JP5219027B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device that is provided in an elevator car and has a mechanical safety device and a non-contact safety device, and more particularly, an elevator door that is easy to additionally provide a non-contact safety device. Relates to the device.

  A safety device is provided at the door of the elevator to prevent an accident that may cause injury when a passenger is caught in the door. The operation system of this type of safety device is roughly classified into a contact type that operates by mechanical contact and a non-contact type that operates using a non-contact sensor.

  In the contact-type safety device, a safety shoe is provided that protrudes from the door-end side end portion of the door panel, and the door is reopened by detecting a displacement when the safety shoe contacts the body of the passenger and moves backward.

  On the other hand, in a non-contact type safety device, a projector is provided at the door end of one door panel, and a light receiver is provided at the door end of the other door panel. When it is blocked, the door is reopened.

General elevators use either mechanical (contact type) or electric (non-contact) safety devices alone, or combine them to prevent malfunctions and malfunctions and improve reliability. (See Patent Document 1 and Patent Document 2).
JP 2003-118959 A JP-A-11-322238

  By the way, in the conventional elevator as described above, the non-contact type safety device is directly attached to the car frame (car entrance / exit column) or the door panel of the car. For this reason, when it is going to attach a non-contact-type safety device to a passenger car additionally, it is necessary to process a door panel and a car frame newly. Therefore, when attaching a non-contact type safety device to an existing car, an operator needs to enter the elevator hoistway and perform installation work. Such attachment work is time consuming and labor intensive and is dangerous.

  The present invention has been made in consideration of such points, and when a non-contact type safety device is additionally attached to a car, the non-contact type safety device can be easily installed without an operator entering the hoistway. An object of the present invention is to provide an elevator door device that can be mounted.

The present invention relates to an elevator door device provided in an elevator car, a pair of door panels each having a door end portion, a door end portion of at least one of the door panels, and an obstacle. A mechanical safety device having an operating portion for detecting an obstacle by mechanical contact, a connecting portion for connecting the operating portion to the door panel, and a door contact side of the door panel, which is provided in parallel with the mechanical safety device. A non-contact type safety device having a non-contact type sensor for detecting the obstacle present in the vicinity of the end and a support mechanism for supporting the non-contact type sensor, and the support mechanism of the non-contact type safety device. is fixed to the connecting part of the mechanical safety device, the support mechanism of the non-contact safety device, holds the non-contact sensor A sensor side bracket and a connecting part side bracket for connecting the sensor side bracket to the connecting part, and the connecting part of the mechanical safety device is fastened with the connecting part fixed to the door panel by fastening means. A hole is formed in advance, and the connecting part side bracket of the support mechanism of the non-contact safety device is fixed to the door panel via the fastening means inserted into the fastening hole of the connecting part . This is an elevator door device.

  The present invention is the door device for an elevator, wherein the operating portion of the mechanical safety device is located between the door panel and the non-contact sensor of the non-contact safety device.

The present invention is the door device for an elevator, wherein the non-contact type sensor of the non-contact type safety device comprises a multi- optical axis sensor arranged along a door-end side end portion of the door panel.

  According to the present invention, since the non-contact type sensor of the non-contact type safety device is attached to the connecting portion of the mechanical safety device via the support mechanism, the non-contact type safety device is additionally provided to the door device of the elevator having the mechanical safety device. When a non-contact sensor is mounted on the door, there is no need to apply new processing to the door panel or the car frame. Therefore, the non-contact safety device can be easily attached to the existing car, and maintenance work after the attachment can be easily performed. Moreover, since an operator can work without entering the hoistway, safety can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a horizontal sectional view showing the entire car, and FIG. 2 is a front view of the elevator door device according to the embodiment of the present invention as seen from the landing side. 3 is an enlarged view of a part A in FIG. 2, and FIG. 4 is a top view of the door device for the elevator as seen from the direction B in FIG.

First, the configuration around the elevator car of the elevator apparatus will be described with reference to FIG.
As shown in FIG. 1, an elevator apparatus 10 includes a car 12 that moves up and down in a hoistway 11 of a building, and a pair of car doorway columns 14 a and 14 b that are arranged so as to surround an doorway 13 of the car 12, And a door device 20 provided at the entrance / exit 13 of the car 12. In addition, a pair of holders 17 a and 17 b are provided at the entrance 16 of the landing 15 so as to be openable and closable, and a hall three-way frame 18 is provided so as to surround the entrance 16.

Next, the configuration of the elevator door device according to the present embodiment will be described with reference to FIGS.
As shown in FIG. 2, the elevator door device 20 is provided at a pair of door panels 21 a and 21 b each having a door end portion 22 a and 22 b and door end portions 22 a and 22 b of the door panels 21 a and 21 b. Mechanical safety devices 23a and 23b, and non-contact safety devices 24a and 24b provided in parallel with the mechanical safety devices 23a and 23b.

  Further, door links 25a and 25b for transmitting a driving force from a door motor (not shown) are connected to the door panels 21a and 21b, and the door links 25a and 25b are operated to open and close the door panels 21a and 21b. It has become.

  On the other hand, each mechanical safety device 23a, 23b has an operating portion 30 as described later, and the safety operating devices 26a, 26b are connected to the operating portion 30. That is, the safety operation devices 26a and 26b are connected to the link mechanisms 29a and 29b that interlock with the opening and closing operations of the door panels 21a and 21b, the cam mechanisms 28a and 28b that transmit the driving force from the link mechanisms 29a and 29b, and the operation units 30. It has operating links 27a and 27b that are swingably attached and operate the operating units 30 by the driving force transmitted from the cam mechanisms 28a and 28b.

  Next, the configuration of the mechanical safety devices 23a and 23b and the non-contact safety devices 24a and 24b described above will be further described with reference to FIGS. 3 and 4, the configuration on the side of one door panel 21a will be described for the sake of convenience, but the configuration on the side of the other door panel 21b is also the same.

  As shown in FIGS. 3 and 4, the mechanical safety devices 23 a and 23 b include an operating part (safety shoe) 30 that detects the obstacle by mechanical contact with an obstacle such as a passenger or a luggage, and the operating part. 30 includes a link 32 that is rotatably connected to the first support shaft 33, and a connecting portion 31 that connects the link 32 and the operating portion 30 to the door panel 21a.

  Among these, the link 32 is rotatable with respect to the connecting portion 31 around the second support shaft 34. The connecting portion 31 has fastening holes 36a-36d formed in advance, and is fixed to the door panel 21a via fastening means 35a-35d made of bolts or the like inserted into the fastening holes 36a-36d.

  Further, the mechanical safety devices 23a and 23b are connected to a control device (not shown), and the control device detects the displacement when the operating unit 30 contacts and retreats to reopen the door panels 21a and 21b. It has become.

On the other hand, the non-contact type safety device 24a includes a non-contact type sensor 37 that detects an obstacle present in the vicinity of the door contact side end 22a of the door panel 21a, and a support mechanism 38 that supports the non-contact type sensor 37. doing. Among these, the non-contact type sensor 37 consists of a multi- optical axis sensor arrange | positioned up and down along the door end part 22a of the door panel 21a.

  The non-contact safety devices 24a and 24b are connected to the above-described control device. When the light from the non-contact sensor 37 is blocked during the door closing operation of the door panels 21a and 21b, the control device 21b is reopened.

  Further, the support mechanism 38 is connected to the sensor side bracket 39 that holds the non-contact type sensor 37 and the sensor side bracket 39 via the bolts 41 a and 41 b, and the connection part side bracket that connects the sensor side bracket 39 to the connection part 31. 40.

  Among these, the connection part side bracket 40 is being fixed to the connection part 31 and the door panel 21a via the fastening means 35d inserted in the fastening hole 36d of the connection part 31 mentioned above. That is, the fastening means 35d serves to fix the connecting portion 31 to the door panel 21a and also to fix the connecting portion side bracket 40 to the door panel 21a.

  As shown in FIG. 4, the connecting portion side bracket 40 has two bent portions 40a and 40b bent at a right angle. Thereby, the non-contact type sensor 37 of the non-contact type safety device 24a is arranged on the opposite side of the operating part 30 of the mechanical safety device 23a when viewed from the door panel 21a. That is, the operation unit 30 is located between the door panel 21 a and the non-contact sensor 37.

  The sensor side bracket 39 may be configured to be movable up and down with respect to the connecting portion side bracket 40 so that the detection range of the non-contact sensor 37 can be easily adjusted.

  3 to 4, the support mechanism 38 of the non-contact type safety device 24a is fixed to the connecting portion 31 provided at the upper part of the door panel 21a, but is further below the door panel 21a (the safety shown in FIG. 2). Also in the vicinity of the actuating device 26a, a second connecting portion (having a configuration substantially similar to the connecting portion 31) is provided. The non-contact sensor 37 is also connected to the second connecting portion via a second support mechanism (having a configuration substantially similar to the support mechanism 38).

Next, the operation of the present embodiment having such a configuration will be described.
In particular, the operation when a non-contact type safety device 24a is newly attached to the mechanical safety device 23a provided in the door panel 21a in advance will be described.

  First, the non-contact sensor 37 and the support mechanism 38 of the non-contact safety device 24a are connected in advance via bolts 41a and 41b. Next, the non-contact sensor 37 and the support mechanism 38 are carried into the car 12.

  Next, after the fastening means 35d is once removed from the fastening hole 36d of the connecting portion 31 of the mechanical safety device 23a, the fastening means 35d is connected via the connecting portion side bracket 40 of the support mechanism 38 of the non-contact safety device 24a. It is inserted again into the fastening hole 36d. In this manner, the support mechanism 38 of the non-contact safety device 24a is fixed to the connecting portion 31 and the door panel 21a.

  Thus, according to the present embodiment, the non-contact type sensor 37 of the non-contact type safety device 24a is attached to the connecting portion 31 of the mechanical safety device 23a via the support mechanism 38, so the mechanical safety device 23a. When the non-contact type sensor 37 is additionally attached to the elevator door device 20 having the above, there is no need to perform new processing on the door panel 21a or the car frame. Accordingly, the non-contact safety device 24a can be easily attached to the existing car 12, and maintenance work after the attachment can be easily performed. Moreover, since an operator can work without entering the hoistway 11, safety can be improved.

  Further, according to the present embodiment, the fastening hole 36d is formed in advance in the connecting portion 31 of the mechanical safety device 23a, and the connecting portion side bracket 40 of the support mechanism 38 has the fastening means 35d inserted into the fastening hole 36d. Therefore, the non-contact sensor 37 can be easily attached to the mechanical safety device 23a using the existing structure.

  Further, according to the present embodiment, the operating part 30 of the mechanical safety device 23a is located between the door panel 21a and the non-contact type sensor 37 of the non-contact type safety device 24a. An obstacle located on the 15 side can be reliably detected by the non-contact sensor 37.

  In the present embodiment, the mechanical safety devices 23a and 23b and the non-contact safety devices 24a and 24b are provided on both of the pair of door panels 21a and 21b. And the non-contact-type safety device may be provided in either one of the door panels 21a and 21b.

FIG. 1 is a horizontal sectional view showing the entire car. FIG. 2 is a front view of an elevator door device according to an embodiment of the present invention as viewed from a landing side. FIG. 3 is an enlarged view of a portion A in FIG. FIG. 4 is a top view of the door device for the elevator as seen from the direction B in FIG. 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Elevator apparatus 11 Hoistway 12 Car 13 Entrance / exit 14a, 14b Car entrance / exit pillar 15 Platform 16 Entrance 17a, 17b Holder 18 Hall three-way frame 19
20 Door device 21a, 21b Door panel 22a, 22b Door end side 23a, 23b Mechanical safety device 24a, 24b Non-contact safety device 25a, 25b Door link 26a, 26b Safety operation device 27a, 27b Operation link 28a, 28b Cam Mechanism 29a, 29b Link mechanism 30 Actuating section 31 Connecting section 32 Link 33 First support shaft 34 Second support shaft 35a-35d Fastening means 36a-36d Fastening hole 37 Non-contact type sensor 38 Support mechanism 39 Sensor side bracket 40 Connection side Bracket 40a, 40b Bent part 41a, 41b Bolt

Claims (3)

In the elevator door device provided in the elevator car,
A pair of door panels each having a door end side;
A mechanical safety device provided at an end portion of the door panel of at least one of the door panels, and having an operating part that detects an obstacle by mechanical contact with the obstacle, and a connecting part that connects the operating part to the door panel. When,
A non-contact type sensor provided in parallel with the mechanical safety device and having a non-contact type sensor for detecting the obstacle present in the vicinity of a door-contact side end of the door panel, and a support mechanism for supporting the non-contact type sensor. With safety devices,
The support mechanism of the non-contact safety device is fixed to the connecting portion of the mechanical safety device ;
The support mechanism of the non-contact type safety device includes a sensor side bracket that holds the non-contact type sensor, and a connecting part side bracket that connects the sensor side bracket to the connecting part,
A fastening hole for fixing the connecting portion to the door panel by fastening means is formed in advance in the connecting portion of the mechanical safety device,
The elevator door characterized in that the connecting part side bracket of the support mechanism of the non-contact safety device is fixed to the door panel via the fastening means inserted into the fastening hole of the connecting part. apparatus.   The elevator door device according to claim 1, wherein the operating portion of the mechanical safety device is located between the door panel and the non-contact sensor of the non-contact safety device. 3. The elevator door device according to claim 1, wherein the non-contact type sensor of the non-contact type safety device includes a multi- optical axis sensor arranged along a door end side portion of the door panel. .

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