JPH0722043U - Engine fuel tank support device - Google Patents

Abstract

(57) [Summary] [Structure] An engine using the anti-vibration support tool 5 in which the end plates 7 and 7 are fixed to both ends of the anti-vibration rubber 6 and the screw rods 8 are erected on the respective end plates 7. In the fuel tank support device, the following was done. The antivibration rubber 6 is covered with the oilproof body 12,
The end plate 7 was fitted into and fixed to the oil-proof cylinder 12 on at least one of the bracket 1 and the mounting plate 3 to prevent the oil-proof body 12 from rotating. [Effect] Even if the fuel inside the fuel tank 2 fluctuates to the surroundings from the air vent hole of the cap 4 attached to the fuel supply port, the oil-proof cylinder 6 prevents the fuel from adhering to the anti-vibration rubber 6. To be prevented. For this reason, the anti-vibration rubber 6 due to the adhesion of fuel
Deterioration is prevented and its service life can be extended.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fuel tank support device for an engine, and more particularly, to a device that can prevent fuel scattered from a fuel tank from adhering to a vibration isolating rubber and can prevent a vibration isolating support tool from rotating.

[0002]

[Prior art]

 FIG. 4 shows a conventional technique of a fuel tank supporting device for an engine. It has the same basic structure as the present invention. That is, the end plates 107, 107 are fixed to both ends of the anti-vibration rubber 106, and the anti-vibration support tool 105 configured by vertically arranging the screw rods 108 on the respective end plates 107 is used to fix the bracket 101 fixed to the engine body E. It is configured such that one screw rod 108 is passed through and fastened with a nut 119, and the mounting plate 103 provided in the fuel tank 102 is passed through the other screw rod 108 and fastened with a nut 119.

By the way, in this conventional technique, the anti-vibration rubber 106 is in an exposed state, and the anti-vibration support 105 is not prevented from rotating.

[0004]

[Problems to be solved by the device]

 The above conventional technique has the following problems. Due to the shaking of the fuel tank 102, the internal fuel scatters from the air vent hole of the cap 104 attached to the fuel supply port to the surroundings, and this adheres to the exposed surface of the anti-vibration rubber 106 and deteriorates it. Sometimes. Therefore, this is a factor that shortens the useful life of the antivibration rubber 106.

When the fuel tank 102 is attached to the engine body E, if the nut 119 is tried to be fastened to the threaded rod 108, the antivibration support tool 105 is swung around, and the nut fastening work is difficult.

An object of the present invention is to provide a fuel tank supporting device for an engine, which can prevent fuel scattered from a fuel tank from adhering to a vibration isolating rubber and can prevent a vibration isolating support tool from rotating. Especially.

[0007]

[Means for Solving the Problems]

 As shown in FIG. 1, the present invention uses an anti-vibration support 5 constituted by fixing end plates 7 and 7 to both ends of a vibration-proof rubber 6 and arranging a screw rod 8 on each end plate 7. , One of the screw rods 8 is passed through the bracket 1 fixed to the engine body E and fastened with the nuts 19, and the mounting plate 3 provided on the fuel tank 2 is passed through the other screw rods 8 and fastened with the nuts 19. The features of the engine fuel tank support device configured as described below are as follows.

That is, the vibration-proof rubber 6 is covered with the oil-proof body 12, and one end plate 7 is fitted into the oil-proof body 12 to prevent the oil-proof body 12 from rotating. Of these, at least one is fixed or locked.

[0009]

[Operation and effect of the device]

 The present invention has the following actions and effects as shown in FIG. Even if the fuel inside the fuel tank 2 scatters from the air vent hole of the cap 4 attached to the fuel supply port to the surroundings due to the shaking of the fuel tank 2, its adhesion to the antivibration rubber 6 is prevented by the oilproof body 12. . For this reason, deterioration of the vibration isolating rubber 6 due to the adhesion of fuel is prevented, and the useful life thereof can be extended.

When the fuel tank 2 is attached to the engine body E, the anti-vibration support 5 is entirely prevented from rotating around the bracket 1 or the mounting plate 3 via the end plate 7 and the oilproof body 12. Since the tool 5 does not hang around, the nut fastening operation to the screw rod 8 becomes easy.

[0011]

Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are views for explaining the first embodiment. As shown in FIG. 1, the engine used in this embodiment is a vertical overhead valve engine having the following structure. That is, as shown in FIG. 1 (A), the vertically oriented bracket 1 is fixed to the cylinder head 13 of the engine body E, and the fuel tank 2 is supported thereby. The upper end of the bracket 1 is bent in a hook shape to form a lateral receiving seat 15a, and the lower end is bent in a raised shape to form a vertical receiving seat 15b. Further, the fuel tank 2 is provided with a mounting plate 3, the upper part of which is bent into an L-shape to form a lateral mounting seat 16a, and the lower part of which is formed as a vertical mounting seat 16b. A cap 4 having an air vent hole is fitted to a fuel supply port provided at an upper portion of the fuel tank 2.

Between the horizontal receiving seat 15 a of the bracket 1 and the horizontal mounting seat 16 a of the mounting plate 3, and between the vertical receiving seat 15 b of the bracket 1 and the horizontal mounting seat 16 b of the mounting plate 3, The anti-vibration support tool 5 is respectively interposed.

As shown in FIG. 1 (B), the antivibration supporter 5 has end plates 7 and 7 fixed to both ends of a cylindrical antivibration rubber 6, and a screw rod 8 is erected on each end plate 7. Is configured. The upper screw rod 8 is penetrated by the lateral mounting seat 16a, the lower screw rod 8 is penetrated by the lateral receiving seat 15a, and the nuts 19 are fastened to the respective screw rods 8. Further, the anti-vibration support 5 between the vertical receiving seat 15b and the vertical mounting 16b is similarly mounted.

In this embodiment, the fuel scattered from the fuel tank 2 can be prevented from adhering to the antivibration rubber 6 and the antivibration support 5 can be prevented from rotating. The configuration is adopted. That is, as shown in FIG. 1 (B), the vibration-proof rubber 6 is covered with the oil-proof body 12 together with the one end plate 7. As shown in FIG. 2, the oilproof body 12 is a cylindrical cap with a bottom, and flat surfaces 17 and 17 are provided on the peripheral wall so as to face each other. The end plate 7 has a substantially disk shape, and a notch edge 11 is linearly formed parallel to the peripheral edge thereof. Then, the one end plate 7 is fitted into the oilproof body 12, and the straight cutout edge 11 of the end plate 7 is brought into contact with the flat surface 17 of the oilproof body 12, so that the end plate 7 is made into the oilproof body. It is stopped at 12. Further, as shown in FIG. 1B, the end surface 10 of each end plate 7 is in contact with the end plate 18 of the oilproof body 12 and the receiving seats 15a and 16a.

The end wall 18 of the oilproof body 12 is fixed to the mounting seat 16a of the mounting plate 3 by spot welding, so that the oilproof body 12 is prevented from rotating around the mounting seat 16a. This rotation stop may be performed by locking the rotation stop piece 22 led out from the oilproof body 12 to the receiving seat 15a as shown by the chain line. Further, the non-interference space 23 is held in front of the end circle 22a of the oil proof body 12 so that the end circle 22a of the oil proof body 12 does not interfere with other parts even when the anti-vibration rubber 6 is maximally contracted. There is.

According to this structure, even if the internal fuel is scattered around the air vent hole of the cap 4 attached to the fuel supply port due to the shaking of the fuel tank 2, the vibration of the fuel to the antivibration rubber 6 is prevented. The adhesion is prevented by the oilproof body 12. Further, since the vibration isolating support 5 as a whole is prevented from rotating around the bracket 1 or the mounting plate 3 via the end plate 7 and the oilproof body 12, when the fuel tank 2 is attached to the engine body E, the vibration isolating support 5 Since there is no turning around, the nut tightening work to the screw rod 8 becomes easy.

Next, a second embodiment of the present invention will be described. FIG. 3 is a diagram for explaining the second embodiment. In the second embodiment, the cap-shaped oilproof body 12 having the bottomed cylindrical shape of the first embodiment is changed to a cylindrical shape having no bottom. The other structure is similar to that of the first embodiment, and the same elements are designated by the same reference numerals.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a first embodiment of the present invention, and FIG.
FIG. 1 (A) is a front view of a main part of the engine, and FIG. 1 (B) is an enlarged view of a vibration isolator.

FIG. 2 is a cross-sectional plan view of the anti-vibration support device of FIG. 1 (B).

FIG. 3 is a perspective view of an essential part of a second embodiment of the present invention.

FIG. 4 is a view corresponding to FIG. 1 of the prior art.

[Explanation of symbols]

1 ... Bracket, 2 ... Fuel tank, 3 ... Mounting plate, 5
... Anti-vibration support, 6 ... Anti-vibration rubber, 7 ... End plate, 8 ... Screw rod,
12 ... Oilproof body, 19 ... Nut, E ... Engine body.

Claims (1)

[Scope of utility model registration request] 1. An anti-vibration support tool constituted by fixing end plates (7), (7) to both ends of an anti-vibration rubber (6), and vertically arranging a screw rod (8) on each end plate (7). Using (5), one screw rod (8) is passed through the bracket (1) fixed to the engine body (E), and the nut (19) is inserted.
In the fuel tank supporting device of the engine, the vibration control device is configured by fastening with the nut (19) by passing the other screw rod (8) through the mounting plate (3) provided in the fuel tank (2). The rubber (6) is covered with the oilproof body (12), and the oilproof body (12) is covered.
Insert one end plate (7) into the
(12) is fixed or locked to at least one of the bracket (1) and the mounting plate (3) to provide the oilproof body.
(12) A fuel tank support device for an engine, characterized in that it is configured so as not to rotate.