JPS6023411Y2 - globe box lock - Google Patents

Description

[Detailed description of the invention] This invention is installed on the door plate of the glove box of a car.
A cylinder lock that is equipped with a hook that engages with a striker placed on the box side when the door plate is closed, and that has a built-in rotor that rotates between the open door, closed door (unlocked), and locked positions. Related to glove box locks, there is a hook that is biased in the door opening direction at the rear end of the rotor, and when the door plate is closed, it engages with the strut and squid provided on the box side and is forced to rotate in the door closing direction. furthermore, an engaging element is disposed on the rear end circumferential side of the rotor that automatically moves in and out of the engaging hole of the hook in the axial direction in relation to the rotation of the rotor between the door closing position and the door opening position. The door closing position of the hook is held between the closed door and locked positions by the engagement element entering the engagement hole, and when the rotor is turned to the door opening position and the knob or key is released, the hook is opened. To provide a novel glove box lock configured to automatically return a rotor to a closed door position by the action of a spring that biases rotation toward the door.

The above-mentioned locking device has a lock at the rear end of the cylinder lock rotor.
Since the hook is pivoted perpendicular to the rotor axis direction, the rotational force of the rotor and the rotational direction of the hook match, and the spring interposed between the rotor and the hook has the rotational force of the hook in the door opening direction. The glove box lock is characterized by a structure that applies a force to return the rotor to the open door position after it has rotated to the open door position, making the lock compact and minimizing the protrusion of the hook into the box. The purpose is to provide.

Hereinafter, the present invention will be explained based on illustrated embodiments.

Figure 1 shows the glove box lock according to the present invention.
1 is a manual operation knob made of resin, 2 is a cylinder lock outer barrel, 3
is a rotor, and the rotor 3 has opening doors (
I) - Door closed/unlocked (II) - Locked (I [I) Rotates between positions.

The knob 1 is fitted onto a rotor neck 3a so as to rotate integrally with the rotor 3, and has a hole in the center thereof into which a key 12 is inserted.

A plurality of tumblers 11 are housed in a plurality of grooves formed perpendicularly to the axial direction of the rotor 3, and when a key is removed, the tumblers 11 project into tumbler locking grooves 13 and 14 to restrict rotation of the tumblers.

Further, a hook 7 having forked fork teeth 7C is rotatably supported perpendicularly to the rear end of the rotor 3 in the axial direction.

Reference numeral 6 denotes an engaging element that fits into a retaining hole 7a formed in the hook 7 and prevents the hook from returning to rotation when the hook 7 engages with the striker 15 in the box and rotates to the door closing position; It is housed in the guide groove 10 of the outer cylinder 2 along the rotor 3 and is always pressed toward the hook by the spring 9.

In order to move the engaging element 6 backward at the door open position, that is, to disengage the hook 7, the engaging element 6 is provided with a protrusion 6a, which is fitted into the cam groove 5 shown in FIG. 5, and moved to the closed door position. When the rotor rotates from the position to the door opening position, the protrusion 6a of the engaging element slides along the inclined surface 5a of the cam groove, causing the engaging element 6 to retreat.

Reference numeral 6a denotes a protrusion for guiding the advance and retreat of the retainer, which is provided protruding from the retainer.

After biasing the hook 7 in the door opening direction and rotating the rotor 3 from the door closing position to the door opening position, a coiled spring 8 causes the hook 7 to move to the door opening position in order to automatically return the rotor 3 to the door closing position. It is twisted to provide rotational force, and one end is hooked to the fork tooth 7c of the hook 7, the other end is hooked to the edge of the notch 2b of the outer cylinder 2, and further extends from the notch in the axial direction to form a recess in the rotor. The straight portion 8a is fitted into the groove 4.

As shown in FIG. 3, the groove 4 does not act on the straight portion 8a of the coiled spring when the rotor 3 rotates between the closed and locked positions.
In the rotation from the closed door position (2) to the open door position (I), the coiled spring linear portion 8a is pressed, and the coiled spring 8 is formed in the rotor 3 so that its rotation angle is twisted.

13 shown in FIG. 4 is a tumbler locking groove in the locked position;
Reference numeral 14 denotes a tumbler locking groove between the closed door and open door positions, which is formed to allow movement of the tumbler 11 in the rotating direction so that even if the key 12 is removed, the rotor 3 can freely rotate between the closed door and open door positions. do.

Reference numeral 2a shown in FIG. 2 is a protrusion protruding from the end of the outer cylinder, which restricts the rotation of the hook 7 between the opening and closing positions in relation to the notch 7b formed in the hook 7. is a circlip for hook removal.

The operation of the present invention will be explained based on the above configuration.

In Figure 1, the hook 7 is the striker 15 on the glove box side.
engages with and rotates against the coiled spring 8 to the closed door position ■,
Rotor 3 is also in the closed door position ■ (unlocked position) and key 1
2 is removed, and the tumbler 11 is projected into the tumbler locking groove 14 between the closed door and open door positions.

In this position, the engaging element 6 also enters the engaging hole 7a of the hook, and prevents the hook 7 from returning to the door opening position I.

From this state, opening the door without using a key is performed by rotating the knob 1.

That is, as shown in FIG. 4, the tumbler 11 protrudes into the tumbler locking groove 14 between the closed door and open door positions;
Rotation between door open positions is not restricted.

When the rotor 3 rotates toward the door opening position 1, the wall 4a of the rotor groove presses the straight portion 8a of the coiled spring to further twist the coiled spring, as shown in FIG.

Further, the protrusion 6a of the engager slides along the cam groove inclined surface 5a of the rotor 3 shown in FIG. It is released and rotated to the door opening position I, releasing the striker 15.

In this position, the coiled spring 8 has an angle between the closed door position and the opened door position which is further bent, and when the knob 1 is released, the rotor 3 is free and returns to the closed door position (2).

The movement of the engaging element 6 will be explained with reference to a developed view of the rotor cam groove 5 in FIG. 6.

The cam groove 5 is a concave hole bored on the outer peripheral surface of the rear end of the rotor 3 as shown in the figure, and the left side in the figure is the hook 7 side, and the right side is the knob 1 side.
When the protrusion 6a of the engager is on the left, the engager 6 moves forward and is engaged with the hook 7, and when it is on the right, the engager 6 is released from the hook and is in a retreated state.

Further, when the protrusion 6a of the engaging element is at the upper end, the rotor 3 is at the door open position I, the middle is at the closed/unlocked position (2), and the lower end is at the locked position (3).

In the figure, thin arrows indicate the trajectory of the protrusion 6a due to rotor rotation, and thick arrows indicate the trajectory of the protrusion 6a due to rotor rotation, and the thick arrow indicates the closing operation of the door, that is, the rotation of the hook 7 from the open door position I to the closed door position ■, and the engagement between the engager 6 and the hook 6a. This figure shows a state in which the mating holes 7a match and the engaging element 6 moves forward.

In the door opening operation using the above-mentioned knob, the engaging protrusion 6a slides on the inclined surface from the A position, reaches the B position, and releases the foot 7.
When the door plate is opened, it returns to position C by the rotational force of the coiled spring 8.

In the C position, the rotor 3 remains in the closed/unlocked position (2), and the hook 7 remains in the open position I.

When the door plate is closed in this position, the striker 15 inside the box and the fork teeth 7C of the hook engage, moving the hook 7 to the door closing position■
The engaging element 6 moves forward to enter the engaging hole 7a, and the protrusion 6a moves from the C position of the cam groove 5 to the first A position.

The locking operation at this position is performed as follows.

When the key is inserted in the A position, that is, the state shown in FIG. 1, the tumbler 11 is accommodated in the rotor 3, so that the tumbler locking groove 14 on the unlocked position side and the tumbler locking groove on the locked position side as shown in FIG. The rotor 3 is not obstructed by the wall interposed between the grooves 13.
rotates to the locked position ■.

When the key 12 is removed at this position, the tumbler 11 protrudes into the tumbler locking groove 13 on the locked position side, and the rotor cannot be rotated to the unlocked position (2) without using the key.

During this time, the engaging member 6 continues to hold the hook 7 engaged with the striker, and its projection 6a moves from the A position to the C position.

When the door at position C is closed and locked, it cannot be opened without using the key.

To open the door, use the key to store the tumbler 11 into the rotor 3, rotate the rotor 3 to the unlocking position ■, and then rotate it to the opening position I, as described above. Similarly to the operation by the knob 1, the hook is released from the engagement by the engaging element 6 and rotates to the door opening position (2).

When the rotor 3 is in the door opening position I, the lower end of the tumbler insertion groove is blocked by the inner peripheral surface of the outer cylinder 2, as shown in FIG. The movement of the key 12 is restricted and the key 12 cannot be removed from the door opening position I, so the door plate is pulled together with the key 12 to open the door.

As described above, when the key is released, the rotor 3 rotates and returns to the closed door position (2).

During this period, the locus of the engaging element protrusion 6a is displaced to the E-A-B-C position.

As mentioned above, in this case, the hook that engages with the striker is pivotally supported at the rear end of the rotor so as to rotate perpendicular to the axial direction, which has the effect of reducing the protrusion of the hook deep into the box and increasing the effective space. Furthermore, since the rotational direction of the rotor and the hook coincide, the spring that operates the hook to open the door allows the rotor to automatically return to the door-opening position. To provide a sturdy and compact glove box lock which allows an engaging element to move forward and backward in the axial direction of a rotor to be inserted therein and reliably prevents rotation of a hook to an open position.

[Brief explanation of drawings]

Figure 1 is a vertical side view of the embodiment of the present invention, Figures 2 and 3.
The figure is a partially exploded perspective view, and FIG. 6 is an exploded side view of the cam groove 5. 1...knob, 2...outer cylinder, 3...
-0-Yu, 4... Same concave groove, 5... Same cam groove, 6... Engagement element, 6a, 6b...
・Same protrusion, 7...Hook, 7a...Same engagement hole, tail...Wound spring, 8a...Same straight part, 90@000 Riku Ne〇

Claims (1)

[Scope of utility model registration request] It is attached to the glove box door of a car and has a hook that engages with the striker on the box side when the door is closed, and when the door is opened.
In a glove box lock in which a rotor is housed in a cylinder lock outer cylinder so as to rotate between a closed door and a locked position, a striker 15 is engaged with the rear end of the rotor 3 so as to rotate perpendicular to the axial direction of the rotor. A hook 7 is pivotally supported, and an engaging element 6 is biased toward the hook 7 on the side of the rotor 3. When the hook 7 is in the closed state, the engaging element 6 is in the engagement position of the hook. When the rotor 3 is rotated to the door opening position and released, the engaging element 6 is detached from the engaging hole 7a and the hook 7 is wound in the direction of opening the door. A glove box lock characterized in that the rotor 3 is configured to automatically return to the closed door position by the action of a spring 8.