JPS5923601Y2 - Girdle attachment structure to rubber wheels - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a structure for attaching a girdle to a rubber wheel.

A girdle is constructed by connecting a number of units in which lug plates are hung over two sashiko-row links in a ladder-like manner, and this girdle is wrapped around the outer circumference of a rubber wheel. It is often adopted as a means of improving propulsion in wet fields, etc.

By the way, the means for wrapping this girdle around the rubber wheel is as follows.
Since the girdle is simply wrapped around the outer circumference of the rubber wheel and tightened, and there is no other suitable means to firmly fix it, the girdle located on the tread surface deforms as the rubber wheel rotates. However, in particular, the non-sticks that make up the side members of the girdle rubbed against the rubber tire part, causing damage to the tire part.

Therefore, when the girdle is wrapped around a rubber tire, a bulge is formed on the inner surface of the link that partially recesses the tire. This eliminates the above-mentioned drawbacks by cutting off contact with

Next, the embodiment shown in the drawings will be described.

B is a rubber wheel, which has the same structure as the conventional one, in which a rubber tire b is wrapped around a rim 1, air can be taken in and out from an air plug 2, and a slight lug 3 is integrally formed around the rubber tire b. .

A is a girdle constructed by connecting a large number of lug bodies a, and each lug body a is constructed by attaching a wide lug plate 5 to both links 4 and 4', but both non-knots 4 and 4' are Each of the links 4, 4' is made of an elongated plate and is formed so as to be able to be joined to both sides of the rubber tire b, and a bulge 4a that is long in the longitudinal direction is provided on the inner surface of the center portion of both links 4, 4'. A biased part 6 biased toward the outside is formed at one end of each link 4', a hole 7 is bored at the end of the biased part 6, and a hole 7 is formed at the other end of both links 4, 4'. is formed by fitting a pin 8 that can be inserted into the hole 7.

Also, the bases 9 and 9' on both sides extending from the wide lug plate 5 that spans both links 4 and 4' to one end side are joined to the outer surface of the central part of both links 4 and 4' and fixed by welding, but the lug plate 5
is shaped so as to extend at a gentle inclination angle with respect to the extending direction of both links 4, 4', and a bent edge 10' standing upward is formed at a curved edge 10 continuous to both bases 9°9'. hand,
This curved edge 10 is provided so as to be joined to the circumferential surface of the rubber tire b, and a bent edge 11 rising downward is formed around 3 of the lug plate 5 which is wider than the rubber tire b, and a plate surface of the lug plate 5 is formed. U-shaped rib 12 that protrudes upward
form.

The pins 8 of both links 4, 4' in each lug body a are inserted into the holes 7 to connect them freely, but the pins 8 are fixed to one of the links 4, 4' by welding W to prevent them from coming off. 7
When the lug bodies are connected, only the lug body a at one end has a hook 7' that can be held on the pin 8 in the part that will become the hole 7.
, and both links 4 near the hook 7',
A hole 13 is bored in the part 4', and a nut 14 is fixed inside, and a hook 7' and a hole 14 are made in the separate plate 15.
3, forming a hole 16.16' corresponding to the nut 14.
A bolt 17 is provided to be screwed into.

In addition, when the girdle A having the above structure is wrapped around the rubber wheel B, each lug plate 5 extends outward from the rubber wheel B in a direction inclined with respect to the tangential direction, as shown in FIG. The adjacent lug plates 5 are arranged so that their front and rear end portions overlap vertically, that is, in the grounded state, the adjacent lug plates 5 overlap as shown by the diagonal lines in FIG.
, 5 are arranged close to each other.

However, when wrapping girdle A around rubber wheel B,
As shown in Figure 10, lay out and align the girdle A on the ground, place the rubber wheel B above one end of the girdle, wrap the girdle A around the rubber wheel B, and rotate the girdle A around the pins 8 and 8. Both links 4 and 4' of each moving lug body a are placed on both sides of the rubber tire b so that the curved edges 10 of the lug plate 5 are aligned with the circumferential surface of the rubber tire b. After removing the air from the rubber tire b, the girdle A can be easily wrapped around the shrunken rubber tire b.
After winding, both hooks 7' on the lug body a at the end
, 7' to the corresponding pins 8 and 8 in the state shown in FIG. It can be installed by tightening it.

In this way, girdle A is attached to rubber wheel B from which air has been removed.
When the rubber tires b are wound and connected, air is introduced into the air plug 2 to inflate the rubber tire b, and the circumferential surface of the inflated rubber tire b contacts the curved edge 10 of each lug plate 5 and presses it outward. Each lug plate 5 is supported by a rubber tire b and protrudes outward in an inclined direction, and the girdle A is attached to a rubber wheel B so as not to come off.

When these wheels are attached to, for example, a binder and run through a wet field, each lug plate 5 rotates in the direction of arrow A as shown in FIG. Links 4.4.4', 4 of both lug plates 5, 5 which are supported by the circumferential surface of the rubber tire b, apply ground pressure, press the rubber tire b, tilt, and touch the ground below.
' rotates around the pins 8, 8 and the relative angle θ between the two changes, while each lug plate 5, 5 is given sufficient buoyancy and operates by exerting a traction force.

In this state, further treading pressure is applied with a part of the next lug plate 5 superimposed on the trail where the preceding lug plate 5 applied treading pressure,
As shown by diagonal lines in FIG. 13, a state is created in which the vehicle rotates while applying tread pressure twice on the same surface, which allows it to run against wet fields while keeping the tread hard, resulting in good running performance.

In addition, each lug plate 5 that performs such a traveling action is supported by the rubber tire b as described above, but if the amount of air taken in and taken out from the air plug 2 is adjusted, that is, the air pressure is adjusted,
The inclination of the lug plate 5 as it makes contact with the ground changes and can be adapted to the degree of wetland, and by making the same adjustment when running on the road, it is possible to run the vehicle with less vibration.

Each link 4.4 of the girdle A wrapped around the rubber wheel B is connected to both sides of the rubber tire b and always moves, but the bulges 4a, 4a of both links 4, 4' are as shown in FIG. It comes into contact with both sides of the rubber tire b in a pinching manner without causing any damage.

As described above, since this invention has the above-mentioned configuration and functions, the following effects can be expected.

First, a bulge is formed on the inner surface of both links to recess both side surfaces of the rubber tire, and the amount of bulge of this bulge is at least adjusted to the upper and lower edges where the side surface of the rubber tire constitutes the edge of the link. Although it was set so that it would not touch the girdle, it deformed as the rubber wheel rotated.
Even if the sides of both links and the rubber tire rub against each other, the rubber tires are floating at the edges (upper and lower edges) of both links, which are most susceptible to damage, but there is no contact and no damage occurs.

Further, by providing such a bulge on the inner surface of both links, the cross-sectional shape of the link becomes higher than that of a flat link, and the link can be made strong against bending and the like.

Furthermore, since the link is in contact with the rubber tire by partially recessing it, the reaction force means that both are fixed with a strong preload, and the adhesion force between the two is: It is much stronger than something that is simply in face-to-face contact.

When the link and the rubber tire rub against each other and try to move relative to each other, this means that the positions of these recesses have to be changed one after another, creating a large amount of resistance. There is less rubbing.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the wheel with girdle wrapping, Fig. 2 is a side view of the lug body, Fig. 3 is its plan view, Fig. 4 is its perspective view, and Fig. 5 is a side view of the wheel. The figure is an enlarged view of a part of Fig. 1, Fig. 6 is a plan cross-sectional view of the link part, Fig. 7 is an exploded view of a part of it, Fig. 8 is a front view of the main part, and Fig. 9 is the part. 10 is an explanatory diagram of the girdle installed state, 1st
FIG. 1 is an explanatory diagram of the girdle attached state, FIG. 12 is an explanatory diagram of the operation of FIG. 1, and FIG. 13 is an explanatory diagram. B...Rubber wheel, 4,4...Link,
5. Song/Lag board, a...Lag body, A...
・Girdle, 4a... curved bulge.

Claims (1)

[Scope of utility model registration request] A girdle A is constructed by pivotally connecting units 1 to 2 in which a lug plate 5 is hung over two sashiko rings 4 and 4' in the form of a ladder, and this girdle A is also wrapped around the outer periphery of a rubber tire b of a rubber wheel B. In this configuration, a bulge 4 is provided on the inner surface of both the sunks 4, 4' to partially recess both side surfaces of the rubber tire b.
a, 4'a, and these bulging parts 4a, 4'
The amount of bulge in a is 1. A structure for attaching a girdle to a rubber wheel, characterized in that the side surface of the rubber tire b is set to such an extent that at least the side surface of the rubber tire b does not come into contact with the upper and lower edges of the link 4.4'.