JPH0430511B2 - - Google Patents

Description

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

(Prior Art) Conventionally, in parking facilities equipped with a vehicle transport machine such as a car elevator, a door that opens and closes mechanically is provided at the vehicle entrance leading to the hoistway, pit, etc. of the transport machine. A car that wants to get on a transport machine to enter or exit the warehouse will wait in front of the door for the transport machine to arrive. When the transport machine arrives, the door will open, and the car will get on the transport machine and drive to the designated parking spot or parking spot. It is transported to the floor exit. On the other hand, especially in multi-story parking garages, fire extinguishing equipment is installed, and in the event of a fire, it is legally required that the doors automatically close with a signal from the fire extinguishing equipment even if the power supply is destroyed. Therefore, some doors are biased in the closing direction by a balance weight.
The brake or latch of the door motor is released by 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 when the driver who is waiting for the arrival of the transport machine accidentally drives the car out of control, the car locks the door. There is a risk of them breaking through and falling into the hoistway, pit, etc. Therefore, in order to make the door resistant to car collisions, the door would have to have an extremely large structure, which would require too much installation space and cost.

In addition, as a second problem, in the case where the door is biased in the closing direction, the weight of the balance weight 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 doesn't matter if a part of the door is damaged as long as it maintains its shutoff state, as the purpose will be achieved, but there was a problem in operational tests at the time of completion that damage had to be prevented. In particular, for central side-opening doors, the left and right doors are connected by a chain 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 The door may stop slightly open due to damage or reaction from a collision. In order to prevent these problems, an expensive variable speed motor and control device are required.

In order to solve such conventional problems, the first object of the present invention is to prevent a car from falling into a hoistway, pit, etc. with a simple structure. Furthermore, in the second invention of the present application, in addition to the first object, when the door is biased in the closing direction, the simple structure prevents the door from being damaged by the impact when closing. The second purpose is to

(Means for Solving the Problems) In order to achieve the above-mentioned first object, the solving means of the first invention of the present application is such that a rectangular opening for automobiles is provided in a parking facility, and the entrance/exit is opened vertically. Alternatively, the present invention is assumed to be a door device for a parking facility equipped with a door that opens and closes by sliding in the left and right directions. and a band disposed on the door in a direction substantially perpendicular to the sliding direction of the door, a center portion of which is fixed to the door, and both end portions of which are located near opposing sides of the rectangular opening of the doorway; a plate, and an engaging part provided at both ends of the strip plate, and a protective member for resisting a collision of a car, and a member opposite the rectangular opening of the entrance/exit where the engaging part is located. pair of mooring members each having an engagement receiving part that is fixed oppositely to each other near the side of the door, and each of which has an engagement receiving part that is irremovably engaged with the corresponding engagement part when the door is closed; The protective member is arranged so that when the door is closed, the engaging portions at both ends thereof are moored to both the mooring members and receive a collision from the automobile.

Furthermore, in order to achieve the second object in addition to the first object, the solution means of the second invention of the present application is such that the doorway is opened vertically in a square-opening automobile doorway provided in a parking facility. Alternatively, the present invention assumes a door device for a parking facility in which a door that opens and closes by sliding in the left-right direction is biased in the closing direction by a balance weight or the like. and a band disposed on the door in a direction substantially perpendicular to the sliding direction of the door, a center portion of which is fixed to the door, and both end portions of which are located in the vicinity of opposing sides of the rectangular opening of the doorway; a plate, and engaging portions provided at both ends of the strip plate, and comprising a protective member for resisting a collision of a motor vehicle, and a portion of the rectangular opening of the entrance/exit where the engaging portion is located. pair of mooring members each having an engagement receiving part that is fixed oppositely to each other near the side of the door, and each of which has an engagement receiving part with which the corresponding engagement part is irremovably engaged when the door is closed; The protective member is arranged so that when the door is closed, the engaging portions at both ends thereof are moored to both the mooring members and receive a collision from the automobile. Furthermore, a motor with a brake that opens the door, and a control device that controls the motor so as to apply a direct current to the motor when closing the door to generate a braking force that resists the closing force of the balance weight or the like. It shall be equipped with the following.

(Function) In the first invention, even if a car collides with a closed door and the door is damaged, the protective member whose engaging portions at both ends are moored to the mooring members will not be deformed. It stretches like a steel cable and absorbs all collision forces as tensile stress. Therefore, the strip of 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.

Further, in the second invention, in addition to the above-described effect, when the door is closed while being accelerated by a balance weight or the like, a DC 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.

(Embodiments of the first invention) Hereinafter, embodiments of the first invention will be described based on FIGS. 1 to 4 and FIG. 12. Note that this example shows a case where the door is not biased in the closing direction.

FIG. 12 shows a door device 1 according to an embodiment of the first invention.
1 shows a parking facility 1 with 0. The parking facility 1 is a multi-story parking lot having multiple floors, and has a car elevator 4 in a hoistway 3 that connects car entrances 2 on 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.
As shown in the figure. In Figures 1 to 3, entrance 2
, the left, right and upper sides of a rectangular opening provided in a wall 5 are covered with a three-sided frame 2a. A pair of pillars 1 are installed along the left and right edges of the entrance/exit 2 on the hoistway 3 side.
1 is erected and connects the tops of both columns 11.
2 is fixed to the wall 5 via a bracket 12a. 13 is an upper door, and 14 is a lower door.
It is provided so as to be slidable in the vertical direction between guide rails 11a fixed to the guide rails 1. Reference numeral 15 denotes a motor with a brake, which is fixed to the upper beam 12, and a sprocket 15a is fixed to the output shaft of the motor 15. 16 is a drive shaft, which is rotatably attached to the upper beam 12. A sprocket 16a having more teeth than the sprocket 15a and three sprockets 16b each having the same number of teeth are fixed to the drive shaft 16. Further, sprockets 17a and 17b are rotatably attached to the upper beam 12, and sprockets 13b and 13c are rotatably attached to the upper door 13, respectively. In the above sprockets, sprockets 15a and 1
A chain 18a is wound around the chain 6a in a loop shape. On the other hand, the chain 18b has one end connected to the upper beam 1.
2 and the other end is connected to the sprocket 13.
c, 13b, 17a and 16b to the balance weight 19. One end of the chain 18c is attached to the lower door 14, and the other end is attached to the balance weight 19 via the sprockets 17a and 16b.
Furthermore, 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 set to (half of the weight of the upper door 13) +
(Weight of lower door 14) + (chain 18b, 18c,
The weight is set to be slightly lighter than the weight of 18d.

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

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 an engagement receiving part 20b having a C-shaped cross section at one end of a band plate part 20a bent in a Z-shape, and the other end is fixed to the wall 5 with a bolt 20c and a nut 20d. has been done. 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 20. The protective member 21 includes engagement parts 21b at both ends of a band plate part 21a bent into a chevron shape, which irremovably engages with the engagement receiving part 20b when the lower door 14 is closed. is fixed to the panel surface of the lower 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 parking car M on the first floor on the upper floor,
The car M arrives at the elevator 4 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. This rotation of the drive shaft 16 causes the chain 1
Since the lower door 14 is raised via the chain 18b and the upper door 13 is raised at half the speed of the lower door 14 at the same time, both the doors 13 and 14 are fully opened at the same time. When it comes to full throttle,
The motor 15 is stopped and its brake is applied, keeping both doors 13 and 14 open. When the car M enters the elevator 4 from the entrance 2, the motor 15
The brake is released, and both doors 13 and 14 descend against the balance weight 19 due to their own weight.
When both doors 13 and 14 close, the elevator 4 ascends. When elevator 4 arrives at the predetermined floor,
Both doors 13 and 14 are opened in the same manner as above, and the automobile M leaves the elevator 4 and moves to the parking place. When moving the car M on the upper floor to the first floor, the same operation as in the case of parking is performed, except that the elevator 4 is lowered.

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 comes off the guide rail 11a. However, since the lower door 14 is closed, the engaging portion 21b is irremovably engaged with the engaging receiving portion 20b. Therefore, the strip plate portion 21a of each protection member 21 is similar to the strip plate portion 2 of the mooring member 20 at both ends.
It deforms with 0a and stretches like a single steel rope,
All of the collision force is received as tensile stress, and the automobile M is prevented from falling into the hoistway 3. Since only tensile force acts on both strip plate parts 20a and 21a,
Their cross-sectional area may be that large, and their materials need not be of high quality. Note that fixing the center portions of both protection members 21 to the panel surface of the lower door 14 is also effective in preventing both protection members 21 from being separated into upper and lower parts due to a collision force.

(Embodiment of the second invention) Hereinafter, an embodiment of the second invention will be described based on FIGS. 5 to 11 and FIG. 13.

FIG. 13 shows a door device 3 according to an embodiment of the second invention.
1 shows a parking facility 1 with 0. M is a car.

The door device 30 is a four-door center-lateral opening type, and is provided at each entrance/exit 2 of the same parking facility 1 as in the previous embodiment, and its structure is shown in FIGS. 5 to 8. Figure 5~
In FIG. 8, on the hoistway 3 side of the entrance/exit 2, there are two inner and outer hanger rails 31a, 3 along the upper edge.
1b is fixed to the wall 5 via a bracket 31c, and a sill 32 is attached to the floor 6 along the lower edge.
embedded in. The bracket 31c is protected from pulling force by an anchor bolt 31d, and the sill 32 is protected by an anchor plate 32a. Guide grooves 32b are formed at both ends of the upper surface of the sill 32, and an engagement receiving 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 meeting side left door 34 open to the left in FIG. 5, and the meeting side right door 35 and the side right door 36 open to the right. The left and right side doors 33, 36 each have hangers 33a, 3 fixed to their upper end surfaces, respectively.
A guide shoe 37a, which is suspended from the inner hanger rail 31a via 3b, 36a, and 36b and is fixed to the lower end surface, is connected to the guide groove 32b.
guided by a slidable fit. The left and right doors 34, 35 on the meeting side have hangers 34a, 34b, 35 fixed to their upper end surfaces, respectively.
The engagement shoe 37b, which is suspended from the outer hanger rail 31b via a and 35b and fixed to the lower end surface, is guided by being slidably engaged with the engagement receiving groove 32c. Each hanger 3
Both collar rollers 38a and rollers 38b are rotatably attached to the upper and lower sides of 3a, 33b or 36a, 36b, respectively, and by sandwiching the inner and outer hanger rails 31a, 31b from the upper and lower directions, the left and right side and meeting side Each door 33, 34,
I will guide you to 35 and 36. Furthermore, the hanger 34
a, 34b, 35a, 35b are each inverted L
An L-shaped engagement piece 39a is fixed to the outer hanger rail 31b, and an L-shaped engagement receiving piece 39b is fixed to the outer hanger rail 31b in correspondence with the engagement piece 39a. At this time, the engagement piece 39a engages with the engagement receiving piece 39b. 40 is a protective member,
Consists of multiple strips bent into a chevron shape,
The upper end is each hanger 34a, 34b, 35a, 35
In b, the left and right doors 34, 35 whose central part is the meeting side
The lower end is fixed to each engagement shoe 37b on the panel surface of the engagement shoe 37b. 41 is a motor with a brake, and the output shaft of the motor 41 has a sprocket 41.
a is fixed. 42 is a drive shaft, and the drive shaft 42 has four sprockets 42a, 42b, 4
2c and 42d are fixed. Sprocket 4
Sprocket 2a has more teeth than sprocket 41a, and sprocket 42b has more teeth than sprocket 4.
It is half of 2c and 42d. 43 and 44 are both fixed shafts, and a sprocket 43a and sprockets 44a and 44b are rotatably supported on each of them. In the sprockets mentioned above, a chain 45a is looped around the sprockets 41a and 42a. On the other hand, chain 4
5b is wound around the sprockets 42b and 44a in a loop, and the upper line is connected to the hanger 33b.
The lower lines are respectively connected to hangers 36b. Also, chain 45c is connected to sprocket 4.
2c and 44b, the upper line is connected to the hanger 34b via the upper sprocket 43a, and the lower line is connected to the hanger 35b via the lower sprocket 43a. Furthermore, 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 and the meeting side left door 34 are rotated.
The meeting side right door 35 and the side right door 36 are opposite to each other, and the left and right doors 33, 3 on the side side
6 moves at half the speed of the left and right doors 34 and 35 on the meeting side. The balance weight 46 is set to have a weight slightly heavier than the frictional resistance of all the doors 33-36, and biases all the doors 33-36 in the direction of closing via the right door 35 on the meeting side. The door device 30 includes a control device 50 shown in FIG. 10, which is a feature of the second invention. In FIG. 10, the brake-equipped motor 41 consists of a squirrel-cage induction motor 41b and a springing close-type 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 during normal times. Reference numerals 55 and 56 are command contacts for commanding opening and closing of the door during normal operation, respectively. 57 is a limit switch contact that operates when the door is opened; 58 is a limit switch contact that operates when the door is closed;
9 is a limit switch contact for decelerating the door just before it closes. 60 and 61 are resistors,
62 and 63 are rectifiers, and 64 and 65 are transformers.

Next, the operation of the door device 30 will be explained.

When parking car M on the first floor on the upper floor,
The car M waits for the elevator 4 to arrive in front of the entrance 2, where the doors 33, 34, 35, and 36 are closed. When the elevator 4 reaches the first floor, the open command contact 55 is automatically (or manually) closed, and the contactor 53 is energized (see Figure 10b).
Contact 5 in the circuit between motor 41b and brake 41c
3 closes. As a result, the motor 41b starts at the same time as the brake 41c is released, and rotates the drive shaft 42 against the balance weight 46 via the chain 45a. By the rotation of the drive shaft 42, each door 3 is moved through the chains 45b and 45c.
3, 34, 35, 36 open. Each door 33,3
4, 35, and 36 have finished opening, the contact 57 is opened, the contactor 53 is demagnetized (see Figure 10b), and the contact 57 is opened.
3 opens. This causes the motor 41b to stop and the brake 41c to act. When the automobile M enters the elevator 4 from the entrance 2, the close command contact 56 is automatically (or manually) closed, and the contactor 54 is energized (see Fig. 10b).
Contact 54 in the circuit of brake 41c closes. As a result, 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, a DC current is applied between two phases of the motor 41b via the transformer 64 to generate a 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, resistors 60 and 61 are added in series. Just before each door 33, 34, 35, 36 finishes closing, contact 59 closes 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 has been closed, the contact 58 is opened, the contactor 54 is demagnetized (see Figure 10b), and the contact 54 is opened. As a result, the brake 41c is applied and the motor 41b is stopped. When each door 33, 34, 35, 36 finishes closing, the elevator 4 ascends, and when it arrives at a predetermined floor, each door 33, 3 of that floor is opened in the same manner as above.
4, 35, and 36 open, and car M is in elevator 4.
leave. When moving the car M on the upper floor to the first floor, the same operation as in the case of parking is performed, except that the elevator 4 is lowered. 1st
FIG. 1 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 is for each door 33, 34, 3
When opening 5, 36, in other words, 3 is applied to the motor 41b.
Shows when phase alternating current is applied. Curve B shows the case when the resistors 60, 61 are added in series when the doors 33, 34, 35, 36 are closed. 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
will close at a constant speed close to the opening speed, that is, the rated speed E. Curve C is for each door 3
Resistor 6 just before 3, 34, 35, 36 closes
1 is shorted. Each door 33, 34,
35 and 36 are greatly reduced to a speed corresponding to the rotational speed F.

The above operations are for normal times, but
Before elevator 4 arrived, the driver accidentally left car M.
When the car runs out of control, the bumper of the car M collides with the left and right doors 34, 35 on the meeting side, and the door device 30 becomes the state shown in FIG. The protective member 40 bends and deforms. However, since the engagement shoe 37b and the engagement piece 39a are irremovably engaged with the engagement receiving groove 32c and the engagement receiving piece 39b, respectively, each protective member 40 stretches like a single steel cable. , the collision force is all received as tensile stress, and the car M moves towards the hoistway 3.
prevent falling. Note that the lower end of the protective member 40 is bent in the horizontal direction because it receives a larger horizontal force than the upper end. In addition, the left and right doors 34 whose center part is the meeting side,
35 is also effective in preventing adjacent protection members 40 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 operates, connects the battery 51 and demagnetizes the contactors 53 and 54 at the same time. Battery 51 is
Direct current is applied to the motor 41b, and the brake 41c is released. The motor 41b is the 11th
It rotates in the state of curve B in the figure, and each door 33, 34,
35 and 36 are closed by a balance weight 46. When each door 33, 34, 35, 36 is fully closed, a signal from a limit switch (not shown) to confirm that the door is fully closed returns the signal 52 to its original state, disconnects the battery 51, and disconnects the motor 41b and brake 41c. Prevent it from being left energized.

(Effect of the invention) As described above, in the first invention, when the door of the doorway is closed, both ends of the strip-like protective member fixed to the door are fixed to the pair of opposing edges of the doorway. Since the protection member is moored to the mooring member that is attached to the vehicle, the protection member can receive all of the collision force of the automobile as tensile stress. Therefore, the protective member does not need to be large-scale or made of high-quality material, and can prevent the automobile from falling with a simple structure.

In the second invention, in addition to the effects of the first invention, when the door is biased in the closing direction by a balance weight or the like, when the door closes, DC current is applied to the motor to perform dynamic braking. By doing this, the acceleration of the door due to balance weights and the like is suppressed, so when the door closes, there is no risk of it being damaged by impact force or, in the case of a side-opening door, being left ajar. Even if someone or something gets in the doorway, it is safe because it will not get caught in the door. Therefore, there is no need to use an expensive variable speed motor or control device, and there is an advantage that the process can be performed easily.

[Brief explanation of drawings]

FIG. 1 is a front view of the door device according to the embodiment of the first invention (a view taken along the - line in FIG. 12), FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG.
4 is a sectional view taken along the - line in the figure; FIG.
The figure is a front view of the door device in the embodiment of the second invention (a view taken along the - line in Fig. 13), Fig. 6 is a plan view thereof, and Fig. 7 is a sectional view taken along the - line in Fig. 5;
Figure 8 is a sectional view taken along the - line in Figure 6;
The figure is a sectional view showing the operation of the main parts in the embodiment of the second invention, Figures 10a and b are electrical circuit diagrams of the control device in the embodiment of the second invention, and Figure 11 is the door opening/closing diagram of the second invention. Fig. 12 is a cross-sectional view of a parking facility showing an embodiment of the first invention, and Fig. 13 is a diagram showing the relationship between the rotation speed and torque of the output shaft of the motor. FIG. 1...Parking facilities, 2...Entrance/exit, 10, 30...
...Door device, 14...Lower door, 20...Mooring member, 20b...Engagement receiver, 21, 40...Protection member, 21b...Engagement part, 31b...Outer hanger rail, 32...Sill , 32c... engagement receiving groove,
34...Left door on the meeting side, 35...Right door on the meeting side, 37b...Engagement shoe, 39a...Engagement piece.

Claims (1)

[Scope of Claims] 1. A door device for a parking facility in which a rectangular automobile entrance and exit provided in the parking facility is provided with a door that opens and closes by sliding the entrance and exit vertically or horizontally, comprising: a strip plate disposed on the door in a direction substantially perpendicular to the sliding direction of the door, a central portion of which is fixed to the door, and both end portions of which are located near opposing sides of the rectangular opening of the doorway; an engaging portion provided at both ends of the strip plate, and a protective member for resisting a collision of an automobile; and a protective member provided near opposing sides of the rectangular opening of the doorway where the engaging portion is located. and a pair of mooring members each having an engagement receiving part that is fixedly arranged to face each other, and with which the corresponding engagement part is irremovably engaged when the door is closed, the protective member A door device for a parking facility, characterized in that when the door is closed, the engaging portions at both ends are moored to both the mooring members and are arranged so as to catch a collision of a car. 2. Parking equipment in which a square-opening entrance for automobiles is provided with a door that opens and closes by sliding vertically or horizontally through the entrance and is biased in the closing direction by a balance weight, etc. In the door device, the door is disposed on the door in a direction substantially perpendicular to the sliding direction of the door, a center portion is fixed to the door, and both end portions are located in the vicinity of opposing sides of the rectangular opening of the doorway. a protective member for resisting a collision of a motor vehicle, the member having a strip plate provided at both ends of the strip plate, and an engaging portion provided at both ends of the strip plate; paired mooring members each having an engagement receiving part that is fixed oppositely to each other in the vicinity of a side of the door, and each of which has an engagement receiving part in which the corresponding engagement part engages irremovably when the door is closed. The protective member is arranged so that when the door is closed, the engaging portions at both ends thereof are moored to both the mooring members and receive a collision from a car, and the protective member is equipped with a brake for opening the door. The present invention is characterized by comprising a motor, and a control device that controls the motor so as to apply a direct current to the motor when closing the door to generate a braking force that resists the closing force of the balance weight or the like. Parking equipment door device.