JPH115680A - Variable speed passenger conveyor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To minimize the protrusion of overhang teeth from the reversing portion at the entrance and exit, to reduce the height of the boarding / exiting floor, and to further smoothly engage the overhang teeth and pallet body comb teeth. . SOLUTION: A traveling rail 1 formed in a loop shape over the entire transport line and return line from the entrance to the exit.
This is a variable-speed passenger conveyor that travels on the traveling wheels 51 and changes the interval between the guide rails 10 and the adjacent pallets 5 to change the conveyance speed, and is formed on the pallet 5 tread surface. Pallet body comb teeth 5
0, and overhanging teeth 6 pivotally attached to the end of the pallet 5 and entering and exiting the adjacent pallet body comb teeth 50 and bridging the pallets 5 with each other. The overhanging comb teeth 6 have a recess 6b formed on the lower side. In addition, an inclined portion 1a is provided in a part of the traveling rail 1 to minimize the protrusion of the comb teeth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor such as a moving walkway or an escalator, and more particularly to a variable-speed passenger conveyor in which a moving speed of a pallet (tread surface) changes between a doorway and an exit.

[0002]

2. Description of the Related Art Recently, many passenger conveyors for transporting passengers without walking have been installed at airports, train stations, tourist facilities, and the like.

The speed of the conventional passenger conveyor is generally constant at a constant speed from the entrance to the exit. Entrance and exit are approximately 40 to ensure safety when passengers transfer.
The speed must be less than m / min. At this speed, the speed from the entrance to the exit is constant.

[0004] However, with regard to passenger conveyors installed for use in urban transportation and the like, long-distance types have emerged, and there is a strong demand for speeding up the transport speed in the middle.

[0005] Therefore, at the entrance, the speed is set to be the safe speed for the passengers to transfer, gradually accelerating to a higher speed at the middle, and gradually decreasing at the exit to become the same as the speed at the entrance. Although a type passenger conveyor has been proposed, the mainstream is one in which the speed of the pallets is changed to a variable speed.

The present applicant has filed an invention (Japanese Patent Application No. 8-19469).
No. 1 (hereinafter referred to as the prior invention)).

In the above-mentioned prior invention, a plurality of pallets are provided which run on the running rail in a connected state, and a safe tread surface is formed between the pallets by the overhanging comb teeth even if the interval between the pallets changes. It has a structure.

[0008]

The overhanging comb teeth are pivotally attached to the front end of each pallet and have a structure that can be freely bent. The pallet and the overhanging comb teeth maintain a predetermined angle at the reversing portion. Pass through. Here, when the pallet reaches the reversal part of the curved part from the straight part which is the transport line or the return line, the tip of the overhanging comb tooth is
Once lifted, it forms a locus that passes through a position higher than the pallet tread surface.

In such a case, if the floor of the boarding / alighting section is configured so as not to contact the tip of the overhanging comb teeth, the floor of the boarding / alighting section must be raised, and the step between the floor of the boarding / alighting section and the tread surface of the pallet. Therefore, the slope of the floor of the entry / exit section becomes large in the vicinity of the entry / exit section, which involves a danger. In addition, by increasing the floor of the boarding area, the under-floor volume is increased, the excavation depth in the soil is increased, or the installed structure is enlarged, resulting in high cost.

[0010] The overhanging comb teeth are freely bent by being pivotally supported at both ends of the pallet. However, the load due to the weight of the passenger acting on the overhanging comb teeth is limited.
There is a possibility that the entire overhanging comb teeth may be bent in the lateral direction, being concentrated on the shaft support portions at both ends of the pallet.

[0011] Further, the cross section of the pallet body comb teeth is similar to the overhang comb teeth because the overhang comb teeth enter and exit.
The cross section is a vertically long rectangle, and the grooves of the comb teeth are formed deeper than the conventional constant speed type conveyor,
In the comb teeth having such a structure, when the pallet body comb teeth and the overhanging comb teeth pass from the curved portion to the straight portion, it is necessary to smoothly perform the up-and-down movement of the overhanging comb teeth on the pallet body comb teeth.

Further, in the case of the comb teeth of the variable speed conveyor, a certain gap must be secured in order to avoid contact between the overhanging comb teeth and the comb teeth of the pallet due to the front and rear pallets being shaken. When the gap is widened, the scaffold becomes unstable, giving a passenger an uneasy feeling.

It is an object of the present invention to provide a variable-speed passenger conveyor that solves the above-mentioned problems.

[0014]

A first means for solving the above-mentioned problem is that a traveling wheel runs on a traveling rail formed in a loop on a transport line and a return line from an entrance to an exit, and A variable-speed passenger conveyor that changes the conveyance speed by changing the distance between adjacent pallets by changing the width of the guide rails, and is pivotally attached to the pallet body comb teeth formed on the pallet tread surface and the pallet end. And a protruding comb tooth which moves in and out of the adjacent pallet body comb teeth and bridges the pallets. The protruding comb tooth is a variable-speed passenger conveyor characterized in that a concave portion is formed on the lower side.

According to the first means, when the pallet approaches the reversing portion from the straight portion, the concave portion is formed below the intermediate portion of the overhanging comb tooth, so that the contact angle with the adjacent pallet end portion is reduced. Since it is small, the rising height of the tip of the overhanging comb tooth can be suppressed. For this reason, the floor height of the boarding / alighting section can be set low.

A second means for solving the above-mentioned problem is characterized in that the running rail is formed with an inclined portion in a section from the reversing section to the entrance and in a section from the exit to the reversing section. The variable-speed passenger conveyor according to the first means.

According to the second means, the angle of refraction with the adjacent pallet becomes small due to the inclined portion of the traveling rail,
Since the rising angle of the overhanging comb tooth can be reduced, the rising height of the tip of the overhanging comb tooth can be suppressed as in the first means. For this reason, the floor height of the boarding / alighting section can be set low.

A third means for solving the above-mentioned problem is characterized in that the overhanging comb teeth are supported by a metal fitting projecting from the pallet main body at a pivotal connection portion with the pallet. The variable-speed passenger conveyor according to the first means.

According to the third means, even if a passenger rides on the overhanging comb teeth and a load acts on the pivoting portion, the pivoting portion is provided by the metal fitting penetrating the intermediate portion of the overhanging comb tooth. Therefore, the concentration of the load at the pivot portion is dispersed, and no bending occurs.

A fourth means for solving the above-mentioned problem is that the pallet body comb teeth formed on the upper surface of the pallet have a trapezoidal cross section, and the overhanging comb teeth have an inverted trapezoidal cross section. The variable-speed passenger conveyor according to the first means, wherein:

According to the fourth means, the grooves formed by the pallet body comb teeth having a trapezoidal cross section are
Since the overhanging comb teeth whose cross section is formed in an inverted trapezoidal shape mesh with each other, the up and down movement between the comb teeth is performed smoothly,
Since the gap between the pallet body comb teeth and the overhanging comb teeth can be formed to a minimum, and since the cross section is formed in a trapezoidal shape or an inverted trapezoidal shape, the strength of the comb teeth can be ensured and passengers can feel secure.

A fifth means for solving the above-mentioned problem is the variable speed as described in the first means, wherein the traveling wheel is provided with a flange and an auxiliary guide is partially provided below the traveling rail. Type passenger conveyor.

According to the fifth means, the running wheels are prevented from coming off, and the pallet body is prevented from laterally swaying, so that the overhanging comb teeth and the pallet body comb teeth are meshed well.

A sixth means for solving the above-mentioned problem is characterized in that a comb tooth guide is provided above both ends where the overhanging comb teeth and the pallet body comb teeth mesh with each other. It is a variable-speed passenger conveyor.

According to the fifth means, the overhanging of the overhanging comb teeth and the pallet body comb teeth in the up-down direction is performed well.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing an outline of a transport form of a variable-speed passenger conveyor according to the present invention.

In FIG. 1, reference numeral 1 denotes a pallet running rail disposed in a loop on a conveyor line. S1
Is an inclined portion of the traveling rail 1, S2 is an acceleration zone from the entrance to the high-speed zone, S3 is a high-speed zone, S4 is a deceleration zone from the high-speed zone S3 to the exit, and S5 is a traveling rail to the reversing portion S6. In the inclined section 1 and on the return line, S7 is an acceleration zone from the reversing section S6, S8 is a high-speed zone, S9 is a deceleration zone, S10 is a reversing section, and the reversing section S10 is a section where the traveling rail 1 is inclined. It reaches S1 which is a part. A is a section for transporting passengers.

Reference numeral 2 denotes a drive chain, and reference numerals 3 and 4 denote a chain sprocket. A drive shaft is connected to one of the chain sprockets 3 and 4, and a driving force in the direction of arrow B is transmitted to the drive chain 2.

FIG. 2 is a partially enlarged side view showing an example of a pallet driving mechanism in the high speed zone S3 of the present invention. Only one pallet is shown, and the high speed zone S8 of the return line is upside down.

In FIG. 2, reference numeral 5 denotes a pallet, and hardware 2a of the drive chain 2 sequentially engages with a concave portion 5b provided at an end of an engagement fitting 5a of the pallet 5 from below to move the pallet 5 in the transport direction. Drive. Therefore, the high speed zone S
In S3 and S8, there is no guide rail to be described later, and the interval (transport speed) of the pallet 5 in the transport direction is determined by the interval of the hardware 2a of the drive chain 2, and the entire driving force of the pallet 5 is also given at this position.

Reference numeral 6 denotes an overhanging comb tooth pivotally attached to the tip of the pallet 5, which forms a bridge tread when the interval between the pallets 5 is widened.

FIG. 3 is a schematic bottom view of the pallet 5 showing one example of the acceleration means of the acceleration zones S2 and S7 of the variable speed passenger conveyor according to the present invention, as viewed from the back.

In FIG. 3, reference numeral 5 denotes a pallet. The pallet 5 is connected to an adjacent pallet 5 in a diamond shape by four links 7 pivotally connected to each other. It is an intermediate pivoted part that is worn, and the pivotal joints 9 on both sides are structured to follow a change in the width of the guide rails 10, 10.

Therefore, in the acceleration zone S2 from the entrance to the high-speed zone S3 or the acceleration zone S7 from the reversal part S6 of the return line to the high-speed zone S8, the guide rail 10 is used.
The width of the pallet 10 is gradually narrowed, and the link 7 is moved inward at the pivots 9, 9 on both sides, and the link 7 becomes an open rhombus, and the interval between the pallets 5, 5 is widened as shown in the figure. It becomes an acceleration state.

The guide rails 10 and 10 are also provided in pairs in the deceleration zone S4 from the high speed zone S3 to the exit or the deceleration zone S9 on the return line. In the deceleration zones S4 and S9, the guide rails 10 and 10 are provided. The link 7 is formed in a structure that expands in the opposite manner as described above, and the link 7 is moved outward at the pivot portions 9, 9 on both sides, and the link 7 becomes a narrow rhombus and the interval between the pallets 5, 5 is It narrows down and enters a deceleration state.

The driving means and acceleration / deceleration means for the pallet 5 described with reference to FIGS. 2 and 3 are merely examples, and are not the gist of the present invention.

FIG. 4 is a plan view showing a pivotal connection portion between the overhanging comb teeth and the pallet body comb teeth according to the present invention.

The overhanging comb teeth 6 are formed on the tread surface when the pallets 5, 5 are separated from each other in the acceleration zone S2 from the entrance to the high speed zone S3 or the acceleration zone S7 from the inversion portion S6 of the return line to the high speed zone S8. It is a bridge.

At the base end portion of the overhanging comb teeth 6, a shaft 60 is provided in a lateral direction (a direction perpendicular to the conveying direction), and the shaft 60 is fitted and supported by a bearing 50a of the pallet body. . The shaft 60 has a circular cross section in the sections a and b and the bearing 50a of the pallet body comb teeth 50,
The other portions are square cross sections.

Reference numeral 61 denotes a protrusion prevention arm for restricting excessive rotation of the overhanging comb teeth 6 at the reversing portion.

FIG. 5 is a sectional view taken along the line AA of FIG. 4, wherein the lower end of the base 6a of the overhanging comb tooth 6 is cut out, and the metal fitting 50c of the metal fitting arm 50b provided below the pallet body comb tooth 50 is used. The shaft 60 is supported. By supporting the shaft 60 with the metal fitting 50c, the lateral deformation of the overhanging comb teeth 6 is prevented.

Further, a concave portion 6b is provided at a lower portion of the intermediate portion of the overhanging comb teeth 6, and in the reversing portions S6 and S10, when the pallet 5 passes through the curved portion, the protrusion of the tip of the overhanging comb teeth 6 is reduced. It is provided in order to.

FIG. 6 is a cross-sectional view taken along the line BB of FIG. 4, and the overhanging comb teeth 6 are arranged with inverted trapezoidal comb teeth.
The outer comb teeth 6c are formed slightly higher than the inner comb teeth 6d. With such a configuration, the meshing with the comb teeth of the pallet main body is favorably performed.

FIG. 7 is a cross-sectional view showing a state where the comb teeth of the pallet main body according to the present invention and the protruding comb teeth from the adjacent pallet are engaged.

In FIG. 7, reference numeral 5 denotes a pallet;
Are running wheels that roll on the running rail 1. 61
Is a protrusion prevention arm fixed to the shaft 60 of the overhanging comb teeth 6, and in the reversing portions S6 and S10, the roller 62 at the tip is guided by a guide (not shown), and
To prevent excessive rotation.

Reference numeral 5c denotes a comb tooth having a trapezoidal cross section, which forms a pallet body comb tooth 50 formed on the upper portion of the pallet 5.

The trapezoidal comb teeth 5 of the pallet body comb teeth 50
The outer comb teeth 6c and the inner comb teeth 6d of the overhanging comb teeth 6 are engaged with each other with a minimum gap. Since the gap between the trapezoidal comb teeth 5c, 5c has a shape expanding upward, smooth engagement with the outer comb teeth 6c and the inner comb teeth 6d of the overhanging comb teeth 6 is performed. Reference numeral 52 denotes a guide roller that rolls in the guide rail 10.

The running wheels 51 of the present invention are
If the auxiliary guide 51b is provided at the lower part of the traveling rail 1, the lateral displacement of the pallet due to the sudden lateral movement of the passenger and the like, and the traveling wheel 51 comes off from the traveling rail 1. Ring, no occurrence. In particular, it is desirable that the auxiliary guide 51b be provided side by side with the traveling rail 1 near the entrance.

When the mutual movement of the pallets 5, 5 is prevented, the pallet body comb teeth 5c and the overhang comb teeth 6 mesh smoothly.

Reference numeral 11 denotes a comb guide provided below the balustrade (not shown). The overhanging comb teeth 6 have a structure in which the overhanging comb teeth 6 can freely rotate upward about the shaft 60 in the transport line A. Therefore, if the overhanging comb teeth 6 are lifted up by a foreign object or an umbrella of a passenger, etc. The comb teeth guide 11 prevents the meshing with the teeth 5a from becoming poor.

FIG. 8 is a side view of the reversing section S10 and the sloping section S1 zone of the running rail according to the present invention, showing the pallets 5, 5 being reversed.

An overhanging comb tooth 6 is pivotally supported at the front end of the pallet 5, and when the curve of the traveling rail 1 is turned, the overhanging comb tooth 6 comes into contact with a comb tooth guide roller 12 at the rear end of the front pallet 5. Although the front end is in a state of jumping up and down, since the concave portion 6b is formed on the back surface of the overhanging comb tooth 6, the degree of jumping becomes small as shown by the broken line diagram and does not come into contact with the back surface 13a of the getting on / off floor 13, so that the passenger gets on and off. Floor 1
3 of the height H ₁ can be formed low. Reference numeral 13b denotes fixed comb teeth of the transfer portion, and reference numeral 14 denotes a frame of the traveling rail 1.

[0053] Further, by providing the inclined portion 1a to the running rail 1, it is possible to further reduce the popping out degree of overhang comb 6 can be formed lower height H ₁ of the landing floor 13.

The decrease in the height of the landing floor 13 is related to the size of an underground excavation trench or a structure for installing a passenger conveyor, and therefore leads to a reduction in cost.

[0055]

As described above, the present invention has the following effects. (1) Since the inclined portion is provided in the concave portion below the overhanging comb teeth or the traveling rail, the angle at which the overhanging comb teeth rise at the reversing portion can be reduced, and the height of the boarding floor can be reduced. Installation cost is low. (2) Getting on and off is safe because the floor of the getting on and off can be formed gently. (3) The cross section of the pallet body comb teeth is trapezoidal, and the cross section of the overhanging comb teeth is inverted trapezoidal, without impairing the strength.
Since an appropriate gap is secured, the meshing is smooth, and the overhanging comb teeth are supported by the support bracket at the middle, so the strength is secured and there is no possibility of bending. (4) Since the running wheel of the pallet does not laterally shake due to the brim of the running wheel and the auxiliary guide, the lifting and lowering operation of the overhanging comb tooth with respect to the pallet body comb tooth is smoothly performed in accordance with the effect of the cross-sectional shape of the comb tooth. It can be carried out.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a transport form of a variable-speed passenger conveyor according to the present invention.

FIG. 2 is a partially enlarged side view showing an example of a pallet driving mechanism in a high-speed zone S3 of the present invention.

FIG. 3 is a schematic bottom view of a pallet showing an example of acceleration means in acceleration zones S2 and S7 of the variable-speed passenger conveyor according to the present invention, as viewed from the back.

FIG. 4 is a plan view showing a pivotal connection portion between the overhanging comb teeth and the pallet body comb teeth according to the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a sectional view taken along line BB of FIG. 4;

FIG. 7 is a cross-sectional view showing a state where the comb teeth of the pallet main body according to the present invention and the protruding comb teeth from the adjacent pallet are engaged.

FIG. 8 is a side view of the reversing portion S10 and the inclined portion S1 zone of the traveling rail according to the present invention.

[Explanation of symbols]

 S1 Slope of traveling rail S2 Acceleration zone from entrance to high-speed zone S3 High-speed zone S4 Deceleration zone from high-speed zone S3 to exit S5 Slope of traveling rail S6, reversal part S7 Acceleration zone from reversal part S6 S8 high-speed Zone S9 Deceleration zone S10 Reversing section A Passenger transporting section 1 Running rail 2 Drive chain 2a Hardware 3 Chain sprocket 4 Chain sprocket 5 Pallet 5a Engagement fitting 5b Recess 5c Trapezoidal comb 50 Pallet body comb tooth 50a Pallet body comb tooth Bearing 50b Receiving tool arm 50c Receiving tool 51 Running wheel 51a Running wheel flange 51b Auxiliary guide 52 Trapezoidal comb teeth 6 Overhanging comb teeth 6a Base 6b Recess 6c Outer comb teeth 6d Inner comb teeth 60 Overhanging comb teeth shaft 61 Protrusion prevention arm 62 Roller 63 Guide roller 7 Link 8 Intermediate pivot part 9 Pivot part 10 Guide rail 11 Comb tooth guide 12 Comb tooth guide roller 13 Getting on and off floor 13a Back side of getting on and off floor 14 Frame of running rail

Claims (6)

[Claims] 1. A traveling wheel runs on a traveling rail formed in a loop on a transport line and a return line from an entrance to an exit, and the interval between adjacent pallets is changed by changing the width interval of a guide rail. A variable-speed passenger conveyor for changing a transport speed by moving a pallet body comb tooth formed on a pallet tread surface and an adjacent pallet body comb tooth pivotally attached to an end of the pallet to bridge between pallets. A variable-speed passenger conveyor, comprising overhanging comb teeth, wherein the overhanging comb teeth have a recess formed on the lower side. 2. The variable-speed passenger conveyor according to claim 1, wherein the traveling rail has an inclined portion formed in a section from the reversing section to the entrance and a section from the exit to the reversing section. . 3. The variable-speed passenger conveyor according to claim 1, wherein the overhanging comb teeth are supported by a metal fitting projecting from the pallet main body at a pivotal connection portion with the pallet. . 4. The pallet body comb teeth formed on the pallet tread surface have a trapezoidal cross section, and the overhanging comb teeth have an inverted trapezoidal cross section. The variable speed passenger conveyor as described. 5. The variable-speed passenger conveyor according to claim 1, wherein the traveling wheel is provided with a flange, and an auxiliary guide is partially provided below the traveling rail. 6. The variable-speed passenger conveyor according to claim 1, wherein a comb tooth guide is provided above both ends where the overhanging comb teeth and the pallet body comb teeth mesh with each other.