JP6922119B1 - Bicycle parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a light bicycle from jumping up or a heavy bicycle from suddenly falling even if the weight of the bicycle fluctuates by transferring a rack on which a bicycle is mounted up and down in a two-stage bicycle parking device. Provides a bicycle parking device that does not require a long time with a large force to lift the rack. SOLUTION: In a mechanism for transferring a rack on which a bicycle is mounted up and down, a spring having no buffer function and a member having a buffer function are used together. A spring having no buffer function includes a metal spring, and a member having a buffer function includes a fluid spring such as a gas spring and a damper having no spring force. [Selection diagram] Fig. 1

Description

The present invention relates to a bicycle parking device for storing a bicycle, and in particular, in order to mount the bicycle on the rack and store the bicycle in two upper and lower stages, the first method of transferring the rack without the bicycle up and down. The present invention relates to a bicycle parking device having a bicycle transfer mechanism and a second bicycle transfer mechanism for transferring a rack with a bicycle up and down.

In recent years, bicycles have been diversified, such as general bicycles (about 15 to 20 kg), relatively lightweight bicycles such as sports type and children's bicycles (less than 15 kg), three-seater bicycles and bicycles with electric assist function. With the widespread use of relatively heavy bicycles (20 kg or more), a bicycle parking device that can store bicycles of different weights has become necessary.
Moreover, in order to park a large number of bicycles, a bicycle parking device in which a rack on which the bicycles are mounted moves up and down and has two upper and lower bicycle parking spaces is common.

In order to park the bicycle in two stages, the bicycle is not installed, considering that the force required to move the rack with the bicycle up and down and the rack without the bicycle to move up and down are different. A first bicycle transfer mechanism that moves the rack up and down in the state and a second bicycle transfer mechanism that moves the rack up and down with the bicycle mounted are required.
As a matter of course, in the first bicycle transfer mechanism, only a light rack needs to be moved up and down, which is a simple mechanism.

On the other hand, in the second bicycle transfer mechanism, it is necessary to devise a device capable of exerting the force required to move the rack on which the bicycle is mounted up and down. Moreover, now that the weight of bicycles is diversifying, it must be a second bicycle transfer mechanism that has no problem whether a heavy bicycle or a light bicycle is installed.

Conventionally, various springs have been used in the bicycle transfer mechanism. There are metal springs (coil springs, constant load springs, leaf springs, etc.), non-metal springs (rubber dampers, oil dampers, etc.), fluid springs (gas springs, oil springs, etc.). In particular, various springs have been adopted for the second bicycle transfer mechanism in consideration of the weight of the rack when the bicycle is mounted.

In a bicycle parking device, when an empty rack without a bicycle is normally raised to the upper stage, a human force is applied to the first bicycle transfer mechanism to raise the empty rack to the lower stage at the ground level. Take it down to. Mount the bicycle on the unloaded rack. Then, the rack on which the bicycle is mounted is lifted by applying human force to the second bicycle transfer mechanism and raised to the upper stage. When taking out the bicycle, if the rack on which the bicycle is mounted is placed on the upper tier, the rack is lowered together with the rack to the lower tier, and the bicycle is taken out from the bicycle parking device.

In the first bicycle transfer mechanism for moving an empty rack up and down in this series of operations, it is desirable that the rack can be raised with as little human force as possible. On the other hand, the second bicycle transfer mechanism for raising a heavy rack on which a bicycle is mounted has also been devised so that it can be lifted with the power of as small a person as possible.

Conventionally, in the first bicycle transfer mechanism, a metal spring such as a constant load spring having a spring force that can balance the weight of the rack to some extent is often used. This makes it possible to move an empty rack up and down with a small force of a person.
Further, as the second bicycle transfer mechanism, when a metal spring such as a constant load spring having a spring force that allows the total weight of the bicycle and the rack, which are expected to be frequently used, to be balanced to some extent is used. was there.

However, when a metal spring is used as the second bicycle transfer mechanism, when a light bicycle is mounted, if a metal spring having a spring force assuming a heavy bicycle is used, the light bicycle will rise with the rack. In addition, it is dangerous because the bicycle may jump up due to the strong spring force. Also, when descending, if a heavy bicycle is mounted on a spring with a spring force that is supposed to be a light bicycle, the rack and the bicycle will fall vigorously to the ground.

As the second bicycle transfer mechanism of the bicycle parking device in consideration of these problems, fluid springs such as gas springs and oil springs, which are springs having a buffer function, have been conventionally adopted instead of metal springs. This buffer function prevents the rack on which the bicycle is mounted from being suddenly moved up and down. As described above, when it is recognized that there is a problem with the metal spring, only the fluid spring having a buffer function is adopted without using the metal spring.
For example, in a gas spring, the gas sealed between the cylinder and the piston sliding in the cylinder functions as a buffer during expansion and compression. The same applies to oil springs.

However, if only a fluid spring, which is a spring having a buffer function such as a gas spring or an oil spring, is adopted as the spring of the second bicycle transfer mechanism, the spring of the bicycle can be suppressed because the buffer function is provided. , The drag force of the spring due to gas, oil, etc. was too large, and it became difficult for both the rack to rise and fall suddenly, and it was necessary for a person to lift and lower the rack with a large force. Further, in the fluid spring, since only the movement amount of the piston corresponds to the movement amount of the rack, even if a person tries to raise the rack with a large force, the movement speed is small. Therefore, when a person tries to raise the rack on which the bicycle is mounted, there is a problem that the rack must be lifted with a large force for a long period of time.

The following patent documents are available as prior art documents using a metal spring such as a constant load spring, a gas spring, or the like as a bicycle transfer mechanism between the upper and lower stages of a two-stage bicycle parking device.

Patent No. 6183873

In Patent Document 1, as described in the [0012] column of the specification, the first urging member that moves the rack on which the bicycle is not mounted up and down (corresponding to the "first bicycle transfer mechanism" of the present application). Constant load springs, fluid springs (gas springs, oil springs, etc.), etc. are used individually or in combination. On the other hand, as described in column [0036], a gas spring is adopted as a second urging member (corresponding to the "second bicycle transfer mechanism" of the present application) that moves the rack on which the bicycle is mounted up and down. ..

As described above, in Patent Document 1, a constant load spring or a gas spring is used alone or in combination as the first urging member in order to move the rack on which the bicycle is not mounted up and down. When the bicycle is not mounted, as a matter of course, the phenomenon such as the bicycle jumping, which is the subject of the present invention, does not occur. Therefore, even if a constant load spring and a gas spring are used in combination, the flip-up of the bicycle, which is the subject of the present invention, is not taken into consideration. The gas spring is used to suppress vibration noise.

In Patent Document 1, only a gas spring is used as the second urging member in order to transfer the rack on which the bicycle is placed, and the rack is not used in combination with a metal spring such as a constant load spring. The reason is that, as described in [0101] of the specification of Patent Document 1, in consideration of the large weight of the rack on which the bicycle is mounted, "by the gas sealed in the sealed space inside the cylinder of the gas spring". The function of pulling the total load of the bicycle 110 and the lower trolley 20 in the actual vehicle state and the cushioning function at the upper stop position are exhibited, and the ascending speed of the rack even if the individual weight of the bicycle mounted on the rack changes. It stabilizes and suppresses the generation of vibration noise, and enables stable and quiet rack climbing during operation. " This is because we decided to use only the gas spring because we thought that it would be possible to suppress the generation of noise and to raise the rack in a stable and quiet manner.
However, the present inventor has a strong buffer function when only the gas spring is used as in Patent Document 1, so that when a person performs an operation of lifting or lowering the rack, the operation must be performed with a large force. , I noticed a problem that I had to operate for a long time because of the low movement speed.

In the conventional bicycle parking device, there are a bicycle parking device that takes into consideration that bicycles having different weights can be mounted and a bicycle parking device that does not take into consideration.
In the case of a bicycle parking device that does not consider the difference in the weight of the bicycle, a predetermined spring force is used in the second bicycle transfer mechanism that transfers the rack on which the bicycle is mounted up and down, as is often seen in the past. Only metal springs with Metal springs do not have a buffer function to cushion the impact. Therefore, even though a light bicycle is installed, using a metal spring with a strong spring force does not solve the problems such as the light bicycle jumping onto the rack and the heavy bicycle dropping suddenly.

On the other hand, in the case of a bicycle parking device in consideration of the difference in the weight of the bicycle, as shown in Patent Document 1, in the second bicycle transfer mechanism, only the spring having a buffer function is used in order to prevent the problem of the bicycle jumping up. For example, as described above, only fluid springs such as gas springs and oil springs have been used instead of metal springs that do not have a buffer function.
However, as described above, the present inventor solves the problem of jumping up by the buffer mechanism when only the fluid spring is used, but the buffer function is too effective and a person moves the rack up and down with a very large force. I noticed the problem that I had to continue to lift the rack with a large force for a long time.

Therefore, according to the present invention, the bicycle is less likely to bounce, and even when a rack carrying a heavy-weight bicycle is transferred up and down, it is not necessary for a person to assist with a large force, and the bicycle can be parked at an appropriate up and down transfer speed. It is an object of the present invention to provide a wheel device.

Furthermore, an object of the present invention is to provide a bicycle parking device having a structure that can easily cope with a change in the weight of a parked bicycle.

Therefore, the present invention has solved the problem by using a spring having no buffer function and a member having a buffer function in combination in the second bicycle transfer mechanism that moves the rack on which the bicycle is mounted up and down. be.
The member having a buffer function may be a member having a repulsive spring force, for example, a fluid spring such as a gas spring, or a member having no repulsive spring force, for example, an oil damper. It may not have a spring force that repels when it is stretched or compressed.

The first feature of the present invention is
With stanchions
A bicycle parking device consisting of a rack that moves up and down along the support column by a spring to mount a bicycle.
When the bicycle is not mounted on the rack, the first spring supports the vertical movement of the rack.
When the bicycle is mounted on the rack, the first spring, the second spring having no buffer function, and the spring force of the first and second springs cause the bicycle to move up and down suddenly. Also used with a third spring that has a buffer function to suppress
The first spring is a constant load spring whose one end side is fixed to the upper part of the support column and the other end side is fixed to the upper carriage installed in the rack.
One end of the second spring is fixed to the lower part of the support column, and the other end side is fixed to the upper part of the support column in the middle of the first wire and the first wire via a first pulley. It is a constant load spring fixed to the lower carriage that is detachably connected to the lower part of the support.
The third spring is a fluid spring composed of a cylinder, a piston sliding in the cylinder, and a fluid sealed between the cylinder and the piston.
One end side of the cylinder is fixed at the top of the column and has a second pulley on the piston on the other end side of the cylinder.
A second wire, one end of which is fixed to the upper part of the support, is fixed to the lower carriage via the second pulley and a third pulley fixed to the upper part of the support.
The load applied to the piston causes the piston to slide in the cylinder, so that the fluid acts as a buffer that suppresses the sudden vertical movement of the rack.
A bicycle parking device characterized by that.
Is.

According to the first feature of the present invention, in a bicycle parking device in which bicycles of different weights can be mounted, a buffer is used in a second transfer mechanism for transferring the rack on which the bicycle is mounted when the bicycle is mounted. By using a constant load spring that has a function and a fluid spring that does not have a buffer function together, it prevents the bicycle from jumping up when transferring a light bicycle up and down, and also to the ground when transferring a heavy bicycle up and down. It is possible to provide a bicycle parking device that prevents a sudden drop and has an appropriate vertical transfer speed.

The second feature of the present invention is
The lower trolley is connected to the lower end of the support until the bicycle is mounted on the rack, and when the bicycle is mounted on the rack, it can move up and down, and when the bicycle is removed from the rack, the lower end of the support is again. Connected to the part
The bicycle parking device according to claim 1.
Is.

According to the second feature of the present invention, in addition to the effect of the first feature, the lower carriage is under the support. Since the timing of attaching and detaching at the end is clarified, there is an effect that the object of the present invention can be realized more reliably.

The third feature of the present invention is
The second spring and the third spring are covered by a cover that is outside the strut and is removable from the strut.
The bicycle parking device according to claim 1 or 2.
Is.

According to the third feature of the present invention, a constant load spring which is a second spring for moving the rack on which the bicycle is mounted up and down and a fluid spring which is a third spring are outside the support and can be attached to and detached from the support. By being covered with a cover, the second and third springs can be replaced at any time according to the fluctuation of the weight of the mounted bicycle, so that the spring can be replaced in response to the fluctuation of the weight of the bicycle. It is possible to provide a bicycle parking machine that is convenient for replacement and maintenance.

According to the present invention, in a bicycle parking device for carrying bicycles of various weights, it is possible to prevent the bicycle from jumping up when a relatively light bicycle is transferred up and down, and to the ground when a heavy bicycle is transferred up and down. It is possible to provide a bicycle parking device that prevents a sudden fall and transfers the bicycle at an appropriate speed.

Conventionally, as a mechanism for moving the rack on which the bicycle is mounted up and down, a technology that uses a metal spring such as a coil spring or a constant load spring alone, or a spring that has a buffer function such as a gas spring is used instead of the metal spring. The technology to do it was also known. That is, a metal spring or a spring having a buffer function was used alone. However, the present inventor has first noticed the problem of using these metal springs and gas springs alone in the second bicycle transfer mechanism that transfers the rack on which the bicycle is mounted up and down.
That is, when a rack equipped with a light bicycle is used alone with a metal spring having a strong spring force, the bicycle jumps up, and when a heavy bicycle is used, a sudden drop occurs. Also, when the gas spring was used alone, I noticed the problem that a person had to move the rack up and down with a large force over a long period of time due to the size of the buffer function. This is a big issue in the situation where bicycles of various weights have to be parked as in recent years.

Then, the present inventor has searched for various solutions and repeated experiments to provide a spring and a buffer function that do not have a buffer function in the second bicycle transfer function that mounts a bicycle and moves the rack up and down. It was found that the above-mentioned problems can be solved at once by using the members having the same members.

Even if a person skilled in the art is aware of the above-mentioned problems, he / she has not been able to find any solution so far, so at first glance, it is a technology that seems to be easy and easy to come up with. However, the fact that it was not actually found as a solution indicates that the present invention cannot be said to be an invention that can be easily inferred from the prior art.

FIG. 1 is a perspective view showing a bicycle parking device according to an embodiment of the present invention. FIG. 2 is a perspective view of the bicycle parking device shown in FIG. 1 as viewed from the opposite side. FIG. 3a is an explanatory view showing a lower constant load spring, a gas spring, a lower carriage, and a pulley of the second bicycle transfer mechanism according to the invention when the rack is at the lowermost end of the column. FIG. 3b is an explanatory view showing a second bicycle transfer mechanism when the rack on which the bicycle is mounted is located at the uppermost end of the support column. FIG. 4 is a perspective view showing the positional relationship between the support column of the bicycle parking device shown in FIG. 1 and the back cover covering the lower constant load spring and the gas spring. 5a, 5b, 5c, and 5d are views of a state in which a rack without a bicycle is at the uppermost end, as viewed from the directions A, B, C, and D shown in FIG. FIG. 6 is a partial horizontal cross-sectional view of the bicycle parking device shown in FIG. 1 as viewed from above the rack. FIG. 7 is a partial horizontal cross-sectional view of the bicycle parking device shown in FIG. 1 as viewed from above the stopper B at the bottom of the column. 8a, 8b, 8c, and 8d are views of a state in which a rack without a bicycle is in a descending position, as viewed from the directions A, B, C, and D shown in FIG. 9a, 9b, 9c, and 9d are views of the state in which the rack is located at the lowermost end and the bicycle is being mounted, as viewed from the directions A, B, C, and D shown in FIG. 10a, 10b, 10c, and 10d are views of the state in which the bicycle is mounted, as viewed from the directions A, B, C, and D shown in FIG. 11a, 11b, 11c, and 11d are views of a state in which the bicycle is mounted on the rack and the rack is ascending, as viewed from the directions A, B, C, and D shown in FIG. 12a, 12b, 12c, and 12d are views of the state in which the rack on which the bicycle is mounted is at the uppermost position, as viewed from the directions A, B, C, and D shown in FIG. 13a, 13b, 13c, and 13d are views of the state in which the rack on which the bicycle is mounted is descending from the directions A, B, C, and D shown in FIG. 14a, 14b, 14c, and 14d are views of a state in which the rack on which the rack is mounted is at the lowermost end and the bicycle is being unloaded, as viewed from the directions A, B, C, and D shown in FIG. Is. 15a and 15b are explanatory views showing a second bicycle transfer mechanism in the case of an arrangement configuration in which the gas spring extends upward.

FIG. 1 is a perspective view showing an embodiment of a bicycle parking device according to the present invention. FIG. 2 is a perspective view of the bicycle parking device shown in FIG. 1 as viewed from the opposite direction.
In FIG. 1, the main components of the bicycle parking device are a base 1 that supports the entire bicycle parking device on the ground, a support 2 fixed to the base 1, a rack 3 that is moved up and down along the support 2, and a bicycle. A first bicycle transfer mechanism that transfers the rack 3 without the bicycle up and down, and a second bicycle transfer mechanism that transfers the rack 3 with the bicycle up and down. Usually, these components are made of metal.

In FIGS. 1 and 2, as the first bicycle transfer mechanism, one end is connected to the upper end of the support column 2 and the other end is locked to the upper carriage 4 installed in the rack 3. 5 is the main component. As the rack 3 moves up and down, the upper constant load spring 5 expands and contracts, the upper constant load spring 5 expands when the rack 3 descends, and the upper constant load spring 5 contracts when the rack 3 rises.
As described above, the upper constant load spring 5 functions as a component of the first bicycle transfer mechanism when the rack 3 on which the bicycle is not mounted moves up and down, and the rack 3 on which the bicycle is mounted functions. It also functions as a component of the second bicycle transfer mechanism when it moves up and down. The reason is that the upper constant load spring 5 always expands and contracts together when the rack 3 moves up and down regardless of whether or not the bicycle is mounted. Since the upper constant load spring 5 has a spring force, it acts as a driving force when moving the rack 3 up and down in both the case of the first bicycle transfer mechanism and the case of the second bicycle transfer mechanism. do.
In this embodiment, the upper constant load spring 5 is used, but the spring as the first bicycle transfer mechanism is not limited to this, and may be another metal spring such as a coil spring, and further, a gas spring. It can also be a fluid spring such as an oil spring or an oil spring.

The fact that a person does not need to apply too much force to the rack 3 for a long period of time in order to move the rack 3 up and down without a bicycle mounted on the bicycle is a bicycle parking machine. It is desirable from the viewpoint of convenience in use, and it is desirable from the viewpoint of safety that the rack 3 does not move up and down vigorously due to the force applied by a person.
Therefore, it is important that the upper constant load spring 5 as the first bicycle transfer mechanism moves up and down the rack 3 on which the bicycle is not mounted with a small force, and for that purpose, it substantially corresponds to the weight of the rack 3. It is desirable to adopt the upper constant load spring 5 having a spring force. That is, it is desirable that the spring force is balanced so that the rack 3 can be stopped at any position without applying human force.

When a person moves the rack 3 on which the bicycle is mounted, the problem is solved by the second bicycle transfer mechanism. The essence of the present invention is to solve the problem by the second bicycle transfer mechanism, and what kind of configuration the second bicycle transfer mechanism has is important.

Next, in FIGS. 1 and 2, the components of the second bicycle transfer mechanism for moving the rack 3 on which the bicycle is mounted up and down will be described. As the second bicycle transfer mechanism, in addition to the upper constant load spring 5 that also functions as the first bicycle transfer mechanism, at least the lower constant load spring 6, the gas spring 7, and the upper end of the support column 2 are fixed. The two pulleys 8a and 8b, the lower carriage 9, and the wires 10a and 10b connecting them correspond to each other.

One end of the lower constant load spring 6 is fixed to the lower end of the support column 2, and the other end of the lower constant load spring 6 is fixed to the lower end of the support column 2 via a wire 10a and a pulley 8a fixed to the upper end portion of the support column 2. It is locked to the lower bogie 9 which is detachably installed in the.

The gas spring 7 is filled in the cylinder 11, the piston 12 sliding in the cylinder 11, the pulley 13 fixed to the end of the piston 12, and the internal space surrounded by the cylinder 11 and the piston 12. It consists of. If a force in the direction of compressing the gas acts on the piston 12, the gas spring 7 contracts. At that time, the gas is compressed in the cylinder 11 and acts as a buffer.
On the contrary, when the piston 12 is released from the contracted state, the gas spring 7 acts as a spring force in the extending direction, and also serves as a buffer in this case. Due to the buffer-like function of the gas spring 7 during these movements, the rack 3 is prevented from jumping up and the bicycle is prevented from jumping up, and the rack 3 is also prevented from jumping down and colliding with the base 1.

The gas spring 7 not only acts as a buffer, but also has a spring force as a normal spring. That is, it serves as a buffer when the gas spring 7 operates in the contracting direction, but conversely, it serves as a force such as lifting the rack 3 when the gas spring 7 operates in the extending direction.
Therefore, if the lower constant load spring 6 and the gas spring 7 are used in combination, the spring force can be added and the spring force can be suppressed. However, if only the gas spring 7 is used, the rack 3 becomes difficult to move when the spring force is increased.

In this way, the second bicycle transfer mechanism is a combination of two types of springs, the lower constant load spring 6 and the gas spring 7, so that the force to be applied by a person can be small, and the gas spring 7 is like a buffer. The action can prevent the rack 3 and the bicycle from suddenly moving up and down. At the same time, the rack 3 can be transferred at an appropriate speed by the spring force that the gas spring 7 has to extend and the lower constant load spring actually extending.

These states will be described with reference to the explanatory views of FIGS. 3a and 3b.
When the bicycle is not mounted on the rack 3, the state of the second bicycle transfer mechanism shown in FIGS. 3a and 3b does not change regardless of the position of the rack 3. Therefore, FIGS. 3a and 3b are schematic views showing a second bicycle transfer mechanism equipped with a bicycle.
FIG. 3a schematically shows a second bicycle transfer mechanism when the bicycle is mounted on the rack 3 and the rack 3 is located at the lowermost end of the support column 2.
The lower end of the lower constant load spring 6 is connected to the base 1 and the upper end is connected to the wire 10a in the extended state. The wire 10a is locked to the lower carriage 9 via the pulley 8a.
One end of the cylinder of the gas spring 7 is connected to the upper end of the support column 2. A pulley 13 is provided on the piston 12 at the other end of the cylinder 11, and the gas spring 7 extends downward when it is extended. One end of the wire 10b is connected to the upper end 14 of the support column 2, and the other end is connected to the pulley 13 connected to the piston 12 of the gas spring 7 and the pulley 8a connected to the upper end of the support column 2. It is locked to the lower carriage 9.

The lower carriage 9 is detachably locked to the lower end of the support column 2 by a stopper B described later. The stopper B has a structure in which the rack 3 is not released unless the rack 3 is at the lowermost position and a bicycle is mounted.
Therefore, unless a bicycle is mounted, even if the rack 3 moves up and down, the only forces involved in the up and down movement of the rack 3 are the human force and the spring force of the upper constant load spring 5. Therefore, it is only the upper constant load spring 5 that controls the movement of the rack 3 on which the bicycle is not mounted.

In FIG. 3a, which shows that the rack 3 on which the bicycle is not mounted is at the uppermost end of the support column 2, the lower constant load spring 6 is in the extended state and the gas spring 7 is in the contracted state.

On the other hand, FIG. 3b shows a state in which the rack 3 on which the bicycle is mounted is raised to the uppermost end of the support column 2.
That is, the stopper B is automatically released by mounting the bicycle after the rack 3 on which the bicycle is not mounted descends to the lowermost end of the support column 2, and the stopper is installed at the tip of the rack 3 by a person. If a person operates the A release lever (not shown) to manually release the rack 3, the rack 3 can be raised. FIG. 3b shows a state in which the rack 3 on which the bicycle is mounted is transferred to the uppermost end of the support column 2 through such an operation. Stopper A and stopper B will be described in detail with reference to FIG. 5a.

In this way, when both the stopper A and the stopper B are released and the lower carriage 9 rises, the rack 3, the upper constant load spring 5, the lower constant load spring 6 and the gas splint 7 are interlocked. .. Then, the contracting spring force of the upper constant load spring 5 acts, and the contracting spring force of the lower constant load spring 6 and the extending spring force of the gas spring 7 also act to raise the lower carriage 9. At that time, since the upper carriage 4 is configured to ride on the lower carriage 9, as a result, the lower carriage 9, the upper carriage 4, the rack 3, and the bicycle are raised at the same time.

In this way, when the rack 3 on which the bicycle is mounted moves up and down, the first bicycle transfer mechanism (upper constant load spring 5) and the second bicycle transfer mechanism (upper constant load spring 5, lower constant load spring 6) are used. , Gas spring 7, pulley 13, wire 10a, 10b, lower trolley 9) function, and the lower constant load spring 6 and gas spring 7 of the second bicycle transfer mechanism exert spring force on each other, and gas. The effect of the present invention can be obtained by the spring 7 performing a buffer-like function.

In this way, the rack 3 on which the bicycle is mounted moves up and down by the spring forces of the upper constant load spring 5, the lower constant load spring 6, and the gas spring 7, and further by the force applied by a person. Then, if the magnitudes of the spring forces of the upper constant load spring 5, the lower constant load spring 6 and the gas spring 7 are adjusted appropriately, the force for a person to lift the rack 3 on which the bicycle is mounted is increased. It can be small. In addition, the rack 3 can move up and down at an appropriate speed.
Moreover, the buffer-like function of the gas spring 7 works effectively, and the rack 3 does not move abruptly when moving up and down, so that the bicycle does not jump up or fall suddenly due to the sudden rise of the rack 3. Will be demonstrated.

FIG. 4 is a perspective view illustrating the relationship between the support column 2 and the back cover 15. The support column 2 is a tubular metal part partially opened in the vertical direction, and is fixed to the base 1.
Although not shown in FIG. 4, the upper constant load spring 5 which is the first bicycle transfer mechanism, the lower constant load spring 6 which is a component of the second bicycle transfer mechanism, the gas spring 7, and the pulley 8a. The 8b, the wires 10a, 10b, the lower carriage 9, and the like are arranged outside the support column 2 and are covered by the back cover 15. The condition is more clearly shown by FIGS. 6 and 7 shown later. The back cover 15 is detachably installed on the support column 2 for installation and maintenance of the components of these second bicycle transfer mechanisms. The back cover 15 does not need to reach the base 1, so it may be shorter than the support column 2.

Each of the components already described will be described again based on FIGS. 5a, 5b, 5c, and 5d, although they overlap.
In FIGS. 5a, 5b, 5c, and 5d, one end of the lower constant load spring 6 is connected to the lowermost part of the support column, and the other end can be attached to and detached from the lower end portion of the support column 2 via the pulley 8a. It is locked to the installed lower carriage 9.
In the gas spring 7, the upper end of the cylinder is connected to the upper end of the support column 2, the pulley 13 is installed at the other end having the piston 12, and the pulley 8b is installed at the upper end of the support column 2. There is. A wire 10b whose one end is connected to the upper end 14 of the support column 2 is locked to the lower carriage 9 via pulleys 13 and 8b.

FIG. 5d shows the front surface of the bicycle parking device, and the support columns 2 are provided with locking holes 18a, 18b, 19 of the stopper A16 and the stopper B17. The stopper A16 is a rod-shaped member for temporarily locking the rack 3 when the rack 3 is located at the uppermost end or the lowermost end of the support column 2, and is provided at the uppermost end and the lowermost end of the support column 2. It is locked by entering the stopper A locking holes 18a and 18b, and the rack 3 stops at that position.

On the other hand, the stopper B17 is installed on the lower carriage 9, and when the lower carriage 9 is located at the lowermost end, the lower carriage 9 is detachably locked. The support column 2 is provided with a stopper B locking hole 19 for locking the stopper B17.

Since the structure is as described above, the vertical movement of the rack 3 on which the bicycle is not mounted is related only to the upper constant load spring 5, and is not interlocked with the components of the second bicycle transfer mechanism.

FIG. 6 is a partial horizontal cross-sectional view of the bicycle parking device as viewed from above the rack 3. In FIG. 6, the upper constant load spring 5 is installed above the support column 2 fixed to the base 1 (not shown). The upper constant load spring 5 causes the rack 3 to move up and down along the support column 2. A stopper A16 is arranged at the lower end of the rack 3, and when the rack 3 reaches the lowermost end, the stopper A16 is inserted into the stopper A locking hole 18b (see FIG. 5d) provided in the support column 2 to insert the stopper A16 into the rack. 3 is locked to the support column 2.
A lower constant load spring 6 and a gas spring 7 are installed on the outside of the back surface side of the support column 2 with the isolation wall 20 in between. A back cover 15 that covers the lower constant load spring 6 and the gas spring 7 is detachably installed on the support column 2.
Note that A, B, C, and D shown in FIG. 6 indicate directions in which the bicycle parking device is viewed, and the contents thereof are shown in FIGS. 5a, 5b, 5c, 5d, and the like.

FIG. 7 is a partial horizontal cross-sectional view of the bicycle parking device as viewed from slightly above the stopper B17 at the bottom of the support column 2. A lower carriage 9 is detachably attached to the support column 2 at a position adjacent to the support column 2 at the bottom of the support column 2. The stopper B17 is arranged on the upper part of the lower carriage 9, and when the bicycle is not mounted on the rack 3, the stopper B17 is inserted into the stopper B locking hole 19 of the support column 2, and the lower carriage 9 is locked to the support column 2. The stopper B17 is unlocked when the bicycle is mounted.

8a, 8b, 8c, and 8d show that the rack 3 on which the bicycle is not mounted is gradually descending from the upper end of the support column 2. Only the upper constant load spring 6 which is the first bicycle transfer mechanism contributes to this operation, and the lower constant load spring 6 and the gas spring 7 which are the second bicycle transfer mechanism are not related to the operation. That is, the vertical movement of the rack 3 on which the bicycle is not mounted is performed only by the expansion and contraction of the upper constant load spring 5.

In FIGS. 9a, 9b, 9c, and 9d, the rack 3 on which the bicycle is not mounted descends to the lowermost end of the support column 2, and the stopper A16 installed on the rack 3 locks the stopper A of the support column 2. It shows a state in which the rack 3 is inserted into the hole 18b, the rack 3 is locked at the lowermost end of the support column 2, and the bicycle is started to be mounted on the rack 3.

In these states of FIG. 9, as in the state of FIG. 8, since the second bicycle transfer mechanism is not involved, the lower carriage 9 is locked at the lowermost end of the support column 2, and the lower carriage 9 is locked. The lower constant load spring 6 and the gas spring 7 are connected to the wire 10a and 10b via wires 10a and 10b, the lower constant load spring 6 is in an extended state, and the gas spring 7 is in a contracted state.

10a, 10b, 10c, and 10d show a state in which the bicycle is mounted on the rack 3 and the front wheels of the bicycle are in contact with the support columns 2 on the rack 3.
When the bicycle passes through the tire guide 21 installed in the center of the rack 3, the direction of the tire guide 21 is changed so that the wire connected to the tire guide 21 pulls the stopper B17, and the lower carriage by the stopper B17. The lock of 9 to the support column 2 is released. As a result, the lower carriage 9 is in a state where it can move away from the support column 2 at any time.

Further, the rack 3 can be raised at any time by manually operating the stopper A release lever 22 provided at the end of the rack 3.
At this time, the upper carriage 4 installed at the lower part of the rack 3 is on the lower carriage 9. Therefore, in this state, the rack 3, the bicycle, the lower carriage 9, and the like can be raised at the same time at any time as long as a person applies a force to push up the rack 3.
In order for the rack 3 on which the bicycle is mounted to rise, in the bicycle parking device of the present invention, the spring force that the extending lower constant load spring 6 tries to contract and the contracting gas spring 7 are similarly generated. Due to the presence of the spring force that tries to stretch, one does not need a large force.
It takes human power to make up for the difference in the weight of the bicycles installed. However, it is usually sufficient to always carry the same weight of bicycle on a rack and always apply the same force. If you think you'll be riding different weights more often in the same rack, you can remove the back cover and replace the lower constant load spring or gas spring with a different spring force to get a new weight bike. Become a corresponding bicycle parking device. By installing this back cover outside the support and by installing each component of the second bicycle transfer mechanism outside the support, the back cover can be used to park the bicycle. It is easy for the device to be maintained and inspected considering the difference in the weight of the bicycle.
As shown in FIG. 10, when the bicycle is at the lowermost position, the upper constant load spring 5 is extended, the lower constant load spring 6 is also extended, and the gas spring 7 is contracted.

11a, 11b, 11c, and 11d show a state in which the rack 3 on which the bicycle is mounted is rising along the support column 2. In this state, both the stopper A16 and the stopper B17 are released, the lower carriage 9 is gradually rising, the upper constant load spring 5 is gradually contracting from the stretched state, and the lower constant load spring 6 is also stretched. The gas spring 7 is gradually contracting from the contracted state, and the gas spring 7 is gradually expanding from the contracted state.

12a, 12b, 12c, and 12d show a state in which the rack 3 on which the bicycle is mounted has arrived at the uppermost end of the support column 2.
In this state, the stopper A16 is inserted into the stopper A locking hole 18a of the support column 2 to lock the stopper A16, and the stopper B17 is locked by a spring force. As a result, the rack 3 and the lower carriage 9 are locked to the uppermost portion. The lower constant load spring 6 is contracted, and the gas spring 7 is expanded.

13a, 13b, 13c, and 13d are views showing a state in which the rack 3 on which the bicycle is mounted is lowered.
At this time, the upper constant load spring 5 and the lower constant load spring 6 are expanding, the gas spring 7 is contracting, and the lower carriage 9 is descending.

14a, 14b, 14c, and 14d show a state in which the rack 3 on which the bicycle is mounted is lowered to the lowermost end and the bicycle is being lowered.
When the rack 3 descends to the lowermost end, the stopper A locking lever 22 automatically operates to lock the stopper A16 to the support column.
After that, when the rack 3 passes through the tire guide 21 while the bicycle is being unloaded, the tire guide 21 changes direction, and the stopper B17 is inserted into the stopper B locking hole 19 to lock the bicycle.
In this state, the upper constant load spring 5 and the lower constant load spring 6 are maximally extended, the gas spring 7 is maximally contracted, and the lower trolley 9 is locked to the bottom of the column. .. When rack 3 is raised, these return to their original state.

In the above embodiment, the gas spring is used, but since it is sufficient to have a buffer function, another fluid spring such as an oil spring may be used, and further, another spring having a buffer function may be used.

In the present embodiment, the cylinder side of the gas spring is connected to the uppermost end of the column, and a pulley is provided on the piston side so that the piston extends downward. However, the fixed position of the cylinder is lowered so that the piston extends upward. The positional relationship of the pulleys and the like may be changed. 15a and 15b show a case where the piston 24 in the cylinder 23 extends upward.

According to the present invention, a bicycle parking device on which bicycles of different weights can be mounted is a spring having a buffer-like function and a spring having no buffer function in a second bicycle transfer mechanism for moving a rack on which the bicycle is mounted up and down. The combination of the above prevents the bicycle from jumping up when transporting a light bicycle up and down, prevents a sudden drop to the ground when transporting a heavy bicycle up and down, and has an appropriate vertical transfer speed. A bicycle parking device can be provided.

According to the present invention, a spring having a buffer-like function of the second bicycle transfer mechanism and a spring not having a buffer function are installed outside the support column, and a cover is installed to cover them outside the support column. There is an effect that maintenance and inspection work such as replacing those springs as appropriate according to the tendency of the weight of the bicycle can be easily performed.

1 ・ ・ ・ ・ ・ ・ ・ ・ ・ Base 2 ・ ・ ・ ・ ・ ・ ・ Support 3 ・ ・ ・ ・ ・ ・ ・ Rack 4 ・ ・ ・ ・ ・ ・ ・ ・ Upper pulley 5 ・ ・ ・ ・ ・ ・ ・ Upper constant load spring 6 ··············································································································· ... Wires 11, 23 ... Cylinders 12, 24 ... Piston 13 ... Pulley 14 ...・ ・ ・ ・ ・ ・ ・ Stopper A
17 ・ ・ ・ ・ ・ ・ ・ ・ ・ Stopper B
18a, 18b ・ ・ ・ ・ ・ ・ ・ Stopper A locking hole 19 ・ ・ ・ ・ ・ ・ ・ ・ ・ Stopper B locking hole 20 ・ ・ ・ ・ ・ ・ ・ Separation wall 21 ・ ・ ・ ・ ・ ・ ・ Stopper A release lever 22 ・ ・ ・ ・ ・ ・ ・ ・ ・ Stopper A locking lever

Claims (3)

With stanchions
A bicycle parking device consisting of a rack that moves up and down along the support column by a spring to mount a bicycle.
When the bicycle is not mounted on the rack, the first spring supports the vertical movement of the rack.
When the bicycle is mounted on the rack, the first spring, the second spring having no buffer function, and the spring force of the first and second springs cause the bicycle to move up and down suddenly. Also used with a third spring that has a buffer function to suppress
The first spring is a constant load spring whose one end side is fixed to the upper part of the support column and the other end side is fixed to the upper carriage installed in the rack.
One end of the second spring is fixed to the lower part of the support column, and the other end side is fixed to the upper part of the support column in the middle of the first wire and the first wire via a first pulley. It is a constant load spring fixed to the lower carriage that is detachably connected to the lower part of the support.
The third spring is a fluid spring composed of a cylinder, a piston sliding in the cylinder, and a fluid sealed between the cylinder and the piston.
One end side of the cylinder is fixed at the top of the column and has a second pulley on the piston on the other end side of the cylinder.
A second wire, one end of which is fixed to the upper part of the support, is fixed to the lower carriage via the second pulley and a third pulley fixed to the upper part of the support.
A bicycle parking device characterized in that a buffer function is activated in which a fluid suppresses a sudden vertical movement of the rack by sliding the piston in the cylinder due to a load applied to the piston. The lower carriage is connected to the lower end of the column until the bicycle is mounted on the rack. When the bicycle is mounted on the rack, it can move up and down, and when the bicycle is removed from the rack, it is connected to the lower end of the support column again.
The bicycle parking device according to claim 1. The second spring and the third spring are covered by a cover that is outside the strut and is removable from the strut.
The bicycle parking device according to claim 1 or 2.

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