JPH0623721Y2 - Belt steady rest device for horizontal rear engine bus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a belt steadying device that prevents the running of a belt that connects a crank pulley and a driven pulley of a horizontal rear engine bus.

[Conventional technology]

The horizontal rear engine bus has a crank pulley,
In order to transmit the rotation of the crank pulley to the other driven pulley, a belt is connected between the two pulleys.

In order to prevent the belt connecting the two pulleys from swinging, in general, for example, in Japanese Utility Model Laid-Open No. 61-122449.
A belt steady device such as that disclosed in Japanese Patent Publication is provided.

However, since the belt steadying device has a relatively complicated structure and occupies a lot of space, the engine room is narrow like a horizontal rear engine bus, and various parts are mounted in the narrow space. In the thing,
Hard to adopt.

Therefore, generally, as shown in FIG. 4, a belt steady-state device in which steady-state pulleys 4 and 5 are attached to upper and lower long holes 2 and 3 of a bracket 1 is used for a belt in which a crank pulley and a driven pulley are connected. It is provided in the middle part and the mounting positions of the upper and lower steady-state pulleys 4 and 5 are adjusted to press the belts respectively to prevent the runout.

[Problems to be solved by the device]

However, when there is an interfering object (approaching object) such as the bumper B on the back surface (rear side) of the belt anti-sway pulley 5, the distance between the belt anti-sway pulley 5 and the bumper B (interfering object) is very narrow, so the bolt It is not possible to loosen or tighten the pulley mounting bolts 6 using a tightening tool, so it may be difficult to adjust the belt steady-state.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and its purpose is to make it possible to adjust the belt steady-state even if there is an obstacle such as a bumper on the back surface (rear side) of the belt steady-state pulley. (EN) Provided is a belt steadying device for a stationary rear engine bus.

[Means for Solving the Problems]

In order to achieve the above object, a belt steadying device for a horizontal rear engine bus according to the present invention connects a crank pulley and a driven side pulley with a belt, and intermediates the belt on both sides of a tension side and a slack side. A belt steadying device for a laterally mounted rear engine bus press-contacted by a steadying pulley provided on each of the respective sides attached to a bracket,
Among the pulley bolt mounting holes of the pulley mounting bolt that attaches each steady rest pulley to the bracket, make one of the pulley bolt mounting holes on the back side of the mounting bolt that does not interfere with the bolt tightening tool a long hole, and the other pulley bolt mounting hole that interferes. It is a fixed round hole, and all the bolt mounting holes on the engine side of the bracket are elongated holes.

[Action]

With such a configuration, even if there is an interference such as a bumper on the back surface of the belt steady pulley, by loosening the bracket mounting bolt and the pulley mounting bolt on the side where the bolt tightening tool does not interfere with the interference, Even if you do not loosen the pulley mounting bolt on the side where the bolt tightening tool interferes with the interferer, you can change the belt steady-state position by moving the bracket mounting position and the belt steady-state pulley mounting position. Is possible.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of a belt steadying device for a horizontal rear engine bus according to the present invention.

In the figure, 10 is a crank pulley provided in the engine room R of the horizontal rear engine bus. Reference numeral 11 denotes a driven pulley provided in another portion of the engine room R, for example, a pulley of a generator. Both pulleys 10,
11 is connected by a belt 12, and the crank pulley 10
The rotational drive of the above is transmitted to the driven pulley 11 via the belt 12. A bracket 14 is provided on a belt intermediate portion 13 of a pulling side 12a and a slacking side 12b of a belt 12 to which both pulleys 10 and 11 are connected, and a slack side (upper side) 12b and a pulling side (lower side) of the bracket 14 are provided. As shown in FIGS. 2 and 3, pulley bolt mounting holes 15 and 16 are formed in 12a.

The upper pulley mounting bolt hole 15 is a long hole extending in the vertical direction, the lower pulley mounting bolt hole 16 is a fixed round hole, and the upper pulley mounting bolt hole 15 has the upper steady rest pulley 17. , The upper steady rest pulley 18 is attached to the pulley mounting bolt hole 15 in the lower portion, respectively.
It is attached by tightening 9. Further, the flange portion 20 of the bracket 14 is formed with bolt mounting holes 21, 22, 23 for fixing the bracket 14 itself. Each of the mounting bolt holes 21, 22, 23,
The bracket 14 is fixed in the engine room R by tightening the mounting bolts 24 inserted into the mounting bolt holes 21, 22 and 23, respectively.

On the back surface (rear side) corresponding to the belt steady pulley 18 at the bottom of the steady device, just the bus bumper 25 is provided.
Is located. Therefore, since the bolt tightening tool (adjustment tool) interferes with the bumper 25 and cannot be used on the lower side of the belt steady pulley 18, the run of the belt 12 that connects the crank pulley 10 and the driven pulley 11 is run. To adjust the stop, attach the bracket 14 beforehand to the bottom belt steady pulley 1.
After positioning and fixing 8, the bracket 14 is mounted in the engine room R by lightly tightening the mounting bolt 24 of the bracket 14, and then the bracket 14 is moved up and down to adjust the vertical position of the bracket 14 and the mounting bolt 2
4 is tightly tightened and fixed, and then the upper position of the belt steady pulley 17 is adjusted and fixed by tightening the pulley mounting bolt 19. And the upper and lower steady pulleys 1
The runout of the belt 12 is prevented by pressing the intermediate portion of the belt 12 with the pressure rollers 7 and 18.

According to the steady rest device, the lower belt steady rest pulley 1 is provided.
Even if the bus bumper 25 is located on the back corresponding to 8,
If the mounting bolts 24 fixing the bracket 14 are loosened, the mounting position of the bracket 14 can be changed within the range of the bolt mounting holes 21, 22, 23 which are vertically elongated holes.

Further, if the pulley mounting bolt 19 fixing the steady pulley 17 is loosened, the position of the steady pulley 17 can be changed within the range of the pulley bolt mounting hole 15 which is a vertically elongated hole.

Therefore, the mounting positions of the bracket 14 and the steady rest pulley 17 are changed within these ranges, whereby the steady rest pulleys 17 and 18 can be changed, and the steady rest of the belt 12 can be adjusted.

In the above embodiment, the driven pulley is the pulley of the generator, but it can be applied to other pulleys such as a fan pulley. Depending on the case, a vertically long or horizontally long bracket is also used, and the bolt mounting hole formed therein is also vertically long or horizontally long.

[Effect of device]

As described above, according to the present invention, by making the pulley mounting hole of the pulley mounting bolt of the steady rest pulley on the side where the bracket bolt mounting hole and the bolt tightening tool do not interfere with each other, the other belt steady rest pulley Even if there is an obstacle on the back side, the belt steady stop can be adjusted.

[Brief description of drawings]

FIG. 1 is a rear view of an embodiment of the present invention, FIGS. 2 and 3 show the main part of FIG. 1, FIG. 2 is its rear view, and FIG. FIG. 4 and FIG. 4 are rear views of a conventional main part. 10 ... Crank pulley 11 ... Driven side pulley 12 ... Belt 12a ... Pull side 12b ... Loose side 13 ... Intermediate part 14 ... Bracket 15,16 ... Pulley bolt mounting hole 17, 18 ... Steady stop Pulley 19 …… Pulley mounting bolts 21,22,23 …… Bolt mounting holes.

Claims (1)

[Scope of utility model registration request] 1. A steady pulley in which a crank pulley and a driven side pulley are connected by a belt, and intermediate portions of the belts on both sides of the pulling side and the slack side are provided on the respective sides attached to a bracket. In a belt steadying device for a horizontal rear engine bus that is press-contacted with, one of the pulley bolt mounting holes of the pulley mounting bolts for mounting the two steady rest pulleys on the bracket, on the rear side of the mounting bolts, where the bolt tightening tool does not interfere. The pulley rear side of the rear engine bus is characterized in that the pulley bolt mounting hole of is made a long hole, the other interfering pulley bolt mounting hole is made a fixed round hole, and all the bolt mounting holes of the bracket to the engine side are made a long hole. Belt steady rest.