JP2006062812A - Inlet safety device for man-conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inlet safety device for a man-conveyor preventing stopping of operation of the man-conveyor by mischief, contact of passenger's baggage, etc. and capable of easily removing a hand when the passenger's hand is clamped between a handrail belt and an inlet member. <P>SOLUTION: The approximately cylindrical inlet member 8 is intrudably/removably supported on an advancement port of the handrail belt 4 provided on a skirt part 7. A switch 9 is provided in the skirt part, the switch 9 is operated when the inlet member is moved into the skirt part by predetermined length and a control device 11 stops the operation of the man-conveyor. In the inlet member, a portion arriving from a distal end of a peripheral wall 8b at an end surface 8c is formed to a thin shape. When a foreign matter is clamped between the portion and the handrail belt and force in a direction moving it into the skirt part is given to the distal end, the peripheral wall is elastically deformed to suppress the movement. When the force in a direction moving it into the skirt part is given to the end surface 8c, it is moved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an inlet safety device for a man conveyor such as an escalator or a moving sidewalk.

  FIG. 7 is a cross-sectional view of a main part of an inlet safety device of a conventional man conveyor, and FIG. 8 is a side sectional view of the inlet safety device of FIG.

  As is well known, the man conveyor is installed in a number of steps that circulate endlessly, a pair of balustrades erected so as to be positioned on both sides of the steps, and the peripheral edge of each balustrade, and is synchronized with the steps. And an endless handrail belt that travels. Further, a skirt portion for protecting the feet of the passengers is provided at the lower part of each balustrade so as to extend between one of the entrances and the other entrance.

  The handrail belt sequentially enters the skirt portion according to the travel. At both ends of the skirt portion into which the handrail belt enters, inlet members are provided as a safety measure when a human fingertip is about to be drawn into the skirt portion due to the handrail belt entering.

  As shown in FIGS. 7 and 8, the inlet member 101 has a substantially cylindrical shape with a C-shaped cross section in which a notch 101a extending in the longitudinal direction is formed in a part of the peripheral wall. A handrail belt 103 provided at 102a is supported at an entrance 102b of the handrail belt 103 so as to be able to enter and exit in parallel with the handrail belt 103, and a tip portion protrudes outward from the entrance 102b.

  The inlet member 101 includes a part of the lower part of the balustrade 104 together with the handrail belt 103 through the notch 101a. When the handrail belt 103 travels in the direction of arrow A ′ shown in FIG. It passes through the inlet member 101 and sequentially enters the skirt portion 102.

  The inlet member 101 is connected to a switch 105 provided in the skirt portion 102 via an operation plate 106. The inlet member 101 is elastically biased in a direction protruding from the skirt portion 102 by a spring (not shown).

  Then, when the handrail belt 103 is traveling in the direction of the arrow A ′, for example, when the child makes a prank and the fingertip is pulled into the gap G ′ between the handrail belt 103 and the inlet member 101, the handrail is pulled. The fingertip moves the inlet member 101 integrally with the handrail belt 103 toward the skirt portion 102 against the elastic force of the spring. When the inlet member 101 moves into the skirt portion 102 for a predetermined length, the switch 105 is actuated, and the control device 107 comprising a microcomputer stops the driving operation of the man conveyor.

  The conventional inlet member 101 is made of rubber having a large thickness and is hard and has high rigidity, and detects the pinching of the hand as close to the entrance 102b of the handrail belt 103 as possible. Although a foreign object such as a passenger's hand is not pinched between the handrail belt 103 and the inlet member 101 when a mischief such as kicking off is performed or when a bag or the like held by the passenger is in contact with the hand, In some cases, the switch 105 is activated to stop the man conveyor.

  Also, if the rigidity of the tip of the inlet member 101 is high, when the passenger's hand is sandwiched between the handrail belt 103 and the inlet member 101, the hand cannot be pulled out by himself and the rescue team is requested to dispatch. There was a case that had to be.

  The present invention has been made in view of the above problems, and its purpose is to prevent the man conveyor from being stopped due to mischief or contact with the passenger's baggage, and the passenger's hand is placed between the handrail belt and the inlet member. An object of the present invention is to provide an inlet safety device that can be easily pulled out when pinched.

In order to achieve the above object, the present invention provides:
The entrance of a handrail belt provided at the end of the skirt that protects the feet of the passenger is supported so as to be able to enter and exit in parallel with the handrail belt, and includes the handrail belt and has a distal end outward from the entrance. A substantially cylindrical inlet member protruding;
Detection means that operates when the inlet member has moved a predetermined length into the skirt portion;
A control device for stopping the operation of the man conveyor when the detecting means is activated;
With
The inlet member is given a force in a direction to move the foreign material into the skirt portion when a foreign object is sandwiched between the handrail belt and a portion extending from the distal end portion to a predetermined location in the skirt portion. An inlet safety device for a man conveyor characterized in that the part is elastically deformed to be prevented from moving, and to move when a force in a direction to move into the skirt portion is applied to the predetermined part. is there.

  According to the present invention, since the inlet member does not move into the skirt unless a force is applied to a predetermined position in the skirt portion of the inlet member, the operation of the man conveyor is prevented from being stopped due to mischief on the inlet member or contact of the passenger's baggage. can do.

  Moreover, since the site | part from the front-end | tip part of an inlet member to the predetermined location in a skirt part can be elastically deformed, when a passenger's hand is pinched | interposed between a handrail belt and an inlet member, a hand can be easily extracted.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a schematic configuration of an escalator equipped with an inlet safety device according to an embodiment of the present invention, FIG. 2 is a front view of the main part of FIG. 1, and FIG. 3 is a cross-sectional view of the main part of the inlet safety device of the embodiment. FIG. 4 is a side sectional view of the inlet safety device of FIG. 3, and FIGS. 5 and 6 are explanatory views of the operation of the present invention.

  In FIG. 1, this escalator includes a truss 1 installed between the lower floor and upper floor of the building, a number of steps 2 that circulate endlessly in the truss 1, and both sides of the step 2 It has a pair of balustrades 3 erected on the truss so as to be positioned.

  An endless handrail belt 4 is attached to the periphery of each balustrade 3, and the handrail belt 4 travels endlessly in synchronization with step 2. In addition, a skirt portion 7 is provided at the lower part of each balustrade 3 to protect the feet of passengers between the entrance 5 on the lower floor of the building and the entrance 6 on the upper floor.

  The handrail belt 4 sequentially enters the skirt portion 7 in accordance with the traveling. That is, the handrail belt 4 enters the inside from the end of the skirt portion 7 at the entrance / exit 6 on the upper floor during the ascending operation of the escalator, and from the end of the skirt portion 7 at the entrance / exit 5 on the lower floor during the descending operation. Enter inside.

  An inlet member 8 (see FIG. 2) is provided at both ends of the skirt portion 7 into which the handrail belt 4 enters, as a safety measure when a human fingertip is about to be drawn into the skirt portion 7 due to the handrail belt 4 entering. ) Is provided.

  As shown in FIGS. 3 and 4, the inlet member 8 is formed of an elastic material such as rubber, and has a substantially C-shaped cross section in which a notch 8 a extending in the longitudinal direction is formed in a part of the peripheral wall. In the shape, it is provided at the entrance 7b of the handrail belt 4 provided at the end portion 7a of the skirt portion 7 so that the tip portion protrudes outward.

  A part of the lower part of the balustrade 3 is included in the inlet member 8 together with the handrail belt 4 through the notch 8a, and the handrail belt 4 moves in the direction of the arrow A shown in FIG. Are sequentially entered into the skirt portion 7.

  The inlet member 8 is supported so as to freely enter and exit from the entrance 7 b and is connected to a switch 9 provided in the skirt portion 7 via an operation plate 10. The inlet member 8 is elastically biased in a direction protruding from the skirt portion 7 by a spring (not shown).

  The peripheral wall 8b of the inlet member 8 is formed in a thin shape with a thickness of about 1 mm from the tip portion to the end face 8c in the skirt portion 7. The thin-walled portion is formed with reinforcing ribs 8d extending in the longitudinal direction at the bottom and both sides so that the peripheral wall 8b can maintain a predetermined shape when no external force acts on the peripheral wall 8b. Yes.

  When the handrail belt 4 is traveling in the direction of the arrow A in FIG. 4, the inlet member 8 has a fingertip F drawn into the gap G between the handrail belt 4 and the inlet member 8, for example. 5, the peripheral wall 8b is elastically deformed so as to expand and absorbs the external force applied to the inlet member 8. In this state, the inlet member 8 does not move into the skirt portion 7. The operation of the escalator will not stop.

  As the handrail belt 4 moves in the direction of arrow A, when the fingertip F is further drawn into the inlet member 8 and contacts the end surface 8c, the inlet member 8 begins to move into the skirt portion 7. Then, when the inlet member 8 moves by a predetermined length, the switch 9 is activated and the control device 11 stops the operation of the escalator.

  In addition, since the site | part from the front-end | tip part in the inlet member 8 to the end surface 8c can be elastically deformed so that it may expand, the hand pinched | interposed between the handrail belt 4 and the inlet member 8 can be pulled out easily.

  In addition, when a force in the direction of moving into the skirt portion 7 is applied to the distal end portion of the inlet member 8 due to mischief or contact with a passenger's baggage, the inlet member 8 is elastic in the longitudinal direction as shown in FIG. The inlet member 8 does not move into the skirt portion 7 because it deforms and absorbs the force. Therefore, the operation of the escalator does not stop.

  In order to manufacture this inlet safety device, it is only necessary to change the inlet member of the conventional inlet safety device, and it is not necessary to change the switch or the control device.

  In addition, this invention is applicable also to man conveyors other than an escalator. In addition, various modifications can be made to the above embodiment without departing from the scope of the present invention.

It is a side view showing a schematic structure of an escalator provided with an inlet safety device which is one embodiment of the present invention. It is a principal part front view of FIG. It is a principal part cross-sectional view of the inlet safety device of an embodiment. It is side surface sectional drawing of the inlet safety device of FIG. It is explanatory drawing of an effect | action of this invention. It is explanatory drawing of an effect | action of this invention. It is a principal part cross-sectional view of the conventional inlet safety device. It is side surface sectional drawing of the inlet safety device of FIG.

Explanation of symbols

4 Handrail belt 7 Skirt 7b Entrance 8 Inlet member 9 Switch (detection means)
11 Control device

Claims (2)

The entrance of a handrail belt provided at the end of the skirt that protects the feet of the passenger is supported so as to be able to enter and exit in parallel with the handrail belt, and includes the handrail belt and has a distal end outward from the entrance. A substantially cylindrical inlet member protruding;
Detection means that operates when the inlet member has moved a predetermined length into the skirt portion;
A control device for stopping the operation of the man conveyor when the detecting means is activated;
With
The inlet member is given a force in a direction to move the foreign material into the skirt portion when a foreign object is sandwiched between the handrail belt and a portion extending from the distal end portion to a predetermined location in the skirt portion. An inlet safety device for a man conveyor, characterized in that the part is sometimes elastically deformed and prevented from moving, and is moved so as to be moved when a force in a direction to move the predetermined part into the skirt is applied.   2. The inlet safety device for a man conveyor according to claim 1, wherein a portion from the tip end portion to the predetermined portion on the peripheral wall of the inlet member is formed in a thin shape.

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