JPH0613953U - Opening / closing mechanism of the glove box lid - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an opening / closing mechanism of a glove box lid capable of making the braked opening speed of the glove box lid as constant as possible. A tip of a rod of a damper device is pivotally supported at a position in the vicinity of a tip portion of a rear surface of a lid of a glove box, the rod is extended in association with an opening operation of the lid, and the damper device is attached to the lid. In the opening / closing mechanism of the glove box lid configured to perform the buffering action at the time of opening, the fully closed position and the fully opened position of the pivot point on the trajectory along which the pivot point of the rod tip moves about the lid hinge. It is characterized in that a pivotal fulcrum of the damper device is provided on a tangent line at an arbitrary point between a position approximately midway from the position and the fully open position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an opening / closing mechanism for a lid of a glove box arranged on an instrument panel of a vehicle.

[0002]

[Prior art]

 An example of a conventional opening / closing device for such a glove box lid is disclosed in Japanese Utility Model Laid-Open No. 58-68353 or Japanese Utility Model Laid-Open No. 58-136844. FIG. 2 shows the conventional example, in which a pair of lid holding arms 3 having an arc shape with one end fixed to a lid 2 of a glove box 1 are arranged. The lid holding arm 3 is adapted to be rotatable with respect to the inner and outer surfaces of the frame 4 through a guide port 5 formed in the frame 4 of the glove box when the lid 2 is opened and closed. It has become.

On the other hand, the lid of the glove box may be provided with a damper device that performs a cushioning action in order to prevent the lid from suddenly opening when opened and an unpleasant impact noise. Many. Such a damper device 6 is disclosed in, for example, Japanese Patent Application Laid-Open No. 58-174038, and as shown in FIG. The tip 7a of the rod 7 of the piston cylinder 8 is pivotally attached to the other end 3b of the lid holding arm 3 as described above. It is supposed to be supported.

In the piston cylinder 8, a piston 11 is slidably contacted in the cylinder, and its tip end is connected to the rod 7. Between the piston 11 and the rear wall of the cylinder 8, there is provided a spring 12 that is compressed at the end when the piston 11 is pushed rearward in the cylinder 8, and even if the piston 11 comes to its rearmost position. A small hole 13 is provided on the end side surface of the cylinder 8 which is not closed from the inside, and the small hole 13 is closed by a thin rubber cylinder 14 fitted to the outer periphery of the cylinder 8 to form an exhaust valve. At the rear end, there is provided a throttle valve 17 which forms a through hole 15 and is screwed with a screw 16, and which adjusts the screwing depth of the screw 16 to increase or decrease the ventilation amount.

When the lid holding arm 3 rotates together with the lid 2, the rod 7 connected to the holding arm 3 receives a pulling force to pull out the piston 11 in the piston cylinder 8 for a predetermined length. , A negative pressure state is formed in the cylinder 8. Therefore, the exhaust valve is closed and only a small amount of air flows into the cylinder 8 through the throttle valve 17, so that the movement of the lid 2 connected to the rod 7 and the holding arm 3 is controlled.

On the other hand, when the rod 7 receives a compressive force, the piston 11 compresses the air in the cylinder 8 and the air is discharged not only from the throttle valve 17 but also from the small hole 13 of the exhaust valve. The return of the cylinder into the cylinder 8 is performed quickly.

[0007]

[Problems to be solved by the device]

 By the way, as shown in FIG. 2, when the lid 2 of the glove box performs the opening operation from the fully closed state to the fully open state, the rotational moment due to the weight of the lid 2 gradually increases. In order to apply the braking at a constant opening speed by the damper device 6, a very large braking force is required in the latter half of the stroke of the rod 7 as compared with the first half.

Therefore, when the damper device 6 having the constant capacity cylinder 8 is used for deceleration operation, if the braking force of the damper device 6 is constant, the latter half of the latter can be set in accordance with the first half of the opening operation. However, there was a problem that the braking force became insufficient, and if it was adjusted to the latter half, the braking force would over-ride and decelerate too much in the first half.

The present invention was devised by focusing on the problems of the damper device, and the glove box lid is set by setting the position of the pivot point of the damper device in a predetermined range in advance. It is an object of the present invention to provide an opening / closing mechanism of a glove box lid capable of keeping the braked opening speed of the vehicle as constant as possible.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, the tip of the rod of the damper device is pivotally supported at a position near the tip of the rear surface of the lid of the globe box, and the rod is interlocked with the opening operation of the lid. On the path of movement of the pivot point of the rod tip with the lid hinge as the center of rotation, by forming a glove box lid opening / closing mechanism that is configured so that the damper device performs a cushioning action when the lid is opened. In the above, the pivotal fulcrum of the damper device is provided on a tangent line at an arbitrary point between the fully opened position and the substantially intermediate position between the fully closed position and the fully opened position of the pivotal fulcrum. It is a thing.

[0011]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention. In FIG. 1, reference numeral 1 is a glove box arranged on an instrument panel of a vehicle or the like, 2 is a lid of the glove box 1, and 6 is a damper device. The tip of the rod 7 of the damper device 6 is pivotally supported at a position near the tip of the rear surface of the lid 2 of the globe box 1.

When the center of rotation of the hinge of the lid 2 is C, the pivot point between the lid 2 and the tip of the rod 7 is B, and the pivot point between the rear end of the damper device 6 and the instrument panel is O, In this embodiment, on the track along which the pivot point B at the tip of the rod 7 moves about the center of rotation C, the intermediate position between the fully closed position B1 and the fully open position B2 of the pivot point B is defined as B3. A pivot point O of the damper device 6 is provided on an extension of a tangent line T at an arbitrary point B4 on the locus between the position B3 and the fully open position B2.

By setting the pivot point O of the damper device 6 in this way, the pivot point B of the rod tip moves from the fully closed position B 1 to the fully closed position B 1 during the opening operation of the lid 2 from the fully closed position to the fully open position. While moving to the intermediate position B3 on the locus, the distance between the pivot point B and the pivot point O of the damper device 6 does not increase so much as compared with the movement amount of the pivot point B. However, while the pivot point B moves from the intermediate position B3 to the fully open position B2, the movement amount of the pivot point B and the distance increase amount between the pivot point B and the pivot point O are almost one pair. It approaches the relationship of 1.

That is, in the first half of the opening operation of the lid 2, the rotational moment due to the own weight of the lid 2 is small, but correspondingly the braking force by the damper device 6 is also small because the amount of extension of the rod 7 is small. On the other hand, on the other hand, in the latter half of the opening operation, as the rotational moment of the lid 2 increases, the extension amount of the rod 7 increases, so that the braking force by the damper device 6 also increases. Therefore, the opening speed of the lid 2 during the opening operation can be made as constant as possible regardless of the change in the rotation moment of the lid 2.

In each of the above-described embodiments, the setting range of the arbitrary point B4 is limited to the fully open position B2 and the intermediate position B3 on the locus, but the intermediate position B3 may be set depending on the design conditions. It is also possible to reduce or expand the setting range between the predetermined position slightly closer to the fully open position B2 or slightly closer to the fully closed position B1 and the fully open position B2. It goes without saying that various modifications are possible without departing from the scope.

[0016]

[Effect of device]

 The present invention is configured as described above, and by setting the position of the pivot point of the damper device within a predetermined range in advance, the rotary moment can be maintained during the opening operation of the glove box lid. It is extremely useful because it can keep the braked opening speed as constant as possible regardless of the increase of the, and can perform a stable cushioning action.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an opening / closing mechanism related to the present public safety.

FIG. 2 is an explanatory view showing a conventional opening / closing device.

FIG. 3 is an explanatory view of a main part showing a configuration example of a damper device.

[Explanation of symbols]

 1 glove box 2 lid 6 damper device 7 rod C center of rotation of lid hinge B pivotal point of rod tip O pivotal point of damper device

Claims (1)

[Scope of utility model registration request] 1. A damper device wherein the tip of a rod is pivotally supported at a position in the vicinity of the tip of the back surface of a lid of a glove box, and the rod is extended in association with the opening operation of the lid, whereby the damper device is provided. Is a glove box lid opening / closing mechanism configured to perform a cushioning action when the lid is opened,
On the locus where the pivot of the rod tip moves about the lid hinge as the center of rotation, the damper is located on a tangent line at an arbitrary point between the fully open position and the intermediate position between the fully closed position and the fully open position of the pivot. An opening / closing mechanism for the glove box lid, characterized in that a pivot point of the device is provided.