JPH0737961Y2 - Wedge bumper device for vehicle door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a wedge bumper device for a vehicle door for the purpose of reducing the force applied to the door lock due to vibration during traveling and preventing the door from swinging.

(Prior Art) Conventionally, as a wedge bumper device for a vehicle door, for example, one disclosed in Japanese Utility Model Laid-Open No. 61-192915 is known.

In this conventional device, a dovetail is attached to one of a vehicle body and a door, a wedge bumper and a stopper rubber are attached to the other, and the wedge bumper strokes by contacting the dovetail during the door opening / closing stroke, and the wedge bumper and the stopper when the door is closed. The rubber is arranged via the stopper clearance.

(Problems to be Solved by the Invention) However, such a conventional device has the following problems.

Since the abutting flat surfaces that are in flat contact with each other are formed on the facing surfaces of the tab tail and the wedge bumper, the mounting positions of the dovetail and the wedge bumper are misaligned, or the dovetail and the wedge bumper are different from each other due to variations in the assembly of the vehicle body and the door. If the mounting surfaces are not parallel or are twisted, they will be hit against each other, the anti-sway effect of the door will be poor, and the wedge bumper will be severely worn and the durability will be poor.

If the mounting surfaces of the dovetail and wedge bumper are not parallel or twisted, it is not possible to find planes or lines that overlap each other, so it is not possible to increase the contact area even if the mounting position is adjusted. Can not.

By providing wedge bumper devices at the left and right positions of the door, steadying in the vehicle width direction is achieved when the door is closed, but relative movement is possible along the contact plane, so steadying in the vehicle vertical direction is achieved. There is no effect, and since relative movement is also possible in the vehicle front-rear direction so as to change the interval of the stopper clearance, there is no steadying effect in the vehicle front-rear direction and door vibration is allowed.

(Means for Solving Problems) The present invention is to solve the above problems, that is,
It was made for the purpose of taking measures against mounting surface variations at the time of installation and steady rests at the time of door closing.To achieve this purpose, in the present invention, a dovetail is attached to either the vehicle body or the door, A wedge bumper and a stopper rubber are attached to the other side, and the wedge bumper is supported movably in the door opening / closing stroke direction with respect to the stopper rubber.The wedge bumper strokes by contacting the dovetail during the door opening / closing stroke, and the wedge bumper when the door is closed. In a wedge bumper device for a vehicle door in which a bumper and a stopper rubber are arranged through a stopper clearance, the dovetail and the wedge bumper are opposed to each other in the door opening / closing stroke direction, and the opposing surfaces of the male and female are curved surfaces. The conical abutment surface allows the door opening straw to move in the axial direction of the cone. A bumper side inclined contact surface that is formed in a direction orthogonal to the direction and that is inclined with respect to the door entering direction is formed on the stopper rubber side of the wedge bumper, and the stopper rubber includes a door. A rubber-side inclined contact surface which is in taper contact with the bumper-side inclined contact surface when closed is formed.

(Operation) When the wedge bumper device is attached, one of the dovetail attached to one of the vehicle body and the door and the wedge bumper and the stopper rubber attached to the other are temporarily fixed, and then the door is closed to remove the dovetail and the wedge bumper. The male and female conical abutment surfaces formed on the opposing surfaces of are fitted so as to make curved contact with each other, and finally they are finally tightened for attachment.

Of the vibration inputs in each direction when the door is closed, the vibration restraint is achieved by providing a wedge bumper device at the left and right positions of the door for vibration inputs in the vehicle body direction. With respect to the vibration input in the front-back direction, the wedge bumper does not move with respect to the stopper rubber due to the tapered contact by the bumper side inclined contact surface and the rubber side inclined contact surface, and the curved contact by the male and female conical contact surfaces. Therefore, there is no relative movement due to the displacement between the dovetail and the wedge bumper, and steady rest and prevention of the hit noise of the wedge bumper are achieved.

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

First, the configuration will be described.

As shown in FIG. 2, the wedge bumper device A of the embodiment is provided at the lower left and right sides of a back door 3 (vehicle door) that can be opened and closed with respect to a vehicle body 2 by a hinge 1 provided at an upper end portion. There is.

As shown in FIG. 1, this wedge bumper device A includes a dovetail 4 attached to a vehicle body 2, a wedge bumper 5 attached to a back door 3, and a stopper rubber 6.
And are the main components.

The dovetail 4 is made of rubber and is fixed to the base 7 by baking or the like as shown in FIG.

A male conical contact surface 4a having the same surface as the conical outer surface having the apex at the point O is formed on the surface facing the wedge bumper 5.

Further, as shown in FIG. 4, the base 7 is formed with a bolt hole 7a through which the mounting bolt 8 is inserted, and the reinforcing plate 7b on which the dovetail 4 is baked is reinforced with a beat 7c.
Are formed.

As shown in FIG. 5, the wedge bumper 5 and the stopper rubber 6 are provided in combination between the base 9 and the plate 10. One of the wedge bumpers 5 is made of resin and has a return spring 11 and a door. The stopper rubber 6 is provided so as to be able to stroke in the direction of the arrow, which is the approach direction, and the other stopper rubber 6 is made of rubber and is fixed to the base 9 by bake adhesion or the like.

As shown in FIG. 6, the wedge bumper 5 has a female conical abutment surface 5a having the same surface as the conical outer surface having an apex at the point O on the surface facing the dovetail 4. The cone diameter abutment surface 5a has the axis of the cone as the wedge bumper 5
Are arranged substantially orthogonal to the moving direction (door opening / closing stroke direction), and similarly, the conical contact surface of the dovetail 4 is also arranged.
4a is also arranged with its conical axis oriented in the same direction.
Further, on the stopper rubber 6 side of the wedge bumper 5, a pair of left and right bumper side inclined contact surfaces 5b that are inclined with respect to the door entering direction are formed.

A spring hole 5c is formed on the rear surface side of the wedge bumper 5, and a pair of left and right stroke guide projections 5d is formed on the lower portion of the bumper side inclined contact surface 5b of the wedge bumper 5, and the bottom surface of the wedge bumper 5 is formed. Grease reservoir recess 5e on the side
Are formed.

The stopper rubber 6 is formed with a rubber side inclined contact surface 6b which makes a taper contact with the bumper side inclined contact surface 5b when the door is closed.

A spring hole 6c is formed on the rear surface side of the stopper rubber 6, and a pair of left and right stroke guide grooves 6d are formed on the lower portion of the rubber side inclined contact surface 6b of the stopper rubber 6.

In addition, the base 9 and the plate 10 have a mounting bolt 12
Bolt holes 9a, 10a for inserting the wedge bumper 5 and the stopper rubber 6 are assembled as shown in FIGS. 7 and 8.

Next, the operation will be described.

(A) At the time of mounting the wedge bumper device A At the time of mounting the wedge bumper device A, either one of the dovetail 4 attached to the vehicle body 2 and the wedge bumper 5 and the stopper rubber 6 attached to the back door 3 is temporarily fixed, and then Close the back door 3 and dovetail 4
The male and female conical abutment surfaces 4a and 5a formed on the opposing surfaces of the wedge bumper 5 and the wedge bumper 5 so as to make curved contact with each other,
It is installed by finally tightening.

When the wedge bumper device A is attached, the conical contact surfaces 4a, 5a of the male and female are made to fit so as to make curved contact with each other, and when the mounting positions of the dovetail 4 and the wedge bumper 5 are displaced, curved contact is made. The mounting position is corrected in the direction of (i.e., the conical contact surfaces 4a, 5a are provided such that the conical axis direction is orthogonal to the door opening / closing stroke direction). Even if the mounting position of the vehicle is displaced in the direction orthogonal to the door opening / closing stroke direction, the curved surface can be brought into contact with the dovetail 4 due to variations in the assembly of the vehicle body 2 and the back door 3.
Even when the mounting surfaces of the wedge bumper 5 and the wedge bumper 5 are not parallel or twisted, it is possible to increase the contact area by finding the curved contact portions overlapping each other.

(B) Door closing When closing the back door 3, when the doors are closed, first the male and female conical contact surfaces 4a, 5a come into contact with each other, and then the wedge bumper 5 strokes against the return spring 11 by the door closing force. The bumper side inclined contact surface 5b while absorbing the overstroke due to the excessive door closing force by the deformation of the stopper rubber 6.
Makes taper contact with the rubber-side inclined contact surface 6b.

Since the bumper-side inclined contact surface 5b and the rubber-side inclined contact surface 6b are in tapered contact, the stroke amount at the taper contact surface becomes larger than the overstroke amount at the time of overstroke, and the overstroke is sufficiently stopped. Can be absorbed by deformation of rubber.

The dovetail 4, the wedge bumper 5, and the stopper rubber 6 when the door is closed are provided with a stopper clearance c to allow an overstroke of the wedge bumper 5, as shown in FIGS. 9 and 10. except,
It is in a state of being integrated with the rigid due to mutual contact.

(C) At the time of vibration input When the vehicle is traveling with the back door 3 closed, there is vibration input in each direction to the wedge bumper device A depending on the road surface condition or the traveling condition.

With respect to the vibration input in the vehicle width direction of the vibration input, the steady rest is achieved by providing the wedge bumper device A at the left and right positions of the back door 3.

With respect to the vibration input in the vehicle vertical direction and the vibration input in the vehicle front-rear direction, the wedge bumper 5 does not move with respect to the stopper rubber 6 due to taper contact by the bumper side inclined contact surface 5b and the rubber side inclined contact surface 6b. Also, male and female conical contact surfaces 4a, 5
There is no relative movement due to the displacement of the dovetail 4 and the wedge bumper 5 due to the curved surface contact by a, and the steady rest and the hit noise prevention of the wedge bumper 5 are achieved.

Regarding the vibration input in the vertical direction of the vehicle among the vibration inputs, the curved surface contact between the male and female conical contact surfaces 4a, 5a causes the back door 3 to move in a direction perpendicular to the door entry direction (vehicle vertical direction). The movement is restricted, and the taper contact between the bumper-side inclined contact surface 5b and the rubber-side inclined contact surface 6b prevents the hitting sound of the wedge bumper 5.

Further, among the vibration inputs, the dovetail 4, the wedge bumper 5, and the stopper rubber 6 are integrally in contact with the vibration input in the vehicle front-rear direction in the vehicle front-rear direction. Although it slightly strokes due to the deformability of 4 and the stopper rubber 6, the vibration of the back door 3 is slowed down and small while exhibiting high vibration absorption.

In this way, the steady rest action is exerted on the vibration input in all directions.

(Effects of the Invention) As described above, the wedge bumper device for a vehicle door of the present invention has the effects listed below.

The combination of curved surface contact and taper contact provides a steadying function against vibration input in all directions, so high door vibration prevention and wedge bumper hit noise prevention can be achieved.

The male and female conical contact surfaces are formed on the opposing surfaces of the dovetail and wedge bumper so that the axial direction of the cone is orthogonal to the door opening / closing stroke direction. Easy positioning.

The contact surface between the dovetail and the wedge bumper is a male and female conical contact surface, so the contact area is larger and the surface pressure is lower than that of a wedge bumper device of the same size, which has a flat contact surface. It is possible to improve the sex.

Even though the wedge bumper and the stopper rubber are in contact with each other by the bumper-side inclined contact surface and the rubber-side inclined contact surface, since this contact is a taper contact,
It is possible to secure absorption for the overstroke of the wedge bumper.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wedge bumper device of an embodiment of the present invention, FIG. 2 is a rear perspective view of a vehicle to which the wedge bumper device of the embodiment is applied, and FIG. 3 is a dovetail of the wedge bumper device of the embodiment. FIG. 4 is a perspective view showing a base of the dovetail, FIG. 5 is an exploded perspective view showing a door side member including a wedge bumper and a stopper rubber of the wedge bumper device of the embodiment, and FIG. 6 is a perspective view showing the wedge bumper. Fig. 7 is a plan view showing a door-side member of the wedge bumper device of the embodiment, Fig. 8 is a sectional view taken along the line I-I of Fig. 7, and Fig. 9 is a sectional view showing the wedge bumper device in a door closed state. FIG. 10 and FIG. 10 are plan views showing the wedge bumper device in the door closed state. A ... Wedge bumper device 2 ... Vehicle body 3 ... Back door (door) 4 ... Dovetail 4a ... Conical contact surface 5 ... Wedge bumper 5a ... Conical contact surface 5b ... Bumper side inclined contact surface 6 ... Stopper rubber 6b ... Rubber side inclined contact surface

Claims (1)

[Scope of utility model registration request] 1. A dovetail is attached to either one of a vehicle body and a door, and a wedge bumper and a stopper rubber are attached to the other, and the wedge bumper is supported movably in the door opening / closing stroke direction with respect to the stopper rubber. A wedge bumper device for a vehicle door, wherein the wedge bumper makes a stroke by contacting a dovetail during a door opening / closing stroke, and the wedge bumper and a stopper rubber are arranged via a stopper clearance when the door is closed. Male and female conical abutting surfaces that are in curved contact with each other are formed on the opposing surfaces facing each other in the opening / closing stroke direction, and the axial direction of the cone is oriented in a direction orthogonal to the door opening / closing stroke direction, and the wedge bumper is provided. The stopper rubber side of the The inclined contact surface on the bumper side is formed,
The wedge bumper device for a vehicle door, wherein the stopper rubber is provided with a rubber-side inclined contact surface that is in taper contact with the bumper-side inclined contact surface when the door is closed.