JPH0649288U - Wheel reverse prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] When parking a bicycle on the upper tier of a bicycle parking device that can be parked in two upper and lower tiers, easily guide the bicycle in the groove of the movable guide rail and prevent the bicycle from retracting. And then safely carry in and out the bicycle. [Structure] An opening is formed in a bottom plate near a rear end of a groove-shaped movable guide rail 2 which is movably inserted in a groove-shaped fixed guide rail, and both sides of the movable guide rail 2 corresponding to the opening are formed. The engaging piece 3a of the guide member 3 in a state of being guided by the guide member 3 whose end portion is protruded laterally and fixed.
The rim portion 10 of the wheel 10 is formed with an engaging portion 4a that engages with the
The lower end of the rocking member 4 provided with the stopper member 5 that abuts on a is attached to a shaft that is vertically movable at the opening position so that the spring force in the opening direction of the stopper member 5 is constantly applied. The movable guide rail 2 is provided with a stopper 7 which prevents the swing member 4 from excessively moving in the direction in which the stopper members 5 are opened.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wheel backward movement preventing device capable of preventing backward movement of wheels of a bicycle parked at an upper stage of a multi-level parking apparatus for a bicycle that can park a bicycle at upper and lower stages.

[0002]

[Prior art]

 In recent years, illegal parking of bicycles on the roads and sidewalks around stations and shopping streets has been increasing, and various social problems such as traffic and pedestrian safety obstacles and obstruction of commercial activities have occurred. Therefore, in order to solve such problems, a two-stage bicycle parking device that can efficiently park a bicycle on a limited area of land has been developed, and a large number of bicycles can be parked on a small land. Is becoming possible. The two-stage bicycle parking device as described above, that is, a device for parking a bicycle in the upper and lower stages, forms a space for parking the bicycle in the lower stage as shown in FIG. 5, for example. The structure is such that the groove-shaped fixed guide rail 1 is fixed to the frame so that the bicycle can be parked on the upper stage at a predetermined height, and the groove-shaped movable guide rail 2 is movably inserted into the fixed guide rail 1. Has become. In order to prevent the bicycle guided in the groove of the movable guide rail 2 from retreating above the rear end portion of the movable guide rail 2 and dropping off from the movable guide rail 2, a certain degree is usually provided. A stopper 11 that is in contact with the rear edge of the rear wheel of the bicycle at a height is fixed.

In order to park a bicycle on the upper stage of such a two-stage type bicycle parking device, the movable guide rail 2 is pulled out from the fixed guide rail 1 and is inclined as shown in FIG. Guide the bicycle from the front wheel side into the groove of the movable guide rail 2 while lifting the wheels so as to get over the front wheel and rear wheel, and then push forward the fixed guide while lifting the rear end of the movable guide rail 2. The bicycle is parked on the upper tier by inserting it into the rail 1. Therefore, when guiding the bicycle into the groove of the movable guide rail 2, it requires a work to lift the bicycle so that each of the front wheels and the rear wheels gets over the stopper 11, which requires a great deal of force, especially for a powerless person such as a woman or a child. There was a drawback that it was a difficult work. Then, the bicycle guided in the groove of the movable guide rail 2 is locked by the stopper 11 fixed above the rear end of the movable guide rail 2 with the rear edge of the rear wheel abutting. Therefore, it is guided in such a state that the movable guide rail 2 easily moves in the longitudinal direction in the groove. Therefore, when the movable guide rail 2 that guides the bicycle in the groove is lifted and pushed forward to be inserted into the fixed guide rail 1, the bicycle moves in the movable guide rail 2 and becomes unstable, and the fixed guide rail becomes unstable. When it is difficult to insert the movable guide rail 2 into the rail 1, or when the movable guide rail 2 is suddenly lowered or accidentally released, the bicycle suddenly moves to the front and rear of the movable guide rail 2 and There is a problem that it may be dangerous because it may jump out of the movable guide rail 2 with momentum, or the operator may get injured by pinching his hand between the movable guide rail 2 and the rear wheel of the bicycle.

[0004]

[Problems to be solved by the device]

 The present invention solves the above-mentioned drawbacks of the prior art and allows a bicycle to be parked in the groove of the movable guide rail when the bicycle is parked above the multi-level parking device of the bicycle which can park the bicycle in two stages. An object of the present invention is to provide a wheel retraction prevention device that can be easily guided and, once the bicycle is guided into the groove of the movable guide rail, can prevent the bicycle from retreating and safely carry in and out the bicycle. And

[0005]

[Means for Solving the Problems]

 As a result of various studies conducted by the present inventors to solve such a problem, the rear end of the groove-shaped movable guide rail which is movably inserted into the groove-shaped fixed guide rail fixed at a predetermined height. An opening is formed on the bottom plate in the vicinity, and an engaging piece is provided on a guide member whose end is projected and fixed on both sides of the movable guide rail corresponding to this opening. The lower end of the swinging member, which is formed with the engaging portion, is vertically guided at the opening position of the movable guide rail while being guided by the guide members on both sides in the groove direction of the movable guide rail. It is mounted so that it can be raised and lowered and is rotatable about an axis parallel to the groove direction of the movable guide rail, and is attached to the upper end of each rocking member on the rim of the bicycle wheel guided in the groove of the movable guide rail. Abutting stopper materials to each other Further, the swing member is provided with a spring for exerting a spring force for moving the stopper member at the upper end of the swing member in the direction opposite to the stopper member facing the swing member, and the wheel of the bicycle is movable. When not located in the opening of the rail, stop the rocking of the rocking member with the stopper material at the upper end opened.If a stopper is provided on the movable guide rail, the bicycle wheel can be fixed to the bottom of the movable guide rail. The inventors have completed the present invention by investigating that it is possible to reliably prevent the bicycle from retreating by positioning it in the opening formed in the plate.

Hereinafter, one embodiment of a wheel reverse prevention device according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a part of a movable guide rail equipped with an embodiment of a wheel reverse prevention device according to the present invention, and FIG. 2 is a front view showing an embodiment of a wheel reverse prevention device according to the present invention. FIG. 3 is a side view of FIG. 2, and FIG. 4 is a perspective view showing a part of a movable guide rail to which another embodiment of the wheel reverse movement preventing device according to the present invention is mounted.

In the drawings, 1 is a groove-shaped fixed guide rail that is fixed to a frame so as to form a space for parking a bicycle in a lower stage and to have a predetermined height for parking a bicycle in an upper stage, 2 Is a groove-shaped movable guide rail that is movably inserted in the fixed guide rail 1. The bottom plate 2a of the movable guide rail 2 has an opening 2b formed near the rear end as shown in FIG. There is.

Reference numeral 3 denotes a guide member fixed at a position corresponding to an opening 2b formed in the bottom plate 2a of the movable guide rail 2 in a state where its ends project to both sides of the movable guide rail 2, As in the illustrated embodiment, the upper surface and the lower surface having a substantially rectangular cross section are notched in a slit shape, or the flat plates are simply made parallel to each other at predetermined intervals so that the end portions thereof project to both sides of the movable guide rail 2. There are various modes in which two rod-shaped bodies are fixed to each other in a fixed state, or two rod-shaped bodies are fixed to the upper end and the lower end of the movable guide rail 2 at predetermined intervals, which will be described later. The rocking member 4 is configured to be guided at a position separated by at least an upper portion and a lower portion, and the rocking member 4 is reliably guided in the front-back direction, that is, on both sides of the movable guide rail 2 in the groove direction. There is. The guide member 3 is also provided with an engaging piece 3a that engages with an engaging portion 4a formed on a swinging member 4 described later.

Reference numeral 4 denotes a plate-shaped body having an engaging portion 4a that engages with an engaging piece 3a of the guide member 3 while being guided by the guide member 3 to both sides of the movable guide rail 2 in the groove direction. The rocking member is formed by a rod-shaped body, and the engaging portion 4a is formed on the outer edge of the rocking member 4 as shown in the figure, or the rocking member 4 is a plate (not shown). The plate-shaped body is provided with a positive-moving cam having a predetermined shape. Here, it is preferable that the engaging piece 3a of the guide member 3 is formed of a roller, even if the engaging portion 4a is formed in any of the above-described forms, and the engaging portion 4a is the latter positive cam. If, then it is a cam follower.

The upper end of the rocking member 4 is located inside the wheel 10 of the bicycle guided in the groove of the movable guide rail 2 and is in contact with the rim portion 10a of the wheel 10. The members 5 are provided so as to face each other, and the lower end of the swing member 4 is vertically movable at the position of the opening 2b of the movable guide rail 2 and is parallel to the groove direction of the movable guide rail 2. It is attached so that it can rotate around 4b. The shaft 4b at the lower end of the swinging member 4 is one shaft in which the lower end portions of the swinging member 4 are rotatably connected to each other as shown in FIGS. In some cases, when the bridge 9 is provided, the wheel bridges 9 are rotatably mounted at different positions. The stopper member 5 is preferably made of an elastic material such as rubber or soft synthetic resin so as not to damage the rim portion 10a of the wheel 10, and the opening formed in the bottom plate 2a of the movable guide rail 2 is preferable. When the bicycle wheel 10 is positioned on the portion 2b and the shaft 4b at the lower end of the swinging member 4 is lowered, the stopper member 5 moves toward the center line side of the movable guide rail 2 and moves from the side surface of the wheel 10. It is provided inside so as to lock the wheel 10, that is, at a position where it can come into contact with the rim portion 10a of the wheel 10 as shown by the alternate long and short dash line in FIG. The predetermined shape of the engaging portion 4a of the swinging member 4 means that the position of contact with the engaging piece 3a of the guide member 3 shifts upward as the shaft 4b at the lower end of the swinging member 4 descends. The movable guide rail 2 is inclined so as to be separated from the side plate 2c.

Reference numeral 6 denotes a spring for exerting a spring force for moving the stopper member 5 at the upper end of the swinging member 4 in the direction opposite to the stopper member 5 facing the swinging member 4. For example, as shown in the illustrated embodiment, the swinging member 4 has a spring force. There may be mentioned a tension coil spring, which is located below the shaft 4b at the lower end and is attached to opposite ends of the swinging member 4, respectively. Numeral 7 is for stopping the swinging of the swinging member 4 with the stopper members 5 at the upper ends opened when the bicycle wheel 10 is not located in the opening 2b of the movable guide rail 2. A stopper provided on the movable guide rail 2, and in the illustrated embodiment, the inner edge of the swinging member 4 is formed with a portion that abuts on the lower end of the side plate 2c of the movable guide rail 2, and this portion forms the stopper 7. Is made.

Numeral 8 is a stopper for stopping the movement of the swinging member 4 in the closing direction of the stopper member 5 facing it. In the illustrated embodiment, the movable guide rail is movable when the stopper member 5 is swung in the closing direction. It is provided on the swinging member 4 at a position where it abuts on the upper end portion of 2. Reference numeral 9 is mounted so that a contact portion 9a with the wheel 10 of the bicycle guided in the groove of the movable guide rail 2 can be inserted into the groove of the movable guide rail 2 from the opening 2b of the movable guide rail 2. It is a wheel receiver, and is preferably mounted on the shaft 4b at the lower end of the opposing swinging member 4, and further the bicycle wheel 10 guided in the groove of the movable guide rail 2 as in the illustrated embodiment. It is preferable that the contact portion 9a for contacting with is formed in a planar shape.

[0013]

[Action]

 The wheel retraction prevention device according to the present invention thus configured has a position where the wheel 10 should be placed when the bicycle wheel 10 is not located in the opening 2b in the groove of the movable guide rail 2. When the wheel bridge 9 is provided, the contact portion 9a with the wheel of the wheel bridge 9 is provided, and when the wheel bridge 9 is not provided, the lower end portion of the swinging member 4 is provided. It is inserted into the groove. Here, it is preferable that the wheel bridge 9 that acts to prevent the wheel 10 from being damaged is provided as described later. Therefore, the case where the wheel bridge 9 is provided will be described below.

In the state in which the wheel contact portion 9 a of the wheel bridge 9 is inserted in the groove of the movable guide rail 2 as described above, the stopper member 5 at the upper end of the swinging member 4 faces the stopper member 5 facing the stopper member 5. A spring force for moving the spring 6 in the opposite direction is applied by the spring 6 (in the embodiment shown in FIG. 1, the tension coil spring 6 is moved by the tension coil spring 6 at a position below the shaft 4b at the lower end of the rocking member 4. Since the spring force acts so as to attract each other), the swinging member 4 tries to swing around the shaft 4b at the lower end thereof, while the engaging piece 3a of the guide member 3 moves at the upper end. The stopper 7 locks the movement of the swinging member 4 in the direction in which the pad member 5 is pulled apart (hereinafter referred to as the opening direction), and the stopper 7 locks the upward movement of the shaft 4b at the lower end of the swinging member 4. As a result, the stopper members 5 provided at the upper end of the swinging member 4 are opened. Abutting portions 9a of the wheel of the wheel supports 9 with forming a is becoming a state of being inserted into the groove of the movable guide rail 2.

In this state, the wheel 10 of the bicycle is guided into the groove of the movable guide rail 2 and the contact portion with the wheel of the wheel bridge 9 located corresponding to the opening 2b formed near the rear end thereof. When placed on 9a, the weight of the bicycle causes the wheel bridge 9 to move downward, causing the shaft 4b at the lower end of the rocking member 4 to move downward, forming the rocking member 4 into a predetermined shape. A direction in which the stopper members 5 at the upper ends of the swinging members 4 move to the center line side of the movable guide rail 2 while the engaged portion 4a being engaged with the engaging piece 3a of the guide member 3 (hereinafter, (Close direction).

That is, the engaging portion 4a of the swinging member 4 moves upward as the position of contact with the engaging piece 3a of the guide member 3 increases as the shaft 4b at the lower end of the swinging member 4 descends. Since the movable guide rail 2 is formed so as to be inclined so as to be separated from the side plate 2c, when the shaft 4b at the lower end of the rocking member 4 descends, the engaging portion 4a is attached to the engaging piece 3a of the guide member 3. While engaging, the swing member 4 swings in the direction of closing the stopper members 5 at the upper end against the spring force of the spring 6 about the shaft 4b at the lower end of the swing member 4. At this time, when the bicycle wheel 10 is located on the contact portion 9a of the wheel bridge 9 with the wheel, the stopper member 5 is placed inside the wheel 10, that is, on the rim portion 10a of the wheel 10 as shown by the chain line in FIG. Since the wheel 10 is located at the abutting position, the wheel 10 is prevented from moving backward.

When parking the bicycle in the groove of the movable guide rail 2, first pull out the movable guide rail 2 inserted in the fixed guide rail 1 and tilt it so that the rear end is located below. Then, the front wheel of the bicycle is placed in the groove of the movable guide rail 2 and the bicycle is pushed up along the groove. At this time, there is no stopper above the rear end of the movable guide rail 2 to prevent the bicycle from retreating due to contact with the rear edge of the rear wheel of the bicycle. It can be easily guided into the groove of the movable guide rail 2.

In this way, the front wheel of the bicycle is in contact with the wheel of the wheel bridge 9 inserted in the groove of the movable guide rail 2 at the position of the opening 2b formed near the rear end of the movable guide rail 2. When placed on the bicycle, as described above, the weight of the bicycle lowers the contact portion 9a of the wheel receiver 9 with the wheel, and at the same time, the shaft 4b at the lower end of the swinging member 4 lowers to engage the guide member 3. While the engaging portion 4a is engaged with the joint piece 3a, the rocking member 4 acts on the shaft 4b at the lower end of the rocking member 4 against the spring force of the spring 6 in the direction of closing the stopper members 5 at the upper ends. Then, the stopper member 5 is positioned inside the front wheel of the bicycle. In this state, only the front wheel of the bicycle is guided in the movable guide rail 2, so if you push the bicycle further along the groove of the movable guide rail 2, the front wheel of the bicycle will move from the opening 2b to the groove of the movable guide rail 2. Since it moves to the bottom plate 2a and separates from the contact portion 9a of the wheel bridge 9 with the wheel, the rocking members 4 are separated from each other above the shaft 4b at the lower end of the rocking member 4 by the action of the spring 6. Direction, that is, the direction in which the stopper members 5 facing each other open, the rocking member 4 tries to swing about the pivot portion, but since the engaging portion 4a of the swinging member 4 is engaged with the engaging piece 3a of the guide member 3. In the illustrated embodiment, the shaft 4b at the lower end of the rocking member 4 rises and the wheel receiver 9 rises until the inner edge of the rocking member 4 contacts the lower end of the side plate 2c of the movable guide rail 2 forming the stopper 7, How the stopper material 5 separates from the rim portion 10a of the wheel 10 Move toward. Thus, when the front wheel of the bicycle is pushed further in the forward direction of the movable guide rail 2, the stopper members 5 are in an open state, so that the bicycle can be easily pushed up in the forward direction of the movable guide rail 2.

When the bicycle is further pushed along the groove of the movable guide rail 2 and the rear wheel is located on the contact portion 9a with which the wheel of the wheel bridge 9 abuts, the wheel of the wheel bridge 9 is again loaded due to the weight of the bicycle. Simultaneously with the lowering of the abutting portion 9a of the rocking member 4, the shaft 4b at the lower end of the rocking member 4 descends, and the rocking member 4 moves to the upper end while the engaging portion 4a is engaged with the engaging piece 3a of the guide member 3. The stopper member 5 is positioned inside the rear wheel of the bicycle by swinging around the shaft 4b at the lower end of the swing member 4 against the spring force of the spring 6 in the direction in which the stopper members 5 are closed. . When the bicycle tries to move backward in this state, the stopper member 5 contacts the rim portion 10a of the rear wheel to prevent the bicycle from moving backward. At this time, if the stopper 8 is provided, the movement of the swinging member 4 can be stopped in a closed state to a position where the stopper members 5 can come into contact with the rim portion 10a of the wheel 10, so that the stopper member 5 can be stopped. The same person can press and hold the spokes of the wheel 10 in the same state regardless of the weight of the bicycle.

Here, if the engaging piece 3a of the guide member 3 is constituted by a roller, the engaging piece 3a is engaged with the engaging portion 4a while the swinging member 4 moves. The frictional resistance between the 3a and the engaging portion 4a is small, and the rocking member 4 can be rocked smoothly. Further, if this roller is made of rubber or synthetic resin, a sound deadening effect can be obtained.

If the wheel receiver 9 on which the wheel 10 is mounted is separately attached to the shaft 4b at the lower end of the rocking member 4 with the wheel contact portion 9a, the rocking member 4 moves. However, since the contact portion 9a of the wheel bridge 9 with the wheel simply moves up and down without rotating, the friction resistance between the wheel contact portion 9a of the wheel bridge 9 and the wheel 10 is small and the wheel 10 is not damaged. If the contact portion 9a with the wheel is formed in a planar shape, the wheel 10 can be more effectively prevented from being damaged. In this way, with the rear wheel of the bicycle being prevented from retreating, the rear end of the movable guide rail 2 is lifted and pushed out to insert the movable guide rail 2 into the fixed guide rail 1 to complete the parking of the bicycle.

When the bicycle is carried out, first, the movable guide rail 2 on which the bicycle is parked is pulled out from the fixed guide rail 1 and is inclined so that the rear end is located below. At this time, the rear wheel of the bicycle is located on the contact portion 9a of the wheel bridge 9 with the wheel, and the stopper member 5 contacts the rim portion 10a of the wheel 10 to prevent the wheel 10 from retreating. Even if an impact occurs when the movable guide rail 2 is inclined, the wheel 10 is prevented from falling off the movable guide rail 2. Then, the state in which the backward movement of the wheel 10 is prevented is released. In order to cancel the state in which the wheel 10 is prevented from retreating, the wheel support 9 is raised by lifting the wheel 10, and the swinging member 4 is swung in the direction in which the opposing stopper members 5 open. .

That is, since the front wheel of the bicycle moves away from the abutment portion 9a of the wheel bridge 9 with the wheel, in the case of the illustrated embodiment, a force is exerted so that the lower end of the rocking member 4 under the shaft 4b pulls each other. Due to the spring force of the tension coil spring 6 which imparts the force, the swing member 4 tries to swing about the shaft 4b in the direction of opening the stopper members 5 above the shaft 4b at the lower end of the swing member 4. On the other hand, since the engaging portion 4a of the swinging member 4 is engaged with the engaging piece 3a of the guide member 3, the shaft 4b at the lower end of the swinging member 4 rises and swings with this rise. The member 4 swings so that the opposing stopper members 5 at the upper end portions are opened.

After the wheels 10 are slightly retracted with the stopper members 5 facing each other open, the bicycle is then retracted along the groove of the movable guide rail 2, and the front wheels of the wheel receiver 9 are moved. Since the front wheel is prevented from retreating by being located on the contact portion 9a with the wheel of the bicycle, the front wheel is lifted again and the stopper member 5 is kept open to retract the bicycle. At this time, since a stopper for preventing the bicycle from retreating due to contact with the rear edge of the rear wheel of the bicycle is not fixed above the rear end portion of the movable guide rail 2, the stopper members 5 are attached to each other. The bicycle can be easily carried out of the movable guide rail 2 by slightly lifting the front wheels and the rear wheels of the bicycle to a height at which the bicycle can be opened.

[0025]

[Effect of device]

 As described above in detail, the wheel retraction prevention device according to the present invention is in a state in which the stopper member that comes into contact with the rim portion of the wheel is closed only by positioning the bicycle wheel on the contact portion with the wheel receiving wheel. Since it is possible to prevent the wheel from moving backward, when the bicycle is guided along the groove of the movable guide rail, it is possible to easily move the bicycle forward and guide the bicycle in the groove of the movable guide rail. Later, the wheels can be reliably prevented from moving backward, and a stopper is installed above the rear end of the movable guide rail to prevent the bicycle from moving backward by making contact with the rear edge of the rear wheel of the bicycle. Since there is no need to fix it, the bicycle can be easily guided into the groove of the movable guide rail. Then, the stopper members will open only by slightly lifting the rear wheel or the front wheel that is placed on the abutment portion of the wheel bridge or on the lower end of the swing member, so that the bicycle can be easily carried out. You can

Further, when the wheel bridge is mounted on the shaft of the lower end of the swinging member and the contact portion with the wheel is formed in a planar shape, the wheel bridge contacts with the wheel. Even if the rocking member swings, the contact portion simply moves up and down without rotating, so that the wheel is not damaged by the friction between the wheel contact portion of the wheel bridge and the wheel. Since the shaft of the lower end portion of the rocking member is one shaft that rotatably connects the lower end portions of the rocking member to each other, or is mounted rotatably at different positions of the wheel receivers, respectively. It is possible to prevent rattling of the rear wheels of the vehicle which is locked by the stopper member by the swinging member swinging symmetrically. In addition, since the laborious welding work is performed only when the guide member is fixed to the movable guide rail, the assembling work is easy. Also, if a stopper is provided to stop the swinging of the swinging member in the closing direction of the stopper members, the swinging member moves with the stopper member closed to the position where it can contact the rim of the wheel. Since it is possible to stop the wheel, it is possible to prevent damage to the wheel as no extra force is applied to the wheel.

In this way, the wheel can be easily guided in the groove of the movable guide rail, and the backward movement of the bicycle can be reliably prevented, so that the bicycle can be safely carried in and out. Preventers are of great utility value.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a movable guide rail equipped with an embodiment of a wheel reverse movement preventing device according to the present invention.

FIG. 2 is a front cross-sectional explanatory view showing one embodiment of the wheel reverse movement preventing device according to the present invention.

3 is an explanatory side view of FIG.

FIG. 4 is a perspective view showing a part of a movable guide rail to which another embodiment of the wheel reverse movement preventing device according to the present invention is attached.

FIG. 5 is an explanatory longitudinal sectional view showing a conventional bicycle parking device.

[Explanation of symbols]

 1 Fixed guide rail 2 Movable guide rail 2a Bottom plate 2b Opening 2c Side plate 3 Guide member 3a Engaging piece 4 Swinging member 4a Engaging part 4b Shaft 5 Stopper member 6 Spring 7 Stopper 8 Stopper 9 Wheel support 9a Wheel contact Part 10 Wheel 10a Rim part 11 Stopper

Claims (6)

[Scope of utility model registration request] 1. A bottom plate (2a) near a rear end of a groove-shaped movable guide rail (2) movably inserted in a groove-shaped fixed guide rail (1) fixed at a predetermined height. An opening (2b) is formed in the guide member (3), which has ends fixed to both sides of the movable guide rail (2) corresponding to the opening (2b). (3a) is provided, and the engaging portion (4) that engages with the engaging piece (3a) of the guide member (3).
The rocking member (4) formed with a) is a guide member.
The lower end of the movable guide rail (2) is guided by both sides of the movable guide rail (2) in the groove direction, and the lower end of the movable guide rail (2) has an opening (2
b) Vertically movable and movable guide rail at position
The bicycle is mounted rotatably around an axis (4b) parallel to the groove direction of (2) and is guided to the upper end of each rocking member (4) in the groove of the movable guide rail (2). Stopper members (5) that come into contact with the rim portion (10a) of the wheel (10) are provided so as to face each other, and the swing member (4) has the swing member.
Stopper material facing the stopper material (5) at the upper end of (4)
A spring (6) for exerting a spring force for moving in the opposite direction to (5) is provided, and the upper end when the wheel (10) is not located at the opening (2b) of the movable guide rail (2). The movable guide rail (2) is a stopper (7) that keeps the swinging member (4) from swinging with the stopper member (5) of the section open.
A wheel retreat prevention device, which is provided in the. 2. The wheel retraction according to claim 1, wherein the engaging piece (3a) of the guide member (3) with which the engaging portion (4a) of the swinging member (4) engages is constituted by a roller. Prevention device. 3. A shaft (4b) at the lower end of the swinging member (4) is mounted such that it can be inserted into the groove from the opening (2b) of the movable guide rail (2). 3. The wheel retraction prevention device according to claim 1, which is mounted on a wheel bridge (9) that receives a bicycle wheel (10) guided in the groove of (2). 4. The shaft (4b) at the lower end of the rocking member (4) is a single shaft that rotatably connects the lower ends of the rocking member (4) to each other. Wheel reverse prevention device. 5. The wheel retraction prevention device according to claim 3, wherein the shafts (4b) at the lower end of the swinging member (4) are rotatably mounted at different positions on the wheel supports (9). 6. The contact part (9a) of the wheel support (9) for receiving the wheel (10) of the bicycle guided in the groove of the movable guide rail (2) with the wheel is planar. Any one up to 5
The wheel retreat prevention device according to the item.