JPS621867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-stage bicycle storage device.

In conventional two-tier storage devices, the upper bicycle suspension beam slides on a fixed beam and is pulled out, tilted down using the tip of the fixed beam as a fulcrum, and then the bicycle is mounted on it and the end of the beam is directly pushed up. It is structured so that it can be slid and pushed in and stored on a horizontal fixed beam. When storing your bicycle on the upper shelf,
He goes around the back of the bicycle suspension beam and pushes it up with both hands, but there is a walkway behind him and it gets in the way of other people passing by. In addition, in conventional devices, a balance weight is connected to a rope to maintain the balance of gravity and reduce the pushing force, but although the balance can be maintained only with respect to the device's own weight, the pushing force based on the weight of the bicycle is greatly reduced. Can not. In addition, there is a drawback that the rope is likely to get caught in the guide pulley and other accidents may occur.

When taking out a bicycle, the conventional device lowers the bicycle under its own gravity along an inclined bicycle suspension beam, so there is a risk of a sudden fall.

The purpose of the present invention is not only to simply arrange the bicycles on the ground plane, but also to store them in the upper rack in order to make effective use of the space above them, which has the same purpose as the conventional device, but to reduce the load lift. To provide a three-dimensional bicycle storage device which allows even women and children to easily put in and take out bicycles by converting the direct force of a conventional device into an indirect propulsion force by rotary drive.

Embodiments of the bicycle three-dimensional storage device of the present invention will be described in detail below with reference to the drawings.

In Fig. 1, a fixed beam 1 is supported in a cantilevered manner by a column 2 at a height that does not hinder the loading and unloading of bicycles stored on the ground.A bearing 3 is provided at the tip of the fixed beam 1, and The swinging beam 4 is supported by a fulcrum shaft 5 located at its midpoint, and can swing up and down about the fulcrum shaft 5. Note that a cross beam may be provided at the upper end of the support column 2, and a number of fixed beams may be attached to this single cross beam.
A differential roller beam 6 that slides in the axial direction is mounted on the top surface of the swing beam 4, and a bicycle suspension beam 7 that slides in the axial direction is further provided on the top of the differential roller beam 6. Two pairs of double-wheeled sliding rollers 8 are attached to the differential roller beam 6 at appropriate intervals, which stably support the bicycle suspension beam 7 and are also stably supported on the swinging beam 4, including the bicycle suspension beam 7. Both can freely slide axially. A series of roller chains 9 are hung on the differential roller beam 6 along the central axis of the beam between a driving sprocket wheel 10 and a driven sprocket 11 at regular intervals, the driving sprocket wheel 10 being driven by a propulsion handle 12. It is designed to do so. roller chain 9
is attached to the bicycle suspension beam 7 at a point a on the upper line and to the swinging beam 4 at a point b on the lower line with fixing bolts 13, respectively.

The differential roller beam 6 has upper press rollers 14 on both sides of the center axis to press both sides of the bicycle suspension beam 7 to prevent the beam 7 from jumping up, and lower press rollers 15 on both sides of the rear axis. Both sides of the swinging beam 4 are held up to prevent the differential roller beam 6 from jumping up against the beam 4, and a cam roller 21 is provided at the tip.
It is configured to roll along curved guide rails 22 and 23 fixed to the. A concave guide groove 16 the width of a bicycle wheel is formed on the upper side of the bicycle suspension beam 7, a guard 17 is provided to prevent the bicycle from tilting from side to side when the bicycle is loaded, and a balance weight 18 is installed at the front end of the swinging beam 4. Built-in.

A in the differential principle diagram shown in Fig. 2 indicates a state in which the beams are aligned and layered, and when the propulsion handle 12 is rotated clockwise, tension is generated to the left at the fixed point b. , Due to this reaction, the differential roller beam 6 slides to the right with respect to the swing beam 4, and tension is generated in the right direction at the fixed point a, causing the bicycle suspension beam 7 to slide to the right with respect to the differential roller beam 6. Glide. That is, Figure 2-B
As shown in FIG. 4 is twice as long as 4, and its degree of deviation is twice the driving linear speed of the roller chain 9.

Figure 3 shows that when the bicycle is stored in the upper rack, each beam 4, 6, and 7 is stretched to its maximum extent and is tilted down about the fulcrum shaft 5, so that the tip of the bicycle suspension beam 7 is brought into contact with the ground. Indicates the condition.

Next, the procedure for loading and unloading bicycles using the above-mentioned device will be explained.

When the front and rear wheels of the bicycle are loaded along the concave guide groove 16 on the bicycle suspension beam 7, which is already tilted down, and the propulsion handle 12 is rotated clockwise with the left hand, the bicycle moves forward and upward together with the bicycle suspension beam 7. The inclination angle automatically approaches horizontal due to the contact force between the cam roller 21 and the cam roller upper guide rail 22, and during this time, the gravity applied to the cam roller 21 is automatically reduced by the balance with the balance weight 18 of the swing beam 4. The bicycle is then placed in its normal horizontal storage position. To take out the bicycle, when the propulsion handle 12 is rotated counterclockwise with the left hand, the bicycle suspension beam 7 begins to extend, and at the same time the cam roller 2
1 and the cam roller lower guide rail 23, the inclination angle is gradually increased, and at the end point, the tip of the bicycle suspension beam 7 touches the ground, and the bicycle is ready to be carried out.

As mentioned above, the present invention utilizes a differential mechanism to automatically suppress the inclination angle of the beam, which can be extended and retracted by rotational drive, using a cam roller mechanism to maintain the stability of the bicycle and store and take it out in multiple stages, thereby reducing the risk of danger. It can be handled extremely safely. Particularly, in the present invention, a part of the propulsive force is extracted as a tilting force by applying a cam mechanism, and a single action of the rotary drive simultaneously pushes and pushes the bicycle up when ascending, and simultaneously pulls out and pushes down when descending, and the cam curve Depending on the selection, the bicycle is automatically restrained to be put in and taken out in the most stable condition, so even women and children can easily operate it.

Additional Relationships The present invention is an improved version of the bicycle multi-stage storage device disclosed in Patent Application No. 156839 filed in 1982.It is supported by a support and extends in the form of a cantilever at a height that does not hinder the loading and unloading of bicycles placed side by side on the ground. A fixed beam and a swinging beam that can be tilted freely using the tip thereof as a fulcrum are provided, and a differential roller beam is interposed between a bicycle suspension beam that slides in the axial direction on the swinging beam, and the differential roller beam is A series of built-in roller chains are hung between sprocket wheels spaced at regular intervals, one point of the upper line is fixed to the bicycle suspension beam, one point of the lower line is fixed to the swinging beam, and the sprocket wheels are driven. The provision of a differential mechanism that doubles the amount of propulsion deviation of the bicycle suspension beam with respect to the fixed beam is implemented as in the above-mentioned patent application.

[Brief explanation of the drawing]

The drawings show an embodiment of the bicycle multi-stage storage device according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a side view showing the sliding state of the suspension beam, and Fig. 3 is a bicycle storage device in the upper stage. A side view showing the state, Fig. 4 is Fig. 1A-
A sectional view taken along line A', Figure 5 is a sectional view taken along line B-B' shown in Figure 1,
Figure 6 is a sectional view taken along line C-C' in Figure 1, and Figure 7 is a cross-sectional view of Figure 1.
It is a sectional view taken along the line D-D' in FIG. 1 - Fixed beam, 4 - Swing beam, 6 - Differential roller beam,
7 ~ bicycle suspension beam, 21 ~ cam roller, 22,2
3 ~ Curved guide rail.

Claims (1)

[Claims] 1.Equipped with a fixed beam that extends like a cantilever and has a height that does not interfere with the loading and unloading of bicycles that are supported by pillars and placed side by side on the ground, and a swinging beam that can freely tilt with the tip of the fixed beam as a fulcrum. A differential roller beam is interposed between the bicycle suspension beam that slides in the axial direction, and a series of roller chains built into the differential roller beam are hung between the sprocket wheels at regular intervals. a differential mechanism fixed to a bicycle suspension beam, with one point of a lower line fixed to the swinging beam, and doubling the amount of propulsive displacement of the bicycle suspension beam with respect to the fixed beam by driving a sprocket wheel; and the differential roller beam. A multi-stage bicycle storage device equipped with a cam roller attached to the tip of the bicycle and a curved guide rail for the cam roller fixed to a fixed beam.