Tire chain mounting tool

Abstract

The device should be compact enough to be carried in a vehicle, and should be easy, safe, and secure to attach to the tire according to the tire size. [Solution] When the tire chain 3 is not attached to the tire 2, the tire side pressing portion 10, the tire circumferential pressing portion 11, and the wheel pressing portion 12 of the tire chain mounting device 1 are separated. When the tire chain is attached to the tire, the tire side pressing portion 10, the tire circumferential pressing portion 11, and the wheel pressing portion 12 are pressed against the tire 2 and fixed in place.

Description

Technical Field

[0001] The present invention relates to a tire chain mounting tool used for mounting a tire chain on a tire when the road surface is snow-covered or frozen.

Background Art

[0002] In the case of large vehicles such as snowplows, since the tires are also very large together with the vehicle body, the tire chains mounted to prevent the tires from slipping are also made of large-sized metal and are very heavy. Therefore, as in Patent Document 1 for example, a tire chain mounting tool is mounted on the tire, and the tire chain is placed on the tire with the end of the tire chain connected to the tire chain mounting tool. Then, the tire chain mounting tool is removed from the tire and the vehicle is driven to wind and attach the tire chain to the tire.

[0003] However, the tire chain mounting tool of Patent Document 1 is not configured to be compact so as to be portable on the vehicle and is placed in a predetermined work place. Therefore, when the tire of the vehicle with the tire chain mounted gets a puncture during driving, the tire chain can be removed at the puncture site and replaced with a new tire carried by another vehicle. However, since the tire chain mounting tool is not carried on the vehicle, there is a problem that it is necessary to return to the predetermined work place and attach the tire chain.

[0004] Furthermore, the tire chain mounting tool of Patent Document 1 is not configured to be able to be attached to the tire according to the tire size, and there is a problem that it cannot be attached to the tire depending on the tire size.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

[0006] Therefore, the problem that the present invention aims to solve is to provide a tire chain mounting device that can be made compact enough to be carried in a vehicle, and that can be easily, safely, and reliably attached to a tire according to the tire size. [Means for solving the problem]

[0007] To solve the above problems, the tire chain mounting device according to the present invention is A tire chain mounting device used to attach tire chains to the tires of a vehicle, The tire chain mounting device comprises a tire side pressing portion positioned on the tire side surface, a tire circumferential pressing portion positioned on the tire circumferential surface, and a wheel pressing portion positioned on the tire wheel. The tire side pressing portion comprises a pair of tire side body portions, a pair of insertion portions provided at one end and the other end of the tire side body portion, and a chain locking portion provided on the tire side body portion. The tire circumferential surface pressing portion comprises a tire circumferential surface side main body portion, bolt portions provided on both sides of the tire circumferential surface side main body portion, and nut portions that are attached to and detached from the bolt portions. The wheel pressing portion comprises a pair of wheel-side main bodies, a bolt portion provided on the wheel-side main body, and a nut portion that is attached to and detached from the bolt portion. The tire chain mounting device also includes, When tire chains are not attached to the tires, the tire sidewall pressing portion, the tire circumferential pressing portion, and the wheel pressing portion are separated. When attaching tire chains to a tire, the tire side body is positioned on the tire side, the tire circumference side body is positioned on the tire circumference, and the wheel side body is positioned on the wheel. The bolts of the tire circumference pressing part and the bolts of the wheel pressing part are inserted into the respective insertion points of the tire side body and tightened with the respective nuts, thereby pressing the tire side body against the tire side, the tire circumference side body against the tire circumference, and the wheel side body against the wheel, and securing them in place. [Effects of the Invention]

[0008] The tire chain mounting device according to the present invention can be made compact enough to be carried in a vehicle, and can be easily, safely, and securely attached to the tire according to the tire size. [Brief explanation of the drawing]

[0009] [Figure 1] A front view showing the tire chain mounting device in a disassembled state. [Figure 2] A side view showing a disassembled tire chain mounting device. [Figure 3] A partial cross-sectional front view showing the tire chain mounting device attached to the tire. [Figure 4] A side view showing the tire chain mounting device attached to the tire. [Modes for carrying out the invention]

[0010] An embodiment of the tire chain mounting device according to the present invention will be described below with reference to the drawings. The X, Y, and Z directions are mutually orthogonal directions.

[0011] <Configuration of tire chain mounting device 1> The configuration of the tire chain mounting device 1 will be described below. As shown in Figures 1 and 2, the tire chain mounting device 1 comprises a tire side pressing portion 10, a tire circumferential surface pressing portion 11, and a wheel pressing portion 12.

[0012] <Configuration of the tire sidewall pressing portion 10> The tire side pressing portion 10 comprises a pair of tire side body portions 101. Each tire side body portion 101 is made of a metal plate having a predetermined length in the longitudinal direction (Y direction) and the width direction (Z direction). The tire side body portion 101 is bent at a predetermined angle at a predetermined position in the longitudinal direction (Y direction) and is shaped to conform to the tire side 20b of the tire 2 (Figure 3). Furthermore, the tire side body portion 101 is fitted with a cushion portion 103 made of a rubber plate, and is configured so that the tire 2 is not damaged by the cushion portion 103 when the tire side body portion 101 is pressed against the tire side 20b.

[0013] The tire side body portion 101 has one end 101a and the other end 101c, and is bent so that when the tire side body portion 101 is positioned vertically (Y direction), the other end 101c is in the horizontal direction (X direction). The tire side body portion 101 is further provided with an insertion portion 101b inserted through the one end 101a in the thickness direction (X direction) and an insertion portion 101d inserted through the other end 101c in the thickness direction (Y direction). The insertion portion 101b is configured so that the bolt portion 111 of the tire circumferential surface pressing portion 11 is inserted through it, and the insertion portion 101d is configured so that the bolt portion 121 of the wheel pressing portion 12 is inserted through it.

[0014] The tire side body portion 101 is equipped with a chain locking portion 102, which is made of a metal bar that extends horizontally (X direction) when the tire side body portion 101 is positioned vertically (Y direction). The chain locking portion 102 is designed to catch the rings of the side chains 30 of the tire chain 3 (Figure 3).

[0015] <Configuration of the tire circumferential surface pressing portion 11> The tire circumferential surface pressing portion 11 includes a tire circumferential surface side main body portion 110. The tire circumferential surface side main body portion 110 is composed of a metal bar having a predetermined length in the length direction (X direction). Further, the tire circumferential surface side main body portion 110 includes a pair of bolt portions 111 having a predetermined length in the length direction (X direction) on both sides. As described above, the bolt portion 111 is configured to be insertable into the insertion portion 101b of the tire side surface side main body portion 101 of the tire side surface pressing portion 10. Furthermore, the tire circumferential surface pressing portion 11 includes a pair of nut portions 112. The nut portion 112 is configured to be detachable by rotating with respect to the bolt portion 111.

[0016] <Configuration of the wheel pressing portion 12> The wheel pressing portion 12 includes a pair of wheel side main body portions 120, a pair of bolt portions 121, and a pair of nut portions 122. The wheel side main body portion 120 is composed of a metal plate, and a cushion portion 123 composed of a rubber plate is attached thereto. The bolt portion 121 is configured to be insertable into the insertion portion 101d of the tire side surface side main body portion 101 of the tire side surface pressing portion 10 as described above. Also, the wheel side main body portion 120 and the nut portion 122 are configured to be detachable by rotating with respect to the bolt portion 121.

[0017] <Mounting method of the tire chain mounting tool 1> The mounting method of the tire chain mounting tool 1 will be described.

[0018] As described above, the tire chain mounting device 1 is equipped with a tire side pressing part 10, a tire circumferential pressing part 11, and a wheel pressing part 12, and each pressing part 10, 11, and 12 is configured to be separable and connectable. Therefore, when the tire chain 3 is not wrapped around the tire 2, the tire chain mounting device 1 can be made compact and carried in the vehicle by separating each pressing part 10, 11, and 12. When wrapping the tire chain 3 around the tire 2, the tire chain mounting device 1 is attached to the tire 2. Therefore, if the tire 2 of a vehicle equipped with tire chains 3 gets a puncture while driving, the tire chain 3 can be removed at the scene of the puncture and replaced with a new tire 2, and because the tire chain mounting device 1 is carried in the vehicle, the tire chain 3 can be attached to the tire 2 at the scene of the puncture.

[0019] As shown in Figure 3, the tire 2 comprises a rubber tube portion 20 positioned around the tire 2 and a metal wheel portion 21 positioned at the center of the tire 2. The tube portion 20 is wrapped around the wheel portion 21 and has a tire circumferential surface portion 20a that constitutes the circumferential surface of the tire 2 and a tire side portion 20b that constitutes the side surface of the tire 2. The wheel portion 21 also has rim portions 21a on both sides in the X direction of Figure 3.

[0020] The tire side pressing portion 10 has a pair of tire side body portions 101 that are positioned opposite each other so as to contact the tire side portion 20b. The other ends 101c of the tire side body portions 101 are also positioned opposite each other. The tire circumferential pressing portion 11 has a tire circumferential body portion 110 that is positioned so as to contact the tire circumferential portion 20a, and a pair of bolt portions 111 are inserted through the insertion portions 101b of the tire side pressing portion 10's tire side body portions 101. Then, a pair of nuts 112 of the tire circumferential pressing portion 11 are tightened against the bolt portions 111, so that the pair of tire side body portions 101 of the tire side pressing portion 10 are pressed against the tire side portion 20b in the X direction in Figure 3 and fixed in place.

[0021] Furthermore, the wheel pressing portion 12 is positioned such that a pair of wheel-side main body portions 120 contact the rim portion 21a of the wheel portion 21. When the nut portion 122 of the wheel pressing portion 12 is tightened against the bolt portion 121, the wheel-side main body portion 120 of the wheel pressing portion 12 is pressed against the rim portion 21a of the wheel portion 21 in the Y direction in Figure 3. As a reaction to this, the tire circumferential side main body portion 110 of the tire circumferential pressing portion 11 is pressed against the tire circumferential surface 20a in the Y direction in Figure 3 from the opposite side of the wheel pressing portion 12, thereby fixing it in place.

[0022] In this way, by pressing the tire side pressing portion 10 against the tire side portion 20b of the tire 2, pressing the tire circumferential pressing portion 11 against the tire circumferential portion 20a of the tire 2, and further pressing the wheel pressing portion 12 against the rim portion 21a of the tire 2, the tire chain mounting device 1 can be firmly fixed to a predetermined position on the tire 2. In this way, since the tire chain mounting device 1 is configured to be fixed by pressing the tire side pressing portion 10, the tire circumferential pressing portion 11, and the wheel pressing portion 12 against the tire 2, the tire chain mounting device 1 can be reliably and firmly fixed to tires 2 of various sizes.

[0023] Then, the side chain portion 30 of the tire chain 3 is hooked onto the chain locking portion 102 of the tire chain mounting device 1, which protrudes radially from the tire 2 (X direction in Figure 3). As a result, the cross chain portion 31 of the tire chain 3 is positioned radially from the tire 2 (X direction in Figure 3).

[0024] <How to install tire chains 3> As shown in Figure 4, the tire chain mounting device 1 is fixed to the rear of the tire 2 at the rear of the vehicle in the direction of travel (arrow A in Figure 4), and the side chains 30 of the tire chain 3 are hooked onto the chain locking portion 102 of the tire chain mounting device 1. Then, by slowly driving the vehicle in the direction of travel (arrow A in Figure 4), the tire 2 rotates in the rotational direction (arrow B in Figure 4). As a result, the tire chain mounting device 1 rotates together with the tire 2, and the tire chain 3 is wrapped around the tire 2. Once the tire chain 3 is wrapped around the entire circumference of the tire 2, the tire chain mounting device 1 is removed from the tire 2, and both ends of the side chain portion 30 of the tire chain 3 are fixed, thereby attaching the tire chain 3 to the tire 2. This allows the tire chain mounting device 1 and the tire chain 3 to be attached to the tire 2 easily, reliably, and safely.

[0025] Although preferred embodiments of the present invention have been described above, the configuration of the present invention is not limited to these embodiments. For example, the tire circumferential surface pressing portion 11 may be made into a single unit and the bolt portion 111 may be made into a single unit that can be separated. Furthermore, the wheel-side main body portion 120 and the bolt portion 121 of the wheel pressing portion 12 may be integrated without being separated. [Explanation of Symbols]

[0026] 1. Tire chain mounting tool 10 Tire sidewall pressing area 101 Tire side body 101a One end of the main body on the side of the tire 101b Insertion section 101c Tire side body, other end 101d Insertion section 102 Chain locking part 11. Tire circumferential surface pressing area 110 Main body on the tire circumference side 111 Bolt section 112 Nut part 12 Wheel pressing section 120 Wheel-side main body 121 Bolt section 122 Nut section 2 tires 20 Tube section 20a Tire circumference 20b Tire sidewall 21 Wheel section 21a Rim section 3 Tire chains 30 Side chain section 31 Cross chain section

Claims

[Claim 1] A tire chain mounting device used to attach tire chains to the tires of a vehicle, The tire chain mounting device comprises a tire side pressing portion positioned on the tire side surface of the tire, a tire circumferential pressing portion positioned on the tire circumferential surface of the tire, and a wheel pressing portion positioned on the wheel portion of the tire. The tire side pressing portion comprises a pair of tire side body portions, a pair of insertion portions provided at one end and the other end of the tire side body portion, and a chain locking portion provided on the tire side body portion. The tire circumferential surface pressing portion comprises a tire circumferential surface side main body portion, bolt portions provided on both sides of the tire circumferential surface side main body portion, and nut portions that are attached to and detached from the bolt portions. The wheel pressing portion comprises a pair of wheel-side main bodies, a bolt portion provided on the wheel-side main body, and a nut portion that is attached to and detached from the bolt portion. The aforementioned tire chain mounting device further includes, When the tire chain is not attached to the tire, the tire side pressing portion, the tire circumferential pressing portion, and the wheel pressing portion are separated. When the tire chain is attached to the tire, the tire side body is positioned on the tire side, the tire circumferential body is positioned on the tire circumferential surface, and the wheel side body is positioned on the wheel. The bolts of the tire circumferential surface pressing part and the bolts of the wheel pressing part are inserted into the respective insertion parts of the tire side body and tightened with the respective nuts, thereby pressing the tire side body against the tire side, pressing the tire circumferential body against the tire circumferential surface, and pressing the wheel side body against the wheel to secure it in place. A tire chain mounting device characterized by the following features.

Images