JPH04176717A - Spike device for automobile - Google Patents

Abstract

PURPOSE:To improve reliability by arranging spike pins which can advance and retreat in the radial direction in radial form on a body on which wheel installation holes are formed and connecting spike pins with a sliding body which is installed in slidable and lock-enabled state in the circumferential direction on the body by a damper. CONSTITUTION:In the case of the traveling on a normal road surface, spike pins 8 are accommodated in a device body 2, and locking pins 27b are inserted into locking holes 23, and a sliding body 15 is fixed. On a frozen road, the lock pin 27b is pushed out from the locking hole 23 by a tool 32 consisting of a cross bar 31 and a pushing pin 31, and the sliding body 15 is turned in the C direction by the tool 32. Accordingly, the spike pin 8 is projected in the C direction. When the locking hole 23 of the sliding body 15 comes to the position of a pin hole 24a, the tool 23 is pulled out, Then, the locking pin 27a is inserted into the locking hole 23, and the sliding body 15 is fixed, and the spike pin 8 projects in the radial form, and a spike state is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automobile spike device (hereinafter simply referred to as a "spike device") used on frozen roads.

[Conventional technology]

In cold regions, roads tend to freeze, and when driving a car on icy roads, it is necessary to use tire chains or spiked tires.

However, tire chains are complicated to attach and detach from the tires, and they also generate large amounts of vibration and noise while driving. There was a problem in that dust pollution occurred.Therefore, spike devices have been proposed as an alternative to these.

As shown in FIG. 7, this spike device (33) is attached to the wheel/% bar (H) in parallel with the wheel (W),
Pressure resistant tube built inside the casing (34)
By supplying and discharging air from a hose (36) to 35), the tread body (39) with spikes (38) on the tread surface (37) was made slidable in the vertical direction. . (Utility Model Application Publication No. 1-123702).

[Problem to be solved by the invention]

However, in the above-mentioned conventional spike device (33), not only is the pressure tube (35) and hose (36) easily damaged when air is repeatedly supplied and discharged, but also the tread body (36) is easily damaged in the event of air leakage. 39) could not be made to stand out.

The present invention has been made in view of the problems of the prior art described above, and an object thereof is to provide a spike device that can be used reliably on icy roads without failure.

[Failure to solve the problem]

In order to achieve the above object, the spike device of the present invention includes:
A device body with mounting holes for the wheels, spike pins arranged radially on the device body and movable in the radial direction, and a sliding body arranged radially inward of the spike pins and slidable in the circumferential direction. , a locking mechanism that fixes the sliding body, and a damper that connects each spike pin and the sliding body.

[For production]

Since both ends of the damper are rotatably connected to the spike pin and the sliding body, the spike pin moves forward and backward in the radial direction by sliding the sliding body in the circumferential direction.

When the spike device is attached to the hub together with the wheel, and the spike pin is most protruded from the device body, the spike pin and the damper are approximately in a straight line.

When the sliding body is fixed in this position by the locking mechanism, the tips of the spike pins bite into the frozen road surface to provide a reliable grip, and the reaction force from the road surface is absorbed by the damper, causing excessive damage to the spike pins and sliding body. Application of force is prevented.

On roads that are not frozen, if you release the fixation, let the sliding body slide, and then fix the sliding body again at the position where the spike pin is recessed into the device body, you can drive normally using only the tires, even if vibrations are added. No spike pins will stick out.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIGS. 1 to 3, the spike device (1) has a plurality of mounting holes (3) in the center of a roughly dish-shaped device body (2), and is mounted on a wheel (W) using a nut (N). ) can be detachably attached to the wheel hub (H) in parallel to the outside of the wheel hub (H).

The outer layer (4) of the device main body (2) has a large number of holes (4a
) are formed at equal intervals, and the bushes (5) are attached to the return bows (4a). In addition, the above-mentioned reply (
A large number of holes (6a) corresponding to 4a) are provided to make a reply (6a).
) with the bushing (7) attached to the ring (6) on the outer periphery (
4) and arranged concentrically.

The hole (4a) in the outer circumference (4) and the hole (6) in the ring (6)
In a), a pair of bushings (5) and (7) located on a straight line in the radial direction form a set, and a spike pin (8) is slidably inserted into each bushing (5), (7).

The spike pin (8) consists of a base (9) and a hard tip (10) fixed to its tip, and as shown in FIG. Hole (ll
Form a connecting part (12) provided with a).

An annular slide base (14) with a shelf (13) formed at the negative end is disposed inside the ring (6), and the shelf (13) is connected to the shelf (13).
3), an annular sliding body (15) is slidably arranged, and an annular pressing plate (16) is brought into contact with the sliding body (15), and this pressing plate (16) is attached to the slide base (14).
) with a bolt (18) and a substantially inverted-shaped fixture (17).

The sliding body (15) has a circumferential groove (19) on the outer peripheral side.
) and pass through the groove (19) to insert the spike pin (8).
Provide the same number of connecting holes (1lb) as the number of connecting holes.

The damper (20) is a shock absorber with gas or oil sealed inside, and although its structure is well known and will not be described in detail, one end is connected to the connection part (12) of the spike pin (8), and the other end is connected to the sliding body. Connecting pins (21a) are fitted into the grooves (19) of (15) and connected to the connecting holes (Ila) and (llb), respectively.
(21b) is inserted, both ends of the damper (20) are rotatably connected, and the sliding body (15) is slid, the spike pin (8) is moved in the radial direction through the damper (20). Let it advance and retreat.

In addition, (22a) and (22b) are connecting pins (21a)
, (21b) is a C-shaped retaining ring.

Next, the lock mechanism will be explained.

As shown in Fig. 4 (b) and Fig. 5, the sliding body (15
), there are lock holes (2
3).

On the other hand, the spike pin (8) is attached to the slide base (14).
) protrudes from the device body (2), insert a pin hole (24a) in a position that matches the lock hole (23),
In addition, when the spike pin (8) is recessed into the device body (2), the spike pin (8) is placed at a position that matches the lock hole (23).
A pin hole (24b) is provided.

Note that FIG. 4(b) shows the pin hole (24a).

The pin holes (24a) and (24b) are holes of the same shape that penetrate in the axial direction and have a stepped portion (25), and are holes that respectively have springs (26a) and (26b) and lock pins (27a).
, (27b) is placed.

The lock pins (27a), (27b) have a flange (28) at the lower end, and a spring (26a),
(26b) on the slide base (14) shelf (13
) direction, but the flange (28) is biased toward the stepped portion (25).
It is prevented from popping out by coming into contact with.

Furthermore, the presser plate (16) has the above-mentioned opening/pocket hole (23).
), that is, from the pin hole (24a) to (24b
) is provided with an elongated hole (29).

With the above configuration, the locking mechanism has an opening and a locking pin (2) in the locking hole (23) when the locking pin (8) protrudes.
7a) is inserted, and when the spike pin (8) is retracted, the opening/spike pin (27b) enters the lock hole (23) and fixes the sliding body (15) in its respective position.

Note that a cover of an appropriate shape may be attached to the outer surface of the spike device (1) in order to protect the above-mentioned parts and to decorate the device itself.

Next, the operation of the spike device configured as described above will be explained.

First of all, when driving on normal roads that are not frozen,
As shown in Figures 5 and 6A, spike pins (8
) is housed in the device body (2), and the sliding body (15)
is fixed.

When using the spike device (1) on an icy road, for example, as shown in Figure 6 (b), cross-shaped /<-
Using the tool (32) with bushing pins (31) formed in the four locations of (30), first insert the bushing pins (31) of the tool (32) into the lock hole (23) into which the lock pin (27b) is inserted. Push it in.

Since the length of the bushing pin (31) is the same as the thickness of the sliding body (15), the locking pin (27b) comes out of the locking hole (23) in this state, compressing the spring (26b) and compressing the slide base (14). ) into the pin hole (24b).

Next, when the tool (32) is turned in the direction of arrow C, the sliding body (1
5) moves, the spike pin (8) is pushed out in the radial direction (in the direction of the arrow), and the spike pin (8) is in the most protruding state, that is, the lock hole (23) of the sliding body (15) is aligned with the pin hole (24a).
) When the tool (32) is removed when the position is reached, the lock pin (27a) is pushed by the spring (26a) and enters the lock hole (23), fixing the sliding body (15). (Figure 6 (c)).

In addition, when it is no longer necessary to use the spike device (1), perform the operation opposite to the above and use the spike pin (8).
) for storing and fixing.

By the way, in the above embodiment, the lock hole.

Although the lock pins and the like are arranged in a cross direction, the number and position may be arbitrarily determined, and the shape and fixing direction of the sliding body are not limited to the above embodiments, and can be changed as appropriate. .

〔Effect of the invention〕

Since the spike device of the present invention has the above-mentioned configuration, it is not only easy to attach and detach and provide a strong grip on icy roads, but also greatly superior in durability to conventional spike devices.

Furthermore, since it does not use air pressure or electricity, there is no breakdown and it can be used reliably when needed, greatly improving safety.

Moreover, since the mechanism is simple, even if parts are damaged, they can be replaced easily, which is an excellent effect.

[Brief explanation of the drawing]

1 and 2 show the spike device of the present invention, FIG. 1 is a front view showing the protruding state of the spike pin, FIG. 2 is a front view showing the stored state of the spike pin, and FIG. 3 is the spike device. FIG. 4 (a) is a partially cutaway end view of the vehicle mounted on the wheel hub, and FIG.
B) is a partial sectional view taken along line B-B in Fig. 1, Figs. 5 and 6 A, @, and (C) are explanatory diagrams of the operation of the spike device, and Fig. 7 is the main part of the conventional spike device. FIG. (1)・・・・・・・・・・・・・・・Spike device (2)・・・・・・・・・・・・・・・・Device body (3)・・・・・・・・・・・・・・・Mounting holes (4
)・・・・・・・・・・・・・・・Outer periphery (4a)
, (6a)...hole (51(7) ・
・・・・・・・・・Butshu (6)・・・・・・・・・
・・・・・・Ring (8)・・・・・・・・・・・・・・・
・・・・・・Spike pin (9)・・・・・・・・・・・・
・・・・・・Base (10)・・・・・・・・・・・・
......Hard tip (Ila), (llb) One connecting hole (12)...Connecting part (13)...・・・・・・・・・・・・Shelf (14
)・・・・・・・・・・・・・・・・Slide base (15)・・・・・・・・・・・・・・・・Sliding body (16)・・・・・・・・・・・・・・・・・・Press plate (I7)・・・・・・・・・・・・・・・Fixing tool (18)・・・・・・・・・・・・・・・・・・Bolt (19)・・・・・・・・・・・・・・・−Groove (20)・・・・・・・・・・・・・・・・Damper (
21&), (21b) - Series connection pin (22a),
(22b) ・= -C type retaining ring (23)...
......Lock hole (24a) (24b) -=
Bottle hole (25)・・・・・・・・・・・・・・・Step part (2
8a), (26b)...Spring (27a)
), (27b)...Lock pin (28)...
・・・・・・・・・・・・・・・Tsubabe (29)...
・・・・・・・・・・・・・・・Elongated hole (30)・・・・・・
・・・・・・・・・・・・Bar (31)・・・・・・
・・・・・・・・・Butushpin (32)・・・・・・
......... Tool area l Figure 2 Figure area 3 Figure 4 l l + 5th opening r'1 Figure 6 (A) (D) (C) Figure 7

Claims (1)

[Claims] This is a spike device that can be detachably attached to a hub together with a wheel, and includes a device body with a mounting hole for the wheel, spike pins that are arranged radially on the device body and can move forward and backward in the radial direction, and a spike device that is attached in the radial direction of the spike pin. A spike device for an automobile comprising: a sliding body disposed on one side and slidable in the circumferential direction; a locking mechanism for fixing the sliding body; and a damper connecting each spike pin to the sliding body.