JPS63138076A - Door apparatus of parking equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is utilized in the technical field of parking facilities, and particularly relates to a door device provided at an entrance for a motor vehicle.

(Prior Art) Conventionally, in a parking facility equipped with an automobile transport machine such as an automobile elevator, a door that opens and closes mechanically is provided at the entrance/exit for the automobile leading to the hoistway, pit, etc. of the transport machine. A car that is about to board a transport machine to enter or exit the warehouse waits in front of the door for the transport machine to arrive, and when the transport machine arrives, the door opens, the vehicle gets on, and the vehicle is transported to a designated parking spot or to the high entrance on the first floor. It is. On the other hand, especially in multi-storey parking garages, it is legally required to install fire extinguishing equipment and, in the event of a fire, to automatically close the door with a signal from the fire extinguishing equipment even if the power supply is destroyed. Therefore, the door is normally biased in the closing direction by a balance weight, and the brake or latch of the door motor is released in response to a signal from the fire extinguishing equipment, and the door is closed by the lowering action of the balance weight.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional configuration, the first problem is that if the driver who is waiting for the arrival of the transport machine accidentally drives the car out of control, the car may There is a risk of the door breaking through and falling into the hoistway or pit, etc. In addition, in order to make the door resistant to car collisions, the door would have to have an extremely large structure, requiring too much installation space and cost. there were. As a second advantage, the weight of the balance weight that biases the door in the closing direction is set to be heavy considering the inertia force in addition to the frictional resistance of the door. Therefore, when the door closes in the event of a fire, the impact force is significantly greater than in normal times, and there is a risk that the door may be damaged. In the event of an actual fire, it does not matter if a part of the door is damaged as long as the door remains shut off because the purpose will be achieved, but there was a problem in that during operational tests upon completion, etc., damage had to be prevented. In particular, for central horizontal doors, the left and right doors are connected by chains so that they move in opposite directions, so if the left and right doors collide, the inertia of the chain or motor will cause the door drive device to stop. In order to prevent the door from being damaged or from stopping with the door slightly open due to the reaction from a collision, an expensive variable speed motor and control device are required.

The present invention has been made to solve these conventional problems, and to provide a door that prevents automobiles from falling into hoistways, pits, etc., and that is not damaged by impact when closing. .

(Means for Solving the Problems) The present invention consists of two means for solving the above-mentioned conventional problems. In this, a protective member for resisting a collision of a car is fixed to the door, and a mooring member for mooring the protective member is fixed near the opposite side that partitions the rectangular opening of the entrance/exit. has locking portions at both ends of the strip, and the locking member is characterized in that the locking portion engages by a certain amount when the door is closed. , in the second means,
In addition to the first means, the door is biased in the closing direction by a balance weight or the like, and when the door is opened by a motor and the door is closed, a braking force is generated by applying direct current to the motor. , which is characterized by being equipped with an electric device that suppresses the door from being accelerated by a balance weight or the like.

(Function) In the first means, when a car collides with a closed door, even if the door is damaged, the protective member whose both ends are moored to the mooring member deforms and stretches like a steel cable. All impact force is treated as tensile stress. Therefore, the protective member can withstand a large collision force and prevent the vehicle from falling even without increasing its cross-sectional area or using high-quality materials. In the second means, when the door is closed while being accelerated by a balance weight or the like, direct current is applied to the motor to perform dynamic braking to suppress excessive acceleration of the door.

Therefore, the door is not susceptible to damage due to impact forces upon closing and does not require expensive variable speed motors or control devices.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 13.

Embodiment 1 FIG. 12 shows a door device 1o of a parking facility 1 in the first invention.
shows. Parking facility 1 is a multi-story parking lot with multiple floors.
A car elevator 4 is provided in a hoistway 3 that connects the car entrances 2 of each floor.

M is a car.

The door device 10 is a two-panel door that opens upwardly and is provided at each entrance 2, and its structure is shown in FIGS. 1 to 3. The entrance/exit 2 is formed by covering the left, right and upper side edges of a rectangular opening provided in a wall 5 with a three-sided frame 2a. Pillars 11 are erected along the left and right edges of the entrance/exit 2 on the hoistway 3 side, and both pillars 11
An upper beam 12 that connects the top of the frame is fixed to the wall 5 via a bracket 12a. 13 is an upper door, and 14 is a lower door, both of which can freely slide vertically between guide rails 11 fixed to both pillars 11 via guide shoes 13a and 14a fixed to both left and right edges. It is set in. Reference numeral 15 denotes a motor with a brake, which is fixed to the upper beam 12, and has a sprocket 15a fixed to its output shaft.

16 is the drive shaft.

It is rotatably attached to the upper beam 12, and a sprocket 16a having more teeth than the sprocket 15a and three sprockets 16b having the same number of teeth are fixed thereto. Further, the upper beam 12 has sprockets 17a and 17b, and the upper door 13 has sprockets 13b and 1.
3c are each rotatably attached. In the above sprockets, sprockets 15a and 16a
A chain 18a is wound around the chain 18a in a loop shape, while
One end of the chain 18b is attached to the upper beam 12, and the other end is connected to the sprockets 13c and 13b.

The chain 18c is connected to the balance weight 19 via the chain 17a and 16b, and the chain 18c has one end connected to the lower door 14 and the other end connected to the sprockets 17a and 19.
The chain 18d is attached to the balance weight 19 via the sprockets 17b and 16b, and one end of the chain 18d is attached to the lower door 14, and the other end is attached to the balance weight 19 via the sprockets 17b and 16b. The balance weight 19 is attached to one of the pillars 11 so as to be movable up and down. Therefore, due to the rotation of the drive shaft 16, the upper door 13 moves up and down at half the speed of the lower door 14. The weight of the balance weight 19 is calculated from (half the weight of the upper door 13) + (the weight of the lower door 14) + (the weight of the chains 18b, 18c, 18d) so that both the upper and lower doors 13.14 close only by gravity. It is also set to a slightly lighter level.

The above configuration is similar to that of a conventional door device, and the feature of the first invention is the following configuration.

That is, near the left and right edges of the lower door 14 of the entrance 2, two mooring members 20 for mooring protective members 21, which will be described later, on the hoistway 3 side are arranged vertically and horizontally opposite each other. It is set up.

The mooring member 20 includes a strip plate portion 20 formed by bending into a two-shape.
A has a C-shaped engagement portion 20b at one end thereof, and the other end is fixed to the wall 5 by a bolt 20c and a nut 20d. On the hoistway 3 side of the lower door 14, two protective members 21 are arranged in parallel at positions corresponding to the mooring members 2o. The protective member 21 is provided with locking portions 21b at both ends of a strip portion 21a bent into a chevron shape, which engages with the portion 20b when the lower door 14 is closed, and the center portion is provided with a lower portion 21b. It is fixed to the panel surface of the door 14. In addition, when the lower door 14 has the necessary strength, the middle part of the strip plate part 21a may be omitted and the lower door 14 may be used instead.

Next, the operation of the door device 10 will be explained.

When a car M on the first floor is parked on an upper floor, the car M waits for the elevator 4 to arrive in front of the entrance 2 where both the upper and lower doors 13 and 14 are closed. When the elevator 4 reaches the first floor, the motor 15 is started and rotates the drive shaft 16 via the chain 18a.

The drive shaft 16 raises the lower door 14 via the chains 18c and 18d, and at the same time raises the upper door 13 via the chain 18b at half the speed of the lower door 14.
Both doors 13, 14 are fully opened at the same time, and the motor 15 is stopped and its brake is applied to keep the first door 13, 14 open. When the car M enters the elevator 4 from the entrance 2, the brake of the motor 15 is released and both doors 13
14 descends against the balance weight 19 due to its own weight. When both doors 13,14 are closed, the elevator 4 rises. When the elevator 4 arrives at a predetermined floor, both doors 13, 14 open in the same manner as described above, and the car M leaves the elevator 4 and moves to the parking place. Car M on the upper floor
When going to the first floor, except for elevator 4 descending,
The same operation as in the above parking case is performed. If the driver accidentally drives the car M out of control before the elevator 4 arrives, the bumper of the car M will collide with the lower door 14, and the door device 10 will be in the state shown in FIG. 4. The lower door 14 is bent and deformed, and the guide shoe 14a is attached to the guide rail lla.
deviate from However, since the lower door 14 is closed, the locking portion 21b engages with the portion 20b by an engagement amount. Therefore, the strip portion 21a of each protection member 21 deforms together with the strip portion 20a of the mooring member 20 at both ends and stretches like a single steel cable, and does not receive all of the collision force as tensile stress. Prevent falling into the hoistway 3.

Since only tensile force acts on both the strip plate portions 20a and 21a, their cross-sectional area does not need to be so large, and the material does not need to be made of high quality. Note that the center portions of both protective members 21 are fixed to the panel surface of the lower door 14/ because
This is to prevent both protection members 21 from being separated into upper and lower parts due to a collision force.

Embodiment 2 FIG. 13 shows a door device 30 of the parking facility 1 in the second invention.
shows. M is a car.

The door device 30 is a four-door center-lateral opening type, and is provided at each entrance 2 of the parking facility 1, which is the same as in the previous embodiment, and its structure is shown in FIGS. 5 to 8. On the hoistway 3 side of entrance 2,
Two inner and outer hanger rails 31a, 31b along the upper edge
is fixed to the wall 5 via a bracket 31c, and a sill 32 is embedded in the floor 6 along the lower edge, and the bracket 31c is fixed to the sill 3 by an anchor bolt 31d.
2 are each protected from pulling force by an anchor plate 32a. A guide groove 32b is provided on the upper surface of the sill 32.
are formed at both ends, and a groove 32c having an L-shaped cross section is formed over the entire length except for the central portion. The side left door 33 and the number of people in the meeting door 34 are the fifth door.
In the figure, it opens to the left, and the meeting side stone door 35 and the side right door 36 open to the right. Side left and right doors 33.36
are hangers 33a fixed to the upper end surfaces, respectively.

Inner hanger rail 31 via 33b, 36a, 36b
A guide shoe 37a fixed to the lower end surface is guided by being slidably fitted into the guide groove 32b. Left and right doors on the meeting side 34.3
5 are hangers 34a fixed to the upper end surface, respectively;
34b, 35a.

The locking shoe 37b, which is suspended from the outer hanger rail 31b via the hanger rail 35b and is fixed to the lower end surface, is guided by being slidably engaged with the groove 32c. Each hanger 33a, 33b to 36a, 36b
, there are a double brim roller 38a and a roller 38 on the upper and lower sides, respectively.
b are rotatably attached to each inner and outer hanger rail 31a.

By holding 31b from above and below, the left and right doors 33, 34, 35, and 36 on the side and meeting sides are guided. Furthermore, hangers 34a, 34b.

Reverse-shaped locking pieces 39a are fixed to each of 35a and 35b, and an L-shaped engagement piece 39b corresponding to the locking piece 39 is fixed to the outer hanger rail 31b. When the left and right doors 34 and 35 are closed, the locking piece 39
The engagement amount a is engaged with the piece 39b. 40 is a protective member,
It consists of a plurality of strips bent into a chevron shape, and the upper end is each hanger 34a, 34b, 35a.
, 35b, each of the left and right doors 34. whose central part is the meeting side.
35, the lower end is fixed to each locking shoe 37b, respectively. The protective member 40, the locking piece 39a,
The amount of engagement is the piece 39b, the locking shoe 37b, the amount of engagement is the groove 32
The configuration consisting of C is the first feature of the second invention.

41 is a motor with a brake, and a sprocket 41 is attached to the output shaft.
a is fixed. 42 is a drive shaft to which four sprockets 42a, 42b, 42c, and 42d are fixed. Sprocket 42a has more teeth than sprocket 41a, and sprocket 42b has more teeth than sprocket 42.
c, half of 42d. 43 and 44 are both fixed shafts, and are connected to sprocket 43a and sprocket 4, respectively.
4a and 44b are rotatably supported. In the above sprockets, a chain 45a is wound around the sprockets 41a and 42a in a loop shape, while a chain 45b is wound around the sprockets 42b and 44a in a loop shape, with the upper line around the hanger 33b and the lower line around the sprockets 41a and 42a. are connected to the hanger 36b, and the chain 45c is looped around the sprockets 42c and 44b, with the upper line passing through the upper sprocket 43a to the hanger 34b, and the lower line passing through the lower sprocket. The chain 45d is connected to the hanger 35b via the chain 43a, and one end of the chain 45d is attached to the hanger 35b, and the other end is attached to the balance weight 46 via the sprockets 43a and 42d. The balance weight 46 is guided by a suitable guide (not shown) to be able to move up and down. Therefore, due to the rotation of the drive shaft 42, the side left door 33.゛Meeting number of people door 34, meeting side stone door 35, side right door 36
are opposite to each other and the left and right doors on the side 33.36
moves at half the speed of the left and right doors 34°35 on the meeting side. The weight of the balance weight 46 is the same as that of the entire door 33.
The frictional resistance is set to be slightly heavier than the frictional resistance of the doors 33 to 36, and urges all the doors 33 to 36 in the closing direction via the meeting side stone door 35. The door device 3o is equipped with an electrical equipment [50] shown in FIG. 10, which constitutes the second feature of the second invention. The brake-equipped motor 41 includes a squirrel-cage induction motor 41b and a spring-closed electromagnetic brake 41c. 51 is a battery for fire extinguishing equipment. 52 is a signal device that issues a signal to close the door in the event of a fire.

53 and 54 are contactors that open and close the door under normal conditions. Reference numerals 55 and 56 indicate command contacts for commanding the opening and closing of the door during normal operation. 57 is a limit switch contact that operates when the door opens, 58 is a limit switch contact that operates when the door closes, and 59 is a limit switch contact that decelerates the vehicle just before the door closes.

60.61 is a resistor, 62.63 is a rectifier, 64.65
is a transformer.

Next, the above door fittings! The action of 130 will be explained.

When a car M on the first floor is parked on an upper floor, the car M waits for the arrival of the elevator 4 in front of the entrance 2 where each door 33, 34, 35, 36 is closed.

When the elevator 4 reaches the first floor, the open command contact 55 automatically (or manually) closes, and the contactor 53 closes.
is excited (10th (b) rejuvenation).

Contact 53 in the circuit between motor 41b and brake 41c is closed. At the same time as the brake 41c is released, the motor 41
b starts and rotates the drive shaft 42 against the balance weight 46 via the chain 45a. The drive shaft 42 is
Each door 33, 34, 3 via chain 45h, 45C
Open 5.36.

When each door 33, 34, 35, 36 finishes opening, contact 57
is opened and the contactor 53 is demagnetized (10(b) rejuvenation),
Contact 53 opens. The motor 41b stops and the brake 4
1c comes into play. Car M goes from entrance 2 to elevator 4.
When you get into the vehicle, the close command contact 56 is automatically (or manually) closed, and the contactor 54 is energized (the 10th
(b) Rejuvenation), contact 54 in the brake 41c circuit
closes. The brake 41c is released, and the balance weight 46 uses its own weight to rotate the drive shaft 42 and motor 41 in the opposite direction. Each door 33,34゜35.36
moves in the closing direction. On the other hand, direct current is applied between one phase of the motor 41b via the transformer 64 to generate braking force. The braking force becomes stronger as the rotational speed increases, and each door 33, 34, 35, 36 stabilizes at a constant speed. At this time, since contact 59 is open, resistor 60.
61 are added in series. Each door 33, 34, 35
Contact 59 closes just before ゜36 finishes closing, and resistor 61
is shorted. Therefore, the braking force of the motor 41b becomes stronger, and each door 33, 34, 35° 36 is greatly decelerated. When each door 33, 34, 35, 36 is closed, the contact 58 is opened and the contactor 54 is demagnetized (10(b) rejuvenation), and the contact 54 is opened. The brake 41c is applied and the motor 41b is stopped. Each door 33, 34, 35.36
When the elevator 4 finishes closing, the elevator 4 rises, and when it reaches the designated floor, each door 33, 34, 3 of that floor is opened in the same way as above.
5.36 opens and car M leaves elevator 4. When the car M on the upper floor goes to the first floor, the same operation as in the case of parking is performed, except that the elevator 4 descends. FIG. 11 shows the relationship between the rotation speed and torque on the output shaft of the motor 41b when opening and closing each door 33, 34, 35.36, where the horizontal axis is the rotation speed and the vertical axis is the torque. Curve A shows when each door 33, 34, 35.36 is opened, that is, when three-phase alternating current is applied to the motor 41b.Curve B shows when each door 33, 34, 35.36 is closed. A case where resistors 60 and 61 are added in series is shown. If the torque of the difference between the weight of the balance weight 46 and the frictional resistance of each door 33, 34, 35° 36 is D, each door 33, 34, 35, 36 has a constant speed when opening, that is, close to the rated speed E. It will close at speed. Curve C shows when the resistor 61 is shorted just before each door 33, 34, 35, 36 closes. each door 3
3, 34, 35, and 36 are greatly reduced to a speed corresponding to the rotational speed F.

The above operations have been described for normal times, but if the driver accidentally causes the car M to run out of control before the elevator 4 arrives, the bumper of the car M may
．． 35, the door device 30 is in the state shown in FIG. 9, and the left and right doors 34, 35 and each protective member 4
0 is bent and deformed. However, since the locking shoe 37b engages with the groove 32c and the locking piece 39a engages with the piece 39b, each protective member 40 stretches like a single steel cable. All of the force in the mm direction is stopped as a tensile stress, and the automobile M is prevented from falling into the hoistway 3. The lower end of the protective member 4o is bent in the horizontal direction because it receives a larger horizontal force than the upper end.
Adjacent protective members 4 are fixed to the panel surface of
This is to prevent the 0s from being separated into left and right sides due to collision force. Further, in the event of a fire, the signal device 52 receives a signal from the fire extinguishing equipment and is activated to connect the battery 51 and demagnetize the contactors 53 and 54 at the same time. The battery 51 applies direct current to the motor 41b and also applies a direct current to the brake 4.
Cancel 1c. The motor 41b rotates in the state of curve B in FIG. 11, and each door 33, 34, 35, 36 is closed by a balance weight 46. Each door 33, 34, 3
5. When 36 is fully closed, the signal 52 is returned to its original state by a signal from a limit switch (not shown) to confirm that it is fully open, and the battery 51 is disconnected.

To prevent the motor 41b and brake 41c from being left energized.

(Effects of the Invention) Since the present invention has the above configuration, in the first invention, when the door of the entrance/exit is closed, both ends of the strip-shaped protective member fixed to the door are connected to the pair of entrance/exit doors. Since it is moored to the mooring member fixed to the opposite edge, the protective member can absorb all of the collision force of the automobile as tensile stress. Therefore, the protective member can prevent the vehicle from falling even if it is not large-scale or made of high-quality material.

Further, in the second invention, the acceleration of the door due to the balance weight or the like is suppressed by biasing the door in the closing direction using a balance weight or the like, and applying direct current to the motor to perform dynamic braking when the door closes. Therefore, when the door closes, there is no risk of it being damaged by impact force, or if it is a side-opening door, it will not open ajar, and even if someone or something gets in the doorway, there is no chance of it being strongly pinched by the door. It is safe from Therefore, there is an advantage that there is no need to use an expensive variable speed motor or control device.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the device of the present invention, and FIG. 1 is a front view of the door device in the first invention (a view taken along line I-I in FIG. 12), and FIG. 2 is a view taken along line n-n in FIG. Sectional view along the line, 3rd
The figure is a cross-sectional view taken along the line ■-■ in FIG. 1, FIG. -V line arrow view), Figure 6 is a plan view of the same, Figure 7 is a sectional view taken along the line ■-■ in Figure 5, Figure 8 is a sectional view taken along the line ■-■ in Figure 6, and Figure 9 The figure is a sectional view showing the operation of the main parts in the second invention,
10(a) and 10(b) are circuit diagrams of the electric device of the second invention, FIG. 11 is a diagram showing the relationship between the rotation speed and torque on the output shaft of the door opening/closing motor of the second invention, and FIG. FIG. 12 is a sectional view of a parking facility showing an embodiment of the first invention, and FIG. 13 is a sectional view of a parking facility showing an embodiment of the second invention. 1...Parking facilities, 2...Entrance/exit, 10
, 30...Door device, 14...Lower door, 20...Mooring member, 20b...Engagement amount is part, 21, 40... ...protective member, 21b...
...Locking part, 31b...Outer hanger rail, 32...Sill, 32c...Engagement amount is groove, 34...Meeting side Right door, 35...
・Meeting side stone door, 37b...Latching shoe, 3
9a...Locking piece, 39b...Engagement amount is one piece, 41...Motor with brake, 46...
・Balance weight, 50... Electric device. 3h (Q) Figure 13

Claims (2)

[Claims] (1) In a door device installed at a car entrance of a parking facility, a protective member is fixedly installed on the door to resist collisions of cars, and a protective member is installed near the opposite side that partitions the rectangular opening of the doorway. A mooring member for mooring is fixedly installed, and the protective member has a locking part at both ends of the strip plate,
A door device for a parking facility, wherein the mooring member has an engagement receiving portion with which the locking portion engages when the door is closed. (2) In a door device installed at a car entrance of a parking facility, a protective member that resists collisions with cars is fixed to the door, and the protective member is moored near the opposite side that partitions the rectangular opening of the doorway. A mooring member is fixedly installed for the door, the protective member has a locking portion at both ends of the strip, and the mooring member has an engagement receiving portion with which the locking portion engages when the door is closed. The door is biased in the closing direction by a balance weight, etc., and when the motor opens the door and closes the door, DC is applied to the motor to generate braking force, and the door is biased by the balance weight, etc. A door device for a parking facility, characterized in that it is equipped with an electric device that suppresses acceleration.