JPH04107194U - Motorcycle engine support device - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically adjusts the magnitude of vibrations transmitted from the engine to the vehicle body and the rigidity of the vehicle body according to the driving conditions to easily obtain good maneuverability according to the driving conditions. Provides an engine support device for a two-wheeled vehicle. [Structure] Cylindrical spacer 24 with male thread 23 formed at the end
is inserted into the long bolt 22, and the cylindrical portion 28 and the cylindrical portion 28 are inserted into the annular gap 27 formed between the spacer 24 and the engine 3.
A cylindrical portion 28 of a substantially cylindrical bush 30 made of an elastic material and consisting of a flange portion 29 connected to the flange portion 29 was inserted, and a lock nut 31 was screwed onto the male thread 23. By turning and moving the lock nut 31, the tightening and press-fitting allowance of the bush 30 can be increased, so the magnitude of vibration transmitted from the engine 3 to the car body 1 and the rigidity of the car body 1 can be adjusted according to the driving conditions. As a result, it is possible to easily obtain good maneuverability depending on the driving conditions.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a motorcycle engine used to suspend the engine on the vehicle body. The present invention relates to a support device.

0002

[Conventional technology]

Conventionally, as an example of an engine support device for a motorcycle, as shown in FIGS. 6 and 7, There is something. This item is installed at three locations A, B, and C on the motorcycle as shown in Figure 9. It is a pair formed on the vehicle body 1 side with a certain distance between them. A part of the engine 3 is located between the bolt attachment parts 2, 2, and the part of the engine 3 is A cylindrical spacer 5 shorter than the insertion hole 4 is inserted into the insertion hole 4 formed in the insertion hole 4. 4, insert the bush 8 having the flange 7 into the opening 6 of the flange 7. The cylindrical portion 9 and the cylindrical portion 9 are installed between the engine 3 and the bush 8. A rubber bush 11 having a flange portion 10 with a larger diameter is interposed, and the long bolt 12 is connected to one side. From the bolt mounting part 2 through the bush 8 and spacer 5 to the other bolt mounting part 2. By protruding the tip from the top and screwing the nut 13 onto the tip, the engine 3 is installed in the vehicle. It is supported on the body 1 side.

0003 Another engine support device for a motorcycle is shown in FIG. this thing The diameter of the end portion of the insertion hole 4 of the engine 3 is expanded to form an annular cavity 14, A substantially cylindrical rubber bush 17 consisting of a cylindrical portion 15 and a flange portion 16 is provided with a gap between the cylindrical portion 15 and a flange portion 16. part 14 and position the flange part 16 between the bolt mounting part 2 and the engine 3. It is constructed by extrapolating it to the spacer 5.

0004

[Problem that the idea aims to solve]

By the way, when touring, the vibration transmitted from engine 3 to the car body is reduced. Also, during circuit driving, the overall rigidity of the vehicle body is increased to improve maneuverability. However, the press-fitting allowance D of the cylindrical portion 9 of the rubber bush 11 or the flap By increasing the tightness E of the engine 7, vibrations transmitted from the engine 3 to the vehicle body can be reduced. In other words, the rigidity of the vehicle body increases, so the engine support device The idea is to improve the maneuverability of the vehicle.

[0005] However, in the engine support device described above, the cylindrical shape of the rubber bush 11 is The press-fitting allowance D of the part 9 or the tightening allowance E of the flange part 7 is determined by the attached rubber bushing 11. Because it is limited to When trying to change the rigidity, the size of the tightening allowance E or press-fitting allowance D is adjusted each time according to the driving conditions. It is necessary to reassemble the rubber bush 11 that has a The reality is that it is not easy to improve maneuverability.

[0006]

[Means to solve the problem]

This invention is a means to solve the above problem, and is designed to be installed on the vehicle body side at a certain distance. A part of the engine is located between the pair of bolt attachment parts provided, and the part of the engine is Insert a long bolt into the insertion hole formed in the hole, and insert the long bolt into the pair of bolt mounting parts. In a motorcycle that is fastened to support the engine on the vehicle body, a male thread is formed at the end. Insert the cylindrical spacer into the long bolt with the end protruding from the engine. An annular ring is formed between the spacer and the engine at the opening of the engine insertion hole. A cylindrical part forming a cavity and a flank connected to the cylindrical part and having a larger diameter than the opening. Insert a substantially cylindrical bush made of an elastic material having a cylindrical portion into the gap, and the flange portion protrudes from the opening and is inserted into the spacer, and the bushing is inserted into the spacer. Thread the lock nut onto the male thread located on the bolt mounting part side of the flange part. It is characterized by being provided together.

[0007]

[Effect]

With such a configuration, depending on the driving conditions, for example, the engine can be turned on by turning the lock nut. When the bushing is moved to the side, the pressing force is transmitted to the bushing through the washer, and the flange is suppressed by the opening of the engine, its tightness increases, and the cylindrical The press-fitting allowance for the cylindrical part becomes large because the tip of the part is suppressed by the step part of the small diameter part. Ru.

[0008]

【Example】

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 and 9. this As shown in Figure 9, these are installed at three locations A, B, and C. A pair of bolt attachment parts 19, 19 are placed on the car body 1 at a certain distance apart (Fig. Write only one of the items. ) is provided between the pair of bolt attachment parts 19,19. A part of the engine 3 is located. An insertion hole 21 is formed in a part of the engine 3. A long bolt 22 can be inserted into the insertion hole 21.

[0009] A cylindrical spacer 24 with a male thread 23 formed on the end of the long bolt 22 is attached to the end of the long bolt 22. It is extrapolated to protrude from Jin 3. At the opening 25 of the insertion hole 21 of the engine 3 A small diameter portion 26 is provided in the spacer 24 between the spacer 24 and the engine 3. An annular cavity 27 is formed by this. The cylindrical portion 28 and the cylindrical portion 28 are connected to each other. A substantially cylindrical block made of an elastic material and having a flange portion 29 having a larger diameter than the opening portion 25 is in contact with the opening portion 25. The bush 30 inserts the cylindrical part 28 into the cavity 27 and inserts the flange part 29 into the opening. 25 and is inserted into the spacer 24. This bushing 30 is axially When pressed, it deforms sequentially according to the pressing force as shown in Figure 3 (1), (2), and (3). ing. The male part of the bush 30 located closer to the bolt attachment part 19 than the flange part 29 A lock nut 31 is screwed onto the screw 23. 32 in the figure is a lock nut. This is a washer interposed between the seat 31 and the flange portion 29.

0010 The engine support device configured as described above can be locked, for example, depending on the type of driving. When the nut 31 is turned and moved to the engine 3 side, the pressing force is applied to the block through the washer 32. This is transmitted to the bush 30 and the flange portion 29 is held in the opening 25 of the engine 3. As the tightening allowance E increases, the tip of the cylindrical portion 28 is pressed against the stepped portion of the small diameter portion 26. As a result, the press-fitting allowance D of the cylindrical portion 28 increases. This lock nut 31 The tightening allowance of the flange part 29 and the press-fitting allowance of the tubular part 28 can be changed by adjusting the amount of movement In addition, the magnitude of vibrations transmitted from the engine 3 to the vehicle body 1 can be changed depending on the driving conditions, and the vehicle body can be changed. It is possible to adjust the stiffness of 1, making it easy to obtain maneuverability that matches the driving conditions. be able to.

[0011] In the conventional type described above, the initial load of the rubber bush 11 is generated. To do this, tighten the long bolt 12 and nut 13 with the pair of bolt mounting parts 2, 2 in between. Because the rubber bush 11 was deformed during installation, extra stress was added to the vehicle body 1 side. In addition to applying force, the rubber bush 11 is larger than the mounting width of the vehicle body 1 when engine 3 is installed. was wider and was less easy to assemble, but the one of this invention is as described above. Initial load can be generated without tightening the pair of bolt mounting parts 19, 19. This results in poor engine assemblability, which was the problem with the conventional model mentioned above. This means that the problems can be improved.

0012 Note that in the above embodiment, the space provided by forming the small diameter portion 26 in the spacer 24 is In the example shown in FIG. 4 and FIG. In this case, a hole is created by enlarging the diameter of the opening 25 side of the insertion hole 21 of the engine 3. A substantially cylindrical bush made of an elastic material that has a gap 33 and is shaped along the gap 33 34 may be provided.

[0013]

[Effect of the idea]

Since the present invention has the above-mentioned configuration, the lock nut can be turned and moved. As a result, the tightening and press-fitting allowance of the bushing can be increased, so the transmission from the engine to the car body is reduced. You can adjust the magnitude of the vibrations and the rigidity of the vehicle body depending on the driving conditions. This makes it possible to easily obtain maneuverability that matches the driving conditions.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an engine support device for a motorcycle according to an embodiment of the present invention.

FIG. 2 is a front view showing the engine support device.

FIG. 3 is a diagram showing the deformation process of the bush of the engine support device.

FIG. 4 is a sectional view showing another cavity and a bush provided in the engine support device.

FIG. 5 is an exploded view showing the structure of the engine support device including the cavity and the bush.

FIG. 6 is a front view showing an example of a conventional motorcycle engine support device.

FIG. 7 is a sectional view showing the engine support device.

FIG. 8 is a front view showing another example of a conventional engine support device for a motorcycle.

FIG. 9 is a perspective view showing a motorcycle in which the engine support device is used.

[Explanation of symbols]

1 Vehicle body 3 Engine 19 Bolt mounting part 22 long bolt 23 Male thread 24 spacer 25 opening 27 Cavity 28 Cylindrical part 29 Flange part 30 bush 31 lock nut

Claims (1)

[Scope of utility model registration request] Claim 1: A part of the engine is positioned between a pair of bolt attachment parts provided on the vehicle body side with a certain distance between them, and a long bolt is inserted into an insertion hole formed in the part of the engine to determine the length of the bolt. In a motorcycle in which the engine is supported on a vehicle body by fastening bolts to the pair of bolt attachment portions, a cylindrical spacer having a male thread formed at an end is attached to the long bolt with the end protruding from the engine. An elastic member is inserted into the engine, and forms an annular gap between the spacer and the engine at the opening of the engine insertion hole, and includes a cylindrical part and a flange part connected to the cylindrical part and having a larger diameter than the opening. A substantially cylindrical bush made of a material is inserted into the space with the cylindrical part, the flange part protrudes from the opening part, and is inserted into the spacer, and the bush is positioned closer to the bolt attachment part than the flange part of the bush. An engine support device for a motorcycle, characterized in that a lock nut is screwed onto a male thread of a portion where the engine is attached.