Catch clip device with lock mechanism

Abstract

To provide a catch clip device with a lock mechanism capable of easily performing a lock releasing operation and a rising operation of an opening / closing lever at a single action.SOLUTION: A lock release mechanism 8 of a catch clip device 1 includes an unlocking lever 11 pivoted on an opening / closing lever 5 by a pivot pin 52b and continuously extending to the rear of the opening / closing lever 5. The unlocking lever 11 is provided so as to release restraint of the opening / closing lever 5 by a locking mechanism 7 by a rotating operation in the same direction as an operation of raising and rotating the opening / closing lever 5 from a fastening position to a release position.SELECTED DRAWING: Figure 1A

Description

[Technical field]

[0001] The present invention relates to a catch clip device for use with equipment storage boxes and the like, and in particular to one having a locking mechanism that prevents the engagement between a latch arm and a receiver from being easily released due to vibration or impact. [Background technology]

[0002] Conventionally, a snap lock used as a lid locking member for a housing is disclosed in Patent Document 1. This snap lock includes a base fixed to the housing, an opening / closing lever rotatably supported by the base, and a latch arm rotatably supported by the opening / closing lever, and closes the lid by hooking the latch arm onto a receiving metal fitting on the lid side and lowering the opening / closing lever to a closed position. A relief lever is pivotally supported on the opening / closing lever. When the opening / closing lever is lowered to the closed position, the relief lever automatically engages the tip of the base (the side opposite the latch arm) with the tip of the opening / closing lever, thereby locking the opening / closing lever so that it does not easily rise to the open position due to an unintended external force. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-241250 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above conventional device, in order to rotate the opening / closing lever to the open position to open the lid, it is necessary to rotate the relief lever in the opposite direction to the opening / closing lever to release the lock. In other words, there is a nuisance in having to perform two operations in different directions to open the lid. Therefore, the present invention has an objective of providing a catch clip device with a locking mechanism that automatically engages the base and the opening / closing lever when the opening / closing lever is lowered to the closed position, and that allows the lock release operation and the opening / closing lever to be easily performed with a single operation. [Means for solving the problem]

[0005] In the following description, reference will be made to the figures of the accompanying drawings, in which: FIG. In order to solve the above problems, the lock release mechanism 8 of the catch clip device 1 of the present invention includes a release lever 11 that is pivotally supported on the opening / closing lever 5 and extends continuously to the rear of the opening / closing lever 5. The release lever 11 is provided so as to release the restraint of the opening / closing lever 5 by the lock mechanism 7 when rotated in the same direction as the operation of rotating the opening / closing lever 5 from the fastening position to the release position. Effect of the Invention

[0006] According to the present invention, a catch clip device with a locking mechanism can be obtained, which allows the lock release operation and the opening / closing lever to be raised easily in a single operation. [Brief description of the drawings]

[0007] [Figure 1A] 1 is a perspective view of a catch clip device according to the present invention in a locked state; [Figure 1B] 1 is a plan view of a catch clip device according to the present invention in a locked state; [Figure 1C] FIG. 1C is a cross-sectional view taken along the line Ic-Ic in FIG. [Figure 2A] 1 is a perspective view of a catch clip device according to the present invention in an unlocked state; [Figure 2B] 1 is a plan view of a catch clip device according to the present invention in an unlocked state; [Figure 2C] FIG. 2C is a cross-sectional view taken along line IIc-IIc of FIG. 2B. [Figure 3A]1 is a perspective view of a catch clip device according to the present invention with an opening / closing lever in an upright release position. FIG. [Figure 3B] 1 is a plan view of a catch clip device according to the present invention with an opening / closing lever in an upright release position. FIG. [Figure 3C] FIG. 3C is a cross-sectional view taken along line IIIc-IIIc of FIG. 3B. [Figure 4] 2 is a perspective view of a hook lever in the catch clip device according to the present invention. FIG. [Diagram 5] 3 is a perspective view of a release lever in the catch clip device according to the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An embodiment of the present invention will be described with reference to the drawings. The catch clip device 1 comprises a main body 2 fixed to one member 101, such as a housing 101 and a cover body 102, and a receiving metal member 3 fixed to the other member 102 opposite to the main body 2, in order to fasten and release between two members such as the housing 101 and the cover body 102.

[0009] The main body 2 comprises a base 4 fixed to one member 101, an opening / closing lever 5 pivotally supported on the base 4, and a latch arm 6 pivotally supported on the opening / closing lever 5.

[0010] The base 4 comprises a base plate portion 41 fixed to the member 102, and a pair of left and right bearing pieces 42 standing up from the base plate portion 41 at the front end of the base plate portion 41 on the side of the receiving metal member 102. In addition, a pair of left and right pin receiving pieces 43 standing up from the base plate portion 41 in the same manner at the rear end of the base plate portion 41, and a lock pin 43a supported by these pieces 43 are provided.

[0011] The opening / closing lever 5 comprises an upper plate portion 51 and a pair of side plate portions 52 bent at right angles from both left and right edges of the upper plate portion 51, and is pivotally supported at its front end by a main shaft 42a on a bearing piece 42 of the base 4. The opening / closing lever 5 is freely rotatable about the main shaft 42a between a tightening position (FIG. 1) where it is laid down towards the base 4 side, and a release position (FIG. 3) where it stands up from the base 4.

[0012] The latch arm 6 has a base end pivoted to the side plate 52 at the middle of the opening / closing lever 5 by a support shaft 52a parallel to the main shaft 42a, and a latch 61 on the tip end is configured to be engaged with and disengaged from the receiving metal member 3. When the opening / closing lever 5 is in the tightening position (FIG. 1), the latch arm 6 engages with the receiving metal member 3 and energizes the tightening spring 62 to tighten the members 101, 102.

[0013] When the opening / closing lever 5, which is in the upright release position (Fig. 3) with the latch 61 of the latch arm 6 hooked onto the receiving metal member 3, is turned over clockwise in Fig. 3C while compressing the tightening spring 62, the direction of action of the tightening spring 62 changes when the support shaft 52a passes over the reference line L (a line passing through the latch 61, the main shaft 42a, and the support shaft 52a) shown in Fig. 1C, and the opening / closing lever 5 is rotatably biased to the tightening position as shown in Fig. 1. That is, the latch 61, the main shaft 42a, and the support shaft 52a are arranged so that the support shaft 52a is below the reference line L when the opening / closing lever 5 is in the tightening position shown in Fig. 1.

[0014] The catch clip device 1 further includes a locking mechanism 7 that automatically engages with the base 4 when the opening / closing lever 5 rotates from the release position (Figure 3) to the tightening position (Figure 1) to lock the opening / closing lever 5 in the tightening position, and an unlocking mechanism 8 that releases the restraint of the opening / closing lever 5 by the locking mechanism 7.

[0015] The locking mechanism 7 includes a hook lever 9 pivoted between the side plate portions 52 by a pivot pin 52b at the rear of the opening / closing lever 5, a lock pin 43a with which the hook lever 9 engages in a locked position (Figure 1) and which disengages in an unlocked position (Figure 2), and a torsion spring 10 that biases the hook lever 9 toward the locked position.

[0016] As shown clearly in Figure 4, the hook lever 9 comprises a pair of left and right bearing pieces 91 pivotally supported on the pivot pin 52b inside the side plate portion 52 of the opening / closing lever 5, a pair of left and right hook pieces 92 formed contiguous to the bearing pieces 91, and an engagement portion 93 connecting the base ends of the two hook pieces 92.

[0017] The torsion spring 10 has one end 10a engaged with the support shaft 52a, a coil portion 10b hooked onto a pivot pin 52b, and the other end 10c hooked onto an engagement portion 93 of the hook lever 9.

[0018] The hook lever 9 is in the locked position when the opening / closing lever 5 is in the upright release position (FIG. 3), but when the opening / closing lever 5 is rotated clockwise in FIG. 3C and reaches the vicinity of the fastening position (FIG. 1), the outer periphery of the hook piece 92 slides against the lock pin 43a, causing the hook lever 9 to rotate a predetermined angle counterclockwise in the figure against the biasing force of the torsion spring 10. When the hook lever 9 reaches a predetermined rotation angle position, the outer periphery of the hook piece 92 disengages from the lock pin 43a, and the hook lever 9 returns to the locked position by the biasing force of the torsion spring 10 and engages with the lock pin 43a (FIG. 1). The hook lever 9, engaged with the lock pin 43a, restrains the opening / closing lever 5 in the fastening position.

[0019] The lock release mechanism 8 is a mechanism for rotating the hook lever 9 in an unlocking direction (counterclockwise in FIG. 1C) so as to disengage the hook lever 9 from the lock pin 43a, and includes a release lever 11 pivoted together with the hook lever 9 by a pivot pin 52b.

[0020] The release lever 11 is a member in which an operating piece 111, a pair of bearing pieces 112, an engagement piece 113, and a contact piece 114 are integrally formed.

[0021] The operation piece 111 is formed so as to extend rearwardly continuous with the upper plate portion 51 of the opening / closing lever 5 when the opening / closing lever 5 is in the tightening position.

[0022] The bearing pieces 112 extend from both the left and right edges of the operation piece 111 while being bent at a right angle, and are pivotally supported on a pivot pin 52 b on the outer side of the side plate portion 52 of the opening / closing lever 5 .

[0023] The engagement piece 113 extends downward from the center of the operation piece 111 and has an engagement portion 113a that overlaps and engages with the engagement portion 93 of the hook lever 9. The engagement portion 113a, together with the engagement portion 93 of the hook lever 9, receives the biasing force of the torsion spring 10. As a result, the release lever 11 is rotatably biased together with the hook lever 9 to the locked position. From this state, by rotating the operation piece 111 in the direction in which the opening / closing lever 5 stands up, the torsion spring 10 is compressed, and the release lever 11 can be rotated together with the hook lever 9 to the unlocked position. At the unlocked position, the abutment piece 114 of the release lever 11 abuts against the rear lower surface of the upper plate portion 51 of the opening / closing lever 5 (FIG. 2C).

[0024] Since the biasing force of the torsion spring 10 is set to be smaller than the tightening force of the tightening spring 62, the release lever 11 rotates relative to the opening / closing lever 5 from the locked position to the unlocked position, and therefore the opening / closing lever 5 maintains the tightened position.

[0025] When the release lever 11 is continued to be rotated after the abutment piece 114 comes into contact with the rear underside of the opening / closing lever 5, the opening / closing lever 5 rotates in the release direction while compressing the tightening spring 62 which is rotatingly biasing the opening / closing lever 5 to the tightening position, and when the opening / closing lever 5 passes the reference line L shown in Fig. 1C, the biasing force of the tightening spring 62 against the opening / closing lever 5 changes to the release direction, and the opening / closing lever 5 reaches the release position (Fig. 3). Note that the state shown by the solid line in Fig. 3 is the state in which the release lever 11 is pulled up, and when the hand is released from the release lever 11, it returns to the position shown by the imaginary line.

[0026] The opening / closing lever 5, which is in the fastened position shown in Fig. 1, becomes unlocked in relation to the locking mechanism 7 when the release lever 11 is pulled up. However, since the opening / closing lever 5 is still held in the fastened position by the fastening spring 92, in order to remove the latch arm 6 from the receiving metal fitting 3, it is necessary to rotate the opening / closing lever 5 upright against the spring pressure until it passes the reference line of the spring 62 in Fig. 1C. This operation of rotating the opening / closing lever 5 upright is performed via the release lever 11. The unlocking of the locking mechanism 7 and the subsequent operation of rotating the opening / closing lever 5 upright can be performed in a single operation by pulling up the release lever 11. [Explanation of symbols]

[0027] 1 Catch clip device 2 Main unit 3. Supporting metal parts 4 Pedestal 41 Circuit Board 42 Bearing piece 42a main shaft 43 Pin receiving piece 43a Lock pin 5 Opening / Closing Lever 51 Upper plate 52 Side plate part 52a Support shaft 52b Pivot 6 Latch Arm 61 Bet 62 Clamping spring 7 Locking mechanism 8 Unlocking mechanism 9 Hook Lever 91 Bearing piece 92 Hook piece 93 Engagement part 10 Torsion spring 10a One end side 10b Coil section 10c Other end side 11 Release lever 111 Operation piece 112 Bearing piece 113 Engagement piece 113a Engagement part 114 Contact piece 101 Components (e.g., housing) 102 Parts (e.g., lid)

Claims

1. In order to fasten and release the two members, the device comprises a main body fixed to one member and a receiving metal member fixed to the other member opposite the main body, a catch clip device in which the main body comprises a base having a pair of bearing pieces standing up from a fixing surface at a front end portion on the receiving metal member side and fixed to one of the members; an opening / closing lever pivoted at one end side to the bearing pieces of the base by a main shaft and rotatable between a tightening position in which it is collapsed towards the base side and a release position in which it stands up from the base; a latch arm whose base end side is pivoted at an intermediate portion of the opening / closing lever by a support shaft parallel to the main shaft and whose tip end side is engageable with and disengageable from the receiving metal member and engages with the receiving metal fitting when the opening / closing lever is in the tightening position; a locking mechanism provided to automatically engage with a part of the base while the opening / closing lever is rotating from the release position to the tightening position to lock the opening / closing lever in the tightening position; and an unlocking mechanism provided to release the restraint of the opening / closing lever by the locking mechanism, the lock release mechanism includes a release lever pivotally supported on the opening / closing lever and extending continuously rearward of the opening / closing lever, A catch clip device with a locking mechanism, characterized in that the release lever is configured to release the constraint of the opening / closing lever by the locking mechanism when rotated in the same direction as the operation of rotating the opening / closing lever from a tightening position to a release position.

2. The base further includes, at a rear portion, a pin receiving piece that stands up from the fastening surface, and a lock pin that is supported by the pin receiving piece in parallel with the main shaft, the lock mechanism includes a hook lever pivotally supported at a rear portion of the opening / closing lever by a pivot pin parallel to the support shaft, rotatable between a locked position where the hook lever engages with the lock pin and an unlocked position where the hook lever disengages from the lock pin and biased to rotate to the locked position; the hook lever is provided with a hook portion that can instantly rotate to an unlocked position by sliding against the lock pin while the opening / closing lever is rotating from a release position to a fastening position, and then returns to a locked position and automatically engages with the lock pin at the fastening position of the opening / closing lever, The catch clip device with a locking mechanism as described in claim 1, characterized in that the release lever is pivoted together with the hook lever by the pivot pin, and is equipped with an operating piece extending continuously to the rear of the opening / closing lever, and an engagement piece that engages with the hook lever, and is rotatably biased to a lock position together with the hook lever, and is arranged so that the opening / closing lever can be rotated to a release position after the hook lever is rotated to an unlocked position by rotating the operating piece in the upright direction of the opening / closing lever.

3. the release lever has an abutment piece that abuts against a lower surface of the opening / closing lever when in an unlocked position, 3. The catch clip device with a locking mechanism according to claim 2, wherein the opening / closing lever receives a rotational operating force in the release direction from the release lever via the abutment piece that abuts against the lower surface of the opening / closing lever.

4. The hook lever and the release lever are urged to rotate together by a torsion spring, The catch clip device with a locking mechanism as described in claim 2, characterized in that one end of the torsion spring is engaged with the support shaft, a coil portion is hung on the pivot pin, and the other end is engaged with an engagement portion between the hook lever and the release lever.

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