JP2003214510A - Sliding-contact guide for transmission device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive sliding-contact guide for a transmission device, which restrains vibration noise caused by backlash between a synthetic resin guide body and a reinforcing plate, reducing requirements of molding accuracy and assembling accuracy, and reducing molding burdens using an inexpensive die. <P>SOLUTION: In this sliding contact guide for the transmission device, the reinforcing plate 120 for reinforcing the synthetic resin guide body 110 with which a transmission medium is brought into sliding contact is inserted into a slit in the synthetic resin guide body 110. In the sliding-contact guide for the transmission device, the reinforcing plate 120 is held so as not to come off by a plurality of snap latching means 113 which are integrally formed with the guide body 110 and are hung on a slit 112a in a vertical plate part 112. Thus, vibration noise during transmission driving is restrained so as to reduce the requirements of the molding accuracy and assembling accuracy. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive side sprocket, a driven side sprocket, and a chain transmission device for transmitting power from a drive side to a driven side by a chain wound around these sprockets and traveling in circulation, or a drive side pulley. The present invention relates to a sliding contact guide for a transmission device having a sliding function, which is used in a belt transmission device that transmits power from a driving side to a driven side by a driven pulley and a belt wound around these pulleys to circulate.

[0002]

2. Description of the Related Art Generally, in a transmission device such as an engine and a drive device for transmitting power by a chain, a belt or the like, for example, a tensioner lever is used so as to be swingably mounted around one mounting shaft. Slide contact guide,
Fixed slide contact guides used as chain guides, guide rails, belt guides, etc. are provided, and these movable slide contact guides and fixed slide contact guides are
It is attached to the body of a drive unit with mounting bolts, pins, etc. to give proper tension by sliding contact with the circulating chain and belt, and to prevent vibration and lateral shake of the running chain and belt. ing.

That is, the conventional movable guide 500 for a transmission shown in FIG. 9 is provided with a shoe portion 511 on which a running chain comes into contact with the surface and a rear surface of the shoe portion 511 along the longitudinal direction of the guide. Vertical plate 5 having slits 512a that open in the longitudinal direction formed in the longitudinal direction
12 and a metal reinforcing plate 520 fitted into the slit 512a. Further, as shown in FIGS. 10 to 12, the vertical plate 512 has a window. A portion 512f is provided, and a tongue piece 512g extending in a direction in which the metal reinforcing plate 520 is fitted is formed in the window portion 512f. The tongue piece 512g enters the slit 512a.
12h and has a truncated surface 512i continuous to the bulging surface 512h at the end of the tongue piece 512g, the metal reinforcing plate 520 is provided with a recess 522,
The recess 522 of the metal reinforcing plate 520 has the tongue piece 512g.
It is adapted to be locked to the truncated surface 512i (Japanese Patent Application 2
001-071170).

[0004]

As shown in FIG. 12, the above-mentioned conventional movable guide 500 for a transmission device is caused by a molding error or an assembly error between the synthetic resin guide main body 510 and the metal reinforcing plate 520. A gap S is formed between the truncated surface 512i of the tongue piece 512g and the recess 522 of the metal reinforcing plate 520, and vibration noise caused by rattling between the tongue piece 512g and the metal reinforcing plate 520 during engine operation. There was a problem that occurs.

Also, a conventional synthetic resin guide body 510 is used.
As shown in FIG. 13, as compared with a normal molding process, since it has a complicated guide form such as a truncated surface 512i continuous to the bulging surface 512h, a molding die divided into at least four ( m1, m2, m3, m4),
There has been a problem that the number of parts of the molding die is increased and a highly accurate molding die is required, which not only increases the cost of the molding die, but also requires molding time because the molding die is divided.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to suppress vibration noise caused by rattling between the synthetic resin guide body and the reinforcing plate during transmission. It is possible to provide a low-cost sliding contact guide for a transmission device that can reduce molding accuracy and assembly accuracy and can be manufactured at a low mold cost with a small molding load.

[0007]

A sliding contact guide for a transmission according to a first aspect of the present invention has a shoe portion on which a transmission medium such as a running chain or a belt slides in contact with a surface and a back side of the shoe portion. A guide body having a vertical plate-shaped portion provided in the longitudinal direction of the guide is integrally molded of synthetic resin, and a reinforcing plate for reinforcing the guide body is opened at a vertical end of the vertical plate-shaped portion to guide the guide. In a sliding contact guide for a transmission, which is fitted in a slit formed in the longitudinal direction, the reinforcing plate is formed integrally with the guide body, and a plurality of snaps are erected in the slit of the vertical plate portion. The problem is solved by being held by the locking means so as to be held.

In addition to the structure of the sliding contact guide for a transmission device according to claim 1 described above, the sliding contact guide for a transmission device of the invention according to claim 2 has The above-mentioned problem is further solved by forming a convex pressing portion that comes into contact with the vertical end surface of the reinforcing plate and presses the reinforcing plate into the slit.

In addition to the structure of the sliding contact guide for a power transmission according to the above-mentioned claim 1 or 2, the sliding contact guide for a power transmission of the invention according to claim 3 has the reinforcing plate. The problem is solved further by providing the insertion hole for fitting and positioning by tightening together with the body mounting hole of the guide body at least at one end side in the longitudinal direction of the guide.

The sliding contact guide for a transmission device, which is meant by the present invention, is either a fixed guide or a movable guide that guides or tensions while running a power transmission medium such as a chain or a belt in a sliding contact state. It doesn't matter.

In the present invention, the material of the synthetic resin constituting the guide main body is not particularly limited, but the sliding contact surface with the chain, belt, etc. functions as a shoe, wear resistance and lubrication. With excellent properties such as nylon 6 and nylon 6 marketed under the trade name nylon
So-called engineering plastics such as 6, nylon 46, wholly aromatic nylon and the like are preferable, and when strength is required, fiber reinforced plastics are preferable.

The material of the reinforcing plate is not particularly limited, but non-ferrous metals such as ferrous metals, aluminum, magnesium and titanium, engineering plastics excellent in guide bending rigidity and guide strength, fiber reinforced Plastic or the like is preferable. Further, the form of the reinforcing plate is not particularly limited as long as it can be reinforced by being fitted from the slit of the guide body,
For example, there is no problem even if the window is opened in the plate thickness direction to reduce the thickness, that is, the window portion having a reduced weight is provided.

[0013]

The sliding contact guide for a power transmission according to the present invention has the above-described device configuration, and therefore has the following unique action of the present invention. First, a synthetic resin is used as a guide main body provided with a shoe portion on which a transmission medium such as a running chain or belt slides in contact with a surface and a vertical plate-like portion provided on the back side of the shoe portion along the longitudinal direction of the guide. The reinforcing plate that is integrally molded and that reinforces the guide body is opened in the vertical end portion of the vertical plate-shaped portion and is fitted into the slit formed over the guide longitudinal direction, so that the engine, the drive device, and the like are A chain, a belt that is running because a transmission medium such as a chain or a belt that is attached to a transmission device comes into contact with the shoe portion of the guide body made of synthetic resin and slides in the longitudinal direction of the guide, so-called a sliding function. Appropriate tension is applied to the etc., and vibration and lateral shake generated in running chains, belts, etc. are suppressed.

The reinforcing plate is integrally molded with the guide body and is held by a plurality of snap locking means provided in the slit of the vertical plate-like portion so as to prevent the guide body from slipping off. Since the reinforcing plate for reinforcement is securely fixed in the slit of the guide body, vibration noise of the sliding contact guide for the transmission device due to rattling between the guide body and the reinforcing plate during traveling is suppressed. .

Further, the reinforcing plate is provided with an insertion hole for fastening and positioning together with the body mounting hole of the guide body at least at one end side in the longitudinal direction of the guide, so that the reinforcing plate is guided. It does not come off from the main body, and suppresses contact vibration between the guide main body and the reinforcing plate caused by the running chain, belt, or the like.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a sliding contact guide for a power transmission according to the present invention will be described with reference to the drawings. First, the first of the sliding contact guides for transmissions according to the present invention
In the embodiment, as shown in FIG. 1 to FIG. 4, the engine, the drive device, and the like are swingably mounted around a mounting shaft, and an appropriate tension is applied while a circulating chain is run in a sliding contact state. The present invention is embodied as a movable guide 100 for a transmission called a tensioner lever. FIG. 1 is an assembly view of a movable guide 100 for a transmission according to a first embodiment, and FIG. 2 is a movable guide 10 for a transmission.
It is an expanded version of the snap locking mechanism adopted in 0.
(A) is a perspective view of the snap locking means as viewed from the locking arm side, and (b) is a perspective view of the snap locking means as viewed from the engaging projection side. Further, FIG. 3 shows a movable guide 10 for a transmission device.
0 is an assembled cross-sectional view of FIG. 0, and FIG. 4 is a schematic view of a molding die used for the movable guide 100 for a transmission,
Is a schematic view seen from the XX cross section of FIG. 1, and (b) is a schematic view seen from the YY cross section.

The movable guide 100 for a transmission device of the first embodiment shown in FIG. 1 is a guide body 1 integrally molded of synthetic resin.
10 and a metal reinforcing plate 1 punched from a steel plate
A two-piece structure composed of 20 and 20 is provided, and the reinforcing plate 120 is incorporated and reinforced with respect to the guide main body 110 from the arrow direction.

Here, the guide body 110 has a shoe portion 111 having a sliding surface on which a traveling chain comes in contact and slides, and a vertical portion vertically provided on the back side of the shoe portion 111 along the longitudinal direction of the guide. The vertical plate-shaped portion 112 is formed with a plate-shaped portion 112, and the vertical plate-shaped portion 112 has a slit 112 that is open to the vertical end side in the longitudinal direction of the guide.
a, a boss portion 112c having a skeleton mounting hole 112b for attaching to a skeleton of an engine, a drive device, etc., a plurality of reinforcing ribs 112d for reinforcing the guide body structure, and a side wall of a skeleton of an engine, drive device, etc. not shown Tensioner abutting portions 112e that adjust the chain tension by abutting the tensioners attached to the respective tensioners are provided.

The most characteristic feature of the movable guide 100 for the transmission of the present embodiment is shown in FIGS.
As shown in FIG. 3, the guide main body 110 is integrally formed with snap locking means 113, and the snap locking means 113 is perpendicular to the guide longitudinal direction of the vertical plate-shaped portion 112. A hook-shaped locking arm 113 which is erected at two positions before and after the slit 112a opening to the end side and extended to one side of the vertical plate-shaped portion 112.
a and an engaging projection 113b projecting from the other side of the vertical plate-shaped portion 112, and as shown in FIG. 3, the locking arm 113a rotates to engage with the engaging projection 113b. Thus, the reinforcing plate 120 is prevented from coming off and is held.

Further, the molding die used for the movable guide 100 for the transmission of this embodiment will be described. As shown in FIGS. 4A and 4B, the molding division line L is used as a division reference plane. By adopting a simple molding die including the upper mold M1 and the lower mold M2, the molding load is reduced.

On the other hand, the reinforcing plate 120 has a slit 112 on the side opposite to the shoe portion 111 of the guide body 110.
The guide body 110 is fitted in from a to reinforce the guide body 110, and a frame mounting hole 112b of the guide body 110 is attached to the reinforcing plate 120 by a mounting bolt (not shown).
Since the insertion hole 121 that is fastened together and fitted and positioned is provided, the reinforcing plate 120 does not come off from the guide body 110 when it is attached to the side wall of the body of the engine.

The thus-obtained movable guide 100 for a transmission device according to the first embodiment of the present invention has a reinforcing plate 120 made of metal fitted in a slit 112a of a vertical plate-like portion 112, so that the movable guide 100 is running. Vibration generated in the chain,
Lateral runout can be suppressed, stable transmission of the chain can be ensured, and guide bending rigidity and guide strength comparable to those of conventional aluminum die-cast movable guides can be exhibited.

In addition, in the movable guide for the transmission of the first embodiment, the reinforcing plate 120 is integrally formed with the guide body 110, and a plurality of snap fasteners are installed in the slits 112a of the vertical plate portion 112. Since the reinforcing plate 120 is securely held in the slit 112a of the guide body 110 by being held by the stopping means 113, the guide plate 11 can be reliably fixed during traveling.
0 and the reinforcing plate 120 can suppress vibration noise caused by rattling, and can eliminate misalignment between the reinforcing plate 120 and the guide body 110 to reduce uneven wear between them. Since the allowable range of the molding accuracy and the assembly accuracy required between the guide body 110 and the reinforcing plate 120 is expanded, even an inexpensive synthetic resin material that is thermally deformable can be used, and the guide cost can be reduced. can do.

Moreover, when disposing of the movable guide for the transmission of the first embodiment, the engagement between the hook-shaped engaging arm 113a of the snap engaging means 113 and the engaging projection 113b is released. From the guide body 110 to the reinforcing plate 120
The guide body 1 can be operated by a simple operation of pulling out
10 and the reinforcing plate 120 can be separated and disassembled, which can contribute to recycling of parts for the transmission device.

Next, the second embodiment of the sliding contact guide for a transmission device according to the present invention is mounted so as to be swingable around a mounting shaft of an engine, a driving device or the like, and is in a slidable contact state with a chain traveling in circulation. Movable guide 20 for a transmission device called a tensioner lever for applying appropriate tension while traveling at
It is embodied as 0. Here, since the movable guide 200 for the power transmission of the second embodiment has the same guide structure as that of the first embodiment described above, the description thereof will be omitted, but the most characteristic snap of the present embodiment. Locking means 2
13 will be described based on an assembled sectional view of the movable guide 200 for the transmission shown in FIG.

That is, as shown in FIG. 5, the snap locking means 213 in the movable guide 200 for the transmission of the second embodiment is integrally formed with the guide body 210.
Vertical plate-shaped portion 212 formed on the guide body 210
A hook-shaped locking arm 213a extending to one side and an engaging protrusion 21 protruding from the other side of the vertical plate-like portion 212.
3b and. Further, the snap locking means 213 is formed with a convex pressing portion 213c that abuts the vertical end surface of the reinforcing plate 220 and presses the reinforcing plate 220 into the slit 212a.

In the movable guide 200 for the transmission device of the second embodiment thus obtained, the engaging arm 213a is rotated to engage the engaging projection 21 as in the first embodiment.
By engaging with 3b, the reinforcing plate 220 is prevented from coming off and is held, but in addition to this, the snap locking means 213 is provided with a convex pressing portion 213c. This convex pressing portion 213c more reliably suppresses the vibration noise of the sliding contact guide for the transmission device due to the rattling of the guide body and the reinforcing plate when the chain travels, and between the guide body 210 and the reinforcing plate 220. The allowable range of required molding accuracy and assembly accuracy can be further expanded.

Third Embodiment of Sliding Contact Guide for Transmission According to the Present Invention
The embodiment is for a transmission device called a tensioner lever that is swingably mounted around a mounting shaft of an engine, a drive device, or the like, and that applies a proper tension while running a circulating chain in a sliding contact state. It is embodied as the movable guide 300. Here, although the movable guide 300 for the transmission of the third embodiment is different in the arrangement form of the reinforcing ribs 312d from the first embodiment described above,
Since the guide structure is basically the same, the description thereof will be omitted, but the most characteristic snap locking means 313 of the present embodiment will be described with reference to the drawings.

That is, as shown in FIGS. 6 to 7, the snap locking means 313 in the movable guide 300 for the transmission of the third embodiment is one of the vertical plate-shaped portions 312 formed on the guide body 310. A hook-shaped locking arm 313a extending toward the side and an engagement protrusion 313b protruding on the other side of the vertical plate-shaped portion 312, and the guide tip end portion of the guide body 310 and the guide base end portion. Are integrally molded.

The movable guide 300 for the transmission of the third embodiment thus obtained is similar to the first embodiment described above, and the guide tip portion of the guide body 310 and
Locking arms 31 formed integrally with the base end of the guide
3a rotates to engage with the engaging protrusion 313b so as to hold the reinforcing plate 320 from the longitudinal direction of the guide and hold the reinforcing plate 320, which is generated between the guide body and the reinforcing plate when the chain travels. It is possible to more reliably suppress vibration noise of the sliding contact guide for the transmission device due to rattling in the longitudinal direction of the guide.

Further, the fourth embodiment of the sliding guide for a transmission according to the present invention is attached to the side wall of an engine, a driving device or the like, and the vibration of the chain is generated while the circulating running chain is running in the sliding contact state. It is embodied as a fixed guide 400 for a transmission device called a guide lever for preventing lateral shake. The fixed guide 400 for the transmission of the fourth embodiment shown in FIG. 8 has a two-piece structure composed of a guide body 410 integrally formed of synthetic resin and a metal reinforcing plate 420 punched from a steel plate. The guide plate 410 is reinforced by incorporating the reinforcing plate 420 in the direction of the arrow.

Here, the guide body 410 has a shoe portion 411 having a sliding surface on which the traveling chain contacts and slides, and a vertical portion provided on the back side of the shoe portion 411 in a vertical direction along the longitudinal direction of the guide. The vertical plate-shaped portion 412 is formed with a plate-shaped portion 412, and the vertical plate-shaped portion 412 has a slit 412 that is open toward the vertical end portion in the longitudinal direction of the guide.
a, a boss portion 412c having a skeleton attachment hole 412b for attaching to a skeleton such as an engine or a drive device, and a plurality of reinforcing ribs 412d that reinforce the guide body structure.

The most characteristic feature of the transmission device fixed guide 400 of the fourth embodiment is that it has snap locking means 413 integrally formed with the guide body 410, as shown in FIG. This snap locking means 413 is provided with the slit 41 which is open to the vertical end side along the guide longitudinal direction of the vertical plate-shaped portion 412.
The vertical plate-shaped portion 41 is installed at two places before and after 2a.
2, a hook-shaped locking arm 413a extending to one side and an engaging protrusion 4 protruding from the other side of the vertical plate-shaped portion 412.
As shown in FIG. 3, the locking arm 413a rotates and engages with the engaging protrusion 413b so that the reinforcing plate 420 is retained and held.

On the other hand, the reinforcing plate 420 has a slit 412 on the side opposite to the shoe portion 411 of the guide body 410.
The guide body 410 is fitted in from a to reinforce the guide body 410, and a frame mounting hole 412b of the guide body 410 is attached to the reinforcing plate 420 by a mounting bolt (not shown).
Since the insertion hole 421 that is fastened together and fitted and positioned is provided, the reinforcing plate 420 does not come off from the guide body 410 when it is attached to the side wall of the body of the engine.

The thus obtained transmission device fixed guide 400 according to the fourth embodiment of the present invention has the metal reinforcing plate 420 fitted in the slit 412a of the vertical plate-like portion 412, so that it is running. Vibration generated in the chain,
Lateral runout can be suppressed to ensure stable transmission of the chain, and the reinforcing plate 420 is prevented from slipping off by the snap locking means 413 at two positions before and after the slit 412a formed in the guide body 410. By being held, the reinforcing plate 420 is securely fixed in the state of being fitted into the slit 412a, so that it is possible to suppress vibration noise caused by rattling between the guide body 410 and the reinforcing plate 420 during traveling. In addition, since the allowable range of molding accuracy and assembly accuracy required between the guide body 410 and the reinforcing plate 420 is expanded, even an inexpensive synthetic resin material that is thermally deformed can be used. The cost can be reduced.

Moreover, when the movable guide for the transmission of the fourth embodiment is used for a long period of time and then disassembled and disposed, the hook-shaped locking arm 413a of the snap locking means 413 is used.
With the simple operation of releasing the engagement between the engaging protrusion 413b and the engaging protrusion 413b and pulling out the reinforcing plate 420 from the guide body 410, these can be separated and disassembled, which contributes to the recycling of parts for the transmission device. it can.

[0037]

Since the sliding contact guide for the power transmission of the present invention has the above-described device configuration, it has the following effects peculiar to the present invention. First, the chain to run,
A guide body having a shoe portion on which a transmission medium such as a belt contacts and slides on the surface and a vertical plate-like portion provided on the back side of the shoe portion along the longitudinal direction of the guide is integrally molded of synthetic resin, and the guide is formed. The reinforcing plate that reinforces the main body is opened in the vertical end portion of the vertical plate-shaped portion and is fitted into the slit formed along the longitudinal direction of the guide, so that an appropriate tension is applied to the traveling transmission medium. In addition, it is possible to suppress vibration and lateral vibration generated in the transmission medium during traveling, so that stable transmission traveling of the transmission medium can be ensured.

Since the reinforcing plate is integrally molded with the guide body and is held by the snap locking means at a plurality of positions provided in the slit of the vertical plate portion, the reinforcing plate is held. Since it is securely fixed while being fitted in the slit of the guide body, it is possible to suppress vibration noise of the sliding contact guide for the transmission device due to rattling between the guide body and the reinforcing plate during traveling,
It is possible to eliminate the misalignment between the reinforcing plate and the guide body and reduce uneven wear between them, and moreover, the allowable range of molding accuracy and assembly accuracy required between the guide body and the reinforcing plate is Since it is enlarged, even an inexpensive synthetic resin material that is thermally deformed can be used, and the guide cost can be reduced.

Further, the snap locking means is provided with a convex pressing portion for contacting the vertical end surface of the reinforcing plate to press the reinforcing plate into the slit, whereby the snap locking means is formed. In addition to the effect produced by the transmission sliding contact guide, vibration noise of the transmission sliding contact guide due to rattling between the guide body and the reinforcing plate during traveling can be more reliably suppressed.

Further, the reinforcing plate is provided with an insertion hole for tightening and positioning together with the body mounting hole of the guide body at least at one end side in the longitudinal direction of the guide. In addition to the effect of the sliding contact guide for a power transmission according to claim 1 or claim 2, the reinforcing plate does not come off from the guide body, and the guide body and the reinforcement are generated due to the running chain, belt, or the like. It is possible to suppress vibration between the plate and vibration noise caused thereby.

[Brief description of drawings]

FIG. 1 is an assembly view of a movable guide for a power transmission according to a first embodiment of the present invention.

2A and 2B are enlarged views of the snap locking means adopted in the first embodiment. FIG. 2A is a perspective view seen from the locking arm side of the snap locking means, and FIG. 2B is engagement of the snap locking means. The perspective view seen from the protrusion side.

FIG. 3 is an assembled sectional view of a movable guide for a transmission device according to a first embodiment.

4A and 4B are schematic views of a molding die used in the first embodiment, FIG. 4A is a schematic view seen from the XX cross section of FIG. 1, and FIG.
Is a schematic view seen from the YY cross section.

FIG. 5 is an assembled sectional view of a movable guide for a power transmission according to a second embodiment of the present invention.

FIG. 6 is an assembly view of a movable guide for a transmission device according to a third embodiment of the present invention.

FIG. 7 is a locking operation diagram of the snap locking means adopted in the third embodiment of the present invention.

FIG. 8 is an assembly view of a transmission device fixed guide according to a fourth embodiment of the present invention.

FIG. 9 is an assembly view of a conventional movable guide for a transmission.

FIG. 10 is an enlarged view of the vicinity of a guide tip in a conventional movable guide for a transmission device.

FIG. 11 is an enlarged view of the vicinity of a guide base end in a conventional movable guide for a transmission device.

FIG. 12 is a cross-sectional view taken along the line ZZ of FIG.

FIG. 13 is a schematic view of a molding die used in a conventional movable guide for a transmission device.

[Explanation of symbols]

100, 200, 300, 400, 500 ... Sliding contact guide 110, 210, 310, 410, 510 for transmission device ... Guide body 111, 211, 311, 411, 511 ... Shoe portion 112, 212, 312, 412, 512 ... Vertical plate-shaped portions 112a, 212a, 312a, 412a, 512a
... Slits 112b, 312b, 412b, 512b ... Body mounting holes 112c, 312c, 412c, 512c ... Boss portions 112d, 212d, 312d, 412d, 512d
・ ・ ・ Reinforcing ribs 112e, 312e, 512e ・ ・ ・ Tensioner contact portion 512f ・ ・ ・ Window portion 512g ・ ・ ・ Tongue piece 512h ・ ・ ・ Bulging portion 512i ・ ・ ・ Cut head 113, 213, 313, 413 ... Snap locking means 113a, 213a, 313a, 413a ... Locking arms 113b, 213b, 313b, 413b ... Engaging projection 213c ... Convex pressing part 120, 220, 320, 420, 520 ... Reinforcing plates 121, 221, 321, 421, 521 ... Insertion hole 521 ... Recess L ... Molding dividing line M1 ... Upper mold M2 ... Lower mold m1, m2 , M3, m4 ・ ・ ・ Mold S ・ ・ ・ Gap

Claims (3)

[Claims] 1. A guide body comprising a shoe portion on which a transmission medium such as a running chain, a belt or the like contacts and slides on a surface, and a vertical plate-like portion provided on the back side of the shoe portion in the longitudinal direction of the guide. A sliding contact guide for a transmission device, which is integrally molded of synthetic resin and has a reinforcing plate that reinforces the guide body and is fitted into a slit formed in the vertical end of the vertical plate-shaped portion and formed in the guide longitudinal direction. In the transmission gear slide, the reinforcing plate is integrally molded with the guide body, and is retained and held by snap locking means at a plurality of positions that are installed in the slit of the vertical plate-shaped portion. Contact guide. 2. The snap pressing means is formed with a convex pressing portion that abuts on a vertical end surface of the reinforcing plate and presses the reinforcing plate into the slit. Sliding contact guide for transmission. 3. The reinforcing plate is provided with an insertion hole which is fastened together with the body mounting hole of the guide body to be fitted and positioned for positioning at least one end side in the longitudinal direction of the guide. The sliding contact guide for a transmission device according to claim 1 or 2.