JPS6223975Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a locking mechanism for a grab door.

As a locking mechanism for a grab door that is pivotally attached to an instrument panel (installation panel) inside the driver's seat of a car, a lock bar that slides up and down within a main body attached to the grab door by rotating a manual handle; A locking mechanism is widely used in which a striker fixed to the frame of the automobile is engaged and locked in a space formed by a hook protruding from the main body.

By the way, in order to easily engage the striker in the space, it is necessary that the interval between the spaces be larger than the outer diameter of the striker. On the other hand,
If the distance is larger than the outer diameter of the striker, the lock bar and the hook can move relative to the engaged striker, so the glove door will not swing due to vibrations generated when the vehicle is running. , causing rattling noise.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a locking mechanism that facilitates engagement of the striker and prevents the glove door from emitting noise during travel.

According to the grab door lock mechanism of the present invention, the hook is provided with a groove that extends into the space, and a spring is disposed within the groove. The spring cooperates with the lock bar to clamp the striker in engagement.

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

As shown in FIGS. 1 and 2, the locking mechanism of the present invention includes a main body 12 attached to a glove door 10.
A striker 18 is installed in the space formed by the lock bar 14 and the hook 16, which are supported by the lock bar 14 and move up and down.
It is engaged and locked.

The glove door 10 is pivotally connected to an instrument panel (not shown) at its lower end. Main body 1 attached to this grab door 10 and moving together with this grab door 10
2 is a bottomed rectangular tube with a substantially square horizontal cross section, and a hook 16 is integrally provided on one wall 20 of the tube. In the center of the wall 20 is a long hole-shaped notch 2.
2 is provided, and a manual handle 2 is provided in this notch 22.
A fourth pawl 25 rotates together with the manual handle 24 and is arranged to be movable in the vertical direction.

The lock bar 14 has a vertically movable supporting portion 15 whose horizontal cross-section is substantially square, whose vibrations in the front and back and left and right directions are restricted by the four walls of the main body 12, and a side surface facing the wall 20. 26 has a recess 30 in the center thereof for receiving the pawl 25. At the upper end of the lock bar 14, there is a side surface 26 located behind the side surface 26 of the lock bar 14 facing the wall 20.
7, a curved surface 28 is formed such that the distance from the lower end of the support part 15 decreases as it approaches the rear side surface 27, and in the center of the side surface 27, the support part 15
A groove 29 is formed that spans the lower end of. By providing the curved surface 28 and the recess 30, when the glove door is closed, when the lock bar 14 is pushed toward the striker 18, the striker pushes the lock bar down, thus causing the manual handle to turn. It can be brought into a locked state without any movement. The groove 29 and the main body 1
A coil spring 32 is disposed between the bottom wall 21 of the lock bar 14 and the bottom wall 21 of the lock bar 14, and biases the lock bar 14 upward. Therefore, the upward movement of the lock bar 14 is limited to the recess 3.
0 comes into contact with the pawl 25 of the manual handle 24, and the pawl 25 comes into contact with the upper wall surface of the notch 22, thereby preventing the rotation. In this state, the dimensions of each part are determined so that the upper end of the lock bar 14 is located corresponding to the upper end of the hook 16.

As shown in FIG. 2, the hook 16 has a substantially C-shaped vertical section, and a groove 34 extending over the entire width _W1 of the hook 16 is provided on the side surface 17 facing the lock bar 14. Preferably, the hook 16 is formed as shown in FIG. That is, the center portion 37 of the partial piece 36 located above the groove 34 is connected to the side surface 26 of the lock bar 14.
The side surface of the partial piece 38 located below the groove 34 faces the lock bar 1 with a gap 100 therebetween.
4, and among the partial pieces 36 located above the groove 34, side portions 39 and 40 on both sides of the central portion 37 protrude l ₁ from the side surface 17. On the other hand, the width of the lock bar 14
W ₂ is formed to be slightly smaller than the spacing between the side parts 39 and 40, so that the upper end of the lock bar 14 is introduced between the side parts 39 and 40. When formed in this manner, the lock bar 14 is restrained by the side portions 39 and 40, so that the lock bar 14 does not swing in the width direction A, and also swings in the direction B perpendicular to the width direction, causing the hook side surface 17 and the lock bar 1 to swing out.
Even if a gap is created between the side portion 26 of the side portion 3
9 and 40 will resist the striker 18 from coming off, improving the reliability of the lock. As mentioned above, the support part 1 of the lock bar 14
5 surrounded by the four walls of the main body 12,
Even if it is formed so that it does not swing left and right, clearance is actually required for the support part 15 to move up and down, and manufacturing errors are added.
Considerable wobbling occurs at the upper end of the lock bar 14. Such deflection is effectively suppressed by the side portions 37, 39, 40.

As a result of providing the groove 34 in the hook 16, when the lock bar 14 protrudes upward, the side surface 26 of the lock bar 14 and the side surface 17 of the hook 16 come into contact, and the groove 34 becomes a space with both widthwise ends open. . In the locked state, there is one striker in this space.
8 is located. In order to easily engage this striker 18 in the space, the depth D of the groove 34 must be larger than the outer diameter d of the striker 18,
The above-mentioned problem occurred.

In the present invention, a groove 42 is formed from the side surface of the hook 16 opposite to the side surface 17 facing the lock bar 14 and extends over the entire length of the hook in the vertical direction, and is connected to the space, and a spring 44 is disposed in this groove 42. ing. The groove 42 is formed such that the distance l ₂ from the bottom surface 43 to the side surface 17 is smaller than the outer diameter d of the striker 18.

The spring 44 has one end 4 as shown in FIG.
6 is brought into contact with the ceiling wall 23 of the manual handle 24,
After being wound into a coil, the central portion 48 rises into the groove 42 of the hook 16 and abuts the bottom surface 43 of this groove 42, and the other end 47 of the spring abuts the hook 16. has been done. The structure of this spring and the structure in which the distance l ₂ from the bottom surface 43 of the groove 42 to the side surface 17 is smaller than the outer diameter d of the striker 18 combine to cause the striker 18 in the engaged state to move as shown in FIG. on the side 26 of the lock bar 14.
and the center portion 48 of the spring 44. According to the spring 44 of this example, the spring 44 urges the manual handle 24 counterclockwise in FIG. 2 and also clamps the striker 18, which is preferable from the viewpoint of reducing the number of parts and ease of assembly.
However, the present invention can be implemented even if the spring that biases the manual handle 24 in the counterclockwise direction and the spring that clamps the striker 18 are provided separately.

A shaft 50 inserted through the coil portions 49, 49 of the spring 44 is rotatably supported on one side by a pair of bearings 52 provided on the main body 12, and on the other hand,
Both ends thereof are fixed to a pair of brackets 54 provided on the manual handle 24. As a result, the manual handle 24 is rotatable about the axis 50.

The striker 18 is supported on both sides and fixed to the frame 56 of the automobile. Striker 1
8 may be fixed to any member within the glove box covered by the glove door 10, such as a partition plate that partitions the glove box to the outside. In the present invention, the striker 18 is fixed to the frame in this way.

The example shown in FIG. 4 is provided with a cylinder lock 60, and when the cylinder lock 60 is engaged with a key, the lock bar 14 does not move up or down even if the manual handle 24 is turned, and the glove door cannot be opened. It is something. Slits 62 and 64 extending over a certain vertical range are provided horizontally through the main body 12 and the lock bar 14, respectively, and one end 6 of an actuating lever 66 extends horizontally through the slits.
8, the crank 70 of the cylinder lock 60 is engaged. The other end 69 of the actuation lever 66 is engaged with the pawl 25 of the manual handle 24 . In the above example, the pawl 25 was provided at a position corresponding to the recess provided in the center of the lock bar 14, but in this example, the pawl 25 is provided at a position outside the lock bar 14 and the main body 12. The claws are also longer than the claws in the previous example. When the key is inserted into the cylinder lock 60 and the rotor 72 is turned clockwise when viewed from the front, the crank 70 is in the position shown by the imaginary line in the figure, and the operating lever 66
The free end 67 of comes off the pawl 25. Therefore, even when the manual handle 24 is rotated, the pawl 25 and the operating lever 60 do not engage with each other, so the lock bar 14 is held in an upwardly protruding state by the spring 32, and the glove door does not open. The structure in which the striker 18 is held between the spring 44 and the lock bar 14 is the same in this example.

According to the lock mechanism of the present invention, in the locked state, the striker is held between the lock bar and the spring, thereby preventing the lock bar and the hook from moving relative to the striker. Therefore, the grab door will not rattle while the car is running.

[Brief explanation of drawings]

Fig. 1 is a front view of the locking mechanism of the present invention, Fig. 2 is an enlarged sectional view taken along line 2-2 in Fig. 1, Fig. 3 is a sectional view taken along line 3-3 in Fig. 2, and Fig. 4 is a sectional view taken along line 3-3 of Fig. 2. 3 is a cross-sectional view taken approximately along line 4--4 in FIG. 2, showing another example of the locking mechanism of FIG. 10: Glove door, 12: Main body, 14: Lock bar, 16: Hook, 18: Striker, 42:
Groove, 44: Spring, 60: Cylinder lock.

Claims (1)

[Scope of utility model registration request] A grab door lock in which a striker fixed to the automobile frame is engaged in a space formed by a lock bar that slides and moves up and down within a main body attached to the grab door and a hook protruding from the main body. A locking mechanism for a glove door, the mechanism comprising: a groove provided in the hook and connected to the space; and a spring disposed in the groove and clamping the engaged striker in cooperation with the lock bar. .