JPS6141838B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a passenger conveyor device in which a driving machine is provided in the longitudinal middle of the main frame, and the outgoing and returning sides of a treadle chain made of toothed links are driven by the driving machine. .

First, a conventional passenger conveyor system will be explained with reference to FIGS. 1 and 2.

In the figure, 1 is the main frame of the passenger conveyor, 2 is a tread chain consisting of toothed links 2a arranged endlessly on the main frame 1, 2b is the outbound side, 2c is the return side, and 2d
3 is a reversing point, 3 is a drive unit disposed at the longitudinal center of the main frame 1 and engaged with the forward side 2b and return side 2c of the tread chain 2, and 4 is a tread having a roller 4a engaged with the tread chain 2. 4b is a follower wheel thereof, and 5 is an intermediate rail provided in the intermediate portion of the main frame 1 to guide the roller 4a, which are provided along the forward path side 2b and the backward path side 2c, respectively. Reference numeral 6 indicates a follower intermediate rail that is arranged in the same manner as the intermediate rail 5 and guides the follower wheel 4b, 7 is a fixed plate that forms part of the main frame 1 and is provided corresponding to the reversal point 2d, and 8 is attached to the fixed plate 7. The upper reversing rail provided has a fixed piece 8a arranged on an extension line of the forward intermediate rail 5 and fixed to the fixed plate 7, and one end corresponding to the fixed piece 8a and pivoted to the fixed plate 7 and curved. It is composed of a movable piece 8b. Reference numeral 9 denotes a lower reversing rail provided on the fixed plate 7, which includes a fixed piece 9a arranged on the extension line of the intermediate rail 5 on the return side and fixed to the fixed plate 7, and one end corresponding to the fixed piece 9a and fixed on the fixed plate 7. It is constituted by a curved movable piece 9b which is pivotally connected to. Reference numeral 10 denotes a holding plate which pivotally supports the ends of the upper and lower reversing rails 8 and 9 opposite to the end of the intermediate rail 5 at a predetermined interval, and is movable in the longitudinal direction of the main frame 1 with respect to the fixed plate 7. It is installed. Reference numeral 11 denotes a trailing wheel reversing rail that is fixed to the fixed plate 7 and connects the upper and lower trailing wheel intermediate rails 6 to each other.

That is, the treadle chain 2 has an outgoing side 2b and a backward side 2c.
are respectively driven by the driving machine 3, that is, pushed and pulled. This causes the footboard 4 to move. At the reversal point of the treadle 4, a load in an outward direction of the semicircle is applied by the rollers 4a to the semicircular portion formed by the upper and lower reversing rails 8 and 9. When the loads due to these are balanced,
The lower reversing rails 8 and 9 are placed in neutral positions, that is, the holding plate 10 is placed in the neutral position, and when the holding plate 10 becomes unbalanced, the holding plate 10 is displaced in the left-right direction in FIG.
This reduces the impact when the footboard 4 is reversed. However, since the tread chain 2 is engaged with the drive unit 3 on the outbound side 2b and the return side 2c, if the length of the rail and the length of the tread chain 2 do not match due to manufacturing error, etc. , either the forward or return side 2b or 2c will no longer engage. Further, if the length of the tread chain 2 is longer than the rail length, the tread chain 2 becomes slack, causing vibration and noise. Further, when the length of the tread chain 2 was shorter than the rail length, there was a problem that the tread chain 2 could not be stretched.

This invention solves the above-mentioned drawbacks, and provides a passenger conveyor that can easily accommodate differences in the length of the treadle chain, and the forward and return sides are each driven by a drive machine installed in the longitudinal middle of the main frame. The aim is to provide equipment.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 6.

In the figure, the same reference numerals as those in Figures 1 and 2 indicate corresponding parts, and 12 is a support that is fixed to the part corresponding to the reversal part of the tread plate 4 of the main frame 1, and is provided at the top and bottom, respectively. A protruding support piece 12a and a support arm 12b provided outward from the inverted position of the footboard 4 and protruding in the vertical direction are provided. 7 is up,
A mounting plate with lower reversing rails 8, 9, etc.
Ear portions 7a are provided on both sides of the upper and lower portions, and an arm portion 7b is provided in the middle portion that protrudes toward the outside of the inverted position of the footboard 4. 13 is a support piece 12a
A bolt 14 is screwed into the bolt and inserted into an elongated hole whose longitudinal side is arranged along the length of the main frame 1 and into the ear 7a.
Nuts 15 are disposed on both sides of the support arm 12a and in contact with the support arm 12a, and 15 is a threaded rod having one end fixed to the mounting plate 7 and protruding and inserted into the support arm 12b.
Nuts 16 are screwed into the support arm 12b and placed on both sides of the supporting arm 12b, 17 is a mounting device mainly composed of bolts 13, threaded rods 15, and nuts 14 and 16, and 9b is a holding plate 10. 18 is a stator consisting of a bolt that temporarily fixes the extended end of this piece to the arm part 7b; 19 is a movable piece with an extended end that pivots between the intermediate rail 5, the follower intermediate rail 6, and the upper and lower parts. A joint formed at a portion facing the reversing rails 8 and 9 and the trailing wheel reversing rail 11, 19a is a recess formed at the end of the intermediate rail 5 and the trailing wheel intermediate rail 6, and 19b is a joint formed in the upper and lower reversing rails 8. ，
9. A recess 19a formed in the follower wheel reversing rail 11
It is a convex part that fits into the.

That is, the mounting plate 7 on which the upper and lower reversing rails 8, 9, etc. are provided is mounted so as to be displaceable with respect to the main frame 1 by the mounting device 17, and the upper and lower reversing rails 8 are mounted by the joint 19. , 9 etc. are displaced in the direction along the length of the main frame 1, the intermediate rail 5,
Opposing rails such as the upper and lower reversing rails 8 and 9 are connected without creating a gap in the width direction. As a result, the entire length of the tread chain 2, the intermediate rail 5,
The difference between the total lengths of the upper and lower reversing rails 8 and 9 and the total lengths of the trailing wheel intermediate rail 6 and the trailing wheel reversing rail 11 can be adjusted by displacing the mounting plate 7 with respect to the main frame 1 at the reversing location 2d. , it is possible to prevent problems caused by the above-mentioned difference in overall length. Note that when displacing the mounting plate 7, the upper and lower reversing rails 8 and 9 rotate, making it difficult to set the mounting plate 7 in the proper position. However, in this embodiment, the stator 18 is provided. With this, the upper and lower reversing rails 8, 9 can be temporarily fixed in the neutral position, and by displacing the mounting plate 7, it can be easily set in the proper position. Note that after setting the mounting plate 7, the stator 18 is removed and the passenger conveyor is operated.

7 and 8 show other embodiments of the present invention. In the figures, the same reference numerals as in FIGS. 5 and 6 indicate corresponding parts, and parts other than those in FIGS. 4, 19 is a joint, 19a is an oblique side that tapers from one side of the width of the end of the intermediate rail 5 etc. to the tip of the other side, and 19c is an oblique side corresponding to the oblique side 19a. 20 is a receiving metal fitting welded to the back surface of the end of the intermediate rail side of the fixed piece 8a of the upper reversing rail 8, and 21 is the joint piece 19.
A threaded rod erected on the back side of c and inserted into the receiving metal fitting 21, and 22 is screwed into this to form the receiving metal fitting 2.
This is a nut that is in contact with the back side of 0.

That is, the upper surface of the joint piece 19c is arranged on the same plane as the guide surfaces of the intermediate rail 5, the fixed piece 8a, etc. Since the oblique sides 19a and 19b are arranged to face each other, for example, even if the fixed piece 8a is displaced with respect to the main frame 1, the fixed piece 8a and the intermediate rail can be connected without creating a gap in the width direction. Therefore, although a detailed explanation will be omitted, it is clear that the same effects as in the embodiments shown in FIGS. 3 to 6 can be obtained in this embodiment as well.

As explained above, in this invention, a treadle chain is wound around which the forward and backward sides are driven respectively by a drive machine installed in the longitudinal middle of the main frame, and the lower reversing rail is moved in the longitudinal direction of the main frame with respect to the main frame. In addition, a joint is provided at the opposing portions of the intermediate rail and the upper and lower reversing rails to connect them so as to be expandable and contractible in the longitudinal direction without creating a gap in the width direction. As a result, even if there is a difference between the total length of the rail such as the intermediate rail and the total length of the tread chain, this difference can be easily adjusted, making assembly and maintenance easy, and also reducing vibration. This realizes a passenger conveyor device with less noise.

[Brief explanation of the drawing]

Fig. 1 is a conceptual side view of a passenger conveyor, Fig. 2 is an enlarged view of a portion of Fig. 1 showing a conventional passenger conveyor device, and Fig. 3 corresponds to Fig. 2 showing an embodiment of the passenger conveyor device according to the present invention. 4 is a right side view of FIG. 3, FIG. 5 is an enlarged view of the V section of FIG. 3, FIG. 6 is a plan view of FIG. 5, and FIG. 7 is a passenger conveyor device according to the present invention. A diagram corresponding to FIG. 5 showing an example of
FIG. 8 is a plan view of FIG. 7. 1...Main frame, 2...Tread chain, 2a...Toothed link, 2b...Outgoing side, 2c...Returning side, 2d...
Reversal point, 3...Driver, 4...Treadboard, 4a...
Roller, 5... Intermediate rail, 7... Mounting plate, 8
... Upper reversing rail, 9 ... Lower reversing rail, 1
0... Holding plate, 17... Mounting device, 19... Joint. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. A step chain that is attached to the inside of the main frame of the passenger conveyor and that is constructed of a toothed link that circulates along the longitudinal direction of the main frame, a step board that has a roller connected to this step chain, and the above-mentioned main frame. A driving machine is installed in the longitudinal middle part of the step chain, and engages with the toothed link of the step chain to drive the outward and return sides of the step chain, respectively. an intermediate rail that guides the rollers on the outbound side and the inbound side excluding the inversion movement portion of the tread; and an intermediate rail provided at the inversion movement portion of the tread within the end of the main frame, one end of which is an end of the intermediate rail on the outbound side; an upper reversing rail that guides the roller in the upper half of the reversing movement of the treadle, and an intermediate rail provided at the reversing movement part of the treadle within the end of the main frame, one end of which is on the return side; a lower reversing rail facing the end and guiding the roller in the lower half of the reversing movement of the tread; a mounting plate provided within the end of the main frame for supporting and fixing the upper reversing rail and the lower reversing rail; , which is provided on the mounting plate, supports a terminal end portion that guides the upper half reversal movement of the upper reversing rail, and a starting end portion that guides the lower half reversal movement of the lower reversal rail, and supports these end portions at a predetermined interval. A holding plate is provided between each of the ends of the intermediate rail on the forward and return sides and one end of the upper reversing rail and the lower reversing rail, and the opposing ends are connected to each other in the longitudinal direction. A joint is provided between the end of the main frame and the mounting plate, and the joint is expandable and contractable in the direction and connects by forming a continuous guide surface by the ends of the respective rails, and the joint is provided between the end of the main frame and the mounting plate, and the joint is connected to the mounting plate. 1. A passenger conveyor device comprising: a screw member for moving and displacing the frame along the longitudinal direction and fixing the frame at a predetermined position.