JPH0635687Y2 - Tire chain locking device guide device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to one lock attached to an open end of an inner support when supporting the inner support of a tire chain inside the tire. The present invention relates to a locking tool guide device for a tire chain suitable for locking the other locking tool attached to the other end of the inner support on the open side.

(Prior Art) Conventionally, a pair of locking tools in which locking holes and locking pieces are provided at both open side ends of a substantially C-shaped inner support of a tire chain so that they can be locked to each other. And a locking hole of the other locking tool attached to the other open end of the inner support, to the locking piece of one locking tool attached to the one open end of the inner support. Was engaged and disengaged (for example, Japanese Utility Model Laid-Open No. 61-203806).

Further, the base end of the hook is pivotally supported at the other end of the guide tool having the guide groove at one end so that the tip of the hook can be inserted into and removed from the guide groove. A guide that guides the fastener by forming a taper on the opening of the guide tool when locking the annular connector at the tip (for example, Japanese Utility Model Laid-Open No. 54-93904) or when guiding the fastener. There has been provided such a device (for example, JP-A-59-190012).

(Problems to be solved by the invention) However, in the former case, in order to support the tire chain inside the tire through the inner supporting body, the tire chain cannot be seen from the outside of the tire and must be groped inside. The operation of releasably locking the locking hole of the other locking member of the inner support member to the locking piece of the one locking member of the support member is troublesome and lacks in certainty.

Also, in the latter Japanese Utility Model Laid-Open No. 54-93904, similarly, when the annular connecting body is hooked at the tip of the hook of the guide tool, the guide in the direction intersecting with the hooking direction of the connecting body is provided. Therefore, the operation of hooking the connected body was troublesome and lacked in certainty. Also, in the Japanese Patent Laid-Open No. 59-190012, similarly, since there is no guide in a direction intersecting with the locking direction of the locking tool, the locking operation of the locking tool is troublesome and lacks in certainty. .

Therefore, the present invention has been devised to solve the above-mentioned problems, and when the inner support of the tire chain is supported inside the tire, one locking member of the inner support is locked. (EN) A tire chain capable of extremely easily and surely locking the locking hole of the other locking tool of the inner support member to one piece.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has side pieces slightly protruding from both side edges of a substrate, and fitting grooves are formed on inner surfaces of one end of each side piece. A stopper is provided at the inner end of each of the fitting grooves, and a step portion formed parallel to the substrate and gradually widened from one end direction to the other end direction at the tip edges of both side pieces. A guide tool is formed by projecting guide pieces each of which has a guide portion protruding from the tip edge of the step portion in the same protruding direction as the side piece, and a fitting groove of the guide tool is formed.
The stoppers at the inner ends of the fitting grooves are abutted on both sides of the locking pieces of the fittings, respectively, on one of the fittings attached to one open end of the substantially C-shaped inner support of the tire chain. It was fitted like this.

(Operation) When the inner support of the tire chain is supported on the inner side of the tire by the technical means as described above, the locking hole side of the other locking tool is easily inserted from the other end direction of the guide tool. In addition, it is possible to smoothly guide along the step portions and the guide portions of both guide pieces of the guide tool.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In the drawings, reference numeral 1 is a guide tool which is the main feature of the present invention, and the guide tool 1 is, as shown in FIGS. 1 to 4,
A rectangular shape having the same width (up and down short-side direction in the figure) as the lateral width of the pair of locking members 12 and 13 attached to both ends of the open side of the substantially C-shaped inner support 11 which is partially opened. Side pieces 3 having a height slightly higher than the plate thickness of the locking members 12 and 13 are provided on both side edges of the base plate 2 of the base plate 2 at right angles in the same direction. Fitting grooves 4 that fit into one of the locks 12 of the inner support 11 are provided respectively, and the inner ends of each of the fit grooves 4 are fitted to one of the locks 12 of the inner support 11. Each stopper 5 for setting the wearing position is provided. Then, guide pieces 6 for engaging one locking tool 12 of the inner support 11 with the other locking tool 13 of the inner support 11 are provided at the tip edges of the both side pieces 3 so as to project therefrom. Is formed in.

The guide piece 6 is parallel to the substrate 2 and gradually widens from one end direction to the other end direction, and a step portion 7 is formed at a right angle from the tip edge of the step portion 7 in the same protruding direction as the side piece 3. It is formed to have an L-shaped cross section from the protruding guide portion 8.

On the other hand, each of the locking tools 12 and 13 of the inner support body 11 has, at the base end portion, two pieces for locking the connector 17 of the cross chain 15 cross single portion 16 in the vicinity of the most open side end portions of the inner support body 11. Caulking pieces with hooks 18 cut out at appropriate intervals along the longitudinal direction
14 is provided, a substantially square locking hole 19 is formed in the central portion, and a hook-shaped locking piece 20 gradually narrowed toward the distal end is provided at the distal end so as to engage with each other. Locking hole 19 in stop piece 20,
The inner support 11 is formed so that the locking piece 20 can be engaged with and disengaged from the opposite locking hole 19 and the crimping piece 14 is provided with crushing portions 21 at both ends on the open side for preventing the pulling out. It is attached to both open side ends so as to be caulked in a substantially tubular shape.

Then, the fitting groove 4 of the guide tool 1 formed as described above
Is attached to one locking tool 12 attached to one open end of the substantially C-shaped inner support 11 of the tire chain, and the stopper 5 at the inner end of each fitting groove 4 is engaged with the locking tool 12. The stopper 20 is detachably fitted so as to abut on both sides of the stopper 20.
The engaging hole 20 of the other engaging tool 13 at the other end on the open side of the inner support 11 is engaged with the engaging piece 20 of FIG.

In this case, it is described that the fitting groove 4 of the guide tool 1 is detachably fitted to the one locking tool 12 at one end of the inner side support body 11 on the open side, but the invention is not limited to this. The fitting groove 4 of the tool 1 may be integrally fitted to one locking tool 12 at one end of the open end of the inner support 11 so as not to slip out.

According to one embodiment of the present invention, the two caulking pieces 18 of the respective locking tools 12, 13 are provided with two engaging portions 18 so as to be cut out at appropriate intervals along the longitudinal direction. The cross chain 15 near the open ends of the inner support 11 is attached to the hooking portion 18.
When the connector 17 of each cross single part 16 is locked, the connector 17 is prevented from rotating, and each cross single part 16 of the cross chain 15 is locked near the most open side ends of the inner support 11. Is twisted, or each cross single part 16 of the cross chain 15 slips from each locking tool 12, 13 at the open side ends of the inner support 11 to the opposite side when the locking tool 12, 13 is disengaged and twists. Furthermore, since each cross single part 16 of the cross chain 15 can be prevented from approaching the protection tube 23 side, it is possible to reliably prevent the cross chain 15 from being cut during traveling, and the tire
It is very easy to attach it to 22.

(Effects of the Invention) In the present invention, as described above, the side pieces 3 are slightly provided on both side edges of the substrate 2, and the fitting grooves 4 are provided on the inner surfaces of one end side of the both side pieces 3, respectively. A stopper 5 is provided at each inner end of the groove 4, and a step portion 7 formed parallel to the substrate 2 and gradually widened from one end direction to the other end end at the tip edges of both side pieces 3, and this step. A guide tool 1 is formed such that a guide piece 6 is formed so as to project from the tip edge of the portion 7 and a guide portion 8 that projects in the same protruding direction as the side piece 3, and a fitting groove for the guide tool 1 is formed. 4 is a substantially C-shaped inner support of the tire chain
The stopper 5 at the inner end of each of the fitting grooves 4 is fitted to one locking tool 12 attached to one end of the locking tool 12 on the open side so that both sides of the locking piece 20 of the locking tool 12 are brought into contact with each other. Therefore, as shown in FIG. 4, when the inner support 11 of the tire chain is supported inside the tire 22, the locking hole 19 side of the other locking tool 13 is inserted from the other end direction of the guide tool 1. Since it is easy and can be smoothly guided along the step portions 7 and the guide portions 8 of both guide pieces 6 of the guide tool 1, the locking piece 20 of the one locking tool 12 of the inner support 11 is provided.
The locking hole 19 of the other locking tool 13 of the inner support 11 can be locked extremely easily and reliably.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 4 is a cross-sectional view showing a state in which the fitting groove of the guide tool is fitted in FIG. 4, and FIG. 4 shows that the locking hole of one locking tool of the inner support is locked to the locking hole of the other locking tool of the inner support. It is a front view of the state which does. DESCRIPTION OF SYMBOLS 1 ... Guide tool, 2 ... Board, 3 ... Side piece, 4 ... Fitting groove, 5 ... Stopper, 6 ... Guide piece, 7 ... Step part, 8 ... Guide part, 11 ... Inner support body, 12 ... Locking tool , 13 ... Locking tool, 14 ... Caulking piece, 15 ... Cross chain, 16 ... Cross single part, 17 ... Connector, 18 ... Locking part, 19 ... Locking hole, 20 ... Locking piece, 21 ... Crushing part, 22 ... Tire, 23 ... Protection tube.

Claims (1)

[Scope of utility model registration request] 1. Side pieces slightly projecting from both side edges of a board, fitting grooves are provided on inner surfaces of one end of each side piece, and stoppers are provided on inner ends of the fitting grooves, respectively. At the tip edges of both side pieces, a step portion is formed which is parallel to the substrate and gradually widens from one end direction to the other end direction, and a guide protruding from the tip edge of the step portion in the same protruding direction as the side piece. A guide member formed by projecting guide pieces each of which has a section and a fitting portion, and a fitting groove of the guide tool is attached to one end of an open side of the substantially C-shaped inner support of the tire chain. The locking tool guide device for a tire chain, wherein the stoppers at the inner ends of the fitting grooves are fitted to the locking tools so that they come into contact with both sides of the locking pieces of the locking tools.