JPS6218308A - Mounting and demounting device for chain for snow road for car tire - Google Patents

Abstract

PURPOSE:To facilitate the mounting and demounting of a chain for snow road by installing an accommodating case onto the chassis of a car, opposed to the driving wheels, and winding-accommodating the chain which elastically holds the laying shape onto the outer periphery of a tire and advancing and retreating the chain by a driving device. CONSTITUTION:A chain 1 for snow road is made by connecting a pair of opposed side bands 2 and 2 having the sectional surface in T-figure form by the connecting bands 3... which cross the outer peripheral surface of a tire and has a sufficient length. The side band 2 is made of plastic material, and a leaf spring for maintaining itself in spiral form for reinforcement is buried inside in the longitudinal direction. The accommodating case 18 for the chain 1 is installed onto a so chassis so as to be opposed to a driving wheel W, and a driving device 22 including a pair of trailing pinions 24 and 24 meshed with a rack 6 formed onto each side band 2 is installed onto a chain advancing and retreating part 20 extended in the direction of tangential line to the cylindrical body 19 of the case 18. A channel shaped guide frame 26 which can turn around a supporting shaft 27 is installed onto the advancing and retreating part 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a snow-covered chain attaching/detaching device which is installed in an automobile and attaches/dismounts a snow-covered chain to/from its tires.

Conventionally, snow-covered chains are attached to automobile tires by placing the chains on the road in front of or behind the wheels of the automobile.
This is usually done by slowing down the vehicle and positioning the wheels on the chain, then wrapping the chain around the outer circumference of the tire and connecting both ends, and removing it by doing the reverse operation.

However, since attaching and detaching snow chains to automobile tires is generally done on roads in extremely poor environmental conditions, attaching and detaching them is not only extremely difficult, but also stains the body and clothes, requiring inexperienced workers to do the job. There were problems such as it took a long time to attach and detach.

In addition, the present inventor has previously proposed a cross punt attaching/detaching device for attaching/detaching a snowy road cross punt to/from an automobile tire by operating from the driver's seat using the driving force of the automobile (Japanese Patent Publication No. 53-37802). This attachment/detachment device has the advantage that the cross punt can be attached and detached from the tire simply by operating from the driver's seat, but since the device is attached to the outer surface of the wheel,
There were problems such as large structural restrictions due to the mounting position.

[Problems to be Solved by the Invention] The present invention aims to simplify the device for attaching and detaching the snow road check 7 to and from the tire by operation from the driver's seat, while reducing the restrictions imposed by the mounting position. This is a problem that needs to be solved.

[Means for Solving the Problems] The snow-covered chain attaching/detaching device of the present invention is provided with a storage case for the snow-covered chain 7 on the body of the automobile, facing the running wheels, and the storage case is provided with a storage case for the snow-covered chain 7. A snowy road check 7 that elastically maintains its shape and is attached to the outer periphery is wound and stored, and the above-mentioned check 7 is
The guide is provided with a drive device for making the wheel appear and retract from the storage case, and is located between the storage case and the wheels, with one end located close to the feeding/input part of the check 7 of the storage case, and the other end movable toward and away from the outer circumference of the tire. The above problem has been solved by providing a rotatable frame and allowing the driving of the drive device to be operated from the driver's seat.

[Operation] Rotate the guide frame with one end located close to the chain feeding/unloading part of the storage case, and bring the other end close to the outer circumference of the tire, and at the same time drive the drive device of the storage case by operation from the driver's seat. When the vehicle is driven slowly and the wheels are rotated in the direction in which the snowy road check 7 is sent out, the check 7 sent out from the storage case by the drive device is guided by the guide frame and wound around the outer periphery of the tire. In this case, since the chain 7 is elastically held in a shape that is attached to the outer circumference of the tire, the chain 7 does not come off from the tire outer periphery.Next, both ends of the chain are connected, and the guide frame is rotated. so that it is separated from the outer surface of the tire so that it does not interfere with driving.

Removing the chain 7 from the tire is the same as when installing it, except that both ends of the chain are uncoupled, one end of the chain 7 is inserted into the guide frame, and the drive device and wheels are rotated in the opposite direction from when installed. be.

[Example] The drawings show an example of the present invention, and the snow road check 71 is a second embodiment of the present invention.
As shown in the figure, the cross sections facing each other are T-shaped (
It is formed of a pair of side bands 2, 2 (see Fig. 3) and band-shaped connecting bands 3°3, . . . that connect them at appropriate intervals.

The side band 2 is made of, for example, plastic that has strength even at low temperatures, and has a plate spring 5 embedded in its longitudinal direction for reinforcing itself and retaining its spiral shape. This leaf spring 5 elastically wraps the side band 2 around the outer periphery of the automobile tire T, and at the same time, when the side band 2 is stored in the storage case 18, it is automatically wound into a spiral shape. It is for the purpose of In addition, the chain plate spring 5 is
It has protrusions 7 that protrude from the side band 2 at appropriate intervals in the longitudinal direction, and the end of the connecting band 3 is inserted into the attachment hole 8 bored in the protrusion 7 through a cylindrical support 8. The parts are rotatably connected. Furthermore, both ends of the side bands 2.2 are provided with connecting fittings or other connecting means that are connected to each other when attached to the tire T.

Like the side bands 2, the connecting band 3 is made of plastic, etc., which has strength even at low temperatures, and if necessary, piano wire 12 is buried inside for reinforcement, and the surface is abraded, making it suitable for use on icy and snowy roads. It is molded by embedding a hard metal spiral wire or the like that forms the claws, and its surface has appropriate irregularities to prevent slipping on icy and snowy roads. Further, the connecting band 3 has flexibility and its length is made to be larger than the width of the tire T to some extent so that when the check 71 is attached to the tire T, it also covers a part of both sides of the tire T. is formed.

As shown in FIG. 1, a rack 8.6 can be formed on the side band 2, if necessary, in connection with a drive device to be described later.

On the other hand, the storage case 18 of the Che 71 is attached to the car body.
It is attached so as to face the running wheels W by appropriate means. The storage case 18 includes a substantially cylindrical main body 19 and a feed-in/out part 20 for the check 7l extending in the tangential direction of the main body 18, and is formed to have a width substantially the same as the width of the wheel W.

As shown in FIGS. 1 and 3, in the feed-in/out section 20, a drive pinion 23 rotatably provided on the vessel wall and a pair of side bands 2, 2 of the check 71 are arranged opposite to each other, respectively. , and a driven pinion 24, 24, one of which meshes with the drive pinion 23.
2 is provided. Each pair of driven pinions 24.24
are in mesh with the racks 6.6 of the side bands 2, 2 located between them, and the drive pinion 23 is in mesh with one of the driven pinions 24, but a friction wheel may be used instead of these pinions. can. In this case, check 7 above.
There is no need to provide a rack on the side band 2.

The drive pinion 23 is an independent motor or an appropriate power transmission mechanism that transmits power from the engine, rotational power of the wheels, etc., and is driven in synchronization with the rotation of the wheels, and its driving and stopping can be operated from the driver's seat. It is composed of

In the main body 18 of the storage case 18, the above-mentioned check 7l is wound and stored in a spiral shape by the elastic force of a leaf spring, and when the check 7l is in the stored state, the tip of the rack 6.8 of the side band 2.2 is It meshes with the driven pinion 24.24.

Further, as shown in FIGS. 1 and 4, a channel-shaped guide frame 28 is provided between the tire T and the feed-in/out portion 20 of the storage case 18, and a support shaft provided close to the feed-in/out portion 20 is provided. 27
It is attached so that it can rotate around the guide frame 26.
The tire T side of is formed in a shape that straddles the tire T.

Although not shown in the drawings, the guide frame 2C is made movable between the upper storage position (the chain line position in Figure 1) and the lower operating position (the solid line position in Figure 1) by appropriate means, and is also repositioned. When it is locked in the upper storage position, it is held in a position above the wheel W that does not hinder running, and when it is locked in the lower operating position, one end is stored. It is held in close proximity to the delivery/input section 20 of the casing 18, and in such a manner that the other end straddles the tire T and is close to its outer periphery.

The movement of the guide frame 28 between the upper storage position and the lower operation position can be operated from the driver's seat or manually, similarly to the drive device 22.

Next, the operation of the above embodiment will be explained.

In normal running conditions, the check 71 is wound and stored in the main body le of the housing 18 in a spiral manner, and the ends of the racks 8, 8 on the side bands 2°2 are engaged with the driven pinions 24, 24. , the guide frame 26 is locked in the upper storage position.

To attach the check 7l to the tire T from this state, the guide frame 2B is rotated downward by operation from the driver's seat or manually to lock it in the downward operating position, and one end of the guide frame 26 is moved to the storage case 18. It is located close to the feed-in/out section 20, and the other end is located close to the outer periphery of the tire T.

Next, when the drive device 22 is driven by an operation from the driver's seat and at the same time the vehicle is slowed down and the wheels W are rotated in the direction in which the chain 7 is sent out, the rack 6.8 meshing with the driven pinion 24.24 causes the chain to move. 7l is sent out on the guide frame 28 in the direction of the tire T and wound around the outer periphery of the tire T. After the rack 6.6 is disengaged from the driven pinion 24.24, most of the check 7l is already wound around the outer circumference of the tire T, so as the tire T rotates, the check 7l
l is wound around its outer circumference.

When this winding is completed, both ends of the chain 71 are connected to each other by appropriate connecting means provided at the ends of the chain 7l. Interconnection of both ends of the chain 1 is extremely easy because the chain 1 is wound around the outer periphery of the tire τ by the leaf spring 5, and there is no need to lift the ends of the chain 1 from the road surface.

Furthermore, by operating the guide frame 26 from the driver's seat or manually rotating it upward and locking it in the upper storage position, it is possible to prevent the guide frame 26 from coming into contact with the tires T due to vibrations during driving. .

To detach the chain 1 from the tire T, after releasing the connection between both ends of the chain 1 by the above-mentioned connecting means, insert one end of the chain 1 slightly into the guide frame 26, and in this state, connect the drive device 22 and the wheels W. The chain 1 is stored in the storage case 18 by rotating it in the opposite direction to the above-mentioned direction. This operation
The mounting operation is substantially the same as the above-described mounting operation except that the moving direction of the chain 1 is reversed. Since the chain 1 is held in a shape that is attached to the tire T by the leaf spring 5, the chain 1 is wound spirally and stored in the storage case 18 without getting tangled.

Note that the detection of the completion of attachment and detachment of the chain 1 and the stopping of the drive can be performed based on the output of a mechanism for detecting the position of the chain 1, for example, provided in the storage case 18 or the like. Further, if necessary, it is also possible to detect in the drive device 22 or the like whether the chain I is being attached or detached, and to instruct the driver and the outside through an indicator based on the electric signal.

[Effects of the Invention] In the present invention, since the chain detachment device is attached to the vehicle body, a larger volume of the vehicle body can be utilized compared to the case where the chain detachment device is attached to the outer surface of the wheel. Therefore, the chain detachment device is hardly subject to structural restrictions. It is also easy to install.

In addition, not only can the attachment/detachment device have a simple structure consisting of a chain storage case and a guide frame, but a rotatable guide frame can be placed between the chain storage case and the tire so that the other end is relative to the outer circumference of the tire. Since the housing is designed so that it can be moved in and out of the vehicle, there is no need to install the housing in close proximity to the tires, so the housing and the guide frame do not interfere with the space between the vehicle body and the wheels caused by the expansion and contraction of springs that support the vehicle body, steering, etc. It does not become an obstacle to the relative movement of the

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a partial plan view of a snowy road check 7, and FIG. 3 is a sectional view taken along line A-A in FIG. FIG. 4 is a plan view of the guide frame. 1. Chain for snow roads, 18. Storage case, 22. Drive device, 26. Guide frame. W fist/wheel, T...tire.

Claims (1)

[Claims] 1. A storage case for a chain for snowy roads is provided on the body of the automobile so as to face the running wheels, and a chain for snowy roads is wound around the storage case, and the chain elastically maintains its shape so as to adhere to the outer periphery of the tire. A driving device is provided for storing the chain and for moving the chain in and out of the storage case, and between the storage case and the wheel, one end is located close to the chain feeding/input part of the storage case, and the other end is in contact with the outer periphery of the tire. A chain attaching/detaching device for automobile tires on snowy roads, characterized in that a removable guide frame is rotatably provided, and the driving of the drive device can be operated from the driver's seat.