JP5616418B2 - Hand-wound gondola - Google Patents

Description

  The present invention relates to a hand-wound gondola, and more specifically, it is possible to wind up a gondola by assisting human power with an electric assist force, and is suitable for promptly leading an evacuee to a high place in a tsunami evacuation facility or the like. It relates to the hand-wound gondola used for the car.

Japan is one of the most earthquake-prone countries in the world, and the reality is that there are many victims who lose their precious lives due to earthquakes every year.
Many of the victims of an earthquake die from the earthquake itself, such as the collapse of a building, but near the coast, as seen in the example of the Great East Japan Earthquake, There are many victims who rarely lose their lives.

Conventionally, when a tsunami occurs, it is common to evacuate to evacuation facilities such as schools and public halls on high grounds designated in advance by local governments.
However, since the speed of tsunami is very fast, there is a big problem that if the evacuation facility is far away from the coast, the residents near the coast may not be able to evacuate in time. In spite of this, however, in Japan, there are almost no tsunami shelters near the coast.

Patent Document 1 below discloses a tsunami evacuation structure installed near the coast.
However, in the building disclosed in Patent Document 1, the indoor portion is provided at a high position from the ground surface so that the evacuees are not exposed to the tsunami, but the indoor portion is located on the high floor from the ground surface. Since the means for climbing to the part is limited to stairs, it was difficult to evacuate quickly, and there was a high risk of being caught in a tsunami during evacuation.
Especially for elderly people, women, children, etc., who have weak legs, it is very difficult to evacuate to a high indoor area by going up long stairs, and they are trapped in a tsunami during the evacuation. There was a great risk of losing.

In view of such problems, the present applicant has proposed the disclosed technique of Patent Document 2 below.
The disclosed technology of Patent Document 2 is a tsunami comprising a column driven into the ground, an evacuation platform supported at a predetermined height on the ground by the column, and an elevating means that enables the ground surface and the evacuation platform to go back and forth. In the evacuation shelter, the lifting means consists of stairs and gondola.
According to the tsunami refuge disclosed in Patent Document 2, a gondola is provided as an elevating means that allows the ground surface and the refuge to come and go, so quick evacuation by stairs to the high refuge Even an elderly person or a child who is difficult to evacuate can easily and quickly evacuate to the refuge using the gondola.

However, the gondola provided at this tsunami shelter is configured to move up and down using the power supplied from the generator as a power source, so it can no longer be used if the generator breaks down due to flooding. There was a problem that the function as the lifting means could not be completely lost. Even if an external power source is used as a power source instead of the generator, the gondola cannot be used after a power failure.
As a method for solving such problems, it can be considered that the gondola is manually wound. However, it is not easy to wind up a heavy gondola on which many people ride, and many people cannot be evacuated quickly.

In view of the above situation, the present applicant has proposed a new hand-wound gondola in Japanese Patent Application No. 2011-198830.
This hand-wound gondola is excellent because it can solve all of the above problems, but it is necessary to manually change the gear by the clutch mechanism, so that the person who operates it is not accustomed to the operation. In some cases, the switching could not be performed satisfactorily.

Japanese Patent Laid-Open No. 9-184323 JP 2006-112087 A

  The present invention has been made to solve the above-described problems of the prior art, and has a mechanism for assisting the winding by human power, and can be wound only by human power without requiring electric power. In addition, the present invention provides a hand-wound gondola that is easy to operate and can be suitably used to quickly guide evacuees to high places in a tsunami evacuation facility or the like.

The invention according to claim 1 is a gondola kite on which a person rides, a counterweight for balancing the weight of the gondola kite, a wire for hanging the gondola kite, and a winding drum for winding up the wire for hanging the counterweight And a driving device for rotating the hoisting drum, and an electric assist mechanism for assisting a force for rotating the hoisting drum, wherein the driving device is a first handle and a second handle that are rotated manually. A first rotating shaft connected to the first handle via a gear box, a second rotating shaft connected to the gear box, and the second handle to the second rotating shaft as required. a connecting member for the slide coupling consists of a coupling mechanism for connecting the electric assist mechanism and the second rotation axis, said collector Assist mechanism includes an electric motor, possess a power capable storage battery for driving the electric motor, and a sensor for detecting a rotational torque of the second handle to rotate as needed, of the second handle The present invention relates to a hand-wound gondola characterized in that control is performed so that assistance by driving of the electric motor increases as rotational torque increases .

  The invention according to claim 2 relates to the hand-wound gondola according to claim 1, further comprising switching means for switching between use and non-use of the electric assist mechanism.

  According to a third aspect of the present invention, the handle includes a first handle that is used when the electric assist mechanism is not used and a second handle that is used when the electric assist mechanism is used. The two handles can be switched between a connected state in which the two handles are rotatably connected to a rotating shaft rotated by the first handle and a non-connected state in which the rotating shaft is not rotatable. The hand-wound gondola according to claim 2.

According to a fourth aspect of the present invention, the operating shaft of the first handle and the operating shaft of the second handle extend in a direction perpendicular to each other, and in the connected state, the first handle and the second handle are The hand-wound gondola according to any one of claims 1 to 3 , wherein the hand-wound gondola is connected to the rotating shaft via a bevel gear mechanism.

  According to the hand-wound gondola of the invention according to claim 1, the electric assist mechanism for assisting the force for rotating the winding drum for winding the wire for hanging the gondola rod and the wire for hanging the counterweight is provided. Therefore, even a heavy gondola on which many people ride can be easily wound up by human power assisted by the electric assist mechanism. Further, since the electric assist mechanism has an electric motor and a battery capable of storing electric power for driving the electric motor, the electric motor can be driven to assist human power without requiring an external power source. . In addition, since it is not necessary to manually switch the clutch mechanism, anyone can easily lift and lower the gondola.

  According to the hand-wound gondola of the invention according to claim 2, since the switching means for switching between use and non-use of the electric assist mechanism is provided, the electric assist mechanism cannot be used due to a battery exhaustion or a malfunction due to water immersion. It can be operated manually.

  According to the hand-wound gondola of the invention according to claim 3, the handle includes the first handle used when the electric assist mechanism is not used and the second handle used when the electric assist mechanism is used. Since the second handle can be switched between a connected state in which the second handle is rotatably connected to the rotary shaft rotated by the first handle and a non-connected state in which the rotary shaft is not rotatable, the electric assist The first handle is used when the assistance of the mechanism is not required, and the second handle is used when the assistance is required, so that the hoisting drum can be rotated respectively, so that the operability is excellent. ing.

  According to the hand-wound gondola of the invention according to claim 4, the operating shaft of the first handle and the operating shaft of the second handle extend in a direction perpendicular to each other, and in the connected state, the first handle and the second handle Since the two handles are connected to the rotating shaft via the bevel gear mechanism, the operator can rotate the rotating shaft using both the first handle and the second handle in the connected state. In addition, since the first handle and the second handle are in a positional relationship 90 degrees apart, two or more people can easily operate the first handle and the second handle simultaneously. Therefore, even when a large number of people are on the gondola pass, the gondola pass can be raised and lowered quickly.

It is a front view which shows the whole structure of the hand winding type gondola which concerns on this invention. It is a top view which shows the whole structure of the hand winding type gondola which concerns on this invention. It is a left view which shows the whole structure of the hand winding type gondola which concerns on this invention. It is a front view of the principal part of the hand winding type gondola concerning the present invention. It is a right view of the principal part of the hand winding type gondola which concerns on this invention. It is a top view of the principal part of the hand winding type gondola concerning the present invention. It is a figure which shows the winding drum of the hand-wound gondola which concerns on this invention, Comprising: (a) is a front view, (b) is a left view. It is a block diagram which shows the structure of the electric assist mechanism of the manual winding type gondola which concerns on this invention.

Hereinafter, a preferred embodiment of a hand-wound gondola according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the hand-wound gondola according to the present invention includes a gondola rod (1) on which a person rides, a counterweight (2) for balancing the weight with the gondola rod (1), and a gondola. A driving device (50) provided with a winding drum (3) for winding a wire for hanging the rod (1) and the counterweight (2), and a first handle (5) for rotating the winding drum (3) manually. ) And an electric assist mechanism (4) for assisting a force for rotating the winding drum (3).

The size of the gondola basket (1) is not particularly limited. For example, when it is assumed that it is wound up by one person, a maximum load of about 350 kg (for example, five-seater specification) is suitable, and a wheelchair is mounted. It is preferable to have a possible width.
The gondola basket (1) is suspended below the winding drum (3) by two wires (7) wound around both ends of the winding drum (3) (see FIGS. 1 to 3). ).
In FIGS. 1 and 3, the lowest lowered position of the gondola rod (1) is indicated by a solid line, and the highest raised position is indicated by a two-dot chain line. Moreover, the code | symbol (25) in FIG.1 and FIG.2 is a scaffold for getting on and off the gondola pass (1).

The counterweight (2) is suspended by a wire (8) wound around the center of the winding drum (3) (see FIGS. 1 to 3). As shown in FIG. 2, the wire (8) is unwound from the winding drum (3) and connected to the counterweight (2) via the two pulley devices (6).
The weight of the counterweight (2) is preferably set to about half of the maximum load weight of the gondola basket (1). For example, when the maximum loading weight of the gondola basket (1) is 350 kg, the weight of the counterweight (2) is set to 175 kg.
In FIGS. 1 and 3, the highest position of the counterweight (2) is indicated by a solid line, and the lowest position is indicated by a two-dot chain line.

As shown in FIG. 7, the winding drum (3) is rotatably supported by bearings (9) at both ends in the length direction. A thread groove (3a) around which a wire (7) for suspending the gondola rod (1) is wound is formed in the left portion and the right portion in the length direction of the winding drum (3). . Further, a thread groove (3b) around which a wire (8) for suspending the counterweight (2) is wound is formed near the center in the length direction of the winding drum (3).
A sprocket (10) is attached in the vicinity of the right end of the winding drum (3). The sprocket (10) is connected to a sprocket (16) rotated by a first handle (5) described later and a chain (11) (see FIGS. 2, 4, and 6). Thus, as will be described later, when the sprocket (16) is rotated by the first handle (5), the rotational driving force (torque) is transmitted to the sprocket (10) via the chain (11), and the winding drum (3) rotates.
The number of teeth of the sprocket (10) is preferably set to be larger than the number of teeth of the sprocket (16) (for example, about 4 to 5 times).

The first handle (5) for manually rotating the winding drum (3) is connected to the first rotating shaft (13) via the gear box (12) and the coupling (15) (FIG. 4, Two first handles (5) are provided at positions facing each other across the gear box (12) (see FIGS. 5 and 6).
The gear box (12) accommodates a known bevel gear mechanism for switching the rotation direction of the first handle (5) by 90 ° and transmitting it to the first rotation shaft (13). When the rotation is transmitted to the first rotation shaft (13), the rotation speed is reduced (decelerated).

The first rotating shaft (13) is rotatably supported by a pair of bearings (14) fixed to a gantry (24), and a sprocket (16) is attached to one end thereof (FIG. 4, (See FIG. 6). As described above, the sprocket (16) is connected to the sprocket (10) attached to the winding drum (2) via the chain (11).
A brake rotor (18a) is attached near the center in the length direction of the first rotating shaft (13). A brake caliber (18b) is fixed to the gantry (24) on which the drive device (50) is mounted and fixed (see FIG. 4). By manually operating the brake caliber (18b), the brake The rotation can be stopped by sandwiching the rotor (18a) from both sides. When the rotation of the brake rotor (18a) stops, the first rotating shaft (13) also stops, and further, the winding drum (3) connected to the first rotating shaft (13) via the chain (11) also stops. . Thereby, in an emergency, the gondola basket (1) can be stopped manually.

The bevel gear mechanism of the gear box (12) is also connected (engaged) with a second rotating shaft (17) extending on the opposite side to the first rotating shaft (13). Thereby, the rotation of the second rotating shaft (17) is transmitted to the first rotating shaft (13) via the gear box (12).
The connection mechanism connects the second rotating shaft and the electric assist mechanism. The coupling mechanism includes a sprocket (20), a chain (21), and a sprocket (22).
A cylindrical connecting member (19) is fitted to the second rotating shaft (17), and a sprocket (20) is attached to the connecting member (19) (see FIG. 4). The sprocket (20) is connected by a chain (21) to a sprocket (22) that is rotationally driven by an electric motor of the electric assist mechanism (4). Thereby, the rotational driving force by the electric motor of the electric assist mechanism (4) is transmitted to the sprocket (20) by the coupling mechanism, that is, via the sprocket (22) and the chain (21), and the second rotating shaft (17). And it acts as a rotational driving force of the first rotating shaft (13).

As shown in FIG. 4, the connecting member (19) is detachably connected to the second handle (23). 5 and 6, the second handle (23) is not shown.
A concave connected portion (191) is provided at the end of the connecting member (19) opposite to the gear box (12), and this connected portion (191) is provided on the second handle (23). The connecting member (19) and the second handle (23) are connected by meshing with the convex connecting portion (231) formed. In this meshing state (connected state), the second handle (23) and the connecting member (19) rotate integrally. This meshing state can be easily released by sliding the second handle (23) to the left in FIG. 4 along the second rotation axis (17) by human power. In FIG. 4, the lower general view shows a state of disengagement (non-connected state), and the upper part of the circle shows the meshed state (connected state).
The above-described mechanism for detachably connecting the connection member (19) and the second handle (23) (switching between the connected state and the non-connected state) constitutes switching means for switching between using and not using the electric assist mechanism. ing.

FIG. 8 is a block diagram showing the configuration of the electric assist mechanism of the hand-wound gondola according to the present invention.
The electric assist mechanism (4) includes an electric motor (41), a battery (42) capable of storing electric power for driving the electric motor (4), a control device (43) including a CPU and a memory, And a sensor (44) for detecting the rotational torque of the two handles (23). As the electric assist mechanism (4), a known electric assist mechanism used in an electric assist bicycle or the like can be used.
As the electric motor (41), for example, a brushless motor having specifications of an output of 250 W, a torque of 24 Nm, and a rotation speed of 180 rpm is used, but is not limited thereto.
As the battery (42), for example, a lithium ion battery having a voltage of 26V and a capacity of 7Ah is used, but is not limited thereto.

The control device (43) performs input proportional assist control. That is, as the rotational torque of the second handle (23) detected by the sensor (44) increases, the assist by driving the electric motor (41) increases. The assistance by driving the electric motor (41) is that the sprocket (22) is rotated by the electric motor (41), and this rotational driving force is transmitted to the sprocket (20) through the chain (21), that is, the connection mechanism is electrically driven. The driving force by the motor (41) is transmitted and acts as the rotational driving force of the first rotating shaft (13) and the second rotating shaft (17).

When the electric assist mechanism (4) is used during the operation of the hand-wound gondola, the second handle (23) is connected to the connecting member (19) (see the partial diagram in FIG. 4 circle). In this state, when the operator manually rotates the second handle (23), the rotational torque of the second handle (23) is detected by the sensor (44). The control device (43) controls the electric power supplied from the battery (42) to the electric motor (41) so as to obtain an output of the electric motor (41) proportional to the detected rotational torque. The output of the electric motor obtained proportional to the rotational torque of the second handle (23) (41) (rotational driving force) is transmitted to the sprocket (20) via a sprocket (22) and chain (21), i.e. A driving force from the electric motor (41) is transmitted by the coupling mechanism, and acts as a rotational driving force for the first rotating shaft (13) and the second rotating shaft (17). Since this rotational driving force assists the rotation of the second handle (23) by human power, the rotation of the second handle (23) causes the second rotation shaft (17), the first rotation shaft (13) and the winding drum ( The operation of rotating the gondola cage (1) by rotating 3) can be easily performed with small human power.

Here, the operation shaft of the first handle (5) and the operation shaft of the second handle (23) extend in a direction perpendicular to each other. In the connected state, the first handle (5) and the second handle (23) are connected to the first rotating shaft (13) via the bevel gear mechanism of the gear box (12).
Thus, when operating the hand-wound gondola, the operator can rotate the first rotation shaft (13) using both the first handle (5) and the second handle (23). In addition, since the first handle (5) and the second handle (23) are positioned 90 degrees apart, two or more people can easily operate the first handle (5) and the second handle (23) simultaneously. Can do. Therefore, even when a large number of people are on the gondola basket (1), the gondola basket (1) can be moved up and down quickly.

When the electric assist mechanism is not used during the operation of the hand-wound gondola, the connection between the second handle (23) and the connecting member (19) is released (see the overall view of FIG. 4). In this state, even if the operator rotates the second handle (23), since the rotational torque of the second handle (23) is not detected by the sensor (44), the electric assist mechanism does not operate.
When the electric assist mechanism is not used, the first handle (5) is rotated manually to rotate the first rotating shaft (13), thereby rotating the winding drum (3) and the gondola cage (1). It is possible to perform an operation for raising and lowering. Therefore, even if the electric assist mechanism cannot be used due to insufficient power stored in the battery (42) or failure of the electric system due to tsunami inundation, etc., the gondola basket (1) is raised and lowered. It is possible to perform operations.

The hand-wound gondola according to the present invention can be used by being attached to various facilities and facilities that need to be lifted up and down to a high place by placing a person, but can be preferably used by being attached to a tsunami evacuation facility. it can.
For example, as shown in FIG. 1 to FIG. 3, a support column (51) standing on the ground (G), and the support column (51) is supported at a predetermined height on the ground (higher than the expected height of the tsunami). In a tsunami evacuation facility equipped with an evacuation platform (52) and a handrail (53), the hand-wound gondola according to the present invention can be attached as a lifting means to the evacuation platform (52).

  The present invention is suitably used as a gondola for guiding evacuees to high places where tsunamis do not reach, for example, in tsunami evacuation facilities.

DESCRIPTION OF SYMBOLS 1 Gondola 2 Counterweight 3 Winding drum 4 Electric assist mechanism 41 Electric motor 42 Battery 43 Controller 44 Sensor 5 1st handle 7 Wire 8 Wire 13 1st rotating shaft 23 2nd handle

Claims (4)

A gondola pass where people ride,
A counterweight for balancing weight with the gondola bowl;
A winding drum for winding up the wire for hanging the gondola rod and the wire for hanging the counterweight;
A driving device for rotating the winding drum;
An electric assist mechanism for assisting a force for rotating the winding drum,
The driving device includes:
A first handle and a second handle that are manually rotated;
A first rotating shaft coupled to the first handle via a gear box;
A second rotating shaft coupled to the gear box;
A connecting member for slidingly connecting the second handle to the second rotating shaft as required;
A connection mechanism that connects the second rotating shaft and the electric assist mechanism;
The electric assist mechanism, it possesses an electric motor, a battery capable of storing electric power for driving the electric motor, and a sensor for detecting a rotational torque of the second handle to rotate as needed,
The hand-wound gondola is controlled such that as the rotational torque of the second handle increases, the assistance by driving the electric motor increases .   The hand-wound gondola according to claim 1, further comprising switching means for switching between use and non-use of the electric assist mechanism. The switching means is
The second handle can be switched between a connected state in which the second handle is rotatably connected to a rotary shaft rotated by the first handle and a non-connected state in which the rotary shaft is not rotatable. The hand-wound gondola according to claim 2. The operation shaft of the first handle and the operation shaft of the second handle extend in a direction perpendicular to each other,
In the connected state, the first handle and the second handle are connected to the rotating shaft via a bevel gear mechanism.
The hand-wound gondola according to any one of claims 1 to 3.

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