JP6256219B2 - Anti-theft structure for vehicle spare tires - Google Patents

Description

  The present invention relates to an antitheft structure for a spare tire for a vehicle.

  Patent Document 1 discloses a configuration in which a spare tire holder is provided on the underside of a vehicle. The spare tire holder includes a support portion (spare tire holding portion) that supports a vehicle spare tire from below. And a jack device (wire hoisting device) that raises and lowers the support portion. Moreover, in patent document 1, the opening formed in the floor part of the vehicle is closed with a cap, and the jack apparatus cannot be accessed unless the cap is removed from the vehicle interior side.

Japanese Patent Laid-Open No. 9-58535

  By the way, the jack apparatus of the above-mentioned patent document 1 is provided on the lower floor side of the vehicle in consideration of the assembling property of the vehicle spare tire so that the jack apparatus can be operated from the lower floor side in a vehicle assembly factory or the like. It is configured. For this reason, even after the assembly of the vehicle spare tire, there is a possibility that the jack device may be directly operated from below the floor, and there is room for improvement from the viewpoint of preventing the vehicle spare tire from being stolen.

  In view of the above facts, the present invention has an object to obtain a vehicle spare tire anti-theft structure capable of preventing the vehicle spare tire from being stolen while maintaining good assembly of the vehicle spare tire. To do.

  The anti-theft structure for a spare tire for a vehicle according to the first aspect of the present invention is provided so as to be movable in the vertical direction of the vehicle below the floor of the vehicle and holds the spare tire for the vehicle. A wire hoisting device that is provided on the vehicle upper side than the floor portion and connected to the spare tire holding portion via a wire, and the vehicle hoisting device is provided with the vehicle vertical direction as an axial direction, An upper operation unit operated from the upper end side in the axial direction and a lower operation unit operated from the lower end side in the axial direction, and a shaft that winds or unwinds the wire by rotating around the axis; A shaft cover that is attached to the lower end portion in the axial direction so that the lower operation portion cannot be operated, and extends from the floor portion toward a position close to the shaft cover, and from the vehicle lower side It has a extending portion which inhibits access to Yafutokaba, the.

  In the anti-theft structure for a spare tire for a vehicle according to the first aspect of the present invention, the spare tire holding portion is provided on the vehicle lower side (under the floor) than the floor portion of the vehicle. A wire hoisting device connected to the spare tire holding part via a wire is provided on the vehicle upper side (floor upper side). The wire hoisting device is provided with a shaft whose axial direction is the vertical direction of the vehicle. By rotating this shaft, the wire is wound up or down to move the spare tire holding portion in the vertical direction of the vehicle. Here, the shaft includes an upper operation unit operated from the upper end side in the axial direction and a lower operation unit operated from the lower end side in the axial direction. Thereby, when assembling a vehicle spare tire in a vehicle assembly factory or the like, it is not necessary to operate the shaft from the upper side of the floor, and the shaft can be rotated by operating the lower operation portion from the lower side of the floor. On the other hand, during normal use such as when the tire is punctured, the occupant can rotate the shaft by operating the upper operation section from above the floor.

  In addition, a shaft cover that makes the lower operation unit inoperable is attached to the lower end portion in the axial direction of the shaft. Thereby, after a vehicle spare tire is assembled at a vehicle assembly factory or the like, the shaft can be prevented from being operated from below the floor by attaching the shaft cover to the shaft.

  Furthermore, the extension part is extended toward the proximity position of the shaft cover from the floor part. Thereby, even if it is a case where the lower surface of a vehicle is looked into from the lower floor side, since a shaft cannot be seen at first glance, it can suppress that the spare tire for vehicles is stolen. Moreover, since the access to the shaft cover from the vehicle lower side is obstructed by the extending portion, it is possible to prevent the shaft cover from being removed.

  The anti-theft structure for a spare tire for a vehicle according to a second aspect of the present invention is the anti-theft structure for a spare tire for a vehicle according to the first aspect, wherein the lower operation portion is a shaft pin protruding from the outer peripheral surface of the shaft, The shaft cover is engaged with or fixed to the shaft pin and cannot be removed.

  In the vehicle anti-theft tire anti-theft structure according to the second aspect of the present invention, the shaft pin can be prevented from being operated by engaging or fixing the shaft cover to the shaft pin.

  The anti-theft structure for a spare tire for a vehicle according to a third aspect of the present invention is the anti-theft structure for a spare tire for a vehicle according to the second aspect, wherein the shaft cover is attached to the shaft pin in a state where the shaft cover is attached to the shaft. A fitting claw to be fitted is provided.

  In the vehicle spare tire anti-theft structure according to the third aspect of the present invention, the mounting strength of the shaft cover can be improved by fitting the fitting claw to the shaft pin.

  The anti-theft structure for a spare tire for a vehicle according to a fourth aspect of the present invention is the bracket according to any one of the first to third aspects, wherein the extended portion is fixed to the floor portion. The wire hoisting device is attached to the floor portion via the bracket, and the bracket and the floor portion form a closed cross section.

  In the vehicle anti-theft tire anti-theft structure according to the fourth aspect of the present invention, it is possible to improve the rigidity of the portion where the wire hoisting device is fixed by forming a closed cross section with the bracket and the floor. it can.

  As described above, according to the invention according to claim 1, the vehicle spare tire can be prevented from being stolen while the assembling property of the vehicle spare tire is favorably maintained. .

  According to the invention which concerns on Claim 2 and Claim 3, it has the outstanding effect that it can prevent effectively that a shaft is operated from the under floor side.

  According to the invention which concerns on Claim 4, it has the outstanding effect that the fixed state of a wire winding apparatus can be maintained favorable.

It is sectional drawing which looked at the antitheft structure of the spare tire for vehicles which concerns on embodiment from the vehicle back side, and is a figure which shows the state by which the spare tire for vehicles was hold | maintained. It is sectional drawing which shows the wire winding apparatus which concerns on embodiment, and is a figure which shows the state before a shaft cover is attached to a shaft. It is a perspective view which shows the shaft cover which concerns on embodiment. It is an expanded sectional view expanding and showing the lower part of the wire hoisting device concerning an embodiment, and is a figure showing the state where the shaft cover was attached to the shaft. It is sectional drawing which shows the wire winding apparatus which concerns on embodiment, and is a figure which shows the state by which the shaft is operated from the floor upper side. It is an enlarged perspective view which expands and shows the lower part of the wire winding apparatus which concerns on embodiment, and is a figure which shows the state just before a shaft is operated from the under floor side in the state before a shaft cover is attached to a shaft.

  Hereinafter, the antitheft structure for a spare tire for a vehicle according to the present invention will be described. In addition, the arrow FR shown appropriately in each figure indicates the vehicle front side, the arrow UP indicates the vehicle upper side, and the arrow LH indicates the vehicle left side in the vehicle width direction. Further, in the following description, when using the front / rear, up / down, and left / right directions, the front / rear direction of the vehicle, the up / down direction of the vehicle up / down direction, and the left / right direction in the traveling direction are indicated.

  As shown in FIG. 1, a rear floor pan 14 as a floor portion is provided on a vehicle lower portion 12 on the vehicle rear side of a vehicle 10 to which the anti-theft structure for a vehicle spare tire according to this embodiment is applied. The rear floor pan 14 constitutes the lower surface of the vehicle 10. The rear floor pan 14 is provided with a spare tire holding portion 16 and a wire hoisting device 18.

  The spare tire holding portion 16 is provided on the vehicle lower side (under the floor side) than the rear floor pan 14 and is connected to the wire hoisting device 18 via a wire 20 passed through the pipe 19. Further, the spare tire holding portion 16 includes a substantially cylindrical guide tube 22 whose longitudinal direction is the vehicle vertical direction. In the present embodiment, the spare tire holding portion 16 is provided on the left side of the vehicle and the wire hoisting device 18 is provided on the right side of the vehicle. However, the present invention is not limited to this, depending on the positional relationship with other peripheral components. The arrangement may be changed as appropriate.

  The guide cylinder 22 is configured to move upward of the vehicle when the wire 20 is wound up and to move downward of the vehicle when the wire 20 is lowered, similarly to a known spare tire carrier or the like. A vehicle spare tire 100 (hereinafter referred to as “spare tire 100” as appropriate) is supported at the lower end of the guide tube 22.

  Here, in the state of FIG. 1, the spare tire 100 is held by the spare tire holding portion 16 and cannot be removed. When the wire 20 is lowered by operating the wire hoisting device 18 described later from this state. The guide tube 22 moves downward in the vehicle. As a result, the spare tire 100 can be removed. When the wire hoisting device 18 is operated and the wire 20 is wound up, the guide tube 22 moves upward in the vehicle. As a result, as shown in FIG. 1, the spare tire 100 is held on the vehicle lower side than the rear floor pan 14, and the spare tire 100 cannot be removed.

  In addition, in this embodiment, although the structure which raises / lowers the guide pipe | tube 22 by winding up or down the wire 20 was employ | adopted, it is not restricted to this, It is the structure by which the spare tire 100 is attached or detached by winding up or down the wire 20. For example, a configuration in which a spare tire cover is provided may be employed.

  A wire hoisting device 18 is provided on the vehicle right side of the spare tire holding unit 16. The wire hoisting device 18 is provided on the vehicle upper side (floor upper side) with respect to the rear floor pan 14 and includes a case 34 including an upper panel 30 and a lower panel 32 as shown in FIG. The case 34 is attached to the rear floor pan 14 via a bracket 36.

  The upper panel 30 is a substantially bottomed cylindrical member that is open on the vehicle lower side, and has an upper side that is smaller in diameter than the lower side and is configured in two upper and lower stages. Further, the lower end portion of the upper panel 30 is bent toward the outer peripheral side to form an upper flange portion 30A. Further, an insertion hole 30B is formed at the center of the upper end portion of the upper panel 30, and a hole edge of the insertion hole 30B is bent upward to serve as a guide for a shaft 38 to be described later. The upper end portion of the shaft 38 is inserted into the insertion hole 30B. In addition, one end of a pipe 19 for passing the wire 20 is connected to the lower stage of the upper panel 30.

  On the other hand, the lower panel 32 is formed in a substantially flat plate shape and is disposed below the upper panel 30. Further, a lower flange portion 32A is provided at the outer peripheral end portion of the lower panel 32, and an upper flange portion 30A is superimposed on the upper surface of the lower flange portion 32A, and a bracket 36 is formed with a weld bolt and a nut (not shown). It is concluded to. Further, the central portion of the lower panel 32 protrudes upward of the vehicle to form an insertion hole 32B. The insertion hole 32B is formed concentrically with the insertion hole 30B, and the edge of the insertion hole 32B is bent upward to serve as a guide for the shaft 38. The lower end portion of the shaft 38 is inserted through the insertion hole 32B.

  The bracket 36 disposed below the lower panel 32 is formed in a substantially flat plate shape, and has the same thickness as the rear floor pan 14 or thicker than the rear floor pan 14. Further, the outer peripheral end portion 36A of the bracket 36 is overlapped on the rear floor pan 14, and is joined to each other by spot welding or the like. Further, an extended portion 36B extends from the opening 14B formed in the rear floor pan 14 toward the shaft 38 side at the inner peripheral end portion of the bracket 36, and the extended portion 36B extends toward the inner peripheral side. It is inclined toward the vehicle lower side. Further, the lower end portion of the extending portion 36B is bent downward, and an opening 36C having a smaller diameter than the opening 14B of the rear floor pan 14 is formed.

  Here, a substantially annular recess 14A is formed in a plan view on the wire hoisting device 18 side of the rear floor pan 14 where it is joined to the bracket 36. And in the site | part in which the recessed part 14A was formed, the closed cross section 42 is comprised by the bracket 36 and the rear floor pan 14. FIG. The closed section 42 is formed over the entire circumference along the outer periphery of the wire hoisting device 18, thereby improving the rigidity of the portion where the wire hoisting device 18 is fixed (fastened).

  Here, a shaft 38 is inserted through the center of the case 34. The shaft 38 is a substantially columnar member whose axial direction is the vehicle vertical direction, and is attached to be rotatable around the axis. Further, an operating tool mounting portion 44 as an upper operating portion having a diameter larger than that of the general portion is formed at the upper end portion of the shaft 38, and an operating tool 106 described later is provided on the upper surface of the operating tool mounting portion 44. A hexagonal hole 44A to be inserted is formed (see FIG. 5).

  A flange portion 38A is extended toward the outer peripheral side at the lower end portion of the operation tool mounting portion 44, and the flange portion 38A is locked to the upper panel 30 so that the shaft 38 cannot be pulled out. Further, the lower end portion of the shaft 38 extends to the vehicle lower side than the opening 14B of the rear floor pan 14, and is positioned on the vehicle upper side of the opening 36C of the bracket 36. Here, a shaft pin 38 </ b> B as a lower operation portion protrudes from the outer peripheral surface of the lower end portion of the shaft 38. The shaft pins 38B protrude in a direction perpendicular to the axial direction of the shaft 38, and a pair of shaft pins 38B are provided in opposite directions around the axis (see FIG. 6). In the state after the vehicle 10 is assembled at a vehicle assembly factory or the like, a shaft cover 50 described later is attached to the lower end portion of the shaft 38 (see FIG. 4).

  A wire wheel 40 is attached to the outer peripheral surface of the central portion of the shaft 38 in the vehicle vertical direction. The wire wheel 40 is formed in a substantially disk shape, is disposed in the case 34, and rotates together with the shaft 38. Moreover, the center part of the wire wheel 40 protrudes below, and the wire 20 is wound around the outer peripheral side from this protrusion part. For this reason, the wire 20 can be wound up or down by rotating the wire wheel 40. The wire hoisting device 18 is provided with a lock mechanism (not shown) and is locked so that the wire wheel 40 does not rotate when the wire 20 is pulled.

  Here, after the spare tire 100 is assembled at a vehicle assembly plant or the like, the shaft cover 50 is attached to the lower end portion in the axial direction of the shaft 38 as shown in FIG. As shown in FIG. 3, the shaft cover 50 is a substantially columnar resin member and includes a substantially cylindrical outer wall 52. The outer wall 52 is formed with an opening 52A for die cutting, and a pair of left and right flat inner walls 54 are provided on the inner side of the outer wall 52.

  The pair of inner walls 54 are formed substantially parallel to each other, and ribs 54A are formed on the surfaces of the inner walls 54 facing each other. The ribs 54A are formed on both sides of the central portion of the inner wall 54, and in the present embodiment, four ribs 54A are formed. Each rib 54A is substantially triangular in plan view.

  Here, fitting claws 56 are formed in the vicinity of the four ribs 54A. The fitting claws 56 are formed so as to protrude from the inner wall 54 in directions opposite to each other, and the front end side is bent downward. Moreover, 56 A of front-end | tip parts of the fitting nail | claw 56 are formed in thickness, and it is comprised so that the fitting state with the shaft pin 38B mentioned later can be maintained favorable.

  A supporting piece 58 is formed below the fitting claw 56 so as to be bridged between the inner walls 54, and the supporting piece 58 and the fitting claw 56 are leg portions suspended from the fitting claw 56. It is connected with 56B. Further, a concave portion 58A that is curved downward in a substantially arc shape is formed at the center portion of the support piece 58, and the concave portion 58A is formed in a shape corresponding to the shaft pin 38B.

  Here, as shown in FIG. 4, the cap 50 is pushed into the shaft 38 from below the floor. Specifically, by fitting the fitting claw 56 of the cap 50 into the shaft pin 38 </ b> B of the shaft 38, the cap 50. Can be easily attached. Further, in a state where the shaft cover 50 is attached to the lower end portion of the shaft 38, the shaft pin 38B is fitted by the recess 58A and the fitting claw 56 and cannot be removed. Furthermore, the extending part 36B of the bracket 36 extends from the rear floor pan 14 toward the position close to the shaft cover 50, and is configured to inhibit access to the shaft cover 50 from the vehicle lower side. Note that the close position here is a concept that widely includes positions close enough to make it difficult to insert a hand, a tool, or the like from the gap between the shaft cover 50 and the extending portion 36B.

  In the present embodiment, the shaft cover 38B is fitted by the recess 58A and the four fitting claws 56 to make it impossible to remove the shaft cover 50. However, the number of the fitting claws 56 is not limited to three. The number may be as follows, or may be five or more. Moreover, if it is the structure which engages or fixes the shaft cover 50 to the shaft pin 38B, and cannot be removed, it is not restricted to the structure provided with the fitting nail | claw 56. FIG. For example, a configuration may be adopted in which the shaft cover 50 is fixed to the shaft 38 and the shaft pin 38B with an adhesive or the like so as not to be removed. Further, a configuration in which a part of the shaft cover 50 is caulked and fixed (engaged) may be employed.

(Action and effect)
Next, a vehicle according to the present embodiment will be described while explaining a procedure for assembling the spare tire 100 in a vehicle assembly factory or the like, and a procedure for an occupant to remove the spare tire 100 during normal use such as when the tire is punctured. The operation and effect of the anti-theft structure for spare tires will be described.

  First, a procedure for assembling the spare tire 100 in a vehicle assembly factory or the like will be described. In a state before the spare tire 100 is assembled, as shown in FIG. 2, the shaft cover 50 is not attached to the lower end portion of the shaft 38, and the shaft 38 can be rotated from below the floor. Has been.

  Here, when the spare tire 100 is assembled, the shaft 38 is rotated to lower the guide cylinder 22 of the spare tire holding portion 16 (see FIG. 1). At this time, as shown in FIG. 6, the tool 102 is inserted into the opening 36 </ b> C of the bracket 36 from below the floor, and the shaft 38 is rotated by operating the tool 102.

  The tool 102 is configured by forming a substantially cylindrical connecting portion 104 at the tip of a handle, and an insertion hole 104 </ b> A into which the shaft 38 is inserted is formed on the upper surface of the connecting portion 104. Further, a pair of cutout portions 104B communicating with the insertion hole 104A is formed on the outer peripheral surface of the connecting portion 104, and the cutout portions 104B are formed at positions corresponding to the shaft pins 38B.

  When the shaft 38 is rotated by the tool 102, the insertion hole 104A is inserted into the lower end portion of the shaft 38 with the notch 104B aligned with the position of the shaft pin 38B. As a result, the shaft pin 38B enters the notch 104B. Then, by rotating the tool 102 in this state, the shaft 38 is rotated, the wire 20 is wound down, and the guide tube 22 can be lowered.

  Subsequently, the spare tire 100 is attached. Then, by rotating the shaft 38 counterclockwise with the tool 102 and winding the wire 20, the guide cylinder 22 is raised, and the spare tire 100 is held below the rear floor pan 14 in the vehicle. In this way, by rotating the shaft 38 from the lower floor side, it is not necessary to operate the shaft 38 from the upper floor side, and the assemblability can be maintained well. The tool 102 may be a tool having another shape as long as it can rotate the shaft 38 by engaging with the shaft pin 38B.

  After the spare tire 100 is assembled, the tool 102 is removed, and the shaft cover 50 is attached to the lower end portion of the shaft 38, resulting in the state shown in FIG. In this state, since the plurality of fitting claws 56 are fitted to the shaft pin 38B, it is possible to prevent the shaft 38 from being operated from below the floor by the tool 102.

  Further, the tip portions 56A of the fitting claws 56 are in contact with the upper portions of the shaft pins 38B, respectively, so that the shaft cover 50 cannot be removed. For this reason, the shaft cover 50 cannot be removed unless the shaft cover 50 is forcibly pulled out to the vehicle lower side with a strong force that destroys at least a part of the plurality of fitting claws 56.

  Furthermore, since the extending part 36B of the bracket 36 extends to a position close to the shaft cover 50, it is possible to prevent the shaft cover 50 from being gripped by inserting a hand or a tool from the opening 36C of the bracket 36. . That is, it is possible to effectively suppress the shaft cover 50 from being removed. In particular, by making the outer wall 52 of the shaft cover 50 substantially cylindrical as in this embodiment, the outer wall 52 can be made harder to grip than when a shaft cover having a polygonal outer wall is used.

  Further, since the outer wall 52 of the shaft cover 50 is covered by the extending portion 36B, even when the lower surface of the vehicle 10 is looked into from below the floor, the shaft 38 cannot be seen at first glance, and the spare tire 100 Can be prevented from being stolen.

  Next, a procedure when the occupant removes the spare tire 100 during normal use such as when the tire is punctured will be described. When the occupant removes the spare tire 100, as shown in FIG. 5, the operation tool 106 is attached to the upper end of the shaft 38 of the wire hoisting device 18 from the upper side of the floor. Here, a cylinder part 110 released downward is formed at the lower part of the operation tool 106, and the cylinder part 110 is attached so as to cover the upper end part of the shaft 38. Here, a hexagonal protrusion 110 </ b> A is provided on the inner side of the cylindrical portion 110, and the protrusion 110 </ b> A is inserted into a hexagonal hole 44 </ b> A formed at the upper end of the shaft 38, so that the operation tool 106 and the shaft 38 are connected. Connected.

  Subsequently, a handle 108 having a lower end folded back in a substantially J shape is prepared, and the lower end of the handle 108 is inserted into an insertion hole 106 </ b> A formed in the upper part of the operation tool 106. Then, by rotating the handle 108 in the direction of the arrow in the figure, the shaft 38 is rotated via the operation tool 106 and the wire 20 is lowered. Thereby, the spare tire 100 arrange | positioned under the floor can be lowered | hung. Thereafter, the occupant removes the spare tire 100 and rotates the handle 108 in the direction opposite to the arrow in the drawing, whereby the wire 20 can be wound up. Note that a punctured tire may be attached to the spare tire holding portion 16 before winding the wire 20.

  As described above, during normal use, the occupant operates the shaft 38 from above the floor to attach and detach the spare tire 100, so that the wire hoisting device 18 is inadvertently installed from the outside of the passenger compartment. It is possible to prevent the operation.

  In addition, about the connection structure of the shaft 38 and the operation tool 106, you may apply not only the structure illustrated in FIG. 5 but another structure. For example, a tool such as a hexagon wrench may be used instead of the operation tool 106. In addition, instead of the hexagonal hole 44A, a substantially rectangular square hole (square hole) in a plan view or a triangular triangle hole in a plan view may be formed in the upper end portion of the shaft 38. In this case, the shape of the operating tool may be changed according to the shape of the hole.

  As described above, the anti-theft structure for a spare tire for a vehicle according to an embodiment of the present invention has been described, but it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention. For example, in the present embodiment, the wire hoisting device 18 is attached to the rear floor pan 14 via the bracket 36, but the present invention is not limited thereto, and the wire hoisting device 18 may be directly attached to the rear floor pan 14. In this case, for example, an extension portion may be formed by attaching a cover plate or the like to the lower surface of the rear floor pan 14 and extending the cover plate toward the shaft cover 50. Further, the extension portion may be formed by extending the rear floor pan 14 itself toward the shaft cover 50.

10 Vehicle 14 Rear floor pan (floor)
16 Spare tire holding portion 18 Wire hoisting device 20 Wire 36 Bracket 36B Extension portion 38 Shaft 38B Shaft pin (lower operation portion)
44 Operating tool mounting part (upper operating part)
50 Shaft cover 100 Vehicle spare tire

Claims (4)

A spare tire holding portion that is provided so as to be movable in the vehicle vertical direction on the vehicle lower side than the vehicle floor, and holds a vehicle spare tire;
A wire hoisting device provided on the vehicle upper side than the floor portion and connected to the spare tire holding portion via a wire;
The wire hoisting device is provided with the vehicle vertical direction as the axial direction, and includes an upper operation portion operated from the upper end side in the axial direction and a lower operation portion operated from the lower end side in the axial direction, and rotated around the axis. A shaft for winding or unwinding the wire,
A shaft cover that is attached to the lower end portion in the axial direction of the shaft and disables the lower operation portion;
An extension portion extending from the floor portion toward the proximity position of the shaft cover and hindering access to the shaft cover from the vehicle lower side;
Anti-theft structure for spare tires for vehicles. The lower operation part is a shaft pin protruding from the outer peripheral surface of the shaft,
The anti-theft structure for a spare tire for a vehicle according to claim 1, wherein the shaft cover is engaged with or fixed to the shaft pin and cannot be removed.   The anti-theft structure for a spare tire for a vehicle according to claim 2, wherein the shaft cover includes a fitting claw that is fitted to the shaft pin in a state where the shaft cover is attached to the shaft. The extension part is provided on a bracket fixed to the floor part,
4. The vehicle according to claim 1, wherein the wire hoisting device is attached to the floor portion via the bracket, and a closed cross-section is configured by the bracket and the floor portion. Spare tire anti-theft structure.

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