JP2000136083A - Shuttle type continuously carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the turn back bending of a tread while keeping the drive system of right/left of the tread by providing a guide mechanism for converting a stroke direction while maintaining the connection. SOLUTION: In a shuttle type continuously carrying device, flat surfaces 110, 120 of the top of a rib and tooth contacting with a belt receive plate 01 using a carrying belt 1 with teeth having the loading surface 10 of a flexible material such as a hard rubber, on whose back surface the ribs 11 and teeth 12 are provided, are constituted so as to be parallel with a loading surface 10. Thus, in order to turn back the advancing carrying belt 1 without telescoping, the carrying belt 1 advancing in a horizontal plane at oneside is run in a horizontal direction 1b, after 180 deg. winding on the cylindrical surface 30 having a center axis 3a slanted by 45 deg. for the advance direction 1a. Then, the carrying belt 1 is pointed in the advance direction 1c and an opposite direction and can be turmed back without changing on the surface when it is 180 deg. rotated after winding on the cylindrical surface 40 with the same diameter slanted in the slant cylindrical surface and opposite direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous conveying device in which a forward and backward strokes are three-dimensionally connected, and saves materials and simplifies a structure on an escalator, a moving sidewalk, a moving slope and a material conveyor.・ Contribute to saving installation costs and energy consumption.

[0002]

2. Description of the Related Art Conventionally disclosed reciprocating escalators and moving walkways have a structure in which a tread surface moves two-dimensionally in a turning section, so that a stepping step as provided in an ordinary escalator or the like is used. The drive elements (roller chains or links or racks) on both sides cannot be provided, and the continuous elements are limited to one inside or at the center, and the tread is difficult to avoid becoming unstable during running, and the structure is complicated Therefore, despite the large number of inventions, none has been put into practical use at present.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to develop a continuous transport device having a continuous drive element on both sides of a tread surface in a direction changing section.

[0004]

A three-dimensional mechanism is required to fold a straight-ahead strip without expansion and contraction. As a practical method, there are a process performed by turning over by 180 ° and a process performed by turning over by 90 °. First 18
Considering the case of turning over by 0 °, in FIG. 1A, the traveling direction 1a of the band-shaped object 1 that travels straight along the horizontal plane.
A horizontal cylinder 30 whose axial direction forms an angle A and contacts the lower side.
When the belt-shaped object 1 is wound around, 1 forms a helicoid and turns 180 °, and 2 (90 ° -A) in the direction 1a.
The vehicle travels horizontally in the direction of the slope 1b. Then direction 1b
When 1 is wound around a horizontal cylinder C2 (having the same diameter as C1) that makes an angle B in the axial direction and is in contact with the belt-shaped object 1 at the upper side, 1 draws a helicoid and turns 180 °. I do. In order for the directions 1a and 1c to be parallel, 2 (90 ° −A) +2 (90 ° −B) = 180 ° and therefore A + B = 90 ° from FIG. 3 by the parallel line theorem. B is an angle formed between the strips 1 and 40 in which C2 turns and runs parallel to 1a. In particular, when A = B, A = B = 45 °, which is advantageous in terms of design and manufacture. Therefore, the description will be limited to this case. In the case of a carrier that travels on a rail instead of a strip, a mechanism that travels guided by helicoid rails drawn around the axes 3q and 4a of the cylinders 30 and 40 instead of the cylinders 30 and 40, respectively. . When a circular rod or a circular tube is used as the rail, design and manufacture are easy. In the case of running on a slope surface, the horizontal plane is read as the slope surface.

As shown in FIG. 1 (a) plan view and (b) side view, a belt-like body 1 which goes straight in a horizontal plane on one side.
Is wound 180 ° around a cylindrical surface 30 having a central axis 3a inclined 45 ° with respect to the traveling direction 1a, and then wound in a horizontal direction 1b.
And then wound around a cylindrical surface 40 of the same diameter inclined in the opposite direction to the inclined cylindrical surface and turned 180 °,
The band-like body 1 becomes the traveling direction 1c, and 1c is in the opposite direction to 1a, and there is no change in the surface. If there is a driving element or a supporting element on the back side of the strip 1, their enveloping surface is generally a threaded surface, and the operation is stabilized by guiding the portion by a guide surface based on a part of the threaded surface. Sometimes we try. When the belt is replaced with a row of steps and the steps are driven by a roller chain, the parts driven by the left chain and the parts driven by the right chain must be in a twisted positional relationship. The two parts are connected to each other with a horizontal cylindrical shaft so that they can be twisted relatively, and the rollers are obliquely point-corroded to the guide cylindrical surface, and the guide rail is made a circular tube to simplify the guide surface. Take measures such as planning. The inclination angle of the central axis 3a is not limited to 45 °, and the central axis 4a of the inclined cylinder 40 and the inclined cylinder 30
May be perpendicular to the center axis 3a, but the case of 45 ° inclination is practically advantageous.

[0006] In the case of a method in which the step is turned upside down by 90 °, as shown in FIG. 13 (a) side view and FIG. 13 (b) plan view, in order to avoid interference with the floor surface 04, a specific inclined traveling section E → F is provided, and by the function of the helical guideway,
The platform X comes to a position which is turned upside down by 90 ° with the boarding surface X0 facing outward. A stagger angle δ is formed between the X-th tread surface and the (X + 1) -th tread surface by a twist angle corresponding to the depth B of the tread surface (≒ pitch of the step platform). Next, the relaxation section FG
After (curvature 1 / Re), the step is turned by the upper sprocket S1 and the lower roller guide surface S2 (circular arc), and moves to the turn-back section F'E 'through the relaxation section G'F'. In order to avoid interference due to approach of the tread during screw motion, B
(1−cos δ) An interphase part (consisting of a ridge X01, a protruding part X02 at the groove bottom, and a groove bottom concave part X03 filled with foam rubber) having a gap on the left and right is provided.

[0007]

[Function] In the case of a reverse turning, each of the treads is turned in a screw motion by turning around an axis which is parallel to the tread and inclined at an angle of 45 ° in the opposite direction to the traveling direction under the tread. The side part is guided, and the driving force transmission mechanism operates.
In this case, the treads belonging to the respective drive elements are connected to each other in a torsionable manner. After the tread surface moves to the opposite stroke side in the left-right direction, the screw motion turning around the axis inclined at 45 ° in the opposite direction is combined, so that the moving body moves to the opposite stroke side, and the turning operation is performed. Is completed. By the three-dimensional mechanism, folding is performed in a state where the driving mechanism is preserved. The guide surface works so that the moving part does not come off at the folded part. Since the left and right systems are driven not by the terminals but by the electric motor with a speed reducer 09 at a plurality of places during traveling, the space of the terminals does not become excessive and the load on the chain is reduced.

In the case of the inverted turning of the step, there is a difference in the twist angle between the preceding step and the succeeding step, which corresponds to the depth of the tread surface. In the arc-shaped turning portion C0 via the FG (radius Re), the upper chain 61 meshes with the sprocket S1, and the lower chain 61 'is guided and transmitted by the arc guide surface S2. Thereafter, the twist is returned from G'F'E 'to 90 ° → 0 °. B = 300 mm and width = 4 as illustrated in the figure.
In the case of 00 mm, if the inversion is completed in a stroke of 1800 mm, the stagger angle of the adjacent tread surface becomes 90 ° ÷ 6 = 15 °, and there is no riser interference. Although the tread surface is not divided into two parts as in the case of turning over, it is suitable when the width is narrow.

[0009]

[Embodiment] The embodiment of the application example of the inside-out type is shown (the inverted type is sufficiently attached and omitted above). (1) Flexible mounting surface Toothed conveyor belt having a mounting surface 10 of a flexible material such as hard rubber. 1, as shown in the perspective view of FIG. 1D, the rear surface is provided with ribs 11 and teeth 12, and the flat surfaces 110 and 120 on the top of the ribs and teeth that come into contact with the belt receiving plate 01 are mounted surfaces. 10
The case in which it is parallel will be described. A plurality of x teeth (x = 1, 2, 3,...) Are provided in the entire width on the back surface, and the toothed belt wheel 2XY (X = 1, 2, 3, 3) is provided at a plurality of locations.
..: Y = 1, 2, 3,...). The shape of the rib 11 is not limited to a specific shape, but an oblique lattice having an angle of 45 ° with a rib parallel to the generatrix 3g of the inclined cylinder is suitable in view of the contact state with the inclined cylindrical surface 30 of the folded portion. The top of the back surface of the conveyor belt 1 is wound around the surface 30 of the rotatable 45 ° inclined cylinder 3,
Even if there is no slip in the circumferential direction of the cylinder, there is slip in the generatrix direction. In order to secure the meshing area of the teeth in the vicinity of the turning back portion and to secure the belt tension corresponding to the extension of the belt 1, a tension cylindrical wheel 4 is provided to hold down the belt surface (mounting surface) 10 and to set the installation position. Adjust the belt tension as movable. The belt 1 is backed up in a row of backup wheels 31 between the inclined cylinders 30-40. In the toothed conveyor belt 1, the flat surfaces 110 and 120 on the tops of the ribs and the teeth slide on the belt receiving plate 01. Driving of the system is performed at a plurality of positions during the travel of the toothed belt portion.

(2) In the case of using a row of roller chain driven steps: Since the movement around the inclined axis has a time lag between the left and right parts, as shown in the plan view of FIG.
Is divided into a left half 51 and a right half 52, and both are flexibly divided into a pin 53 and a spring 54 concentric with the left and right drive rollers.
Figure 3 shows the left step and the right step
(A), (b) The structure is such that it is driven through reciprocation by the twistable roller chain 61 illustrated. The chain comprises a U-shaped link 6 pinned to the roller links 65, 66 of FIG.
7 and 68 are fixed to the thrust needle roller bearing 6 by longitudinal bolts 78.
The structure is such that they are connected via 9a and 69b. Rollers for supporting the tread surface and maintaining the posture have the respective guide surfaces arranged below the tread surface. As shown in the side view of Fig. 2 (b), the center axis of each roller is the perpendicular bisector of the tread surface. Is set at the vertex A of the isosceles triangle having the vertical line as the vertical line, and the center of the axes of the adjusting rollers 7 and 8 are set at both ends B and C of the base. The guide surfaces 60, 70 and 80 for each roller include
A tiltable cylinder passing through A, B and C is used by fixing a bendable round bar or a circular tube serving as a center base cylinder to the base cylinder. Rollers and guide surfaces are provided on each half of the platform,
The right half has no suffix and the left half has a suffix '.
The signs on the opposite side follow the corresponding parts. FIG.
As shown in (c), the auxiliary roller 64 holds the pipe 60 and prevents the step 5 having the roller 6 from rising. The tread surface is elastically supported by the soft surface of the backup wheel 31 between the two inclined shafts. Make the pin of the platform link roller chain 61 hollow,
Pins 55 protruding laterally from each step are fitted into hollow pin holes, and the ends thereof are supported by brackets 9 fixed to the steps. As shown in FIG.
It is in continuous contact with the 0,40 basic roller guide path, and the left and right halves of the step are flexiblely connected and guided helically around the inclined cylindrical surfaces 30,40 by the round bar guide surfaces, respectively, and are restored when the folding is completed.

(3) In the case of a belt-type escalator A structure in which a triangular corrugation having a one-sided side riding slope is provided on a belt on an inclined traveling portion is known, but the teeth of the comb portion are excessively long, and the gap of the comb valley is provided. Will also be excessive. To avoid this drawback, as shown in FIG. 5, the slope of the mountain is moderated and the slope of the tread is set within the allowable limit (12 ° for metal surfaces and 15 ° for non-metal surfaces). As a rule, rise is first, and fall is first. FIG.
As shown in (a), the bar 15 having an isosceles triangular cross section having a base angle β of about 8 ° to 15 ° is approximately 40 to 55 cm.
Are provided at equal intervals with a pitch P, and the traveling inclination angle α is approximately 2
β. In the illustrated example, β = 12 °, α = 24 °, the front-rear width B of the cross section B = 18 × 2 cm, the front-rear width C of the non-cross section = 10 cm,
The pitch P was set at 46 cm, and emphasis was placed on the passenger's sense of security. Α = 26 for subway stairs with a slope of 0.5
° 34 'and β = 13 ° 17'. A large number of lateral grooves 16 are provided on the surface of the toothed belt 1 to increase flexibility, and grooves 17 in which the combs 06 fit are provided at regular intervals. However, since the depth gap changes between the teeth of the comb, safety is ensured. Figure 6 for
As shown in (a) a side view and (b) a plan view, a comb 07 whose tip moves up and down following the belt surface is provided on the comb 06.
If the entrance / exit section has a slope with an inclination angle β, the passenger will get on and off the horizontal plane, and there is little discomfort. This type has a simple structure, is suitable for mass production, is easy to install and maintain, and is suitable for use as escalators on existing stairs. The disk 35 is placed near the belt edge.

(4) In the case of a parallel type of a twistable roller chain with a tread element, various tread elements 1x provided on one side extension of a connection link of the torsion roller chain are laterally moved with an elastic rod penetrating a hollow pin. In parallel, the treads can be used for moving walkways, moving slopes and escalators. The direction of the tread element may be parallel to the moving direction of the chain on the moving sidewalk and moving slope,
The escalator has a slope. If the inclination is the inclination traveling angle is less than the inclination regulation value as a slope, it take equal angle of inclination β to the running inclination angle α, but if it exceeds the regulation value [delta] _o must be taken within regulatory limits. For example, when δ _o = 12 °, α = 24 ° and β = 12 °
In this case, the inclination angle of the tread surface with respect to the horizontal plane is 12 ° (in the inclined traveling section, the heel goes down on the uphill, and the toe goes down on the downhill), which is within the allowable range assuming that the slope is not horizontal but moves. FIG. 7 shows an example of a roller chain with a tread surface in an escalator, in which (a) is a plan view and (b) is a side view. The roller chain used is basically the same as the screw-type roller chain shown in FIG. 3 of (3), but as shown in the plan view and the side view of FIG. The height of the link extension is determined such that the tread element provided at one end (upper side in the figure) of the tread is located within the combined plane of the horizontal plane and the inclined plane in the figure. A gap is provided between the surface elements to prevent interference when the chain is bent. Chain hollow pin 55a
The elastic bar 55b is penetrated through and the both ends thereof are fixed, so that the horizontal arrangement of the chains is aligned, and a structure is taken into consideration so that the chain row is not disturbed even at the folded portion. There are various methods of joining the tread element to the extension of the link, such as welding, screwing, fitting, and bending of the extension, and are not limited to a specific method. The lateral spacing of the chains is determined in consideration of the width of the comb and the length of the hollow pins is correspondingly determined. Needle roller bearings may be used to reduce frictional wear of the rollers. In the case of a moving sidewalk, no slope is provided. In the case of a moving slope, it is usual that no slope is provided. However, when the running slope is equal to the slope of the provided slope, the sloped tread surface becomes horizontal during running.

(5) In the case of a wide-area circulation-type moving sidewalk As an example of a case where the path is not turned immediately but is turned one after another in one direction as in the case of making a round in a wide building, a right angle is used. The case of a folded belt-type moving sidewalk will be described. As shown in FIG. 8, after the belt is wound around the 45 ° inclined cylindrical surface 30 submerged under the floor, the belt moves at a right angle to the traveling direction, and at a right angle to the traveling direction, the large-diameter cylindrical surface 50 is larger in diameter than the inclined cylinder 30. 180 ° wrap, the original traveling direction 1
Appears as a moving sidewalk perpendicular to a. If it turns at right angles in four places, one round is completed. When a tilt angle δ is given to 50 as shown in FIG. 90, a process having a bend of 90 ° + 2δ is derived. For example, in the case of a regular N-gon, δ = 45 ° −180
° / N. In addition, the stroke can be determined in any direction by a combination of the directions of the cylindrical surface 30 and the large cylindrical surface 50. In the case of running parallel with a streak in the middle of the circulation, the axes of the cylinders C1 and C2 may be parallel as shown in FIG. The inclination angle between C1 and C2 may be arbitrary, but generally 45 ° is practical. To make an escalator of a curved staircase like a subway staircase, it is only necessary to use the mechanism of FIG. 9 to bend at a bend (horizontal plane) of a bent part, and to make a reciprocating integrated escalator of a bent staircase which was conventionally impossible Is realized.

(6) In the case of increasing the speed In order to increase the speed of the continuous transfer device according to the present invention, the present inventor has described a "high-speed continuous transfer device system" (August 1998)
(A patent application dated March 18) is applicable. It is dangerous to directly get on or get off the tread surface that is running at high speed from the floor (stationary), so use a method of moving at high speed via low speed, medium speed, or vice versa. In particular, the transfer portion between high speeds is a problem. In order to secure a space for accommodating the drive system, the transfer is performed between the moving slopes. FIG. 10 shows an example applied to a moving sidewalk. Since the upper limit of the slope angle is regulated, the slope angle within the limit is given to each of the low speed L, the medium speed M, and the high speed H. That is, in the continuous transfer device of the present invention, it is necessary in this case to provide appropriate slope portions 18 and 19 at both ends of the high-speed traveling portion.

(7) In the case of an escalator in which a tread surface for mounting a wheelchair is permanently installed. A product in which a part of a row of steps of a normal escalator can be transformed into a wheelchair can be used, but the structure is simplified. In order to make it easier, there is Japanese Patent Application No. Hei 9-348439 filed by the present inventor as a method of permanently installing a wheelchair mounting tread surface. An example in which the present invention is applied to the simplest of them will be described. The depth of the tread required for mounting the wheelchair is 1100 to 1200 mm. On the other hand, the depth suitable for human boarding is usually 400 mm, but in practice it is sufficient if it is 270 to 280 mm.
In consideration of the fact that the tread surface actually used is only 2/3 of the number of treads on the running surface even if the tread is 00 mm, the depth of the tread surface is set to 280 × 2 = 560 mm to increase the utilization rate and the tread for wheelchair mounting. 280 × 4 =
1120 mm, excess value 1120-560 = 560
mm is assigned to the tread before and after the wheelchair-mounted tread, and the depth of the tread before and after is 560-280 = 280.
mm. As shown in FIG. 11, a side view of a row of steps on the basis of this is a normal steps 56 and 57 and a step 58 for mounting a wheelchair.
(With car stop recess), reduced steps 591 and 592 (symmetrical)
If the running inclination angle is 27 °, the rise is 254.
mm. As another example, a normal step depth of 480 mm,
Wheelchair platform depth 1200mm, reduced excess platform depth 300m when excess value is equally divided into two front and rear
m, if the running inclination angle is 27 °, the rise is 218 mm,
There is room.

(8) When a Twistable Link is Used If a twistable link is used as a driving element, it corresponds to the case where the pitch of the chain in (2) is equal to the pitch of the step platform. Example of Link Structure FIG. 12 is a view similar to FIG.
The structure is such that the U-shaped links 67 and 68 are screw-connected with longitudinal bolts 78 via thrust bearings 69a and 69b, with the toothed surface 61b being driven. If the refraction at the axis 71 is locked, it can be transmitted even when pushed, unlike a chain.

[0017]

According to the present invention, the tread surface can be folded and bent while the drive system on the left and right sides of the tread surface is preserved, and an economical continuous reciprocating stroke continuous transfer device with stable operation is realized.

[Brief description of the drawings]

FIG. 1 is a diagram when a toothed conveyor belt is used,
(A) a plan view of a folded portion, (b) a side view of the same,
FIG. 3C is a plan view of an asymmetric shape, and FIG.

FIGS. 2A and 2B are diagrams illustrating a case where a step array using a roller chain is used, in which FIG. 2A is a plan view of an inclined traveling unit, FIG. 2B is a side view of the same, and FIG.

FIG. 3 is a view of a twistable roller chain, in which (a) is a side view and (b) is a plan view.

FIG. 4 is a plan view showing the shape of a round bar-shaped guide surface in the vicinity of a folded portion.

FIG. 5 is a schematic side view of a belt-type escalator.
(Moving railing illustration omitted)

FIGS. 6A and 6B are views of a comb portion, wherein FIG. 6A is a side view, and FIG.

FIG. 7 is a twistable roller chain with a tread element.
(A) It is a top view, (b) It is a side view.

FIGS. 8A and 8B are views showing a folded portion of right-angle turning, and are a plan view and a side view, respectively.

FIGS. 9A and 9B are views showing a folded portion of a non-right-angled turning, in which FIG. 9A is a plan view, FIG. 9B is a side view, and FIG.

FIG. 10 is a diagram showing an example of a high-speed moving sidewalk;
It is a side view of the whole, (b) It is a top view of a folded part. (Moving railing illustration omitted)

FIG. 11 is a side view of a wheelchair-mounted permanent step and an adjacent step.

FIG. 12 is a view of a twistable link, (a) a side view,
(B) It is a top view.

13 (a) is a side view showing the movement of the drive chain urging portion, FIG. 13 (b) is a plan view perpendicular to the sprocket shaft, and FIG. 13 (c) is a plan view of the end of the counter stool. is there.

[Explanation of symbols]

01: belt receiving plate, 1: toothed conveyor belt, 10
... mounting surface, 12 ... belt teeth, 30, 40 ... inclined cylindrical surface, 50 ... folding large cylinder, 04 ... floor surface, 31 ...
Backup car, 4 ... Tension cylindrical car, 5 ... Stepping board, 5
1 ... 5 left half, 52 ... 5 right half, 53 ... connecting pin, 55 ... step driving pin, 56,57 ... normal step, 58 ... wheelchair mounting step, 591,59
2, a reduction step, 6: a drive roller, 7, 8, an adjustment roller, 9: a support bracket, 18, 19: a slope portion at the running end, 55b: an elastic rod, 61: a twistable roller chain, 67, 68 ... U-shaped link, 78: longitudinal bolt, 69a, 69b: thrust needle roller bearing,
09: Electric motor with reduction gear, S1: Sprocket.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B66B 21/10 B66B 21/10 Z 23/02 23/02 Z 23/08 23/08 23/10 23 / 10 23/14 23/14 B

Claims (6)

[Claims] 1. The direction of a tread surface connected to be twisted,
A folded continuous transport device comprising a guide mechanism for changing a stroke direction while maintaining a connection by gradually changing with a screw motion. 2. In a turn-back portion of a continuous conveyance device in which a forward stroke and a return stroke are integrally connected, a driving mechanism force receiving portion and a supported portion rotate around an axis inclined toward the next stroke with respect to the traveling direction. After turning with a 180 ° screw motion along the guide surface with the tread surface outside, it shifts to the next stroke side, and around an axis orthogonal to the inclined circular axis, with a 180 ° screw motion along the guide surface. 2. The folded continuous transfer device according to claim 1, further comprising a mechanism for turning to move to the next step. 3. The step platform is divided into two parts at the center in the left-right direction of the tread surface in the traveling process, and both halves are joined by a mutually twistable flexible element. A support roller having a horizontal axis passing through the vertex of the isosceles triangle having the vertex and both end points of the base as the center of rotation is supported at three points, the end and the intermediate part of each half-step, and each step end is supported. The folded continuous transport device according to claim 1, wherein the horizontal pin provided at the center of the portion is driven by a twistable roller chain, and the guide surface of each support roller is provided. 4. A step in the running direction of the tread surface on the tread surface side of the transport belt, the protrusion in the side view having a basic shape of an isosceles triangle whose base angle is an angle equal to or less than the inclination angle regulation value of the moving slope. The folded continuous conveyance device according to claim 1, wherein a plurality of lateral grooves and a longitudinal groove into which the comb fits in the entrance / exit portion are provided. 5. A tread element is provided at one end of each connection link of a twistable roller chain, and the parallel chains are connected by an elastic pin to form a flexible tread surface as a whole. The folded continuous transfer device according to claim 1. 6. In a section in which the direction of the tread surface is parallel to the traveling direction, the tread edges do not interfere with each other,
2. The folded continuous conveyance device according to claim 1, wherein the shape of the end of the tread surface and the shape of the guide rail are determined so that the step is turned upside down by a screw motion and the step is inverted.