JP3532060B2 - Lock device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device for locking a fixed object to a fixed object. 2. Description of the Related Art A conventional lock device is disclosed in, for example, Japanese Utility Model Laid-Open No. 58-128273. That is, after the hook member is engaged with the receiving portion of the movable body frame, when the movable body, which is the handle, is pushed down, the inclined cam surface of the engaging projection of the fixed frame body is moved to the edge of the notch of the lock piece. When the engaging protrusion enters the notch while pushing the lock piece backward against the urging force of the spring, and the inclined cam surface passes through the notch to the upper surface side, the lock piece slides forward by the urging force of the spring. The lock piece moves and the lock piece enters the lower side of the abutting surface of the engaging projection to restrict the movable body to the locked position. Then, in order to return the movable main body from the locked position to the unlocked position, the lock piece is slid backward against the urging force of the spring, and the movable main body is pulled up while the engaging projection is kept out of the notch. That is how it is done. [0003] However, in such a conventional locking device, in the pressing stroke immediately before the movable body is pushed down to the locking position, the lock piece once moves backward and then moves forward. Therefore, the lock pin operates in a complicated manner during a short pressing stroke, and the operation of the lock pin becomes unstable, and in some cases, the movable body cannot be reliably restrained at the locking position. Is less reliable. Also, when returning the movable body from the locked position to the unlocked position, the operation of lifting the movable body and the operation of retracting the lock piece against the urging force of the spring are significantly different in the operation direction, Performing both operations with one hand has a problem that it involves difficulty and operability is not good. The present invention has been made in view of such conventional problems, and it is possible to improve the reliability of the locking operation and to improve the operability. It is intended to provide. The gist of the present invention for achieving the above object lies in the following invention. In a lock device for locking the fixed object (20) to the fixed object (10) side, the lock device is a base bracket ( 15), a latch (30) having a hook part (32) formed at one end thereof which can be disengaged from the other side of the fixed object (10) or the fixed object (20); A handle member (40) connected to the end and the base bracket (15), and pivots from an unlocked position at which the hook portion (32) can be released to a locked position at which the hook portion (32) cannot be released. ), A restraining member (50) for restraining the handle member (40), and switching means (18, 60) for the restraining member (50), wherein the restraining member (50) includes the handle member (40). ) Is locked in the locked position so that it cannot rotate. Restricting portion positions the movable said in the binding release position is supported on the handle member (40), said switching means at one end (18,60) (18)
Is formed, and a control part (59) for a handle member (40) is formed on the other end side, and the switching means (18, 60) is provided with a handle. In the operating range immediately before the member (40) rotates from the unlocked position to the locked position, the restraining member (50) is made to wait at the restraining release position, and the restraining member (50) is restrained in the locked position. Urging means (60) for urging the restraining member (50) to a restraining position,
A restricting portion (1) formed on the base bracket (15) for relatively slidingly contacting the restraining member (50) in the operating range to prevent the restraining member (50) from moving to the restraining position.
8), the restricting portion (18) includes a sliding contact surface (18a) on which one end of the restraining member (50) slides, and one end of the restraining member (50) on the sliding contact surface (18a). Is provided with a locking portion (71) which is resiliently locked by the urging means and holds the handle member (40) at a predetermined position within the operating range via the restraining member (50). Consisting of
In addition, the restricted portion (57) of the restraining member (50) moves between the sliding contact surface (18) and the section just before reaching the restraining position.
a) a lock device which is always in sliding contact with (a). Next, the operation of the invention described in the above claims will be described. When the handle member (40) is in the unlocked position, the hook (32) of the latch (30) is locked to the other side of the fixed object (10) or the fixed object (20). At this time, the hook part (32) of the latch (30) can be detached from the other side of the fixed object (10) or the fixed object (20). When the handle member (40) is turned from the unlocked position to the locked position, the switching means (18) is in the operating range immediately before the handle member (40) is turned from the unlocked position to the locked position. , 60) hold the restraining member (50) at the restraining release position, and the handle member (40) can be further rotated to the locking position. During this operation, the restraining member (5
The regulated portion (57) of (0) is always in sliding contact with the sliding contact surface (18a) in the section immediately before reaching the restrained position by moving, and does not rattle. When the handle member (40) is rotated to the locked position, the hook (32) of the latch (30) is fixed.
0) or a state in which it cannot be released from the other side of the fixed object (20), the restraint member (50) moves from the restraint release position to the restraint position, and the handle member (40) cannot rotate to the locked position. Be bound. In order to make the hook part (32) of the latch (30) detachable from the other side of the fixed object (10) or the fixed object (20), the restraining member (50)
May be moved from the restrained position to the restrained release position, and the handle member (40) may be turned from the locked position to the unlocked position. The urging means (6) of the switching means (18, 60)
0) urges the restraining member (50) to the restraining position.
In the operating range immediately before the handle member (40) rotates from the unlocked position to the locked position, the restricting portion (18) of the switching means (18, 60) is relatively in sliding contact with the restraining member (50). Thus, the restraining member (50) is prevented from moving to the restraining position by the urging force, and the restraining member (50) is in a standby state. When the handle member (40) rotates from the unlocked position to the locked position, the restricting portion (18) of the switching means (18, 60) does not stop the restricting member (50), and the restricting member (50) in the standby state is in a standby state. 50) is moved to the restraining position by the urging force. In the operating range immediately before the handle member (40) rotates from the unlocked position to the locked position, the switching means (1)
The regulated portion (57) on one end side of the restraining member (50) is slidably in contact with the regulating portion (18) of (8, 60). When the handle member (40) is in the locking position and the restraining member (50) is in the restraining position, the operating part (59) for the handle member (40) on the other end of the restraining member (50) is operated. The restraint member (50) is moved from the restrained position to the restraint release position, the handle member (40) is rotatable from the locked position to the unlocked position, and the handle member (40) is rotated. Thereby, the unlocking operation of the restraining member (50) and the handle member (4) are performed.
The turning operation of 0) can be operated at once, and the operability is good. When the handle member (40) is rotated from the locked position to the unlocked position, one end of the restraining member (50) slides on the sliding contact surface (18a) of the regulating portion (18), and eventually slides. One end of the restraining member (50) is resiliently locked by a biasing means (60) to a locking portion (71) provided on the contact surface (18a). Thereby, the handle member (40) is held at the predetermined position via the restraining member (50). Since the handle member (40) is fixedly held at a predetermined position, the hand is conventionally carried in the direction of the handle member (40), and the handle member (40) is quickly and surely rotated. be able to. Hereinafter, various embodiments of the present invention will be described with reference to the drawings. 1 to 9 show a first embodiment of the present invention. As shown in FIGS. 1 and 2, a lock device 30a according to the present embodiment is for locking a fixed object 20 as an engine cover to a fixed object 10 side as a vehicle body floor. When the opening of the fixed object 10 is closed by the fixed object 20, the peripheral flange 22 of the fixed object 20 is formed so as to overlap the peripheral portion of the opening of the fixed object 10 from above. A fixed object 20 is pivotally attached to a rear edge of the opening of the fixed object 10 so as to swing between a closed position and an open position. A lock device 30a is provided at the front edge of the opening of the fixed object 10.
Is installed. The lock device 30 a includes a base bracket 15 fixed to the fixed object 10, a latch 30, and a handle member 40. On the front side of the peripheral flange 22 of the fixed object 20, a locked portion 23 is formed corresponding to the lock device 30a. As shown in FIGS. 1 and 3 to 7, the base bracket 15 has a pair of support flanges 16 erected on both side edges of a bottom surface which is a surface fixed to the fixed object 10. A regulating flange 17 is provided upright on the rear edge of the bottom surface. A pivot 16 a is provided on the pair of support flanges 16.
Has been erected. The regulating flange 17 has a pivot 1
An arc-shaped cross-section restricting portion 18 having the axis of 6a concentrically is formed. The latch 30 is formed by forming a round bar material into a generally U-shape, and forming both side bar portions 31 into a curved shape. At one end of the latch 30, a hook portion 32 is formed which can be engaged with and disengaged from the hook portion 23 of the fixed object 20.
A pair of pivots 33 are formed on both sides of the other end of the latch 30 so as to be opposed to each other. The handle member 40 is formed in an inverted U-shaped cross section, and a pair of pivot flanges 46 are provided on both sides of the top plate surface portion 41.
have. Top plate surface portion 41 and pair of pivot flanges 46
Thus, the accommodation space 42 is formed. A front pilot hole 46a and a rear pilot hole 46b are formed in the pivot flange 46 at front and rear positions, respectively. Pivot flange 46
The pivot 33 of the latch 30 is fitted in the front lower hole 46a, and the pivot 16a is fitted in the rear lower hole 46b. The latch 30 exerts a restoring force when the curved side bar portions 31 are extended in a straight line shape. Due to the restoring force of the latch 30, the handle member 40 moves the lock position (the position where the hook portion 32 cannot be released from the hook portion 23) and the unlock position (the hook portion 32 becomes the hook portion) from the neutral point. 23 (a position at which the member 23 can be separated). A bead 43 having a chevron-shaped cross section is cut and raised upward from a top plate surface portion 41 of the handle member 40, and an upper edge of the regulating flange 17 of the base bracket 15 is provided at a rear end edge of the bead 43. , A contacted portion 43a for positioning the handle member 40 at the unlocking position is formed. Further, an embossed portion 44 projecting downward is formed on the top plate surface portion 41 of the handle member 40. The pair of pivot flanges 46 are formed with guide flanges 47 bent to face each other at the front position. A flat plate-shaped restraining member 50 is housed in the housing space 42 of the handle member 40. The front end portion of the restraining member 50 is vertically immovable by the embossed portion 44 and the guide flange 47 and slidably held between the restraining position and the restraining unlock position. Guide flange 47
Is for preventing a foreign substance or a finger of an operator or the like from entering the housing space 42.
In this case, the biasing means 60 is prevented from falling off. A flange is formed on both sides of the rear portion of the restraining member 50, and a long slot 52 is formed in the flange so that the pivot 16a is inserted in the slot 52 so as to be relatively movable in the longitudinal direction. . The rear end of the restraining member 50 is supported by the pivot 16a so as not to be vertically movable and slidable between a restraining position and a restraining unlock position. The rear end of the restraining member 50 is located above the upper edge of the restricting flange 17 of the base bracket 15 when the restraining member 50 is in the restraining position, and moves the handle member 40 from the locked position to the unlocked position. A regulated portion 57 is formed to contact the upper edge of the regulating flange 17 when rotating, and to restrict the handle member 40 to the locked position so that the handle member 40 cannot rotate. A biasing means 60, which is a tension spring, is provided between the cut and bent portion 51 of the restraining member 50 and the pivot 16a. The urging means 60 urges the regulated portion 57 of the restricting member 50 in a direction to resiliently contact the sliding contact surface 18a of the restricting portion 18 of the restricting flange 17 and in a direction of the restricting position. I have. As a result, the restricted portion 57 of the restricting member 50 is always in sliding contact with the sliding contact surface 18a in the section immediately before moving to reach the restricting position. The restraining member 50 is formed with a vibration preventing bead 58 for suppressing the urging means 60 from both sides to prevent the urging means 60 from swinging. The anti-vibration bead 58 restricts the movement of the urging means 60 in directions other than the spring axis direction. The front end of the restraining member 50 projects forward from the front end of the handle member 40 to rotate the handle member 40 between a locked position and an unlocked position. A tongue-shaped operating portion 59 for moving the position is formed. Next, the operation of the first embodiment will be described. Close the opening of the fixed object 10 with the fixed object 20,
In order to fix the fixed object 20 to the fixed object 10 so that it cannot be detached,
First, after the handle member 40 is rotated to the unlocking position, the hook portion 32 of the latch 30 is connected to the locking portion 23 of the object 20.
Hook on. In this hooked state, the latch 30
Is at a position where the hook portion 32 can be removed. In this hooked state, an operating force is applied to the operating portion 59 of the restraining member 50 to rotate the restraining member 50 counterclockwise in FIG. 9 around the pivot 16a against the restoring force of the latch 30. Then, the regulated portion 57 of the restricting member 50 moves while resiliently slidingly contacting the sliding contact surface 18a of the regulating portion 18 of the base bracket 15. Regulated part 57 of restraining member 50
Is always in sliding contact with the sliding contact surface 18a in the section immediately before reaching the constraint position by moving. In FIG. 9, when the restraining member 50 swings counterclockwise, the handle member 40 swings to the locked position.
The handle member 40 and the restraining member 50 oscillate, respectively, against the restoring force of the latch 30, and eventually, the latch 3
When the neutral point exceeds zero, the biasing direction is switched by the restoring force of the latch 30, and the handle member 40 and the restraining member 50 swing counterclockwise in FIG. 9 by the biasing force of the latch 30. In the operating range immediately before the handle member 40 rotates from the unlocked position to the locked position, the restricted portion 57 of the restraining member 50 slides the restricting portion 18 of the base bracket 15 by the urging force of the urging means 60. The restricting member 50 is in a standby state, being in resilient sliding contact with the contact surface 18a. Handle member 4
0 rotates to the locked position, the restricted portion 5
7 is disengaged from the restricting portion 18 of the base bracket 15, and the restraining member 50 is moved to the restraining position by the biasing force of the biasing means 60. Protrudes above the upper edge.
Thus, when the handle member 40 is to be rotated from the locked position to the unlocked position, the restricted portion 57 of the restraining member 50 abuts on the upper edge of the restricting flange 17 of the base bracket 15, and the handle member 40 is moved. The latch 30 is locked to the locked position so that the latch 30 cannot rotate and the latch 30 cannot be detached from the hooked portion 23 on the fixed object 20 side, and the latch 30 can be restrained to the fixed object 10 so that it cannot be detached. The hook 32 of the latch 30 is
In order to be able to disengage from the side, the restraining member 50 is moved from the restraining position to the restraining releasing position shown in FIG. 8 against the biasing force of the biasing means 60, and the handle member 40 is moved clockwise in FIG. It only has to rotate. When the operating portion 59 of the restraining member 50 is pulled toward the front side and the restraining member 50 is moved from the restraining position to the restraining release position shown in FIG. The restricting portion 57 is retracted from the upper edge of the restricting flange 17 of the base bracket 15, and the handle member 40 can be rotated clockwise in FIG. With the operating portion 59 of the restraining member 50 pulled toward the user, the handle member 40 can be turned clockwise in FIG. 8 against the restoring force of the latch 30 as it is. Thereby, the restraint releasing operation of the restraining member 50 and the turning operation of the handle member 40 can be operated at the same time, and the operability can be improved. Handle member 40
Is rotated clockwise in FIG. 8 against the restoring force of the latch 30, the regulated portion 57 of the restraining member 50
The urging force of 0 causes the restricting portion 18 of the base bracket 15 to resiliently slide on the sliding surface 18a. Handle member 4
When the pivot 0 moves beyond the neutral point of the latch 30, the handle member 40 pivots to the unlocking position by the restoring force of the latch 30, as shown in FIG. The handle member 40 is positioned at the unlocking position by contacting the upper edge of the fifteen regulating flanges 17. In the operating range immediately before the handle member 40 rotates from the unlocked position to the locked position, the sliding contact surface 18a of the restricting portion 18 is relatively in sliding contact with the restricted portion 57 of the restraining member 50. The restraining member 50 is prevented from moving to the restraining position by the biasing force, and the restraining member 50 is always in a standby state (when the handle member 40 is turned to the locking position, the restraining member 50 (A standby state in which the urging force moves to the restraint position). Next, a second embodiment of the present invention will be described. FIG. 10 and FIG. 11 show a second embodiment of the present invention. In the second embodiment, the base bracket 15
The locking portion 71 is formed in the regulating portion 18 of FIG. The locking portion 71 is formed so as to be radially recessed from an arc locus about the axis of the pivot 16a. That is, when the handle member 40 is rotated from the unlocked position shown in FIG. 11 to the locked position or from the locked position to the unlocked position, the restricted portion 57 of the restraining member 50 restricts the base bracket 15. Sliding contact surface 18 a of portion 18, and eventually, locking portion 71 provided on regulating portion 18,
The regulated portion 57 of the restraining member 50 is elastically locked by the urging means 60. Thereby, the handle member 40 is held at the predetermined position corresponding to an intermediate position between the locking position and the unlocking position shown in FIG. In this holding state, the handle member 40 tries to rotate to the locked position due to the respective weights of the handle member 40 and the restraining member 50. For this purpose, the respective weights exceeding the urging force of the urging means 60 need to act. As long as the respective weights do not exceed the urging force of the urging means 60, the handle member 40 is stably
Are held at predetermined positions shown in FIG. As shown in FIG. 10, since the handle member 40 is fixedly held in a predetermined position, the hand is conventionally carried in the direction of the handle member 40, and the handle member 40 is quickly and reliably held. Can be rotated.
Then, the handle 40 is moved from a predetermined position shown in FIG.
In order to rotate to the unlock position shown in FIG. 1, the restricted portion 57 of the restraining member 50 is locked against the resilient force of the urging means 60.
Remove from Then, the hook portion 32 of the latch 30 at the unlocking position can be hooked on the hooking portion 23 on the fixed object 20 side, and the handle member 40 is turned from the unlocked position to the locked position, and the fixed object 10 is rotated. Can be fixed to the object 20. Next, a third embodiment of the present invention will be described. FIG. 12 shows a third embodiment of the present invention. In the third embodiment, the regulating portion 18 of the base bracket 15
And a locking portion 72 is formed on the base. The locking portion 72 includes a convex portion 73 formed so as to protrude in a centripetal direction from an arc locus centered on the axis of the pivot 16a, and a concave portion 74 formed at the top of the convex portion 73. That is, when the handle member 40 is rotated from the unlocked position to the locked position or from the locked position to the unlocked position, the restricted portion 57 of the restraining member 50 slides the restricting portion 18 of the base bracket 15. Sliding contact is made with the contact surface 18a, and eventually gets over the convex portion 73 provided on the restricting portion 18, and the restricted portion 57 of the restraining member 50 is elastically locked in the concave portion 74 by the urging means 60. Thereby, the restraining member 5
The handle member 40 is held in the vicinity of the unlock position via the lock lever 0. In the second embodiment, the handle is held at a predetermined position corresponding to an intermediate position between the locking position and the unlocking position. Even if the member 40 is not operated, the hook portion 32 of the latch 30 is held as it is by the hooked portion 2 on the fixed object 20 side.
3, the operability can be further improved. Next, a fourth embodiment of the present invention will be described. FIG. 13 shows a fourth embodiment of the present invention. In the fourth embodiment, the regulating portion 18 of the base bracket 15
Is formed with a locking portion 75. The locking portion 75 is continuous with an arc locus about the axis of the pivot 16a,
It is formed so as to extend linearly in a direction away from the axis. That is, when the handle member 40 is rotated from the unlocked position to the locked position or from the locked position to the unlocked position, the restricted portion 57 of the restraining member 50
The sliding portion 18 comes into sliding contact with the sliding surface 18 a of the regulating portion 18, and eventually slides into a locking portion 75 provided on the regulating portion 18. At this time, the urging means 60 is extended. Then, the regulated portion 57 of the restraining member 50 is resiliently locked to the locking portion 75 by the urging means 60. Thus, the handle member 40 is held in the vicinity of the unlock position via the restraining member 50. In this holding state, the urging force of the urging means 60 is reduced, and when the handle member 40 is to be turned to the locking position, the urging force of the lowered urging means 60 increases. Unless the handle member 40 is rotated against the urging force of the increasing urging means 60, the handle member 40
Is kept stable. In the above-described embodiment, the engine cover is shown as an object to be locked by the lock device 30a. However, the present invention is not limited to this, and the rear window glass of the vehicle, the folding roof of the vehicle, and the cover of the machine tool are provided. The locking device 30a may be used as a buckle of a ski boot, such that mechanical vibration acts on an object to be fixed, or the like. According to the lock device of the present embodiment, the restraining member 50 and the urging means 6
0 is concentrated in the gap between the base bracket 15 and the handle member 40, so that the entire apparatus can be downsized. According to the lock device of the present invention, in the operating range immediately before the handle member rotates from the unlocked position to the locked position, the restraint member is made to wait at the restraint release position, and Since the switching means for moving the restraining member to the restraining position at the locking position is provided, the restraining operation of the restraining member is reliably performed, and the reliability of the locking operation can be improved. Also,
In the operating range immediately before the handle member rotates from the unlocked position to the locked position, the restricting portion of the switching means is relatively in sliding contact with the restraining member, and the restraining member moves to the restraining position by the urging force. When the handle member rotates from the unlocked position to the locked position, the restricting portion of the switching means does not stop the restraining member, and the restraining member in the standby state is attached. The force moves to the restraining position without fail. Further, when the restraining member is at the restraining position, the operating member on the other end side of the restraining member is operated to move the restraining member from the restraining position to the restraining release position,
Since the handle member is rotatable from the locked position to the unlocked position, the unlocking operation of the restraining member and the rotating operation of the handle member can be operated at the same time, and the operability can be improved. Further, since the handle member is fixedly held at a predetermined position within the operating range immediately before the handle member is rotated from the unlocked position to the locked position, the hand is conventionally held in the direction of the handle member. In addition, the handle member can be quickly and surely rotated, and the operability can be further improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a lock device showing a first embodiment of the present invention. FIG. 2 is an explanatory diagram of a mounted state of the lock device according to the first embodiment of the present invention. FIG. 3 is a front view of the lock device according to the first embodiment of the present invention. FIG. 4 is a plan view of the lock device according to the first embodiment of the present invention. FIG. 5 is a side view of the lock device according to the first embodiment of the present invention. FIG. 6 is an end view taken along line VI-VI of FIG. 3; FIG. 7 is an end view taken along the line VII-VII of FIG. 3; FIG. 8 is an operation explanatory view of the lock device according to the first embodiment of the present invention. FIG. 9 is an operation explanatory view of the lock device according to the first embodiment of the present invention. FIG. 10 is a front view of a lock device according to a second embodiment of the present invention. FIG. 11 is a front view of a lock device according to a second embodiment of the present invention. FIG. 12 is a front view of a lock device according to a third embodiment of the present invention. FIG. 13 is a front view of a lock device according to a fourth embodiment of the present invention. DESCRIPTION OF SYMBOLS 10 ... Fixed object 15 ... Base bracket 18 ... Regulator 18a ... Sliding surface 20 ... Fixed object 30 ... Latch 32 ... Hook section 40 ... Handle member 50 ... Restricting member 57 ... Restricted section 60 ... Means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05C 19/14 F16B 2/10 B62D 33/02

Claims (1)

(1) A lock device for locking an object to be fixed to a fixed object, wherein the lock device is a base fixed to one of the fixed object and the fixed object. A bracket, a latch formed at one end thereof with a hook portion detachable from the other side of the fixed object or the fixed object, and a hook connected to the other end of the latch and the base bracket; A handle member that pivots from an unlocked position where the hook portion cannot be released to a locked position where the hook portion cannot be released, a restraint member that restrains the handle member, and switching means for the restraint member; A regulated member which is movably supported by the handle member between a restraining position where the handle member is non-rotatably restrained at the locking position and a restraint releasing position, and a restricting portion of the switching means relatively slidably contacts one end side thereof. Part is formed,
An operating portion for a handle member is formed on the other end side, and the switching means moves the restraint member to the restraint release position in an operation range immediately before the handle member rotates from the unlocked position to the locked position. In the locking position, the restraining member is moved to the restraining position in the locking position. The biasing means biases the restraining member to the restraining position. A restricting portion that slides relative to the member to prevent the restricting member from moving to the restricting position, wherein the restricting portion has a sliding contact surface at which one end of the restricting member is in sliding contact with the sliding contact surface. An end of the restraining member is resiliently locked by the urging means, and a locking portion for holding the handle member at a predetermined position in the operation range via the restraining member is provided; The restricted portion of the restraining member,
A lock device, which is always in sliding contact with a sliding contact surface in a section immediately before reaching a restrained position by moving.