JPH031289Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a mounting structure for a dynamic damper for a vehicle.

(Prior Art) As a conventional example of the mounting structure of a dynamic damper for a vehicle, there is one as shown in Fig. 8 (Nissan Laurel Maintenance Manual 1984 Edition, Page C-61, October 1984, Nissan Motor Co., Ltd.) company issue).
This dynamic damper 100 is installed in a strut-type front suspension (not shown) of a vehicle, and is attached to a cross member (suspension member) 101 (not shown) by bolts and fixed to a vehicle body (not shown) extending in the vehicle width direction. It is attached with a nut 102.

The dynamic damper 100 is constructed by attaching a mass 105 to a substrate 103 via an elastic body 104 made of rubber or elastomer. Also,
The cross member 101 has a substantially U-shaped open cross section, and ribs 101a are provided around the periphery of the opening to increase rigidity.

Then, as shown in FIG. 9, the cross member 10
Closing plate 106 on rib 101a of 1
are fixed by spot welding, and the cross member 10
1, the dynamic damper 100 is installed by inserting the mass 105 into the cross member 101 through the opening 106a of the closing plate 106, and then inserting the mass 105 into the cross member 101 through the opening 106a of the closing plate 106. and the board 103 with bolts.
It is fixed by tightening with a nut 102.

(Problem to be solved by the invention) However, in the mounting structure of such a dynamic damper for a vehicle, the cross member 1
01 by spot welding, the board 103 of the dynamic damper 100 is superimposed on the cross member 101 and the closing plate 106, and the three plates are fastened together with bolts and nuts 102. , it loosens more easily than the fastening of two plates and requires strong fastening force. Therefore, there was a problem that the fastening work and the work of checking the fastening work were very time-consuming and the workability was poor.

(Means and effects for solving the problem) This invention was made in view of the above-mentioned conventional problems, and its configuration is such that a mass is attached to the board via an elastic body, and one end of the board is attached to the board via an elastic body. A dynamic damper having a substantially U-shaped hooking part formed at one end and a substantially L-shaped engaging part formed at the other end, and a closing plate having an open cross section and covering the middle part in the longitudinal direction of the opening. and a vehicle body side member that is fixed to the vehicle body with the opening facing downward, and the dynamic damper is inserted through the open part of the opening of the vehicle body side member, and the latching portion is latched to one end edge of the closing plate. This is a mounting structure for a dynamic damper for a vehicle in which the closing plate and the board are fixed with bolts and nuts.

Therefore, the opening of the vehicle body side member is directed upward,
Insert the dynamic damper from the open part of the opening, and with the hooking part hooked to one edge of the closing plate, insert the closing plate and the board of the dynamic damper into the engaging part with the operator's finger. Since the dynamic damper can be fixed with bolts and nuts while adjusting the position by engaging the parts, the dynamic damper can be easily attached to the vehicle body side member by one worker, and the two
Since it is tightened with bolts and nuts on a single plate,
It's an easy job and you don't have to worry about it coming loose.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

1 to 3 show an embodiment in which this invention is applied to a center member 1, which is a member on the vehicle body side. The center member 1 is disposed below a power unit 2 consisting of an engine, a transmission, etc., at an intermediate portion in the vehicle width direction, and extends in the longitudinal direction of the vehicle, with a bolt and nut 3 at the front end. Further, the rear end portion is fixed to the vehicle body 5 such as a subframe and a cross member with bolts and nuts 4, thereby improving the rigidity of the vehicle body 5 and preventing the power unit 2 from interfering with the road surface. In this center member 1, a pair of brackets 6, 7 are fixedly installed, and each bracket 6, 7 is configured to support the power unit 2 by interposing a buffer rod, a mounting device, etc. (not shown). The center member 1 has a substantially U-shaped open cross section, and the edge of the opening 1a is bent outward to form a rib 1b.
is provided around the periphery to increase rigidity, and is arranged with the opening 1a facing downward. The center member 1 includes closing plates 8 and 9 that cover at least a portion of the opening 1a, including at least the intermediate portion in the longitudinal direction.
Specifically, the intermediate closing plate 8 and the front end closing plate 9 are each fixed to the rib 1b by spot welding.

On the other hand, the dynamic damper 10 is constructed by attaching a mass 13 to a metal substrate 11 via an elastic body 12. The protruding piece at the center of one end of the board 11 is bent into a U-shape on the side opposite to the mounting surface of the mass 13, as shown in FIG. An engaging portion 11b is formed on the mounting surface side of the dynamic damper 10 by bending it into a substantially L-shape and engaging the operator's fingers to adjust the mounting position of the dynamic damper 10. The longitudinal lengths of the substrate 11 and the intermediate closing plate 8 are approximately the same, and the central portion is appropriately curved like the closing plate 8 to provide high rigidity.

Next, the procedure for attaching this dynamic damper 10 to the center member 1 will be explained. As shown in FIG. 4, the center member 1 has its opening 1a facing upward, and the dynamic damper 10 is inserted through the open portion of the opening 1a where the closing plates 8 and 9 are not fixed, with the substrate 11 facing upward. Next, as shown in FIG. 5, the operator inserts his/her hands from both sides of the intermediate closing plate 8 and pulls up the dynamic damper 10, and at the same time pulls up the retaining portion of the board 11 as shown in an enlarged view in FIG. 11a to one end edge of the closing plate 8, and as shown in FIG. match and tighten bolt 14b.

Therefore, the dynamic damper 10 can be installed by tightening the bolts and nuts 14a and 14b while supporting the engaging portion 11b with the fingers of one hand, so that it can be installed with good workability by a single worker. Since the bolts and nuts 14a and 14b can be used to fasten two plates between the closing plate 8 and the board 11, the bolts and nuts 14a and 14b can be fastened with simple work.
There is no need to worry about 14b becoming loose.

Note that this invention can be similarly applied to a cross member 101 that is a vehicle body side member as shown in FIG.

(Effects of the invention) As can be understood from the above explanation, this invention provides a mounting structure for a dynamic damper for a vehicle that allows for good installation workability of the dynamic damper to a member on the vehicle body side. This has the practical effect of

[Brief explanation of drawings]

Fig. 1 is a front view showing one embodiment of this invention, Fig. 2 is a front view showing how the dynamic damper is attached to the closing plate, Fig. 3 is a plan view, and Figs. 4 to 7 are respectively showing the installation. FIG. 8 is a perspective view showing the conventional structure, and FIG. 9 is a sectional view showing the conventional structure. 1: Center member (body side member), 1a: Opening, 5: Vehicle body, 8: Closing plate, 1
0: Dynamic damper, 11: Substrate, 11a:
Latching part, 11b: Engagement part, 12: Elastic body, 13:
Square, 14a: Natsu, 14b: Boruto.

Claims (1)

[Scope of utility model registration request] A dynamic damper includes a mass attached to a board via an elastic body, a substantially U-shaped hook part formed at one end of the board, and a substantially L-shaped engaging part formed at the other end; A closing plate that has a cross-sectional shape and covers the longitudinal middle part of the opening is fixed,
The dynamic damper is inserted into the open part of the opening of the vehicle body side member, and the hooking part is hooked to one end edge of the closing plate, and the dynamic damper is fixed to the vehicle body with the opening facing downward. A mounting structure for a dynamic damper for a vehicle, characterized in that a board and a board are fixed with bolts and nuts.