JPH0732217Y2 - Elastic holder for lower radiator support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an elastic holder for supporting a lower part of a radiator of an automobile.

[Prior Art] As a radiator device for an automobile, one having a structure as shown in FIGS. 5 and 6 is provided. This radiator device is related to Japanese Utility Model Laid-Open No. 60-100218, and has a substrate portion 100 which is a part of a vehicle body, a radiator main body 101 having a heat exchange function, a substrate portion 100 and a radiator main body 101.
And an elastic holder 102 that elastically supports the radiator main body 101 to the substrate portion 100 by interposing between the elastic holder 102 and the radiator main body 101.

This elastic retainer 102 has a radiator main body 1 as shown in FIG.
It is attached to 01, and as shown in FIG. 6, an inner metal fitting 103 having a central hole as a screw hole, an outer metal fitting 104, and an inner metal fitting 103.
And an elastic rubber portion 105 interposed between the outer metal member 104 and the outer metal member 104. Then, the bolt 106 passing through the through hole 100a of the board portion 100 is screwed into the screw hole of the inner metal member 103, whereby the radiator main body 101 is attached to the board portion 100.

In this radiator device, since the bolt 106 is screwed into the screw hole of the inner metal fitting 103, even if an external force acts on the radiator main body 101, the radiator main body 101 does not come off from the board portion 100. However, the bolts 106 have to be screwed into the screw holes of the inner metal fitting 103 one by one, and therefore, the improvement of the mounting workability has been demanded.

[Problems to be Solved by the Invention] An object of the present invention is to provide an elastic holder for supporting the lower part of a radiator, which prevents the lower part of the radiator from coming off and improves the mountability of the radiator.

[Means for Solving the Problems] An elastic holder for supporting a radiator lower portion according to the present invention comprises a base portion having a holding hole which is a part of a vehicle body, and a radiator lower portion having a supporting shaft portion protruding downward. And an elastic holder for elastically supporting the radiator on the substrate portion, the elastic holder being a cylindrical body having a central hole into which the supporting shaft portion of the radiator is inserted and held. An inner member made of a rigid material, which is formed of a holding flange portion that holds the lower portion of the radiator integrally formed above the tubular body, and a predetermined gap outside the tubular body of the inner member. An insertion shaft portion which is disposed at a distance from each other and is inserted into the holding hole of the base plate portion and has a retaining projection on the outer peripheral surface, and is integrally formed above the insertion shaft portion, and the holding flange portion of the inner member. Is located below and is locked to the upper surface of the board An outer member formed of a rigid material divided into a plurality of pieces in the circumferential direction, and an inner member and an outer member that are interposed between the inner member and the outer member. And an elastic rubber part to be connected.

The most significant feature of the elastic holder for supporting the lower part of the radiator of the present invention is that the inner member and the outer member both have a tubular portion and a flange portion integrally formed at the upper end thereof, and are made of a rigid material, It has rigidity. As the rigid material, for example, a synthetic resin material or a metal material can be used.

The inner member is composed of a tubular body having a central hole into which the support shaft portion of the radiator is inserted and held, and a holding flange portion integrally formed above the tubular body and holding a lower portion of the radiator. , Made of a rigid material. Rubbing made of rubber may be formed on the inner peripheral surface of the tubular body forming the central hole. The rubber unevenness closely holds the support shaft portion of the radiator inserted in the central hole of the tubular body, and is advantageous for supporting the support shaft portion and thus the radiator.

The outer member is disposed outside the tubular body of the inner member at a predetermined interval and is inserted into the holding hole of the base plate portion, and has an insertion shaft portion having a retaining protrusion on the outer peripheral surface and is integrated above the insertion shaft portion. Formed of a rigid material that is divided into a plurality of pieces in the circumferential direction and that is formed below the holding flange portion of the inner member and that is locked to the upper surface of the substrate portion. . The outer member is arranged coaxially with the inner member, outside the inner member and axially below. Since the outer member is divided into a plurality of pieces in the circumferential direction, the insertion shaft portion can be compressed in the axial center direction. For this reason,
Even if the retaining projection is present on the outer peripheral surface of the insertion shaft, the insertion shaft can be easily inserted into the holding hole of the substrate.

The retaining projection of the insertion shaft portion of the outer member can be provided at a portion that comes into contact with the other side surface of the substrate portion that forms the holding hole. A plurality of the retaining protrusions may be intermittently arranged at a predetermined interval.

The elastic rubber portion is interposed between the inner member and the outer member and connects the inner member and the outer member. In order to improve this spring characteristic, the elastic rubber portion can be configured to have holes and slits extending in the axial direction of the inner member and the outer member at symmetrical positions with respect to the inner member in the cross sectional view.

[Operation] A typical usage of the radiator lower supporting elastic holder according to the present invention will be described. That is, the support shaft portion of the radiator lower portion is inserted into the central hole of the tubular body of the inner member of the elastic holder, and the insertion shaft portion of the outer member of the elastic holder is a part of the vehicle body. Press-fit into the holding hole.

Then, the lower portion of the radiator is held in contact with the holding flange portion of the inner member, and the locking flange portion of the outer member of the elastic holder is held on the upper surface of the substrate portion. Further, since the retaining projection of the insertion shaft portion engages with one side surface of the substrate portion forming the holding hole, the elastic holder does not come off from the holding hole of the substrate portion, and consequently the lower part of the radiator is the holding hole of the substrate portion. Can be prevented from coming off.

In the state where the lower part of the radiator is attached to the base plate portion via the elastic holder as described above, the elastic rubber portion of the elastic holder performs a buffering action when external force or vibration acts on the radiator.

[Advantage of the Invention] As described above, in the radiator lower supporting elastic holder of the present invention, since the retaining shaft is formed on the insertion shaft portion of the outer member thereof, it is possible to prevent an external force from acting on the radiator. However, since the retaining protrusion is in contact with the other side surface of the substrate portion forming the holding hole, the elastic holder does not disengage from the holding hole of the substrate portion, and therefore it is effective for preventing the lower portion of the radiator from coming off from the substrate portion. .

Moreover, in the elastic holder for supporting the lower part of the radiator of the present invention,
Even if the outer member is made of a rigid material, it is composed of a plurality of members arranged at a predetermined distance along the circumferential direction on the outer side of the inner member. When the elastic holder is press-fitted into and attached to the substrate portion, the shaft portion of the outer member is likely to contract in the circumferential direction. Therefore, the shaft portion of the outer member is easily press-fitted into the holding hole of the substrate portion, and the mountability can be improved.

Further, when a large horizontal force is applied to the radiator with respect to the vehicle, the elastic comb portion is compressed between the outer peripheral surface of the tubular member of the inner member and the inner peripheral surface of the insertion shaft portion of the outer member. However, since the portions that compress the elastic rubber portion are planar such as the outer peripheral surface and the inner peripheral surface, respectively, it is possible to make a wide area, and the load per unit area acting on the elastic rubber portion can be reduced accordingly.

Similarly, when a large vertical force acts on the radiator with respect to the vehicle, the elastic rubber portion is compressed between the lower surface of the holding flange portion of the inner member and the upper surface of the locking flange portion of the outer member, Since the portions that compress the elastic rubber portion are planar such as the lower surface and the upper surface, respectively, the area can be made large and the load per unit area acting on the elastic rubber portion can be reduced accordingly.

In this way, even if a large force acts in the horizontal direction and the vertical direction, the radiator can be held reliably and in a state in which a large load does not act on the elastic rubber portion.

[Embodiment] FIGS. 1 to 4 show an embodiment of an elastic holder for supporting a lower portion of a radiator according to the present invention.

An elastic holder for supporting the lower part of the radiator of this embodiment (hereinafter,
For the sake of explanation, this is called an elastic holder. 3), as shown in FIG. 3, is composed of an inner member 4 made of a rigid material, an outer member 5 made of a rigid material, and an elastic rubber portion 6. The elastic holder 3 is interposed between a plate-shaped base plate portion 1 (see FIG. 4) which is welded to a vehicle body and becomes a part of the body, and a support shaft portion 20 which protrudes to a lower portion of the radiator 2, and is disposed in the radiator. 2 The lower part is elastically supported.

The board portion 1 has a holding hole 10 in a penetrating state, and is specifically attached to a cross member of a vehicle body.

The radiator 2 functions as a heat exchanger for cooling the cooling water from the water-cooled engine, as in the conventional case.

The inner member 4 includes a metal tubular body 42 having a central hole into which the support shaft portion 20 below the radiator 2 is inserted and held, and a metal holding flange portion 43 integrated with the tubular body 42. Are formed from. The inner peripheral surface of the tubular body 42 of the inner member 4 is covered with a covering rubber portion 45 that is integral with the elastic rubber portion 6, and the lower surface of the holding flange portion 43 of the inner member 4 is integral with the elastic rubber portion 6. The covering rubber portion 45 is covered. The coated rubber part
A protrusion 44 that is continuous in a ring shape in the circumferential direction is formed on the 45.

As shown in FIG. 1 and FIG. 2, the outer member 5 is composed of a plurality of outer members 5 which are arranged outside the inner member 4 along the circumferential direction at a predetermined interval 59. The size L of the predetermined interval 59 is
About 3-5 mm is desirable. The outer member 5 is made of nylon 66 resin containing glass fiber and has a locking flange portion 50.
And the insertion shaft portion 51. As shown in FIG. 3, the locking flange portion 50 has an outer diameter D1 larger than the inner diameter d (see FIG. 2) of the holding hole 10 of the base plate portion 1. The insertion shaft portion 51 is a hollow cylindrical body that protrudes from the center of the locking flange portion 50 and is inserted into the holding hole 10 of the substrate portion 1. The insertion shaft portion 51 has, on its outer peripheral portion, a retaining projection 53 having an outer peripheral diameter D2 larger than the inner peripheral diameter d of the holding hole 10.

As shown in FIG. 2, the retaining protrusion 53 is formed along the circumferential direction, is substantially perpendicular to the central axis 54 of the outer member 5, and is larger in outer diameter D2 than the inner diameter of the holding hole 10. And an annular vertical surface 530, and a circular truncated conical outer surface 531 whose diameter decreases from the outer peripheral edge of the vertical surface 530 toward the tip in the axial direction.
And are formed by.

The elastic rubber portion 6 is interposed between the inner member 4 and the outer member 5 and connects the inner member 4 and the outer member 5 by vulcanization adhesion. As shown in FIG. 3, the upper surface portion 60 and the lower surface portion 61 of the elastic rubber portion 6 are formed so as to be inclined upward toward the inner member 4. The elastic rubber portion 6 is formed continuously around the entire circumference of the inner member 4 and the outer member 5.

In this embodiment, as shown in FIG. 4, the insertion shaft portion 51 of the outer member 5 of the elastic holder 3 is press-fitted into the holding hole 10 of the base plate portion 1 which is a part of the vehicle body and the lower portion of the radiator 2 is inserted. The support shaft portion 20 protruding inward is press-fitted into the central hole of the cylindrical body of the inner member 4.

At this time, in the elastic holder 3 of the present embodiment, the outer member 5 is
The inner member 4 is composed of a plurality of members arranged in the circumferential direction outside the inner member 4 with a predetermined gap 59 (dimension L). For this reason,
When the insertion shaft portion 51 of the outer member 5 is press-fitted into the holding hole 10 of the substrate portion 1 to attach the elastic holder 3 to the substrate portion 1, even if the outer member 5 has rigidity, the shaft portion 51 is Since it is easy to shrink in the circumferential direction, it is easy to press fit.

In the state where the outer member 5 of the elastic holder 3 is press-fitted into the holding hole 10 of the base plate portion 1 as described above, the locking flange portion 50 is placed on the base plate portion 1 as shown in FIGS. At the same time, the annular vertical surface 530 of the retaining projection 53 is
Faces the peripheral edge portion 10a. When the support shaft portion 20 of the radiator 2 is inserted into the central hole of the inner member 4 as described above,
The protrusion 44 of the inner member 4 is pressed against the outer peripheral portion of the support shaft portion 20.

When the radiator 2 is attached to the substrate portion 1 via the elastic holder 3 in this manner, the strength of the elastic rubber portion 6 can be increased by the inner member 4 and the outer member 5 having rigidity, and the external force or vibration can be increased. Even if the radiator 2 displaces due to displacement due to, for example, the elastic holder 3 does not come off from the holding hole 10 of the substrate portion 1 due to the retaining projection 53 of the outer member 5 of the elastic holder 3.

When the radiator 2 is displaced as described above and an external force is applied to the inner member 4 and the outer member 5 in the axial direction, the radial direction, and the diagonal direction, the inner member 4 and the outer member 5 made of a rigid material are separated from each other. In the meantime, the elastic rubber portion 6 itself having increased strength is elastically deformed, whereby the displacement of the radiator 2 can be absorbed and alleviated. Further, the elastic rubber portion 6
When the elastic deformation of is large, it can be restricted by the inner member 4 and the outer member 5.

Particularly, in this embodiment, since the ring-shaped protrusion 44 of the inner member 4 is in close contact with the entire peripheral portion of the support shaft portion 20 below the radiator 2,
The shift movement of the radiator 2 can be effectively suppressed.

A hole 43a is formed in the flange portion 43 of the inner member 4. This hole 43a is for holding the inner member 4 in a predetermined position in the cavity of the molding die by fitting the tip of the pin of the molding die when molding the elastic rubber portion 6.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a bottom view of the elastic holder. FIG. 2 is a side view of the elastic holder, FIG. 3 is a vertical cross-sectional view of the elastic holder, and FIG. 4 is a side view showing a state in which the lower portion of the radiator is attached to the substrate part in a partial vertical section. It is a figure. 5 and 6 show a conventional technique, and FIG. 5 is an exploded perspective view of an elastic holder,
FIG. 6 is a vertical sectional view of the elastic holder. In the figure, 1 is a substrate part, 2 is a radiator, 3 is an elastic holder,
4 is an inner member, 5 is an outer member, 50 is a locking flange portion, 51
Is an insertion shaft portion, 53 is a retaining projection, and 6 is an elastic rubber portion.

Claims (1)

[Scope of utility model registration request] 1. An elastic holder that is interposed between a base plate portion having a holding hole which is a part of a vehicle body and a radiator lower part having a support shaft portion protruding downward to elastically support the radiator on the base plate portion. The elastic holder includes a tubular body having a central hole into which the support shaft portion of the radiator is inserted and held, and a lower portion of the radiator integrally formed above the tubular body. An inner member made of a rigid material, which is formed of a holding flange portion to be held, and an outer peripheral surface which is disposed outside the tubular body of the inner member with a predetermined gap and is inserted into the holding hole of the substrate portion. A locking member formed integrally with an insertion shaft portion having a retaining projection on the upper side of the insertion shaft portion, positioned below the holding flange portion of the inner member, and locked to the upper surface of the substrate portion. Rigid material consisting of a flange and divided into multiple pieces in the circumferential direction A lower radiator support, comprising: an outer member formed by 1 .; and an elastic rubber portion interposed between the inner member and the outer member to connect the inner member and the outer member. Elastic retainer.