JP5050535B2 - Man conveyor - Google Patents

Description

  The present invention relates to a man conveyor, and more particularly to a structure of a step rail for guiding the movement of the step.

  Generally, in a man conveyor, for example, an escalator, in order to smoothly finish the roller contact surface of each step rail, an expensive polished angle is used as a rail material. In painting, masking is applied to paint on the roller contact surface. It is necessary not to adhere. For this reason, in an escalator, there exists a subject that manufacture of a step rail takes a considerable effort.

  In order to solve this problem, the structure of the step rail that guides the movement of the escalator step is separated from one of the following rails with respect to the follower roller by the return side inclined portion and the upper and lower curved portions in the step circulation path. (See, for example, Patent Document 1).

JP 7-187556 A (summary column, FIG. 1)

  Since the conventional escalator disclosed in the above-mentioned Patent Document 1 can be made non-contact by disposing the tracking side rail at a distance from the tracking roller, the non-contact portion of the step rail There is an advantage that the finishing can be simplified and the manufacturing cost can be reduced. In addition, there is an advantage that the follower roller comes into contact with the follower side rail that is not in contact during normal operation and receives a load even when an operator rides on the return step on installation or during maintenance and the step is inclined due to the position of the center of gravity. However, the structure in which one following side rail is arranged at an interval with respect to the following roller at the slope part and the upper and lower curved part on the return side in the circulation path of the step is used for stable running of the step at the time of installation. There is a problem that requires a lot of time for adjustment.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and aims to provide a man conveyor that does not require time for adjustment for stable running of a step during installation while taking advantage of the prior art. It is.

  The man conveyor according to the present invention has at least one step roller attached to each of the front, rear, left, and right, and is provided on a number of steps that are endlessly connected and circulated and provided on the forward path side of the step, and constitutes the step roller A plurality of step rails that support and guide each of the driving roller and the follower roller, and a step rail that is provided on the return path side of the step and supports and guides the drive roller, and each of the step rollers moves forward and backward in the moving direction. A protruding portion is formed, the one protruding portion is brought into contact with the other protruding portion of an adjacent step on the return path side of the step, and the weight of the step is supported by a driving roller of the adjacent step. To do.

  According to the present invention, it is possible to simplify the finishing of the step rail to reduce the manufacturing cost, and even when the operator gets on the return-side step at the time of installation / maintenance, the protruding portion formed on the step is adjacent to the step. It can abut between and receive a load. Furthermore, it is possible to provide a man conveyor that does not require time for adjustment to make the steps run stably during installation.

  Exemplary embodiments of a man conveyor according to the present invention will be described below with reference to the accompanying drawings. An explanation will be given by taking an escalator as an example of the man conveyor.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of an escalator according to Embodiment 1 of the present invention. In this figure, a number of steps 2 are connected endlessly by a chain 3 in a truss 1. A pair of driving rollers 4 and a pair of following rollers 5 which are step rollers are provided on both sides in the width direction of each step 2, and each step 2 has these four rollers using the driving device 6 as a driving source. 4 and 5 travels in a circulating manner. A balustrade 7 is erected on the truss 1 on both sides of the step 2. The balustrade 7 is provided with a moving handrail 8 that circulates in synchronization with the steps 2. In addition, the drive device 6 is arrange | positioned at the upper part and lower part of the escalator.

  2 is a cross-sectional view taken along line AA in FIG. In the figure, a vertical member 9 provided in the truss 1 includes a pair of drive side rails 10a, 10b, 10c, 10d, which are step rails for supporting and guiding a pair of drive rollers 4 on the forward path side and the return path side, Two follower-side rails 11a and 11b, which are step rails that support and guide the follower roller 5 on the forward path side, are fixed by welding. These step rails 10a, 10b, 10c, 10d, 11a, 11b are usually made of a highly rigid material to support repeated loads by the step rollers 4, 5, and to prevent vibration, noise, etc. The roller contact surface is finished in a smooth state. In addition, the two follower side rails which are step rails which support and guide the pair of follower rollers 5 on the return path side are not provided.

  Next, FIG. 3 is a side sectional view showing a side surface of the step portion in section, FIG. 3 (a) shows the forward path side, and FIG. 3 (b) shows the return path side. As can be understood from FIG. 3, protrusions 2 a and 2 b are formed in the front and rear in the movement direction of each step 2, and the front protrusion 2 a in the movement direction is rearward in the movement direction of the step 2 positioned in front thereof. It is comprised so that it may oppose the protrusion part 2b. As shown in FIG. 3A, the protrusions 2a and 2b are moved to face each other with a slight gap at a constant inclination portion as shown in FIG. 3A, and the upper step 2 is lifted between the adjacent steps 2 It is configured to prevent lifting when hit.

  On the return path side, as shown in FIG. 3B, the projecting portions 2a and 2b are configured to contact each other between adjacent steps 2 at a constant slope portion. That is, in FIG. 3B, the step 2 rotates in the direction of the arrow with the step shaft 12 as the center of rotation (G indicates the center of gravity), but the protruding portion 2a that functions to prevent the step 2 from rising on the forward path side. , 2b abut on the return path side to prevent the rotation of the step 2 and the posture of the step 2 as shown in FIG. 3B is maintained. With this configuration, even when an operator rides on the return-side step 2 during installation / maintenance, the projecting portions 2a and 2b formed on the step 2 can contact and receive a load between adjacent steps. The two following rails on the return side can be deleted.

  The escalator according to the first embodiment is configured as described above, and the step rail on the return side can eliminate the step rail that guides the driven roller 5, thereby reducing the manufacturing cost and reducing the manufacturing cost during installation and maintenance. Even when riding on the return path step, the protruding portion formed on the step can abut between adjacent steps and receive a load. Furthermore, the escalator which does not require time for adjustment for making a step run stably at the time of installation can be provided.

Embodiment 2. FIG.
Next, a second embodiment will be described. Although the escalator according to the first embodiment has been described with respect to the embodiment in which the driving device is provided on the upper and lower portions of the escalator, the second embodiment is an embodiment in which the driving device is disposed on a constant inclined portion of the escalator. Explain.

  FIG. 4 is a configuration diagram of the escalator according to the second embodiment. In FIG. 4, the driving device 40 is arranged on a constant inclined portion of the escalator, and each step 2 is configured to circulate and move by the travel of four rollers 4 and 5 using the driving device 40 as a driving source. ing. The other parts are the same as those in the first embodiment, and the description thereof is omitted by giving the same reference numerals.

  As described above, the escalator according to the second embodiment is configured such that the driving device is disposed on a constant inclined portion of the escalator. In this embodiment, the same effect as that of the first embodiment can be obtained.

  As described above, the man conveyor according to the present invention is useful as a man conveyor that deletes the return side tracking rail.

It is a block diagram of the escalator which concerns on Embodiment 1 of this invention. It is arrow sectional drawing which follows the AA line of FIG. It is a sectional side view of a step part. It is a block diagram of the escalator which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Truss 2 Step 3 Chain 4 Driving roller 5 Following roller 6, 40 Driving device 7 Railing 8 Moving handrail 9 Vertical member 10a, 10b, 10c, 10d Driving side rail 11a, 11b Following side rail 12 Step axis

Claims (1)

At least one step roller attached to each of the front, rear, left and right, a number of steps connected endlessly and circulated,
A plurality of step rails provided on the forward path side of the step and supporting and guiding each of the driving roller and the follower roller constituting the step roller;
A step rail provided on the return side of the step and supporting and guiding the drive roller;
With
Protrusions are formed on the front and rear sides of the step in the moving direction, respectively, and the one projecting portion is brought into contact with the other projecting portion of the adjacent step on the return path side of the step so that the weight of the step is A man conveyor which is supported by a driving roller.

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