JP2016094287A - Escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an escalator not requiring a footstep chain for connecting footsteps.SOLUTION: A long hole 320 is opened in a longitudinal direction in a skeleton member 304 of a footstep 30. A shaft 318 of a front wheel 314 of the footstep 30 located at a rear side of the long hole 320 is engaged with the long hole 320.SELECTED DRAWING: Figure 7

Description

  Embodiments of the present invention relate to escalators.

  Conventional escalators are attached to and driven by a step chain in which a plurality of steps are connected endlessly in order to allow passengers to travel on the steps.

JP-A-4-72289

  However, for an escalator with a step chain, it is necessary to periodically supply oil to the step chain and to perform maintenance and inspections, and the chain links of this step chain are required for the number of steps, and cost There was a problem of rising.

  In view of the above problems, an embodiment of the present invention aims to provide an escalator that does not require a step chain for connecting steps.

  An embodiment of the present invention includes a skeleton member, a step frame having a cleat surface provided on an upper surface of the skeleton member, a riser surface provided on a rear surface of the skeleton member, and right and left provided on a front end portion of the skeleton member. A pair of front wheels; an axle connecting the pair of left and right front wheels; a pair of left and right rear wheels provided at a rear end of the skeleton member; and a long hole opened in the longitudinal direction of the skeleton member. A plurality of steps are arranged in the front-rear direction, and the axles of the second step located behind the first step are engaged with the elongated holes of the first step so that the plurality of steps are endless. It is an escalator connected in a shape.

Explanatory drawing of the escalator which shows one Embodiment of this invention. Side view of steps. The rear view of a step. The top view of a step. The top view of the state which connected the step in the front-back direction. The side view of the state where the cleat surface of two steps is horizontal. The side view when there is a level difference in two steps. An explanatory view of the state where a plurality of steps are reversed. An example of changing the axle.

  Hereinafter, the escalator 10 of one Embodiment of this invention is demonstrated based on FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as seen from the side.

  A truss 12 of the escalator 10 is supported across the upper and lower floors of the building. A driving device 18 is provided inside the upper floor machine room 14 at the upper end of the truss 12. The drive device 18 includes a motor 20 including an induction motor (induction motor), a speed reducer 22, and a drive chain 24 that is operated by an output from the speed reducer 22, and the drive sprocket 26 is rotated by the drive chain 24. To do.

  A driven sprocket 28 is provided inside the lower floor machine room 16 at the lower end of the truss 12.

  A plurality of steps 30 are connected and moved endlessly between the drive sprocket 26 on the upper floor side and the drive sprocket 28 on the lower floor side. The step 30 will be described in detail later.

  In the inclined part from the upper floor side to the lower floor side of the truss 12, a guide rail for moving the front wheel 314 and the rear wheel 316 of the step 30 is provided. Specifically, the front wheel forward path guide rail in order from the upper part of the truss 12 50, a rear wheel forward path guide rail 54, a rear wheel backward path guide rail 56, and a front wheel backward path guide rail 52 are fixed inside the truss 12 by bolts, welding, or the like. Further, an arc-shaped upper reversing guide rail 58 for reversing the rear wheel 316 of the step 30 is provided around the drive sprocket 26 inside the machine room 14 on the upper floor side. A lower inversion guide rail 60 for reversing the rear wheel 316 of the step 30 is also provided in the machine room 16 on the lower floor side.

  In addition, the step chain connected to the endless shape does not have a step chain which is in a conventional escalator.

  On the left and right sides of the truss 12, a pair of left and right balustrades 36, 36 are erected. A handrail belt 38 moves in synchronization with the step 30 over the balustrade 36. A front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and a front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. The inlet portions 46 and 48 that are the entrances and exits of the handrail belt 38 protrude. A skirt guard 44 is provided at the lower side of the balustrade 36.

  A boarding board 32 on the upper floor is provided at the entrance of the ceiling surface of the machine room 14 on the upper floor side, and a boarding board 34 on the lower floor side is provided at the entrance of the ceiling surface of the machine room 16 on the lower floor side. It has been.

(2) Step 30
Next, the structure of the step 30 will be described with reference to FIGS.

  The step 30 has a step frame 302 made of aluminum die cast. As shown in FIGS. 2 to 4, a plurality of paired left and right triangular frame members 304 are formed at predetermined intervals on the step frame 302, and a cleat surface 306 is integrally cast on the upper surfaces of the plurality of frame members 304. The riser surface 308 is integrally cast on the rear surface of the skeleton member 304. In the central portion of the triangular skeleton member 304, a hand opening 310 is opened to reduce weight and make it easier for an operator to hold.

  A bearing portion 312 is integrally cast on the upper front ends of the plurality of skeleton members 304, and an axle 318 of a front wheel 314 is attached. Rear wheels 316 are rotatably attached to the left and right sides of the lower part of the rear end of the left and right skeleton members 304. A long hole 320 penetrates the rear part of the plurality of frame members 304 of the step 30 in the vertical direction. The elongated hole 320 is substantially parallel to the riser surface 308.

  3 is a rear view of the step 30, and as shown in FIG. 3, notches 322 are formed at both lower ends of the riser surface 308, and a pair of left and right rear wheels 316 are exposed. Further, the distance between the pair of left and right front wheels 314 is wider than the distance between the pair of left and right rear wheels 316.

  4 is a plan view of the step 30. As shown in FIG. 6, a rectangular recess 324 is formed at the front of the cleat surface 306, and the axle 318 of the pair of left and right front wheels 314 is exposed. ing. The axles 318 of the pair of left and right front wheels 314 are rotatably supported by bearings 312 of the pair of left and right skeleton members 304 on both sides of the step frame 302. A rectangular protrusion 326 is formed at the rear of the cleat surface 306. A long hole 320 is opened at the position of the skeleton member 304 corresponding to both sides of the protruding portion 326. As shown in FIG. 5, the protrusion 326 engages with the recess 324.

  The case where the two steps 30 are connected in the front-rear direction will be described. As shown in FIGS. 4 to 6, the protrusion 326 of the front step 30 (hereinafter referred to as “first step 30”) is connected to the rear step 30 (hereinafter referred to as “second step 30”). The axle 318 of the rear second step 30 is passed through the elongated hole 320 of the front first step 30 and fixed with a pair of left and right front wheels 314 so as not to be pulled out. As a result, the second step 30 is connected to the rear of the first step 30 by the engagement of the axle 318 and the long hole 320. Similarly, a plurality of steps 30 are connected in the front-rear direction to form an endless set of steps 30.

  When the cleat surface 306 of the first step 30 and the cleat surface 306 of the second step 30 in the front and rear are in a horizontal state, as shown in FIG. 6, the axle 318 of the rear second step 30 is moved forward. The first step 30 is located above the elongated hole 320.

  If there is a step between the cleat surface 306 of the first step 30 and the cleat surface 306 of the second step 30 as shown in FIG. 7, the axle 318 of the second step 30 at the rear is The first step 30 is located below the long hole 320.

  When the step 30 is reversed in the vertical direction, as shown in FIG. 8, the front wheel 314 is engaged with the concave portion of the rotating drive sprocket 26 in a state where the axle 318 and the long hole 320 of the step 30 at the front and rear are engaged. Then, the rear wheel 316 moves along the upper reversing guide rail 58 and the step 30 is reversed.

(3) Effects According to the present embodiment, the step 30 can be traveled while being connected endlessly without providing a step chain that is used in a conventional escalator. Therefore, it is possible to reduce the step chain replacement, maintenance inspection and cost. And since the step chain is not required, oillessness can be achieved, and environmental performance and maintainability are improved.

(4) Modified Example As a modified example of the above embodiment, a sliding member having a low coefficient of friction such as polyethylene may be provided at the edge of the long hole 320 provided in the step 30. In this modified example, the axle 318 can be prevented from being worn and the step 30 can be run without oil.

  Further, as a modification of the above embodiment, as shown in FIG. 9, a roller 328 may be provided at a position of an axle 318 that contacts the skeleton member 304 of the step 30. In this modified example, wear of the axle 318 can be prevented, and the step 30 can be driven without oil.

  Moreover, in the said embodiment, although the step 30 integrally casted the step frame, it may replace with this and may fix a cleat surface and a riser surface to a frame | skeleton member with a volt | bolt etc.

  In the above embodiment, the protrusion 326 is formed at the rear portion of the cleat surface 306 of the step 30 and the recess 324 is formed at the center of the front portion of the cleat surface 306. A recess 324 may be formed at the center of the rear portion of the cleat surface 306, and a protrusion 326 may be formed at the center of the front portion of the cleat surface 306.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Escalator, 26 ... Drive sprocket, 30 ... Step, 302 ... Step frame, 304 ... Skeletal member, 306 ... Cleat surface, 308 ... Riser surface, 312 ... Bearing part, 314 ... front wheel, 316 ... rear wheel, 318 ... axle, 320 ... long hole, 322 ... notch, 324 ... recessed part, 326 ... projecting part

Claims (10)

A frame having a skeleton member, a cleat surface provided on an upper surface of the skeleton member, and a riser surface provided on a rear surface of the skeleton member;
A pair of left and right front wheels provided at the front end of the skeleton member;
An axle connecting the pair of left and right front wheels;
A pair of left and right rear wheels provided at the rear end of the skeleton member;
A long hole opened in the longitudinal direction of the skeleton member;
A plurality of steps having a front and rear direction are arranged,
A plurality of the steps are connected endlessly by engaging the axle of the second step located behind the first step with the elongated hole of the first step;
Escalator. When there is a step between the cleat surface of the first step and the cleat surface of the second step, the axle of the second step is positioned below the long hole of the first step. ing,
The escalator according to claim 1. When the cleat surface of the first step and the cleat surface of the second step are horizontal, the axle of the second step is positioned above the long hole of the first step. Yes,
The escalator according to claim 1. The center of the rear portion of the cleat surface of the step protrudes to form a protrusion, and the elongated hole is formed at the position of the skeleton member corresponding to the protrusion,
The center of the front portion of the cleat surface of the step is recessed to form a recess, and the axle of the front wheel is stretched over the position of the skeleton member corresponding to the recess,
The protrusion at the rear of the first step is engaged with the recess at the front of the second step;
The escalator according to claim 1. The center of the rear portion of the cleat surface of the step is recessed to form a recess, and the elongated hole is formed at the position of the skeleton member corresponding to the recess,
The center of the front portion of the cleat surface of the step protrudes to form a protrusion, and the axle is stretched over the position of the skeleton member corresponding to the protrusion,
The protrusion of the front part of the second step is engaged with the recess of the rear part of the first step,
The escalator according to claim 1. A sliding member is provided at the edge of the long hole,
The escalator according to claim 1. A roller is provided on the axle contacting the elongated hole;
The escalator according to claim 1. The truss includes a front wheel forward guide rail and a front wheel return guide rail to which the front wheel moves, and a rear wheel forward guide rail and a rear wheel return guide rail to which the rear wheel moves.
The escalator according to claim 1. A drive sprocket formed on the outer periphery with a recess with which the front wheel engages;
A motor for rotating the drive sprocket;
The escalator according to claim 1, comprising: A step chain for running the plurality of steps is not provided,
The escalator according to claim 1.

Images