JPS61113977A - Globe box lock apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a glove box locking device for closing a glove box lid.

BACKGROUND OF THE INVENTION Conventional glove box locks shown in Figures 3 to 5 are in practical use (US Pat. No. 2,221
, No. 095). That is, an open-opening glove box 2 is integrally formed on the side of the instrument panel 1, and a striker 3 is fixedly installed in the center of the earthen wall of the glove box 2. A glove box lid 5 is attached to the lower edge of the opening of the glove box 2 via hinges 4, 4, and a casing 6 is formed at the center of the free end of the lid 5. There is. The casing 6 is provided with an open lower,
A latch 9 is rotatably supported on the opening lower portion by a shaft 8. The latch 9 has a lock [t
A claw 10fr engages with the striker 3 at i&[: and is released from the striker 3 at the unlocked position shown in FIG.
, and a guide surface 11 that slides into contact with the striker 3 at the unlocked position is formed at a portion facing the claw 10. A return spring 12 is wound around the shaft 8, and the latch 9 is attached to the return spring 12.
is biased in the unlock direction (arrow A direction). On the other hand, a first set spring 13 and a sleeve 14 that comes into elastic contact with the first set spring 13 and is slidable are fitted into the casing 6.

The sleeve 14 has a latch 9 protruding from the opening lower part.
A raised portion 1 that abuts a base portion 15 formed at the lower end of the
6 is formed. Further, inside the casing 6, a second set spring 17 and a second set spring 17 are provided.
A resiliently contacting cylinder 18 and a slidable cylinder 18 are fitted in this order, and a protrusion 19 is formed on the surface facing the sleeve 14 of the cylinder 18 .

In such a configuration, when the lid 5 is closed,
As shown in FIG. 4, the sleeve 14 is biased by the first set spring 13, and the raised portion 16t
The launch 90 is stationary at a position where it is in contact with the base portion 15. Therefore, when the latch 9 is rotated against the return spring 12, the latch 9 becomes a locked position in which the claw 10 is engaged with the striker 3, and the lid 5 is maintained in the closed state.

Next, the glove box lid 5 is opened (at this time, as shown in FIG. 5, the cylinder 18 is pressed against the second set spring 17 to displace the casing 6 inward).

As a result, the protrusion 19 presses against the sleeve 14, and the cylinder 1.8, which is subsequently pressed, presses the sleeve 14 against the sleeve 14.
slides against the first set spring 13.

When the sleeve 14 comes into contact with the inner end wall 6a of the casing 6, the raised portion 16 is spaced apart from the base portion 15, and the latch 9 is moved in the unlock direction (indicated by the arrow) by the return spring 12 without losing the support provided by the raised portion 16. A direction) K
Rotate. Due to this, the claw 10 is separated from the striker 3, and the guide surface 11 is separated from the return spring 12.
It comes into sliding contact with the striker 3 due to its restoring force. Therefore, a stress (indicated by the arrow in FIG. 5) is generated in the latch 9 in the same direction as the opening direction of the lid 5 (indicated by the arrow in FIGS. 3 and 5). Therefore, the lid 5 starts to open due to this stress, and thereafter the lid 5 rotates downward due to its own weight.

Problems to be Solved by the Invention However, in such a conventional structure, as clearly shown in FIG. In order to reduce the frictional resistance of the abutting surface, the sleeve is formed along the direction of movement of the sleeve, as emphasis is placed on operability during operation. Therefore, when a forward load is applied to the sleeve 14 or cylinder 1B due to inertia during a frontal collision of a vehicle, for example, the sleeve 1
4 slides until it comes into contact with the inner end 1i6a of the casing 6, and the latch 9 may lose its support from the protrusion 16 of the sleeve 14 and rotate in the unlocking direction. Therefore, if a secondary rearward impact were applied to the glove box lid 5 in this state, the lid 5 would open unexpectedly, and there was a risk that the documents and the like stored in the glove box 2 would be scattered.

The present invention has been made in view of such conventional points, and by creating a required resistance force on the abutting surfaces of the sleeve and latch when the sleeve slides, it is possible to prevent unexpected forces caused by inertia, etc. To provide a glove box lock device that prevents a glove box lid from opening.

Means for Solving the Problems In order to solve all of the above problems, the present invention provides a glove box lid that is pivotally supported on the glove box lid and moves from a locked position where it engages with a predetermined striker to an unlocked position where it is released from the striker. a rotatable latch; a sleeve slidably fitted into a casing formed on the glove box lid and abutting the latch to support the latch in a lock position; and a cylinder that presses and displaces the latch in the anti-latch abutting direction against a spring that biases the latch and allows the latch to rotate in the unlocking direction. , an oblique braking surface is formed that is displaced at a required angle with respect to the direction in which the sleeve moves.

In operation, the latch is thus supported in a locking position by the sleeve and engages a predetermined striker to close the glove box lid. If the vehicle collides head-on in this state, a forward load is generated on the sleeve or cylinder due to inertia. However, since a diagonal braking surface is formed on the surface where the latch and the sleeve come into contact with each other by a required angle with respect to the direction of movement of the sleeve, a drag force is generated on the surface where the sleeve comes into contact with the sleeve. suppress. Therefore, the sleeve does not slide and is positioned in the locked position supporting the latch, thereby preventing the glove box lid from opening unexpectedly.

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

In other words, as shown in Figure 3, 5K, glow j'gi, <
I) 7)” to 5!, ey-)4.4FC-cT*f!
15 is pivoted to the glove box 2. At the center of the free end of the glove box lid 5, a casing 6 is provided which projects into the glove box 2, as shown in FIG. An opening lower is provided on the upper surface of the casing 6, and a latch 9 is rotatably supported on the opening lower by a shaft 8. The latch 9 has a pawl 10 and a guide surface 1 disposed opposite the pawl 10.
1 is provided. In this latch 9, the claw 10 is released from the striker 3 from the lock position (FIG. 1) where the claw 1Ot is engaged with the striker 3 fixed to the glove box 2, and the guide surface 11 comes into sliding contact with the striker 3. It is rotatable to the unlocked position (Fig. 5). A return spring 12 is wound around the shaft 8, and the latch 9
is urged in the unlock direction (direction of arrow A) by this return spring 12. On the other hand, inside the casing 6, one end is connected to an inner end wall 6a0 of the casing 6.
, T□I-71 The sleeve 14 is provided with a raised portion 16 that protrudes from the opening lower portion and supports the latch 9 in the locked position. The raised portion 16 has an angle θ with respect to the movable direction of the sleeve 14 (chain m7) as shown in FIG.
An oblique braking surface 21 is formed with the inner end of the glove box 2 facing downward, and a braking surface 22 having a similar inclination angle is also formed on the base portion 15 of the latch 90 with which this raised portion 16 comes into contact. is formed.

Furthermore, a second set spring 17 and a slidable cylinder 18 that comes into elastic contact with the second set spring 17 are fitted in the casing 6 in order.
A protrusion 19 is formed on the surface of the sleeve 8 facing the sleeve 14.

In this embodiment with the above configuration, when the lid 5 is closed, the sleeve 1 is closed, as shown in FIG.
4 is biased by the first set spring 13 to bring the braking surface 21 of the raised portion 16 into contact with the braking surface 22 of the base portion 15.
It is stationary at the position where it is in contact with. Therefore latch 9
rotates against the return spring 12 and is supported in the locked position where the claw 10 gold striker 3 is engaged, thereby maintaining the closed state of the lid 5.

When the glove box lid 5 is thus closed and an impact force F is applied to the lid 5 due to a frontal collision of the vehicle, the sleeve 14 will be moved due to inertia at that time.
As shown in FIG. 2, a forward load F' is received at 5. Here, the braking surface 21.22 for the movable direction of the θ sleeve 14 is
, Q': Resistance force in the movement direction of the sleeve 14 caused by the braking surfaces 21 and 22, P: Movement (force, P' Reaction force of P (=P), )L: Frictional force of both splitting surfaces 21.22, Q::P'house θblood θ=P morning θ5IIIθ=25 stones 2θ
. . ■ As is clear from this equation 0, the sleeve 14 can obtain a resistance of 1 to 20 due to the oblique braking surface 21. Therefore, the sleeve 14 is
Resisting the forward load F' with the braking force Q (S7・2 qin 2 o+ )L...curve ■) which is the sum of the drag force Q'K and the friction force R of both split surfaces 21 and 22, In other words, the drag force Q can be increased by forming the oblique braking surfaces 21,22. Therefore, the sleeve 14 does not easily slide even when subjected to the forward-facing load F', and maintains the locked state in which the latch 9 is fully supported, thereby preventing the glove box lid 5 from being opened unexpectedly. .

When opening the glove box lid 5, -th2
If the force of θ+R or more is applied to the cylinder 1st - presser, 9 cylinders I
The J7 sleeve 18 slides and comes into pressure contact with the sleeve 7"14, so that the sleeve 14 slides against the first set spring 13 and opens the lid 5 in the same way as described in ##. In addition, the drag force q is expressed as
It is important to set an appropriate value for the sleeve 14 by appropriately setting the value.

DETAILED DESCRIPTION OF THE INVENTION As described in the detailed description of the invention, the present invention provides a latch and a sleeve that engages a predetermined striker and supports the latch in a locking position. A structure that forms a diagonal braking surface. Therefore, in addition to the frictional resistance with the latch, the sleeve can obtain a braking force due to the drag force produced by providing the slanted braking surface. Therefore, even if a forward load is applied to the sleeve due to inertia during a frontal collision, for example, the sleeve remains in the locked position without moving, thereby reliably preventing the glove box lid from being opened unexpectedly.

[Brief explanation of the drawing]

Fig. 1 is a sectional view corresponding to Fig. 3 - 1v Iwao showing one embodiment of the present invention, Fig. 2 is an explanatory diagram showing the operation of the same embodiment, and Fig. 3 is an external view of the glove box. The perspective view, FIG. 4, corresponds to the line IV-IV in FIG. 3. 1: A cross-sectional view showing a conventional glove box locking device. FIG. 5 is a cross-sectional view showing the operation of a conventional glove box locking device. 3... Striker, 5... Glove box lid, 6... Casing, 8... Shaft, 9... Latch,
13... First set spring, 14... Sleeve, 18... Cylinder, 21.22... Braking surface.

Claims (1)

[Claims] 1. A latch that is pivotally supported on the glove box lid and is rotatable from a locked position where it engages with a predetermined striker to an unlocked position where it is released from the striker, and a latch that slides within a casing formed on the glove box lid. a sleeve that is freely fitted and abuts against the latch to support the latch in the lock position; and a sleeve that is slid against a spring that urges the latch to the latch contact position, and the sleeve is slid in the unlock direction of the latch. A glove box having a structure having a cylinder that allows the latch and the sleeve to rotate, wherein an oblique braking surface is formed on both the contact surfaces of the latch and the sleeve to be displaced at a required angle with respect to the direction of movement of the sleeve. locking device.