JP2525687B2 - Automotive wheel anti-slip device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automobile wheel slip prevention device having a substitute function of a tire chain mounted on an automobile wheel.

"Prior Art" Generally, when the vehicle is placed in the snow during winter, the vehicle runs with tire chains attached to the wheels to prevent slipping. However, the attachment and detachment of this tire chain is troublesome.
Therefore, various snow tires that do not need to be equipped with the current tire chains have been developed and used. However, when actually driving on a winter road, it cannot be said that snow tires alone have a sufficient anti-slip effect,
Also, when traveling on a highway, it may be required to attach a tire chain due to changes in weather conditions.

"Problems to be Solved by the Present Invention" In view of the conventional problems as described above, the present invention causes the wheels of a vehicle to rotate independently without any subordinate to the slip prevention auxiliary wheels during normal traveling. On the other hand, when desired, it can be rotated in cooperation with the wheels of the vehicle to give a starting force to the vehicle for traveling forward.
An object of the present invention is to provide an anti-slip device for a wheel of an automobile, which is capable of stably moving up and down the auxiliary wheel for slip prevention (meaning that it does not shake left and right, front and back).

[Means for Solving the Problems] In order to achieve the above-mentioned object, an anti-slip device for a vehicle wheel according to the present invention includes a transmission disk 6 rotatably provided on an axle 5 of a wheel 3 and the transmission disk 6. Disc part to be inserted into and removed from the disc 6
7a and an engaging portion 7b continuously provided to the disc portion, and
Similarly, a clutch 4 including a sliding member 7 slidably provided on the axle 5 and a first cylinder device 13 installed at an appropriate location of the vehicle 1 for operating the clutch.
On the other hand, on the other hand, a support plate 21 fixedly hung on the frame 24 and having a guide hole 25 for guiding the support shaft 22 in the vertical direction on the lower side, and the support plate 21 through the support shaft. An anti-slip auxiliary wheel 20 that is rotatably provided and integrally has an inner driven disk 23, a transmission disk 6 and a driven circle so that the auxiliary wheel is rotated by the rotational force of the axle 5. Power transmission means 27 hung on each of the plates 23, and second lifting and lowering movements of auxiliary wheels installed at appropriate places of the vehicle.
A cylinder device 28, and a guide plate 31 suspended from the frame 24 so as to guide the second operating rod 29 that extends and contracts in the vertical direction of the second cylinder device.
And, it comprises a connecting rod 33 for integrally connecting the protruding tip portion of the second operating rod and the support shaft 22.

Further, the vehicle wheel slip prevention device according to the present invention includes a transmission disc 6 rotatably provided on the axle 5 of the wheel 3, a disc portion 7a which is fitted into and removed from the transmission disc 6, and the disc portion. A clutch 4 having a continuous engaging portion 7b and also having a sliding member 7 slidably provided on the axle 5, and a clutch 4 installed at an appropriate position of the vehicle 1 for operating the clutch. And a first cylinder device 13, and a support plate 21A fixedly hung on the frame 24 and having a guide hole 25A for vertically guiding the support shaft 22A formed on the lower side thereof, and the support plate 21A. Is rotatably provided via the support shaft, and
Auxiliary wheel 20A for slip prevention integrally having a driven disk 23 on the inner side, and power applied to the transmission disk 6 and the driven disk 23 so that the auxiliary wheel is rotated by the rotational force of the axle 5. And the support plate 21.
Has a plurality of through holes 44 and 45 located in the vertical direction.
A protrusion 40 of a pivotal support portion 40 is formed, and an operating rod 41 for raising and lowering the auxiliary wheel 20A having a guide elongated hole 43 for guiding the support shaft 22A at one end is provided with a second support shaft 42. The auxiliary wheel 20A is pivotally supported via the fixing rod 46 which is moved up and down by the turning operation of the operating rod 41 and which penetrates the through hole and the through hole formed at the other end of the operating rod. It is characterized in that it is set at a predetermined position.

[Examples] Hereinafter, the present invention will be described in detail with reference to Examples shown in the drawings.

 1 to 4 show an embodiment of the present invention.

1 is a vehicle. In this embodiment, an ordinary passenger car is shown, but a truck such as a dump truck may be used.

Reference numeral 2 denotes an anti-slip device for a vehicle wheel 3 attached to the vehicle 1. The slip prevention device 2 is constructed as shown in FIGS. 2 and 3, and is mounted on the left and right pair of the vehicle 1.

That is, 4 is a clutch that is provided on the axle 5 of the wheel 3 and that has the transmission disc 6 and the sliding member 7 that is fitted into and removed from the transmission disc 6. The transmission disc 6 is rotatably provided on the axle 5 immediately inside the wheel 3 via a ball bearing, and has a peripheral groove 8 having a V-shaped cross section formed on the outer periphery thereof. A plurality of pins 9 are provided on the inner wall surface of the transmission disc 6 so as to project therefrom. On the other hand, the sliding member 7 has a disc portion 7a having a fitting hole 10 facing the transmission disc 6 and joined to the pin 9.
And a circumferential groove that is continuous with the disk portion 7a and is provided at an appropriate location on the outer peripheral portion.
Engaging portions 7b having 11 are respectively formed. The sliding member 7 is in a sliding pair relationship with the axle 5 due to the mechanism of the key 12 and the groove.

Next, 13 is a first cylinder device installed at an appropriate position of the vehicle 1 for operating the clutch 4. Reference numeral 14 is an operating rod that is inserted into the cylinder 15 and moves back and forth in the horizontal direction by the pressure medium. An operating portion that engages with the circumferential groove 11 of the engaging portion 7b of the sliding member 7 is provided at the protruding tip portion of the operating rod 14.
16 are provided. Reference numeral 17 is a first pressure medium supply device for supplying a pressure medium such as gas or liquid to the cylinder 15 via a guide pipe 18.

Next, reference numeral 20 denotes a slip prevention auxiliary wheel that is rotatably provided on a plurality of support plates 21 via a support shaft 22 and integrally has a driven disk 23 inside. The support plate 21 is fixedly hung on the frame 24 of the vehicle 1 and the like, and an arc-shaped guide hole 25 for guiding the support shaft 22 is formed on the lower side thereof. A peripheral groove having a V-shaped cross section is formed on the outer peripheral portion of the driven disk 23.
26 are formed.

Next, 27 is a power transmission means such as a V-belt and a chain that are respectively wound around the transmission disc 6 and the driven disc 23 so that the auxiliary wheel 20 for preventing slippage can be rotated by using the turning force of the axle 5. is there. As the power transmission means 27, a V belt is used in this embodiment.

Next, 28 is a second cylinder device installed at an appropriate position of the vehicle for moving the slip preventing auxiliary wheel 20 up and down. Reference numeral 29 is a second operating rod which is inserted into the second cylinder 30 and is vertically expanded and contracted by the pressure medium. A sliding portion 29a, which is slidably fitted in a vertical groove 32 of a guide plate 31 vertically provided on the frame 24, is formed at a protruding tip end portion of the second operating rod 29. 33 is the second operating rod 29 and the support shaft 22
Is a connecting rod for integrally connecting and. Reference numeral 34 is a second pressure medium supply device for supplying a pressure medium such as gas or liquid to the second cylinder 30 via a guide pipe 35.

[Operation] In the above configuration, when the slip prevention wheel 20 is to be used, first, the operating rod 29 of the second cylinder device 28 is lowered by the second pressure medium supply device 34. Then, when the second operating rod 29 extends, the slip preventing auxiliary wheel 20 is pressed against the road surface 36 via the connecting rod 33 and is grounded. At this time, the second operating rod 29 is guided to the guide plate 31 via the sliding portion 29a, while the support shaft 22 is guided to the guide hole 25 of the support plate 21.

Next, the operating rod 14 of the first cylinder device 13 is extended by the first pressure medium supply device 17. Then, the sliding member 7 of the clutch 4 moves and the fitting hole 10 of the disc portion 7a thereof moves.
The pin 9 of the transmission disk 6 is inserted into. Then, when the axle 5 rotates, the slip prevention auxiliary wheel 20 rotates in the same direction as the wheel 3 via the power transmission means 27.

On the other hand, when the slip prevention auxiliary wheel 20 is not used,
The operation mode is the reverse of that described above. That is, the operating rod 14 of the first cylinder device 13 is contracted, and the sliding member 7 is separated from the transmission disc 6 of the clutch 4. Then, even if the axle 5 rotates, the rotational force is not transmitted to the driven disk 23. Then, when the operating rod 29 of the second cylinder device 28 is contracted, the slip preventing auxiliary wheel 20 rises via the connecting rod 33 as shown in FIG.

"Different Embodiments" Next, the embodiments shown in FIGS. 5 to 8 will be described.

In the embodiment shown in FIGS. 5 to 8, the main difference from the embodiment of the present invention is the slip prevention auxiliary wheel.
The point is that the 20A can be raised and lowered manually. That is, 21A is a pair of support plates having arcuate guide holes 25A on the lower side thereof, and semicircular pivotal support portions 40 are formed projectingly on these support plates 25A, 25A. 41 is a pair of support plates 25A, 25A
An operating rod pivotally supported via a second support shaft 42, and a guide elongated hole 43 for guiding the support shaft 22A is formed at one end of the operating rod 41. 44 and 45 are pivotal support portions of the support plates 25A and 25A for setting the slip prevention auxiliary wheel 20A at a predetermined position.
A plurality of through holes are formed above and below 40, respectively.

At the other end of the operating rod 41, there is formed a through hole which can coincide with the through holes 44 and 45 as shown in FIG.

In the above structure, when the slip prevention auxiliary wheel 20A is to be used, the operating rod 41 is rotated in the counterclockwise direction indicated by the arrow as shown in FIG. 6, and the fixing rod 46 is moved upward. Insert it into the through hole 44 and stop it appropriately. At this time, the slip prevention auxiliary wheel 20A descends.

On the other hand, when the slip prevention auxiliary wheel 20A is not used, as shown in FIG. 8, the operating rod 41 is rotated in the clockwise direction shown by the arrow, and the fixing rod 46 is inserted into the lower through hole 45 and appropriately stopped. At this time, the slip prevention auxiliary wheel 20A rises.

"Effects of the Invention" As is apparent from the above description, the present invention has the effects listed below.

(1) When the wheels are snow tires, in combination with this, the effect of preventing the wheels from slipping can be sufficiently enhanced.
In the case where the wheels are so-called ordinary tires, the effect of preventing slip can be expected when starting on a steep slope or when traveling on a soft ground.

(2) Since it becomes a substitute for the tire chain, the work of attaching and detaching the tire chain to and from the wheel as in the related art becomes unnecessary.

(3) Since the cylinder device is used as the lifting device for the slip prevention auxiliary wheels, the pressure medium supply device is operated at a desired time in response to weather and road conditions, and the slip prevention auxiliary wheels are pushed down to the running surface. It can also be lifted from the running surface.

In addition, a slip prevention auxiliary wheel is axially supported by a support plate having a guide hole for guiding the support shaft in the vertical direction, and
Since the operating rod is pivotally supported by the support plate so that the support shaft can be raised and lowered, the slip prevention auxiliary wheel can be manually moved up and down and appropriately set at a predetermined position.

(4) Since the guide plate vertically provided on the frame is provided so as to guide the second operating rod which extends and contracts in the vertical direction of the second cylinder device, even if the cylinder is downsized, The auxiliary wheel for slip prevention can be stably moved up and down (meaning that it does not shake left and right, back and forth).

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. Specifically, FIG. 2 is a schematic explanatory view when the slip prevention auxiliary wheels are descending, FIG. 4 is a schematic explanatory view when the slip prevention auxiliary wheels are rising, and FIGS. The drawings are schematic explanatory diagrams showing different embodiments of the present invention. In addition,
FIG. 6 is a schematic explanatory view similar to FIG. 2, and FIG. 8 is a schematic explanatory view similar to FIG. 3 ... Wheels, 5, 5A ... Axle, 4 ... Clutch, 6 ... Transmission disc, 7 ... Sliding member, 8, 11, 26 ... Circumferential groove, 13, 28 ... Cylinder device, 14 , 29 ...... Operating rod, 15, 30 ...... Cylinder, 17, 34 ...... Pressure medium supply device, 20, 20A …… Auxiliary wheel for slip prevention, 21, 21A …… Support plate, 22, 42 …… Support shaft , 23 ...... driven disk, 25, 25A ...... guide hole, 27 ...... power transmission means, 31 ...... guide plate, 33 ...... coupling rod, 40 ...... pivot support, 41 ...... operating rod, 43 ...... Guide long hole, 46 …… Fixing rod.

Claims (2)

(57) [Claims] 1. A transmission disc 6 rotatably provided on an axle 5 of a wheel 3, a disc portion 7a that is fitted into and removed from the transmission disc 6, and an engagement portion 7b that is connected to the disc portion. A clutch 4 having a sliding member 7 which is also provided on the axle 5 so as to be slidable, and a first cylinder device 13 installed at an appropriate position of the vehicle 1 for operating the clutch. On the other hand, a support plate 21 fixedly hung on the frame 24 and having a guide hole 25 for guiding the support shaft 22 in the vertical direction on the lower side, and a support plate 21 that rotates around the support plate via the support shaft. A slip-preventing auxiliary wheel 20 that is movably provided and integrally has a driven disk 23 inside, and a transmission disk 6 and a driven disk so that the auxiliary wheel is rotated by the rotational force of the axle 5. twenty three
The power transmission means 27 respectively hung over the second cylinder device, a second cylinder device 28 for raising and lowering auxiliary wheels installed at an appropriate place of the vehicle, and a second cylinder device for vertically expanding and contracting the second cylinder device. A guide plate (31) suspended from the frame (24) so that the operating rod (29) can be guided, and a connecting rod (33) for integrally connecting the protruding tip portion of the second operating rod and the support shaft (22). Anti-slip device for automobile wheels consisting of. 2. A transmission disc 6 rotatably provided on an axle 5 of a wheel 3, a disc portion 7a which is fitted into and disengaged from the transmission disc 6, and an engagement portion 7b which is connected to the disc portion. A clutch 4 having a sliding member 7 which is also provided slidably on the axle 5, and a first cylinder device 13 installed at an appropriate position of the vehicle 1 for operating the clutch. On the other hand, a support plate 21A fixedly hung on the frame 24 and having a guide hole 25A for guiding the support shaft 22A in the vertical direction on the lower side, and a support plate 21A which is rotated by this support plate via the support shaft. Auxiliary wheel 20A for slip prevention which is movably provided and integrally has a driven disk 23 inside, and a transmission disk 6 and a driven disk so that this auxiliary wheel is rotated by the rotational force of the axle 5. 23 and the power transmission means 27 that are respectively hung on the support plate 21, A pivot support portion 40 having a plurality of through holes 44 and 45 respectively located therein is formed in a protruding manner, and in this pivot support portion, a guide long hole 43 for guiding the support shaft 22A at one end portion is formed.
An operating rod 41 for raising and lowering the auxiliary wheel 20A is pivotally supported via a second support shaft 42, and the auxiliary wheel 20A is connected to the operating rod 41A.
The wheel of an automobile, which is set in a predetermined position by a fixing rod 46 which is moved up and down by a rotating operation of the and which penetrates the through hole and the through hole formed at the other end of the operating rod. Anti-slip device.