JP2656912B2 - Safety device for three-dimensional bicycle parking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a three-dimensional bicycle parking system (specifically, a two-stage type) for stopping and storing a bicycle in a three-dimensional manner in order to effectively use space.

[0002]

2. Description of the Related Art In a conventional three-dimensional bicycle parking apparatus, when a bicycle parked on an upper stage is moved up and down, a slide rack provided at an upper portion is moved up and down manually.

[0003]

The height of the upper part is about 1.5 m, and a conventional three-dimensional bicycle parking apparatus which raises and lowers a slide rack disposed on the upper part manually requires a large operation force. And it was dangerous.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the conventional three-dimensional bicycle parking system, and to provide a human-powered assistance and safety when a bicycle parked on the upper stage is raised and lowered. It is to provide a device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a rack gear, comprising a piston which is urged by a spring in a return direction and has a rack gear partially reciprocally movable. A first pinion gear meshing with the first pinion gear is rotatably mounted in the cylinder, and a rotation shaft of the first pinion gear projects outside the cylinder. When the spring moves in the return direction of the piston by the spring, the main flow path is set by the check valve. When the piston is opened and the fluid in the cylinder moves freely from the front to the rear in the moving direction of the piston, and when the piston moves in the opposite direction (direction against the spring), the main flow path is closed by the check valve and the cylinder is closed. A hydraulic damper, which moves the fluid in the piston at a predetermined speed from a front surface to a rear surface in a moving direction of a piston via a bypass with an adjusting valve, at the upper part of a two-stage type bicycle parking machine A second pinion gear is fixed to a rotation shaft of the damper, a sector gear meshing with the second pinion gear is rotatably supported by a support shaft, and a support arm is integrated with the sector gear. And a rotating roller is attached to the tip of the support arm, the roller is always brought into contact with the lower surface of the slide rack, and the lower surface of the slide rack is supported by the roller. The return direction of the piston of the hydraulic pressure damper is set by the spring, and the return end of the piston is set to the rising end position of the slide rack.

[0006]

[Function] When the bicycle is parked on the upper part, the slide rack is pulled out from the slide rack receiving stand, its tip is lowered to the ground by its own weight and grounded, and the rear end of the slide rack is engaged with the slide rack receiving stand. Hold the slide rack in an inclined state. When the slide rack is pulled out, the lower surface of the slide rack is supported by the roller at the tip of the support arm, so that the frictional resistance can be reduced and the slide rack can be pulled out lightly. When the tip of the slide rack is lowered to the ground, the sector gear integrated with the support arm rotates the second pinion gear.
At this time, the rotation direction of the second pinion gear is set to the direction in which the piston of the fluid pressure damper moves against the spring, and the main flow path is closed by the check valve, and the bypass having the adjustment valve is provided. Since the fluid in the cylinder is moved through the path, the impact of the tip of the slide rack on the ground can be reduced and the slide rack can be gently lowered. And
This state is a state in which the spring is compressed and the restoring force is accumulated for the fluid pressure damper.

On the other hand, when the bicycle parking operation on the slide rack is completed, the leading end of the slide rack is lifted and pushed onto the slide rack receiving stand. At this time, the lower surface of the slide rack is supported by a support arm, on which the restoring force of the spring of the fluid pressure damper is supported from the piston via the rack gear, the first pinion gear, the second pinion gear, and the sector gear. Acting in the direction of pushing the tip of the arm upward, the lifting force at the tip of the slide rack can be reduced and assisted. When the slide rack is pushed onto the slide rack receiving table, a roller is attached to the tip of the support arm that supports the lower surface of the slide rack, so that frictional force can be reduced and the slide rack can be pushed lightly.

The same applies to the case of taking out a bicycle parked on the upper stage of a three-dimensional bicycle parking machine.

[0009]

FIG. 1 is a schematic side view of a three-dimensional bicycle parking apparatus according to the present invention when the upper bicycle is lifted and lowered, and FIG. 2 is a diagram illustrating the three-dimensional bicycle parking apparatus according to the present invention when the upper bicycle is parked. FIG. 3A is an enlarged side view showing the relationship between the fluid pressure damper and the support arm, FIG. 3B is its bottom view, and FIGS. 4A and 4B are fluid pressure dampers. 3A is a vertical sectional side view showing the internal structure of FIG. 3A, wherein FIG. 3A shows a state of a support arm at a rising end position, and FIG.

In FIGS. 1 and 2, reference numeral 1 denotes a lower rack of a three-dimensional bicycle parking machine, 2 denotes a column integrally erected from one end of the lower rack 1, and 3 denotes an upper slide rack receiving stand.
The lower rack 1 is horizontally supported on a support 2. The lower rack 1, the support 2, and the upper slide rack cradle 3 are substantially U-shaped when viewed from the side.

A slide rack 4 is detachably mounted on the upper slide rack receiving base 3. The front rack 5a of the bicycle 5 is provided on the slide rack 4 and the lower rack 1.
And a bifurcated holder 6 for standing and holding the rear wheel 5b
a and 6b are installed. Upper slide rack cradle 3
Is such that the front side in the pull-out direction of the slide rack 4 is shortened, and the length in the depth direction is about 2/3 of the length in the depth direction of the slide rack 4 mounted thereon. A support arm 8 is attached to the shortened lower surface on the front side via a fluid pressure damper 7.

A roller 9 is rotatably attached to the tip of the support arm 8, and the roller 9 supports the lower surface of the slide rack 4. A sector gear 10 is integrally fixed to the base end of the support arm 8. The sector gear 10 is attached to a bracket 11 on a part of the side surface of the hydraulic damper 7 via a support shaft 12 as shown in FIG. It is pivotally mounted.

The hydraulic damper 7 is, as shown in FIG.
A cylinder 7a is housed in the cylinder 7a so as to be reciprocally movable, and is always urged and pressed in a return direction by a spring 7b.
A piston 7d partially having a rack gear 7c, and a first piston rotatably mounted in the cylinder 7a via a rotary shaft 7e and meshed with the rack gear 7c.
A pinion gear 7f, and the first pinion gear 7
f, and a second pinion gear 13 is fixed to the rotating shaft 7e.
A pinion gear 13 is meshed with the sector gear 10.

When the spring 7b moves the piston 7d in the returning direction, the fluid pressure damper 7 opens the main flow path 7g to freely move the fluid 7h in the cylinder 7a from the front to the rear in the moving direction of the piston 7d. The above piston 7d
During the movement in the opposite direction (the direction against the spring 7b), the main flow path 7g is closed and the fluid 7h in the cylinder 7a is moved from the front to the rear in the moving direction of the piston 7d via the bypass passage 7j with the adjusting valve 7i. A check valve 7k for moving at a predetermined speed is incorporated in the main flow path 7g.

The upward rotation of the support arm 8 is set to the returning direction of the piston 7d of the fluid pressure damper 7 by the spring 7b, and the returning end of the piston 7d is set to the rising end position of the slide rack 4. . 4A shows the position of the rising end of the support arm 8, and FIG. 4B shows the position of the falling end of the support arm 8. FIG.

The three-dimensional bicycle parking apparatus according to the present invention has the above-described configuration. Next, a handling operation when the bicycle 5 is parked on the upper stage will be described. First, the slide rack 4 is pulled out from the slide rack receiving stand 3, its tip is lowered to the ground by its own weight and grounded, and the rear end of the slide rack 4 is locked and supported by the support shaft 3 a of the slide rack receiving stand 3. 4 is held in an inclined state.

Since the lower surface of the slide rack 4 is supported by the roller 9 at the tip of the support arm 8 when the slide rack 4 is pulled out, frictional resistance is reduced and the slide rack 4 can be pulled out lightly. . When the leading end of the slide rack 4 is lowered to the ground, the sector gear 10 integrated with the support arm 8 rotates the second pinion gear 13. At this time, the rotation direction of the second pinion gear 13 is such that the piston 7 d of the fluid pressure damper 7 is
b, the main flow path 7g is closed by the check valve 7k, and the fluid 7h in the cylinder 7a is moved through the bypass path 7j provided with the regulating valve 7i. Therefore, the tip of the slide rack 4 can be gently lowered by relaxing the impact on the ground. This state is a state in which the spring 7b is compressed and the restoring force is accumulated for the fluid pressure damper 7.

On the other hand, when the bicycle 5 is parked on the slide rack 4, the leading end of the slide rack 4 is lifted and pushed onto the slide rack receiving stand 3. At this time, the lower surface of the slide rack 4 is supported by the support arm 8,
The restoring force of the spring 7b of the hydraulic pressure damper 7 is applied to the tip of the support arm 8 via the rack gear 7c and the first pinion gear 7f from the piston 7d and the second pinion gear 13 and the sector gear 10 from the rotary shaft 7e. In the direction of pushing up the slide rack 4, and can reduce and assist the lifting force of the tip of the slide rack 4. When the slide rack 4 is pushed onto the slide rack receiving base 3, the roller 9 is attached to the tip of the support arm 8 that supports the lower surface of the slide rack 4, so that frictional force is reduced and lightened. You can push it.

The same applies to the case of taking out the bicycle 5 parked on the upper stage of the three-dimensional bicycle parking machine.

The hydraulic damper 7 may be either hydraulic or pneumatic. The speed at which the slide rack 4 descends can be freely set by operating the adjusting valve 7i provided in the bypass path 7j. Further, in order to increase the energy restoring force of the spring 7 b in the fluid pressure damper 7, a reduction gear device can be provided between the second pinion gear 13 and the sector gear 10 for installation.

[0021]

According to the present invention, when the slide rack is lowered, the impact can be eliminated gently by the resistance of the spring and the fluid pressure damper effect by limiting the moving speed of the fluid in the cylinder. When the slide rack is lifted, the lifting force can be reduced by using the stored and restoring force of the spring 7b in the fluid pressure damper 7, and the assist and safety of human power when the bicycle parked on the upper stage is lifted and lowered. Can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a state in which a bicycle in an upper section of a three-dimensional bicycle parking apparatus according to the present invention is raised and lowered.

FIG. 2 is a schematic side view showing a state in which a bicycle in an upper section of the three-dimensional bicycle parking apparatus of the present invention is parked.

FIG. 3A is an enlarged side view showing a relationship between a fluid pressure damper and a support arm, and FIG. 3B is a bottom view thereof.

FIGS. 4A and 4B are longitudinal sectional side views showing the internal structure of the fluid pressure damper, where FIG. 4A is a state of a rising end position of a support arm, and FIG. Indicates the status.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower rack 2 Column 3 Upper slide rack receiving stand 4 Slide rack 5 Bicycle 6a, 6b Holder 7 Fluid pressure damper 8 Support arm 9 Roller 10 Sector gear 12 Support shaft 13 Second pinion gear 7a Cylinder 7b Spring 7c Rack gear 7d Piston 7e Rotation Shaft 7f First pinion gear 7g Main flow path 7h Fluid 7i Adjustment valve 7j Bypass path 7k Check valve

Claims (1)

(57) [Claims] A first pinion gear meshed with the rack gear is rotatably mounted in a cylinder, the piston being partially urged by a spring in a return direction by a spring and having a rack gear in a part thereof. When the rotation shaft of the first pinion gear projects outside the cylinder, the main flow path is opened by the check valve to move the fluid in the cylinder from the front to the rear in the piston movement direction when the spring moves in the return direction of the piston. When the piston moves in the opposite direction (the direction against the spring), the main flow path is closed by the check valve and the fluid in the cylinder moves from the front to the rear in the piston movement direction. A hydraulic damper, which is moved at a predetermined speed via the bypass passage, is disposed on an upper slide rack cradle of a two-stage type bicycle parking device, and a rotation shaft of the damper is provided on the rotation shaft of the damper. A two-pinion gear is fixed, a sector gear meshing with the second pinion gear is rotatably supported on a support shaft, a support arm is integrally fixed to the sector gear, and a rotating roller is mounted on a tip end of the support arm. The roller is always in contact with the lower surface of the slide rack, the lower surface of the slide rack is supported by the roller, and the upward rotation of the support arm is set to the return direction by the spring of the piston of the fluid pressure damper; A return end of the slide rack at a rising end position of the slide rack.