JPH05305885A - Suspension system of heavy load - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to fix the hook for suspending heavy objects in the lowered position. [Structure] A shaft 15 is rotatably supported on a support plate 12, two large and small pulleys 17 and 18 and a handle 26 are fixed to the shaft 15, and a pulley 21 from a large diameter pulley 17
A hook 22 for suspending the bicycle 5 is attached to a rope 19 pulled out through the rope 19, and the rope 20 pulled out from the small-diameter pulley 18 is connected to a cylinder 24 of a gas spring 23 which is extended and supported by the support plate 12 in the vertical direction. 1
The urging means 7 and 18 are rotated, the handle 26 is rotated to lower the hook 22, and the hook 22 can be fixed in the lowered position by the rotation driving means capable of restricting / releasing the rotation of the pulleys 17 and 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device for suspending and supporting a heavy object, and more particularly to a suspension device suitable for use in bicycle parking equipment.

[0002]

2. Description of the Related Art In recent years, abandoned bicycles in front of stations have become a big social problem, and it is urgent to secure a bicycle parking lot. By the way, in a conventional general bicycle parking lot, it is easy to equip a cradle for aligning bicycles. In such a mode, a space for the length of the bicycle must be prepared for one bicycle. As a result, it was difficult to secure a desired number of bicycles in the majority of bicycle parking lots where space was not available.

Therefore, recently, a device for parking a bicycle in a small space by suspending the bicycle has been developed. For example, in Japanese Utility Model Laid-Open No. Sho 63-192554, a bicycle is attached to a chain wound around a pair of upper and lower sprockets. A locking part (hook) for hooking the front wheel is provided, a weight that balances the weight of the bicycle is attached to the chain, a ratchet mechanism is attached to the sprocket, and the bicycle is hoisted by the ratchet mechanism. A device adapted to regulate descent is described.

[0004]

However, according to the device described in the above publication, when the bicycle is removed, the hooks are lifted upward by the weight, so that when the bicycle is to be newly lifted, There has been a problem in that operability is poor because the hook must be lowered by applying a correspondingly large force.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a heavy-weight suspending device with excellent operability, in which the hook can be fixed as it is at the lowered position. To do.

[0006]

In order to achieve the above-mentioned object, the present invention has a support plate suspended and supported by a hanger, a pulley rotatably supported by the support plate, and a pulley wound around the pulley. A rope having a hook for suspending a heavy load at one end, and a biasing means that is supported by the support plate and applies a rotational force in the winding direction of the hook to the pulley,
Rotation restricting means capable of restricting / releasing the rotation of the hook in the winding direction of the pulley with respect to the support plate is provided. In this case, as the urging means,
A second rope wound coaxially with the rope in the opposite direction and a gas spring for urging the second rope in the pulling-out direction can be used.

[0007]

In the suspending device for a heavy object constructed as described above, when the hook is wound down, the hook can be fixed at that position by the rotation restricting means. After removing the, the hook can be held in the lowered position, and then a new heavy object such as a bicycle can be immediately hung on the hook. Further, when a gas spring is used as the urging means, the speed at which the heavy object is lifted can be controlled gently, so that the safety is enhanced.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 to 4, 1 is a rail installed above a bicycle parking lot, 2 is a hanger on which wheels 3 are placed on the rail 1 so that the hanger can travel, and 10 is a hanger 2.
The suspension device according to the present invention is suspended and supported by the suspension device 10, and the suspension device 10 is such that the bicycle 5 is suspended and supported with its front wheel 5a facing upward. The suspension device 10 is provided with a pair of support plates 12 and 13 that are integrally coupled to each other using a plurality of connecting members 11 so as to have a predetermined interval. The pair of support plates 12 and 13 have an upper portion. A shaft member 14 provided laterally between
Thus, it can be detachably attached to the hanger 2.

As shown in FIG. 5, a hollow shaft 15 is rotatably supported on the pair of support plates 12 and 13 via a bearing 16 so as to be bridged. The shaft 15 has a pair of support plates 1
A large-diameter pulley 17 and a small-diameter pulley 18 are connected and fixed to each other by being located between 2 and 13, and a first rope 19 and a second rope 20 are respectively attached to both pulleys 17 and 18. It is wrapped around. One end of each of the first and second ropes 19 and 20 is fixed to the corresponding pulley and they are wound with their winding directions reversed. The first rope 19 wound around the large-diameter pulley 17 has its other end pulled out to the outside of the pair of support plates 12 and 13 via a pulley 21 rotatably attached to the upper part of the pair of support plates 12, 13. The front wheel 5a of the bicycle 5 at the end
A hook 22 for hooking is attached.

On the other hand, the second winding wound around the small diameter pulley 18
The rope 20 is connected at its other end to a cylinder 24 of a gas spring 23 supported by a support plate 13 on one side. The gas spring 23 is arranged so as to extend in the vertical direction by connecting the tip of the rod 25 to the support plate 13, so that the cylinder 24 to which the second rope 20 is connected moves vertically with respect to the rod 25. I'm supposed to get it. The gas spring 23 always generates a spring force (stretching force) in the stretching direction due to the gas pressure enclosed in the cylinder 24, and this stretching force causes the small-diameter pulley 18 to move through the second rope 20 to the small-diameter pulley 18 in FIG. When viewed, it acts so as to rotate in the clockwise direction, whereby the large-diameter pulley 17 also rotates in the same direction as the small-diameter pulley 18, and as a result, the hook 22 at the tip of the first rope 19 receives a force in the winding direction. become. When the hook 22 is pulled down (rolled down), the large-diameter pulley 17 and the small-diameter pulley 18
Is rotated counterclockwise as viewed in FIG. 1, the cylinder 24 of the gas spring 23 is moved downward via the second rope 20,
As a result, the total length of the gas spring 23 is shortened.

However, the restoring force of the gas spring 23 is set to be slightly larger than the weight of the bicycle 5 suspended on the hook 22. Hook, then hook
When 22 is released, the cylinder 24 of the gas spring 23 moves upward, the gas spring 23 operates toward the extension side, the hook 22 is wound up, and the bicycle 5 is suspended and held by the hook 22. Also, the shaft that has come out of one of the support plates 12
A handle 26 is attached to one end of 15. The handle 26 is formed to have a diameter considerably larger than that of the large-diameter pulley 17, and if the handle 27 is turned by holding the handle 27 fixed to a part of the outer circumference of the large pulley 17, both pulleys 17, 17
The 18 rotates easily, the gas spring 23 is easily shortened against the extension force thereof, and the hook 22 is wound down.

Further, as shown in FIG. 5 and FIG. 6, a pin 28 is used on one of the support plates 12 as a brake shoe.
29 is installed. The brake shoe 29 includes an L-shaped back plate 30 and a pad 31 joined to the back plate 30 and capable of contacting the inner peripheral surface of the large-diameter pulley 17, and fixed to the pin 28 with a nut 28a. ing.
The pin 28 is slidably and immovably fitted in an inclined long hole 32 formed in the support plate 12. The slanted long hole 32 is a handle
When viewed from the mounting direction of 26, it is formed in the lower right direction (Fig. 6). Therefore, when the pin 28 is moved to the right side as seen in Fig. 6, the pad 31 of the brake shoe 29 is attached to the inner peripheral surface of the large diameter pulley 17. When the pin 28 is pushed to the left side as seen in FIG. 6, the brake shoe 29 is displaced inwardly of the large-diameter pulley 17 and the pad 31 causes the large-diameter pulley 17 to move.
The braking force is not generated because the braking force is slightly separated from the inner peripheral surface of the.

The pin 28 has a shaft 15 at one end.
The brake lever 33 is slidably fitted in a long hole 34 of the brake lever 33 which is rotatably supported. The long hole of this brake lever 33
The reference numeral 34 extends in a direction intersecting with the inclined elongated hole 32 of the support plate 12 (FIG. 6). Therefore, when the brake lever 33 is swung, the pin 28 moves in the elongated hole 34 of the brake lever 33. It will move laterally in the inclined long hole 32. That is, the brake shoe 29 can move between a braking position where the pad 31 is pressed against the inner peripheral surface of the large-diameter pulley 17 and a non-braking position where the pad 31 is separated from the inner peripheral surface according to the swing of the brake lever 33. become. As shown in FIG. 3, the brake lever 33 is normally urged to the right side when viewed from the mounting direction of the handle 26 by the spring (tensile spring) 35 having one end coupled to the support plate 12, and the brake shoe 29 is It is always positioned at the braking position.

Further, a push rod 36 is provided inside the hollow of the shaft 15.
Is slidably fitted. As shown in FIG. 5, the push rod 36 has an elongated hole 37 extending in the axial direction at one end that is pulled out from the shaft 15 to the side where the handle 26 is attached, and the elongated hole 37 is fixed to the shaft 15. Boss portion 26a of the handle 26
A pin 38 penetrating through is slidably inserted. That is, the push rod 36 is restricted from rotating with respect to the shaft 15 by the pin 38 and can rotate integrally with the shaft 15, while the play of the elongated hole 37 with respect to the pin 38 causes the shaft 15 to rotate.
It can slide in the axial direction. Also shaft
A stopper plate 39 is integrally connected to the other end of the push rod 36 that has come out of the handlebar 26 in the direction opposite to the side where the handle 26 is attached. As shown in FIG. 4, the stopper plate 39 has a plurality of holes 40 in the circumferential direction thereof, and the support plate 13 is provided with a stopper pin 41 that can be fitted into the hole 40. The stopper plate 39 is pushed into the stopper pin 41 by pushing the push rod 36.
Is separated from the support plate 12 and 13 in this state, the push rod 36
And the shaft 15 can rotate together. on the other hand,
When the push rod 36 is pulled from this state, the stopper pin 41 is fitted into one of the holes 40 of the stopper plate 39, and the shaft is inserted through the push rod 36.
15 and the support plate 13 (12) are integrated, and the rotation of the shaft 15 is restricted. A handle 42 for facilitating the operation is attached to one end of the push rod 36.

The operation of the suspension device constructed as above will be described below.

In use, the handle 26 is previously rotated so that the hook 22 is wound down, that is, the gas spring 23 is compressed, and the push rod 36 is pulled to open the hole of the stopper plate 39.
Insert the stopper pin 41 into one of the 40
Leave 17 and 18 in a fixed state. In this state, the hook 22 is hooked on the front wheel 5a of the bicycle 5, and then the push rod 36 is pushed in to remove the stopper plate 39 from the stopper pin 41. At this time, since the urging force of the spring 35 is applied to the pin 28 via the brake lever 33, the pad 31 of the brake shoe 29 is attached to the large diameter pulley 17
Since it is pressed against the inner peripheral surface of the pulley 17, the pulley 17 (18) does not rotate. Next, the brake lever 33 is swung clockwise against the biasing force of the spring 35 when viewed from the mounting side of the handle 26.
Then, the pad 31 of the brake shoe 29 is slightly separated from the inner peripheral surface of the large-diameter pulley 17, and the gas spring 23 extends.
The extension force of the gas spring 23 is transmitted to the small-diameter pulley 15 via the second rope 20, and the small-diameter pulley 18 rotates clockwise as seen in FIG. As a result, the large-diameter pulley 17 also rotates in the same direction as the small-diameter pulley 18, and the hook 22 is wound up via the first rope 19, and finally the bicycle 5 is suspended and supported on the hook 22 as shown in FIG. Will be done.

When the bicycle 5 is lifted to a proper height, the force pushing the brake lever 33 is released, and the pad 31 of the brake shoe 29 is urged by the urging force of the spring 35.
Is pressed against the inner peripheral surface of the large-diameter pulley 17 again, and the pulley 17,
The rotation of 18 stops, and the climbing of the bicycle 5 also stops. Even if the brake lever 33 is released in this state, the braking of the pulleys 17 and 18 is maintained, but for safety, the push rod 36 is pulled so that the stopper pin 41 is fitted into one of the holes 40 of the stopper plate 39. To do.

In order to lower the bicycle, the push rod 36 is pushed in to remove the stopper pin 41 from the hole 40 of the stopper plate 39, and the bicycle 5
Just pull it down. At this time, a force is applied from the large-diameter pulley 17 to the brake shoe 29 so that the pad 31 moves away from the inner peripheral surface of the large-diameter pulley 17, so that the brake shoe 29
The braking by 29 is almost useless, and the hook 22 descends smoothly. When the front wheel 5a of the bicycle 5 is in contact with the floor, the first rope 19 is in a tensioned state. Therefore, it is necessary to loosen the first rope 19 to remove the hook 22 from the bicycle 5. However, at this time, since the bicycle 5 is unloaded, it becomes difficult to pull the first rope 19 against the extension force of the gas spring 23. Therefore, in this case, the handle 26 is rotated to rotate the pulleys 17 and 18, and
Loosen the rope 19 and remove the hook 22 from the bicycle 5. When the bicycle 5 is removed from the hook 22 and the handle 26 is opened, the extension force of the gas spring 23 hooks the first rope 19 into the hook.
22 Winding force is applied, but in this state the spring 35
As a result, the pad 31 of the brake shoe 29 is pressed against the inner peripheral surface of the large-diameter pulley 17, so that the first rope 19 can be maintained in a stretched state and the lifting operation of the next bicycle can be started immediately. Also, after removing the bicycle 5, the brake lever 33
Even if you wind up the hook 22 by operating the
The hook 22 can be easily unwound by turning the 26.

In this embodiment, since the handle for turning the pulley is provided, the handle can be turned to lower the hook with a small force if desired, and the operability is improved. Also, two support plates 1 arranged with a predetermined interval.
Since it is equipped with 2 and 13, the front wheel 5a of the bicycle 5 can be inserted between the two support plates 12 and 13 to suppress the sway of the bicycle, and the rotating body such as a pulley can be shielded from the outside. It has the advantage of being safe to operate. Further, since the gas spring 23 is used, the expansion thereof is slow, and the bicycle 5 is not rapidly lifted, so that the safety is high. If a gas spring including a valve mechanism that narrows the fluid passage on the extension side is used as the gas spring, as disclosed in Japanese Utility Model Laid-Open No. 54-149025, the lifting speed of the bicycle 5 becomes slower. , Will be more secure.

In the present invention, the support plate is composed of a single plate, one pulley is used instead of the two large and small pulleys 17 and 18, or a tension spring or the like is used instead of the gas spring 23. It is possible to use the urging means of. Further, in the above-described embodiment, two mechanisms, that is, a mechanism having the brake shoe 29 and a mechanism having the stopper plate 39 are used as the means for restricting the rotation of the pulleys 17 and 18. Either one of the two mechanisms may be used. Further, this rotation restricting means may have another structure instead of the above structure. Furthermore, although the above embodiments have been described for bicycles, the present invention can of course be applied to other heavy objects besides bicycles.

[0022]

As described above in detail, according to the suspension device for heavy objects according to the present invention, the hook can be fixed at the winding position by the rotation restricting means, so that the hook can be wound down. Operation is unnecessary and operability is improved. Further, when a gas spring is used as the urging means, the speed at which the heavy object is lifted can be controlled gently, so that the safety is enhanced.

[Brief description of drawings]

FIG. 1 is a front view showing the structure of a suspending device for heavy objects according to the present invention with a part thereof opened.

FIG. 2 is a side view of the suspension device.

FIG. 3 is a front view of the suspension device viewed from one side.

FIG. 4 is a front view of the suspension device viewed from the opposite side to FIG. 3.

FIG. 5 is an enlarged cross-sectional view showing a part of the suspension device.

6 is a phase cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 2 Hanger 5 Bicycle 12 Support plate 13 Support plate 15 Shaft 17 Large pulley 18 Small pulley 18 Rope 20 Rope 21 Pulley 22 Hook 23 Gas spring 26 Handle 29 Brake shoe 31 Pad 33 Brake lever 36 Push rod 39 Stopper plate 41 Stopper pin

Claims (2)

[Claims] 1. A support plate which is hung and supported by a hanger, a pulley which is rotatably supported by the support plate, and a rope which is wound around the pulley and has a hook for hanging a heavy object at one end thereof. Energizing means supported by the support plate to apply a rotational force in the winding direction of the hook to the pulley, and rotation restricting means capable of restricting / releasing rotation of the pulley in the winding direction of the hook with respect to the support plate. A suspending device for heavy objects, comprising: 2. The biasing means comprises a second rope coaxially wound with the rope in the opposite direction, and a gas spring for biasing the second rope in a pulling direction. The suspension device for heavy objects according to claim 1.