WO2010137108A1

WO2010137108A1 - Conveying system in which platform car is held in horizontal position

Info

Publication number: WO2010137108A1
Application number: PCT/JP2009/059545
Authority: WO
Inventors: 憲一郎鶴森
Original assignee: 株式会社Ｓ＆Ｓエンジニアリング
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-12-02
Also published as: JPWO2010137108A1

Abstract

A conveying system for a self-propelled platform car (10). The self-propelled platform car (10) is provided with pinion gears (17) meshing with rack teeth (25a) formed on the entire regions of rack rails (25) composed of horizontal sections at the upper and lower ends of the rack rails (25) and of a vertical section located between the upper and lower ends, and the self-propelled platform car is also provided with guided wheels (18a, 18b, 19a, 19b) rolling while being guided by guide rails mounted parallel to the rack rails. The rack rails are provided with the horizontal sections, the vertical section, and curved segments between the vertical section and the horizontal sections. The guide rails are composed of pairs of sets of guide rails (21a, 21b; 22a, 22b; 32a, 32b) arranged above and below the rack rails of the upper horizontal section, in front of and behind the rack rails of the vertical section, above and below the rack rails of the lower horizontal section, and in front of and behind the rack rails of the curved segments between the vertical section and the horizontal sections. Gaps (36) for allowing preceding guided wheels (18a) to pass therethrough are formed between the vertical section and a curved segment, and gaps (35) for allowing following guided wheels (19b) to pass therethough are formed between a horizontal section and the curved segment.

Description

Conveying system that holds the cart in a horizontal position

The present invention relates to a transport system, and more specifically, a transport body composed of a container or a carriage along a plurality of floors of a building such as a building, horizontally on a floor or a ceiling, and along a rail laid vertically on a wall or the like. Transport that allows the vehicle to always travel in a horizontal position, and allows a transported object such as a document or a part to be lowered or mounted on the transport body in a constantly horizontal position at a station arranged along the rail. About the system.

This type of transport system is described in International Publication (WO2008 / 012989) filed by the applicant of the present invention. The transportation system disclosed in the above publication includes a rail laid horizontally and vertically inside a building, a rack laid along the rail, a traveling wheel provided on a carriage traveling on the rail, and a rack. And a pinion drive unit. The rail is parallel to and spaced apart from the pinion rail having a rack that meshes with the pinion in a curve section that changes direction from horizontal to vertical or from vertical to horizontal and a subsequent vertical section. And a running wheel rail. Further, the carriage includes a pinion that meshes with the pinion rail and a traveling wheel supported by the traveling wheel rail on the left and right side surfaces, and the pinion rail and the traveling wheel rail are connected to the curve section and the curve. This cart is characterized in that it can move in a horizontal position in a vertical section following the section.

The first example of the configuration of the carriage disclosed in the publication is provided with a pinion coaxially at the same phase position of the intermediate portion on both the left and right side surfaces, and sandwiches the pinion in the traveling direction of the carriage before and after, In addition, the front and rear traveling wheels and the pinion are provided in a curve section and a vertical section following this section, which have a pair of front and rear traveling wheels arranged so that the rotation axis of the pinion is sandwiched between the upper and lower sides. Are supported by the respective rails, so that the carriage can always be kept in a horizontal posture and traveled.

Similarly, as a cart of the second example disclosed in the above-mentioned publication, a pinion is provided on the same phase coaxial in the middle part on both the left and right side surfaces, and before and after making a pair sandwiching the pinion in the traveling direction of the cart Horizontal traveling wheels and upper and lower vertical traveling wheels that form a pair sandwiching the rotation axis of the pinion between the upper and lower sides. The rail includes a curve rail having a rack that meshes with a pinion and a traveling surface of a horizontal traveling wheel in a curved section that changes direction from horizontal to vertical or from vertical to horizontal, and in a vertical section that follows the curved section. , Equipped with a vertical rail with a rack that meshes with the pinion and a running surface of the vertical traveling wheel, and in the curved section, the horizontal traveling wheel and the pinion are supported by the curved rail, and in the vertical section that follows the curved section, the vertical section The part traveling wheel and the pinion are supported by a vertical rail, and the carriage is always configured to travel in a horizontal posture.

Further, the cart of the third example disclosed in the above publication is provided with a pinion on the same phase coaxial in the middle portion on both the left and right sides, a horizontal traveling wheel provided at the bottom of the cart, and rotation of the pinion The upper and lower vertical running wheels are provided so as to form a pair with the shaft between the upper and lower sides. In addition, the rail includes a curve rail having a running surface that restrains and guides the car black and the vertical running wheels that mesh with the pinion in a curve section that changes direction from horizontal to vertical or from vertical to horizontal. A short vertical section following the curve section includes a short rack that meshes with the pinion and a short vertical rail with a traveling surface of the vertical section running wheel. In the curve section, the pinion is supported by the car black and the horizontal section The running wheel is supported by the curved rail, and in the short vertical section following the curved section, the pinion and the vertical running wheel are supported by the vertical rail containing the short rack so that the carriage can always run in a horizontal posture. Yes.

The above-mentioned transportation system previously proposed by the applicant of the present invention can maintain the posture of the container loaded on the carriage in a horizontal posture integrally with the carriage without changing the gyroscopic means, and can change the orientation of the rail. This is advantageous in that the entire curvature of the conveyance system can be constructed in a compact manner by reducing the curve curvature in the section.

PCT Application International Publication Number WO 2008/012989

The present invention further simplifies the structure of the transport system that allows the carriage previously proposed by the applicant to travel in a horizontal position at all times, thereby making it easier to install the transport system and further operating ( It is an object of the present invention to provide an improved transport system capable of maintaining or holding a horizontal posture at all times with improved reliability of traveling operation).

The structure of the transport system of the present invention, which has been made for the purpose of solving the above-mentioned problems, includes a rack rail having horizontal portions at the upper and lower end portions, a middle portion thereof being formed as a vertical portion, and rack teeth in the entire region, A guide rail arranged in parallel with the rack rail, a lower horizontal rail connected to the horizontal portion on the lower end side of the rack rail and the guide rail, and an upper horizontal rail connected to a horizontal portion on the upper end side of the rack rail and the guide rail. A self-propelled cart transport system comprising a pinion gear meshing with the rack teeth and a guide wheel that rolls while being guided by a guide rail. And four guide wheels arranged at the vertices of the quadrangle, and the rack rail has a curved section between a horizontal part, a vertical part, and both parts. The guide rails are arranged so as to be positioned on the upper, lower and front and rear surfaces with respect to the rack rail in the upper and lower horizontal and vertical portions of the rack rail and the curved section between the horizontal and vertical portions. It is formed by a pair of guide rails, and there is a gap for the preceding guide wheel to pass between the vertical part and the curve section in the guide rail, and the preceding traveling wheel between the horizontal part and the curve section. On the other hand, gaps for passing the following guide wheels located on the diagonal line are formed.

In the present invention, the carriage can include a traveling wheel and a driving wheel for rolling on the horizontal rail, and the driving wheel can be configured to be forcibly rotated by the driving mechanism of the carriage.

In the present invention, the upper and lower horizontal rails may include guides parallel to the rails, and the carriage may include auxiliary guide wheels that roll along the guides while sandwiching the guides.

Further, in the present invention, the guide rail arranged on the near side with respect to the rack rail includes a lower horizontal guide rail, a vertical guide rail, an upper curve section guide rail, and an upper horizontal guide rail in the rack rail. Become. And there are gaps for the guide wheels of the carriage to pass between the guide rails of the vertical section and the upper curve section, and between the guide rail of the upper curve section and the guide rail of the upper horizontal section. Use the deployed configuration.

On the other hand, the guide rails arranged on the rear side with respect to the rack rail are composed of a guide rail in the lower horizontal portion, a guide rail in the lower curve section, a guide rail in the vertical portion, and a guide rail in the upper horizontal portion. A gap for passing the guide wheel of the carriage is arranged between the guide rail in the lower horizontal section and the guide rail in the lower curve section, and between the guide rail in the lower curve section and the guide rail in the vertical section. Can be configured.

In the present invention, the rack rail and the guide rail are cut at least in the vertical section before entering the lower curve section, and another rack rail and the guide rail are connected straight to the vertical section. The rack rail and the guide rail that are arranged as a rail portion and a vertical guide rail portion, and the other vertical rack rail portion and the vertical guide rail portion that are cut are selectively used as the rack rail of the cut portion. It is good also as a structure which enabled it to move between a guide rail.

The transport system of the present invention includes a rack rail having a horizontal portion at the upper and lower ends, a middle portion formed at a vertical portion, and rack teeth in the entire area, a guide rail arranged in parallel to the rack rail, and the rack A lower horizontal rail connected to the horizontal portion on the lower end side of the rail and the guide rail, an upper horizontal rail connected to a horizontal portion on the upper end side of the rack rail and the guide rail, and a pinion gear and a guide rail meshing with the rack teeth. In a self-propelled cart transport system having guide wheels that are guided and rolled, the cart has pinion gears at the intersections of diagonal lines of a virtual upright quadrangle on the left and right sides of the cart, and is arranged at the apex of the quadrilateral. The rack rail includes a curved section between a horizontal portion, a vertical portion, and both portions, and the guide rail includes upper and lower portions of the rack rail. A flat portion and a vertical portion, and a pair of guide rails arranged so as to be positioned on the upper, lower surface and front and rear surfaces with respect to the rack rail in the curved section between the horizontal portion and the vertical portion, and A gap for allowing a preceding guide wheel to pass between the vertical portion and the curve section of the guide rail, and a subsequent guide located diagonally with respect to the preceding traveling wheel between the horizontal portion and the curve section. Since the gaps for passing the wheels are formed, when the carriage moves vertically from horizontal movement, the pinion gear meshes with the rack teeth to raise and lower the carriage, and at the same time, the guide wheels move in the horizontal and vertical sections of the guide rail. While rolling on the outer surface, the guide wheel that precedes the curve section and the following guide wheel that is positioned diagonally to the preceding guide wheel pass through the gap, and the carriage moves from horizontal movement to vertical movement. It is possible to change the. For this reason, it is possible to simplify the overall structure of the transport system, more specifically, the structure of the direction changing unit that can smoothly and accurately perform the direction changing operation, which makes installation work easier. It is possible to provide a transport system with high traveling reliability.

The perspective view seen from the front side which shows an example of implementation of this invention conveyance system. The side view of the conveyance system of FIG. The front view of the conveyance system of FIG. FIG. 4 is a side view showing a state in which the transport body in the transport system shown in FIGS. 1 to 3 is changed from horizontal travel to vertical travel. The side view which shows the state which a conveyance body transfers to a horizontal driving | running | working from a vertical driving | running | working. FIG. 4 is a side view showing a state in which the transport body in the transport system shown in FIGS. 1 to 3 is changed from horizontal travel to vertical travel. FIG. 7 is a side view showing a configuration example of another conveyance path based on the conveyance system shown in FIGS.

1 to 7 show an example of implementation of the transport system of the present invention.

As shown in FIGS. 1 to 3, the transport system according to the present invention includes a carriage 10 as a transport body, a rail provided with rack teeth laid on a vertical portion inside the building and a portion where the vertical portion changes direction to a horizontal portion. 20 and upper and lower

horizontal rails

41, 42 connected to the rail 20.

The carriage 10 includes a housing 11 that forms a container. The casing 11 includes a lid 12 that can be opened at an upper portion thereof, and a transported object can be stored inside the casing through an opening formed by opening the lid 12. The lower part of the housing 11 is formed on the chassis.

Traveling

wheels

13a, 13b and driving wheels 16 are disposed on the lower surface of the carriage 10, and pinion gears 17 and four

guide wheels

18a, 18b, 19a, 19b are disposed on the left and right side surfaces in the traveling direction.

The traveling

wheels

13a and 13b are assembled as a pair of left and right traveling wheels before and after the lower surface of the carriage 10. Located in the middle of the traveling

wheels

13a and 13b, the driving wheel 16 is disposed on the lower surface of the carriage 10 and is connected to a driving mechanism incorporated inside the carriage. Two auxiliary guide wheels 14 for linear traveling acting on the upper and lower

horizontal rails

41 and 42 are arranged on the axis perpendicular to the axis of the traveling

wheels

13a and 13b on the front and rear of the lower surface of the carriage 10, that is, the rotation axis. The axles are held on the chassis vertically and spaced from each other. The distance between the auxiliary guide wheels 14 corresponds to the cross-sectional width of the guide 41a of the upper and lower

horizontal rails

41 and 42.

The pinion gear 17 is disposed at a substantially intermediate position near the lower side of the left and right side surfaces of the carriage 10 and is configured to be rotated by a drive mechanism inside the carriage. Further, the four

guide wheels

18a, 18b, 19a, 19b are arranged so as to freely rotate at the corners (vertices) of a virtual upright rectangle whose diagonal line is the position of the pinion gear 17. Although only the right side surface of the four guide wheels 18a to 19b has been described, the pinion gear 17 and the four

guide wheels

18a, 18b, 19a, and 19b are incorporated in the same manner on the left side as shown in FIG. Yes.

A rail 20 comprising a rack rail 25 having rack teeth and

guide rails

21a, 21b to 32a, 32b, 33 and the like delivered along the rail 25 is the same as that shown in FIGS. The laying aspect in the case where the conveyed product is moved from the horizontal plane to the horizontal plane (floor or the like) of the upper floor using the carriage 10 in a horizontal posture is schematically shown.

That is, as shown in FIGS. 1 to 3, a pair of rails 20 including the rack rail 25 and the guide rails 21a are arranged in parallel on the left and right sides in the traveling direction of the carriage 10. The rail members constituting the rail 20 are illustrated as floating in the air in FIGS. 1 to 7, but are actually fixedly supported on a floor, a wall, or the like by an appropriate member or mount. Is.

The rack rail 25 that constitutes the rail 20 includes rack teeth 25 a that mesh with the pinion gear 17 of the carriage 10. The rack rail 25 includes upper and lower horizontal parts connected to two upper and lower ends arranged in parallel, and a vertical part arranged between both horizontal parts via a curve section, for example, a building It is laid along a vertical wall. Each guide rail disposed along the rack rail 25 will be described below.

The guide rail 21a located forward (front side) with respect to the rack rail 25 in the vertical portion is located inside the two rack rails 25 (see FIG. 3) and is arranged in parallel to the rack rail 25. In the rack rail 25, the upper and lower horizontal portions have the

same guide rails

22a and 22b as 32a and 32b, and the vertical portion of the rack rail 25 has the guide rail 21b in the rear (rear side).

Guide rails

23 and 33 are arranged in the lower curve sections, respectively. The guide rails 21b, the guide rails 23, and the guide rails 32b described above are positioned on a series of travel routes in the guide rail 21b that is located behind the rack rail 25.

The lower

horizontal guide rails

22a and 22b are arranged inside the horizontal portion of the rack rail 25 and arranged in parallel with the horizontal portion in between. The upper side surfaces of the

guide rails

22a and 22b correspond to the widths of the left and

right guide wheels

18a and 18b or the

guide wheels

19b and 19b viewed from the traveling direction (see FIG. 3).

The left and right guide rails 23 in the lower curve section are positioned between the left and right guide rails 21b disposed on the back side of the vertical portion of the rack rail 25 and the guide rails 22b below the horizontal portion of the rack rail 25. It is arranged in the left and right curve sections. The left and right guide rails 23 in the lower curved section are formed in a substantially L-shape that is reversed left and right, with one end directed to the lower horizontal guide rail 22b and the other end directed to the vertical guide rail 24b. The outer surface is arranged so as to be continuous with the outer surface of the lower

horizontal guide rails

22b, 22b. The curve of the outer surface of the rail 23 shares the center of curvature with the curve section of the rack rail 25, but has a large curvature radius.

The left and right outer surfaces of the

guide rails

21a and 21b in the vertical part of the rack rail 25 correspond to the width of the

guide wheels

18a and 18b or the

guide wheels

19a and 19b of the carriage 10 in the traveling direction (see FIG. 3).

In the rack rail 25, the guide rail 33 in the upper curve section is arranged so as to be continuous with the upper end portions of the

vertical guide rails

21a and 21a. The guide rail 33 in the upper curve section is formed in an inverted substantially L shape, and is arranged with the lower end side directed to the vertical guide rail 21a and the front end portion directed to the upper horizontal guide rail 32a. The outer surface is arranged so as to be continuous with the upper surfaces of the vertical section guide rail 21a and the upper horizontal guide rail 32a. The outer surface of the guide rail 32 shares the center with the upper curve section of the rack rail 25, but has a large curvature radius.

The guide rails 32a and 32b in the upper horizontal portion of the rack rail 25 are disposed, for example, at a location on the upper floor. The width of the pair of left and

right guide rails

32a and 32b in the upper horizontal part corresponds to the width (left and right width in the traveling direction) of the carriage 10 viewed from the front of the

guide wheels

18a and 18b or the

guide wheels

19a and 19b. Yes.

In the

guide rails

21a and 21b in the vertical portion of the rack rail 25, an upper right guide guide wheel 18a among the guide wheels of the carriage 10 is provided between the guide rail 21b in the vertical portion and the guide rail 23 in the lower curve section. Between the upper horizontal guide rail 32b and the upper curved guide rail 33, there is a gap 38 through which the following guide wheel 19b passes diagonally with the guide wheel 18a. Is formed.

In other words, the gap 35 provided between the lower horizontal guide rail 22b and the lower curved guide rail 23 allows the following guide wheel 19b at the lower left of the carriage 10 to pass through. In the gap 36 between the guide rail 23 in the lower curve section and the guide rail 21b in the vertical part, the upper right guide wheel 18a can pass therethrough. The gap 38 between the guide rail 33 in the upper curve section and the guide rail 32a in the upper horizontal section passes through the guide wheel 18a on the upper right, leading to the guide rail 33 in the upper curve section and the vertical section. A gap 37 between the guide rail 21a and the guide rail 21a is formed so that the following lower left guide wheel 19b can pass through.

The lower horizontal rail 41 is laid on the floor of the building and the horizontal part close to the floor. The lower horizontal rail 41 is provided so as to slightly overlap with the lower

horizontal guide rails

22a and 22b in the rack rail 25, and the left end side of the horizontal rail 41 (not shown) is a station on this floor. It extends toward. On the other hand, an upper horizontal rail 42 on which the driving wheels 16 and the traveling

wheels

13a and 13b roll is laid on the upper floor. The upper horizontal rail 42 is provided so as to slightly overlap with the upper

horizontal guide rails

32a and 32b in the rack rail 25, and the right end side of the rail 42, which is not shown, is a station on this floor. It extends toward. These upper and lower

horizontal rails

41 and 42 are devised so that guides 41a and 42a on which the auxiliary guide wheels 14 of the carriage 10 roll are provided in the center in the longitudinal direction, and the carriage 10 can be moved straight. Yes.

The carriage 10 is self-propelled on the lower horizontal rail 41 from the station on the lower floor by the driving wheels 16 and the traveling

wheels

13a and 13b, and is guided to the guide 41a of the lower horizontal rail 41 by the auxiliary guide wheel 14 for linear traveling. Along the end of the lower horizontal rail 41.

When the vicinity of the end of the horizontal rail 41 is reached, the

guide wheels

18a and 18b first come into contact with the upper side surfaces of the

guide rails

22a and 22b in the lower horizontal portion, and when the vehicle travels a little, the pinion gear 17 meshes with the rack teeth 25a. As shown in FIG. 4, the carriage 10 is raised by the pinion gear 17 and the rack teeth 25a, the guide wheel 18a contacts the outer surface of the vertical guide rail 24b, and the guide wheel 18b is the guide rail in the lower curve section. The vehicle is brought into contact with the outer surface of the vehicle 23 and is bent at an angle of 90 ° from the horizontal while keeping the cart 10 in a horizontal posture.

When the carriage 10 enters the lower curve section of the rack rail 25 in this way, the rear (left side in FIG. 4)

guide wheels

19a and 19b come into contact with the outer surface of the vertical guide rail 21a and freely rotate, The

guide wheels

18a and 18b come into contact with the outer surface of the vertical section guide rail 24b and freely rotate to raise the carriage 10 straight (vertically) and move it to the upper curve section as shown in FIG.

When the carriage 10 is in the upper curve section, the guide wheel 19a of the carriage 10 comes into contact with the outer surface of the guide rail 33 in the upper curve section, and the carriage 10 is bent at an angle of 90 ° from the vertical direction to the horizontal direction. After traveling, the guide wheel 19a contacts the outer surface of the upper horizontal guide rail 32a, and the guide wheel 19b passes through the gap 37 and contacts the outer surface of the upper horizontal guide rail 32b. The guide wheel 18a rolls on the upper side surface of the upper horizontal section guide rail 32a through the gap 38, and the guide wheel 18b rolls on the upper side surface of the upper horizontal section guide rail 32b.

Almost at the same time when the

guide wheels

18a, 18b, 19a, 19b of the carriage 10 reach the end of the

guide rails

32a, 32b in the upper horizontal portion, the pinion gear 17 is disengaged from the rack teeth 25a, and at the same time, the traveling

wheels

13a, 13b of the carriage 10 are The carriage 10 contacts the upper horizontal rail 42 and the drive wheel 16 of the carriage 10 is rotated by the drive mechanism, so that the carriage 10 moves horizontally. As a result, the carriage 10 horizontally moves from the lower floor to the upper floor via the rack rail 25, reaches the station on that floor, and stops moving.

The above description has explained the transport of the carriage 10 from the lower floor to the upper floor. However, when the transported object is directly moved vertically from the location on the lower floor to the location on the upper floor, for example, from the location on the first floor. In the case where the conveyed product is directly moved to a place on the third floor, the rack rail 25 is configured as shown in FIG. 7, for example.

This cuts the vicinity of the guide rail 23 in the lower curve section of the

guide rails

21a and 21b in the vertical portion of the rack rail 25, and selectively uses the same as the traveling path switching moving body 43 shown by the phantom line in FIG. This can be done by moving between the rack rails 25, 125 and the

vertical guide rails

21a, 21b, 121a, 121b.

That is, in FIG. 7, the lower rack rail 125 is connected to the lower end of the vertical portion of the rack rail 25, and the lower vertical

guide rail portions

121a and 121b are connected to the upper

vertical guide rails

21a and 21b. Is arranged. The traveling path switching moving body 43 includes a lower curve section guide rail 23, lower end portions 21a 'and 21b' of the

vertical guide rails

21a and 21b, and a part 25 'of the rack rail 25. One switching moving body 44 includes

vertical guide rails

221 a and 221 b and a rack gear 225. The two

switching moving bodies

43 and 44 are selectively moved between the upper and lower rack rails 25 and 125 and the upper and lower

vertical guide rails

21a, 21b, 121a and 121b. This horizontal movement can be performed, for example, by placing the

switching moving bodies

43 and 44 on a rail and moving them by a hydraulic cylinder or the like.

On the other hand, when the carriage 10 moves from the second floor station to the first floor station, the traveling path switching movable body 43 is moved between the

vertical guide rails

21a, 21b, 121a, 121b, and the

vertical guide rails

21a, 21b are moved. When the switching body 43 is retracted and the moving body 44 is moved between the

vertical guide rails

21a, 21b, 121a, 121b, the carriage 10 can be lowered.

Note that such movement of the carriage 10 causes the constituent members mounted on the traveling path switching moving body 43 to be reversed left and right and up and down in FIG. 7, that is, the guide rail 33 in the upper curve section and the guidance of the vertical portion. The third traveling path switching body incorporating the lower ends 21a 'and 21b' of the

rails

21a and 21b and a part 25 'of the rack rail 25 is switched between the

guide rails

21a, 21b, 121a and 121b in the vertical portion. As an example, it is possible to move the carriage 10 directly from the second floor to the first floor without causing the carriage to run horizontally from the second floor to the first floor.

The transport system of the present invention always keeps documents, postal items, stationery, etc. in offices, medical records in hospitals, parts and products in factories, and loads such as specimens and reagents. This is extremely useful because it can be automatically conveyed to a destination by a cart that travels in a posture.

DESCRIPTION OF SYMBOLS 10 Bogie 11 Case 12

Lido

13a, 13b Traveling wheel 14 Auxiliary guide wheel 16 for linear driving 16 Drive wheel 17

Pinion gear

18a,

18b Guide wheel

19a, 19b Guide wheel 20

Rail

21a, 21b Vertical

part guide rail

22b, 22b Lower part Guide rails in the horizontal section 23 Guide rails in the

lower curve section

25, 125 Rack rails

25a Rack teeth

32a, 32b Guide rails in the upper horizontal section 33 Guide rails in the upper curve section 35-38 Gap 41 Lower horizontal rail 42 Upper

horizontal rail

41a, 42a guide

Claims

A rack rail having a rack tooth with a horizontal portion at the upper and lower ends and a middle portion between them, a guide rail arranged in parallel to the rack rail, and a lower portion connected to the horizontal portion of the rack rail and the lower end of the guide rail A transport system for a self-propelled carriage comprising a horizontal rail, an upper horizontal rail connected to a horizontal portion at the upper end of the rack rail and the guide rail, a pinion gear meshing with the rack teeth, and a guide wheel rolling on the guide rail In
The carriage has pinion gears on the left and right side surfaces thereof at the intersection of diagonal lines of a virtual upright rectangle and four guide wheels arranged horizontally and vertically at the apex of the rectangle,
The rack rail includes a curve section between a horizontal part, a vertical part, and both parts,
The guide rails are arranged so as to be positioned on the upper, lower and front and rear surfaces with respect to the rack rail in the upper and lower horizontal and vertical portions of the rack rail and the curved section between the horizontal and vertical portions. It is formed by a pair of guide rails, and there is a gap for the preceding guide wheel to pass between the vertical part and the curve section in the guide rail, and the preceding traveling wheel between the horizontal part and the curve section. A conveying system for holding a carriage in a horizontal posture, wherein gaps are formed for the passage of subsequent guide wheels positioned diagonally to each other.
The transport system according to claim 1, wherein the carriage includes a traveling wheel and a driving wheel for rolling the upper and lower horizontal rails, and the driving wheel is forcibly rotated by a driving mechanism of the carriage.
The transport system according to claim 2, wherein the upper and lower horizontal rails are provided with guides parallel to the rails, and the carriage is provided with auxiliary guide wheels that roll while sandwiching the guides.
The guide rail arranged on the front side of the rack rail is composed of a lower horizontal guide rail, a vertical guide rail, an upper curve section guide rail, and an upper horizontal guide rail. The transport system according to any one of claims 1 to 3, wherein a gap through which the guide wheel of the carriage passes is arranged between the guide rails in the curve section and between the guide rails in the upper curve section and the guide rails in the upper horizontal section.
The guide rail disposed on the rear side of the rack rail is composed of a guide rail in the lower horizontal portion, a guide rail in the lower curve section, a guide rail in the vertical portion, and a guide rail in the upper horizontal portion, and the guide rail in the lower horizontal portion The conveyance according to any one of claims 1 to 3, wherein a gap through which the guide wheel of the carriage passes is arranged between the guide rail in the lower curve section and between the guide rail in the lower curve section and the guide rail in the vertical portion. system.
The rack rail and the guide rail are cut at least at a vertical portion before entering the lower curve section, and the other rack rail and the guide rail are connected straight to the vertical portion and the vertical rack rail portion and the vertical guide rail portion. The rack rail and the guide rail of the cut curve section and the other vertical rack rail portion and the vertical guide rail portion are selectively moved between the rack rail and the guide rail of the cut portion. The transport system according to any one of claims 1 to 5, wherein the transport system can be used.