JPH07223416A - Stopper metal fitting fir tire chain and tire chain - Google Patents

Abstract

PURPOSE:To facilitate attachment/removal of a tire chain by connecting end of the chain in one end of the first metal piece, journalling the second metal piece having the other end ring hook part in the other end of the first metal piece, and sliding the ring by the rotation of the second metal piece so as to engage the ring in a recessed part of the first metal piece. CONSTITUTION:A ring 34 in one end of a tire chain is engagingly stopped in a through hole 36 in the first arm part 33 of the first metal piece 32, while the second metal piece 38 is journalled in the end part of the second arm part 35, which forms an L- shape with the first arm part 32 and provides an engagingly stopping recessed part 37, by means of a shaft 40. On the other hand, in the second metal piece 38, a hook part 44 hooking a ring 46 in the other end of the tire chain is arranged at the tip of the first arm part 42, while a stopper piece 48 is arranged in the side edge part, and the second arm part 43 forms an L-shape with the stopper piece 48. The ring 46 is hooked in the hook part 44 adequately opened by means of the stopper piece 48, and the second arm part 43 and the second metal piece are rotated together, and consequently, the ring 48 is slid to be engagingly stopped in the engagingly stopping recessed part 37. Therefore, a tire chain can be attached/removed only by the rotation of the second metal piece 38, so that work is faciliated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire chain stopper which can be easily attached to and detached from a tire and a tire chain having the stopper attached thereto.

[0002]

2. Description of the Related Art Various types of fasteners for tire chains have been proposed. Fig. 4 shows the most common and popular fastener (JIS type). The stopper 10 has a substantially S-shaped metal piece 14 attached to a chain ring 12 on one end side of a tire chain so as to be rotatable on one end side. The tip of the metal piece 14 is formed in the hook portion 16, and the recessed portion 18 in the middle is formed as the locking portion. A locking ring 20 (FIG. 5), which is partially cut away, is movably provided on the chain ring 12.
According to this fastener 10, the tip end side of the metal piece 14 is inserted into the chain ring 22 on the other end side of the tire chain to position the end portion of the chain ring 22 in the recess 18 (see FIG.
Solid line), and then the metal piece 14 is rotated in the direction of arrow A until the hook portion 16 comes out slightly above the chain ring 12, and then the locking ring 20 is moved in the direction of arrow B.
Is hooked on the locking ring 20 so that both ends of the chain are connected. When the chain is attached to the tire, a tensile force on the side opposite to the arrow A acts on the chain ring 22.
The hook portion 16 is locked to the locking ring 2
It never goes off.

[0003]

However, there is a problem to be solved in the above-described conventional fastening member 10 in that it is not easy to attach and detach the chain to the tire. That is, the metal piece 14 is rotated to move the hook 16 to the chainring 1 of the fastener 10 on the inside of the tire as described above.
It is very difficult to turn the locking ring 20 so that the locking ring 20 is located in the position 2 and to hook it by moving the locking ring 20 because the metal piece 14 and the locking ring 20 are hidden by the tires and are not visible.
This is a very difficult task especially for a person or a woman who has little experience in wearing chains. Further, the tire chains are often mounted on a cold road, etc., and since it is a hard work such as clothes being soiled with mud, there is a demand for a fastener or a tire chain that can be easily mounted in a short time.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a tire chain stopper and a tire chain which can be easily attached and detached. It is in.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, in the metal fitting for a tire chain according to the present invention, a first metal piece having a connecting portion on one end side to which one end side of the chain is connected;
And a second metal piece rotatably attached to the other end side of the first metal piece in the middle of the chain, and a chain is provided on the side wall of the first metal piece. An engaging recess is formed that abuts against the chain ring on the other end side from the inside so that the chain ring can be locked in the pulling direction, and one end side of the second metal piece is in a rotational position and the first metal piece is Is formed on the first arm portion that can completely or partially close the locking recess from the outside, and the other end side of the locking recess side when the first arm portion closes the locking recess. It is characterized in that it is formed on a second arm portion that can come into contact with the end portion of the chain ring from the inside.

The first metal piece and the second metal piece are approximately L
It is formed of a metal piece in the shape of a letter, the inner side wall of the L-shape of the first metal piece is formed in the locking recess, and the second metal piece is formed in the middle of one end of the L-shape of the first metal piece. It is preferable that the second metal piece is rotatably and axially mounted on both ends of the second metal piece to form the first arm portion and the second arm portion, respectively. It is preferable to provide a hook portion on the second arm portion side of the first arm portion that can temporarily fix the chain ring. If the first metal piece or the second metal piece is provided with a stopper that restricts a rotation angle when the second metal piece rotates in a direction in which the first arm portion opens the locking recess. Good. The length or thickness of the second arm portion is such that the second arm portion does not come out of the chain ring when the first arm portion is inserted into the chain ring and the second metal piece is rotated. It is preferable to set it. Further, the tire chain according to the present invention is characterized in that the above metal fittings of the tire chain are connected to one end side of the chain at a connecting portion.

[0007]

The function of the second metal piece is such that the first arm portion is inserted into the chain ring at the other end of the chain, and the second metal piece is rotated in the direction of the first metal piece so that the chain ring becomes the locking recess. Since the second arm portion of the second metal piece enters the chain ring at the same time as entering the chain, the chains can be easily connected and the chain can be prevented from coming off during traveling.
You can easily remove the chain.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a stopper 30 of a tire chain. In the figure, reference numeral 32 is a first metal piece formed by pressing a metal plate so that its front shape is substantially L-shaped. One arm of the first metal piece 32 is a first arm portion 33, and the other arm is a second arm portion 35. First
An example of a connecting portion for connecting the chain ring 34 on one end side of the tire chain to one end side of the metal piece 32 (first arm portion 33) directly or via a connecting fitting or the like (not shown). A through hole 36 is formed. A locking recess 37 is formed in the side wall between the one end and the other end of the first metal piece 32. In this embodiment, the locking recess 37 uses the L-shaped inner part of the metal piece 32 having a substantially L-shape as it is. The L-shaped angle of the first metal piece 32 is preferably 90 degrees or an acute angle within 90 degrees.

The other end side of the first metal piece 32 (the second arm 3
In 5), a second metal piece 38, which is also formed by pressing a metal plate into a substantially L-shape, is overlapped at a midway portion (L-shaped bent portion in the embodiment) and is rotatable by a shaft 40. Is pivoted on. One side of the second metal piece 38 is formed on the first arm portion 42, and the other side is formed on the second arm portion 43. Further, the tip of the first arm portion 42 is directed inward of the L-shape (toward the second arm portion 43 side).
A hook portion 44 is formed. This hook part 44 is
As will be described later, the chain ring 46 on the other end side of the tire chain to be stopped can be hooked and temporarily fixed.

A stopper piece 48 is provided integrally with the side edge portion of the first arm portion 42 so as to slightly project forward in the plane of FIG. As shown in FIG. 1, the stopper piece 48 has a direction (arrow X) in which the second metal piece 38 is separated from the first metal piece 32.
It becomes a stopper that regulates the rotation angle when it rotates in the direction). That is, one end of the stopper piece 48 is moved to the first position at the turning position.
The side wall surface of the metal piece 32 is abutted to regulate the rotation angle of the second metal piece 38. The rotation angle is not particularly limited, but the second metal piece is rotated so as to be sufficiently separated from the first metal piece 32, and the first arm portion 42 and the second arm portion 4 are rotated.
The recess made with 3 opens outwards and the chainring 46
It suffices that the hook portion 44 can be easily hooked.

Further, as the stopper piece 48 is rotated by the second metal piece 38 in the arrow Y direction, as shown in FIG.
When the locking recess 37 is closed from the outside, the stopper piece 48
By contacting the other end of the second metal piece 38 with the side wall surface of the first metal piece 32 on the one end side, the rotation angle of the second metal piece 38 in the arrow Y direction is also regulated. As a result, when the chain ring 46 is locked, as will be described later, the second metal piece 38 during traveling is
The play of can be prevented.

Although the stopper piece 48 is provided on the side of the second metal piece 38, it may be provided on the side of the first metal piece 32 as a protruding piece. Alternatively, the stopper piece 48 does not necessarily have to be provided. However, at least the stopper member that restricts the rotation of the second metal piece 38 in the arrow X direction as shown in FIG. 1 is used when the chain ring 46 is applied to the second metal piece 38 when the chain is attached. It is preferable to provide it because it is convenient. The other end side of the first metal piece 32 (the second arm portion 35
Side), the first arm portion 42 (including the stopper piece 48) of the second metal piece 38, the second arm portion 43, and the shaft 40 are formed to have a thickness that allows the shaft 40 to enter the chain ring 46. .

Numeral 49 is a stopper piece standing on the side edge of the first arm portion 33 of the first metal piece 32 in a direction perpendicular to the plane of the drawing, and the chain ring 46 moves in the direction of the first arm portion 33. Regulate not to move. The stopper piece 49 does not always have to be provided. The stopper 30 of the tire chain is formed as described above. Further, when the tire chain is configured, the fastener 30 may be connected to the chain ring 34 on one end side of the chain. Needless to say, conventionally known various bodies can be used for the body of the tire chain. Illustration of the tire chain body is omitted.

Next, the operation will be described. First, hang the tire chain around the tire by an appropriate method. Next, both ends of the chain are connected by the stoppers 30, but first, as shown in FIG. 1, the second metal piece 38 of the stopper 30 inside the tire is opened in a direction away from the first metal piece 32. At this time, the end of the stopper piece 48 abuts the side wall of the first metal piece 32 so that the second metal piece 38 is
Is kept open at a predetermined angle.

In this state, the chain ring 46 on the other end of the chain is hooked on the hook portion 44 and temporarily fixed (one-dot chain line in FIG. 1). Since the second metal piece 38 is open outward,
The chain ring 46 can be easily hooked on the hook portion 44. Then, grasp the chain ring 46 by hand and pull it, and as shown by the solid line in FIG.
6 presses the second arm 43 of the second metal piece 38 to
The metal piece 38 of is rotated in the arrow Y direction. Then, as shown in FIG. 2, the second arm portion 43 rotates, and the chain ring 46
At the same time as it goes around, the chain ring 46 is
Go into 7 Also, the first arm 4 of the second metal piece 38
2 stops the locking recess 37 from the outside so that the end of the stopper piece 48 abuts the side wall of the first metal piece 32. Since the chain ring 46 moves from the position hooked on the hook portion 44 to the position where it is locked to the wall surface of the locking recess 37, the chain as a whole is tightened by the length of the first arm portion 42. Is suitable.

After connecting the chains on the inside of the tire as described above, the chains on the front side of the tire are connected in the same manner, and a known rubber ring (not shown) is attached to the chain on the front side of the tire.
The tire chain can be attached by straddling such fasteners. To remove the tire chain, you can easily remove it by reversing the above procedure. In some cases, after removing the fasteners such as the rubber ring and loosening,
The second metal piece 38 naturally rotates in the direction away from the first metal piece 32 even by swinging the chain portion near 0 in the front, rear, left, and right directions.
6 easily comes off.

As described above, according to the present embodiment, the chain ring 46 is pulled and the second arm piece 43 of the second metal piece 38 is pressed to rotate the second metal piece 38. Only by this, the chain ring 46 wraps around the inside of the locking recess 37, and the chain ring 46 can be locked easily. In this case, by setting the angle of the L-shape of the first metal piece 32 to an acute angle, the chain ring 46 can be locked by itself, but as clearly shown in FIG.
The arm part 43 of the wraps around the inside of the chain ring 46. Therefore, even if the second metal piece 38 tries to rotate in the direction of the arrow X in FIG. 2 due to vibration during traveling, the second arm portion 43 comes into contact with the chain ring 46 from the inside and the second metal piece 38 The rotation return to the state of FIG. 1 is prevented. As a result, the chain ring 46 is reliably maintained in the connected state.

The shape of the locking recess 37 is a chain ring 46.
However, various shapes that can be locked in the pulling direction can be adopted. In addition, as shown in FIGS. 1 and 2, the first metal piece 3
When an L-shaped one is used for 2, the angle of this L-shaped is preferably an acute angle as described above, but more preferably, the first arm portion 33 and the second arm portion 35. The second arm portion 35 and the first arm portion 4 in FIG. 2 (the second metal piece 38 is rotated in the direction of the first metal piece 32) have a rising angle.
2 (the second metal piece 38) is set to be smaller than the angle formed by the chain, when the chain ring 46 is subjected to a tensile force in view of the positional relationship with the through hole 36 that is the connecting portion. Since the ring 46 is stably positioned on the locking recess 37 side, the chain ring 46 is locked more reliably.

When the chain is too long, for example, the fourth chain ring 46 from the chain end is locked. In this case, the first chain ring 46 and the fourth chain ring 46 from the chain end are engaged. At the same time, the second arm 42 is inserted into the
If the first chainring 46 is also locked by rotating in the direction of the metal piece 32 as described above, there is no play in the excess portion, and it is possible to prevent the excess portion from hitting the vehicle body and generating abnormal noise. it can.

In the state of FIG. 1, the second metal piece 3
In order to rotate 8 in the Y direction, the tip of the second arm 43 may be grasped by hand to rotate the second arm 43 in the Y direction. It is also possible to draw in the chain ring 46 side by utilizing.
The length of the first arm portion 42 of the second metal piece 38 is preferably a length that completely closes the locking recess 37 from the outside as shown in FIG. 2, but it is partially closed, that is, the first arm portion 42. The tip of the arm 42 does not have to reach the first arm 33 of the first metal piece 32. Even in this case, the second metal piece 38
Since the arm part 43 of the second metal piece wraps around the inside of the chain ring 46, the rotation return of the second metal piece 38 in the arrow X direction is prevented, and the chain ring 46 does not come off.

Further, the length of the second arm portion 43 of the second metal piece 38 is such that when the chain arm 46 presses the second arm portion 43 in FIG. 1, the chain ring 46 in FIG. Even if it comes to the position like
The arm portion 43 of the second metal piece 3 has completely entered and the chain ring 46 has passed over the second arm portion 43.
It is preferable to set the length of the second arm portion 43 so that only the chain ring 46 does not wrap around in the direction of the locking recess 37 without rotating 8.

Alternatively, the vicinity of the tip of the second arm portion 43 of the second metal piece 38 is formed thick so that it cannot pass through the chain ring 46, or it cannot pass through by providing a projection or the like. You can also do so. In this case, in FIG. 2, it is necessary to make the portion of the tip end portion (indicated by diagonal lines) of the second arm 43 other than the portion around the chain ring 46 thick. In this embodiment, the first metal piece 32
From the other end side, the first arm portion 42 of the second metal piece 38, and at least the shaft 40 of the second arm portion 3 to the locking recess 37.
It is necessary that the chain ring 46 be formed so as to be able to enter. The stopper piece 49 is provided in order to improve the operability by preventing the chain ring 46 from further entering in the direction of the first arm portion 33 of the first metal piece 32 in the state of FIG. However, this stopper piece 49 does not necessarily have to be provided. Further, the hook portion 44 is suitable for temporarily fixing the chain ring 46, but this is not necessarily required. When manufacturing the stopper 30, the first metal piece 32 and the second metal piece 38
Can be easily formed by pressing, and both the metal pieces can be easily connected by caulking the tip of the shaft 40 at the time of fixing the shaft, so that it can be formed at low cost.

Although the present invention has been variously described with reference to the preferred embodiment, the present invention is not limited to this embodiment, and the first metal piece and the second metal piece have the above L-shape. It goes without saying that many modifications can be made without departing from the spirit of the invention such as not limited to the shape.

[0024]

EFFECTS OF THE INVENTION According to the fastener for a tire chain or the tire chain according to the present invention, the chain ring can be locked in the locking recess by simply rotating the second metal piece, and can be easily attached and detached. In particular, since the second arm of the second metal piece wraps around the chain ring, the rotation of the second metal piece can be prevented, and the chain does not come off during traveling. By forming the first metal piece and the second metal piece in an L-shape, the second metal piece can be easily rotated and the chain ring can be easily wrapped around the locking recess. Second
By providing the hook portion on the first arm portion of the metal piece, the chain ring can be temporarily fixed to the hook portion,
You can easily connect the chainrings. By providing the stopper that restricts the second metal piece to stop at the outwardly open position, the chain ring connecting operation becomes easier. By setting the length or thickness of the second arm of the second metal piece so that the second arm does not come out of the chain ring, the rotation operation of the second metal piece by the chain ring becomes easy. The chain rings can be connected more easily.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a connection start state of a chain ring.

FIG. 2 is an explanatory view of a connected state of chain rings.

FIG. 3 is a side view of a stopper.

FIG. 4 is an explanatory diagram showing a conventional example.

FIG. 5 is an explanatory view of a locking ring.

[Explanation of symbols]

 30 Stopper 32 First metal piece 34 Chain ring 36 Through hole 38 Second metal piece 40 Shaft 42 First arm portion 43 Second arm portion 44 Hook portion 46 Chain ring 48 Stopper piece

Claims (6)

[Claims] 1. A first metal piece having a connecting portion to which one end side of a chain is connected to one end side, and a first metal piece, which is overlapped with the first metal piece, and is connected to the other end side of the first metal piece at an intermediate portion. A second metal piece pivotally attached to the side wall of the first metal piece, and the chain ring on the other end side of the chain abuts from the inside to lock the chain ring in the pulling direction. A lockable recess that is capable of being formed, and one end side of the second metal piece is capable of completely or partially closing the lock recess of the first metal piece from the outside at the rotation position. The other end side is formed into a second arm portion that can abut from the inside to the end portion of the chain ring on the locking recess side when the first arm portion closes the locking recess. A metal fitting for a tire chain. 2. The first metal piece and the second metal piece are formed into a substantially L-shaped metal piece, and the inside of the L-shape of the first metal piece is formed into the locking recess. The second metal piece is rotatably attached to one end side of the L-shape of the first metal piece in the middle part,
2. A metal fitting for a tire chain according to claim 1, wherein both ends of the second metal piece are formed on the first arm portion and the second arm portion, respectively. 3. The tire chain according to claim 1, wherein a hook portion that can temporarily fix the chain ring is formed on the second arm portion side of the first arm portion. Fasteners. 4. The rotation angle of the second metal piece when the second metal piece is rotated in the direction in which the first arm portion opens the locking recess is regulated by the first metal piece or the second metal piece. A stopper for a tire chain according to claim 1, 2 or 3, wherein a stopper is provided. 5. The second arm portion of the second metal piece,
When the first arm portion is inserted into the chain ring and the second metal piece is rotated, the length or thickness is set so that the second arm portion does not come out of the chain ring. The fastener for a tire chain according to claim 1, 2, 3, or 4. 6. A tire chain in which the fastener of the tire chain according to claim 1, claim 2, claim 3, claim 4 or claim 5 is connected to one end side of the chain at a connecting portion.