam 63, that is, the configuration of the convex portion 62 projecting from the lower end surface of the main body 60. Same as the rotating body of the key cylinder. The main body 60 as described above is fitted to the substantially cylindrical inner step portion 17 of the key cylinder placement portion 15 in a state where the cam 63 is connected, and is prevented from coming off via the cover 7 and the like. In this case, the main body 60 has an arc-shaped projection piece (not shown) that projects to the lower side, and the projection piece is operated by the load of the built-in spring by key operation. Therefore, the inner peripheral wall portion of the inner step portion 17 that is in pressure contact with the projecting piece is formed as a rigid body portion.

  The cam 63 includes a disc portion 64, two stoppers 65 and 65 and a single swinging piece 67 that project around the disc portion 64 and face each other, and a convex portion 62 of the main body provided on the upper surface. The engaging recess 66 and the pair of leg pieces 68 projectingly provided on the lower surface are integrally formed. The disk portion 64 is formed to have substantially the same diameter as the outer diameter of the lower side of the main body 60. Each stopper 65 has a substantially rectangular shape having a size capable of receiving the engaged portion 38 of the link, and one stopper portion 65 is engaged with the lower surface of the engaged portion 38 as shown in FIG. 4C. When fitted together, the other stopper portion 65 abuts against the abutment surface 17d in the counterclockwise direction of the protrusion 17c provided on the inner stepped portion 17 as shown in FIG. The contact surface 17d has a small protrusion protruding toward the inner side, and the stopper portion 65 contacts the protrusion.

  The swinging piece 67 is provided between the stoppers 65, is thinner than the stopper 65, and is elastically displaceable, and has a flexible claw 67a protruding toward the lower end side of the lower surface. That is, the key cylinder 6 is in a locked state in which the stopper portion 65 is engaged with the engaged portion 38 as shown in FIG. 4 (in this state, one stopper portion 65 abuts the abutment surface 17d and the other stopper portion 65 is abutted). When the protrusion 17f comes into contact with the abutment surface 17k to be prevented from rotating, the stopper portion 65 is unlocked from the engaged portion 38 by a predetermined angle as shown in FIG. 3 (in this case, one stopper portion 65). Is stopped by contacting the contact surface 17e). At that time, the flexible claw 67a slides along one of the uneven portions 18b provided on the step 18c immediately before the key cylinder 6 is rotated by a key operation to reach the locked state. Further, the flexible claw 37a slides along the other side of the uneven portion 18b immediately before reaching the unlocked state. As a result, in this structure, a click sound is generated when the flexible claw 67a is brought into sliding contact with the concave-convex portion 18b, which improves the usability due to a moderation feeling.

  The cam 63 alone or in the form of the key cylinder 6 connected to the main body 60 can prevent each leg piece 68 from slipping out into the corresponding guide groove 18a provided on the cam receiving surface 18, and has a predetermined angle, that is, 90 in this example. It is fitted so that it can rotate only once. For this reason, in this structure, the cam 63 and the key cylinder 6 are stably held with respect to the housing 1, and good pivoting operation is maintained. Further, in this structure, the key cylinder arranging portion 15 is assembled with the key cylinder 6 and the cover 7. The cover 7 is a member that is attached to the key cylinder arranging portion 15 as shown in FIG. 1 and covers between the upper step portion 16 and the main body 60 invisible. In this example, a circular hole 71 into which the main body 10 is inserted is formed on the upper surface, and there are pieces 74 protruding on both sides to form engaging holes 74a. Then, in the cover 7, for example, from the state in which the key cylinder 6 is positioned on the cam receiving surface 18 together with the inside step portion 17 to the upper step portion 16 side, the engaging holes 74a are provided to the corresponding locking claws 17b. It is attached by engaging.

  In FIG. 5, reference numeral 75 indicates a cover similar to the cover 7. That is, the cover 75 lacks the circular hole 71 as compared with the cover 7, but is otherwise the same. Such a cover 75 is used as a locking device in a structure in which, for example, the key cylinder 6 is omitted.

(Operation) The main operation characteristics of the lock device 9 manufactured as described above will be described below.
(1), FIG. 1, FIG. 2 and FIG. 3 show that in the lock device 9 described above, the key cylinder 6 is in the unlocked state allowing the operation of the button 2, and the opening / closing body covers the opening of the fixed main body. It shows the closed state of the body. In this closed state, the button 2 and the link 3 are lifted by the urging force of the spring member S1 to cover the button placement portion 10 with the button 2. Of the rod 4, the rod 4A is slid in a direction projecting from the housing 1 by the urging force of the spring member S2, and the tip portion 41 is engaged with the locking hole 81 of the fixed body side mounting portion 80. The rod 4B is slid in a direction projecting from the housing 1 by the urging force of the spring member S3, and the tip portion 44 is engaged with the locking hole 81 of the fixed main body side mounting portion 80.

(2), FIG. 1 (b) shows an operation of switching the opening / closing body from the closed state in which the opening of the fixed body is closed to the open state in which the opening is opened. That is, in this case, the operator presses the button 2 with the finger F, for example, against the biasing force of the spring member S1. Then, in this structure, the link 3 is pushed down in the direction of the inner bottom surface of the housing 1 together with the button 2, and in conjunction with this, the rods 4A and 4B are actuated by the guide grooves 35 and 36 of the link 3 and the shafts 47 and 48 to act as springs. The members S2, S3 move in the retracting direction in the housing 1 against the biasing force, and the tip portions 41, 44 are disengaged from the corresponding locking holes 81. Therefore, the operator can rotate the opening / closing body in the fully opening direction from the state of FIG.

(3) By the way, in this structure, when the pressure on the button 2 is released, the link 3 and the button 2 are raised to the original state by the urging force of the spring member S1. Then, in this ascending process, the moving speed of the button 2 is braked by the damper 8 (meshing of the rack 26 of the link and the gear 8b) and moves slowly, so that operability is excellent and a high-grade feeling is obtained. Of course, the braking by the damper 8 also works when the link 3 and the button 2 are pressed against the biasing force of the spring member S1.

(4) When the opening / closing body is changed from the open state to the closed state again, normally, even when the rods 4A and 4B project from the inside of the housing 1, the rod tip portions 41 and 44 have the attachment portions 80 of the fixed main body. Or, due to the stress received when sliding while hitting the mounting portion of the opening / closing body, the rods 4A, 4B move in the housing 1 against the urging force of the spring members S2, S3 in the retracting direction and the corresponding locking holes 81 are formed. It can be engaged again.

(5), FIG. 4 shows the lock device 9 in which the key cylinder 6 is rotated by 90 degrees by a key operation to switch from the unlocked state to the locked state to restrict the pressing operation of the button 2. In this structure, in the unlocked state of the key cylinder 6 in FIG. 3, the key cylinder 6 is prevented from rotating with one of the two stopper portions 65 in contact with the contact surface 17e, and the flexible claw 67a is prevented. The two uneven portions 18b are fitted into the uneven portion 18b on the side closer to the protrusion 17j.

  In this structure, the flexible claw 67a slides along the uneven portion 18b on the side closer to the protrusion 17f immediately before the key cylinder 6 is rotated in the clockwise direction by the key operation to reach the locked state. Along with the sound, one stopper portion, that is, the stopper portion 65 on the side closer to the swing piece 67 hits the contact surface 17d to prevent rotation. At the same time, the stopper portion 65 on the side largely separated from the swing piece 67 of FIG. 4C engages with the lower surface of the engaged portion 38. As a result, the engaged portion 38 of the link 3 and the button 2 is restricted by the stopper portion 65, and thus the link 3 and the button 2 are lowered, that is, cannot be moved. When the flexible claw 37a is switched from the locked state to the unlocked state, the flexible claw 37a slides along the uneven portion 18b on the side closer to the protrusion 17j immediately before reaching the unlocked state. The usability can be improved.

(Modification) FIG. 10 is a diagram corresponding to FIG. 1A, FIG. 11 is a diagram in which the unlocked state of FIG. 10 is switched to the locked state, FIG. 12 is a diagram corresponding to FIG. 6, and FIG. It is a figure corresponding to a). This modified example is an example suitable for rotating the key cylinder 6 by a key operation to bring it into a locked state or to switch to an unlocked state when the key cylinder 6 is rotated in the opposite direction of the key operation. In this description, the same members and parts as those in the above-described embodiment are designated by the same reference numerals, duplicate description is omitted, and only the changed points will be described in detail.

  First, in the housing 1, the shape of the key cylinder arrangement portion 15 is changed as follows. As can be seen from the comparison between FIG. 6 and FIG. 12, the key cylinder arranging portion 15 of the modified example is in the state of left-right reversal of that of the embodiment. That is, the disposing portion 15 is provided on the upper step portion 16, the substantially cylindrical inner step portion 17 in which the central portion of the upper step portion 16 is deeply recessed, and the left and right sides of the inner step portion 17 so as to cover each part of the cover. It has a hole 17a for receiving the stop piece 74, a locking claw 17b projectingly provided in the hole 17a, and stopper projections 17c, 17j projectingly provided on the inner peripheral surface of the inner step portion 17, and also has a projection part. The stopper contact surfaces 17d and 17e, which are both end surfaces in the circumferential direction of 17c, the stopper contact surface 17k, which is the counterclockwise end surface in the circumferential direction of the protrusion 17j, and the protrusion 17c are provided with a space therebetween. Similarly to the protrusion 17c, the protrusions 17f and 17g for receiving the main body 60 of the key cylinder on the upper surface, the cam receiving surface 18 in which the bottom center portion of the inner step portion 17 is shallowly recessed, and the cam receiving surface 18 penetrating in an arc shape. For a pair of formed cams The contact hole 18a and the sliding contact surface 18c in an arc shape formed on the bottom surface of the inner step portion 17 along the outer periphery of the cam receiving surface 18 to be slightly shallow, and two concavities and convexities at both ends of the sliding contact surface 18c. And a portion 18b.

  The key cylinder 6 of the modified example has the same main body 60 as that of the embodiment, and the shape of the cam 65 is laterally reversed. That is, in the cam 63 of FIG. 9, of the two stopper portions 65, the stopper portion 65 on the side closer to the elastic piece 67 is positioned clockwise. On the other hand, in the cam 63 of FIG. 13, of the two stopper portions 65, the stopper portion 65 closer to the elastic piece 67 is located in the counterclockwise direction.

  With the above modification, in this modification, for example, the flexible claw 67a is moved immediately before the key cylinder 6 is rotated counterclockwise by the key operation from the unlocked state of FIG. 10 to the locked state of FIG. Since the sliding contact is made along the concave-convex portion 18b on the side closer to the protrusion 17f, a click sound is generated, and one stopper portion, that is, the stopper portion 65 on the side closer to the swing piece 67 hits the contact surface 17d to prevent rotation. At the same time, the stopper portion 65 on the side largely separated from the swing piece 67 of FIG. 10B engages with the lower surface of the engaged portion 38. As a result, the engaged portion 38 of the link 3 and the button 2 is restricted by the stopper portion 65 so that the link 3 and the button 2 cannot descend or move.

  The lock device according to the present invention only needs to have the configuration specified in claim 1, and the details can be changed or expanded with reference to the above description. For example, the cam may be formed integrally with the key cylinder, or a damper may be omitted to simplify the cam.

1 ... Housing (10 is a button placement part, 15 is a key cylinder placement part)
2 ... Button (operation member: 20 is a support, 28 is a cover)
3 ... Link (operating member: 30 is a main vertical plate, 31 is a horizontal plate, 32 is a sub vertical plate)
4 ... Rod (4A is left rod, 4B is right rod)
5 ... Slider (53 and 54 are shaft holes)
6 ... Key cylinder (60 is main body, 62 is convex)
7 ... Cover (71 is a circular hole, 74 is a connecting piece)
8 ... Damper (8a is main body, 8b is gear, 8c is locking piece)
9 ... Lock device 18 ... Cam receiving surface (18a is an arc hole, 18b is an uneven portion, 18c is a step)
17 ... Inside step (17c and 17f are protrusions, 17d and 17e are contact surfaces)
35 ... Guide groove 36 ... Guide groove 38 ... Engaged portion 55 ... Base (56 is a supporting portion, 57 is a mounting portion)
63 ... Cam (65 is a stopper, 66 is a recess)
67 ... Swing piece (67a is a flexible claw)
80 ... ・ Mounting part of fixed body (81 is locking hole)
S1 ... Spring member (biasing means)
S2 ... Spring member (biasing means)
S3 ··· Spring member (biasing means)

Claims (7)

Used to engage and disengage the opening / closing body with the fixed body, the housing and the engagement position and the engagement position that slides in the retracting direction with respect to the housing to maintain the closed state of the opening / closing body with respect to the opening of the fixed body. A rod that can be switched to a release position, an operating member that can switch the rod from a locking position to a locking release position by sliding against an urging force, and an operating member interposed between the rod and the operating member A lock device provided with a key cylinder capable of restricting the movement of the operation member at the locking position of the rod,
The key cylinder has a cam that is provided on the lower side and is integrally rotated, and a lock state that restricts the movement of the operation member by making the operating member immovable by a stopper portion formed on the cam. And a lock device for the opening / closing body, which is switched to an unlocked state in which the movement of the operation member is allowed.   The cam forms a flexible claw together with the stopper portion, and when the key cylinder is rotationally operated at the locking position of the rod, the stopper portion becomes an engaged portion provided on the operating member. 2. The opening and closing according to claim 1, wherein the locking state is switched by engaging with each other, and at the time of the switching, the flexible claw is brought into sliding contact with an uneven portion provided on the housing to provide a moderation feeling. Body locking device.   The lock device for an opening / closing body according to claim 1 or 2, wherein the cam is detachably attached to a main body of the key cylinder.   The cam has two stopper portions, and when one stopper portion engages with the engaged portion, the other stopper portion abuts on an abutting surface provided on the housing to regulate rotation. The lock device for an opening / closing body according to any one of claims 1 to 3, wherein:   The cam has a leg piece projecting from a lower surface thereof, and the leg piece is fitted in a guide groove provided in the housing so as to be prevented from coming off and rotatable by a predetermined angle. The locking device for an opening / closing body according to claim 1. The key cylinder is switched between a locked state in which the stopper portion is engaged with the engaged portion and an unlocked state in which the stopper portion is separated from the engaged portion by a predetermined angle.
The concavo-convex portion is provided at two places of the housing,
The flexible claw is in sliding contact with one of the concave and convex portions immediately before the key cylinder is rotated to reach the locked state and in sliding contact with the other concave and convex portion immediately before reaching the unlocked state. The lock device for an opening / closing body according to any one of claims 2 to 5, characterized in that:   The actuating member has a main vertical plate forming a guide groove for controlling the movement of the rod, and a horizontal plate integrated with the main vertical plate and biased in a rising direction by a spring member. The locking device for an opening / closing body according to any one of claims 2 to 6, wherein the engaged portion is provided so as to project from the main vertical plate.

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