JP3134101B2 - Switchgear for parking lots, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for controlling the passage or blocking of a vehicle by raising and lowering a flexible strip such as a chain. The present invention relates to a switchgear for installation.

[0002]

2. Description of the Related Art Conventionally, as a device for opening and closing a car entrance in a parking lot or the like, a pair of gate posts are installed on the left and right, and a motor and a mechanism that moves up and down by rotation of the motor are incorporated into each of the gate posts. A device has been used in which an end of a chain is attached and a lifting mechanism is moved up and down to raise and lower a chain suspended between gate columns to open and close an entrance.

[0003]

However, in the conventional opening and closing device as described above, it is necessary to install the ends of the chain at the same height and to move the elevating mechanism up and down at the same speed. Therefore, the motors incorporated in each of the portal columns must have the same rotation speed, and each motor needs to be controlled by one switch in order to simultaneously rotate and stop. For this purpose, electric wires must be laid between the gate pillars. At this time, various problems such as obstruction of traffic will occur if piping on the ground is used.

However, in the case of underground piping, civil engineering work for burying the pipe is first performed, and after that, installation work for the gate post and the like is usually performed. Therefore, when performing the installation work, adverse effects such as blockage of the pipe may occur, and in many cases, the wiring work may not be performed smoothly in practice. In addition, in the case where an abnormality occurs in the wiring after installation, if the wiring is buried underground, the workability of repair is poor, and considerable work and time are required.

Accordingly, the present inventor has devised an opening and closing device which eliminates the need for wiring between the gate posts, has a very smooth lifting mechanism, and is extremely easy to perform maintenance, inspection and repair work, and can be carried out quickly. .

[0006]

An opening / closing device for a parking lot or the like according to the present invention has a main spiral shaft rotated by a motor, and a spiral having the same direction and pitch as the main spiral shaft. Is installed in parallel with the auxiliary helical shaft provided with an urging device that increases and decreases the urging force according to the rotation, and is stretched between the main helical shaft and the auxiliary helical shaft, and the rotational force or the urging force of the main helical shaft A flexible strip actuated by the urging force of the device, the one end of which is fixed to the end of the main helical shaft and wound around the main helical shaft, and the other end of which is fixed to the main helical shaft. And a flexible strip fixed to the end of the auxiliary spiral shaft corresponding to the position opposite to the side and wound around the auxiliary spiral shaft.

According to this structure, the rotation of the motor attached to the main helical shaft rotates the main helical shaft, whereby the flexible strip is wound up or unwound. The sub-spiral shaft rotates accordingly, and the flexible strip on the sub-spiral shaft side is unwound, or the flexible state is raised and lowered while being wound up. Therefore, since only the motor of the main helical shaft needs to dispose the electric wire, it is not necessary to arrange the electric wire between the main helical shaft and the sub helical shaft.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a partially omitted cutaway perspective view of an opening / closing device for a parking lot or the like according to the present invention.
a) a main pole on the main helical shaft side having (a) and a sub pole on the sub helical shaft side having a biasing device (20b) (B)
And a chain (C) as a flexible strip spanned between the poles.

The internal mechanism of the main pole (A) is as follows.
Casing (2a) consisting of bottom plate (1a) and vertically long housing
(21a) in the figure is an electromagnetic clutch,
(22a) is a shaft coupling, (31a) is a main spiral shaft, (32
a) is a bearing. The motor (20a) uses a large torque reduction motor, and is connected to the electromagnetic clutch (21a). Electromagnetic clutch (21a)
Is fixed on a support plate (3a) of an electromagnetic clutch (21a) fixed to a casing (2a), and is connected to a main spiral shaft (31a) via a shaft coupling (22a).

When electricity is supplied to the electromagnetic clutch (21a) from a power supply (not shown), the motor (20a) and the main spiral shaft (31a) are connected, and the motor (20
When electric power is supplied to a) from a power supply (not shown), the motor (20a) rotates and the main spiral shaft (31a) rotates. When the supply of electricity to the motor (20a) is stopped, the main helical shaft (31a) also stops. At this time, if electricity is supplied to the electromagnetic clutch (21a), the motor (20a) and the main helical shaft (31a) stop in a connected state. The shaft (31a) does not rotate at the stop position. On the other hand, when the supply of electricity to the electromagnetic clutch (21a) is stopped, the motor (20a) and the main spiral shaft (31a) are disconnected from each other regardless of whether or not electricity is supplied to the motor (20a). Therefore, the main spiral shaft (31a) rotates freely. The main spiral shaft (31
Since a) requires a certain level of strength, a metal or a material having a strength equivalent thereto is used. The main spiral shaft (31a) winds and unwinds the chain (C), as described later, so that the entire shaft or a part thereof is lined with rubber or resin material to prevent noise. It is desirable to keep.

The bearing bearing (32a) is fixed on the bottom plate (1a). The internal mechanism is formed by the bottom plate (1a) and the support plate (3a) of the electromagnetic clutch (21a). (2a) is fixed.

A funnel-shaped mouth member (4a) for inserting the chain (C) is provided on one side of the casing (2a), and the funnel-shaped mouth member (4a) is attached to the side. The fitting member (5a) is slidable up and down while the movement direction is regulated along a guide rail (6a) vertically mounted inside the casing (2a). The reason why the entrance / exit of the chain (C) is formed in a funnel shape in this way is to prevent the generation of noise as much as possible by avoiding contact between the chain (C) and the opening end of the entrance / exit. The funnel-shaped mouth member (4
a) can move up and down the side of the casing (2a),
An elevating window (7a) for a funnel-shaped mouth member (4a) is provided on a side surface of the casing (2a). As shown in FIG. 2, the openings of the funnel-shaped mouth member (4a) and the elevating window (7a) enter and exit the chain (C) during winding and rewinding of the chain (C) described later. A rubber or resin blocking plate (8a) is provided to prevent noise generated at the time and to prevent dust and rainwater from entering the casing.
A slit (9a) is formed in the closing plate (8a) so that the chain (C) can enter and exit and the funnel-shaped mouth member (4a) can be raised and lowered.

A limit switch (not shown) is attached to the upper end of the guide rail (6a), and when the funnel-shaped mouth member (4a) reaches a certain upper limit position.
The fitting member (5a) comes into contact with the limit switch to stop the supply of electricity to the motor (20b), so that the main spiral shaft (31a) stops.

The internal mechanism of the sub pole (B) is built in a casing (2b) composed of a bottom plate (1b) and a vertically long casing, similarly to the main pole (A), and includes a sub helical shaft (31b) and The bearing (32b) has the same configuration as the main pole (A).

The urging device (20b) is provided with a sub-helical shaft (31).
b), a shaft (21b) supported by the support plate (3b) and supported by the support plate (3b); an urging spring (22b) fixed at one end to the shaft (21b);
The other end of 2b) is fixed, and a ratchet-type urging force adjusting device (23b) supported on a shaft (21b), and a stopper (24b) for preventing repulsion and ensuring safety of the urging force adjusting device (23b). ). Since the urging device (20b) is configured as described above, the urging spring (22b)
Has one end fixed to a shaft (21b) that rotates together with the auxiliary spiral shaft (31b), and the other end to a stopper (2).
4b), the urging force adjusting device (2)
3b), when the auxiliary spiral shaft (31b) rotates in a certain direction, the urging spring (22b) is tightened to store the urging force. And
If the rotational force is removed from the auxiliary spiral shaft (31b) so as to rotate freely, the rotation in the opposite direction to that described above is performed by the stored biasing force. In order to adjust the urging force, the fixing pin (25b) holding the stopper (24b) is released, the engagement between the stopper (24b) and the urging force adjusting device (23b) is released, and the The urging force adjusting device (23b) is rotated, and is again engaged with the stopper (24b) to engage with the fixing pin (25b) to engage the stopper (2).
4b) may be fixed. Since the strength of the biasing spring (22b) needs to be changed according to the length of the chain due to the size of the installation location of the opening / closing device, the biasing force adjusting device (23b) is operated if necessary. And adjust accordingly. In the drawing, (26b) is a protection cylinder for protecting the urging spring (22b) which is a main member of the urging device. In addition, as the urging spring, in addition to the coil spring as described above, any spring, such as a leaf spring or a mainspring spring, may be used as long as it can accumulate the urging force. Any configuration may be used as long as the rotation of the shaft can be accumulated as an urging force. Further, since the auxiliary helical shaft (31b) requires a certain degree of strength similarly to the main helical shaft (31a), it is made of metal or one having the same strength. Further, like the main spiral shaft (31a), it is preferable that the entire spiral shaft or a part of the auxiliary spiral shaft (31b) is lined with rubber or resin material in order to prevent noise.

The bearing bearing (32b) is fixed on the bottom plate (1b). The bottom plate (1b) and the support plate (3b) of the shaft (21b) allow the internal mechanism described above to be a casing ( 2b).

A funnel-shaped mouth member (4b) for inserting a chain (C) is provided on one side of the casing (2b), similarly to the main pole (A), and a fitting attached to the side is provided. The joining member (5b) is slidable up and down along a guide rail (6b) vertically mounted inside the casing (2b). Similarly to the main pole (A), the funnel-shaped mouth member (4b) is raised and lowered on the side surface of the casing (2b) so that the funnel-shaped mouth member (4b) can move up and down the side of the casing (2b). Window (7
b) is provided, and a rubber closing plate (8b) is arranged at each opening of the funnel-shaped mouth member (4b) and the elevating window (7b) so that dust and rainwater do not enter the casing. ,
The closing plate (8b) has slits (9) so that the chain (C) can enter and exit and the funnel-shaped mouth member (4b) can be raised and lowered.
b) is formed.

The chain (C) is fixed to the lowermost end of the main spiral shaft (31a) of the main pole (A) as shown in FIG. After being wound, it is pulled out from the funnel-shaped mouth member (4a) to the outside, and at the same height as that of the funnel-shaped mouth member (4a), the sub-pole (B) is pulled out from the funnel-shaped mouth member (4b). (B), the sub-spiral shaft (31b) is wound clockwise as viewed from above in the figure, and is fixed to the uppermost portion of the sub-spiral shaft (31b).

Next, the operation of the switchgear having the above configuration will be described in detail. The main pole (A) and the sub-pole (B) having the above-described configuration are inserted into the bolt holes (10a) formed in each bottom plate (1a, 1b) at an appropriate interval, for example, at an interval allowing a vehicle to pass. , 10b), and fixed on the ground. Then, wiring of electric equipment such as the motor (20a), the electromagnetic clutch (21a) and the limit switch on the main pole (A) side is performed. All electric appliances such as electric bulbs and emergency switches are provided and wired on the main pole side.

When the motor (20a) is rotated counterclockwise as viewed from above in the figure, the main helical shaft (31) is rotated.
In a), the chain (C) is further wound up from the state shown in FIG. 1, and accordingly, the upper end position of the chain (C) with respect to the main pole (A) rises, and the funnel-shaped mouth member (4a) also rises. I do. At the same time, in the sub pole (B), the chain (C) is pulled by the tension of the main spiral shaft (31a), and the funnel-shaped mouth member (4b) is wound by the length of the main spiral shaft (31a). ), The auxiliary spiral shaft (31b) rotates counterclockwise as viewed from above in the figure by the same amount of rotation as the main spiral shaft (31a), and accordingly the urging device (20b) is further rotated. The lower end position of the chain (C) with respect to the sub pole (B) rises while the urging force is being stored. Therefore, as shown in FIG. 3, the chain (C) suspended between the poles (A, B) translates upward and reaches the upper limit, so that the vehicle can be blocked. Then, the fitting member (5a) attached to the funnel-shaped mouth member (4a) rises along the guide rail (6a) and comes into contact with the limit switch attached to the guide rail (6a). The supply of electricity to (20a) stops, and the movement of the chain (C) stops. At this time, the motor (20a)
And the main helical shaft (31a) are connected to each other, so that even if a tension is applied to the chain (C) by the biasing force toward the sub-pole (B), the main helical shaft is generated by the torque of the motor (20a). (31a) does not rotate backward.

Next, when the supply of electricity to the electromagnetic clutch (21a) in the main pole (A) is stopped, the connection between the motor (20a) and the main helical shaft (31a) is released, and the main helical shaft (31a) is disconnected. Rotation becomes free. Then, the urging force of the urging device (20b) in the sub pole (B) acts, and the sub-helical shaft (31b) starts to rotate clockwise as viewed from above in the figure, and winds the chain (C). become. Along with this, the lower end of the chain (C) with respect to the sub pole (B) is lowered and the funnel-shaped mouth member (4
b) falls. At the same time, the chain (C) is rewound from the main helical shaft (31a) of the main pole (A) by the rotational force of the sub helical shaft (31b) due to the urging force, and the main helical shaft (31a) is moved from above in the figure. Look and rotate clockwise. Accordingly, the upper end of the chain (C) with respect to the main pole (A) is lowered, and the funnel-shaped mouth member (4a) is lowered.
Also descends. Therefore, as shown in FIG. 4, the chain (C) suspended between the poles (A, B) moves downward in parallel, and when the lower limit is reached, the vehicle can pass.
When the end of the chain (C) is fixed to the auxiliary spiral shaft (31b) while the biasing spring is previously tightened, when the chain (C) descends, the chain (C) This is preferable because it can be quickly and precisely wound up to the lower limit of the spiral shaft (31b).

In the operation of the switchgear described above, when the supply of electricity is stopped due to a power failure or the like during the operation, that is, when the chain (C) is located at an upper position, the supply of electricity to the electromagnetic clutch (21a) is performed. Stops, the chain (C) moves downward as described above, and reaches the lower limit, so that the vehicle can pass. Thereafter, when the supply of electricity is restored, the electricity is supplied to the motor (20a) and the electromagnetic clutch (21a), and the chain (C) rises so that the traffic of the vehicle can be cut off.

Although the present embodiment has the above-described structure and operation, the following measures are taken as a countermeasure when an unexpected impact such as a collision or hooking is applied to the chain (C). Configurations can be added. That is, as a first configuration, the length of the two helical shafts (31a, 31b) in the vertical direction is longer than the distance in which the chain (C) moves up and down.
Then, the upper and lower portions of the two helical shafts (31a, 31b) become extra winding portions that are not involved in elevating the chain (C). Further, as a second configuration, a wire rope thinner than the chain (C) is connected to both ends of the chain (C), and the main helical shaft (31) is connected so as not to be involved in elevating the chain (C).
Only the wire rope is double-wrapped around the lower end portion of a) and the upper end portion of the auxiliary spiral shaft (31b) to form an extra winding portion.

With such a configuration, in the state where the chain (C) is located at the upper limit or the lower limit, even if an impact is applied such that the chain (C) is suddenly pulled, the extra winding portion is drawn out. As a result, the impact is reduced, so that damage to the switchgear can be prevented. If an impact is received while the chain (C) is being raised, the impact is reduced by winding the urging spring (22b) on the sub pole side, and the chain (C) is lowered. When an impact is sometimes received, the electromagnetic clutch (21a) on the main pole side has already been disengaged and can freely rotate, so that the impact can be reduced.

[0026]

As described above, the opening / closing device for a parking lot or the like according to the present invention has a main spiral shaft rotated by a motor, and a spiral having the same direction and the same pitch as the main spiral shaft. Is installed in parallel with the auxiliary helical shaft provided with an urging device that increases and decreases the urging force according to the rotation, and is stretched between the main helical shaft and the auxiliary helical shaft, and the rotational force or the urging force of the main helical shaft A flexible strip actuated by the urging force of the device, the one end of which is fixed to the end of the main helical shaft and wound around the main helical shaft, and the other end of which is fixed to the main helical shaft. Since it is composed of a flexible strip fixed to the end of the sub-helical shaft corresponding to the position opposite to the side and wound around the sub-spiral shaft, only the motor of the main helical shaft needs to be electrically wired. Therefore, there is no need to arrange electric wires between the main spiral shaft and the sub-helical shaft by underground piping, etc., and therefore, installation cost and installation time It can be reduced.

Further, since the opening and closing device for parking lots and the like according to the present invention has a small number of parts, the productivity is good, the production cost can be kept low, and the number of breakdowns is small.
Furthermore, one motor can drive both the main spiral shaft and the sub-spiral shaft, and it has an extremely simple structure and does not require a precise sensor or the like, so maintenance and inspection are easy and repair is easy. There are advantages.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an opening / closing device for a parking lot or the like according to the present invention.

FIG. 2 is a partial perspective view in the vicinity of a funnel-shaped mouth member in the opening and closing device.

FIG. 3 is an opening and closing device for a parking lot or the like according to the present invention;
It is a partially omitted notch perspective view showing the state where a chain rises.

FIG. 4 is an opening and closing device for a parking lot or the like according to the present invention;
It is a partially omitted notch perspective view showing the state where a chain descends.

[Explanation of symbols]

 A: Main pole B: Sub pole C: Chain 1a, 1b: Bottom plate 2a, 2b: Casing 3a, 3b: Support plate 4a, 4b: Funnel-shaped mouth member 5a, 5b: Fitting Joint members 6a, 6b Guide rails 7a, 7b Elevating windows 8a, 8b Closing plates 9a, 9b Slits 10a, 10b Bolt holes 20a Motor 21a Electromagnetic clutch 22a Shaft coupling 31a Main spiral Shaft 32a ... Bearing bearing 20b ... Biasing device 21b ... Shaft 22b ... Biasing spring 23b ... Biasing force adjusting device 24b ... Stopper 25b ... Fixing pin 26b ... Protective cylinder 31b ... Sub spiral shaft 32b ... Bearing bearing

Claims (1)

(57) [Claims] 1. A biasing device, comprising: a main helical shaft that is rotated by a motor; and a helical shaft having the same direction and pitch as the main helical shaft. The helical shaft is installed in parallel with the main helical shaft. A sub-spiral shaft provided with the device, a flexible strip that is stretched between the main helical shaft and the sub-spiral shaft, and is operated by the rotational force of the main helical shaft or the urging force of the urging device, One end is fixed to the end of the main helical shaft and wound around the main helical shaft, and the other end is fixed to the end of the sub helical shaft corresponding to the position opposite to the one end fixed to the main helical shaft. And a flexible strip wound around a sub-spiral shaft.