JP2022068449A - Wheel fastening device for vehicle - Google Patents

Abstract

To provide a wheel fastening device for a vehicle capable of surely functioning even when a vehicle height is changed without requiring complicated work.SOLUTION: By a pulling-up mechanism 15 pulling up a connecting member 16, a wheel fastening member 14 is pulled up to an arm tip part 12B of an arm 12, and the arm 12 is pulled up to an arm storage position where the arm tip part 12B is raised to a predetermined height at one side of an arm base end 12A in a vehicle longitudinal direction. When the pulling-up of the connecting member 16 by the pulling-up mechanism 15 is released and the arm 12 is tilted downward toward the other side in the vehicle longitudinal direction in a state where the arm 12 is held at the arm storage position, the wheel fastening member 14 is separated from the arm tip part 12B and falls, and a bottom surface 14B of the wheel fastening member 14 is placed on a ground 3 on one side of a wheel 2.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to a ring fastening device that prevents an unintended movement of a stopped vehicle.

Patent Document 1 discloses a wheel chock device provided with a wedge-shaped rotation prohibiting member arranged at a prohibited position formed in a gap between the ground and the wheel and prohibiting the rotation of the wheel. The rotation prohibition member is selectively moved to a prohibited position and a non-prohibited position where rotation of the wheel is not prohibited by the moving mechanism. The moving mechanism includes a cylinder having a cylinder shaft, and a rotation prohibition member is detachably attached to the tip of the cylinder shaft. A bracket is fixed to a mounting frame fixed to the vehicle, and the rear end of the cylinder is rotatably attached to the bracket as the cylinder shaft expands and contracts.

The tip of a long guide rod is rotatably fixed to the center of the cylinder shaft in the longitudinal direction, and the rear end of the guide rod is attached to the mounting frame so that it can rotate as the cylinder shaft expands and contracts. It is attached to a fixed bracket. The guide rod guides the cylinder shaft so that the rotation prohibition member moves from the non-prohibited position to the prohibited position.

One end of a connecting member such as a chain or a rope is connected to the upper portion of the rotation prohibiting member, and the other end of the connecting member is connected to a winding mechanism fixed to a mounting frame. By winding the connecting member by the winding mechanism, the rotation prohibition member located in the prohibited position can be moved to the non-prohibited position.

A lock mechanism is fixed to the tip of the cylinder shaft, and a catcher mechanism for attaching and detaching the lock mechanism is fixed to the rotation prohibiting member. A guide pin for guiding the lock mechanism to the catcher mechanism is formed in the lock mechanism, and the guide pin is inserted into the guide hole of the catcher mechanism.

The lock mechanism has locks arranged at four places, and the catcher mechanism has catchers engaged with the four locks arranged at four places. When the lock and the catcher are separated from each other, the lock and the catcher are firmly fixed by pressing the lock against the catcher with a predetermined force. On the other hand, when the lock and the catcher are fixed to each other, the lock is released by pressing the lock against the catcher with a predetermined force, and the lock and the catcher are separated from each other.

When moving the rotation prohibition member from the non-prohibited position to the prohibited position, the movement mechanism is driven. By driving the moving mechanism, the cylinder shaft starts to extend, the guide rod starts to rotate around the rear end portion, and the cylinder shaft is guided by the guide rod while extending, and the rotation prohibition member reaches the prohibited position. The rotation prohibition member that has reached the prohibited position is blocked by the wheels and cannot advance further, and by further extending the cylinder shaft in this state, the lock and the catcher fixed to each other are separated from each other. Subsequently, by contracting the cylinder shaft, the rotation-prohibited member and other members other than the connecting member are moved to the non-prohibited position, and the wheel is kept in a non-rotatable state.

When moving the rotation prohibition member from the prohibited position to the non-prohibited position, the movement mechanism is driven. By driving the moving mechanism, the cylinder shaft is kept in the same state, and the connecting member is wound by the winding mechanism. As a result, the rotation prohibition member moves to the non-prohibited position together with the connection member, reaches the vicinity of the tip of the cylinder shaft, and the lock and the catcher are fixed to each other while the guide hole is guided by the guide pin, and the rotation prohibition member is not. It is held in the prohibited position.

Japanese Unexamined Patent Publication No. 2008-254719

Generally, the vehicle body is elastically supported so as to be able to move up and down with respect to the axle of the wheel, and the height of the vehicle body (vehicle height) with respect to the axle (wheel) and the ground fluctuates according to the load capacity (vehicle weight) of the vehicle. However, the wheel chock device of Patent Document 1 is not configured assuming fluctuations in vehicle height. For example, when the cylinder and the guide rod are set so that the rotation prohibition member moves to the rotation prohibition position when the vehicle height is a predetermined reference height, if the vehicle height is lower than the reference height, the rotation prohibition member is set. If the vehicle height is higher than the reference height, the rotation prohibition member abuts on the wheels and is prevented from moving above the rotation prohibition position. .. In this way, when the rotation prohibition member comes into contact with the ground or wheels at a position other than the prohibited position to prevent movement, a pressing force acts on the lock mechanism and the catcher mechanism from a direction different from the design direction, and rotation is prohibited with the cylinder shaft. There is a possibility that the fixing with the member will not be released smoothly. In addition, the locking mechanism and the catcher mechanism may be damaged by the pressing force acting from a direction different from the design direction. That is, the wheel fastening device of Patent Document 1 may not function effectively when the vehicle height fluctuates.

Therefore, it is an object of the present disclosure to provide a wheel fastening device for a vehicle that can be reliably functioned even when the height of the vehicle body fluctuates without requiring complicated work.

In order to achieve the above object, the first aspect of the present disclosure is a vehicle ring fastening device in which a vehicle body is elastically supported by an axle of a wheel, and an arm, a wedge-shaped ring fastening member, and a string-shaped connecting member. And a pulling mechanism.

The arm is arranged on one side of the wheel in the vehicle front-rear direction, and has an arm base end portion and an arm tip portion at both ends. The base end of the arm is rotatably supported toward the vehicle body, and the arm can be tilted above the lower end of the wheel. The connecting member is connected to the ring fastening member via the tip of the arm, and the pulling mechanism can pull the connecting member.

When the pulling mechanism pulls up the connecting member, the ring fastening member is attracted to and held by the tip of the arm, and the arm is stored in the arm in which the tip of the arm is raised to a predetermined height on one side of the base of the arm. Pulled up to position. With the arm pulled up to the arm storage position, the pulling mechanism releases the pulling of the connecting member, and when the arm tilts downward toward the other side in the front-rear direction of the vehicle, the wheel fastening member falls away from the tip of the arm. However, the bottom surface of the ring fastening member is placed on the ground on the above-mentioned one side of the wheel.

In the first aspect, when the vehicle is running, the ring fastening member is held at the tip of the arm, and the arm is pulled up to the arm storage position. As a result, the wheel fastening member is supported on the vehicle body side above the ground, and the rotation of the wheels is not blocked.

To prevent the unintentional movement of the stopped vehicle, the pulling mechanism releases the pulling of the connecting member, and the arm is tilted downward from the arm storage position toward the other side in the vehicle front-rear direction. When the arm tilts downward, the ring fastening member falls away from the tip of the arm, and the bottom surface of the ring fastening member is placed on the ground on the one side of the wheel. Workers such as occupants move the ring fastening member placed on the ground with their toes or the like and insert it downward from one side of the wheel. By inserting the wheel fastening member below the wheel, the rotation of the wheel (rotation that moves the vehicle to one side) is blocked by the wheel fastening member.

Since the wheel fastener member is dropped from the tip of the arm, placed on the ground, and then inserted below the wheel, it is complicated even if the vehicle height fluctuates according to the load capacity (vehicle weight) of the vehicle. The ring fastening member can be reliably functioned without requiring any work.

When starting the vehicle, the connecting member is pulled up by the pulling mechanism. As a result, the ring fastening member is attracted and held by the tip of the arm, the arm is pulled up and held at the arm storage position, and the rotation inhibition of the wheel is released.

The second aspect of the present disclosure is the ring fastening device of the first aspect, which includes an arm storage holding means for holding the arm at the arm storage position so as to be releasable.

In the second aspect, when the unintentional movement of the stopped vehicle is prevented, the holding of the arm by the arm storage holding means is released, and then the pulling of the connecting member by the pulling mechanism is released. When starting the vehicle, the connecting member is pulled up by the pulling mechanism, the ring fastening member is attracted and held at the tip of the arm, the arm is pulled up to the arm storage position, and then the arm is stored by the arm storage holding means. Hold in position. In this way, the arm is held in the arm storage position by the arm storage holding means when the vehicle is running, and the movement of the arm due to vibration or the like during the vehicle running is reliably prevented. It is possible to prevent the generation of sounds (collision sounds, vibration sounds, etc.). Further, since it is not necessary to hold the arm at the arm storage position by the pulling mechanism, the load on the pulling mechanism can be reduced.

The third aspect of the present disclosure is the ring fastening device of the first or second aspect, in which the ring fastening member tilts downward from the arm storage position to reach the arm deployment position, and the ring fastening member is from the arm tip portion. It is equipped with an arm deployment holding mechanism that holds it in the arm deployment position when it is separated. The arm deployment holding mechanism releases the holding of the arm when the ring fastening member is attracted by the connecting member to the arm tip portion of the arm held at the arm deployment position.

In the third aspect, when the connecting member is pulled up from the ground by the pulling mechanism to start the vehicle, the arm is deployed by the arm deployment holding mechanism until the ring fastening member is attracted to the tip of the arm. The arm is held in the position, and after the ring fastening member is attracted to the tip of the arm and the holding of the arm is released, the arm is pulled up to the arm storage position. In this way, the arm is held in the arm deployment position without tilting until the ring fastening member is attracted to the arm tip, so that the ring fastening member is securely attracted and held to the arm tip. Can be done.

The fourth aspect of the present disclosure is the ring fastening device of the first to third aspects, in which the arm at the arm storage position tilts the ring fastening member attracted to the tip of the arm by the connecting member downward. The arm is held at the tip of the arm until it reaches a predetermined tilting position, and when the arm reaches the tilting position, the ring-fastening member is released from the tip of the arm.

In the fourth aspect, in order to prevent the unintentional movement of the stopped vehicle, the pulling of the connecting member by the pulling mechanism is released, and the arm is tilted downward from the arm storage position toward the other side in the vehicle front-rear direction. At that time, until the arm reaches a predetermined tilting position, the ring fastening member is held at the tip of the arm by the ring fastening member holding mechanism, and when the arm reaches the predetermined tilting position, the ring fastening member moves to the arm. It is released from the tip and falls. In this way, since the ring fastening member falls at the timing when the arm reaches a predetermined tilting position, the position where the ring fastening member starts to fall (position and height in the vehicle front-rear direction) can be stabilized, and the ring fastening member can be fixed. The bottom surface of the member can be reliably placed at a desired position on the ground.

According to the ring fastening device of the present disclosure, it is possible to reliably function even when the vehicle height fluctuates without requiring complicated work.

It is a side view schematically showing the retracted state of the ring fastening device which concerns on 1st Embodiment of this invention. It is a side view schematically showing the transition from the retracted state to the used state of the ring fastening device of FIG. 1. It is a side view schematically showing the transition from the retracted state to the used state of the ring fastening device of FIG. 1. It is a side view which shows typically the use state of the ring fastening device of FIG. It is a perspective view of the configuration example of the ring fastening device of FIG. It is an exploded perspective view of the configuration example of FIG. It is a side view schematically showing the retracted state of the ring fastening device which concerns on 2nd Embodiment of this invention. It is a side view which shows typically the use state of the ring fastening device of FIG. It is a perspective view of the configuration example of the ring fastening device of FIG. It is a perspective view of the arm of the configuration example of FIG. It is a perspective view of the arm and the ring fastening member of the configuration example of FIG. 7. It is a side view which shows a part of the arm and the ring fastening member of the configuration example of FIG. 7 in the cross section. It is a rear view which shows a part of the arm and the ring fastening member of the structural example of FIG. 7 in the cross section. It is a plan view of the lock convex part of the configuration example of FIG. 7, (a) is a state before being locked by an operation plate, (b) is a state in the middle of locking, and (c) is a state after being locked. Are shown respectively.

Hereinafter, the ring fastening device according to the first embodiment of the present invention will be described with reference to the drawings. In the figure, the arrow FR indicates the front of the vehicle, and the arrow UP indicates the upper side.

As shown in FIGS. 1 to 4, the vehicle body frame 1 constituting the vehicle body skeleton is elastically supported by the axles (not shown) of the wheels (tires) 2 and the wheels 2 are elastically supported on the rear side of the vehicle (one side in the vehicle front-rear direction). ), The mudflap 4 is fixed to the vehicle body frame 1 and hangs down.

As shown in FIGS. 1 to 6, the ring fastening device 10 includes a base 11, an arm 12, a ring fastening member 14, a winder (reel, winch) 15, a connecting member 16, and a locking portion 17. And an engaging portion 18 are roughly configured. The base 11 is arranged on the vehicle rear side of the mudflap 4 and is fixed to the vehicle body frame 1.

The arm 12 is a long member having a base end portion (arm base end portion) 12A and a tip end portion (arm tip portion) 12B at both ends, and is arranged on the rear side of the mudflap 4. The arm rotation shaft 19 extends in the vehicle width direction, and the arm base end portion 12A is rotatably supported by the base 11 on the vehicle body side about the arm rotation shaft 19. The arm 12 hangs from the base 11 so as to be tiltable about the arm rotation shaft 19 above the lower end (ground 3) of the wheel 2. The arm tip portion 12B is formed with a ring fastening mounting portion 13 to which the ring fastening member 14 is slidably engaged. The base 11 is provided with a stopper 20 that abuts on the arm 12 and restricts the tilt range of the arm 12 toward the front side of the vehicle (the other side in the front-rear direction of the vehicle) to the arm deployment position. The slide engagement direction of the ring fastening member 14 with respect to the ring fastening mounting portion 13 is set in the direction from the lower side to the upper side with the arm 12 tilted to the arm deployment position.

The ring fastening member 14 is a wedge-shaped block body having an upper surface 14A and a lower surface 14B, and the upper surface 14A faces the front side of the vehicle (the other side in the vehicle front-rear direction) with the bottom surface 14B placed on the ground 3. And incline downward. A mounted portion 21 is formed on the ring fastening member 14. The ring fastening mounting portion 13 of the arm 12 and the mounting portion 21 of the ring fastening member 14 have a concave-convex shape that allows them to slide and engage with each other (see FIGS. 5 and 6), and the mounted portion 21 is mounted on the ring fastening mounting portion. By moving the ring fastening member 14 toward the arm 12 in accordance with 13, the mounted portion 21 slides and engages with the ring fastening mounting portion 13 so as to be detachable.

The winder 15 is fixedly supported with respect to the base 11. The connecting member 16 is a string-shaped member such as a chain or a wire. One end of the connecting member 16 is connected to the winder 15, and the connecting member 16 is sequentially wound from one end side by the winder 15. A guide 22 for guiding the movement of the connecting member 16 is provided on the base 11 side (in the present embodiment, the arm base end portion 12A). The connecting member 16 is arranged so as to pass through the ring fastening mounting portion 13 and the mounted portion 21 via the arm tip portion 12B. The other end of the connecting member 16 is connected to the ring fastening member 14, and the winder 15 constitutes a pulling mechanism capable of pulling up the connecting member 16. In order to stabilize the posture of the ring fastening member 14 when the ring fastening member 14 is pulled up by the connecting member 16, a plurality of (two in the illustrated example) connecting members 16 are arranged (see FIG. 6). The guide 22 can be set in any shape (for example, roller shape, hole shape, groove shape, etc.). The pulling mechanism is not limited to the winder 15, and may have another configuration (for example, a configuration in which one end of the connecting member 16 is connected to the rod of a cylinder having a stretchable rod).

When the winder 15 winds up the connecting member 16 and pulls it up, the ring fastening member 14 moves toward the arm tip portion 12B, and the mounted portion 21 slides and engages with the ring fastening mounting portion 13 (ring). The fastening member 14 is attracted to the arm tip portion 12B), and the ring fastening member 14 is held by the arm tip portion 12B. Further, when the connecting member 16 is further pulled up while the ring fastening member 14 is held by the arm tip portion 12B, the arm tip portion 12B is raised to a predetermined height on the vehicle rear side of the arm base end portion 12A. It is pulled up and held in the arm storage position (see FIG. 1). With the arm 12 positioned at the arm storage position, the pulling of the connecting member 16 by the winder 15 is released, and the arm 12 tilts downward toward the front side of the vehicle (the other side in the front-rear direction of the vehicle) to the arm deployment position. (See FIG. 2), the ring fastening member 14 falls away from the arm tip portion 12B, and the bottom surface 14B of the ring fastening member 14 is placed on the ground 3 on the vehicle rear side of the wheel 2 (see FIG. 3). ).

The holding posture of the ring fastening member 14 with respect to the arm 12 is a state in which the bottom surface 14B is placed on the ground 3 after falling from the arm tip portion 12B (the ring fastening member mounting state), and the upper surface 14A is downward toward the front side of the vehicle. It is set to incline to.

The locking portion 17 is fixed to the arm 12, and the engaging portion 18 is fixed to the base 11. When a worker such as a occupant lifts the arm 12 pulled up to the arm storage position and tilts it upward, the locking portion 17 engages with the engaging portion 18. In the engaging portion 18 of the present embodiment, when the locking portion 17 is pushed once toward the engaging portion 18, the two are inseparably engaged with each other, and in such a state, the locking portion 17 is moved toward the engaging portion 18. It is a one-push latch type that disengages and disengages when pressed again. When the operator lifts the arm 12 and pushes up the arm 12 further after the locking portion 17 reaches the engaging portion 18, the locking portion 17 engages with the engaging portion 18 and the arm 12 is held at the arm storage position. Will be done. When the arm 12 held in the arm storage position is pushed up, the engagement between the locking portion 17 and the engaging portion 18 is released. That is, the locking portion 17 and the engaging portion 18 constitute an arm storage holding means 23 that releasably holds the arm 12 at the arm storage position. The configuration of the arm storage / holding means 23 is not limited to the above, and may be another configuration (for example, a configuration in which the arm 12 is bound to the base 11 by a binding member such as a band and held).

Next, the operation of the ring fastening device 10 will be described.

When the vehicle is running, the connecting member 16 is pulled up, the ring fastening member 14 is held by the arm tip portion 12B, the arm 12 is pulled up to the arm storage position, the locking portion 17 is engaged with the engaging portion 18, and the arm is engaged. 12 is held in the arm storage position (see FIG. 1). As a result, the wheel fastening member 14 is supported on the vehicle body side above the ground 3, and the rotation of the wheel 2 is not prevented.

When preventing the unintended movement of the stopped vehicle, the engagement between the locking portion 17 and the engaging portion 18 is released, and the pulling (winding) of the connecting member 16 by the winder 15 is released. As a result, the arm 12 tilts downward from the arm storage position toward the arm deployment position on the front side of the vehicle. When the arm 12 reaches the arm deployment position (see FIG. 2), the ring fastening member 14 falls away from the arm tip portion 12B, and the bottom surface 14B of the ring fastening member 14 is placed on the ground 3 on the vehicle rear side of the wheel 2. (See FIG. 3). An operator such as an occupant moves the ring fastening member 14 placed on the ground 3 to the front side of the vehicle by a toe or the like, and inserts the wheel fastening member 14 from the rear side of the vehicle to the lower side of the wheel 2. By inserting the wheel fastening member 14 below the wheel 2, the rotation of the wheel 2 (rotation that moves the vehicle to the rear side of the vehicle) is blocked by the wheel fastening member 14.

When the vehicle is started, the connecting member 16 is pulled up (wound) by the winder 15. As a result, the ring fastening member 14 is attracted to and held by the arm tip portion 12B, the arm 12 is pulled up to the arm storage position, and the rotation inhibition of the wheel is released. Further, the locking portion 17 is engaged with the engaging portion 18 to hold the arm 12 in the arm storage position.

According to the present embodiment, the wheel fastening member 14 is dropped from the arm tip portion 12B, placed on the ground 3, and then inserted below the wheel 2, so that the vehicle height is adjusted according to the load capacity (vehicle weight) of the vehicle. Even when the wheel is changed, the ring fastening member 14 can be reliably functioned without requiring complicated work.

When the vehicle is running, the arm 12 is held in the arm storage position by the arm storage holding means 23, and the movement of the arm 12 due to vibration or the like during the vehicle running is reliably prevented. It is possible to prevent the generation of abnormal noise (collision noise, vibration noise, etc.). Further, since it is not necessary to hold the arm 12 at the arm storage position by the winder 15 (connecting member 16), the load on the winder 15 can be reduced.

Next, the second embodiment of the present invention will be described with reference to FIGS. 7 to 14. This embodiment is provided with the arm deployment holding mechanism 24 and the ring fastening member holding mechanism 25, and the description thereof will be omitted for the configuration common to the first embodiment. Further, some of the configurations common to the first embodiment are not shown.

As shown in FIGS. 9 to 13, the ring fastening mounting portion 13 of the arm 12 of the present embodiment has a concave shape that opens downward at the arm deployment position (see FIG. 8), and the ring fastening member 14 is mounted. The portion 21 has a convex shape that can be slidably engaged with the ring fastener mounting portion 13 from below (see FIG. 13). When the mounted portion 21 is pulled up by the connecting member 16, the mounted portion 21 slides and engages with the ring fastening mounting portion 13 and enters the predetermined mounting position of the ring fastening mounting portion 13 (in FIG. 13 by a two-dot chain line). show). A lock arm insertion opening 26 that opens to the front side of the vehicle at the arm deployment position is formed at the lower portion of the ring fastener mounting portion 13 (see FIG. 12), and at the upper portion of the ring fastener mounting portion 13 in the vehicle width direction at the arm deployment position. A cam insertion opening 27 that opens to one side (outside in the vehicle width direction in the illustrated example) is formed (see FIG. 11). The mounted portion 21 is formed with a lock engaging recess 28 that communicates with the lock arm insertion opening 26 at the mounting position (see FIG. 12).

As shown in FIG. 12, the arm 12 is provided with a lock arm 29. The lock arm 29 is arranged on the vehicle front side of the arm 12 in the arm deployment position, and the intermediate portion of the lock arm 29 is rotatably supported by the intermediate portion of the arm 12 about the lock arm rotation shaft 30 extending in the vehicle width direction. To. The upper end portion (upper end portion of the lock arm) 29A of the lock arm 29 is bent and extended toward the front side of the vehicle (opposite side of the arm 12), and the lower end portion (lower end portion of the lock arm) 29B of the lock arm 29 is the rear side (arm) of the vehicle. It bends to the 12 side) and extends. The lock arm 29 has a lock position (indicated by a two-dot chain line in FIG. 12) at which the lower end portion 29B of the lock arm has entered the ring fastening mounting portion 13 from the lock arm insertion opening 26, and the lower end portion 29B of the lock arm is the ring fastening mounting portion 13. It can be tilted about the lock arm rotation shaft 30 with and from the unlocked position (shown by a solid line in FIG. 12), and is urged to the locked position by the lock spring 31.

By tilting the lock arm 29 to the unlocked position against the urging force of the lock spring 31, the lower end portion 29B of the lock arm is disengaged from the ring fastening mounting portion 13, and the mounted portion 21 of the ring fastening member 14 is the ring fastening mounting portion. It is possible to enter the mounting position of 13 from below. When the tilting operation of the lock arm 29 to the unlocked position is released while the mounted portion 21 has entered the mounting position of the ring fastening mounting portion 13, the lock arm 29 is tilted to the locked position by the urging force of the lock spring 31. Then, the lower end portion 29B of the lock arm enters the lock engagement recess 28 of the ring fastening member 14 (mounted portion 21) through the lock arm insertion opening 26. The mounted portion 21 (ring fastening member 14) is held by the ring fastening mounting portion 13 (arm tip portion 12B) by the lock arm lower end portion 29B that has entered the lock engaging recess 28.

A plate-shaped operation plate 32 is fixed to the base 11 (see FIG. 1). When the arm 12 is in the arm storage position (see FIG. 1), the operation plate 32 is separated from the upper end portion 29A of the lock arm (indicated by a two-dot chain line in FIG. 12), and the arm 12 is tilted downward to deploy the arm. When approaching the position, it comes into contact with the upper end portion 29A of the lock arm, and the arm 12 tilts to the arm deployment position, thereby pushing the upper end portion 29A of the lock arm against the urging force of the lock spring 31 and locking the lock arm 29 to the lock position. It is arranged so as to tilt from to the unlocked position. By tilting the lock arm 29 from the lock position to the unlock position, the lock arm 29 releases the holding of the mounted portion 21 (ring fastening member 14).

In this way, the lock arm 29, the lock spring 31, and the operation plate 32 are such that the ring fastening member 14 attracted to the arm tip portion 12B by the connecting member 16 is tilted downward by the arm 12 at the arm storage position to deploy the arm. It constitutes a ring fastening member holding mechanism 25 that holds the ring fastening member 14 at the arm tip portion 12B until the position (predetermined tilting position) is reached, and releases the ring fastening member 14 from the arm tip portion 12B when the arm 12 reaches the arm deployment position. .. The configuration of the ring fastening member holding mechanism 25 is not limited to the above, and may be another configuration. Further, the position where the ring fastening member holding mechanism 25 releases the holding of the ring fastening member 14 is not limited to the arm deployment position, and can be set to any position between the arm storage position and the arm deployment position.

As shown in FIGS. 10 and 13, the arm 12 is provided with a lever latch portion 33 and a rod 34, and the mounted portion 21 of the ring fastening member 14 is provided with a rod contact portion 35. The lever latch portion 33 includes a lock convex portion 36 and a cam portion 37. The lock convex portion 36 has a lock position (states of FIGS. 14A and 14C) protruding toward one side in the vehicle width direction (inside in the vehicle width direction in the illustrated example) and a lock immersive in the other side in the vehicle width direction. It can slide to and from the release position and is urged to the lock position by a lock spring (not shown). The cam portion 37 rotates in conjunction with the slide movement of the lock convex portion 36.

The tip portion (cam tip portion) 37A of the cam portion 37 is inserted into the upper part of the ring fastening mounting portion 13 from the cam insertion opening 27. The rod 34 is a rod-shaped body that extends in the vertical direction at the arm deployment position, and is supported by the arm 12 so as to be slidable. The upper end portion (rod upper end portion) 34A of the rod 34 is arranged below the cam tip portion 37A. When the mounted portion 21 of the ring fastening member 14 enters the mounting position of the ring fastening mounting portion 13, the rod contact portion 35 of the mounted portion 21 pushes up the lower end portion (rod lower end portion) 34B of the rod 34, and the rod 34 Moves upward (indicated by the alternate long and short dash line in FIG. 13). As a result, the cam tip portion 37A is pushed up by the rod upper end portion 34A, the cam portion 37 rotates against the urging force of the lock spring, and the lock convex portion 36 moves from the lock position to the lock release position.

One surface of the lock convex portion 36 (the surface on the front side of the vehicle at the arm deployment position) is an inclined surface 36A in which the amount of protrusion gradually decreases toward the front side of the vehicle. When the arm 12 is in the arm storage position, the operation plate 32 is separated from the lock convex portion 36 (indicated by a two-dot chain line in FIG. 12), and when the arm 12 tilts downward and approaches the arm deployment position. The lock convex portion 36 is in contact with the inclined surface 36A of the lock convex portion 36, and the lock convex portion 36 is locked against the urging force of the lock spring by sliding on the inclined surface 36A until the arm 12 reaches the arm deployment position. When the arm 12 is pushed into the release position (see FIG. 14B) and the arm 12 reaches the arm deployment position, the lock protrusion 36 is arranged so as to get over the operation plate 36 and return to the lock position. When the arm 12 reaches the arm deployment position, the ring fastening member 14 is separated from the arm tip portion 12B as described above, so that the rod 34 is lowered and the lock convex portion 36 returns to the lock position by the urging force of the lock spring. In a state where the arm 12 reaches the arm deployment position and the lock convex portion 36 returns to the lock position (arm lock state), the arm 12 is tilted to the arm storage position (the lock convex portion 36 trying to get over the operation plate 32). The movement) is blocked by the non-tilted surface (the surface on the rear side of the vehicle) 36B of the lock protrusion 36 (see FIG. 14 (c)).

In this way, the lever latch portion 33, the rod 34, the rod contact portion 35, and the operation plate 32 are tilted downward from the arm storage position to reach the arm deployment position, and the ring fastening member 14 is at the tip of the arm. When the ring fastening member 14 is attracted by the connecting member 16 to the arm tip portion 12B of the arm 12 held in the arm deploying position when it is separated from the portion 12B, the holding of the arm 12 is released. The arm deployment holding mechanism 24 is configured. The configuration of the arm deployment holding mechanism 24 is not limited to the above, and may be another configuration.

According to the present embodiment, when the connecting member 16 is pulled up from the ground 3 by the winder 15 to start the vehicle, the arm is deployed until the ring fastening member 14 is attracted to the arm tip portion 12B. The arm 12 is held in the arm deployment position by the holding mechanism 24, and after the ring fastening member 14 is attracted to the arm tip portion 12B and the holding of the arm 12 is released, the arm 12 is pulled up to the arm storage position. In this way, the arm 12 is held in the arm deployment position without tilting until the ring fastening member 14 is attracted to the arm tip portion 12B, so that the ring fastening member 14 is reliably pulled to the arm tip portion 12B. Can be attached and held.

Further, in order to prevent the unintentional movement of the stopped vehicle, the arm 12 is tilted downward from the arm storage position toward the front side of the vehicle by releasing the pulling of the connecting member 16 by the winder 15. Until the arm 12 reaches the arm deployment position, the ring fastening member 14 is held by the ring fastening member holding mechanism 25 at the arm tip portion 12B, and when the arm 12 reaches a predetermined tilting position, the ring fastening member moves to the arm. It is released from the tip and falls. In this way, since the ring fastening member 14 falls at the timing when the arm reaches the arm deployment position, the position where the ring fastening member 14 starts to fall (position and height in the vehicle front-rear direction) can be stabilized, and the wheel can be set. The bottom surface 14B of the fastening member 14 can be reliably placed at a desired position on the ground 3.

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the contents of the above-described embodiment, and can be appropriately modified without departing from the present invention. That is, it goes without saying that all other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are included in the scope of the present invention.

For example, in the above embodiment, the example in which the wheel fastening member 14 is mounted on the vehicle rear side of the wheel 2 has been described, but the ring fastening device 10 is configured so that the wheel fastening member 14 is mounted on the vehicle front side of the wheel 2. You may.

The present invention can be applied to various vehicles as a ring fastening device for preventing unintended movement of a stopped vehicle.

1: Body frame 2: Wheels 3: Ground 4: Mudflap 10: Ring fastener 11: Base 12: Arm 12A: Arm base end 12B: Arm tip 13: Ring fastener mounting part 14: Ring fastener 14A: Ring fastener Top surface of member 14B: Bottom surface of mudflap member 15: Winder (pulling mechanism)
16: Connection member 17: Locking part 18: Engaging part 19: Arm rotation shaft 20: Stopper 21: Attached part 22: Guide 23: Arm storage holding means 24: Arm deployment holding mechanism 25: Ring fastening member holding mechanism 26 : Lock arm insertion opening 27: Cam insertion opening 28: Lock engagement recess 29: Lock arm 29A: Lock arm upper end 29B: Lock arm lower end 30: Lock arm rotation shaft 31: Lock spring 32: Operation plate 33: Lever latch 34: Rod 34A: Rod upper end 34B: Rod lower end 35: Rod contact 36: Lock convex 36A: Lock convex inclined surface 36B: Lock convex non-inclined surface 37: Cam 37A: Cam tip

Claims (4)

It is a wheel fastening device for vehicles whose vehicle body is elastically supported by the axles of the wheels.
The wheel is arranged on one side in the vehicle front-rear direction, has an arm base end portion and an arm tip portion at both ends, and the arm base end portion is rotatably supported toward the vehicle body side and is more than the lower end portion of the wheel. An arm that can be tilted upward,
With a wedge-shaped ring fastening member,
A string-shaped connecting member connected to the ring fastening member via the tip of the arm,
A pulling mechanism capable of pulling the connecting member is provided.
When the pulling mechanism pulls up the connecting member, the ring fastening member is attracted to and held by the arm tip portion, and the arm tip portion is on the one side of the arm base end portion. It is pulled up to the arm storage position that has risen to the specified height,
When the arm is pulled up to the arm storage position, the pulling mechanism releases the pulling of the connecting member, and the arm tilts downward toward the other side in the front-rear direction of the vehicle, the wheel fastening member is moved. A vehicle ring fastening device characterized in that the bottom surface of the ring fastening member falls away from the tip of the arm and is placed on the ground on the one side of the wheel. The ring fastening device according to claim 1.
A vehicle wheel fastening device comprising: an arm storage holding means for holding the arm in a releaseable position at the arm storage position. The ring fastening device according to claim 1 or 2.
An arm deployment holding mechanism for holding the arm that has reached the arm deployment position by tilting downward from the arm storage position at the arm deployment position when the ring fastening member is separated from the arm tip portion is provided.
The arm deployment holding mechanism is characterized in that when the ring fastening member is attracted by the connection member to the arm tip portion of the arm held at the arm deployment position, the holding of the arm is released. Ring fastening device. The ring fastening device according to any one of claims 1 to 3.
The ring fastening member attracted to the arm tip by the connecting member is held at the arm tip until the arm at the arm storage position tilts downward and reaches a predetermined tilt position, and the arm is held. A vehicle ring fastening device comprising a ring fastening member holding mechanism that releases the ring fastening member from the arm tip portion when the tilting position is reached.

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