JP5614776B2 - Spare tire carrier and clamp - Google Patents

Description

  The present invention relates to a spare tire carrier for holding a spare tire and storing it under the floor of an automobile body, and a clamp that constitutes means for preventing the spare tire carrier from falling off.

  2. Description of the Related Art Conventionally, automobiles are equipped with spare tires for exchanging punctured tires in case of sudden punctures. Among the vehicles equipped with such spare tires, so-called commercial vehicles mainly for carrying luggage are known in which spare tires are stored under the floor at the rear of the vehicle body in order to secure a large cargo space inside the vehicle. ing. 7 is a side view of the underfloor U at the rear of the vehicle body as viewed from the left, and FIG. 8 is an exploded view of the support structure of the spare tire carrier 101 for storing the spare tire S. As shown in FIG. 7, a spare tire carrier 101 holding a spare tire S is installed under the floor U at the rear of the vehicle body. A circle RW shown in FIG. 7 is the position of the left and right rear wheels. Spare tire carrier 101 is supported at two locations on the front and rear of floor B of the vehicle body. The spare tire carrier 101 is rotatably supported by a bracket 112 at a front portion 111a, and is supported by a support structure 113 including a hook 102 at a rear portion. As shown in FIGS. 7 and 8, the support structure 113 for supporting the carrier body 110 on the rear side includes a hook 102 for hooking the hook portion 111b of the carrier body 110, and a through hole provided in the floor B of the vehicle body. A bolt 103 that is hooked to the hook 102 and a metal-made cylindrical spacer 104 that is slidably inserted into the bolt 103 above the hook 102. In addition, as a support structure provided with the bolt 103 and the hook 102, for example, there is one disclosed in Patent Document 1 below. As shown in FIG. 7, the bolt 103 includes a head portion 131 that performs a rotation operation and a shaft portion 132 having a male screw portion 132b. The head portion 131 is a vehicle body so that the bolt 103 can be rotated only in the cargo compartment of the automobile. In the cargo compartment.

  By the way, since the height from the road surface R to the floor B of the vehicle body varies depending on the vehicle type, there is a demand for changing the height of the spare tire carrier 101 when storing the spare tire S depending on the vehicle type. However, there is a demand to use the hook 102 for hooking the spare tire carrier 101 as a common part regardless of the vehicle type. The spacer 104 is configured as a replacement part that can be replaced with the bolt 103 in order to satisfy these requirements. That is, the spacer 104 can be selected as a different length depending on the vehicle type, and is configured as a replacement part that can be slidably inserted into the bolt 103. Thereby, the distance from the floor B of the vehicle body to the hook 102 can be changed by the spacer 104 according to the vehicle type. Further, when storing the spare tire S, the spare tire S is stored at a predetermined height by turning the bolt 103 and screwing the hook 102 to the limit. Further, since the spacer 104 is slidably inserted into the bolt 103, the spacer 104 and the head of the bolt 103 can firmly hold the floor B of the vehicle body by metal touch by screwing the hook 102 to the limit. Thus, rattling of the support structure 113 with respect to the vehicle body can be prevented.

JP 2006008125 A

  However, the above technique has the following problems. When taking out the spare tire S stored under the floor U of the vehicle body, the operator first lowers the hook 102 screwed to the bolt 103 to an appropriate position by rotating the head 131 of the bolt 103 in the cargo compartment. . At this time, in a work environment where it is difficult to check the height of the hook 102 such as on a night road without a light, the operator turns the bolt 103 too much and the spacer 104 spontaneously falls from the bolt together with the hook 102 and the spacer 104 is lost. There was a problem that there was something.

  The present invention has been made in view of the above points, and in order to remove the spare tire carrier holding the spare tire from the hook of the support structure, the head of the bolt is turned and screwed with the male screw portion of the bolt. When lowering the hook, it is an object to prevent the spacer inserted through the bolt from dropping from the bolt even when the bolt is turned too much and the hook falls off the bolt.

  In order to solve the above problems, the spare tire carrier according to the present invention takes the following means. First, in the spare tire carrier according to the first aspect of the present invention, one end side of a carrier body that is disposed so that a spare tire can be placed under the floor at the rear of a vehicle body is rotatably supported by the vehicle body, and the other end The side is supported by the vehicle body by a carrier support portion configured as a rod-shaped assembly, and the spare tire is stored under the floor by operating the carrier support portion and the spare tire can be taken out of the vehicle body. A spare tire carrier capable of switching the rotational position of the carrier body to a possible state, wherein the carrier support portion is a long bolt that is suspended from a floor surface of a vehicle body so that a shaft portion is rotatable. , A hook having a portion that can be screwed into a tip portion of the shaft portion of the bolt and hooked on the other end of the carrier body, And a spacer for screwing and positioning a hook that is threaded into the shaft portion of the bolt and is inserted between the shaft portion of the bolt and the spacer that is inserted into the shaft portion. Further, a drop-off preventing means is provided for preventing the spacer from spontaneously falling from the bolt shaft even when the hook is not screwed into the bolt shaft.

  According to the spare tire carrier according to the first aspect of the present invention, even if the hook screwed with the bolt falls off from the bolt, the state where the spacer is inserted into the bolt by the drop-off preventing means is maintained. Therefore, the spacer does not fall off from the bolt.

  A spare tire carrier according to a second aspect of the present invention is the spare tire carrier according to claim 1, wherein the drop prevention means provided between the shaft portion of the bolt and the spacer includes the shaft portion of the bolt. A step portion having a small diameter on the base side compared to the tip side is formed, and a spacer has a through hole communicating with the inside and outside of the cylindrical shape, and a clamp having a fitting portion that fits inwardly from the through hole The clamp is attached to the outer peripheral surface of the spacer, and the clamp insertion portion is formed with a gripping portion that is engaged with the step portion of the shaft portion of the bolt. The spacer is prevented from falling by the locking of the bolt to the stepped portion.

  According to the spare tire carrier according to the second invention, the spacer has a cylindrical through hole that communicates with the inside and outside of the spacer, and a clamp having a fitting portion that fits inwardly from the through hole is attached to the outer circumferential surface of the spacer. Therefore, the relative movement of the spacer and the clamp in the axial direction is restricted. In addition, a step portion is formed in which the shaft portion of the bolt has a smaller diameter on the base side compared to the tip side, and a grip portion that is locked to the step portion of the shaft portion of the bolt is formed in the insertion portion of the clamp. Thus, the clamp holding portion is locked to the stepped portion of the shaft portion of the bolt, and the clamp that holds the base side of the bolt does not fall off in the direction of the tip of the bolt. Therefore, it can be realized with a simple structure to prevent the spacer from falling off.

  A clamp according to a third aspect of the present invention is a clamp constituting the spare tire carrier drop-off prevention means according to claim 2, wherein the clamp is made of resin and grips the outer peripheral surface of the spacer. The arc-shaped member divided into two is configured to be connected to be rotatable by a hinge portion, and both ends of the arc-shaped member divided into two can maintain the mounting state of the arc-shaped member to the spacer. It is configured to be engaged by the engaging means, and the arcuate member is integrally formed with an insertion portion having a grip portion at the tip thereof that fits into a through hole formed in the spacer. To do.

  According to the clamp according to the third aspect of the invention, the clamp grips the outer peripheral surface of the spacer by connecting the two arcuate members so as to be rotatable by the hinge portion and engaging the other ends by the engaging means. doing. Therefore, in order to prevent the spacer from falling off, an inexpensive configuration can be achieved as a separate part.

  A clamp according to a fourth aspect of the present invention is the clamp according to claim 3, wherein two insertion portions to be inserted into the through holes of the spacer are formed vertically in the axial direction, and the through holes are formed. It is configured to be fitted and locked to the upper end and the lower end of the bolt, and the grip portion locked to the stepped portion of the bolt is configured to protrude obliquely downward from the fitting portion at the upper position, Thus, when the spacer is inserted into the shaft portion of the bolt from the tip portion in a state where the clamp is attached to the spacer, the gripping portion is bent and can be inserted.

  According to the clamp of the fourth aspect of the invention, the gripping portion is formed to project obliquely downward from the fitting portion at the upper position, and the spacer is inserted from the tip portion into the shaft portion of the bolt in a mounted state on the spacer of the clamp. Sometimes the gripping part is bent and can be inserted, so that the spacer can be easily inserted with the clamp attached.

According to the first invention, in order to remove the carrier holding the spare tire from the hook of the support structure, the head of the bolt is turned to lower the hook that is screwed with the male screw portion formed on the shaft portion of the bolt. Even when the head of the bolt is turned too much and the hook is dropped from the shaft portion of the bolt, the spacer can be prevented from dropping from the shaft portion of the bolt.
Further, according to the second invention, it is possible to realize a simple structure in preventing the spacer from falling off.
In addition, according to the third aspect of the invention, it is possible to provide an inexpensive configuration as a separate part in preventing the spacer from falling off.
According to the fourth invention, the spacer can be easily inserted with the clamp attached.

The side view which looked at the back lower part of the body of a car from the left. The side view which shows the latching support part of a spare-tire carrier. The side view which shows the state which loosened the volt | bolt of the latching support part of FIG. 2, and lowered | hung the hook. The top view which shows a clamp. The figure which expands and shows the clamp vicinity of FIG. Sectional drawing which cut | disconnects and shows the latching support part of the state of FIG. 3 on the VI-VI surface. The side view which shows the conventional spare tire carrier. The side view which decomposes | disassembles and shows the conventional support structure.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated, referring drawings. FIG. 1 is a side view of an underfloor U at the rear of a vehicle body as viewed from the left. The automobile shown in FIG. 1 is a so-called commercial vehicle having a large cargo space. This automobile is equipped with a spare tire S for emergency replacement of the punctured tire in case the tire suddenly punctures. In this automobile, a spare tire carrier 1 for storing a spare tire S is installed under the floor U of the vehicle body as the outside of the vehicle body. By storing the spare tire S in the spare tire carrier 1, the spare tire S is mounted. A symbol RW shown in the figure virtually represents the positions of the left and right rear wheels of the automobile. Although not shown, the spare tire carrier 1 is disposed between the left and right rear wheels RW.

  As shown in FIG. 1, the spare tire carrier 1 includes a carrier body 10 and a locking support portion 13. As shown in FIG. 1, the carrier body 10 holds the spare tire S and stores it in the underfloor U of the vehicle body (P1), and the carrier body 10 is lowered until it contacts the road surface R so that the spare tire S can be taken out. A take-out state (P2) is provided, and switching between these two states is possible. The carrier body 10 includes a carrier part 11 and a rotation support bracket 12. The carrier part 11 is formed in a shape capable of storing the spare tire S by appropriately bending a long metal hollow pipe-shaped member. The rotation support portion 11 a that is the front end as one end side of the carrier portion is a portion that is rotatably supported by the rotation support bracket 12. Moreover, the hook part 11b which becomes the rear end as the other end side of the carrier part 11 is a part hooked on the hook 2 of the locking support part 13 described later. The rotation support bracket 12 is fixedly installed on the floor of the vehicle body. The rotation support bracket 12 is rotatably connected to the rotation support portion 11a of the carrier portion 11 so that the carrier portion 11 is rotatably supported. In this manner, the carrier body 10 is supported by the rotation support bracket 12 so as to be rotatable with respect to the vehicle body. Thus, the carrier body 10 has a storage state P1 in which the spare tire S is stored and a take-out state P2 in which the spare tire S can be taken out depending on the rotational position with respect to the vehicle body. It is possible to switch between the state P2.

  FIG. 1 is a side view showing a locking support portion 13 that supports the spare tire carrier 1. In the above-described storage state of the carrier body 10, a locking support portion 13 as a carrier support portion configured as a rod-shaped assembly supports the carrier body 10. The locking support portion 13 includes a hook 2 that hooks the carrier body 10, a bolt 3 that is screwed with the hook 2, a spacer 4 that is inserted through the bolt 3, and a clamp 5 that serves as a drop-off prevention unit that prevents the spacer 4 from falling off. With. As shown in FIG. 2, the locking support portion 13 tightens the bolt 3 to raise the hook 2, and then loosens the bolt 3 as shown in FIG. The hook 2 is lowered, and the carrier main body 10 caught on the hook 2 is removed, and the carrier main body 10 can be taken out and in a loosened state. The clamp structure referred to in the present invention is a structure in which the spacer 4 is held by the clamp 5 so as not to fall off the bolt 3 even when the bolt 3 is further loosened from the loosened state and the hook 2 is dropped from the bolt 3. It is. Hereinafter, the hook 2, the bolt 3, the spacer 4, and the clamp 5 will be described in order.

  The hook 2 is a metal member, and includes an internal thread portion 21 that is screwed with the bolt 3 at an upper portion, and a flange portion 22 as a portion that hooks the hook portion 11b of the carrier body 10 at the lower portion. The female screw portion 21 is formed in a cylindrical shape having a female screw formed on the inner surface, and the flange portion 22 is formed by bending a belt-like member into a substantially J shape. In addition, between the internal thread part 21 and the collar part 22, it is the cylinder shape which can insert the external thread part 32b of the volt | bolt 3, and the external thread part 32b of the volt | bolt 3 can be screwed over the internal thread part 21. FIG.

  Next, the bolt 3 is a long metal member and includes a head portion 31 and a shaft portion 32. The bolt 3 has a head portion 31 in the cargo compartment of the vehicle body, that is, on the floor surface B of the vehicle body, and a shaft portion 32 is suspended from the floor U through a hole penetrating the floor surface B. The head 31 is formed in a hexagonal column shape, and can be rotated from the cargo compartment using a wheel wrench. The shaft portion 32 is formed in a rod shape, and extends downward from the head portion 31 with the head portion 31 and the axis line. The upper part which becomes the base side of the shaft part 32 is a gripped part 32a having a smooth cylindrical surface, and is a part to be gripped by gripping parts 55 and 55 of the clamp 5 which will be described later. Moreover, the lower part which becomes the front end side of the axial part 32 becomes the external thread part 32b in which the external thread in which the internal thread part 21 of the hook 2 is screwed was formed. By rotating the head portion 31 of the bolt 3, the hook 2 screwed with the male screw portion 32b can be moved up and down, thereby switching between the tightened state and the loosened state. The diameter of the male screw portion 32b is larger than the diameter of the gripped portion 32a. Due to the difference in diameter, a stepped portion 32c is formed at the boundary between the male screw portion 32b and the gripped portion 32a. That is, the step portion 32c is formed at the upper end of the male screw portion 32b.

  Next, the spacer 4 is a metal cylindrical member formed so as to be inserted into the bolt 3. The spacer 4 is inserted through the bolt 3 between the floor B of the vehicle body and the hook 2. As shown in FIG. 2, when the locking support portion 13 is in the tightened state, the upper end of the spacer 4 is in contact with the floor B of the vehicle body, and the lower end of the spacer 4 is in contact with the hook 2. By this contact, a space from the floor B of the vehicle body to the hook 2 is secured. The spacer 4 is a replacement part that can be selected depending on the vehicle type and can be replaced with the bolt 3. Therefore, by using the hook 2 as a common component, the distance from the floor B of the vehicle body to the hook 2 in the tightened state can be changed according to the vehicle type by the spacer 4 by replacing the spacer 4. As shown in FIG. 4, through holes 41, 41 are formed in two positions symmetrical with respect to the axis of the spacer 4 on the side surface of the spacer 4. Insertion portions 54 and 54 (see FIG. 6) provided in the clamp 5 described later are inserted into the through holes 41 and 41, and gripping portions 55 and 55 are inserted from the outside. When the locking support portion 13 is in the loosened state shown in FIG. 3, the spacer 4 is slightly dropped, but is clamped by the clamp 5 described later so that the spacer 4 does not naturally fall below the stepped portion 32 c on the bolt 3. Therefore, the upper end of the spacer 4 is separated from the floor B of the vehicle body, and the lower end of the spacer 4 is separated from the hook 2.

  Next, the clamp 5 is a resin member provided to be detachably held on the outer peripheral surface of the spacer 4. The clamp 5 is configured as a drop prevention means for holding the spacer inserted into the bolt even when the hook is dropped from the shaft portion of the bolt. The clamp 5 has a generally cylindrical shape in the closed state. As shown in FIG. 4, the clamp 5 includes two arcuate members 51 and 52 having a generally semicircular arc shape. One end of each arcuate member 51, 52 is connected by a hinge portion 53, and the clamp 5 is configured to be openable and closable with the hinge portion 53 as a fulcrum. In FIG. 4, one arcuate member 51 in an open state is indicated by a two-dot chain line. The engaging means includes an engaging claw 51a and an engaging portion 52a as follows. An engaging claw 51a is provided at the other end of one arcuate member 51, and an engaging part 52a for receiving and engaging the engaging claw 51a is provided at the other end of the other arcuate member 52. . When both the arc-shaped members 51 and 52 are closed and the engaging claw 51a is engaged with the engaging portion 52a, the clamp 5 is locked in the closed state.

  Hereinafter, the clamp 5 locked in the closed state will be described with reference to FIGS. Insertion portions 54, 54 are provided so as to protrude inwardly at the inner side of the approximate center of the respective arc-shaped members 51, 52. As shown in FIG. 4, the fitting portions 54, 54 are formed at two locations that are symmetric with respect to the axis of the clamp 5. Moreover, the insertion parts 54 and 54 are formed in the shape which can be inserted in the through-holes 41 and 41 of the spacer 4, as shown in FIG. By inserting the insertion portions 54 and 54 into the through holes 41 and 41, the relative movement in the axial direction and the circumferential direction between the clamp 5 and the spacer 4 is restricted, and the clamp 5 and the spacer 4 are in an integrated mounting state. . As will be described later, when the spacer 4 and the clamp 5 are inserted into the bolt 3, the spacer 4 and the clamp 5 are set in the above-mentioned mounting state in advance, and the spacer 4 and the clamp 5 in this mounting state are set in advance. The shaft 3 of the bolt 3 is inserted from below.

  As shown in FIG. 6, the pair of fitting portions 54, 54 that fit into the through hole 41 are divided into two upper and lower portions, and are fitted and locked to the upper end and the lower end of the through hole 41. That is, the upper end of each insertion part 54 and 54 becomes mounting surface 54a, 54a. The upper inner peripheral surfaces 41a and 41a of the through holes 41 and 41 of the spacer 4 are placed on the placement surfaces 54a and 54a in the loosened state, and the natural fall of the spacer 4 with respect to the clamp 5 is restricted. Moreover, the lower end of each insertion part 54 and 54 is the locking surfaces 54b and 54b. When the clamp 5 and the spacer 4 are inserted from below into the shaft portion 32 of the bolt 3 with the clamp 5 and the spacer 4 mounted, the locking surfaces 54b and 54b are hooked on the lower inner peripheral surfaces 41b and 41b of the through holes 41 and 41 of the spacer 4, The clamp 5 can be pulled up together with the spacer 4.

  Each arcuate member 51, 52 is provided with a gripping portion 55, 55 integrally protruding from the upper part of the fitting portion 54, 54. That is, the gripping portions 55 and 55 are provided so as to protrude inwardly at the substantially center inside of the respective arc-shaped members 51 and 52. In addition, the gripping portions 55 and 55 are formed at two locations that are symmetric with respect to the axis of the clamp 5. As shown in the sectional view of FIG. 6, in a state where the clamp 5 is attached to the spacer 4, the gripping portions 55 and 55 are inserted through the through holes 41 and 41 until they reach the inside of the spacer 4. The tips of the gripping portions 55 and 55 inserted through the through holes 41 and 41 of the spacer 4 grip the gripped portion 32 a of the shaft portion 32 of the bolt 3 inserted through the spacer 4. Therefore, the distance between the tips of the gripping portions 55, 55 is set to be the same as the diameter of the gripped portion 32 a of the bolt 3. As shown in FIG. 4, the tips of the gripping portions 55, 55 are formed in an arc shape in top view according to the shape of the gripped portion 32 a, and the shaft portion 32 of the bolt 3 is not eccentric with respect to the clamp 5. Thus, the gripped portion 32a is gripped.

  Further, as shown in FIG. 6, the gripping portions 55 and 55 protrude obliquely downward. The gripping portions 55 and 55 have flexibility, and can be bent so as to escape into the outer escape spaces E and E when receiving a force from the upper side. That is, the distance between the tips of the gripping portions 55 and 55 is equal to the diameter of the gripped portion 32a of the bolt 3 in the natural state, but is wider than that when receiving a force from above. Therefore, when the clamp 5 and the spacer 4 in the mounted state are inserted through the shaft portion 32 of the bolt 3 from below, the gripping portions 55 and 55 are first subjected to force from the upper side by the male screw portion 32b having a larger diameter than the gripping portion, and escape space. It is bent to E and E. For this reason, the space | interval of the front-end | tips of both the holding parts 55 and 55 spreads rather than a free state, and it can hold | grip the external thread part 32b whose diameter is larger than the to-be-gripped part 32a. Accordingly, the spacer 4 and the clamp 5 in the mounted state can be inserted into the shaft portion 32 until the gripping portions 55 and 55 shown in FIG. 3 are gripped by the gripped portion 32a.

  However, in a state where the gripping portions 55 and 55 are gripping the gripped portion 32 a of the bolt 3, the gripping portions 55 and 55 cannot bend even if a force is applied from below. Therefore, when the bolt 3 is rotated from the tightened state shown in FIG. 2 and the hook 2 is lowered, the spacer 4 and the clamp 5 in the mounted state are lowered to the loosened state shown in FIG. Even when the clamp 5 is lowered, the gripping portions 55 and 55 of the clamp 5 are engaged with the stepped portion 32c of the bolt 3 and receive a force from below, so that the spacer 4 and the clamp 5 in the mounted state cannot be lowered. As a result, even when the bolt 3 is turned too much and the hook 2 is completely removed from the male threaded portion 32b, the spacer 4 and the clamp 5 in the mounted state do not fall naturally but remain inserted through the bolt 3.

  Hereinafter, a method for assembling the locking support portion 13 will be described. First, the shaft portion 32 of the bolt 3 is inserted into the hole provided in the underfloor U of the vehicle body, and the shaft portion 32 is suspended from the underfloor U while leaving the head portion 31 in the load chamber. Next, the clamp 5 is attached to the spacer 4. The fitting portions 54 and 54 of the clamp 5 are fitted into the through holes 41 and 41 provided on the side surfaces of the spacer 4 to close both arc-shaped members 51 and 52, and the engaging claws 51 a are engaged with the engaging portions 52 a and clamped. Lock with 5 closed. As a result, the relative movement of the spacer 4 and the clamp 5 is restricted, and the spacer 4 and the clamp 5 are in an integrated mounting state. Next, the spacer 4 and the clamp 5 that are in the mounted state are inserted from below into the shaft portion 32 of the bolt 3 suspended under the floor U of the vehicle body. At this time, the gripping portions 55 and 55 protruding inside the clamp 5 are inserted so as to be directed obliquely downward. At the stage where the gripping portion passes while gripping the male screw portion 32b of the bolt 3, the gripping portions 55, 55 are bent outward by the male screw portion 32b. When the gripping portions 55, 55 finish passing through the male threaded portion 32b, the gripping portions 55, 55 return to their original state, and the gripping portions 55, 55 grip the gripped portion 32a. Thus, when the bending of the gripping portions 55, 55 is restored, the gripping portions 55, 55 are locked to the stepped portion 32c formed between the gripped portion 32a of the bolt and the male screw portion 32b. The spacer 4 and the clamp 5 in the mounted state do not fall off from the shaft portion 32 of the bolt 3. Finally, the female thread portion of the hook 2 is screwed into the male thread portion 32b of the bolt. The locking support portion 13 is assembled as described above.

  Following this state, a method for storing the spare tire S will be described. As shown by a two-dot chain line in FIG. 1, the spare tire S is held on the carrier portion 11 of the carrier body 10 (P2), and the hook portion 11b of the carrier portion 11 is hooked on the hook 2 of the locking support portion 13. Thereby, the latching support part 13 will be in the state shown in FIG. Next, the head 31 of the bolt 3 of the locking support portion 13 is rotated to raise the hook 2 screwed with the male screw portion 32b. When the bolt 3 is rotated until the upper end and the lower end of the spacer are in contact with the floor B of the vehicle body and the upper end of the hook 2, respectively, the locking support portion 13 is in the tightened state shown in FIG. The storage state is indicated by P1. As a result, the spare tire is stored under the floor U of the vehicle body. The spare tire S can be taken out by reversing the storage method.

  According to the spare tire carrier 1 demonstrated above, there can exist the following effects. The spare tire carrier 1 includes a carrier body 10, a hook 2 that hooks the carrier body 10, a bolt 3 that is screwed to the hook 2, a spacer 4 that is inserted through the bolt 3, and a drop-off preventing means that prevents the spacer 4 from dropping off. As a clamp 5. When the carrier body 10 is removed from the hook 2 in order to take out the spare tire S, the spacer 4 is bolted by the clamp 5 even if the bolt 2 is turned too much and the hook 2 screwed with the bolt 3 falls off the bolt 3. The state inserted through 3 is maintained. That is, the gripping portions 55 and 55 of the clamp 5 project obliquely downward toward the shaft portion 32 of the bolt 3 and are locked to a step portion 32 c formed at the upper end of the male screw portion 32 b of the bolt 3. The upper inner peripheral surface 41a of the through hole 41 formed on the side surface of the cylindrical spacer 4 is mounted on the mounting surfaces 54a and 54a of the clamp 5, and the spacer 4 is moved upward by the mounting surfaces 54a and 54a. Supported by direction. Therefore, even when the hook 2 is detached from the shaft portion 32 of the bolt 3, the spacer 4 is not detached from the bolt 3.

  In addition, the spare tire carrier 1 which concerns on this invention is not limited to said embodiment, It can implement with other various forms. The spare tire carrier described above is provided at two places where the grip portions 55 of the clamp 5 are symmetrical with respect to the axis of the clamp 5. However, the present invention is not limited to this, and the position and number of the gripping portions can be changed as appropriate. The spare tire carrier has through holes 41 and 41 formed on the side surfaces of the spacer, and the mounting surfaces 54a and 54a of the clamp 5 are mounted on the upper inner peripheral surfaces 41a and 41a of the through holes 41 and 41. Met. However, instead of the configuration of the through holes 41, 41, a configuration of a slit extending upward from the lower end of the spacer 4 may be used. Even with such a slit configuration, the upper inner peripheral surface of the slit can be placed on the placement surfaces 54 a and 54 a of the clamp 5, as with the through holes 41 and 41.

DESCRIPTION OF SYMBOLS 1 Spare tire carrier 10 Carrier main body 11 Carrier part 11a Rotation support part 11b Hook part 12 Rotation support bracket 13 Locking support part 2 Hook 21 Female thread part 22 Gutter part 3 Bolt 31 Head part 32 Shaft part 32a Grasping part 32b Male screw part 32c Stepped portion 4 Spacer 41, 41 Through hole 41a, 41a Upper inner peripheral surface 41b, 41b Lower inner peripheral surface 5 Clamp 51 Arc-shaped member 51a Engaging claw 52 Arc-shaped member 52a Engaging portion 53 Hinge portion 54, 54 Fitting portion 54a, 54a Placement surface 54b, 54b Locking surface 55, 55 Grasping part B Floor (vehicle body)
U Underfloor RW Rear wheel S Spare tire E Escape space

Claims (3)

One end side of a carrier main body, which is disposed so that a spare tire can be placed under the floor at the rear of the car body of an automobile, is rotatably supported by the car body, and the other end side is supported by the car body by a carrier support portion configured as a rod-shaped assembly. By operating the carrier support portion, the rotation position of the carrier body can be switched between a retracted state in which the spare tire is stored under the floor and a takeout state in which the spare tire can be taken out of the vehicle body. A spare tire carrier,
The carrier support portion includes a long bolt that is suspended from the floor surface of the vehicle body so that the shaft portion is rotatable, and the other end side of the carrier body is hooked to the tip portion of the shaft portion of the bolt. A hook having a portion that can be formed, and a spacer that is formed in a cylindrical shape and is inserted into the base side of the shaft portion of the bolt and screwed to the shaft portion of the bolt to perform screwing positioning,
Between the shaft portion of the bolt and the spacer inserted through the shaft portion, the spacer is prevented from naturally falling from the shaft portion of the bolt even when the hook is not screwed into the shaft portion of the bolt. Drop-off prevention means are provided ,
The drop prevention means has a stepped portion in which the shaft side of the bolt is smaller in diameter than the tip side of the bolt, and the spacer has a through hole that communicates with the inside and outside of the cylindrical shape. A clamp having a fitting portion to be fitted inward is mounted on the outer peripheral surface of the spacer, and the fitting portion of the clamp is formed with a gripping portion that is engaged with a step portion of the shaft portion of the bolt. In addition, the spare tire carrier is characterized in that the spacer is prevented from falling by being locked to the stepped portion of the bolt by the fitting portion of the clamp attached to the spacer . A clamp that constitutes means for preventing the spare tire carrier from falling off according to claim 1 ,
The clamp is made of resin, and an arc-shaped member divided in two so as to be able to grip the outer peripheral surface of the spacer is configured to be connected to be rotatable by a hinge portion. Both other end portions are configured to be engaged by engagement means capable of maintaining the mounting state of the arc-shaped member to the spacer, and the arc-shaped member has a grip portion that fits into a through hole formed in the spacer. The clamp characterized by the insertion part which has in a front-end | tip being formed integrally. The clamp according to claim 2 ,
Two insertion portions to be inserted into the through holes of the spacer are formed in the upper and lower sides in the axial direction, and are configured to be fitted and locked to the upper end and the lower end of the through hole, and the stepped portion of the bolt The gripping portion to be locked is formed so as to protrude obliquely downward from the fitting portion at the upper position, so that when the spacer is inserted from the tip portion into the shaft portion of the bolt with the clamp mounted on the spacer, The clamp is characterized in that the gripping portion is bent and can be inserted.

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