JP2581800Y2 - Fan belt tension device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan belt tension device in which the tension of a fan belt is adjusted via a generator of an engine, and which has the following basic structure.

[0002]

[Basic structure of the invention] This fan belt tension device
The basic structure of, as shown in Figure 5, the front of the engine E
Fan drive pulley 4 and the fan pulley 7 generator pulley 1
Over to the 7, wrapping the fan belt 6, the engine E coercive
The base end 13a of the generator support stay 13 is fixed to the front surface of the fixed wall 1 located on the side opposite to the entire operation side A, and the generator 15
One of the mounting arms 16a is swingably mounted on the generator supporting boss 11 provided on the fixed wall 1, and the other mounting arm 16b is
With the generator mounting bolts 19
In addition, it is configured so as to be movable and adjustable along the tension adjusting slot 14.

[0003]

2. Description of the Related Art In the prior art, in this basic structure,
As shown in FIG. 5, one mounting arm 16 of the generator 15 is provided.
a is the generator fixing boss 11 with the generator fixing bolt 18.
And the other mounting arm 16b is fixed to the generator stay 13 by a generator mounting bolt 19.

[0004]

In the above conventional example, since the generator 15 is located on the right front side when viewed from the front of the engine E, that is, on the side opposite to the engine maintenance operation side A, the fan belt 6 When changing the tension or adjusting the tension, it is necessary to rotate the generator pulley 17 and adjust the movement of the generator pulley 17, which is inconvenient. The present invention has been made in view of such circumstances, and has been made to enable the operation of adjusting the movement of the generator pulley without changing the arrangement of the generator and without turning to the non-operating side. Technical issues.

[0005]

According to the present invention, in order to solve the above-mentioned problems, a tension device having the above-mentioned basic structure is improved as shown in FIGS. That is, the tension between the base end (13a) of the generator support stay (13) and the tension
Of the water flange (2) with the mounting bolt mounting member (21).
Fixing to the front of the fixed wall (1) using the fixing screw hole
And, tension ball in the tension bolt mounting member (21)
A member 2 that passes through the bolt
2 is mounted so as to be idling, swinging through, above Borutohe
With the pad (24a) in front of the water flange (2).
Then, connect the bolt head (24a) to the engine maintenance operation side (A).
The generator mounting bolt 19 is configured to be more rotatable.
And then screwed to the moving block 25 movable along the tension adjusting long hole 14, the moving block 25 is characterized in that it has pushing and pulling operably configured above tension bolt 24.

[0006]

[Operations and effects of the present invention] The present invention has the following operations and effects, for example, as shown in FIGS. Base end 13a of generator support stay 13 and tension bolt mounting member 2
1 means that the screw hole for fixing the water flange 2 is used.
The tension bolt 24 is fixed to the front surface of the fixed wall 1 and passes through the tension bolt mounting member 21 through the tension bolt 24.
Idling / necking of the head side portion via the retaining member 22
When mounted swingably, the bolt head 24a
Is located on the front side of the water flange 2,
Head 24a can be rotated from engine maintenance operation side A
It works. When the tension bolt 24 is rotated by the bolt head 24a , the moving block 25 moves along the tension adjusting slot 14. One mounting arm 16a of the generator 15 is pivotally supported by the generator supporting boss 11 so that the other mounting arm 16b of the generator 15 moves with the generator mounting bolt 25 as the moving block 25 moves. 19
Move along the tension adjusting long hole 14 via.
Thus, without changing the arrangement of the generator can be easily moved and adjusted operating the generator pulley 17 from the preservation operation side A of the engine E.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a front view of a tension device according to an embodiment of the present invention, FIG. 2 is a front view of the main part, FIG. 3 is a right side view of the main part, and FIG. 4 is a left side of the main part viewed from the maintenance operation side. FIG. In these figures, reference numeral 10 indicates the entire tension device.

The tensioning device 10 includes a crankshaft 4
a, the fan belt 6 is wound around the fan pulley 7 and the generator pulley 17 fixed to the support shaft 7a of the cooling circulation pump of the gear case.
5 of the pair of mounting arms 16a and 16b, one mounting arm 16a is swingably mounted on the electric machine support boss 11 by a bolt 18, and the other mounting arm 16b is
9 is attached to the generator stay 13 via the moving block 25 and the moving block 25 is pushed and pulled by the tension bolt 24 mounted on the tension bolt mounting member 21 to adjust the tension of the fan belt 6. Have been.

As shown in FIG. 1, the generator 15 is disposed on the right front side as viewed from the front of the engine E and opposite to the engine maintenance operation side A as in the conventional example. Is fixed to an input shaft 15a of the generator 15, and a pair of mounting arms 16a and 16b
Project in the radial direction.

The generator supporting boss 11 is formed in a gear case forming the fixed wall 1 of the engine E. Also,
Generator support stay 13 and tension bolt mounting member 2
1 is fixed to another fixed wall 1 of the engine E. That is, as shown in FIGS. 2 and 3, the tension bolt mounting member 21 is formed integrally with the generator support stay 13 at a base end portion 13 a of the generator support stay 13 to support the generator support. The head block 1 that forms the fixed wall 1 of the engine E using the fixing screw holes of the water flange 2 with the base end portion 13a of the stay 13 and the tension bolt mounting member 21
b is fixed to the front surface by a fixing bolt 20.

The tension bolt mounting member 21 includes:
A bolt insertion hole 21a is formed to penetrate right and left, and a tension bolt 24 penetrates the bolt insertion hole 21a.
The head-side part is attached so that it can be retained, idle, and swung. That is, as shown in Figure 2, the tension Bol
24 penetrates the tension bolt mounting member 21 and
Of the bolt head 24a of the tension bolt mounting member 21
The Setto allowed, and retained by the head closer section and the swing can stop member 22 and the snap ring 23 comprises a moving block 25 engages screw threaded into the threaded portion 24b, one of the engine maintenance operation side A The bolt head 24a is configured to be rotatable with a hexagonal spanner or the like. One
In other words, tension bolts are
In a state where the port 24 is mounted, as shown in FIG.
The tilt head 24a is located in front of the water flange 2.
Therefore, this bolt head 24a is located on the engine maintenance operation side.
A can be rotated more easily than A.

As shown in FIG. 3, the generator mounting bolt 19 is attached to a mounting arm 16b of the generator 15 by a pivot 19a.
The pivot 19a is loosely fitted in the tension adjusting slot 14 of the generator support stay 13, and the screw 19b of the generator mounting bolt 19 is screwed into the moving block 25, thereby forming the generator. The mounting bolt 19 and the moving block 25 are fixed. Thus, when the moving block 25 is pushed and pulled by the tension bolt 24, the moving block 25 is prevented from rotating by the generator support stay 13, and moves along the tension adjusting slot 14.

That is, by rotating the bolt head 24a with a hexagonal hole wrench or the like from one engine maintenance operation side A, the moving block 2 is moved by the tension bolt 24.
5 can be pushed and pulled, and the other mounting arm 16b of the generator 15 is
Moves along the tension adjusting slot 14 via the generator mounting bolt 19. Thereby, the operation of adjusting the movement of the generator pulley 17 can be performed from the engine maintenance operation side A without changing the arrangement of the generator, which is convenient.

The present invention is not limited to the above embodiment, but is not limited to the generator support stay 13 and the tension bolt mounting member 21 formed integrally. The generator 15 may be on either the left or right side of the engine E as long as the generator 15 is arranged near the front of the engine E and on the side opposite to the maintenance operation side A of the engine E. In addition, the generator support stay 1
3. Tension bolt mounting member 21 and moving block 25
It is not necessary to say in a multi-language manner that the present invention can be carried out with appropriate changes.

[Brief description of the drawings]

FIG. 1 is a front view of a tension device according to the present invention.

FIG. 2 is a front view of a main part of the tension device according to the present invention.

FIG. 3 is a right side view of a main part of the tension device according to the present invention.

FIG. 4 is a left side view of a main part of the tension device according to the present invention as viewed from a maintenance operation side.

FIG. 5 is a front view of a tension device according to a conventional example.

[Explanation of symbols]

E: Engine, A: Engine maintenance operation side, 1: Engine fixed wall, 2: Water flange, 4: Fan drive pulley, 6: Fan belt, 7: Fan pulley, 11: Generator support boss, 13: Generator Support stay, 13a: Base end of generator support stay, 14: Slot for adjusting tension, 1
5 ... generator , 16a, 16b ... mounting arm of generator, 17 ...
Generator pulley, 19: Generator mounting bolt, 21: Tension bolt mounting member, 24: Tension bolt, 24a
... bolt head, 25 ... moving block.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F02B 67/06 F16H 7/08

Claims (1)

(57) [Scope of request for utility model registration] 1. A front surface of the fan drive pulley of the engine (E)
(4) and over the fan pulley (7) and the generator pulley (17),
Wrapping the fan belt (6), d conservation operation side of the engine (E)
The base end (13a) of the generator support stay (13) is fixed to the front surface of the fixed wall (1) located on the side opposite to (A), and one mounting arm (16a) of the generator (15) is attached. The generator support boss (11) provided on the fixed wall (1) is swingably mounted, and the other mounting arm (16b) is attached to the generator support stay (13) with a generator mounting bolt (19). )
In a fan belt tension device configured to be movable and adjustable along a tension adjusting elongated hole (14), a tension between a base end (13a) of the generator support stay (13) and a tension
Fixing the water flange (2) with the bolt mounting member (21)
The fixing bolt (1) is fixed to the front surface of the fixing wall (1) using a screw hole for mounting the tension bolt mounting member (21).
(24) and the retaining member 22 from the head-side part
Attach the bolt head (24a) in front of the water flange (2)
Side, the bolt head (24a) is configured to be rotatable from the engine maintenance operation side (A), and the generator mounting bolt (19) is arranged along the tension adjusting slot (14). Screw it into the movable block (25), and fix it.
(24) A tension device for a fan belt, wherein the tension device is configured to be capable of being pushed and pulled.