Tire binding device and vehicle carrier equipped with tire binding device

Abstract

To provide: a tire binding device capable of suppressing the increase of weight without reducing the freedom of a position for binding a tire; and a vehicle carrier.SOLUTION: In a region of a floor panel where a tire is placed, a plurality of fixing holes arranged in a direction along a width direction of the tire and a direction along a direction perpendicular to the width direction are formed. A structure for attaching a binding belt to multiple positions along the width direction of the tire is provided in each of a pair of two binding jigs that is attached to each of two fixing holes arranged at an interval in the direction along the direction perpendicular to the width direction and binds the tire together with the binding belt. Each vicinity of the fixing holes on a rear surface of the floor panel is attached with a reinforcing member which is formed in a shape that exhibits force withstood by a portion of the floor panel where the fixing holes are formed with respect to the force acting on the floor panel during tire binding.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a tire binding device for binding a tire to be bound among vehicles to a floor board, and a vehicle carrier equipped with the tire binding device.

Background Art

[0002] In recent years, many passenger cars have abolished the towing hook arranged on the lower side of the chassis frame and provided a screw-in type towing hook on the bumper. Therefore, for example, when transporting by a vehicle carrier, it is impossible to use the towing hook for binding. In addition, there is also a vehicle carrier whose chassis frame is not provided with holes for binding. Therefore, as a tire binding device that can be applied to a wide variety of vehicles, for example, Patent Document 1 discloses a tire binding device that binds the tires of a vehicle loaded on a vehicle carrier to the floor board of the loading platform.

[0003] The tire binding device disclosed in Patent Document 1 has a plurality of slits formed in the floor board at intervals along the length direction of the vehicle to be loaded, and a round bar arranged on the back surface of the floor board and extending along the plurality of slits. In addition to this, it has a binding belt wound around the outer peripheral surface of the tire provided in the vehicle to be loaded, two hooks provided on the binding belt, and a tightening tool for tightening the binding belt. Note that the plurality of slits open along the left-right direction of the vehicle to be loaded.

[0004] In the case of the tire binding device disclosed in Patent Document 1, at a position where the tire to be bound is sandwiched from the front and the rear, two hooks are selectively passed through one of the plurality of slits, and the tip of the hook is engaged with the round bar. Then, by tightening the binding belt using the tightening tool, it is possible to tighten and fix the tire to the loading platform.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, since the tire binding device disclosed in Patent Document 1 has a configuration in which many slits are formed in the floor plate in order to be applicable to a wide variety of vehicles having different wheelbases and tire sizes, the strength of the floor plate is reduced. Therefore, it is necessary to increase the strength of the floor plate by adding a structure for reinforcing the floor plate. However, adding a structure for reinforcing the floor plate may cause a problem that the weight of the loading platform increases. In view of the above-described problems, an object of the present invention is to provide a tire binding device and a vehicle carrier including the tire binding device that can suppress an increase in weight without reducing the degree of freedom in the position where the tire is bound.

Means for Solving the Problems

[0007] A tire binding device according to one aspect of the present invention is a tire binding device for binding a tire to be bound to a floorboard using a fastener. In a region of the floorboard where the tire is disposed, a plurality of fixing holes are formed and arranged in a direction along the width direction of the tire and a direction orthogonal to the width direction. Each of a pair of binding jigs that are attached to each of two fixing holes spaced apart in a direction orthogonal to the width direction and bind the tire together with a binding belt is provided with a structure for attaching the binding belt at a plurality of positions along the width direction of the tire. In addition, a reinforcing member is attached near the fixing holes on the back surface of the floorboard, and the reinforcing member is formed in a shape that exhibits a force that the portion of the floorboard where the fixing holes are formed withstands against the force acting on the floorboard when the tire is bound. Further, the binding jig is provided with a structure for attaching the binding belt on the front side, and includes a jig main body portion whose back side faces the surface on which the tire of the floorboard is disposed with the binding jig attached to the fixing hole, and a jig hook portion whose back side faces the surface opposite to the surface facing the jig main body portion of the floorboard with the binding jig attached to the fixing hole. And, with the binding jig attached to the fixing hole, the floorboard and the reinforcing member are disposed between the jig main body portion and the jig hook portion. Also, a tire binding device according to an aspect of the present invention is a tire binding device for binding a tire to be bound to a floorboard using a tightening tool, and includes a plurality of fixing holes, a pair of binding jigs, and a binding belt. The plurality of fixing holes are formed in the floorboard, arranged in a region of the floorboard where the tire is disposed, and arranged in a direction along the width direction of the tire and a direction orthogonal to the width direction of the tire. The binding belt is attachable to the fixing holes, one end thereof is connected to one of a pair of binding jigs, and while a part between both ends is in contact with the outer peripheral surface of the tire, the other end is connected to the tightening tool via the other of the pair of binding jigs. Further, the binding belt includes a first hook attached to one end and a second hook attached to the binding belt so as to be movable along the length direction of the binding belt between both ends. And, a plurality of hook insertion holes into which the first hook and the second hook can be attached are formed in the binding jig. The plurality of hook insertion holes are arranged along the width direction of the tire in a state where the binding jig is attached to the fixing hole. In addition, near the fixing hole on the back surface of the floorboard, a reinforcing member is attached which is formed in a shape that exhibits the force that the portion of the floorboard where the fixing hole is formed withstands against the force acting on the floorboard when the tire is bound. Further, the binding jig includes a jig main body portion having hook insertion holes formed on the front side and having a back side facing the surface of the floorboard on which the tire is disposed in a state where the binding jig is attached to the fixing hole, and a jig hook portion facing a surface opposite to the surface facing the jig main body portion of the floorboard in a state where the binding jig is attached to the fixing hole. And, in a state where the binding jig is attached to the fixing hole, the floorboard and the reinforcing member are disposed between the jig main body portion and the jig hook portion. Also, a vehicle transporter according to an aspect of the present invention includes a tire binding device.

Effects of the Invention

[0008] According to the tire binding device and the vehicle transporter of the present invention, it is possible to suppress an increase in weight without reducing the degree of freedom in the position where the tire is bound.

Brief Description of the Drawings

[0009]

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Mode for Carrying Out the Invention

[0010] Hereinafter, an embodiment of a tire binding device according to the present invention and a vehicle transporter equipped with the tire binding device will be described with appropriate reference to the drawings. Note that the drawings are schematic. Therefore, it should be noted that the relationship between the thickness and the planar dimensions, the ratio, etc. may be different from the actual ones, and there may be portions where the dimensional relationships and ratios are different between the drawings. Further, the embodiments shown below exemplify devices and methods for embodying the technical idea of the present invention, and the technical idea of the present invention does not specify the material, shape, structure, arrangement, etc. of the constituent parts in the following embodiments.

[0011] <Embodiment> (Configuration) As shown in FIGS. 1 to 5, the vehicle transporter 1 includes a chassis frame 2, a loading platform 3, a rear fender 4, a torii frame 5, a waist plate 6, a loading platform lifting device 8, a front tire binding device 20, and a rear tire binding device 30. In the following description and drawings, the direction in which the vehicle transporter 1 moves forward (the direction in which it travels when the shift is selected to the D range or the like) may be described as "forward". Similarly, in the following description and drawings, the direction in which the vehicle transporter 1 moves backward (the direction in which it travels when the shift is selected to the R range) may be described as "backward". Further, in the following description and drawings, "left side" is the left side of the driver who drives the vehicle transporter 1, and "right side" is the right side of the driver who drives the vehicle transporter 1. Therefore, in the following description and drawings, "left side view" is the viewpoint of looking at the driver who drives the vehicle transporter 1 from the left side, and "right side view" is the viewpoint of looking at the driver who drives the vehicle transporter 1 from the right side. Also, in the following description, "left side view" and "right side view" may be collectively described as "side view".

[0012] The loading platform 3 is disposed on the chassis frame 2 and includes a floor plate 3f and a tightening ring 11. The floor plate 3f is a plate for binding the tires (front wheel tires Tf, rear wheel tires Tr) of the loading vehicle V, which is the vehicle loaded on the vehicle transporter 1. The clamping ring 11 is formed in a ring shape and is disposed between the rear part of the loading platform 3, specifically, the position where the rear wheel tire Tr is disposed when binding the rear wheel tire Tr of the floorboard 3f, and the rear fender 4.

[0013] In addition, a towing device (not shown) is attached to the loading platform 3. The towing device includes a winch around which a wire is wound and a hook connected to the tip of the wire. By operating the winch with the hook connected to the loading vehicle V, it is possible to tow the loading vehicle V onto the loading platform 3.

[0014] The rear fender 4 is disposed at the rear end of the loading platform 3. Further, the rear fender 4 is attached to the loading platform 3 so as to be rotatable forward and backward of the vehicle transporter 1 with the rear end of the loading platform 3 as the rotation center. By rotating the rear fender 4, it is possible to move the rear fender 4 to the vertical closed position or the open position (not shown) shown in FIG. 1. Note that the "open position" is a position where the rear fender 4 serves as a slope when the loading vehicle V enters the loading platform 3.

[0015] The torii frame 5 is formed in a gate shape when viewed from the rear, and both ends are attached to the front part of the loading platform 3, so that it is provided integrally with the loading platform 3 at the front part of the loading platform 3. The waist plate 6 is formed in a rectangular plate shape and is provided integrally with both ends of the torii frame 5 and the frame of the loading platform 3. Note that the waist plate 6 can be replaced by removing bolts.

[0016] In addition, two jig brackets 9 are attached to the rear-facing surface of the waist plate 6 using welding or the like. Furthermore, a mirror plate 7 is attached to the rear-facing surface of the waist plate 6. The two jig brackets 9 are respectively disposed at positions closer to the center of the loading platform 3 than the position where the tire of the loading vehicle V is disposed when viewed from the rear of the waist plate 6.

[0017] The jig bracket 9 can be attached with a front binding jig 60f provided in the front tire binding device 20 and a rear binding jig 60r provided in the rear tire binding device 30. The detailed configuration of the jig bracket 9 will be described later. The mirror plate 7 is formed using a mirror and can reflect the loaded vehicle V placed on the loading platform 3. Thereby, for example, a driver driving the loaded vehicle V can visually recognize the left end and the right end of the loaded vehicle V reflected on the mirror plate 7. For this reason, it becomes easy to move the loaded vehicle V to a desired position on the loading platform 3.

[0018] The loading platform lifting device 8 is disposed between the loading platform 3 and the chassis frame 2. The loading platform lifting device 8 includes a moving mechanism (not shown) for moving the loading platform 3. The moving mechanism can change the position of the loading platform 3 between a storage position and an access position. Further, the moving mechanism is configured to be able to change the position of the loading platform 3 between the storage position and the access position by sliding the loading platform 3. The storage position is a position where the loading platform 3 is stored on the chassis frame 2. The access position is a position where the loading platform 3 is lowered from the storage position to the rear of the vehicle transporter 1. Thereby, the vehicle transporter 1 can load the loaded vehicle V on the loading platform 3 with the position of the loading platform 3 as the access position and transport the loaded vehicle V with the position of the loading platform 3 as the storage position.

[0019] The front tire binding device 20 is a device for binding the front wheel tire Tf of the loaded vehicle V to be bound to the floor plate 3f using a tightening tool (front tightening tool 27). The front tire binding device 20 is a device for binding the front wheel tire Tf regardless of whether the loaded vehicle V has a towing hook. In addition, the front tire securing devices 20 are respectively arranged for the right front wheel tire Tf and the left front wheel tire Tf. The front tire securing device 20 arranged on the right side and the front tire securing device 20 arranged on the left side are arranged symmetrically with respect to the center line CL of the loading platform 3 on the floor plate 3f. Since the front tire securing device 20 has a symmetrical configuration, the following description will be made without distinguishing between the left and the right.

[0020] The rear tire securing device 30 is a device for securing the rear wheel tire Tr of the loading vehicle V to be secured to the floor plate 3f using a tightening tool (rear tightening tool 31). Note that the rear tire securing device 30 is a device for securing the rear wheel tire Tr regardless of whether the loading vehicle V has a towing hook or not. In addition, the rear tire securing devices 30 are respectively arranged for the right rear wheel tire Tr and the left rear wheel tire Tr. The rear tire securing device 30 arranged on the right side and the rear tire securing device 30 arranged on the left side are arranged symmetrically with respect to the center line CL of the loading platform 3 on the floor plate 3f. Since the rear tire securing device 30 has a symmetrical configuration, the following description will be made without distinguishing between the left and the right.

[0021] <Loading platform> Hereinafter, the detailed configuration of the loading platform 3 will be described.

[0022] As shown in FIG. 2, the floor plate 3f is formed in a rectangular shape. In FIG. 2, for the sake of explanation, the illustration of the chassis frame 2, the rear fender 4, the torii frame 5, the waist plate 6, the loading platform lifting device 8, and the loading vehicle V is omitted. The floor plate 3f can carry a loading vehicle V such as a passenger car. In addition, the floor plate 3f is reinforced by a plurality of cross frames 10 fixed to the back surface 3r of the floor plate 3f.

[0023] The plurality of cross frames 10 are arranged at intervals along the traveling direction of the vehicle transporter 1. Among the bed plates 3f, a towing device 21 is arranged on the right side of the front. After moving the loading platform 3 to the loading position, the towing device 21 can be used to tow the loading vehicle V on the loading platform 3.

[0024] In addition, as shown in FIG. 2, a front tightening tool 27 is attached to the loading platform 3. The front tightening tool 27 is a tightening means for clamping and fixing the front wheel tire Tf to the loading platform 3, and is arranged on the left and right sides in front of the center of the loading platform 3. The front tightening tool 27 includes a handle 27h, a ratchet mechanism 27t, a wire 27r, a plurality of pulleys 27s, and a hook 27f.

[0025] The ratchet mechanism 27t includes a drum (not shown). The drum operates in conjunction with an operation of an operator (such as a driver) rotating the handle 27h. The wire 27r is wound around the drum from the base end.

[0026] The plurality of pulleys 27s guide the middle portion (the portion between the tip and the base end) of the wire 27r by rotating. The hook 27f is attached to the tip of the wire 27r.

[0027] <Front tire fixing device> As shown in FIG. 3, the front tire fixing device 20 includes a tire stop block 23, a plurality of front fixing holes 70f, a pair of front fixing jigs 60f, and a front fixing belt 22.

[0028] (Tire stop block) The tire stop block 23 is fixed between the position where the front wheel tire Tf is arranged and the front tightening tool 27 on the bed plate 3f. Further, as shown in FIG. 3, the tire stop block 23 is formed in a trapezoid shape whose bottom side is longer than the upper side in a side view. The bottom side of the tire stop block 23 in the side view is in contact with the bed plate 3f. The tire stop block 23 is arranged at a position corresponding to the front and rear positions of the axle and the size (diameter) of the front wheel tire Tf on the bed plate 3f.

[0029] (Front fixing holes) A plurality of front fixing holes 70f are formed in the floor board 3f. Further, the front fixing holes 70f are square holes penetrating the floor board 3f. In the embodiment, as an example, the case where 35 front fixing holes 70f are formed for one front wheel tire Tf will be described. The 35 front fixing holes 70f form three groups. The three groups are arranged at intervals along the direction in which the vehicle carrier 1 travels.

[0030] Among the three groups, the front group is composed of 11 front fixing holes 70f and is formed by four rows of sets arranged along the direction in which the vehicle carrier 1 travels. One row of sets arranged at the forefront among the four rows of sets has 2 front fixing holes 70f. One of the 2 front fixing holes 70f is formed at a position where the vicinity of the center in the width direction of the front wheel tire Tf is arranged. The other of the 2 front fixing holes 70f is formed at a position closer to the center line CL than one of the 2 front fixing holes 70f. The three rows of sets different from the row of sets arranged at the forefront have 3 front fixing holes 70f. One of the 3 front fixing holes 70f is formed at a position where the vicinity of the center in the width direction of the front wheel tire Tf is arranged. The remaining two of the 3 front fixing holes 70f are formed at positions closer to the center line CL and farther from the center line CL than one of the 3 front fixing holes 70f, respectively.

[0031] Among the three groups, the rear group is composed of 12 front fixing holes 70f and is formed by four rows of sets arranged along the direction in which the vehicle carrier 1 travels. Each of the four rows of sets has 3 front fixing holes 70f. One of the 3 front fixing holes 70f is formed at a position where the vicinity of the center in the width direction of the front wheel tire Tf is arranged. The remaining two of the 3 front fixing holes 70f are formed at positions closer to the center line CL and farther from the center line CL than one of the 3 front fixing holes 70f, respectively. The group arranged between the front group and the rear group among the three groups has the same configuration as the rear group.

[0032] Therefore, the plurality of front fixing holes 70f are arranged in the region of the floor plate 3f where the front wheel tire Tf is arranged. Further, the plurality of front fixing holes 70f are arranged in a direction along the width direction of the front wheel tire Tf and in a direction orthogonal to the width direction of the front wheel tire Tf.

[0033] In the embodiment, a plurality of (35) front fixing holes 70f are formed in the floor plate 3f. For this reason, it is possible to select the front fixing holes 70f at positions suitable for binding the front wheel tire Tf from among the plurality of front fixing holes 70f. The selection of the front fixing holes 70f is performed in consideration of, for example, positions corresponding to the size (outer diameter, width, etc.) of the front wheel tire Tf and positions where contact between the front binding belt 22 and components (such as fenders) provided in the loading vehicle V can be avoided.

[0034] Among the back surfaces 3r of the floor plate 3f, a front reinforcing member 80f is attached between the portions where the front fixing holes 70f are formed. As shown in FIGS. 6 and 7, the front reinforcing member 80f includes a front first reinforcing bar 81f, a front reinforcing rib 82f, and a front second reinforcing bar 83f. Further, the front reinforcing member 80f is formed in a shape that exhibits the force that the portion of the floor plate 3f where the front fixing holes 70f are formed can withstand against the force acting on the floor plate 3f when the front wheel tire Tf is bound.

[0035] The front first reinforcing bar 81f is formed in a rod shape using, for example, an iron pipe. Further, the front first reinforcing bar 81f is arranged at a position closer to the center line CL than the front fixing hole 70f formed at the position farthest from the center line CL among the back surfaces 3r in a state where the length direction is parallel to the traveling direction of the vehicle carrier 1.

[0036] The front reinforcing rib 82f is formed, for example, in a U-shape with an upper opening when viewed from the front and the rear, using an iron plate material. Also, the front reinforcing rib 82f is disposed at a position closer to the center line CL than the front fixing hole 70f formed at a position near the center in the width direction of the front wheel tire Tf on the back surface 3r, with its length direction parallel to the traveling direction of the vehicle carrier 1.

[0037] The front second reinforcing bar 83f is formed in a bar shape, for example, using an iron pipe. Also, the front second reinforcing bar 83f is disposed at a position closer to the center line CL than the front fixing hole 70f formed at the position closest to the center line CL on the back surface 3r, with its length direction parallel to the traveling direction of the vehicle carrier 1.

[0038] (Front fixing jig) A pair of front fixing jigs 60f can be attached to the front fixing hole 70f and is disposed corresponding to one front wheel tire Tf. Therefore, the front tire fixing device 20 includes two pairs of front fixing jigs 60f. Also, as shown in FIGS. 8 and 9, the front fixing jig 60f includes a jig main body portion 61, two jig hook portions 62, a position holding portion 63, and a holding plate portion 64. That is, the front fixing jig 60f includes a plurality of jig hook portions 62. Note that FIG. 8(b) is a view taken along the arrow B in FIG. 8(a).

[0039] The jig main body portion 61 is formed in a rectangular cylindrical shape with a quadrilateral cross section. On the surface of the jig main body portion 61 (the upper surface in FIG. 8(a)), three hook insertion holes 65 are formed. That is, a plurality of hook insertion holes 65 are formed in the front fixing jig 60f. The back surface of the jig main body portion 61 (the lower surface in FIG. 8(a)) faces, for example, as shown in FIG. 7, the surface (front surface) on which the front wheel tire Tf of the floor plate 3f is disposed, with the front fixing jig 60f attached to the front fixing hole 70f.

[0040] The hook insertion hole 65 is formed in a groove shape having a long side and a short side. The long side of the hook insertion hole 65 is parallel to the long side of the jig main body 61, and the short side of the hook insertion hole 65 is parallel to the short side of the jig main body 61. Furthermore, as shown in FIG. 7, the three hook insertion holes 65 are arranged along the width direction of the front wheel tire Tf in a state where the front fixing jig 60f is attached to the front fixing hole 70f. The interval between adjacent hook insertion holes 65 arranged along the width direction of the front wheel tire Tf is narrower than the interval between adjacent front fixing holes 70f arranged along the width direction of the front wheel tire Tf. That is, the interval between adjacent front fixing holes 70f arranged along the width direction of the front wheel tire Tf is wider than the interval between adjacent hook insertion holes 65 arranged along the width direction of the front wheel tire Tf.

[0041] The jig hook portion 62 is formed on the back surface of the jig main body 61. Further, as shown in FIG. 7 for example, in a state where the front fixing jig 60f is attached to the front fixing hole 70f, the jig hook portion 62 faces the surface (back surface 3r) opposite to the surface (front surface) facing the jig main body 61 of the floor plate 3f. The jig hook portion 62 includes a hook base portion 62a and a hook hanging portion 62b.

[0042] The hook base portion 62a is formed in a cylindrical shape with a square cross section. The base end of the hook base portion 62a is attached to the back surface of the jig main body 61. The tip of the hook base portion 62a protrudes from the back surface of the jig main body 61.

[0043] The hook hanging portion 62b is formed in a cylindrical shape with a square cross section. Also, the hook hanging portion 62b is formed continuously with the tip of the hook base portion 62a and is arranged parallel to the jig main body 61. Therefore, a gap is formed between the back surface of the jig main body 61 and the hook hanging portion 62b. In addition, the shape of the jig hook portion 62 is formed such that the gap formed between the hook hanging portion 62b and the back surface of the jig main body portion 61 becomes the gap shown in FIG. 7. Specifically, with the front fixing jig 60f attached to the front fixing hole 70f, the front first reinforcing bar 81f, the front reinforcing rib 82f, and the front second reinforcing bar 83f are arranged between the jig hook portion 62 and the back surface 3r, and the jig hook portion 62 is formed in such a shape.

[0044] The position holding portion 63 is attached to a surface (which may be described as the "outer surface" in the following description) of the jig main body portion 61 that is located at a position far from the center line CL in a state where the front fixing jig 60f is attached to the front fixing hole 70f. In addition, the position holding portion 63 includes a bracket portion 66, a cylinder portion 67, and a rod portion 68.

[0045] The bracket portion 66 includes a bracket base portion 90 and a rod support portion 91. The bracket base portion 90 is formed in a rectangular plate shape. One end surface of the two long sides of the bracket base portion 90 is attached to a position adjacent to the outer surface on the upper surface of the jig main body portion 61. Therefore, the bracket base portion 90 and the upper surface of the jig main body portion 61 are configured in an L shape when viewed from the side of the jig main body portion 61.

[0046] The rod support portion 91 is formed in a shape where two portions of a rectangular plate material are bent at an angle of approximately 90°, and has a first plate portion 91a, a second plate portion 91b, and a third plate portion 91c. One end of the first plate portion 91a is fixed to the end of the bracket base portion 90 that is far from the jig hook portion 62. In addition, a through hole (not shown) that penetrates the first plate portion 91a is formed in the first plate portion 91a.

[0047] One end of the second plate portion 91b is fixed to the other end of the first plate portion 91a and is arranged parallel to the hook base portion 62a. The third plate portion 91c has one end fixed to the other end of the second plate portion 91b and is arranged parallel to the first plate portion 91a. Further, the third plate portion 91c protrudes from the second plate portion 91b in the same direction as the first plate portion 91a. The length by which the third plate portion 91c protrudes from the second plate portion 91b is shorter than the length by which the first plate portion 91a protrudes from the second plate portion 91b.

[0048] The cylinder portion 67 includes a cylinder large-diameter portion 67a and a cylinder small-diameter portion 67b. The cylinder large-diameter portion 67a is formed in a cylindrical shape. One end of the cylinder large-diameter portion 67a (the upper end in FIG. 8) is attached to one surface of the first plate portion 91a (the lower surface in FIG. 8). Further, the hole that the cylinder large-diameter portion 67a has is arranged coaxially with the through-hole formed in the first plate portion 91a. Furthermore, the inner diameter of the hole that the cylinder large-diameter portion 67a has is larger than the inner diameter of the through-hole formed in the first plate portion 91a. The other end of the cylinder large-diameter portion 67a (the lower end in FIG. 8) is arranged at the same position as the base end of the hook base portion 62a when viewed from the radial direction of the cylinder large-diameter portion 67a (the left-right direction in FIG. 8).

[0049] The cylinder small-diameter portion 67b is formed in a cylindrical shape. The outer diameter of the cylinder small-diameter portion 67b is smaller than the inner diameter of the cylinder large-diameter portion 67a. Further, the cylinder small-diameter portion 67b is inserted into the cylinder large-diameter portion 67a from the other end of the cylinder large-diameter portion 67a (the lower end in FIG. 8). The cylinder small-diameter portion 67b and the cylinder large-diameter portion 67a are arranged coaxially. Further, as shown in FIG. 9, a stepped portion 67c is formed on the inner diameter surface of the cylinder small-diameter portion 67b. The step portion 67c is disposed at the end of the small-diameter cylinder portion 67b that is far from the large-diameter cylinder portion 67a (the lower end in FIG. 9), and protrudes from the inner diameter surface of the small-diameter cylinder portion 67b toward the central axis of the small-diameter cylinder portion 67b. As a result, the inner diameter of the small-diameter cylinder portion 67b is different between the portion where the step portion 67c is not formed and the portion where the step portion 67c is formed. The inner diameter of the small-diameter cylinder portion 67b in the portion where the step portion 67c is not formed is larger than the inner diameter of the small-diameter cylinder portion 67b in the portion where the step portion 67c is formed.

[0050] As shown in FIGS. 8 and 9, the rod portion 68 includes a large-diameter rod portion 68a, a medium-diameter rod portion 68b, a small-diameter rod portion 68c, and a grip portion 68d. The large-diameter rod portion 68a is formed as a cylinder and is disposed on the other surface of the first plate portion 91a (the upper surface in FIG. 8).

[0051] The medium-diameter rod portion 68b is formed as a cylinder having an outer diameter smaller than that of the large-diameter rod portion 68a, and is fixed to one end of the large-diameter rod portion 68a (the lower end in FIG. 9). Further, the medium-diameter rod portion 68b is disposed inside the large-diameter cylinder portion 67a and inside the portion of the small-diameter cylinder portion 67b where the step portion 67c is not formed. Further, a coil spring 69 is disposed around the medium-diameter rod portion 68b. The axial direction of the small-diameter rod portion 68c is parallel to the axial directions of the large-diameter cylinder portion 67a and the small-diameter cylinder portion 67b.

[0052] One end of the coil spring 69 (the upper end in FIG. 9) is in contact with the other surface of the first plate portion 91a (the lower surface in FIG. 9), and the other end is in contact with the step portion 67c. The direction in which the coil spring 69 expands and contracts is parallel to the axial direction of the medium-diameter rod portion 68b. The inner diameter of the coil spring 69 is larger than the inner diameter of the through-hole formed in the first plate portion 91a and the inner diameter of the portion of the small-diameter cylinder portion 67b where the step portion 67c is formed. Therefore, the coil spring 69 disposed inside the cylinder portion 67 presses the small-diameter cylinder portion 67b in a direction away from the first plate portion 91a by an extending force in a no-load state. For this reason, when the coil spring 69 disposed inside the cylinder portion 67 is in a no-load state, the rod portion 68 is moved to a position where the large-diameter rod portion 68a contacts the first plate portion 91a.

[0053] The small-diameter rod portion 68c is formed as a cylinder having an outer diameter smaller than that of the middle-diameter rod portion 68b, and is fixed to one end (the lower end in FIG. 9) of the middle-diameter rod portion 68b. Further, the small-diameter rod portion 68c is disposed inside a portion of the small-diameter cylinder portion 67b where the stepped portion 67c is formed, and is fixed to the small-diameter cylinder portion 67b. The axial direction of the small-diameter rod portion 68c is parallel to the axial directions of the large-diameter cylinder portion 67a and the small-diameter cylinder portion 67b.

[0054] The grip portion 68d is formed as a cylinder, and is fixed to the other end (the upper end in FIG. 9) of the large-diameter rod portion 68a with the central axis of the grip portion 68d orthogonal to the central axis of the large-diameter rod portion 68a. Further, the grip portion 68d is disposed at a position where it does not overlap with the third plate portion 91c when viewed from the longitudinal direction (the vertical direction in FIG. 9) of the large-diameter rod portion 68a.

[0055] The holding plate portion 64 is formed in a rectangular plate shape and is attached to the surface of the jig main body portion 61. Further, three holding holes 64a are formed in the holding plate portion 64.

[0056] The holding holes 64a are formed in a circular shape, and each overlaps with the three hook insertion holes 65 when viewed from the thickness direction of the holding plate portion 64. Further, the holding holes 64a surround the hook insertion holes 65 when viewed from the thickness direction of the holding plate portion 64. The inner diameter of the holding hole 64a is larger than the length of the long side of the hook insertion hole 65.

[0057] (Front-side binding belt) As shown in FIG. 10, the front fixing belt 22 includes a front belt main body 22a, a front cover portion 22b, a connecting ring 22f, a front first hook 25, and a front second hook 26. The front belt main body 22a is formed in a belt shape by knitting, for example, polyester fibers excellent in tensile strength.

[0058] The front cover portion 22b is disposed at a position between the front first hook 25 and the front second hook 26 in the front belt main body 22a. Further, the front cover portion 22b contacts the outer peripheral surface of the front wheel tire Tf and transmits tension to the front first hook 25, thereby reducing the friction generated between the front belt main body 22a and the front wheel tire Tf. The connecting ring 22f is attached to the proximal end 22k of the front belt main body 22a. Further, the connecting ring 22f is formed into a shape that can be connected to the hook 27f by bending a cylindrical member into a ring shape. And in a state where the hook 27f is connected to the connecting ring 22f, the front fixing belt 22 can be tightened by rotating the handle 27h.

[0059] The front first hook 25 is connected to the tip end portion 22s of the front belt main body 22a and is formed into a shape that can be attached to the hook insertion hole 65. Further, as shown in FIG. 11, the front first hook 25 includes a main body portion 25h, a connecting portion 25g, a shaft portion 25j, a retaining portion 25s, and a disc portion 25c. Note that FIG. 11(b) is a view taken along line B of FIG. 11(a), FIG. 11(c) is a view taken along line C of FIG. 11(a), and FIG. 11(d) is a view taken along line D of FIG. 11(a). The main body portion 25h is formed in a U shape.

[0060] The connecting portion 25g is formed in a columnar shape, and both ends thereof are connected to a pair of opposing flat plate portions of the main body portion 25h, respectively. Further, the connecting portion 25g is connected to the main body portion 25h in a state where the connecting portion 25g can rotate about the central axis of the connecting portion 25g as a rotation axis with respect to the main body portion 25h.

[0061] The shaft portion 25j is formed in a rod shape. One end of the shaft portion 25j is integrally formed with the main body portion 25h. The other end of the shaft portion 25j protrudes from the center of the main body portion 25h.

[0062] The retaining portion 25s is formed in a rectangular plate shape and is provided at the other end of the shaft portion 25j. Also, the retaining portion 25s is formed in a shape that can be inserted into the hook insertion hole 65. Specifically, the length of the short side of the retaining portion 25s is smaller than the width of the short side of the hook insertion hole 65. Also, the length of the long side of the retaining portion 25s is smaller than the width of the long side of the hook insertion hole 65.

[0063] Also, when viewed from the axial direction of the shaft portion 25j, the length direction of the long side of the retaining portion 25s intersects the axial direction of the connecting portion 25g. In the embodiment, as an example, a case where the length direction of the long side of the retaining portion 25s is orthogonal (intersects at 90°) to the axial direction of the connecting portion 25g when viewed from the axial direction of the shaft portion 25j will be described.

[0064] The disk portion 25c is formed in a circular plate shape. Also, the disk portion 25c is attached between the main body portion 25h and the retaining portion 25s of the shaft portion 25j. Furthermore, the disk portion 25c is disposed inside the holding hole 64a, for example, in a state where the front first hook 25 is attached to the hook insertion hole 65 as shown in FIGS. 6 and 7. Also, the outer peripheral surface of the disk portion 25c faces the inner peripheral surface of the holding hole 64a, for example, in a state where the front first hook 25 is attached to the hook insertion hole 65 as shown in FIGS. 6 and 7.

[0065] The diameter of the disk portion 25c is smaller than the inner diameter of the holding hole 64a. Therefore, in a state where the front first hook 25 is attached to the hook insertion hole 65, a gap of about several [mm] is formed between the disk portion 25c and the holding hole 64a.

[0066] The front second hook 26 is attached to a position near the proximal end 22k among the middle portions of the front belt main body 22a, is movable along the length direction of the front belt main body 22a, and is formed in a shape attachable to the hook insertion hole 65. Further, as shown in FIG. 10, the front second hook 26 has a main body portion 26h, a connecting portion 26g, a shaft portion 26j, a retaining portion 26s, and a disk portion 26c. Note that the main body portion 26h and the main body portion 25h, the connecting portion 26g and the connecting portion 25g, the shaft portion 26j and the shaft portion 25j, the retaining portion 26s and the retaining portion 25s, and the disk portion 26c and the disk portion 25c each have a similar configuration. For this reason, detailed descriptions of the main body portion 26h, the connecting portion 26g, the shaft portion 26j, the retaining portion 26s, and the disk portion 26c are omitted.

[0067] Further, the front second hook 26 can move along the length direction of the front belt main body 22a by being inserted between the main body portion 26h and the connecting portion 26g. Therefore, the front securing belt 22 includes a front first hook 25 attached to one end portion and a front second hook 26 attached to the front securing belt 22 so as to be movable along the length direction of the front securing belt 22 between both end portions.

[0068] <Rear Tire Securing Device> As shown in FIG. 2, the rear tire securing device 30 includes a rear fixing hole 70r, a rear securing jig 60r, and a rear securing belt 32.

[0069] (Rear Fixing Hole) The rear fixing hole 70r is formed in the floor plate 3f in the same manner as the front fixing hole 70f. Further, the rear fixing hole 70r is formed by a rectangular hole penetrating the floor plate 3f in the same manner as the front fixing hole 70f. In the embodiment, as an example, a case where 40 rear fixing holes 70r are formed for one rear wheel tire Tr will be described. The 40 rear fixing holes 70r form three groups. The three groups are arranged at intervals along the direction in which the vehicle carrier 1 travels.

[0070] Of the three groups, the front group is composed of eight rear fixing holes 70r and is formed by four rows of sets arranged along the direction in which the vehicle transporter 1 travels. Each row of sets has two rear fixing holes 70r. One of the two rear fixing holes 70r that each row of sets has is formed at a position where the vicinity of the center in the width direction of the rear wheel tire Tr is arranged. The other of the two rear fixing holes 70r that each row of sets has is formed at a position closer to the center line CL than one of the two rear fixing holes 70r.

[0071] Of the three groups, the rear group is composed of eight rear fixing holes 70r and is formed by four rows of sets arranged along the direction in which the vehicle transporter 1 travels. Each row of sets has two rear fixing holes 70r. One of the two rear fixing holes 70r that each row of sets has is formed at a position where the vicinity of the center in the width direction of the rear wheel tire Tr is arranged. The other of the two rear fixing holes 70r that each row of sets has is formed at a position farther from the center line CL than one of the two rear fixing holes 70r.

[0072] The group arranged between the front group and the rear group of the three groups is composed of 24 rear fixing holes 70r and is formed by eight rows of sets arranged along the direction in which the vehicle transporter 1 travels. Each row of sets has three rear fixing holes 70r. One of the three rear fixing holes 70r is formed at a position where the vicinity of the center in the width direction of the rear wheel tire Tr is arranged. The remaining two of the three rear fixing holes 70r are formed at positions closer to the center line CL and farther from the center line CL than one of the three rear fixing holes 70r, respectively.

[0073] Therefore, the plurality of rear fixing holes 70r are arranged in the area of the floor plate 3f where the rear wheel tire Tr is arranged. Further, the plurality of rear fixing holes 70r are arranged in a direction along the width direction of the rear wheel tire Tr and in a direction orthogonal to the width direction of the rear wheel tire Tr. Furthermore, the interval between adjacent rear fixing holes 70r arranged along the width direction of the rear wheel tire Tr is wider than the interval between adjacent hook insertion holes 65 arranged along the width direction of the rear wheel tire Tr.

[0074] In the embodiment, a plurality of (40) rear fixing holes 70r are formed in the floor plate 3f. Therefore, it is possible to select the rear fixing holes 70r at positions suitable for binding the rear wheel tire Tr from among the plurality of rear fixing holes 70r. The selection of the rear fixing holes 70r is performed in consideration of, for example, a position corresponding to the size of the rear wheel tire Tr and a position where contact between the front binding belt 22 and the components provided in the loading vehicle V can be avoided. Also, in the embodiment, a plurality of front fixing holes 70f and rear fixing holes 70r are formed in the floor plate 3f. Therefore, according to the wheelbase of the loading vehicle V, it is possible to select the front fixing holes 70f and rear fixing holes 70r at positions suitable for binding the front wheel tire Tf and the rear wheel tire Tr from among the plurality of front fixing holes 70f and rear fixing holes 70r.

[0075] Among the back surfaces 3r of the floor plate 3f, a rear reinforcing member (not shown) having the same configuration as the front reinforcing member 80f is attached between the portions where the rear fixing holes 70r are formed. Since the configuration of the rear reinforcing member is the same as that of the front reinforcing member 80f, a detailed description thereof is omitted. Note that the rear reinforcing member may be formed using the same member as the front reinforcing member 80f.

[0076] (Rear Binding Fixture) A pair of rear binding fixtures 60r can be attached to the rear fixing holes 70r and are arranged corresponding to one rear wheel tire Tr. Therefore, the rear tire binding device 30 includes two pairs of rear binding fixtures 60r. Note that since the configuration of the rear fixing jig 60r is the same as that of the front fixing jig 60f, a specific description thereof will be omitted.

[0077] (Rear fixing belt) As shown in FIG. 12, the rear fixing belt 32 includes a rear belt body 32a, a connecting belt portion 32b, a rear cover portion 32c, a rear first hook 51, a rear second hook 52, and a connecting hook 53.

[0078] The rear belt body 32a is formed in a belt shape by braiding, for example, polyester fibers excellent in tensile strength, and is wound around the drum 31d. In addition, a rear tightening tool 31 is attached to the base end of the rear belt body 32a.

[0079] The rear tightening tool 31 is a tightening means for tightening and fixing the rear wheel tire Tr of the loading vehicle V to the loading platform 3, and is arranged on the left and right on the rear side of the center of the loading platform 3. As shown in FIG. 12, the rear tightening tool 31 includes a handle 31h and a ratchet mechanism 31t. The ratchet mechanism 31t includes a drum 31d and operates in conjunction with an operation of an operator (such as a driver) rotating the handle 31h.

[0080] The base end of the connecting belt portion 32b is connected to the rear tightening tool 31 on the side opposite to the rear belt body 32a.

[0081] The rear cover portion 32c is disposed at a position between the rear first hook 51 and the rear tightening tool 31 of the rear belt body 32a. Further, the rear cover portion 32c contacts the outer peripheral surface of the rear wheel tire Tr and transmits tension to the rear first hook 51, thereby reducing the friction generated between the rear belt body 32a and the rear wheel tire Tr.

[0082] The rear first hook 51 is connected to the tip portion 32s of the rear belt body 32a and is formed in a shape that can be attached to the hook insertion hole 65. Further, as shown in FIG. 12, the rear first hook 51 has a main body portion 51h, a connecting portion 51g, a shaft portion 51j, a retaining portion 51s, and a disk portion 51c. Note that the main body portion 51h and the main body portion 25h, the connecting portion 51g and the connecting portion 25g, the shaft portion 51j and the shaft portion 25j, the retaining portion 51s and the retaining portion 25s, and the disk portion 51c and the disk portion 25c each have the same configuration. Therefore, detailed descriptions of the main body portion 51h, the connecting portion 51g, the shaft portion 51j, the retaining portion 51s, and the disk portion 51c are omitted.

[0083] The rear second hook 52 is attached at a position between the rear cover portion 32c and the rear fastener 31 in the middle portion of the rear belt main body 32a and is movable along the length direction of the rear belt main body 32a. The shape of the rear second hook 52 is formed into a shape that can be attached to the hook insertion hole 65. Further, as shown in FIG. 12, the rear second hook 52 has a main body portion 52h, a connecting portion 52g, a shaft portion 52j, a retaining portion 52s, and a disk portion 52c. Note that the main body portion 52h and the main body portion 25h, the connecting portion 52g and the connecting portion 25g, the shaft portion 52j and the shaft portion 25j, the retaining portion 52s and the retaining portion 25s, and the disk portion 52c and the disk portion 25c each have the same configuration. Therefore, detailed descriptions of the main body portion 52h, the connecting portion 52g, the shaft portion 52j, the retaining portion 52s, and the disk portion 52c are omitted.

[0084] Further, the rear second hook 52 can move along the length direction of the rear belt main body 32a by being inserted between the main body portion 52h and the connecting portion 52g. Therefore, the rear securing belt 32 includes a rear first hook 51 attached to one end and a rear second hook 52 attached to the front securing belt 22 so as to be movable along the length direction of the rear securing belt 32 between both ends.

[0085] As described above, the front first hook 25, the front second hook 26, the rear first hook 51, and the rear second hook 52 all have the same configuration. Therefore, the front first hook 25, the front second hook 26, the rear first hook 51, and the rear second hook 52 can be shared.

[0086] The connecting hook 53 is formed in a hook shape that can be attached to and detached from the tightening ring 11, and is connected to the tip of the connecting belt portion 32b. And in a state where the connecting hook 53 is attached to the tightening ring 11, the operator can tighten the rear fixing belt 32 by rotating the handle 31h. In addition, an opening and closing piece 53b is attached to the connecting hook 53. The opening and closing piece 53b is formed in a plate shape. Also, a spring (not shown) is attached to the opening and closing piece 53b. And in a no-load state, the opening and closing piece 53b is held in a position to close the connecting hook 53 by covering the opening portion of the connecting hook 53 with the elastic force of the spring. As described above, the tire fixing device (front tire fixing device 20, rear tire fixing device 30) of the embodiment has a plurality of fixing holes arranged in a direction along the width direction of the tire and a direction orthogonal to the width direction in a region of the floor plate 3f where the tires (front wheel tire Tf, rear wheel tire Tr) are arranged. In addition, each of a pair of fixing jigs (front tire fixing device 20, rear tire fixing device 30) that are attached to each of two fixing holes (front fixing hole 70f, rear fixing hole 70r) arranged at intervals in a direction orthogonal to the width direction of the tire and fix the tire together with the fixing belts (front fixing belt 22, rear fixing belt 32) is provided with a structure for attaching the fixing belt at a plurality of positions along the width direction of the tire. In the embodiment, as an example, the structure for attaching the fixing belt at a plurality of positions along the width direction of the tire provided in the fixing jig is a plurality of hook insertion holes 65.

[0087] <Fixture bracket> As shown in FIGS. 13 and 14, the jig bracket 9 includes a frame portion 93 and two holding pipe portions 94. For example, as shown in FIGS. 15 and 16, one front-side fixing jig 60f and two rear-side fixing jigs 60r are attached to one jig bracket 9.

[0088] The frame portion 93 is formed in a shape where two locations of a rectangular plate material are bent at an angle of approximately 90°, and has a mounting plate portion 93a and two flange portions 93b. The mounting plate portion 93a is formed in a flat plate shape. The thickness direction of the mounting plate portion 93a is parallel to the thickness direction of the waist plate 6.

[0089] In addition, three sets (a total of six locations) of hook holding holes 95 are formed in the mounting plate portion 93a in two as a set. The shape of the hook holding hole 95 is the same as the shape of the front-side fixing hole 70f and the rear-side fixing hole 70r. One set of hook holding holes 95 is arranged in the vertical direction, and three sets of hook holding holes 95 are arranged in the horizontal direction. Also, one set of hook holding holes 95 is arranged at the same interval as the interval between adjacent front-side fixing holes 70f and the interval between adjacent rear-side fixing holes 70r.

[0090] The two flange portions 93b are each formed in a rectangular flat plate shape. One of the long sides of the flange portion 93b is continuous with the left and right ends of the mounting plate portion 93a. The other of the long sides of the flange portion 93b is fixed to the waist plate 6 using welding or the like.

[0091] The two holding pipe portions 94 are each formed in a cylindrical shape. Both ends of the holding pipe portion 94 are fixed to the opposing surfaces of the two flange portions 93b, respectively. The position where the holding pipe portion 94 is fixed to the flange portion 93b is a position where a gap capable of arranging the jig hook portion 62 is formed between the holding pipe portion 94 and the waist plate 6. One of the two holding pipe portions 94 is disposed below the hook holding holes 95 arranged above among the set of hook holding holes 95. The other of the two holding pipe portions 94 is disposed below the hook holding holes 95 arranged below among the set of hook holding holes 95.

[0092] <Attachment and detachment of the fixing jig to the jig bracket> Next, with reference to FIGS. 13 to 16, the operation of attaching and detaching the front fixing jig 60f and the rear fixing jig 60r to and from the jig bracket 9 will be described. Note that the operation of attaching and detaching the front fixing jig 60f to and from the jig bracket 9 and the operation of attaching and detaching the rear fixing jig 60r to and from the jig bracket 9 are the same operation, so only the operation of attaching and detaching the front fixing jig 60f to and from the jig bracket 9 will be described. First, the operation of attaching the front fixing jig 60f to the jig bracket 9 will be described.

[0093] When attaching the front fixing jig 60f to the jig bracket 9, the two jig hook portions 62 are inserted into the set of hook holding holes 95 from above in the order from the hook hanging portion 62b to the hook base portion 62a. At this time, when the small-diameter cylinder portion 67b is pressed against the mounting plate portion 93a, the coil spring 69 contracts, and the small-diameter cylinder portion 67b and the rod portion 68 move rearward (in a direction away from the mounting plate portion 93a). When the rod portion 68 moves rearward, the large-diameter rod portion 68a moves upward and away from the first plate portion 91a. After inserting the jig hook portion 62 into the hook holding hole 95, the front fixing jig 60f is moved downward, and the small-diameter cylinder portion 67b is disposed in the hook holding hole 95. In addition, in a state where the jig hook portion 62 and the holding pipe portion 94 overlap when viewed in the thickness direction of the mounting plate portion 93a.

[0094] At this time, the rod portion 68 and the small-diameter cylinder portion 67b, which had been in contact with the mounting plate portion 93a and were moving rearward, move forward as the small-diameter cylinder portion 67b is disposed in the hook holding hole 95 with the elongation of the coil spring 69. When the rod portion 68 moves forward, the large-diameter rod portion 68a moves downward and comes into contact with the first plate portion 91a. When the small-diameter cylinder portion 67b moves forward, inside the hook holding hole 95, the mounting plate portion 93a and the small-diameter cylinder portion 67b overlap when viewed in the vertical direction. For this reason, even when a force is applied to move the front fixing jig 60f upward, the small-diameter cylinder portion 67b contacts the mounting plate portion 93a inside the hook holding hole 95. Thereby, when viewed from the thickness direction of the mounting plate portion 93a, the jig hook portion 62 does not completely overlap with the hook holding hole 95, so it is possible to prevent the front fixing jig 60f from coming off the hook holding hole 95.

[0095] Next, with reference to FIGS. 13 to 16, the operation of detaching the front fixing jig 60f from the jig bracket 9 will be described. When detaching the front fixing jig 60f from the jig bracket 9, the coil spring 69 is contracted by pulling the grip portion 68d rearward, and the small-diameter cylinder portion 67b and the rod portion 68 are moved rearward. Then, the front fixing jig 60f is moved upward, and the jig hook portion 62 is withdrawn from the hook holding hole 95 in the order from the hook base portion 62a to the hook hanging portion 62b. Thereby, the front fixing jig 60f is removed from the hook holding hole 95, and the front fixing jig 60f is detached from the jig bracket 9.

[0096] <Operation> Next, a method for binding a tire using a tire binding device (front tire binding device 20, rear tire binding device 30) will be described. When loading the loading vehicle V onto the vehicle transporter 1, with the rear shutter 4 moved to the open position, the loading vehicle V is driven onto the loading platform 3 or pulled onto the loading platform 3 using a winch. Then, as shown in FIG. 1, the left and right front wheel tires Tf are brought into contact with the tire stop blocks 23 to stop the loading vehicle V, and the loading vehicle V is loaded onto the loading platform 3. Thereafter, the left and right front wheel tires Tf are fixed to the loading platform 3 by the front tire fixing device 20, and the left and right rear wheel tires Tr are fixed to the loading platform 3 by the rear tire fixing device 30, and then the rear shutter 4 is moved to the closed position.

[0097] (Fixing of Front Wheel Tires) When fixing the front wheel tires Tf, using the front tire fixing device 20, first, the two front fixing jigs 60f are respectively attached to two front fixing holes 70f formed at positions corresponding to the outer diameter of the front wheel tires Tf and adjacent to each other along the width direction of the front wheel tires Tf. When attaching the front fixing jig 60f to the front fixing hole 70f, for example, as shown in FIGS. 1, 3, and 5, the two front fixing jigs 60f are respectively arranged at positions where both ends of the front fixing belt 22 placed on the upper side of the tire outer peripheral surface Tsf are perpendicular to the floor plate 3f. Then, the two arranged front fixing jigs 60f are attached to the front fixing holes 70f. In FIG. 5, for the sake of explanation, the illustration of the right front wheel tire Tf and the right rear wheel tire Tr is omitted.

[0098] That is, the front fixing jig 60f is attached to the front fixing hole 70f formed at a position where the contact plane in contact with the tire outer peripheral surface Tsf among the plurality of front fixing holes 70f is perpendicular to the floor plate 3f.

[0099] For this reason, the front first hook 25 and the front second hook 26 can pull the front fixing belt 22 that is in contact along the outer peripheral surface of the front wheel tire Tf with the space between both ends placed on the upper side of the front wheel tire Tf directly downward. Therefore, it is possible to fix the front wheel tires Tf in a state where the front fixing belt 22 is arranged at a position where it interferes least with components such as fenders provided on the loading vehicle V.

[0100] In the following description, the front-side fixing jig 60f disposed behind the center of the front-wheel tire Tf may be referred to as "one front-side fixing jig 60f", and the front-side fixing jig 60f disposed in front of the center of the front-wheel tire Tf may be referred to as "the other front-side fixing jig 60f". Also, one front-side fixing jig 60f is the front-side fixing jig 60f detached from the jig bracket 9.

[0101] When attaching the front-side fixing jig 60f to the front-side fixing hole 70f, the jig hook portion 62 is inserted into the front-side fixing hole 70f from above in the order from the hook hanging portion 62b to the hook base portion 62a. At this time, the cylinder small-diameter portion 67b is pressed against the floor plate 3f, so that the coil spring 69 contracts and the cylinder small-diameter portion 67b and the rod portion 68 move upward (in the direction away from the floor plate 3f). When the rod portion 68 moves upward, the rod large-diameter portion 68a moves upward and away from the first plate portion 91a. After inserting the jig hook portion 62 into the front-side fixing hole 70f, the front-side fixing jig 60f is moved toward the center line CL, the cylinder small-diameter portion 67b is disposed in the front-side fixing hole 70f, and the jig hook portion 62 and the front-side reinforcing member 80f overlap when viewed in the thickness direction of the floor plate 3f.

[0102] That is, the front-side fixing jig 60f is attached to the front-side fixing hole 70f by moving it along the width direction of the front-wheel tire Tf with the jig hook portion 62 inserted into the front-side fixing hole 70f. Specifically, the front-side fixing jig 60f is in a fixed state in which the floor plate 3f is disposed between the jig main body portion 61 and the jig hook portion 62 by moving it along the width direction of the front-wheel tire Tf with the jig hook portion 62 inserted into the front-side fixing hole 70f. Also, the plurality (two) of jig hook portions 62 are inserted into the plurality (two) of front-side fixing holes 70f arranged along the width direction of the front-wheel tire Tf among the plurality of front-side fixing holes 70f arranged along the width direction of the front-wheel tire Tf.

[0103] At this time, the rod portion 68 and the small-diameter cylinder portion 67b that were in contact with the floorboard 3f and moving upward move downward as the small-diameter cylinder portion 67b is disposed in the front fixing hole 70f with the elongation of the coil spring 69. When the rod portion 68 moves downward, the large-diameter rod portion 68a moves downward and contacts the first plate portion 91a. When the small-diameter cylinder portion 67b moves downward, inside the front fixing hole 70f, the floorboard 3f and the small-diameter cylinder portion 67b overlap when viewed from the left-right direction. Therefore, even when a force is applied to move the front fixing jig 60f in a direction away from the center line CL, the small-diameter cylinder portion 67b contacts the floorboard 3f inside the front fixing hole 70f. As a result, when viewed from the thickness direction of the floorboard 3f, the jig hook portion 62 does not completely overlap with the front fixing hole 70f, so it is possible to prevent the front fixing jig 60f from coming off the front fixing hole 70f. Therefore, the position holding portion 63 holds the fixed state in which the front fixing jig 60f is attached to the front fixing hole 70f. Further, the position holding portion 63 is disposed in the front fixing hole 70f in the fixed state.

[0104] Next, among the three hook insertion holes 65 formed in one of the front fixing jigs 60f, the retaining portion 25s of the front first hook 25 is inserted into the selected one hook insertion hole 65, and the disk portion 25c is disposed inside the holding hole 64a. When selecting one hook insertion hole 65 for one of the front fixing jigs 60f, for example, according to the state of fixing the front wheel tire Tf, the hook insertion hole 65 disposed at an appropriate position (for example, the center among the three) is selected. Furthermore, the front first hook 25 is rotated in the circumferential direction of the shaft portion 25j so that, when viewed from the thickness direction of the floorboard 3f, the jig main body portion 61 provided in one of the front fixing jigs 60f and the retaining portion 25s of the front first hook 25 overlap.

[0105] When viewed from the thickness direction of the bed plate 3f, if the jig main body 61 and the retaining portion 25s overlap, even when a force is generated to disengage the front first hook 25 from the front fixing jig 60f, the retaining portion 25s contacts the jig main body 61 from below. Therefore, the retaining portion 25s can prevent the front first hook 25 from detaching from the front fixing jig 60f. Therefore, the front first hook 25 is provided with a retaining portion 25s that prevents the front first hook 25 from detaching from the front fixing jig 60f in a state where the front first hook 25 is attached to the hook insertion hole 65 and the width direction of the front fixing belt 22 is parallel to the width direction of the front wheel tire Tf.

[0106] Thereafter, as shown in FIG. 3, the front cover portion 22b is placed on the upper side of the outer peripheral surface Tsf of the tire. Then, of the three hook insertion holes 65 formed in the other front fixing jig 60f, the retaining portion 26s of the front second hook 26 is inserted into a selected one of the hook insertion holes 65, and the disc portion 26c is disposed inside the holding hole 64a. When selecting one hook insertion hole 65 for the other front fixing jig 60f as well, similar to one front fixing jig 60f, for example, according to the state of fixing the front wheel tire Tf, a hook insertion hole 65 disposed at an appropriate position is selected.

[0107] Furthermore, the front second hook 26 is rotated in the circumferential direction of the shaft portion 26j so that, when viewed from the thickness direction of the bed plate 3f, the jig main body 61 provided in the other front fixing jig 60f and the retaining portion 26s of the front second hook 26 overlap. Therefore, the front first hook 25 and the front second hook 26 can set the position for fixing the front wheel tire Tf by moving along the width direction of the front wheel tire Tf.

[0108] Next, the proximal end 22k of the front belt main body 22a is moved forward, the connecting ring 22f is connected to the hook 27f, and then the handle 27h is rotated to tighten the front fixing belt 22. When the front fixing belt 22 is tightened, with the front cover portion 22b in contact with the outer peripheral surface Tsf, the left and right front wheel tires Tf can be tightened and fixed to the floor plate 3f respectively.

[0109] As a result, the front first hook 25 is held by one of the front fixing jigs 60f at a position where the posture of the front fixing belt 22 is perpendicular to the floor plate 3f by the tightening force generated by the front fixing belt 22. In addition to this, the front second hook 26 is held by the other front fixing jig 60f at a position where the posture of the front fixing belt 22 is perpendicular to the floor plate 3f by the tightening force generated by the front fixing belt 22. Therefore, one end of the front fixing belt 22 is connected to one of the front fixing jigs 60f, and a part between both ends is in contact with the outer peripheral surface Tsf, and the other end is connected to the front tightening tool 27 via the other front fixing jig 60f.

[0110] Next, a procedure for releasing the fixation of the front wheel tire Tf by the front tire fixing device 20 will be described. When releasing the fixation of the front wheel tire Tf, first, rotate the handle 27h to loosen the front fixing belt 22.

[0111] Furthermore, rotate the front second hook 26 in the circumferential direction of the shaft portion 26j, and pull out the retaining portion 26s from the hook insertion hole 65 formed in the other front fixing jig 60f. Also, rotate the front first hook 25 in the circumferential direction of the shaft portion 25j, and pull out the retaining portion 25s from the hook insertion hole 65 formed in one of the front fixing jigs 60f. After that, remove the front fixing belt 22 from the front wheel tire Tf. The front fixing belt 22 removed from the front wheel tire Tf is stored, for example, in the passenger seat or the like.

[0112] Next, with respect to one of the front fixing jigs 60f, for example, while pressing the thumb against the third plate portion 91c, perform an operation of pulling the grip portion 68d with fingers other than the thumb to contract the coil spring 69, thereby moving the small diameter cylinder portion 67b and the rod portion 68 upward. Then, move one of the front-side fixing jigs 60f in a direction away from the center line CL. As a result, the jig hook portion 62 is withdrawn from the front-side fixing hole 70f in the order of the hook base portion 62a and the hook hanging portion 62b, removing one of the front-side fixing jigs 60f from the front-side fixing hole 70f and releasing the fixation of the front-wheel tire Tf.

[0113] That is, the front-side fixing jig 60f can change between the fixed state and the detached state by moving along the width direction of the front-wheel tire Tf with the jig hook portion 62 inserted into the front-side fixing hole 70f. The detached state is a state in which the floor plate 3f is not disposed between the jig main body portion 61 and the jig hook portion 62, and a state in which the front-side fixing jig 60f is not attached to the front-side fixing hole 70f. One of the front-side fixing jigs 60f removed from the front-side fixing hole 70f is attached to the jig bracket 9. The other front-side fixing jig 60f may be attached to the front-side fixing hole 70f, or may be removed from the front-side fixing hole 70f and stored in the passenger seat or the like.

[0114] (Fixation of the rear-wheel tire) When fixing the rear-wheel tire Tr, use the rear-side tire fixing device 30. First, attach two rear-side fixing jigs 60r to two rear-side fixing holes 70r that are formed at positions corresponding to the outer diameter of the rear-wheel tire Tr and are adjacent to each other along the width direction of the rear-wheel tire Tr. When attaching the rear-side fixing jig 60r to the rear-side fixing hole 70r, for example, as shown in FIGS. 1 and 5, place the two rear-side fixing jigs 60r at positions where both ends of the rear-side fixing belt 32 placed on the upper side of the tire outer peripheral surface Tsr are perpendicular to the floor plate 3f. Then, attach the two arranged rear-side fixing jigs 60r to the rear-side fixing holes 70r. In the following description, the rear-side fixing jig 60r disposed in front of the center of the rear-wheel tire Tr may be described as "one of the rear-side fixing jigs 60r", and the rear-side fixing jig 60r disposed behind the center of the rear-wheel tire Tr may be described as "the other rear-side fixing jig 60r". Also, both of the two rear-side fixing jigs 60r are detached from the jig bracket 9 and attached to the rear-side fixing holes 70r.

[0115] When attaching the rear fixing jig 60r to the rear fixing hole 70r, perform the same operations as when attaching the front fixing jig 60f to the front fixing hole 70f, and make the jig hook portion 62 and the rear reinforcing member overlap when viewed from the thickness direction of the floor board 3f. At this time, inside the rear fixing hole 70r, the floor board 3f and the small-diameter cylinder portion 67b overlap when viewed from the left-right direction. For this reason, even when a force is applied to move the rear fixing jig 60r in a direction away from the center line CL, the small-diameter cylinder portion 67b contacts the floor board 3f inside the rear fixing hole 70r. As a result, when viewed from the thickness direction of the floor board 3f, the jig hook portion 62 does not completely overlap with the rear fixing hole 70r, so it is possible to prevent the rear fixing jig 60r from coming off the rear fixing hole 70r.

[0116] Next, insert the retaining portion 51s of the rear first hook 51 into one of the three hook insertion holes 65 formed in one of the rear fixing jigs 60r, and place the disk portion 51c inside the holding hole 64a. When selecting one hook insertion hole 65 for one of the rear fixing jigs 60r, for example, select the hook insertion hole 65 arranged at an appropriate position (for example, the center among the three) according to the state of fixing the rear wheel tire Tr. Furthermore, rotate the rear first hook 51 in the circumferential direction of the shaft portion 51j so that, when viewed from the thickness direction of the floor board 3f, the jig main body portion 61 provided in one of the rear fixing jigs 60r and the retaining portion 51s of the rear first hook 51 overlap.

[0117] After that, the rear cover portion 32c is placed on the upper side of the outer peripheral surface Tsr of the tire. Then, among the three hook insertion holes 65 formed in the other rear binding jig 60r, the retaining portion 52s of the rear second hook 52 is inserted into a selected one of the hook insertion holes 65, and the disc portion 52c is disposed inside the holding hole 64a. Note that when selecting one hook insertion hole 65 for the other rear binding jig 60r as well, similar to the one rear binding jig 60r, for example, according to the state of binding the rear wheel tire Tr, a hook insertion hole 65 disposed at an appropriate position is selected. Furthermore, the rear second hook 52 is rotated in the circumferential direction of the shaft portion 52j so that, when viewed in the thickness direction of the floor plate 3f, the jig main body portion 61 provided in the other rear binding jig 60r and the retaining portion 52s of the rear second hook 52 overlap each other.

[0118] Next, after attaching the connecting hook 53 to the tightening ring 11, the handle 31h is rotated to tighten the rear binding belt 32. When the rear binding belt 32 is tightened, with the rear cover portion 32c in contact with the outer peripheral surface Tsr, the left and right rear wheel tires Tr can be tightened and fixed to the floor plate 3f, respectively.

[0119] Thereby, the rear first hook 51 is held by the one rear binding jig 60r at a position where the posture of the rear binding belt 32 becomes perpendicular to the floor plate 3f by the tightening force generated by the rear binding belt 32. In addition to this, the rear second hook 52 is held by the other rear binding jig 60r at a position where the posture of the rear binding belt 32 becomes perpendicular to the floor plate 3f by the tightening force generated by the rear binding belt 32. Therefore, one end of the rear binding belt 32 is connected to the one rear binding jig 60r, and while a part between both ends is in contact with the outer peripheral surface Tsr, the other end is connected to the rear tightening tool 31 via the other rear binding jig 60r.

[0120] Next, a procedure for releasing the binding of the rear wheel tire Tr by the rear tire binding device 30 will be described. When releasing the restraint of the rear wheel tire Tr, first rotate the handle 31h to loosen the rear restraint belt 32.

[0121] Furthermore, rotate the rear second hook 52 in the circumferential direction of the shaft portion 52j, and pull out the retaining portion 52s from the hook insertion hole 65 formed in the other rear restraint jig 60r. Also, rotate the rear first hook 51 in the circumferential direction of the shaft portion 51j, and pull out the retaining portion 51s from the hook insertion hole 65 formed in one rear restraint jig 60r. Thereafter, remove the rear restraint belt 32 from the rear wheel tire Tr. The rear restraint belt 32 removed from the rear wheel tire Tr is stored, for example, in the passenger seat or the like.

[0122] Next, with respect to the two rear restraint jigs 60r, for example, while pressing the thumb against the third plate portion 91c, perform an operation of pulling the grip portion 68d with the fingers other than the thumb to contract the coil spring 69, thereby moving the small-diameter cylinder portion 67b and the rod portion 68 upward. Then, move the two rear restraint jigs 60r in a direction away from the center line CL, and pull out the jig hook portion 62 from the rear fixing hole 70r in the order from the hook base portion 62a to the hook hanging portion 62b to release the restraint of the rear wheel tire Tr. The two rear restraint jigs 60r removed from the rear fixing hole 70r are attached to the jig bracket 9.

[0123] <Actions and Effects of the Embodiment> The tire restraint device (front tire restraint device 20, rear tire restraint device 30) of the embodiment can achieve the following actions and effects. (1) In the region of the bed plate 3f where the tires (front wheel tire Tf, rear wheel tire Tr) are arranged, a plurality of fixing holes are formed, which are arranged in a direction along the width direction of the tire and a direction orthogonal to the width direction. In addition, each of two fixing holes (front fixing hole 70f, rear fixing hole 70r) arranged at intervals in a direction orthogonal to the width direction of the tire is attached to, and together with the binding belts (front binding belt 22, rear binding belt 32), a pair of binding jigs (front tire binding device 20, rear tire binding device 30) for binding the tire is provided with a structure for attaching the binding belt at a plurality of positions along the width direction of the tire. Therefore, it is possible to select fixing holes at positions suitable for binding the tire from the plurality of fixing holes arranged in the bed plate 3f in a direction along the width direction of the tire and a direction orthogonal to the width direction of the tire. In addition, among the plurality of hook insertion holes 65 which are an example of the structure for attaching the binding belt, it is possible to select hook insertion holes 65 at positions suitable for binding the tire in the width direction of the tire. As a result, it is possible to improve the degree of freedom in the position for binding the tire by combining the fixing holes selected from the plurality of fixing holes arranged in the bed plate 3f and the hook insertion holes 65 formed in the binding jig.

[0124] Therefore, in order to apply to a variety of vehicles with different wheelbases and tire sizes, it is not necessary to form many openings in the bed plate 3f, and it is not necessary to add a structure for reinforcing the bed plate 3f. Thereby, it is possible to provide a tire binding device capable of suppressing an increase in weight without reducing the degree of freedom in the position for binding the tire. (2) A plurality of fixing holes (front fixing hole 70f, rear fixing hole 70r) are arranged in the area of the floor plate 3f where the tires (front wheel tire Tf, rear wheel tire Tr) are arranged, and are arranged in a direction along the width direction of the tire and a direction orthogonal to the width direction of the tire. Also, the binding belts (front binding belt 22, rear binding belt 32) are provided with a first hook (front first hook 25, rear first hook 51) and a second hook (front second hook 26, rear second hook 52). In addition, the binding jig (front tire binding device 20, rear tire binding device 30) is formed with a plurality of hook insertion holes 65 to which the first hook or the second hook can be attached. And the plurality of hook insertion holes 65 are arranged along the width direction of the tire in a state where the binding jig is attached to the fixing hole.

[0125] Therefore, it becomes possible to select a fixing hole at a position suitable for binding the tire in a direction along the width direction of the tire and a direction orthogonal to the width direction of the tire from the plurality of fixing holes arranged in the floor plate 3f. In addition, among the plurality of hook insertion holes 65 formed in the binding jig, it becomes possible to select a hook insertion hole 65 at a position suitable for binding the tire in the width direction of the tire. As a result, it becomes possible to improve the degree of freedom in the position for binding the tire by the combination of the fixing hole selected from the plurality of fixing holes arranged in the floor plate 3f and the hook insertion hole 65 formed in the binding jig.

[0126] Therefore, in order to apply to a variety of vehicles with different wheelbases and tire sizes, it is not necessary to form many openings in the floor plate 3f, and it is not necessary to add a structure for reinforcing the floor plate 3f. Thereby, it becomes possible to provide a tire binding device capable of suppressing an increase in weight without reducing the degree of freedom in the position for binding the tire.

[0127] (3) The fixing jig has a jig body portion 61 with a hook insertion hole 65 formed on its surface and its back surface facing the surface of the floor board 3f with the fixing jig attached to the fixing hole, and a jig hook portion 62 facing the back surface 3r of the floor board 3f with the fixing jig attached to the fixing hole. In addition, the fixing jig can change between a fixed state and a detached state by moving the jig hook portion 62 along the width direction of the tire while the jig hook portion 62 is inserted into the fixing hole. Therefore, when the fixing jig is attached to the fixing hole, the jig body portion 61 faces the surface of the floor board 3f and the jig hook portion 62 faces the back surface 3r, so that the floor board 3f is sandwiched by the fixing jig. As a result, the state of attaching the fixing jig to the fixing hole can be stabilized by the jig body portion 61 and the jig hook portion 62.

[0128] (4) The fixing jig includes a plurality of jig hook portions 62. Further, the plurality of jig hook portions 62 are inserted into a plurality of fixing holes arranged along the width direction of the tire among the plurality of fixing holes arranged along the width direction of the tire. Therefore, even when a force in the direction of rotating the fixing jig is applied when viewed from the thickness direction of the floor board 3f in a state where the fixing jig is attached to the fixing hole, the displacement of the fixing jig can be suppressed by the plurality of jig hook portions 62. As a result, the state of attaching the fixing jig to the fixing hole can be stabilized by the plurality of jig hook portions 62 arranged along the width direction of the tire.

[0129] (5) The fixing jig further includes a plate-shaped holding plate portion 64 attached to the surface of the jig body portion 61. Further, a circular holding hole 64a is formed in the holding plate portion 64, which overlaps the hook insertion hole 65 when viewed from the thickness direction of the holding plate portion 64 and surrounds the hook insertion hole 65 when viewed from the thickness direction of the holding plate portion 64. And at least one of the first hook and the second hook includes a circular disk portion disposed inside the holding hole 64a with the hook attached to the hook insertion hole 65. As a result, with the hook attached to the hook insertion hole 65, the outer peripheral surface of the disk portion faces the inner peripheral surface of the holding hole 64a. Therefore, even if the hook is displaced with respect to the binding jig, the disk portion comes into contact with the inner peripheral surface of the holding hole 64a, making it possible to suppress the displacement of the hook.

[0130] (6) The binding jig further includes a position holding portion 63 that holds the state in which the binding jig is attached to the fixing hole. Further, the position holding portion 63 is disposed in the fixing hole with the binding jig attached to the fixing hole. As a result, when the binding jig is attached to the fixing hole, the position holding portion 63 enables the state in which the binding jig is attached to the fixing hole to be held, and it is possible to improve the stability of the state in which the tire is bound.

[0131] (7) At least one of the first hook and the second hook includes a retaining portion (retaining portions 25s, 26s, 51s, 52s) that prevents detachment from the binding jig. For this reason, when the jig main body portion 61 and the retaining portion overlap when viewed in the thickness direction of the floor board 3f, a force for tensioning the binding belt is generated, and even when a force for detaching the hook from the binding jig is generated, the retaining portion contacts the jig main body portion 61. As a result, in the state where the tire is bound, the retaining portion can prevent the hook from detaching from the binding jig. (8) The interval between adjacent fixing holes (front fixing hole 70f, rear fixing hole 70r) arranged along the width direction of the tire (front wheel tire Tf, rear wheel tire Tr) is wider than the interval between adjacent hook insertion holes 65 arranged along the width direction of the tire. For this reason, after selecting a fixing hole at a position suitable for binding the tire in the direction along the width direction of the tire from a plurality of fixing holes, it is possible to select a hook insertion hole 65 at a detailed position suitable for binding the tire in the width direction of the tire from a plurality of hook insertion holes 65. As a result, it becomes possible to improve the degree of freedom in selecting the position for binding the tire by combining the fixing holes selected from the plurality of fixing holes and the hook insertion holes 65 selected from the plurality of hook insertion holes 65.

[0132] Moreover, in the case of a vehicle transporter equipped with the tire binding devices (front tire binding device 20, rear tire binding device 30) of the embodiment, the following operations and effects can be achieved. (9) The vehicle transporter 1 is equipped with tire binding devices (front tire binding device 20, rear tire binding device 30). For this reason, it becomes possible to improve the degree of freedom in the position for binding the tire by combining the fixing holes selected from the plurality of fixing holes arranged on the floor plate 3f and the hook insertion holes 65 formed in the binding jig.

[0133] As a result, in order to apply to a wide variety of vehicles with different wheelbases and tire sizes, it is not necessary to form many openings in the floor plate 3f, and it is not necessary to add a structure for reinforcing the floor plate 3f. Therefore, it becomes possible to provide the vehicle transporter 1 capable of suppressing an increase in weight without reducing the degree of freedom in the position for binding the tire.

[0134] <Modification Example> (1) In the embodiment, the configuration in which the tire binding devices (front tire binding device 20, rear tire binding device 30) are equipped on the loading platform 3 of the vehicle transporter 1 has been described, but it is not limited thereto. That is, for example, the tire binding device can be applied to various vehicles as long as it is configured to bind the tire to be bound to the floor plate using a tightening tool. Therefore, the tire binding device can also be applied to, for example, ships, aircraft, etc.

[0135] (2) In the embodiment, the case where the front fixing holes 70f and the rear fixing holes 70r are formed in the floor plate 3f has been described, but it is not limited thereto. That is, for example, only the front fixing holes 70f or only the rear fixing holes 70r may be formed in the floor plate 3f.

[0136] (3) In the embodiment, the front fixing jig 60f and the rear fixing jig 60r are attached to the jig bracket 9 attached to the lumbar plate 6, but the present invention is not limited to this. That is, for example, an opening similar to the hook holding hole 95 may be formed in the lumbar plate 6, and further, a holding pipe portion 94 may be fixed to the surface of the lumbar plate 6 facing forward. Since the lumbar plate 6 can be replaced by removing the bolts, it is possible to replace the lumbar plate 6 with the jig bracket 9 attached and the lumbar plate 6 without the jig bracket 9 as needed.

[0137] (4) In the embodiment, the configuration of the front tire fixing device 20 is configured to include the tire stop block 23, but the present invention is not limited to this, and the configuration of the front tire fixing device 20 may be configured without the tire stop block 23. (5) In the embodiment, the structure for attaching the fixing belts at a plurality of positions along the width direction of the tire provided in the fixing jig is the plurality of hook insertion holes 65, but the present invention is not limited to this. That is, the structure for attaching the fixing belts at a plurality of positions along the width direction of the tire provided in the fixing jig may be, for example, a structure in which the first hook and the second hook can be attached to the fixing jig by a configuration using magnetic force. (6) In the embodiment, the configuration of the jig bracket 9 is configured to include the frame portion 93 and the two holding pipe portions 94, but the present invention is not limited to this. That is, the configuration of the jig bracket 9 may be, for example, as shown in FIGS. 17 to 19, a configuration including the frame portion 93, one holding plate portion 95, and one holding pipe portion 94. Note that FIG. 17(b) is a view taken along the arrow B of FIG. 17(a). Further, FIG. 18(b) is a view taken along the arrow B of FIG. 18(a). One holding plate portion 95 is disposed below the hook holding hole 95 arranged above among the set of hook holding holes 95. In addition, the holding plate portion 95 is formed in a shape obtained by bending two locations parallel to the long side of a rectangular plate material. The short sides of the plate material forming the holding plate portion 95 are respectively fixed to the opposing surfaces among the two flange portions 93b. Further, the holding plate portion 95 has a first holding portion 95a, a second holding portion 95b, and an inclined end portion 95c, which are formed by bending two locations of the plate material. The first holding portion 95a faces the hook base portion 62a in a state where the binding jig (front tire binding device 20, rear tire binding device 30) is attached to the jig bracket 9. The second holding portion 95b is bent at an angle of approximately 90° with respect to the first holding portion 95a and faces the hook hanging portion 62b in a state where the binding jig is attached to the jig bracket 9. The inclined end portion 95c is bent at an angle greater than 90° with respect to the second holding portion 95b and is inclined downward as it approaches the waist plate 6 from the attachment plate portion 93a. One holding pipe portion 94 is disposed below the hook holding holes 95 arranged below among a set of hook holding holes 95. The position where one holding pipe portion 94 is fixed to the flange portion 93b is a position where a gap capable of disposing the jig hook portion 62 is formed between the holding pipe portion 94 and the waist plate 6. (7) In the embodiment, the configuration of the jig bracket 9 is such that three sets of hook holding holes 95 are formed in the attachment plate portion 93a, and one front binding jig 60f and two rear binding jigs 60r are attached to one jig bracket 9. However, the configuration of the jig bracket 9 is not limited to this. That is, the configuration of the jig bracket 9 may be, for example, as shown in FIG. 17(a), such that four sets of hook holding holes 95 are formed in the attachment plate portion 93a, and two front binding jigs 60f and two rear binding jigs 60r are attached to one jig bracket 9. In the embodiment, the jig bracket 9 is configured such that a part of the frame portion 93 is fixed to the lumbar plate 6 using welding or the like, but the present invention is not limited to this. That is, the jig bracket 9 may be configured such that, for example, as shown in FIGS. 17 and 18, a part of the frame portion 93 is fixed to the lumbar plate (not shown) using bolts (not shown) and nuts 96. Specifically, the frame portion 93 is configured to include a mounting plate portion 93a, two flange portions 93b, and two bracket flat plate portions 93c. The two bracket flat plate portions 93c are each formed in a rectangular flat plate shape. Further, the thickness direction of the bracket flat plate portion 93c is parallel to the thickness direction of the lumbar plate 6. One of the long sides of the bracket flat plate portion 93c is continuous with the end of the flange portion 93b opposite to the end continuous with the mounting plate portion 93a. The other of the long sides of the flange portion 93b is fixed to the lumbar plate 6 using welding or the like. Further, two bolt holes (not shown) for inserting bolts are formed in the bracket flat plate portion 93c.

Explanation of Signs

[0138] 1 Vehicle carrier 2 Chassis frame 3 Loading platform 3f Floor board 4 Rear spoiler 5 Torii frame 6 Lumbar plate 7 Mirror plate 8 Loading platform lifting device 9 Jig bracket 10 Cross frame 11 Tightening ring 20 Front tire fixing device (tire fixing device) 21 Towing device 22 Front fixing belt 23 Tire stopper block 25 Front first hook 26 Front second hook 27 Front tightening tool 30 Rear Tire Binding Device (Tire Binding Device) 31 Rear Tightening Tool 32 Rear Binding Belt 51 Rear First Hook 52 Rear Second Hook 60f Front Binding Fixture 60r Rear Binding Fixture 61 Fixture Body Part 62 Fixture Hook Part 62a Hook Base 62b Hook Hanging Part 63 Position Holding Part 64 Holding Plate Part 65 Hook Insertion Hole 66 Bracket Part 67 Cylinder Part 68 Rod Part 69 Coil Spring 70f Front Fixing Hole 70r Rear Fixing Hole 80f Front Reinforcing Member V Loading Vehicle Tf Front Wheel Tire Tr Rear Wheel Tire

Claims

1. A tire fastening device for fastening a tire to a floor plate using a fastener, a plurality of fixing holes are formed in an area of ​​the floor plate where the tire is placed, the fixing holes being arranged in a direction along the width direction of the tire and a direction along a direction perpendicular to the width direction; and a pair of fastening jigs are attached to each of the two fixing holes arranged at a distance from each other in the direction perpendicular to the width direction and fasten the tire together with a fastening belt, and each of the fastening jigs is provided with a structure for attaching the fastening belt at a plurality of positions along the width direction of the tire, A reinforcing member is attached to the rear surface of the floor plate near the fixing hole so that the portion of the floor plate where the fixing hole is formed can withstand the force acting on the floor plate when the tire is fastened, The fastening jig is a structure for attaching the fastening belt is provided on the front side, and the back side includes a jig main body portion that faces a surface of the floor plate on which the tire is placed when the fastening jig is attached to the fixing hole, and a jig hook portion that faces a surface of the floor plate opposite to the surface that faces the jig main body when the fastening jig is attached to the fixing hole, A tire fastening device in which, with the fastening jig attached to the fixing hole, the floor plate and the reinforcing member are disposed between the jig main body portion and the jig hook portion.

2. A tire fastening device for fastening a tire to a floor plate using a fastener, A plurality of fixing holes formed in the floor plate; A pair of fastening jigs that can be attached to the fixing holes; a fastening belt having one end connected to one of the set of fastening tools and the other end connected to the fastener via the other of the set of fastening tools with a portion between both ends in contact with the outer circumferential surface of the tire; The plurality of fixing holes are arranged in a region of the floor panel where the tire is placed, and are arranged in a direction along a width direction of the tire and a direction along a direction perpendicular to the width direction, The lashing belt includes a first hook attached to the one end and a second hook attached to the lashing belt so as to be movable between the two ends along the length direction of the lashing belt, The fastening jig is formed with a plurality of hook insertion holes into which the first hook or the second hook can be attached, the plurality of hook insertion holes are arranged along the width direction of the tire in a state in which the fastening jig is attached to the fixing hole, A reinforcing member is attached to the rear surface of the floor plate near the fixing hole so that the portion of the floor plate where the fixing hole is formed can withstand the force acting on the floor plate when the tire is fastened, The fastening jig is a jig body portion having a front side formed with the hook insertion hole and a back side facing a surface of the floor plate on which the tire is placed when the fastening jig is attached to the fixing hole, and a jig hook portion facing a surface of the floor plate opposite to the surface facing the jig body portion when the fastening jig is attached to the fixing hole, A tire fastening device in which, with the fastening jig attached to the fixing hole, the floor plate and the reinforcing member are disposed between the jig main body portion and the jig hook portion.

3. A tire fastening device as described in claim 2, which can be changed between a fixed state in which the floor plate is arranged between the jig main body portion and the jig hook portion, and a detached state in which the floor plate is not arranged between the jig main body portion and the jig hook portion by moving the jig hook portion along the width direction of the tire while inserted into the fixing hole.

4. The fastening jig includes a plurality of the jig hook portions, A tire fastening device as described in claim 3, wherein the plurality of jig hook portions are inserted into a plurality of fixing holes arranged along the width direction of the tire among the plurality of fixing holes while being arranged along the width direction of the tire.

5. The fastening jig further includes a plate-shaped holding plate portion attached to the front side, The retaining plate portion has a circular retaining hole formed therein, the circular retaining hole being overlapped with the hook insertion hole as viewed in a thickness direction of the retaining plate portion and surrounding the hook insertion hole as viewed in the thickness direction of the retaining plate portion, A tire fastening device as described in claim 3 or claim 4, wherein at least one of the first hook and the second hook has a circular disk portion that is positioned inside the retaining hole when attached to the hook insertion hole.

6. The fastening jig further includes a position retaining portion for retaining the fixed state, The tire fastening device according to claim 3 , wherein the position maintaining portion is disposed in the fixing hole in the fixed state.

7. A tire securing device as described in any one of claims 2 to 6, wherein at least one of the first hook and the second hook is provided with a slip-out prevention portion that prevents the at least one hook from coming off the securing jig when the at least one hook is attached to the hook insertion hole and the width direction of the securing belt is oriented parallel to the width direction of the tire.

8. A tire fastening device as described in any one of claims 2 to 7, wherein the spacing between adjacent fixing holes arranged along the width direction of the tire is wider than the spacing between adjacent hook insertion holes arranged along the width direction of the tire.

9. A vehicle transporter comprising a tire fastening device according to any one of claims 1 to 8.

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