JPH0732436Y2 - Container locking device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention has projections of different lengths arranged side by side on the outer wall surfaces of both the main body and the lid, and the projections on the longer side of the projections have both projections. A latch for a container in which a latch having side walls at an interval to be held is slidably engaged, and by sliding the latch, both protrusions are locked or released via the latch. More particularly, the present invention relates to a container locking device in which the latch can be locked to the protrusion side when the latch is moved in the locking direction.

[Conventional technology]

As described above, as a container locking device capable of locking the latch so that it does not return in the state of being moved in the engaging direction, the one disclosed in Japanese Patent Publication No. 58-32106 is known. There is.

The locking mechanism of this conventional locking device is provided with a flexible tongue piece on one side of the latch, and a hook portion engaging with the end surface of the projection is integrally formed on the end portion of the flexible tongue piece to engage the latch. When the hook moves to the end in the stop direction, the hook engages with the end surface of the protrusion to prevent the latch from returning in the releasing direction. The lock is released by bending the flexible tongue and removing the hook portion from the end surface of the protrusion.

[Problems to be solved by the device]

The lock mechanism in the conventional container locking device, because the engagement and disengagement is due to the flexure of the flexible tongue, the engagement state is by definition unstable and lacking certainty, and during repeated engagement and disengagement, There was a case where the flexible part was destroyed by fatigue. Further, in order to obtain flexibility, the entire latch must be made of a flexible material, which hinders the sliding of the latch and makes it difficult for the latch to slide. Further, the conventional locking mechanism described above has a problem that it is difficult to determine whether the latch is in the locked state with the protrusion or in the released state because the posture of the locked state does not change much between the locked state and the released state. Further, since the tongue piece must be flexed to release the lock mechanism, the force for bending the hook portion is required in addition to the detachment of the hook portion, and this release of the lock mechanism is troublesome. .

The present invention has been made in consideration of the above, and it can maintain a reliable locked state and can withstand repeated use,
The slidability of the latch itself is not hindered, and whether it is engaged or disengaged can be clearly discriminated. Furthermore, the release of the locking mechanism requires only the force to release the locking part, which can be easily released. It is an object of the present invention to provide a locking device for a container that is made possible.

[Means for Solving the Problems]

In order to achieve the above object, the container locking device according to the present invention has projections of different lengths arranged side by side on the outer wall surfaces of both the main body and the lid, and the projections on the longer side of both projections are In a container locking device in which a latch that slidably engages with a shorter projection is slidably engaged, a state in which the latch is moved to the end side in the locking operation direction on the upper surface of the latch Then, a locking lever having an L-shaped locking piece that engages with the end surface of the projection on the locking operation side is rotatably connected via a hinge,
Further, the lock lever in the engaged state is configured to be fitted to the fitting convex portion provided on the latch.

[Action]

By moving the latch in the locking direction with the main body and lid closed, the protrusion on the main body and the protrusion on the lid are held by the latch, and the main body and lid are locked by the latch. To be done. Then, at this time, by rotating the lock lever in the locking operation direction of the latch, the locking piece of the lock lever locks on the end surface of the protrusion, and the movement of the latch in the locking release direction is locked. At this time, the lock lever is fitted and held in the meshing convex portion at the tip of the latch.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 is a main body of a synthetic resin container, 2 is also a lid thereof, and one side portion thereof is connected by a hinge (not shown). Reference numerals 3 and 4 are projections provided on the outer wall surfaces of both the main body 1 and the lid body 2, and reference numeral 5 is a synthetic resin latch that slidably engages with the projections 3 and 4.

The both projections 3 and 4 have different length thereof as shown in FIG. 4, shorter length l ₂ of the cover body 2 side of the protrusion 4 with respect to the length l ₁ of the projection 3 of the main body 1 side In addition, both end surfaces of both protrusions 3 and 4 are in the same plane. Grooves 6 and 7 are provided in the lower portions of the protrusions 3 and 4 opposite to each other in the longitudinal direction, and a concave portion 8 is also provided in the longitudinal direction on the inner surface of the longer protrusion 3 in the opposite direction. The length of the recessed portion 8 is the shorter projection 4
Is longer than the length l ₂ .

Further, the shorter projection 4 is provided at a position slightly retracted from the mating surface of the lid body 2, and when the main body 1 and the lid body 2 are closed, the space between the projections 3 and 4 is increased. There is a gap.

The latch 5 is slightly longer than the length l _{1 of the} longer protrusion 3 and has an inner width that holds the two protrusions 3 and 4, and both side walls 9 and 10 thereof are provided. Protrusions 9a and 10a that engage with the grooves 6 and 7 on the outside of the protrusions 3 and 4 are provided on the lower inside of the. A tongue piece 11 is projectingly provided on an inner middle portion of the latch 5, and a concave portion 8 of the projection 3 is provided at a lower portion of the tongue piece 11.
Is provided with a ridge 11a for engaging with. A stopper 12 is provided on the opposite side of the engaging side of the latch 5 to abut the end surface of the longer projection 3 in a state where the latch 5 is in the movement limit in the engaging direction.

A hinge bracket 13 is provided on the upper surface of the latch 5, and a lock lever 14 is rotatably supported on the hinge bracket 13. A locking piece 14a having an L-shaped cross section is provided at the tip of the lock lever 14, and the locking piece is rotated by rotating the latch 5 in the locking operation direction toward the locking operation side. 14a abuts on the end faces of both protrusions 3 and 4 or faces them with a slight gap.

At the end portion of the upper wall of the latch 5 in the locking operation direction, the latch 5
With the protrusion 3 and
A fitting convex portion 5a slightly protruding from 4 is provided. On the other hand, a recess 14b is provided at an inner corner of the locking piece 14a of the lock lever 14, and when the lock lever 14 is rotated in the locking direction, the fitting projection 5a of the latch 5 engages with the recess 14b. It is supposed to do.

The lock lever 14 has a window 15 while the latch 5
On the upper surface of the above, there is provided a temporary stop projection 16 that engages with and holds the edge of the window hole 15 when the lock lever 14 is rotated in the detaching direction.

In the above structure, the latch 5 is engaged with the longer projection 3 on the main body 1 side. That is, the protrusion 9a on one side wall 9 of the latch 5 is engaged with the groove 6 of the protrusion 3, and the protrusion 11a of the tongue 11 is engaged with the recess 8. In this state, the latch 5 is slidably fitted with a stroke slightly longer than the length l ₂ of the shorter projection 4.

FIG. 4 shows a state in which the latch 5 is engaged with the shorter projection 4. In this state, the projections 3 and 4 are engaged and held by the latch 5, and the main body 1 and the lid 2 are in a locked state. In this state, when the lock lever 14 is rotated toward the locking operation direction, it becomes as shown in FIG. 1 and FIG. 3, and its tip end faces the downstream end surfaces of the projections 3 and 4 in the locking direction, and the latch 5 Is locked. At this time, the concave portion 14b of the lock lever 14 and the fitting convex portion 5a of the latch 5 are fitted to each other, so that the lock lever 14 is maintained in the locked state.

The latch 5 is released by rotating the lock lever 14 upward to release the lock, and then moving the latch 5 to the engagement release side until it disengages from the short protrusion 4.

The lock lever 14 in the unlocked state is locked to the temporary stop projection 16.

[Effect of device]

According to the present invention, since the lock lever 14 is rotatably supported by the latch 5, when the lock lever 14 is locked, the lock lever 14 is stably supported by the fitting convex portion 14a of the latch 5 and is securely supported. The stopped state can be maintained. Further, since the lock lever 14 is rotatably supported by the latch 5 as described above, fatigue does not occur in the rotating portion during the engagement / disengagement operation, and it is possible to endure repeated use well. Further, the latch 5 can be made of a material having excellent slidability regardless of the lock lever 14, and can maintain good slidability. Lock lever 14
The fact that the posture is completely different in the engaged / disengaged state makes it possible to clearly discriminate between the engaged / disengaged states. Furthermore, the force for engaging and disengaging the lock lever 14 is only the force required for engaging and disengaging this with the fitting recess 5a.
Since the force for bending itself is not required, the lock lever 14 can be easily engaged and disengaged.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a perspective view,
2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a line IV-IV of FIG. FIG. 1 is a main body, 2 is a lid, 3 and 4 are protrusions, 5 is a latch, 5a is a fitting protrusion, 14 is a lock lever, and 14a is a locking piece.

Claims (1)

[Scope of utility model registration request] Claims: 1. Protrusions having different lengths are provided side by side on the outer wall surfaces of both the main body and the lid, and the longer protrusions of the both protrusions are slidably attached to the shorter protrusions so that they can be engaged and disengaged. In a container locking device in which a latch to be engaged is slidably engaged, an end surface of the protrusion on the locking operation side is engaged with an upper surface of the latch while the latch is moved to an end side in the locking operation direction. A lock lever having an L-shaped locking piece is rotatably connected via a hinge, and the lock lever in an engaged state is fitted to a fitting convex portion provided on a latch. Locking device for containers.