JPS6022191Y2 - Lidlock device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lid lock device for a glove box or the like.

An object of the present invention is to make the assembly structure of the cam and knob for holding and unlocking the ratchet in the locked position compact, and to prevent them from falling off.

A lid lock device is attached to the opening/closing lid of a glove box installed in the instrument panel of an automobile, which engages and disconnects from a striker fixed inside the box.

In this lid lock device, a ratchet that engages and disengages from a striker is pivotally supported in a cylindrical housing fixed to an opening/closing lid, and a cylindrical cam for holding and unlocking the ratchet in a locking position is disposed within the housing. The cam and the knob are rotatably fitted into the cam and the knob.

In conventional locking devices, the structure for preventing the cam rotatably fitted into the housing from being pulled out in the axial direction includes a dowel pin that engages in a circumferential elongated hole formed in the cam. It is driven in from the outer circumferential surface.

Therefore, if the driven dowel pin falls off, the cam may come out of the housing.

In addition, since the knob for rotating the cam is integrally assembled by insert molding or screwing, it not only requires a large number of assembly molding processes, but also because the knob is located outside the end surface of the housing. The length in the direction was long, making it difficult to make it smaller and lighter.

The present invention improves the above-mentioned conventional problems by creating an assembly structure that reduces the number of man-hours, axial length, and cost for assembling the knob and cam, and ensures that the retaining pin does not fall off when the cam is removed. It is characterized by:

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 2 and 3, reference numeral 1 indicates a cylindrical housing.

A rib 2 and a guide member 8 are integrally formed on the housing 1, and the rib 2 has a ratchet 3 having a fork-shaped pawl 6 with an engaging portion 5 that engages and disengages with a striker (not shown). is rotatably connected to a shaft 4, and a spring 7
The rotating force is always applied in the releasing direction.

Further, the guide member 8 is provided with a guide long groove 9 for guiding the pawl 6 of the ratchet 3.

Furthermore, a cylindrical cam 11 is rotatably fitted into the housing 1.

As is clear from FIGS. 4 and 5, this cam 11 has an axial groove 12 on a part of its circumference and a circumferential guide hole 1.
3 is provided, the split groove 12 allows the engagement protrusion 10 formed on the ratchet 3 to pass through, and the guide hole 13 allows a rivet 14 driven from the housing 1 to pass through, and allows the rotation of the cam 11 to pass through the guide hole 13. It allows movement and prevents axial removal.

The cam 11 is then moved to the ratchet 3 by the spring 15.
The engaging protrusion 10 formed in the cam 11 engages with the inner circumferential surface of the cam 11 other than the groove 12, and rotational force is applied in the automatic restoring direction so as to maintain the locking position of the ratchet 3.

Further, a pair of left and right engaging legs 16 are provided on the outer end surface of the cam 11.
are integrally extended.

A knob 17 is fitted onto this engagement leg 16.

That is, as shown in FIGS. 2, 4, and 5, the knob 17 has a protrusion 18 that engages with the end of the engagement leg 16 to prevent it from being pulled out, and an abutment part that engages in the rotational direction. 19 is formed, and when this knob 17 is assembled to the engaging leg 16, a part of the inner circumferential surface of the knob 17 comes into contact with the head of the rivet 14 driven into the housing 1, and the rivet 14 is removed. It is designed to restrict movement in the direction.

In FIG. 2, reference numeral 20 indicates a lid, and 21 indicates a mounting screw hole to the lid 20.

The locking device of the present invention having the above structure can be locked and unlocked in the same way as conventional locking devices.

That is, the state indicated by the solid line in FIG. 2 shows the locked state, in which the engaging protrusion 10 formed on the ratchet 3
A striker (not shown) presses the spring 7 while being engaged with the engaging portion 5 to hold the ratchet 3 in the lock position.

When unlocking from such a locked state,
When the knob 17 is rotated, the cam 11 accumulates a reaction force in the spring 15 via the engagement leg 16 and rotates within the housing 1 .

When the split groove 12 and the engagement protrusion 10 are in phase with each other due to the rotation of the cam 11, the engagement protrusion 10 passes through the split groove 12, and the ratchet 3 is moved by the spring 7 in the lock release direction (imaginary in FIG. 2). (indicated by the line) to disengage the striker.

At this time, the engaging protrusion 10 engages with the split groove 12 and the cam 11
Restrains restoration and maintains unlocked state.

Therefore, the lid 20 can be opened and closed freely, and when the lid 20 is closed, it is automatically locked.

That is, by closing the open lid 20, the pawl 6 of the ratchet 3 comes into contact with the striker, and the ratchet 3 is rotated against the pressing force of the spring 7 to the lock position.

As a result, the engagement protrusion 10 disengages from the groove 12 of the cam 11 and is located on the inner peripheral surface of the cam 11.

Therefore, the cam 11 is automatically restored together with the knob 17 by the rotational force of the spring 15, and the cam 11 is brought into the locked state shown in solid line in FIG.

Therefore, in the present invention, the knob 17 is prevented from being removed by a pair of engaging legs 16 formed integrally with the cam 11 and a protrusion 18 formed on the knob 17, and the rotation direction is controlled by the abutting portion 19.
Since the knob 17 is in contact with the cam 11, the knob 17 is securely installed without coming off the cam 11.
By simply pushing the holder into the engaging leg 16, the engaging leg 16 is elastically deformed to engage and fit, making installation extremely easy.

Also, by installing this knob 17, the housing 1 can be
Since the rivet 14 is inserted deeply into the inner diameter of the knob 17, the head of the rivet 14 driven into the housing 1 to prevent the cam 11 from being removed comes into contact with the inner diameter of the knob 17 to prevent the rivet 14 from falling off. In addition to completely preventing removal, the relative length between the housing 1 and the knob 17 is extremely short, which has the advantage of making the overall length compact, reducing costs by reducing the number of parts and assembly man-hours. This has the advantages of reduced weight and improved durability.

[Brief explanation of the drawing]

Figure 1 is a front view of the device of the present invention as seen from the knob side, Figure 2 is a sectional view taken along the line n-n' in Figure 1, Figure 3 is a view in the direction of Figure 2, and Figure 4 is a view of the knob section. Figure 1 ■-■′ line cross-sectional view, 5th
The figure is a view in the direction of the arrow ■ in Figure 4. 1... Housing, 3... Ratchet, 4... Shaft, 7... Spring, End...
...Guide member, 10...Engagement protrusion, 11
...Cam, 12...Split groove, 13...
...Guide L 14------Rivet, 15・
... Spring, 16 ... Engagement leg, 17
...Knob, 18...Protrusion, 19...
...Abutment part.

Claims (1)

[Scope of utility model registration request] A ratchet that is rotatably attached to a cylindrical housing and has a spring that applies rotational force in the unlocking direction.
a guide member that guides the ratchet; a cylindrical cam that is fitted into the housing so as to allow it only in the rotational direction and that holds and unlocks the ratchet in the lock position; and a cylindrical cam that restores the cam to the lock position. In a lid lock device consisting of a spring and a knob that rotates the cam, a rivet for preventing the cam from being removed is driven into the housing along the radial axis, a pair of engaging legs are integrally provided on the cam, and the knob is rotated. Engage a removal prevention protrusion formed on the knob with the engagement leg, and abut the rotational abutment part formed on the knob to fit it, and bring the inner diameter of the knob into contact with the head of the rivet. Radlock device characterized by: