JP2007191259A - Sound insulation device for elevator car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound insulation device for an elevator car capable of reducing a capacity of an operation means. <P>SOLUTION: The sound insulation device for the elevator car is provided with an operation piece 6 movably mounted at least one of an upper end of a door 3 capable of opening/closing an entrance/exit of a car body 2, a lower end and a side end and closing a clearance of the car body 2 and the door 3; a guide means (7a) for guiding movement of the operation piece 6; an operation means (8) provided on one of the car body 2 and the operation piece 6 and pressing the operation piece 6 to the car body 2; a returning means for giving returning force to the operation piece in a fixed position direction; and a power source means for feeding electric power for driving the operation means (8). Since the clearance of the car body 2 and the door 3 is closed by the operation piece 6 displaceable by relatively small drive force, the capacity of the operation means (8) can be reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a soundproofing device for an elevator car that reduces sound transmitted to the elevator car when the elevator car is raised and lowered.

As this type of prior art, a closing means capable of closing a gap between the car body and at least one of the upper end portion, the lower end portion and the side end portion of the door, for example, a shielding wall provided integrally with the lower end of the door And an operating means for operating the closing means when the elevator car is moving at a speed higher than or equal to a predetermined speed, and when the elevator car reaches a predetermined value determined in advance, There has been proposed a device that is pressed against the car body side to reduce the sound transmitted to the elevator car when the elevator car is raised or lowered (see, for example, Patent Document 1). Note that the closing means described in this patent document is not limited to the shielding wall described above, but is provided integrally with the door.
JP 2001-322786 A (paragraph numbers 0014 to 0023, FIG. 1)

  However, the above-mentioned elevator car soundproofing device has a closing means capable of closing the gap between the car body and the door, that is, the shielding wall is provided integrally with the door, and the operating means is used when the gap is closed. At the same time, the entire door had to be displaced toward the car body. Thus, in order to displace a relatively heavy door, it is necessary to increase the capacity of the operating means, which is problematic in terms of installation space and cost.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator car soundproofing device capable of reducing the capacity of the operating means.

  To achieve the above object, the present invention is provided in an elevator car body having an entrance and an elevator car having a door capable of opening and closing the entrance, and reduces noise transmitted to the elevator car when the elevator car is raised and lowered. In an elevator car soundproofing device, an operating piece movably attached to at least one of an upper end, a lower end and a side end of the door, and closing the gap between the car body and the door, and the operating piece Guide means for guiding the movement of the car, actuating means for pressing the actuating piece against the car body, and a return force applied to the actuating piece in a fixed position direction. It is characterized by comprising return means and power supply means for supplying electric power for driving the operating means.

  In the present invention configured as described above, when the elevator car is moved up and down, the operating piece that is movably attached to the door by the operating means is displaced, and the operating piece is pressed against the car body so that the gap between the car body and the door is increased. Close and reduce the sound transmitted to the elevator car. On the other hand, when the elevator car is stopped, the operating piece is returned to a fixed position, i.e., a position away from the car body, by the return force acting on the operating piece by the return means, so that the door can be opened and closed. Since the gap between the car body and the door is closed by the operating piece that can be displaced with a relatively small driving force in this way, it operates compared to the conventional one that displaces the entire door to the car body side. The capacity of the means can be made small.

  The present invention can reduce the sound transmitted to the elevator car by closing the gap between the car main body and the door with a small-capacity operating means, and thus can save space for the apparatus and reduce the cost. Reduction can be achieved.

  Embodiments of an elevator car soundproofing apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a first embodiment of a soundproofing device for an elevator car according to the present invention, FIG. 2 is a cross-sectional view showing a state in which a gap is closed by the operating piece of FIG. 1, and FIG. 4 is a side view showing a state in which the gap is closed by the operating piece of FIG. 1, and FIG. 5 is a front view of an elevator car equipped with a soundproofing device.

  As shown in the figure, the elevator car 1 includes an elevator car body 2 having an entrance and a door 3 that can open and close the entrance. The door 3 is a double-open door, and is configured to be closed and opened along the threshold 5 by the driving device 4.

  The elevator car 1 is movably attached to the outer periphery of the door 3, that is, the upper end portion, the lower end portion, and the side end portion as a soundproof device, and the operation piece 6 that closes the gap between the car body 2 and the door 3; Guide means for guiding the movement of the operating piece 6, for example, a support 7 a provided on the door 3, an elongated hole 7 b formed in the operating piece 6 and through which the support 7 a is inserted, and provided in the car body 2. , An operating means for pressing the operating piece 6 against the car body 2, for example, an electromagnet 8, and a returning means for applying a returning force to the operating piece 6 in a fixed position direction, for example, interposed between the operating piece 6 and the car body 2. Spring 9, control means for controlling the operation of the electromagnet 8, for example, the control unit 10 a and the speed detection unit 10 b, and power supply means for supplying electric power for driving the electromagnet, for example, a pulley 11 provided on the elevator car 1. By the rotational movement of And a and energy conversion unit 12 for converting into electric energy, and the buffer member 13 to be attached to the abutment surface of the car body 2 operating piece 6 viable to kinetic energy.

  The elevator car 1 is connected to a hoisting machine (not shown), moves up and down in a hoistway formed in the building according to the driving of the hoisting machine, and when the elevator car 1 stops at the landing, the door 3 is silled by the driving device 4. The door is opened along 5 and passengers can get on and off. Thereafter, for example, the elevator car 1 starts moving in accordance with the destination floor registration made by a passenger who has entered the elevator car 1. And if the speed detection part 10b detects that the raising / lowering speed of the elevator car 1 reached the predetermined value, the control part 10a will energize the electromagnet 8 and will attract | suck the action piece 6 to the car main body 2 direction. In response to this suction, the operating piece 6 overcomes the repulsive force of the spring 9 and is displaced in the direction of the car body 2 and then comes into close contact with the car body 2 as shown in FIGS. At this time, the displacement of the operating piece 6 is guided by a support 7 a provided on the door 3 and a long hole 7 b formed in the operating piece 6. As described above, the gap between the car body 2 and the door 3 is closed by the operating piece 6, so that the sound transmitted to the elevator car 1 when the elevator car 1 moves up and down is reduced.

  Next, when the elevator car 1 approaches the target floor and starts decelerating, and the speed detection unit 10b detects that the elevator car 1 has reached the predetermined speed, the control unit 10a demagnetizes the electromagnet 8. In response to the demagnetization of the electromagnet 8, the operating piece 6 returns to a fixed position, that is, a position away from the car body 2, as shown in FIGS. .

  According to the present embodiment, the operation piece 6 that can be displaced with a relatively small driving force closes the gap between the car body 2 and the door 3 to reduce the sound transmitted to the elevator car 1. The capacity of the electromagnet 8 as the means can be made small, which can save the apparatus space and reduce the cost. Further, since the displacement of the operation piece 6 due to the biasing and demagnetization of the electromagnet 8 is guided by the support 7a and the long hole 7b which are guide means, the displacement operation can be made smooth. Furthermore, since the electromagnet 8 is driven by the electric power that can be converted from the kinetic energy generated by the rotational movement of the pulley 11 to the electric energy by the energy conversion unit 12, the operating piece 6 and the electromagnet 8 are not required from the outside. Can be driven. Furthermore, by mounting the buffer member 13 on the contact surface of the operating piece 6 with the car body 2, the impact when the operating piece 6 comes into contact with the car body 2 is reduced, the generation of impact sound and damage to the device. Can be prevented.

  In the present embodiment, the example in which the operating piece 6 is attached to each of the upper end portion, the lower end portion, and the side end portion of the door 3 has been shown, but any one of the upper end portion, the lower end portion, and the side end portion of the door 3 is shown. It is good also as a structure attached to one place. In the present embodiment, the electromagnet 8 is used as the actuating means. However, any means capable of displacing the actuating piece 6 such as a motor, an actuator, or a solenoid may be used. Further, in the present embodiment, the electromagnet 8 which is an operating means is provided in the car body 2. However, for example, when the contact portion with the operating piece of the car body 2 is formed of a magnetic material, the electromagnet 8 is provided in the operating piece. May be. Further, in this embodiment, the controller 10 a and the speed detector 10 b detect the elevator car 1 ascending / descending speed to control the energization and demagnetization of the electromagnet 8, and the operating piece 6 creates a gap between the car body 2 and the door 3. For example, the relationship between the power generation amount of the energy conversion unit 12 and the noise level is measured in advance, and when the elevator car 1 starts moving and reaches a noise level that requires sound insulation, The performance of the electromagnet 8, the spring 9 and the energy conversion unit 12 so that a certain electromagnet 8 can displace the operating piece 6 and generate a predetermined power generation amount necessary to overcome the repulsive force of the spring 9 and press it against the car body 2. In this case, the control means for controlling the operation of the above-described operation means, that is, the control unit 10a and the speed detection unit 10b can be eliminated. Further, the same soundproofing effect can be obtained even when power is supplied from the outside without using the energy conversion unit 12. However, the control part 10a speed detection part 10a is required.

  FIG. 6 is a transverse sectional view showing a second embodiment of the soundproofing device for an elevator car according to the present invention, and FIG. 7 is a transverse sectional view showing a state in which the gap is closed by the operating piece of FIG. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was shown in FIGS. 1-5 mentioned above.

  As shown in FIGS. 6 and 7, in the soundproofing device of the second embodiment, a return means for applying a return force to the operating piece 6 in the fixed position direction includes a support 17 a provided on the door 3, and a cage on the operating piece 6. It is formed with an upward inclination toward the main body, and includes a long hole 17b through which the support 17a is inserted, and these support 17a and long hole 17b guide the movement of the operating piece 6. It also has a guide means.

  In the second embodiment, when the electromagnet 8 is energized and the operating piece 6 is attracted in the direction of the car body 2, the operating piece 6 is displaced in the direction of the car body 2 in response to this suction. Then, it is displaced in a direction that rises diagonally to the right in the figure by a long hole 17b that is inclined upward toward the support body 17a and the car body 2, and then, as shown in FIG. In close contact. On the other hand, when the electromagnet 8 is demagnetized, the operating piece 6 is guided by the support body 17a and the elongated hole 17b by its own weight, falls in the diagonally lower left direction in the figure, and moves away from the fixed position, that is, the car body 2 as shown in FIG. Returning to the position enables the door 3 to be opened and closed.

  In the second embodiment, the same effect as that of the first embodiment described above can be obtained, and since the spring constituting the return means is not required in the first embodiment, the number of parts is reduced and the cost is reduced. Can be planned.

BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional view which shows 1st Embodiment of the soundproofing apparatus of the elevator car of this invention. It is a cross-sectional view which shows the state which closed the clearance gap by the action | operation piece of FIG. It is a side view which shows the state which the operation piece of FIG. 1 separated from the door. It is a side view which shows the state which closed the gap | interval with the action | operation piece of FIG. It is a front view of an elevator car provided with a soundproofing device. It is a cross-sectional view which shows 2nd Embodiment of the soundproofing apparatus of the elevator car of this invention. It is a cross-sectional view which shows the state which closed the gap | interval with the action | operation piece of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car door 2 Car main body 3 Door 4 Drive device 5 Sill 6 Actuation piece 7a, 17a Support body (guide means)
7b, 17b Slot (guide means)
8 Electromagnet (actuating means)
9 Spring (return means)
10a Control unit (control means)
10b Speed detector (control means)
11 pulley 12 energy converter

Claims (7)

In an elevator car soundproofing device that is provided in an elevator car body having an doorway and an elevator car having a door that can open and close the doorway, and that reduces noise transmitted to the elevator car when the elevator car is raised and lowered,
An operating piece that is movably attached to at least one of the upper end, the lower end, and the side end of the door and closes the gap between the car body and the door, and guide means for guiding the movement of the operating piece. And an actuating means provided on one of the car body and the actuating piece, pressing the actuating piece against the car body, a restoring means for applying a restoring force to the actuating piece in a fixed position direction, and the actuating means A soundproofing device for an elevator car, comprising power supply means for supplying power for driving the vehicle.   2. The soundproofing device for an elevator car according to claim 1, further comprising control means for controlling the operation of the operating means.   2. The soundproofing device for an elevator car according to claim 1, wherein the operating means comprises an electromagnet.   2. The soundproofing device for an elevator car according to claim 1, wherein the return means comprises a spring interposed between the operating piece and the car body.   2. The elevator according to claim 1, wherein the return means comprises a support provided on the door, and an elongated hole through which the operating piece is inserted while being inclined with respect to the operating piece. Soundproofing device for the basket.   6. The soundproofing device for an elevator car according to claim 5, wherein the support body and the elongated hole also serve as the guide means.   2. The soundproofing device for an elevator car according to claim 1, wherein the power source means has an energy conversion unit for converting the kinetic energy of the elevator into electric energy.

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