JPH10169274A - Rotary lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary lock device which can deal with even a small wall thickness of the edge of an opening to and from which a key means is engaged and disengaged. SOLUTION: This device comprises a rotating member 11, which has a handle 12, a trunk part 13 extended from the handle 12, and an engaging piece 14 provided on the trunk part 13, and a mounting cylinder member 21 for mounting the rotating member 11 on a lid 31, and by rotating tie rotating member 11 the engaging piece 14 is engaged with the corresponding part of the edge of an opening closed by the lid 31 or is released from the corresponding part of the edge of the opening. In this case, the engaging piece 14 is provided in a part of the trunk part 13 along the direction of its axis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary lock device such as a lid for a dashboard in an automobile or a lid for a tool box in a trunk room.

[0002]

2. Description of the Related Art The above-mentioned conventional rotary lock device has a knob, a stem extending from the knob, a rotating member having key means provided at a tip of the stem, and an attachment for attaching the rotating member to a lid. By rotating the rotating member, the key means engages with the corresponding portion of the opening edge closed by the lid, or the key means separates from the corresponding portion of the opening edge. Such a rotary locking device is disclosed, for example, in Japanese Utility Model Publication No. 58-20057.

[0003]

In the conventional rotary lock device described above, the key means is provided at the tip of the trunk, so that even if the distance between the knob and the key means is reduced,
There was a limit. Therefore, when the thickness of the opening edge where the key means engages and disengages is small, there is a disadvantage that the rotary lock device cannot be used.

The present invention has been made in order to solve the above-mentioned inconveniences, and provides a rotary lock device which can cope with a thin wall of an opening edge with which a key means engages and disengages. Things.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a knob, a stem extending from the knob, a rotating member having key means provided on the stem, and a mounting cylinder member for attaching the rotating member to a lid. By rotating the rotating member, the key means engages with a corresponding portion of the opening edge closed by the lid, or the key means detaches from the corresponding portion of the opening edge. Are provided in the middle of the axial direction. An elastic piece extending along the circumferential surface of the trunk is provided integrally with the trunk by cutting off a part of the columnar trunk, and key means are provided on the outer peripheral surface of the elastic piece and the inner surface of the mounting cylinder member. It is desirable to provide complementary locking means for locking the rotating member in a state in which the rotating member is engaged with the corresponding portion of the opening edge, and locking the rotating member in a state in which the key means is detached from the corresponding portion of the opening edge. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a rotary lock device according to an embodiment of the present invention, FIG. 2 is a side view of the rotary lock device of FIG. FIG. 4 (a) is a partial perspective view from the side of a mounting cylinder member in which the rotary lock device of FIG. 1 is mounted on a lid.
(B) is an operation explanatory diagram. 4 (a) and 4 (b)
4 corresponds to an enlarged sectional view taken along line XX of FIG.
4A shows a locked state, and FIG. 4B shows an unlocked state.

In these figures, reference numeral 11 denotes a rotating member made of synthetic resin, and a knob 12 picked up by a user with a finger, a stem 13 extending substantially at the center of the back of the knob 12, and a stem 13 In the axial direction, an engaging piece 14 is provided as key means extending in the radial direction of the trunk 13, and a metal leaf spring 15 for reinforcing the engaging piece 14 is provided. The above-mentioned knob 12 has a circular base 12a and this base 12
On the front side of a, a knob 12 raised up across the diameter
and a concave portion 12c that accommodates one end of the leaf spring 15 flush with a portion of the base portion 12a facing the engaging piece 14.

The stem 13 has a shape obtained by cutting off a substantially 90-degree range of the cylinder in the axial direction, and extends along the circumferential surface on the tip side, that is, on the side opposite to the knob 12, and has a shaft formed on a part of the outer circumferential surface. An elastic piece 13b is provided having a protruding ridge 13a extending in the direction, and a predetermined distance from the base 12a.
The opening 13c into which the first protrusion 22c is loosely fitted is formed by the elastic piece 13b.
And the mounting cylinder member 2 is provided in the circumferential direction on the opposite side with respect to the shaft.
Elastic legs 13e each having a claw 13d engaging with 1 are provided at the distal end at intervals of 180 degrees. And the leaf spring 15
Extends along the U-shape from the concave portion 12 c of the knob 12 to the trunk portion 13 and the engagement piece 14, and the portion of the engagement piece 14 is
Is folded to hold.

Reference numeral 21 denotes a mounting cylinder member made of a synthetic resin, which has a double cylinder structure of an inner cylinder 22 having an outer diameter of the trunk 13 having an inner diameter and an outer cylinder 23. A projection 24 is provided that extends to the base 12a of the knob 12, is covered and covered by a fitting hole 33 of the lid 31, and functions as a detent. And the inner cylinder 22
And the protruding portion 24 protrudes from the outer cylinder 23 by the thickness of the lid 31, and the inner cylinder 22 and the outer cylinder 23
It has been cut out so that it can be rotated by degrees.

A groove 22 is formed on the inner surface of the inner cylinder 22 so that the ridge 13a of the stem 13 engages at both ends which are rotated by approximately 90 degrees.
a, 22b, a projection 22c that fits loosely into the opening 13c when the trunk 13 rotates approximately 90 degrees, the trunk 13 and the elastic piece 1
3b, the base 12a of the knob 12 and the elastic piece 1
3b, a protruding piece 22d facing the elastic piece 13b when the trunk 13 rotates. The complementary locking means includes a ridge 13a and grooves 22a, 22a.
b.

Reference numeral 31 denotes a lid for closing the opening, which is provided with a circular hole 32 into which the inner cylinder 22 is fitted, and a fitting hole 33 which communicates with the hole 32 and into which the projection 24 is fitted. 32,3
Reference numeral 3 denotes a size covered by the base 12 a of the knob 12. Reference numeral 41 denotes an opening edge, for example, an opening edge of a glove box closed by the lid 31.

Next, mounting will be described. First, FIG.
In the state shown in FIG. 3, the engaging piece 14 of the rotating member 11 is inserted into the hole 32 from the front side of the lid 31 from the front end side, and the trunk 13 is inserted into the hole 32 while rotating from the lower side to the upper side.
a is brought into contact with the lid 31. Next, the elastic leg 13e is bent to insert the claw 13d into the inner cylinder 22 of the mounting cylinder member 21, the protruding piece 22d is positioned between the trunk 13 and the elastic piece 13b, and the mounting cylinder member is When the outer cylinder 23 is pressed against the lid 31 by pressing the inner cylinder 22 and the projection 24 into the corresponding holes 32 and the fitting holes 33 and the outer cylinder 23 is brought into contact with the lid 31, the elastic legs 13 are pressed.
e is expanded by passing through the inner cylinder 22 so that the claw 13d
Engages with the mounting cylinder member 21, so that the rotating member 11 can be mounted on the lid 31 by the mounting cylinder member 21, as shown in FIGS.

At this time, the ridge 13a is, for example, as shown in FIG.
As shown in (a), the engagement piece 14 is engaged with the groove 22a for locking the engagement piece 14 in the locked state. In addition, the protrusion 22c is
After the inner cylinder 22 is slightly bent and slides on the outer periphery of the trunk 13, it is fitted into the opening 13c.

Next, the operation will be described. First, for example, the opening of the dashboard is closed with the lid 31, and FIG.
In other words, as shown by the solid line in FIG.
When the rotary member 11 is rotated counterclockwise while the knob 12b is gripped in the locked state in which is engaged with the opening edge 41, the elastic piece 13b bends inward due to the protrusion 13a detaching from the groove 22a. Therefore, the knob 12b can be rotated counterclockwise.

[0015] Then, as shown in FIG.
When the rotating member 2b is rotated approximately 90 degrees, as shown by the dotted line in FIG. 3, the engaging piece 14 is separated from the opening edge 41 to be in the unlocked state, and the ridge 13a is engaged with the groove 22b to rotate the rotating member. 11 is locked in an unlocked state. Therefore, the dashboard can be opened by rotating the lid 31.

When the rotating member 11 is rotated from the unlocked state to the locked state after the lid 31 is rotated to close the dashboard, the engaging piece 14 engages with the opening edge 41 to lock the dashboard. State, and the ridge 13a is
b to lock the rotating member 11 in the unlocked state. Therefore, the lid 31 does not open.

As described above, according to the embodiment of the present invention, the engagement piece 14 is provided in the axial direction of the trunk 13 in the radial direction so that the distance between the knob 12 and the engagement piece 14 can be reduced. So that the opening edge 41 from which the engagement piece 14 is disengaged
Can be accommodated even if the thickness is small. Since the complementary locking means for locking the rotating member 11 in the locked state and the unlocked state is provided, the rotating member 11 can be maintained in the locked state and the unlocked state.
Further, the leaf spring 15 is moved from the concave portion 12 c of the knob 12 to the trunk portion 1.
3. Since the engagement piece 14 is arranged in a U-shape, the engagement piece 14
Can be reinforced by the leaf spring 15.

In the above-described embodiment, the complementary locking means is constituted by the ridge 13a provided on the elastic piece 13b and the grooves 22a and 22b provided on the mounting cylinder member 21, but the elastic piece is provided with a groove. This is a configuration in which a ridge is provided on the mounting cylinder member 21 and functions similarly. Although the leaf spring 15 is bent so as to hold only the engagement piece 14, if the leaf spring 15 is bent so as to hold the trunk 13, the reinforcement of the engagement piece 14 can be further improved. it can.

[0019]

As described above, according to the present invention, the key means is provided midway in the axial direction of the trunk so that the distance between the knob and the key means can be reduced, so that the key means is disengaged. Even if the thickness of the opening edge is thin, it can be handled. Since the complementary locking means for locking the rotating member in the locked state and the unlocked state is provided, the rotating member can be maintained in the locked state and the unlocked state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rotary lock device according to an embodiment of the present invention.

FIG. 2 is a side view of the rotary type lock device of FIG.

FIG. 3 is a partial perspective view from the side of a mounting cylinder member in which the rotary lock device of FIG. 1 is mounted on a lid.

FIGS. 4A and 4B are explanatory diagrams of the operation.

[Explanation of symbols]

 Reference Signs List 11 rotating member 12 knob 12a base 12b knob 12c recess 13 trunk 13a ridge 13b elastic piece 13c opening 13d claw 13e elastic leg 14 engaging piece 15 leaf spring 21 mounting cylinder member 22 inner cylinder 22a, 22b groove 22c protrusion 22d protrusion 22d Outer cylinder 24 Projecting part 31 Lid 32 Hole 33 Fitting hole 41 Opening edge

Claims (2)

[Claims] 1. A knob having a stem extending from the knob, a rotating member having key means provided on the stem, and a mounting tubular member for attaching the rotating member to a lid, and rotating the rotating member. Thereby, in the rotary lock device in which the key means is engaged with a corresponding portion of the opening edge closed by the lid or the key means is detached from the corresponding portion of the opening edge, A rotary lock device provided in the middle of the axial direction. 2. The rotary lock device according to claim 1, wherein a part of the columnar trunk is cut off, and an elastic piece extending along a circumferential surface of the trunk is provided integrally with the trunk. The rotating member is locked on the outer peripheral surface of the elastic piece and the inner surface of the mounting cylinder member in a state where the key means is engaged with a corresponding portion of the opening edge, and the key means is fixed on the opening edge. A rotary locking device, comprising complementary locking means for locking the rotating member in a state where the rotating member is detached from the corresponding portion.