JPS62122806A - Antislip device for automobile tire - Google Patents

Abstract

PURPOSE:To facilitate the installation and removal of an antislip device, by making a lock wire which is fixed at one end to a locking means and is made free at the other end, pierce through the locking means in an edge member of an antislip device made of resilient materials so that the lock wire is engaged and disengaged by means of the locking means. CONSTITUTION:A lock disc 5 in a locking means 4 is inclined leftward from its neutral position to set up an installation condition. In this condition, the side of a locking hole 50 is made into contact with the lock wire 32, and therefore, the inclination of the disk 5 is reduced by a contracting force A exerted to an edge member 4, and therefore, the wire 32 is moved in the contracting direction to stabilize the installation condition. Meanwhile, the expanding force of the edge member in the direction reverse to the direction of the contracting force X is effected in the direction in which the inclination of the lock disc 5 is increased so that the lock wire 32 is strongly pressed in the locking hole 50, being inhibited from moving, and is therefore, the condition of installation is not loosened. When the lock disc 5 is moved rightward from the neutral position by means of a manipulating lever 8, the action of the locking hole 50 is reversed so that the edge member 3 is elongated and is therefore possible to be removed. Thus, it is possible to facilitate the antislip device.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-slip device for automobile tires that can be easily attached to and detached from a tire.

(Prior Art) Conventionally, as an anti-slip device for automobile tires, a device as shown in Japanese Patent Publication No. 56-18407, for example, is known. This consists of a net as an annular anti-slip member that covers the tire, an edge member attached to both ends of the anti-slip member along both sides of the tire, and an edge member attached to both ends of the edge member. This edge member is composed of a coil spring and a lock wire disposed through the coil spring, and both lengthwise ends of this lock wire are connected to the locking means. The anti-slip member is attached to and detached from the tire by the attachment and detachment of the attachment and detachment by this attachment means. With this structure, the edge member is attached to the state due to the compressive force of the coil spring, and this state is stably maintained by the locking means. However, when attaching or detaching the anti-slip member, the edge member must be pulled by hand. It is necessary to stretch it against the force of the coil spring, and this requires a large amount of force, which has the disadvantage that it is cumbersome to work with.

(Purpose of the Invention) This invention was made to eliminate such conventional drawbacks, and the installation of the anti-slip device prevents the shrinking force from being applied to an elastic body such as a coil spring or a rubber-like body of the edge member. When the device is attached and removed, the device is installed in a state that can be stably maintained by the locking means, and the edge member can be maintained at a predetermined length when the device is attached or detached. This allows for easy attachment and detachment work.

(Structure of the Invention) A first gist of the present invention is to provide an annular anti-slip member that covers a tire, an edge member attached to both sides of the anti-slip member along both sides of the tire, and an edge member that is attached to both sides of the anti-slip member. and locking means attached to both ends of the edge member to form an annular edge member, and the edge member includes an elastic body and a lock wire passing through the elastic body or disposed in parallel with the elastic body. One lengthwise end of the lock wire is fixed to the locking means, the other end passes through the locking means and becomes a free end, and the locking means for locking the free end is , - a lock disk having a locking hole through which the lock wire passes through, and a holding member that holds the lock disk in a state where it can be tilted in two directions on both sides from a neutral position perpendicular to the lock wire;
A disk spring that biases the lock disk in a direction that maintains the inclination even if the lock disk is inclined in any direction from a neutral position, and an operating lever that tilts the lock disk to change the direction of inclination. It is something that exists.

A second gist of the present invention is to provide an annular anti-slip member that covers a tire, an edge member attached to both sides of the anti-slip member along both sides of the tire, and an annular anti-slip member attached to both ends of the edge member. and a locking means for forming the edge member into an annular shape, the edge member comprising an elastic body and a lock wire passing through the elastic body or disposed in parallel with the elastic body, and the lock wire Both ends in the length direction pass through locking means to form free ends, and the locking means for locking each free end includes a pair of lock disks having a locking hole through which the lock wire passes. , a holding member that holds each lock disk in a state where it can be tilted in two directions on both sides from a neutral position perpendicular to the lock wire, and each lock disk maintains its inclination even if it is tilted in either direction from the neutral position. The device is equipped with a pair of disk springs that urge each lock disk in a direction, and an operating lever that simultaneously tilts each lock disk to change the direction of inclination of each.

(Example) FIG. 4 shows a state in which the anti-slip member 2 is attached to the tire 1 of an automobile. The anti-slip member 2 is formed in an annular shape so as to cover the tie ψ1, and edge members 3 are attached to both sides of the anti-slip member 2 along both sides of the tire 1. Locking means 4 are attached to both ends of the edge member 3, forming the edge member 3 into an annular shape. Although only one side is shown in the drawings, the other side is similarly constructed. Note that the anti-slip member is not limited to the above-mentioned net-like member, but may also be a so-called ladder-type member.

As shown in FIG. 1, the edge member 3 consists of a coil spring 30 and a lock wire 32 disposed through the coil spring 30, and one end 33 of the lock wire 32 is connected to a locking means 4. It is locked to a lock wire bin 11, which will be described later, and the other end passes through the locking means 4 and is placed at an appropriate position in the coil spring 30, forming a free end. This free end is formed with a twisted portion to prevent it from being removed from the locking hole, which will be described later.

As shown in FIGS. 1 to 3, this locking means 4 includes a lock disk 5 for locking the lock wire, a pair of holding plates 6a as holding members that hold the lock disk 5 tiltably, 6b, a disk spring 7 that tilts the lock disk 5 around 1, an operating lever 8 for changing the direction of inclination of the lock disk 5, a lever spring 9, each bin 10, 11, 12 described later, and these members. It is composed of a casing 13 that holds the. The casing 13 includes a pair of front and rear members 13a that are divided in advance,
It is formed by joining 13b. Sleeves 14 are integrally formed at both ends of the casing 13, and the ends of the coil springs 30 are press-fitted into the sleeves 14 to be coupled. Further, in the upper part of the front side member 13a of the casing 13, an elongated hole 15 through which the operating lever 8 is inserted is formed over a predetermined range.

The lock disk 5 has a locking hole 50 through which the free end side of the lock wire 32 passes. In the figure, the lock wire 32 is formed to have a rectangular cross-section, and the locking hole 50 is formed to have a rectangular shape that is slightly larger than the lock wire 32, but the cross-sectional shape of the lock wire 32 is not limited to the rectangular shape but is circular. The locking hole 50 may also have a shape corresponding to the lock wire 32. Further, the lock disc 5 is provided with a protrusion 51 for engaging the disc spring 7 at its upper end, and a protrusion 52 for engaging the operating lever 8 at its front side. There is.

Further, the holding plates 6a and 6b are held in the casing 13 in a state where they face each other at a predetermined distance in the front and back, and a fan-shaped cutout hole 60 is formed in each of the holding plates 5a and 6b. The front and rear sides of the lock disc 5 are fitted into the lock disc 5.

Above the center of the cutout hole 60, both retaining plates 6a
, 6b is attached, and the lower end of the disc spring 7 whose upper end is fixed to the disc spring bin 10 is engaged with the protrusion 51 of the lock disc 5.

In this way, as shown in FIGS. 1 and 5, the lock disk 5 becomes tiltable around its lower end within the area in which the sector-shaped cutout hole 60 is formed, so that the lock wire 32
It is held so that it can be tilted in two directions on both sides from a neutral position perpendicular to , and is biased by the disc spring 7 in a direction to maintain the tilt even when tilted in either of these two directions on both sides. ing.

A lock wire bin 1 to which one end 33 of the lock wire 32 is fixed is attached to the lower side of the holding plates 5a and 6b.
1 is installed. Further, a lever bin 12 is attached near the lower ends of the holding plates 6a and 6b.

The operation lever 8 is inserted into the elongated hole 15 of the casing 13 so that its upper end protrudes outside the casing 13, and its lower end is pivotally supported by the lever pin 12. It is possible to rotate within the range of A linking hole 80 for the lock disc 5 is formed in the middle portion of the operating lever 8, and a projecting piece 52 of the lock disc 5 is inserted into the linking hole 80.

The linking hole 80 is formed to be larger than the protruding piece 52 to some extent, so that when the operating lever 8 is maintained at a predetermined position, some tilting of the lock disk 5 is allowed, while the operating lever 8 is When it is rotated, the movement is transmitted to the lock disk 5 so that the direction of inclination of the lock disk 5 can be changed.

The lever spring 9 is attached to the lever bin 12, and its tip is fixed to the operating lever 8.
It is biased in a certain rotational direction around the lever bin 12, and at the same time is also pressed in the axial direction of the lever bin 12.

Furthermore, a notch 15a for locking the operating lever is formed at the end of the elongated hole 15 of the casing 13, and the operating lever 8
When the lever 8 is rotated to the end of the elongated hole 15, the operating lever 8 is moved to the notch 1 by the pressing force of the lever spring 9.
5a.

Next, the operation of this device will be explained.

When the anti-erasing member 2 is attached to the tire 1 as shown in FIG. 4, as shown in FIG. 1 and FIG. 6(A),
By tilting the lock disc 5 of the locking means 4 to the left side in the figure from the neutral position, the anti-slip member 2
can be in a stable mounting condition. That is, in this state, the upper and lower sides of the locking hole 50 contact the lock wire 32 due to the inclination of the lock disk 5 biased by the disk spring 7, but the edge member 3 shrinks as shown by the arrow X with respect to the lock wire 32. Directional force (rightward force in the diagram)
When this occurs, the inclination of the lock disk 5 becomes smaller and the pressure contact force of the upper and lower sides of the locking hole 50 against the lock wire 32 becomes weaker, so the lock wire 32 moves in the direction of the arrow X and the edge member 3 This causes the anti-slip member 2 to move to a stable attached state.

Furthermore, when a force is applied in the direction of stretching the edge member 3 (in the opposite direction of the arrow This prevents the lock wire 32 from moving, prevents the edge member 3 from being stretched, and maintains the stable attachment of the anti-slip member 2.

In order to remove the anti-slip member 2 from the tire 1 in the above state, it is first necessary to extend the edge member 3.

In this case, as shown in FIG. 6(B), the operating lever 8
By rotating the lock disc 5, the lock disc 5 is tilted to the right in the figure from the neutral position. In this state, when a force in the direction of extending the edge member 3, that is, a force in the opposite direction to the arrow The pressure contact force against the lock wire 32 becomes weaker, and the lock wire 32 is thereby allowed to move freely. Therefore, in this state, the edge member 3 can be stretched against the force of the coil spring 30. When the hand is released after being stretched to a predetermined length, the restoring force of the coil spring 30 causes the edge member 3 to contract, ie, a force in the direction of arrow X is applied, but this force causes the lock disc 5 to tilt significantly. Since the locking hole 50 is pushed in one direction, the upper and lower sides of the locking hole 50 are pressed against the locking wire 32 and braked, thereby maintaining a predetermined stretched state. Therefore, the anti-slip member 2 may be removed from the tire 1 in this state.

Also, in order to attach the anti-slip member 2 to the tire 1, the edge member 3
The edge member 3 is stretched against the force of the coil spring 30 by stepping on an appropriate position with the foot and pulling the other side (for example, the portion of the locking means 4) with the hand. This stretching operation is the same as the above-mentioned removal, and since the edge member 3 can be held in the stretched state as described above, no force is required when fitting the anti-slip member 2 to the tire 1. This work can be done easily. After attaching to the tire 1, if the operating lever 8 is rotated again to the state shown in Fig. 1 and Fig. 6 (A), the mounting state can be maintained stably as described above. Ru.

In the above embodiment, an example was described in which one end of the lock wire 32 is fixed to the locking hand vi4, and only the other end is allowed to pass through the lock disk, thereby allowing expansion and contraction and locking. , the other end of the lock wire 32 may also be a free end. For example, as shown in FIG. 7, the locking means 4 includes a pair of lock discs 5,
5' is provided so that both ends A and B of the plug wire 32 can be respectively locked by the lock discs 5, 5', and the double-end plug discs 5, 5' can be simultaneously tilted by the operating lever 8. All you have to do is make it possible for them to do so. That is, in the embodiment shown in this figure, the holding plate 6a,
5b, sector-shaped cut-out holes 60.60' are formed point-symmetrically with respect to the lever bin 12, and each cut-out hole 60.6
0', each of the lock discs 5.5' is tiltably held, and a disc spring 7.7' is provided for each lock disc 5.5'.

Then, each end A, B of the lock wire 32 is inserted into a locking hole 50.50' formed in each lock disc 5.5'.
I am making you faithful. Further, the operating lever 8 is pivotally supported at its intermediate portion by the lever pin 12, and on both sides of the operating lever 8, a connecting hole 80.80' is formed for the protruding piece 52.52' of the lock disc 5.5'.

According to this structure, when the anti-slip member 2 is attached to the tire 1 in the state shown in FIG. Each end A of the lock wire 32 is tilted in a predetermined direction.

If a force in the direction of contraction of the edge member 3 shown by arrows X and Y is applied to B, the inclination of each lock disk 5, 5' becomes smaller and movement of the lock wire 32 in the contraction direction is allowed,
If a force in the direction of extension opposite to the arrows X and Y is applied, the inclination of each lock disc 5.5' increases and a large braking force is applied.

Further, when the anti-slip member 2 is removed from the tire 1, the operating lever 8 is rotated to simultaneously tilt the lock discs 5, 5' so that the lock discs 5, 5' are in the state shown in FIG. 8(B). By changing the inclination direction of ', the braking force is weakened against the force in the direction of extension of the edge member 3, and both ends A and B of the lock wire 32 can be freely shifted in the direction of extension of the edge member 3. Therefore, a large braking force acts on the force in the direction of contraction of the edge member 3 as indicated by arrows X and Y. Therefore, with this structure as well, the same effect as the structure shown in FIGS.
Compared to a structure in which only one end is free, the moving distance of the tip of the lock wire 32 during attachment and detachment is reduced, so there is an advantage that the edge member 3 can be expanded and contracted more smoothly.

In addition, in the edge member 3 shown in each of the above embodiments, the lock wire 32 is arranged in the coil spring 30, but by holding the lock wire between a pair of coil springs, etc., the lock wire and the coil spring etc. The edge member may have a structure in which the elastic bodies run parallel to each other.

(Effects of the Invention) As explained above, in the anti-slip device of the present invention, the direction of inclination of the lock disc is changed by operating the operating lever in the locking means that locks the end of the lock wire of the edge member. Accordingly, the locking state is switched between a state in which a large braking force is applied only to a force in a direction in which the edge member extends, and a state in which a large braking force is applied only to a force in a direction in which the edge member contracts. ing. Therefore, although it has a relatively simple structure, it is possible to maintain stable attachment when the anti-slip member is attached to the tire, and when attaching or removing the anti-slip member, the edge member can be stretched to a specified length. This makes it possible to easily attach and detach the device by maintaining the same condition.

[Brief explanation of drawings]

FIG. 1 is a side view of a locking means of a device showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line I-II in FIG. 1, and FIG.
The figure is an exploded perspective view of the locking means, Figure 4 is a side view of the locking means attached to the tire, Figure 5 is a perspective view of the main parts, and Figures 6 (A) (B).
) is an explanatory diagram of the operation of the locking means, FIG. 7 is a side view of the main part showing another example of the locking means, and FIG. 8 (A>(B) is an explanatory diagram of the operation when this locking means is used. 1... Tire, 2... Anti-slip member, 3... Edge member, 4... Locking means, 5, 5'... Lock disc, 6a. 6b... Retaining plate, 7 .7'...Disc spring, 8...Operation lever, 13...Casing, 30...
...Coil spring, 32...Lock wire. Patent applicant Kami A4 Steel Wire Industry Co., Ltd. No. 4
Figure 5 Figure 'J6

Claims (1)

[Claims] 1. An annular anti-slip member covering the tire, an edge member attached to both sides of the anti-slip member along both sides of the tire, and an annular anti-slip member attached to both ends of the edge member. and a locking means for forming the edge member into an annular shape, and the edge member includes an elastic body and a lock wire passing through the elastic body or disposed in parallel with the elastic body, and the edge member is made of an elastic body and a lock wire disposed through the elastic body or running parallel to the elastic body. One lengthwise end is fixed to the locking means, the other end passes through the locking means and becomes a free end, and the locking wire passes through the locking means for locking this free end. a lock disc having a locking hole; a holding member that holds the lock disc in a state where it can be tilted in two directions on both sides from a neutral position perpendicular to the lock wire; a disc spring that biases the lock disc in a direction that maintains its inclination even when
An anti-slip device for an automobile tire, comprising: an operation lever that tilts the lock disk to change its direction of inclination. 2. An annular anti-slip member that covers the tire, an edge member attached to both sides of the anti-slip member along both sides of the tire, and an annular edge member attached to both ends of the edge member. the edge member includes an elastic body and a lock wire extending through the elastic body or running parallel to the elastic body; pass through the locking means and each have a free end;
The locking means for locking each free end includes a pair of lock disks having a locking hole through which the lock wire passes, and each lock disk is moved in two directions on both sides from a neutral position perpendicular to the lock wire. a holding member that holds the lock discs in a tiltable state; a pair of disc springs that bias each lock disc in a direction that maintains its inclination even if the lock discs are tilted in any direction from a neutral position; and each of the lock discs An anti-slip device for an automobile tire, comprising an operation lever that tilts the discs simultaneously and changes the direction of inclination of each disc.