WO1999001370A1

WO1999001370A1 - Guide mechanism for connection conveying devices

Info

Publication number: WO1999001370A1
Application number: PCT/JP1997/003613
Authority: WO
Inventors: Masao Kubota
Original assignee: Masao Kubota
Priority date: 1997-07-03
Filing date: 1997-10-08
Publication date: 1999-01-14
Also published as: JPH1121055A

Abstract

A guide mechanism which enables stable travelling of a connection conveying device having a plurality of treads which are connected so that all the tread surfaces are maintained horizontal in forward and rearward paths. Guide rollers are rotatably mounted on bent shafts provided centrally of respective links of that one amoung link trains, which is positioned at the lowermost position, and are guided along guide grooves. Driving for travelling includes driving the guide rollers while being interposed between roller teeth provided on a gear, driving pin teeth provided vertically on the treads, and a combination of the both driving methods. Instead of a parallel link mechanism, single train links and horizontal maintaining rollers can be used in combination to maintain the treads horizontal. The guide mechanism can be applied to small and large width type escalators, moving sidewalk, and moving slope.

Description

Specification

Guide mechanism of the linked transport device

Technical field

The present invention relates to a guide mechanism of a connecting and transporting device that connects a forward stroke and a return stroke in a horizontal plane or an inclined plane and can use a stepping board in a reciprocating stroke. It contributes to simplifying the structure of roads, moving slopes, etc., and ensuring their functions.

Background technology

There are many inventions for a connecting and conveying device in which the forward and backward strokes are connected by a horizontal plane or an inclined plane 、 .However, there is a problem with structural uncertainty and functional uncertainty such as an unstable platform. It is difficult to put it to practical use, and there has been no industrialization.

Disclosure of the invention

An object of the present invention is to provide a mechanism for guiding a stepping platform accurately and securely with a simple mechanism that uses a purely mechanical method with a small number and types of parts, and a drive mechanism suitable for the mechanism. It is.

Depending on the escalator, moving sidewalk, or moving slope, the coupling mechanism is not necessarily the same, but the common thing is that the link between adjacent steps is The link is connected by a link that can be bent, and a roller rotatably provided on the bending shaft is guided along a fixed guide path. The guide mechanism is provided so as not to interfere with the drive mechanism. Center point of adjacent refraction axis The straight line connecting at right angles to the horizontal center line of the step ladder and parallel to the axis of the roller that supports and runs the step ladder (including when they coincide with each other). The force applying portion of the drive mechanism is composed of a guide roller provided at the bending point and a vertical pin provided downward on the inside of the stepping board so as to be equally spaced on the turning circumference in the turning portion. At least one of them is driven as a part of a tooth meshing with the revolving gear. Accuracy is required to drive both at the same time, but due to the flexibility of the structure itself, the error is practically sufficiently absorbed. Rails and rollers for supporting and guiding the platform are provided on the inside and outside. However, since there is no need to use the side surfaces, the structure is simple and the manufacture is easy. A roller follower commercially available from a manufacturer or the like may be used.

If the guide rollers rotatably provided on the refraction axis are accurately and firmly supported and guided firmly, the posture of the platform can be accurately maintained, and the stability of the platform due to the fluctuation of the passenger can be maintained. The structure is simple because it is not disturbed, turns smoothly along the guide surface, and can be driven by the vertical shaft gears. The supporting roller of the step ladder has a parallel link mechanism on the inside (the principle is described in Japanese Patent Application Laid-Open Nos. Hei 3-95095 and Hei 3-106709 filed by the present inventor). When a mechanism is used to maintain the level of the step ladder by using, one is provided at the center on both the left and right sides, one is provided at the center on the inside, and two are provided on the outside. Point support), one with two inside, one with outside center (three point support), and two inside and outside each There is one with four pieces (four-point support). If a single-row link mechanism is used on the inside, one inside the center and two outside (three-point support), two inside and one outside (three-point support), two inside and outside ( Four-point support) Keep the tread level horizontal by supporting at least three points. The three-point support has a small number of rollers, but has three types of rail surfaces. The four-point support has a large number of rollers, but the rail surface is of a small number because two rails can be used on the same plane for each step.

Each link always keeps a right angle with the center axis of the step platform, and it is connected to each other by the universal joint mechanism provided at the lower part of each step platform to assist the support of the guide roller provided at the link bending point. It is possible to provide a pair of connected adjustment links, and to provide a reinforcing link for connecting a support opening roller provided on the center axis line for supporting the step platform and an adjacent refraction axis. Ensure operation.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic plan view of a turning portion of a narrow escalator 1 using a parallel link mechanism according to a first embodiment of the present invention,

FIG. 2 is a side view of the inclined traveling portion of the escalator shown in FIG.

FIG. 3 is a front view of the straight running section and the turning section of the escalator shown in FIG.

FIG. 4 is a schematic plan view of a turning portion of a single-row linkless horizontal maintenance roller type escalator according to a second embodiment of the present invention. FIG. 5 is a side view of the inclined traveling portion of the escalator shown in FIG.

FIG. 6 is a front view of the horizontal traveling section of the escalator shown in FIG.

FIG. 7 is a front view of a horizontal traveling section and a turning section of an escalator using a parallel link, an adjusting link, and a three-support roller according to a third embodiment of the present invention.

FIG. 8 is a front view of a horizontal traveling section and a turning section of an escalator using a parallel link, an adjusting link, and four support rollers according to a fourth embodiment of the present invention. ,

FIG. 9 is a schematic plan view of the horizontal traveling portion and the turning portion of the escalator shown in FIG.

FIG. 10 is a side view showing a moving slope connecting mechanism according to a fifth embodiment of the present invention.

FIG. 11 is an inclined plan view projected on the inclined surface of the moving slope shown in FIG. 10.

BEST MODE FOR CARRYING OUT THE INVENTION Although there are various embodiments of the present invention, the one having a simple structure and high practicability will be described below. First, a narrow escalator with one person on each step and a wide escalator with two persons will be described.

(I) Reciprocating circulation type narrow escalator

The guide mechanism of the present invention is applied to an escalator using a parallel link mechanism disclosed in Japanese Patent Application Laid-Open No. 3-95095 and Japanese Patent Application Laid-Open No. Hei 10-67090 filed by the present inventors. If applied And explain. As shown in FIG. 1 to FIG. 3, the steps 1, 2, 3,... Sequentially form lower parallel links and upper parallel links which are respectively perpendicular to the central axis X1, X2, X3,. A set of links, 51 and 51 ′, 52 and 52 ′, 53 and 53 ′,..., Respectively, provide connecting shafts 91 and 92, 91 ′ and 92 ′; And 9 3 9 2 'and 9 3'; Each link has an axis 510, 5 20; 5 10 ′, 5 2 ′,... That is perpendicular to the running direction in a vertical plane parallel to the running direction provided at the center of the length. It can be bent around. The adjacent upper parallel links 5 1 ′ and 5 2 ′, 52 ′ and 5 3 ′ rotate around connecting axes 92 ′ and 93 ′ at right angles to a vertical plane parallel to the running direction. , And are rotatably connected to each other. Similarly, the adjacent lower parallel links 51 and 52 and 52 and 53 are rotatably connected to each other by connecting shafts 92 and 93, respectively. With this mechanism, the treads 10, 20, 30,... Are kept parallel to each other, and the treads are kept horizontal during the entire travel by restraining the treads horizontally in a horizontal traveling section. Is kept in.

Guide rollers 6 1, 6 2,... Are provided on the lower extension portions of the refraction center axes 5 10, 5 2,... Of the lower links 5 1, 5 2,. Are guided by the guide grooves 60a and 6Ob to guide the traveling of the steps 1, 2, 3,. As shown in FIG. 1, the outer guide groove member 60b has an arcuate shape in the turning section, and the inner guide groove member 60b is provided in the turning section and in the vicinity thereof. Absent . In order to simplify the structure, as shown in Fig. 2, the center lines of the rollers 9 la and 9 lb, the axes of the rollers 92 a and 92 b,. It is desirable that the rotation center axes X 1, X 2,... Coincide with each other. However, in order to secure the bearing, the width of the link support bearing is increased, and the link rotation axis (for example, X 2) Reinforcement links 2 a and 2 b are provided to connect the shaft of the roller 92 a on the upper roller and the adjacent roller support shafts 5 10 and 5 20. The step platform drive mechanism is not particularly limited, but as shown in FIG. 1, guide rollers 61 are driven teeth, and a pair of rollers 7 provided on the lower gear 7 are used as the steps side teeth. Drive the lower part of the platform with a and 7b sandwiched between each tread surface

(E.g., 10) Pins 71a and 71b are set vertically so that they are equally pitched with the pin of the adjacent step at the turning section, and the upper gear 71 is used to move the top of the step. It is better to drive. A guide roller 61 provided on a lower extension of the refraction center axis 5 10 of the link 51 and a guide roller 62 provided below the refraction center axis 52 of the link 52 are formed on the guide surface 6. 0a and 60b, and the operation of the platform 2 is controlled by the rail 8a on which the roller 92a rides and the rail 8b on which the roller 92b rides. Stabilize . In order to prevent the platform from rising, at least the rear roller rail 8b shall be grooved. Lower gear 7 and upper gear 7

1 and are combined by a vertical shaft 70 to be integrated, and are driven via a motor 11, a speed reducer 12, a bevel gear 13-14, a vertical shaft 140, a small gear 15 and a large gear 16. To

As another example shown in Japanese Patent Application Laid-Open No. 3-95095, a tread surface In order to maintain the horizontal position of the steps, instead of the upper link, as shown in FIGS. 4 to 6, the horizontal maintaining rollers 91h, 91k; 92h, 92 … is provided as a pair, and when it is structured to be guided by the horizontal maintenance guide surfaces 8h and 8k, a mechanism for guiding the refraction centers of the links 51, 52, 53, ... Is the same as when a parallel link mechanism is used, except that the horizontal maintenance guide surfaces 8h and 8k need to be provided over the entire circumference, as shown in Fig. 4 in the turning section. Although the shape of the line is arcuate, the height of the route is reversed between the forward and return routes in the inclined traveling section. For both round trips, the guide surface (rail) that supports the far side of the platform should be grooved.

(Π) Reciprocating circulation type wide escalator

As in the previous example, the inner coupling mechanism may be a parallel mechanism as disclosed in Japanese Patent Application Laid-Open Nos. Hei 3-95095 and Hei 3-106709, filed by the present inventor. The link mechanism will be used to guide the rollers provided below the intermediate link shaft of the lower link through the guideway. In order to further improve the stability of the stepping platform, especially in the turning section, as shown in Fig. 7, the lower center (center U2) of the stepping platform 2 at the lower side (center U2) is connected with a universal joint. The adjusted links 4 2a and 4 2b are set, and the adjusted link 4 2b and the adjusted link 4 3a of the step 3 are adjusted with the shaft 4 2 3 0 of the roller 4 2 3. Combine freely. The adjustment guide rollers 4 1 2, 4 2 3, 4 3 4,... Are guided by the adjustment guide grooves 40 a, 40 b, and a theoretically accurate opening of the platform can be secured in the turning section. Sea urchin Determine the shapes of the alignment guide grooves 40a and 40b.

As a type of the supporting roller, as shown in Fig. 7 as a front view of the horizontal traveling section, a roller 92a is provided at an inner central portion, and a horizontal maintaining roller 92h (a rail) is provided at an outer side. 8 h) and 92 k (grooved rail 8 k) and a horizontal support roller 92 h (rail 8) as shown in FIGS. 8 and 9. h), 92 k (groove rail 8 k) and inside horizontal maintenance rollers 92 h '(rail 8 h'), 92 k '(groove rail 8 k') And the four-point support method is suitable.

There are various types of self-joining type coupling mechanisms for adjusting links provided in the lower center near the outside of the step platform. FIGS. 7 and 8 show an example thereof. A bracket 22 attached to the platform 2 hangs down around the horizontal axis X 2, and supports the joint medium 23, which is self-rotating and restrained from moving left and right. One end of an adjustable link 42b that is rotatable around that axis is supported on a shaft 24 that is perpendicular to the center axis 23 of 3 (coincident with X2). A spherical bearing 4 2 1 supporting the spherical surface 4 2 0 centering on the center U 2 of the coupling medium 23 is provided on the coupling medium 23, and one end of the adjustment link 4 2 a is provided by the spherical bearing 4 2 1. Support. The adjustment rings 4 2b and 4 3a are rotatably connected by the shaft 4 2 30 of the adjustment guide roller 4 2 3, and the adjustment links 4 2b and 4 3a at the turning part. If the angle 0 23 formed between the center and the center U 2 and U 3 increases, the angle formed between the center line X 2 of the step 2 and the center line X 3 of the step 3 at the drive center O d Φ23 expands and the platform is correct Make sure to move to the turning position. The adjustment guide grooves 40a and 40b are geometrically precisely determined and are NC-processed.

(Π) Moving sidewalk

In this case, since there is no kick-up portion, the structure of the step stool is simplified, and the rest is the same as the escalator. Since moving walkways are generally used over long distances, it is an advantage of the present invention that the platform can be used reciprocally.

(IV) Moving slope

In order to keep the gap of the tread surface within the allowable limit in the transitional running section and to be able to bend in the turning section under the floor, the connecting mechanism of the step platform becomes a problem. As shown in FIGS. 10 and 11, the steps 1 s, 2 s are horizontal axes 9 sl, 9 s2 having an axis directly below the extension of the horizontal center axis X sl, X s2 on the tread surface. It is supported by inner wheels 9 sla (riding on the inner rail 8 sa) and outer wheels 9 slb (riding on the outer rail 8 sb) attached to the vehicle. The universal joint 5 sl2 near the junction 9 sl2 of the tread surfaces I s and 2 s (it is possible to bend around the vertical axis 6 sl2v in the turning part and the horizontal axis 6 sl2h in the transition part) Provided outside the cart guard panel 100. A guide roller 6 sl20 is provided on the lower extension of the vertical axis 6 sl2v, and is guided around the entire circumference by a guide groove 6 sl. This mechanism is similar to the escalator. Mount the auxiliary wheels 6 s2c at both ends of the horizontal axis 6 sl2h on the auxiliary rail 8 sc. To prevent the rider from slipping on the slope, the friction angle of the tread should be sufficiently larger than the slope inclination angle, and the comb-shaped groove at the leveling terminal should be Provided above the scart guard panel Provide a handrail. It is advisable to attach a hard rubber molding with high friction to the tread surface. 6s Q indicates a guide backlash removal mechanism using two coaxial rollers, one roller that rotates freely on one vertical wall and the other roller on the opposite vertical wall. Press. This mechanism is described in (I),

It can also be applied to the escalator of (ii). At the lower part of the center of the stepping platform, the front bracket 9 slu, which is rotatable around the horizontal axis 9 sl0, and the right angle with the horizontal axis 9 sl0, in order to make it possible to turn while transmitting the stepping platform at the turning section. The revolving half link 9 slp is rotatably mounted on the 9 slm pin that forms the right angle with the horizontal axis 9 s 20 on the rear bracket 9 s 2 v on the step 2 s side. At 9 s2n, attach the refracting half link 9 slq to the rotating entity. The refraction half links 9 slp and 9 slq are rotatably connected by a refraction axis 9 sl2, and the refraction axis guide rollers 6 sl2 are guided by refraction guide grooves 6 s0 〃. The refraction angle 0 12 increases in the turning section, and the step 9 sl and 9 s 2 are connected to each other and turned while maintaining the posture in the radial direction. Auxiliary wheels 6 sld and auxiliary rails 8 sd will be provided to assist the outer load capacity.

According to the present invention, it is possible to stabilize and assure operation which is a problem of a reciprocating integrated escalator, a moving sidewalk, and a moving slope. Energy savings due to the balance of the weight of the equipment, resource savings due to the absence of unnecessary return parts as in the conventional type, and furthermore, when installing using the space of the existing stairs , Short-term, low cost due to no beam required.

Claims

Range of request

1. A connecting and conveying device having a plurality of steps that are connected so that all the steps are horizontal on the outward path and the returning path,

The adjacent steps of the plurality of steps are sequentially connected in parallel.

At least one row of links,

Each of the link rows can be bent at the center around a refraction axis perpendicular to the traveling direction in a vertical plane parallel to the traveling direction in each of the straight traveling sections, and is perpendicular to the traveling direction. A plurality of links that are rotatably connected to each other around a connection shaft that is perpendicular to the surface,

A guide roller rotatably attached to the refraction shaft provided at the center of each link of the link row located at the lowermost position of the link row;

A guide groove for guiding the guide rollers in parallel with the traveling direction so that the stepping platform does not interfere with each other;

A guide mechanism for a connecting and conveying device, comprising: a rotary drive mechanism that drives the guide roller in an arc-shaped turning section.

2. The guide mechanism for a connecting and conveying device according to claim 1, further comprising a reinforcing link for connecting an extension axis of the connection shaft and a refraction axis adjacent to the refraction axis.

3. A pair of adjustment links connected to each other by a self-contained joint mechanism provided at a lower portion on the outer side of each step platform, and an adjacent adjustment link connected to a universal joint of an adjacent step platform. And a connecting shaft for rotatably connecting the An adjusting guide roller rotatably mounted on the connecting shaft; and

In the turning traveling section, an adjustment guide having a shape so that the interval between the outer peripheral portions of adjacent stepping steps is adjusted so that the lateral center line of the stepping step is directed to the turning center, the inner groove of the opening step. The guide mechanism of the connecting and conveying device according to claim 1 or 2, further comprising:

4. The rotary drive mechanism according to claim 1, wherein the rotation drive mechanism includes a gear that drives the guide roller as a driven tooth, and the gear includes a drive roller that engages with the guide roller. The guide mechanism of the connecting transfer device described in the above.