JPH0243865B2 - JIDOSHAYODOANOBOSHINSOCHI - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a vibration isolating device for an automobile door, and more particularly, to a vibration isolating device for an automobile door, and more particularly, to a vibration isolating device for an automobile door, which is mainly applied to a portion of an automobile having a back door where the back door engages with the floor of the vehicle body during driving, etc. The present invention relates to a device for preventing vibration.

(Prior Art) FIG. 1 is a perspective view of a main part of a vehicle equipped with a back door 1 rotatably supported by a hinge 2.
FIG. 2 is a sectional view of the main part taken along line A-A in FIG. 1.

In FIG. 2, 3 is the door outer panel of the backdoor 1, 4 is the door inner panel, 5 is the floor panel, 6 is the weather strip, and 7 is the latch of the door lock mechanism.

Conventionally, in order to mainly prevent the back door 1 from swaying when the vehicle runs with the back door 1 in the closed state, a catcher 8 and a striker 9 as shown in FIGS. 2 and 3 have been used. A shaking device was installed between the lower end of the back door 1 remote from the hinge 2 and the rear end of the floor panel 5.

3 is a conceptual diagram showing the manner in which the catcher 8 and the striker 9 engage, as seen from above in FIG. 2, and arrow B indicates the closing direction of the door 1.

In such a conventional vibration isolator, the catcher 8 is provided with a locking part 12 on the inner surface of the base plate 10, which is made of an elastic material such as resin or rubber, and has a pair of vertical walls 11, 11 facing each other. It is set up.

Further, the striker 9 is provided with a locked portion 13 corresponding to the locking portion 12, and its pair of abutting surfaces 14, 14 are connected to the pair of vertical walls 11, 1.
When the back door 1 is closed, the locking part 12 of the catcher 8 attached to the door inner panel 4 is formed in a shape corresponding to the floor panel 5.
The striker 9 is fitted into the locked portion 13 of the striker 9 attached to the corresponding position, and the elasticity of the locking portion 12 allows the two to be closely engaged, thereby reducing vibrations such as relative lateral vibration when the vehicle is running. The plan is to absorb the

In this conventional example, the latch 7 is arranged to protrude between a pair of vertical walls 11, 11 constituting the locking portion 12 of the catcher 8.
When the door is closed, the latch 7 of the door lock mechanism engages with a lock portion 15 formed to connect the pair of contact surfaces 14, 14 of the striker 9.

By the way, as shown in FIG. 3, in the conventional vibration isolator, the locking portion 12 of the catcher 8 has a cross section having a tapered shape 16 that is obliquely tapered so that the width becomes narrower toward the tip end with respect to the door closing direction. The abutting surface 14 of the striker 9 is also formed in a cross-sectional shape having a taper 17 that is obliquely inclined such that the distance becomes narrower toward the door closing direction, corresponding to the taper 16. ,1
7 is intended to improve the engagement between the catcher 8 and the striker 9. That is, at the initial stage of fitting, the gap between both tapers 16 and 17 is made large, so that even if there is a deviation in relative position between the two tapers 16 and 17, the deviation can be absorbed by this gap and the two can be fitted.
In addition, at the end of the mating process, this gap narrows and the two
6 and 17 are properly engaged, and such an effect will hereinafter be referred to as a "wedge effect" in this specification.

However, because the tapers 16 and 17 are formed, when the back door 1 is moved in the direction of the arrow B and the door 1 is attempted to be closed, the striker 9 that comes into contact with the locking portion 12 of the catcher 8 is released. In response to an external force applied to the contact surface 14, a reaction force R in the opening direction of the door 1 acts on the locking portion 12 from the contact surface 14, making it difficult to close the back door 1 smoothly. It had

In order to solve this problem, a vibration isolating device having a structure shown in FIG. 4 has been proposed.

That is, in this device, in order to prevent reaction force from being applied in the door opening direction from the contact surface 14 of the striker 9 when the door is closed, the locking portion 12 of the catcher 8 and the corresponding cover of the striker 9 are provided. The vertical wall 11 and the contact surface 14 of the locking portion 13 are formed to extend parallel to the opening/closing direction of the door 1, respectively.

However, in this device, the reaction force in the door opening direction is not generated due to its structure, but on the other hand, the wedge effect cannot be expected as in the conventional device with the tapered shape shown in Fig. 3. Therefore, the locking portion 12 and the locked portion 13 are required to have considerable precision in order to smoothly engage them.

Therefore, during assembly, adjustment work is required to ensure that the locking portion 12 and the locked portion 13 are in optimal contact with each other, which poses a problem of deteriorating assembly workability. .

Furthermore, after assembly, if the engagement positional relationship between the catcher 8 and the striker 9 becomes as shown in FIG. 5 due to torsional deformation of the door 1 when the door 1 is opened or closed, the locking occurs. part 12 and locked part 1
3, a so-called galling phenomenon (a phenomenon in which the corner part of the tip of the locked part 13 bites into the vertical wall 11 of the locking part 12 and the reaction force in the opening direction becomes excessive) occurs, and the opening/closing feeling of the door 1 is affected. There was a risk that it would deteriorate or become impossible to open and close.

(Objective of the Invention) The present invention solves the problems of the conventional vibration isolating device described above, has a simple structure, has no reaction force in the door opening direction, and provides stable vibration isolation without requiring adjustment work during assembly. vibration performance can be obtained. The purpose of the present invention is to provide a vibration isolating device for automobile doors.

(Structure of the Invention) In order to achieve the above object, the vibration isolating device for an automobile door of the present invention is provided with a catcher on one side of the door and the vehicle body, and a striker on the other side, and the catcher has a predetermined striker. The striker has a locking portion formed with vertical walls facing each other at intervals, and the striker has a locked portion that fits and engages between the pair of vertical walls of the locking portion. for an automobile, wherein the locking part is formed of an elastic body, and the locking part and the locked part engage elastically to prevent the door from swinging in a direction perpendicular to the vertical wall. In the vibration isolator, the vertical wall is formed to extend parallel to the door opening/closing direction, and the contact surface at the tip of the locked part is parallel to the door opening/closing direction, and
The means is such that a cut surface in a direction perpendicular to the vertical wall is formed into a substantially arc shape.

(Effects of the Invention) In the present invention having the above configuration, since the compatible wall of the locking portion of the catcher is formed to extend in a direction parallel to the opening/closing direction of the door, the opening direction when the door is closed is Since no reaction force is generated, the door can be opened and closed extremely smoothly.

In addition, by forming the abutment surface of the locked portion of the striker into a substantially arc-shaped cross section cut in a direction parallel to the door closing direction and orthogonal to the vertical wall, the door is prevented from twisting. Even if the relative position of the locking part and the locked part shifts due to deformation,
When the door is opened and closed, a galling phenomenon in which the tip of the locked part bites into the vertical wall does not occur as in the conventional case, and a good opening/closing feeling can be obtained.

Furthermore, even if the mounting angles of the catcher and striker do not match, the contact surface at the tip of the striker is formed with a substantially arcuate cross section, so the locking part and the locked part will not engage when the door is closed. At the initial stage of mating, the gap between the vertical wall and the abutting surface is large, and as the mating progresses from that state, the gap narrows until they come into contact and the mating is completed. The degree of engagement between the locking part and the locked part is always kept constant,
Stable anti-vibration performance.

Therefore, there is no need for the conventional adjustment work to match the mounting angles of the two during assembly, and the efficiency of assembly is greatly improved.

(Embodiments of the Invention) Preferred embodiments of the present invention will be described below with reference to the drawings.

6 to 8 show an embodiment of the present invention,
In the figure, 8 is the catcher, 9 is the striker, and 10
12 is a base plate of the catcher 8, and 12 is a pair of vertical walls 1 fixed to the base plate 10.
A locking portion made of an elastic body having 1 and 11,
Reference numeral 13 designates a locked portion of the striker 9 on which a pair of contact surfaces 14, 14 that engage with the pair of vertical walls 11, 11 are formed.

In this embodiment, like the conventional example shown in FIG. 2, the catcher 8 is fixed to the lower surface of the door inner panel, and the striker 9 is fixed to the floor panel in a manner corresponding to the mounting position of the catcher 8. The base plate 10 of the catcher 8 has a pair of elongated holes 1 for dimensional adjustment during assembly.
8 and 18 are formed, and a pair of long holes 20 and 20 are also formed in the mounting plates 19 and 19 of the striker 9, respectively, and are fixed to the door inner panel and the floor panel by appropriate means such as bolting.

Further, when the door is closed, the latch of the door lock mechanism (not shown) protrudes downward from between the compatible walls 11 of the catcher 8, and locks the lock portion 15 of the striker 9.
configured to engage.

Therefore, in this embodiment, the pair of vertical walls 11, 11 constituting the locking portion 12 of the catcher 8 is the seventh
It is formed to extend parallel to the door opening/closing direction shown by the arrow in the figure, and the pair of contact surfaces 14, 14 at the tip position of the locked portion 13 that engages with the vertical wall 11 has a cross section thereof. is formed in an arc shape.

In the case of this embodiment, the abutting surfaces 14, 14 have such a structure that the distance between the abutting surfaces 14, 14 becomes narrower in the upper and lower directions in the figure, which is perpendicular to the door closing direction. A taper is formed. this is,
Because the width between the contact surfaces 14 and 14 and the width between the vertical walls 11 and 11 are not constant due to manufacturing errors,
When assembled to the vehicle body and the door, both are moved relative to each other in the vertical direction in the figure, so that a constant fitted state can always be obtained between the two.
By the way, this relative movement is caused by plate 1 during assembly.
This is accomplished by inserting a washer, shim, etc. between the mounting plate 19 and the door inner panel or floor panel.

As described above, in this embodiment, the contact surface 14 is tapered, but since the direction of the taper is perpendicular to the door closing direction, the parallel standing wall 11 and the arc-shaped contact surface are formed in the horizontal section. The relationship with the contact surface 14 is such that a constant state as shown in FIG. 7 is always obtained, and the reaction force due to the taper does not act in a direction that prevents the door from closing.

Therefore, as shown in FIG. 7, if the assembly position of the catcher 8 and the striker 9 is set accurately, it is naturally possible to open and close the door smoothly, and the pair of vertical walls 11, 11 are connected to the door. Since it is formed parallel to the opening/closing direction, the vertical wall 11 engages from the contact surface 14 of the striker 9 when the door is closed.
There is no reaction force in the door opening direction towards
Furthermore, since the contact surface 14 has an arc-shaped cross section,
The corresponding contact surface 14 and the vertical wall 11 have just the optimum degree of engagement, which effectively prevents sideways vibration when the vehicle is running, and does not require unnecessarily large force to open and close the door, compared to the conventional example described above. This allows for smoother opening and closing.

Furthermore, even if the mounting angle between the catcher 8 and the striker 9 becomes slightly misaligned as shown in FIG. 8 for some reason, the striker 9
Since the abutment surface 14 is arcuate, the degree of engagement between the locking part 12 and the locked part 13 is the same as in the normal installation state shown in FIG.
Even if they are formed parallel to each other, there is no risk of galling as in the conventional case, and a good door opening/closing feeling can be obtained, and at the same time, the door can exhibit stable vibration damping performance.

Therefore, during assembly work, there is no need for highly accurate adjustment work to match the mounting angle as in the conventional example, and the ease of assembly work is significantly improved.

In the above embodiment, the catcher 8
Although we have shown an example in which the vibration isolating device consisting of the striker 9 and the striker 9 is installed in the door lock part, it is not limited to this and it is possible to install it in any other location. The striker 9 may be attached to the floor panel 5, and the striker 9 may be attached to the door inner panel 4.

Further, the outer shape of the abutment surface 14 of the striker 9 is not particularly limited as long as the cross section has an arcuate shape, and the contact surface 14 of the present invention can have any shape such as a substantially spherical shape or a substantially cylindrical shape. Various modifications are possible without departing from the gist.

[Brief explanation of the drawing]

Figures 1 to 5 show a conventional automobile door vibration isolator, with Figure 1 being a perspective view of the main part of the back door, Figure 2 being a sectional view of the main part taken along line A-A, and Figure 3 being FIGS. 4 and 5 are explanatory diagrams showing the manner of engagement between a catcher and a striker in a conventional vibration isolator, FIGS. 4 and 5 are explanatory diagrams of other conventional examples, and FIGS. 6 to 8 show an embodiment of the present invention. , FIG. 6 is a perspective view showing the outline of the catcher and the striker, and FIGS. 7 and 8 are explanatory views showing the manner in which the catcher and the striker are engaged with each other. 8... Catcher, 9... Striker, 11
... Standing wall, 12 ... Locking part, 13 ... Locked part,
14...Abutment surface, 15...Lock portion.

Claims (1)

[Scope of Claims] 1. A catcher is provided on one side of the door and the vehicle body, and a striker is provided on the other side, and the catcher has a locking portion in which vertical walls are formed facing each other at a predetermined interval. ,and,
The striker has a locked part that fits and engages between the pair of vertical walls of the locking part, the locking part is formed of an elastic body, and the locking part and the locked part are connected to each other. In the vibration isolator for an automobile, the vertical wall is formed to extend parallel to the door opening/closing direction, and the vertical wall is formed to extend parallel to the door opening/closing direction; An automobile door characterized in that the abutting surface at the tip of the locking part is formed in a shape in which a cut surface in a direction parallel to the door opening/closing direction and perpendicular to the vertical wall has a substantially arc shape. Anti-vibration device.