JP2668345B2 - Double engagement type fastener device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener device for holding a door closed in a refrigerating container mounted on a vehicle.

[0002]

2. Description of the Related Art In a conventional fastener device disclosed in Japanese Utility Model Publication No. 51-46232, a mounting substrate is fixed to one of the tightened members, and a receiving member is fixed to the other tightened member. The base end of the operation lever is pivotally attached to the base plate of the operation lever by a pivot parallel to the front surface of the mounting board, and the base end of the hook frame is pivotally attached to the operation lever at a position shifted to the distal end side from the pivot. It is.

In this fastener device, after one clamped body is closed to the other clamped body and the leading end of the hook frame is engaged with the receiving member, the engagement point between the hook frame and the receiving member is set to By rotating the operation lever so that the pivot point of the operation lever and the hook frame approaches the mounting board with respect to the straight line connecting the axis,
Although the two clamped bodies are clamped and held together, the engagement between the hook frame and the receiving member is performed only depending on the elasticity of the hook frame. When mounted on the body to be tightened, the hook frame may instantaneously expand due to vibration of the vehicle body and the body to be tightened, causing the hook frame to lift up, and the leading end of the hook frame to come off the receiver. is there.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fastener device in which even when used in a violent vibration environment, the hook frame does not float up and the engagement between the hook frame and the receiving member is accidentally released. To provide.

[0005]

The double-engagement type fastener device of the present invention will be described below with reference to the accompanying drawings. In the double-engagement type fastener device, a main body 4 fixed to one tightened member 1; A movable base 7 guided so as to slide along the main body 4; a movable base 7 whose base end is pivoted by a pivot 8 parallel to the front of the main body 4; An operation lever 9 pivotally attached to an intermediate portion of the lever 7; and a hook frame pivotally attached to the operation lever 9 by a pivot 10 parallel to the pivot 8 at a position shifted from the pivot 8 to the distal end side. And 11; a spring 12 for slidably biasing the movable substrate 7 in the direction opposite to the metal receiving member 6. The hooking frame 11 is engaged with the projection 6a of the metal receiving member 6 so as to engage with the concave portion 6b of the metal receiving member 6. The tip portion of the movable substrate 7 is inserted and engaged, and the projection 6a of the receiving plate 6 and the tip portion 7 of the movable substrate 7 are engaged.
The tip portion 11c of the hook frame 11 is sandwiched and fixed by d.

[0006]

In this fastener device, after the body to be tightened 1 is closed with respect to the body to be tightened 2, the hook frame 11 is lifted with one hand in the direction away from the mounting substrate 3 around the pivot 10 and rotated. While using the other hand, attach the operating lever 9 to the mounting board 3
It is pulled up and rotated about the pivot 8 in the direction away from, and the tip of the hooking frame 11 is moved to a position where it exceeds the catch 6.

While pushing down and rotating the operating lever 9 toward the mounting substrate 3, the tip portion of the hook frame 11 is projected onto the protrusion 6 of the receiving member 6.
a. When the operation lever 9 is further pressed down and rotated, the movable substrate 7 is drawn toward the receiving member 6 while compressing the spring 12, and the front end 7 d of the movable substrate 7 enters the concave portion 6 a of the receiving member 6 and engages therewith. At the same time, the tip portion 11c of the hooking frame 11 is pinched and fixed by the projection portion 6a of the receiving metal 6 and the tip portion 7d of the movable substrate 7.

At the stage where the tip 7d of the movable substrate 7 is engaged with the receiving member 6, the pivot 10 is moved with respect to the straight line connecting the engaging point of the hooking frame 11 and the receiving member 6 with the pivot 8. Is approaching. Therefore, the elastic force of the spring 12 acts in the direction of maintaining the engagement between the hooking frame 11 and the bracket 6.

[0009]

In the illustrated embodiment, the movable substrate 7 is formed in a U-shaped cross section as a whole, and a spring accommodating space 7e is provided on the back side of the base end. By inserting the movable substrate 7 into the concave portion 4b of the main body 4, the movable substrate 7 is slidably guided in a direction parallel to the front surface of the object to be fastened 1. The hook frame 11 is formed in a U-shape, and has shaft holes 11a and 11b for inserting the pivot shaft 10 at the base end portion.

The main body 4 made of a metal plate is bent at its central portion into a U-shape and provided with the guide recess 4b.
Both leg plate portions 4f and 4g of the main body 4 are fixed to the object to be fastened 1 via the mounting substrate 3 by fasteners 15 and 16 such as screws. The fasteners 15 and 16 are the through holes 4 of the leg plate portions 4f and 4g.
a, 4b, 4c, 4d and through holes 3b, 3c,
Pass 3d and 3e.

The sliding biasing spring 12 of the movable substrate 7 is constituted by a compression coil spring, one end of which abuts against the inner bent plate portion 7a at the base end of the movable substrate 7, and the other end thereof is attached to the mounting substrate 3. It abuts on the central cut-and-raised plate portion 3a. A shaft hole 7b for insertion of the pivot 8 is provided at an intermediate portion of the movable substrate 7, and a shaft hole 9a for insertion of the pivot 8 is provided at the base end of the operation lever 9. Both ends of the pivot 8 are inserted into horizontally long slots 4 a provided in the wall plate portion of the concave portion 4 b of the main body 4, thereby setting a sliding limit of the movable substrate 7.

The receiving member 6 is formed of a metal plate bent in a U-shape, and its both leg portions 6c and 6d are fixed to the tightened member 2 via a mounting substrate 5 by a fixing member 14 such as a screw. ing. The fixing tool 14 includes through holes 6e and 6f of the leg plate portions 6c and 6d.
And through the through holes 5a and 5b of the mounting substrate 6. The recess 6b into which the tip of the movable substrate 7 is inserted is formed by a rectangular space formed between the movable substrate 7 and the mounting substrate 5.

A lock hole 7c provided at the base end of the movable substrate 7
By inserting a lock member 13 such as a padlock hook rod into the lock hole 9c at the tip of the operation lever 9, the operation lever 9 can also be locked at the position where tightening and locking are established.

[0014]

As described above, in the double engagement type fastener device of the present invention, the movable substrate 7 slidably guided along the main body 4.
Is slidably biased in the opposite direction to the metal receiving member 6 by the spring 12, the base end of the operation lever 9 is pivotally connected to the intermediate portion of the movable substrate 7 by the pivot 8, and the base end of the hook frame 11 is pivotally pivoted. It is pivotally attached to the operating lever 9 by 10, 10, and the hook frame 11
The body 1 and the body 2 are tightened and held in a closed state by the leading end of the body being hooked and engaged with the projection 6a of the receiving member 6, but in this tightened state, the body of the vehicle is closed. Even if the hook frame 11 expands momentarily due to resonance with vibration,
Since the movable substrate 7 to which the hook frame 11 is attached via the operation lever 9 is constantly slid and urged by the spring 12 in the direction opposite to the holder 6, the tip of the hook frame 11 and the protrusion of the holder 6 are provided. No gap is formed between the portion 6a and the portion 6a.

Further, the movable substrate 7 is provided in the recess 6b of the receiving metal 6.
Of the hooking frame 11 is fixed between the projecting portion 6a and the tip of the movable substrate 7 so that the to-be-tightened body 1 is on the front side of the to-be-tightened body 2. , The leading end of the hooking frame 11 is prevented from coming off the projection 6a of the receiver 6, and at the same time, the tightened body 1 and the tightened body 2 are prevented from shifting left and right.

As described above, in the fastener device of the present invention,
A double-engagement structure is employed in which the leading end of the hooking frame 11 engages with the projection 6a of the receiving member 6, and the leading end of the movable substrate 7 engages with the recess 6b of the receiving member 6. ,
The protrusion 6a of the receiving plate 6 and the tip of the movable substrate 7 form a hooking frame 11.
Since the front end of the to-be-clamped body is fixed by scissors, there is no fear that the to-be-clamped body is accidentally released and the to-be-clamped body is unintentionally opened even when used in a severe vibration environment. There is a tightening effect in the front, back, left and right, and up and down directions, and since it can be fixed, it is also effective for mounting the housing on a plane.

[Brief description of the drawings]

FIG. 1 is a plan view of a double engagement type fastener device according to an embodiment of the present invention.

FIG. 2 is a front view of the fastener device.

FIG. 3 is a longitudinal sectional view of the fastener device.

FIG. 4 is an exploded perspective view of the fastener device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 One clamped body 2 The other clamped body 3 Mounting board 4 Main body 5 Mounting board 6 Reception 7 Movable board 8 Pivot 9 Operation lever 10 Pivot 11 Hook frame 12 Spring 13 Lock member 15 Fixing tool 16 Fixing tool

Claims (1)

(57) [Claims] 1. A main body 4 fixed to one tightened body 1.
A metal receiving member 6 fixed to the other tightened body 2; a movable substrate 7 guided to slide along the main body 4; and a base end movable by a pivot 8 parallel to the front surface of the main body 4. An operation lever 9 pivotally attached to an intermediate portion of the substrate 7; and a hook pivotally attached to the operation lever 9 by a pivot 10 parallel to the pivot 8 at a position shifted from the pivot 8 to the distal end side. A frame 11; and a spring 12 that urges the movable substrate 7 in a direction opposite to the metal receiving member 6 so that the hook frame 11 is engaged with the projection 6a of the metal receiving member 6 so as to engage with the concave portion 6b of the metal receiving member 6. A front end portion 7d of the movable substrate 7 is inserted into and engaged with the front end portion 11c of the hooking frame 11 by the protrusion 6a of the receiving member 6 and the front end portion 7d of the movable substrate 7.