JP2003341569A - Bicycle parking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bicycle parking device having a simple structure capable of energizing turning of a movable frame and easily assembled at a low cost. <P>SOLUTION: At the rear end of a fixed frame 2, a compression coil spring 10 is housed in the longitudinal direction in a case 11, a roller 13 is fitted through a movable seat 12 on the rear end side. A lever 14 turning within a turning plane of the movable frame 2 is supported on the fixed frame 2 rather closer to the rear end side than the roller 13, a roller 17 for receiving the movable frame 3 drawn from the fixed frame 2 is fitted rather closer to the rear end side than the supporting point, and a cam face 16 for applying compressive displacement to the coil spring 10 through the roller 13 when turned downward is provided rather closer to the front end side than the supporting point. By this simple structure, the movable frame 3 turned downward to place the bicycle thereon can be energized in the direction of turning upward by pressing force of reaction of the coil spring 10 through the lever 14. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle parking device for parking a bicycle in two upper and lower stages.

[0002]

2. Description of the Related Art In a bicycle parking device for parking a bicycle in two stages, a fixed frame is supported at a predetermined height from the floor surface in a substantially horizontal direction in the front-rear direction. A movable frame that moves forward and backward is rotated downward while being pulled out to the rear end side of the fixed frame, and a bicycle to be parked is mounted, and the movable frame on which the bicycle is mounted is rotated substantially horizontally upward. After that, it is often used to push the fixed frame to the front end side to store the bicycle on the upper side.

In this type of bicycle parking apparatus, a movable frame rotated downward is rotated upward by using a coil spring, a gas spring or the like so that the movable frame carrying a bicycle can be easily rotated upward. There is a device provided with a means for urging in the direction.

[0004] As a bicycle parking apparatus provided with such a rotation urging means, for example, there are those described in Japanese Patent Publication No. 2539316 and Japanese Patent Publication No. 2736513.

In the former, as shown in FIG. 7, a roller 53, which serves as a fulcrum of rotation of a movable frame 52, is attached to the rear end of a horizontal fixed frame 51, and the front end of the movable frame 52 serves as a gas spring 54. Two levers 55a, 55
The gas spring 5 is connected to the moving carriage 56 via b.
The movable frame 52 is urged by the extension force of No. 4 in the direction to rotate upward. The movable carriage 56 has a pair of front and rear wheels 57, and moves forward and backward along the fixed frame 51 together with the movable frame 52.

In the latter, as shown in FIG. 8, a roller 53, which serves as a fulcrum of rotation of the movable frame 52, is attached to the rear end of the fixed frame 51, and a swing frame 58 is attached to the front end of the movable frame 52 by a pivot 59. The movable frame 52 is pivotally mounted so as to be swingable, and is connected to the swing frame 58 by a tension coil spring 60 at a position rearward of the pivot 59, and the movable frame 5 is pulled by the tension force of the tension coil spring 60.
2 is biased in the direction of rotating upward. The swing frame 58 has a pair of wheels 61, and is configured to move forward and backward along the fixed frame 51 together with the movable frame 52.

Further, Japanese Patent Publication No. 2628675 discloses that
There is described a bicycle parking apparatus in which a tension coil spring as a rotating biasing means of the movable frame 52 is directly connected to a fixed frame without providing the movable carriage members such as the movable carriage 56 and the swing frame 58.

[0008]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention A bicycle parking apparatus in which movable carriage members which move forward and backward along the fixed frame are provided, and the rotation urging means of the movable frame is attached to these movable carriage members, Since the mounting structure of the dynamic urging means becomes complicated and it is necessary to separately provide the guide portion for the movable carriage member on the fixed frame, the manufacturing cost becomes high and the number of parts is increased, resulting in troublesome assembling. There is such a problem.

Further, the bicycle parking apparatus in which the tension coil spring as the above-mentioned rotation urging means is directly connected to the fixed frame,
Although the device is designed to move the connecting part of the coil spring to the fixed frame, the tensile displacement of the coil spring when pulling out the movable frame from the fixed frame becomes extremely large,
There is a problem that a large force is required to rotate the movable frame downward. In addition, since the long coil spring moves together with the movable frame, it is easily damaged.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bicycle parking apparatus which can urge the rotation of a movable frame with a simple structure and which is inexpensive and easy to assemble.

[0011]

In order to solve the above-mentioned problems, the present invention supports a fixed frame at a predetermined height position from the floor surface in a substantially horizontal direction in the front-rear direction, and the fixed frame is supported by the fixed frame. The movable frame that moves forward and backward along the fixed frame is pulled out to the rear end side, and the bicycle is parked by rotating it downward. After that, a means for pushing in the front end side of the fixed frame to store the bicycle on the upper side, and urging the movable frame on which the bicycle is mounted by rotating downward to rotate upward is provided. In the bicycle parking apparatus, a compression spring member that generates a pressing reaction force by applying a compressive displacement to the working end is attached to the fixed frame with its working end facing the rear end side of the fixed frame, and the movable frame is rotated. Movement A lever that rotates inside is rotatably supported on the fixed frame on the rear end side of the working end of the compression spring member, and on the lever, on the rear end side of its support point, from the fixed frame. Provided with a movable frame receiving portion for receiving the drawn movable frame, abutting against the working end of the compression spring member at the front end side of the support point, and imparting a compression displacement to the compression spring member when rotating downward A cam surface is provided for urging the movable frame rotated downward in the direction of rotating it upward.

That is, the working end of the compression spring member is attached to the fixed frame toward the rear end side, and the lever that rotates in the rotation surface of the movable frame is arranged at the rear end side of the working end of the compression spring member. A movable frame receiving portion, which is rotatably supported by the fixed frame, is provided on the rear end side of the supporting point of the lever and receives the movable frame pulled out from the fixed frame, and the compression spring member is provided on the front end side of the supporting point. By providing a cam surface that comes into contact with the working end of the movable member and imparts a compressive displacement to the compression spring member when the movable frame rotates downward, the movable frame rotated downward has a simple structure. The compression spring member is urged in the direction of upward rotation by the pressing reaction force.
A compression coil spring, a compression gas spring, or the like can be used as the compression spring member.

By making the arm length from the support point of the lever to the movable frame receiving portion longer than the arm length from the support point to the cam surface, a compact one with a small reaction force for pressing the compression spring member. Can be

The cam surface of the lever is provided with a recess in which the working end of the compression spring member is locked at at least one of the top dead center and the bottom dead center of the rotation of the lever so that the lever is rotated together with the lever. By fixing the rotating position of the moving movable frame at the rotating top dead center or bottom dead center, it is possible to easily take the bicycle in and out of the bicycle parking device.

By providing the movable frame receiving portion of the lever with a roller which is brought into rolling contact with the bottom surface of the movable frame, the movable frame is pulled out from the fixed frame,
It can be pushed into the fixed frame smoothly.

By providing a roller to be brought into rolling contact with the cam surface of the lever at the working end of the compression spring member, the working end of the compression spring member can be smoothly rolled along the cam surface.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. This bicycle parking device is for parking a bicycle in two stages, and as shown in FIG.
A movable frame that supports an upper parking bicycle fixed frame 2 horizontally in the front-rear direction at the upper ends of columns 1 of a predetermined height that are erected on the floor, and moves forward and backward along the fixed frame 2. As indicated by the alternate long and short dash line in the figure, while the fixed frame 2 is pulled out to the rear end side, the fixed frame 2 is rotated downward to set the rear end, and the rear end is set to the movable frame. A bicycle can be placed on 3. The movable frame 3 on which the bicycle is placed is horizontally rotated upward, is pushed into the front end side of the fixed frame 2, and the bicycle is stored on the upper side. A fixed frame 4 for parking the lower bicycle is attached to the lower end of the column 1.

Wheel stoppers 5a and 5b for fixing the front and rear wheels of the bicycle are provided on the upper surface side of the movable frame 3, and the movable frame 3 is pulled out from the fixed frame 2 at the rear end of the movable frame 3 to rotate. A handle 6 for moving is provided. Further, the lower stationary frame 4 is also provided with a wheel stopper 5a for fixing the front wheel of the bicycle.

As shown in FIGS. 2 and 3, the fixed frame 2 is formed by forming guide rails 7 having an inward U-shaped cross section on both side walls of channel steel, and the movable frame 3 is provided at the rear end thereof. Rollers 8 serving as pivot points are attached to both side walls so as to extend therethrough. Further, the movable frame 3 is formed of a channel steel having a hat-shaped cross section, and a pair of wheels 9 are attached to the outside of both side walls on the front end side thereof. The movable frame 3 has its front end side guided by the guide rails 7 by wheels 9, and has its rear end side supported by a rotatable roller 8 and moves back and forth along the fixed frame 2.

A case 11 for accommodating a compression coil spring 10 as a compression spring member in the front-rear direction is attached to the bottom of the rear end of the fixed frame 2. A movable seat 12 having a core portion 12a fitted into the inner diameter of the spring 10 is covered, and a rotatable roller 13 serving as an operating end of the coil spring 10 is attached to the outside of the bottom of the movable seat 12.

A lever 14 that pivots in the pivot plane of the movable frame 3 is pivotally attached to a bracket 15 on the rear end side of the roller 13 of the fixed frame 2, and the roller 13 is attached to the front end side of the lever 14. Is formed with a cam surface 16 which is in rolling contact with, and a rotatable roller 17 for receiving the bottom of the movable frame 3 pulled out from the fixed frame 2 is attached to the rear end side. On the rear end side of the case 11, the cam surface 1
A lid member 19 having a guide plate 18 for guiding the front end portion of the lever 14 formed with 6 into the case 11 is attached.

As shown in FIG. 4, the cam surface 16 of the lever 14 is formed by an arcuate surface having a center point O on the lower rear side of the rotation support point P on which the lever 14 is pivotally mounted. Point P
The distance d from is longer as it goes downward. Therefore, as shown by the chain line in the figure, when the lever 14 rotates downward, the roller 13 rollingly contacting the cam surface 16 is pushed forward. Further, at the upper and lower ends of the cam surface 16, there are a horizontal turning top dead center position of the lever 14 shown by a solid line in the drawing and a turning bottom dead center position of the lever 14 shown by a dashed line in the drawing. Recesses 16a and 16b are formed in which the roller 13 is fitted and locked. In addition,
The arm length from the rotation support point P to the mounting position of the roller 17 that receives the movable frame 3 is set to the rotation support point in order to amplify the push-up force when returning the movable frame 3 on which the bicycle is mounted, which will be described later, to the horizontal state. It is made considerably longer than the arm length from P to the cam surface 16.

Next, a procedure for parking a bicycle on the upper side of the above-described bicycle parking apparatus will be described with reference to FIG. First,
As shown in FIG. 5A, the movable frame 3 is pulled out to the rear end of the fixed frame 2. A stopper 7a is provided at the rear end of the guide rail 7 of the fixed frame 2, and the wheel 9 on the front end side of the movable frame 3 is stopped by this stopper 7a. At this time, the roller 13 at the working end of the compression coil spring 10 is fitted into the concave portion 16a of the cam surface 16 of the lever 14, and the movable frame 3 received at the bottom by the roller 17 of the lever 14 is held horizontally. It

After that, by pulling the movable frame 3 by holding the handle 6, the concave portion 1 of the cam surface 16 is pulled.
The roller 13 locked by 6a is released, and the movable frame 3 is rotated downward. When the movable frame 3 is rotated until the rear end of the movable frame 3 is set, the roller 13 is fitted into the recess 16b below the cam surface 16 as shown in FIG.
The movable frame 3 is held at the bottom dead center rotation position. At this time, the roller 13 is pushed forward by the cam surface 16 and the compression displacement is applied to the compression coil spring 10.

In this state, the bicycle is placed on the movable frame 3, and the handle 6 is held and the movable frame 3 is lightly lifted upward, whereby the roller 1 locked in the recess 16b of the cam surface 16 is held.
3 is disengaged, the lever 14 is rotated upward by the pressing reaction force of the compression coil spring 10, and the movable frame 3 received by the roller 17 of the lever 14 is also rotated upward, as shown in FIG.
Return to the horizontal state shown in. By pushing the movable frame 3 returned to the horizontal state toward the front end side of the fixed frame 2, the bicycle is stored on the upper side of the bicycle parking apparatus. Since the roller 17 of the lever 14 is in rolling contact with the bottom of the movable frame 3, the movable frame 3 is smoothly pushed into the fixed frame 2.

FIG. 6 shows a modification of the compression spring member. In this modified example, a compressed gas spring 20 is used as a compression spring member, and a roller 13 as its working end is attached to the tip of a rod 20a directed toward the rear end side of the gas spring 20. Other parts are the same as those of the embodiment shown in FIG.

In the above-described embodiment, a rotatable roller is provided at the working end of the compression spring member so as to be in rolling contact with the cam surface of the lever. However, if this working end is formed of a member having a small friction coefficient. The rollers may be omitted.

[0028]

As described above, the bicycle parking apparatus of the present invention is
The action end of the compression spring member is attached to the fixed frame toward the rear end side, and the lever that rotates in the rotation surface of the movable frame rotates to the fixed frame at the rear end side from the operation end of the compression spring member. A movable frame receiving part that receives the movable frame pulled out from the fixed frame is provided on the rear end side of the supporting point of this lever, and it contacts the working end of the compression spring member on the front end side of the supporting point. Since the cam surface is provided that gives a compression displacement to the compression spring member when contacted and rotated downward, with a simple structure,
A movable frame that rotates downwards and puts a bicycle,
Since the pressing reaction force of the compression spring member can urge it in the direction of upward rotation via the lever, the bicycle parking device can be made inexpensive. In addition, since this bicycle parking device has a small number of parts, it is easy to assemble at the installation site or the like.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a bicycle parking device.

FIG. 2 is a vertical cross-sectional view of a cutout showing an enlarged main part of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a front view showing the lever of FIG.

5A and 5B are notched vertical sectional views for explaining a bicycle parking procedure.

FIG. 6 is a cutaway vertical sectional view showing a modification example of FIG.

FIG. 7 is a longitudinal sectional view showing an enlarged main part of a conventional bicycle parking apparatus.

FIG. 8 is a longitudinal sectional view showing an enlarged main part of another conventional bicycle parking apparatus.

[Explanation of symbols]

1 prop 2 fixed frame 3 movable frames 4 fixed frame 5a, 5b Wheel stopper 6 handles 7 guide rails 7a stopper 8 roller 9 wheels 10 coil spring 11 cases 12 movable seat 12a core 13 Roller 14 lever 15 bracket 16 Cam surface 16a, 16b recess 17 Laura 18 Information board 19 Lid member 20 gas spring 20a rod

Claims (5)

[Claims] 1. A movable frame that supports a fixed frame substantially horizontally in the front-rear direction at a predetermined height position from the floor surface and that moves forward and backward along the fixed frame is provided on the rear end side of the fixed frame. Place the bicycle that will be parked by rotating it downward while it is pulled out, rotate the movable frame on which the bicycle is mounted approximately horizontally, and then push it toward the front end of the fixed frame to move the bicycle to the upper stage side. And a means for urging the movable frame, on which the bicycle is placed and which is rotated downward, to be rotated upward, in the bicycle parking apparatus. A compression spring member that generates a pressing reaction force when applied is attached with its working end facing the rear end side of the fixed frame, and a lever that rotates within the rotation plane of the movable frame is a working end of the compression spring member. Yo The rear end side of the movable frame is rotatably supported by the fixed frame, and the lever is provided with a movable frame receiving portion on the rear end side of the supporting point for receiving the movable frame pulled out from the fixed frame. A movable surface rotated toward the front side of the support point is provided with a cam surface that is in contact with the working end of the compression spring member and imparts a compression displacement to the compression spring member when rotating downward. A bicycle parking apparatus, characterized in that the bicycle is urged in a direction of rotating the bicycle upward. 2. The bicycle parking apparatus according to claim 1, wherein an arm length from a support point of the lever to the movable frame receiving portion is longer than an arm length from the support point to the cam surface. 3. The cam surface of the lever is provided with a recess for locking the working end of the compression spring member at at least one of the top dead center and the bottom dead center of the rotation of the lever. Bicycle parking device described in. 4. The bicycle parking apparatus according to claim 1, wherein the movable frame receiving portion of the lever is provided with a roller which is brought into rolling contact with a bottom surface of the movable frame. 5. A roller which is brought into rolling contact with the cam surface of the lever is provided at the working end of the compression spring member.
The bicycle parking apparatus according to any one of 1 to 4.