JP3145096B2 - Flexible rail - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention mainly relates to various conveyor devices such as a trolley conveyor, a crossbar conveyor, and a pallet conveyor.
The present invention relates to a flexible rail which is useful when used as a conveyor rail in a place where the height can be freely changed in the vertical direction.

(Conventional Technology of Conveyor Rail) As is well known, a trolley conveyor that conveys a relatively small and light-weight work or a medium-sized or heavy-weight work has a lip channel steel having a cross-section or a downward-facing concave shape. Rolling guide of a conveyor chain such as a conveyor chain with side rollers or a universal chain on a conveyor rail (hereinafter simply referred to as a lip groove type rail) such as a C-shaped steel,
Thus, the work is suspended on the hanger supported by the conveyor chain and used for trolley conveyance.

Also, when the weight of the work becomes heavier or larger than in the above-described case, a conveyer rail such as an I-beam or an H-beam (hereinafter, simply referred to as an I-rail). ) Is used, a trolley supporting a guide roller at the upper end is suspended in the left and right rail grooves of the I-shaped rail, the trolley is connected by a conveyor chain, and a load hanger is suspended at the lower end of the trolley. Then, the work is suspended from the load hanger and used for trolley conveyance.

At this time, in this type of trolley conveyor, a straight straight rail, a corner rail bent at an angle of 45 degrees or 90 degrees, or a concave surface whose upper surface is bent at an angle of 45 degrees or 30 degrees. An endless conveyor line is configured by combining various conveyor rails such as rails and conversely, convex rails whose lower surfaces are bent at angles such as 45 degrees and 30 degrees.

(Problem 1 to be Solved by the Invention) However, in the case of such a trolley conveyor, a conveyor rail that rolls and guides a conveyor chain and a trolley,
Since the conveyor rails are fixedly assembled in a stationary state, the height of the conveyor rail cannot be freely changed at the appropriate position.

(Prior Art of Electrocoating Apparatus) On the other hand, as disclosed in Japanese Patent Application Laid-Open No. Sho 62-54097, the present inventor has disclosed a trolley conveyor for intermittently transporting a work supported on a conveyor chain, and an electrocoating apparatus. In a device that combines a processing tank group arranged in accordance with the process sequence and a baking / drying furnace for an electrodeposited workpiece, the processing tank group is installed on one or more lifting tables that are driven up and down. We offer electrodeposition coating equipment.

In this case, the trolley conveyor is configured to be rolled and guided along the fixedly configured conveyor rail and circulate, and the work directly suspended from the work suspended from the conveyor chain at appropriate intervals. By moving the processing tank group installed on the elevating table up and down, pretreatment, electrodeposition and baking and drying of relatively small and light parts can be efficiently performed by a relatively small and compact device.

(Problem 2 to be Solved by the Invention) However, when a relatively large work is to be targeted, the size of each processing tank must be increased accordingly. This results in a significant weight increase.

Also, when pre-treating, electrodepositing, or post-treating a work in an individual processing tank, the larger the work, the larger the up and down strokes of the work need to be taken. In addition, the size of the lifting device for driving the lifting table must be significantly increased, and the driving force thereof must be greatly increased.

As described above, it is difficult to move a processing tank group, which has greatly increased in weight, with a large stroke in the vertical direction with respect to a workpiece suspended on a trolley conveyor (the same applies to a crossbar conveyor). It is not always good to be efficient.

Therefore, the present inventor has set the processing tank group itself in a stationary state in a stationary state, but pre-processes the workpiece in the processing tank group, performs the electrodeposition process, and performs the post-processing. The focus was on making the entire work stopped immediately above and below movable along with the conveyor rail formed directly above.

For this purpose, a conveyor rail (hereinafter, referred to as a moving rail) configured to be able to move up and down directly above a processing tank group and a terminal end of a conveyor rail (hereinafter, referred to as a loading side rail) for carrying a work into the earliest processing tank. ), And between the end of the moving rail and the tip of a conveyor rail (hereinafter, simply referred to as an unloading-side rail) that unloads the electrodeposited workpiece to the baking / drying furnace in the subsequent process. Thus, a need has arisen for a flexible rail structure that can freely change the height with an appropriate stroke in the vertical direction while maintaining the rolling guide function of the conveyor chain and the trolley.

(Means for Solving the Problems) Accordingly, in the present invention, a flexible rail that can be referred to as a freely movable rail that can smoothly respond to a change in the vertical direction of the moving rail at the above-mentioned location has a short length. the rail pieces R ₀ to R _n which formed was so provided is, protrudes to the side connecting plate S ₀ to S _n and fixed from the rail piece R ₀ to R _n to either before or after, the side connecting plates S ₀ and other to S _n-1 of the protruding side and the rail piece R ₁ to R _n and pivoted by the connecting shaft P ₁ to P _n, a flexible rail formed by continuously provided the multiple sets bent freely It was offered.

(Example) Hereinafter, an example of the flexible rail according to the present invention will be described.
This will be described sequentially with reference to the accompanying drawings.

First, in FIGS. 1 to 9 showing a case where an I-type steel (hereinafter, referred to as an I-type rail) is adopted as a conveyor rail in the flexible rail F of the present invention, the I-type rail is shown in FIGS. As shown in the vertical side view of the figure,
Usually, it has a long body structure of an I-shaped cross section, and an upper plate 1 and a lower plate 2 projecting in the left-right width direction are formed at upper and lower ends thereof, and an upper plate 1 is formed at a central portion therebetween. A vertical plate portion 3 for integrally connecting the upper and lower plate portions 2 vertically is formed, and an I-shaped rail having an appropriate rail height and rail width is adopted depending on the size and weight of the work to be trolley-conveyed or chain-conveyed. You.

In Figure 1-Figure 9, R ₀ to R _n is I-shaped cross section of the rail pieces forming the rail length L ₁ of the short length by cutting the type I rail (hereinafter, referred to simply as Type I pieces) a is, the total height 2 about the height H ₁ position of the fifth of H of the I-type pieces R ₀ to R _n, and setting the folding reference line X-X of the flexible rails F.

Numerals 4 and 5 are obtuse (or arcuate) inflection portions that change the inclination gradient θ toward the upper side and the lower side of the bending reference line XX, and are shown in FIG. 1 and FIG. I-shaped piece R _{1 in the} middle
In the case of R _n-1 (excluding the front end and the end), the front inflection portion 4 and the rear inflection portion 5 are formed at the front and rear ends on the bending reference line XX, I-shaped pieces R ₀ , R _n at the tip and end
In the case of, as shown in FIG. 3 and FIG. 4, it is formed on one of the front and rear on the bending reference line XX.

Reference numerals 6 and 7 _denote upper tapered end faces of the I-shaped pieces _{R0 to} Rn. The end faces T on the upper side of the front inflection portion 4 and the rear inflection portion 5 at an inclination angle .theta. It is cut into a letter shape.

The upper tapered end faces 6 and 7 are provided at the intermediate I-shaped pieces R _{1 to} R _n-1 shown in FIGS. 1 and 2 (excluding the tip and the end).
In the case of (1), it is formed symmetrically in the front-rear direction. On the other hand, in the case of the I-shaped piece _{R0 at} the front end, as shown in FIG. when piece R _n, as shown in FIG. 4, it is formed on the front side.

Reference numerals 8 and 9 _denote lower tapered end faces of the I-shaped pieces R _{0 to} R _n , which are inclined obliquely downward at an inclination angle θ of about 4 ° below the front inflection portion 4 and the rear inflection portion 5. It is cut into a T shape.

The lower tapered end surface 8 and 9, I-type pieces R ₁ to R _n-1 of the intermediate portion shown in FIG. 1 and FIG. 2 (except for the tip portion and a distal portion)
In the case of, while it is formed symmetrically on the lower side,
In the case of the I-shaped piece R _{0 at} the distal end, as shown in FIG. 3, it is formed on the rear side, and the I-shaped piece at the distal end is formed.
In the case of R _n, as shown in FIG. 4, it is formed on the front side.

10 is the I-shaped pieces R _{1 to} R _n except for the I-shaped piece R ₀ at the tip end
Through holes formed in the vertical plate portion 3 of the I-piece R ₁
~ R _{n from} the front inflection part 4 along the bending reference line XX,
1 about the distance E ₁ 5 minutes of rail length L1, is formed in the vertical plate portion 3 of the positions entered inward.

S ₀ to S _n is a pair of left and right side connection plate for connecting the back and forth type I piece R ₀ to R _n, I-type pieces R ₀ to R Rail length L ₁ and the plate length of approximately the same _n are formed in L _2, the plate length L ₂ of the 5 minutes of 2 about the distance E, i.e., formed to protrude by inconsistency a length of about twice the distance E ₁ toward the rear side At the same time, the first half is an I-shaped piece R ₁
Front bent portion 4 of the to R _n (the case of type I pieces R ₀ of the distal end portion 2
From below the vertical end surface of) along the folding reference line X-X, on which is inconsistency in the position containing the substantially same distance E to the inside, also natural side connecting plate S ₁ ~S _n-1 securing the upper and lower end portions in the vertical plate portion 3 of the I-type pieces R ₀ to R _n by welding 11,12.

At this time, the side connecting plates S ₀ to S _n between the upper and lower end portions and the I-type pieces R ₀ to R _n upper plate 1 and the upper and lower surfaces of the lower plate portion 2 of the moderate clearance C _1, C ₂ welded at a, except for type I piece R _0, R _n of the tip and distal ends, type I piece R ₁ ~R _n-1 adjacent the intermediate portion so that is moderately crooked.

13, 14 denotes a inflection portion of the side connecting plate S ₀ to S _n, folding reference line X-X of the upper side and toward the lower side inclined slope θ of the obtuse angle to vary (or a circular arc shape) And a side connection plate at an intermediate portion shown in FIG. 1 and FIG.
In the case of S _{1 to} Sn _-1 (excluding the front end and the end), the front inflection portion 13 and the rear inflection portion are provided at both front and rear ends on the bending reference line XX.
To 14 is formed, in the case of the side connecting plate S _0, S _n of the tip and the distal end, as shown in FIG. 3 and FIG. 4, before or after the on folding reference line X-X Formed on either side.

Reference numerals 15 and 16 _denote upper tapered end faces of the side connection plates S _{0 to} Sn, which are cut on the upper side of the front inflection portion 13 and the rear inflection portion 14 obliquely upward at an inclination angle θ of about 4 degrees. And the side connection plate at the intermediate part shown in FIG. 1 and FIG.
S ₁ in the case of to S _n-1 (except for the tip portion and distal portion), compared are longitudinal symmetrically formed on the upper side, the side connecting plates S ₀ of the distal end portion and a distal portion, the case of S _n As shown in FIG. 3 and FIG. 4, it is formed on one of the front and rear on the bending reference line XX.

17 and 18 is a lower tapered end surface in the side connecting plate S ₀ to S _n, the lower side of the front curved portion 13 and the rear curved portion 14, cut at an inclined angle of about 4 degrees obliquely downward θ And the side connection plate at the intermediate part shown in FIG. 1 and FIG.
S ₁ in the case of to S _n-1 (except for the tip portion and distal portion), compared formed longitudinal symmetrically on the lower side, the side connecting plates S ₀ of the distal end portion and a distal portion, the case of S _n As shown in FIG. 3 and FIG. 4, it is formed on one of the front and rear on the bending reference line XX.

19 except for the side connection plates S _n of the distal portion, a side connecting plate S ₀ to S _n-1 through hole formed in, one third as high as h ₁ position of the plate height h that occasion songs reference line X-X is set to, the side connecting plates S ₀ ~S _n-1
Of about one distance E ₂ 5 minutes of the rear curved portion 14 the plate length from L2, are open formed at a position entering inwardly along a folding reference line X-X.

And P ₁ to P _n is a connecting shaft for pivotally rail structure member located around the side connecting plate S ₀ ~S _n-1 of the hole 19 except the side connecting plate S _n of the terminal unit, I Mold piece R ₀ 〜
It is fitted support from the right and left lateral direction through hole 10 of the R _n.

20 is a vertical end surface which is substantially vertically cut the front end portion of the type I pieces R ₀ of the distal end portion, to the vertical end face 20 is butted type I rail K _1, the upper and lower surfaces of the butted end faces The upper plate 21 and the bottom plate 22 are connected and fixed.

23 is a vertical end surface which is substantially vertically cut the rear end portion of the I-type pieces R _n of the end portion, on the vertical end face 23 is butted type I rail K _2, the upper and lower surfaces of the butted end faces The upper plate 21 and the bottom plate 22 are connected and fixed.

24 is a vertical end surface obtained by cutting off substantially vertically the front end portion of the side connecting plate S ₀ of the distal end portion.

Reference numeral 25 denotes a vertical end face obtained by cutting the rear end of the side connection plate _{Sn at} the end substantially vertically.

Therefore, the I-pieces R _{0 to} R _n are connected to the side connection plates S ₀ to R _0.
Rail constituent members to which S _n are fixed are successively abutted one after another in the longitudinal direction, and I-shaped pieces R _{1 to} R _n are inserted between left and right side connection plates S _{0 to} S _n-1 . Above,
Through holes 19 of side connection plates S _{0 to} Sn _-1 and I-shaped pieces R ₁ to
Toward the through hole 10 of the R _n fitted a coupling shaft P ₁ to P _n, the connecting shaft
P ₁ shaft head and side to P _n connection plate S ₀ ~S _n-1 of the hole 19
The flexible rail F according to the present invention is assembled so as to be freely bent as shown in FIG.

The I-type rails K ₁ and K ₂ on the carry-in side and the carry-out side abut against the front and rear ends of the flexible rail F, and the upper plate 21 and the bottom plate 22 are connected and fixed thereon.

6 and 7, T is a trolley,
A chain conveyor, a link chain, or the like is provided so as to be conveyed continuously at an interval in the front and rear, or is self-propelled and provided for conveyance.

27 is a rolling roller which is pivoted to the upper end portion of the trolley T, and hung the workpiece to the lower end of the trolley T, is transported guided to the conveyor rail K ₁ ~K ₃ comprising a flexible rail F of the present invention Rolling.

(Created for) by Thus, by fixing one end portion of the flexible rail F, when the lift moves the other end portion in the vertical direction, the side connecting plate S ₀ of the distal end portion and a distal end with it, S _n with I-type pieces Except for R ₀ and R _n , I-shaped pieces R _{1 to} R _n-1 with side connection plates S _{1 to} S _n-1, which are intermediate rail constituent members, use the connection shafts P _{1 to} P _n as a fulcrum. The I-pieces R ₀ , R ₁ , R ₂ , R _{3 are} gradually bent, and are located near the front end and the rear end of the flexible rail F, for example, as shown in FIG.
_{··· R n-3, R n} -2, R n-1, one of R before and after the portion of _{the n} upper tapered end surface 6 or the lower tapered end surfaces 8 and 9 are appropriately abut, likewise flexible rail Side connection plates S ₀ , S located closer to the front end and rear end of F
_{1, S 2, S 3 ···} S n-3, S n-2, S n-1, one can pick S _n of front and rear of the upper tapered end surfaces 15 and 16 or the lower tapered edge 17, 18 The rails are appropriately bent by being joined together, and at the intermediate portion excluding the positions near the front end and the rear end of the flexible rail F, these rail components are bent back and forth with a suitable inclined gap. Can be

In this way, the upward and downward responsiveness of the flexible rail F of the present invention is ensured.

As shown in FIGS. 6 and 7, a trolley T, which supports a rolling roller 27 at its upper end, is suspended and supported on the flexible rail F, and is used for conveyance guide. In order to smoothly guide the rolling rollers 27, the rail pieces R ₀ located on the front and rear of the flexible rail F are disposed.
The lower side between each other to R _n, it is not preferable that excessive gap is formed.

Therefore, in the case of this embodiment, I-type pieces R ₀ to R Height bent reference line 2 as high as H ₁ position of the lower fifth of the H of the _n X-
Set X, also, I-type pieces R ₀ to R upper tapered end face 6 and a lower tapered end surfaces 8 and 9 in _n, the side connecting plates S ₀ upper tapered end surfaces 15 and 16 in to S _n and the lower tapered face 17 , 18 were formed at approximately the same upper and lower angles of about 4 degrees. Instead, the inclination angles θ of the upper tapered end faces 6, 7, 15, 16 were set to about 4 degrees.
The inclination angle of the lower tapered end faces 8, 9, 17, 18 is set to about 2 degrees, whereby the inclination angle θ of the lower tapered end faces 8, 9, 17, 18 as compared with the upper tapered end faces 6, 7, 15, 16 Or
Further, by combining both the upper and lower inclination angles θ with a small gradient of about 2 degrees, it is possible to cope with smooth rolling of the rolling roller 27.

Further, as described above, the inclination angle θ of the upper tapered end faces 6, 7, 15, 16 and the inclination angle θ of the lower tapered end faces 8, 9, 17, 18
The when relatively small, the folding reference line X-X of type I pieces R ₀ to R _n, and sets the center position bisecting the I-type pieces R ₀ to R _n in the vertical, Side connection plate S ₀
Folding reference line X-X of the to S _n, or may be set to the center position bisecting it up and down.

In the case of the flexible rail F bent as shown in the front view of FIG.
-Type piece R _0, against the type I rail K _1, K ₂ connected and fixed to R _n, bending of the flexible rail F in the case of the Type I rail K _1, K ₂ was down relatively moved in the vertical direction The bending state is illustrated.

In addition, the Figure 9 a front view of the appropriate height position of the front and rear ends, immovably fixed support unloading rail K3 and carry side rail K ₁ type I, the movement of the central portion rail K ₂ Movably in the vertical direction, the flexible rail F of the present invention is connected and fixed between these conveyor rails K _{1 to} K ₃ , and the movable rail K ₂ in the center is vertically moved in the vertical direction. The figure shows a case where, when moved, a pair of flexible rails F is bent in the vertical direction to change the posture to a flexible state.

In the case of (Other Embodiments) The above embodiment, a short length and type I piece R ₀ to R _n formed in is, a case has been described in which a combination of its side connecting plate S ₀ to S _n, The I-shaped piece R _0-
Instead of R _n , an H-shaped steel consisting of an upper plate, a lower plate, and a vertical plate is adopted, or an inverted U-shaped steel plate consisting of an upper plate, left and right side plates, and lower left and right lips. Or adopting a downwardly concave lip groove type rail, or an outer rail of the same U-shaped or downwardly concave lip groove type rail, and a lower U-shaped or downwardly concave lip groove type rail fixed to the ceiling thereof. Adopt a double rail consisting of an inner rail, or upper and lower upper and lower plate parts, one of the left and right side plate parts, and upper and lower lip parts formed on the other of the upper and lower plate parts Or a lip I-type rail in which the C-shaped lip groove-type rail is formed right and left back to back, and is configured in the same manner as described above. You can also.

In the present invention (Effect of the Invention), the rail pieces R ₀ to R _n which is formed on the shorter length as provided, the side connecting plates S ₀ to S from the rail piece R ₀ to R _n to either before or after protrudes the _n fixed, pivoted and the other of the side connecting plate S ₀ to S _n-1 of the protruding side and the rail piece R ₁ to R _n by a connecting shaft P ₁ to P _n, that The flexible rail F, which is formed by connecting a number of sets in a freely bendable manner, is very convenient for freely changing the height of a suitable position on the conveyor rail, and a trolley conveyor or a crossbar along the flexible rail F is provided. As a conveyance rail capable of smoothly rolling and guiding the guide rollers of the conveyor, an epoch-making effect that can be beneficially used for various uses is brought about.

In particular, as one application example, an electrodeposition coating apparatus that transports a work supported on a conveyor device such as a trolley conveyor or a crossbar conveyor and performs an electrodeposition process on the work in a processing tank group arranged according to a required process sequence. in the just above the processing bath group, as shown in FIG. 9, to constitute a vertically movable moving rail K ₂ in the vertical direction, the movable rail K ₂ and the carry-in side of the fixed spaced apart in the longitudinal between the rail K ₁ and the carry-out side rail K _3, if Kyosure the connection to electrodeposition coating after having configured the flexible rail F of the present invention, the processing tank group object to be transported in size large capacity However, unlike the conventional electrodeposition coating apparatus, the lifting stroke of the lifting table does not need to be unnecessarily large, and not only can the apparatus be remarkably efficient, but also the work efficiency is excellent. Also exerts effects.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a rail component member at an intermediate portion constituting a main portion of a flexible rail, FIG. 2 is a front view showing one set of an I-shaped piece and a connection plate at the intermediate portion, and FIG. FIG. 4 is an exploded perspective view showing an upper plate and a bottom plate fixed to both upper and lower surfaces of a set end of an I-shaped piece and a connection plate, and an abutting end of an I-shaped rail on a loading side;
The figure is an exploded perspective view showing a bottom plate including an I-shaped piece at a distal end and an upper plate fixed to both upper and lower surfaces of an abutting end with an I-shaped rail on a carry-out side. FIG. 5 is a front view showing a state in which the entire flexible rail is linearly connected in the longitudinal direction, and FIGS. 6 and 7 are longitudinal sectional side views of the flexible rail, of which FIG. FIG. 5 is a sectional view taken along the line II, and FIG. 7 is a sectional view taken along the line II-II. FIG. 8 is a front view showing a flexible state in which one or both of the front and rear ends of the flexible rail is vertically stroked. FIG. 9 shows a configuration in which a flexible rail is formed between an I-shaped rail that moves up and down in the vertical direction at the center and I-shaped rails on the loading side and the unloading side that are fixed at both front and rear ends with an interval therebetween.
FIG. 7 is a front view showing a state in which the front and rear flexible rails are bent in the vertical direction and stroked by the vertical movement of an I-shaped rail at the center. Code table F ...... flexible rail R ₀ ~R _n ...... I type pieces, X-X ...... folding reference line S ₀ ~S _n ...... side connecting plate P ₁ ~P _n ...... connecting shaft, θ ...... Inclination angle E, E ₁ , E ₂ ... distance K ₁ , K ₂ , K ₃ ... I-shaped rail L ₁ ... rail length, L ₂ ... plate length H ... rail height, H ₁ ... ... lower side height H ₂ ...... upper side height, h ...... plate height h ₁ ...... lower side height, h ₂ ...... upper side height T ...... trolley 1 ...... upper plate, 2 ... … Lower plate part, 3… Vertical plate part 4,5… Inflection part, 6,7 …… Upper tapered end face 8,9 …… Lower tapered end face, 10,19 …… Hole 11,12,26… … Welding, 13,14… Inflection part 15,16 …… Upper tapered end face 17,18 …… Lower tapered end face 20,23,24,25 …… Vertical end face 21 …… Upper plate, 22 …… Lower plate 27 ...... Rolling roller

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 21/00-21/22 B65G 17/00-17/48 C25D 13/00 304 C25D 17/06

Claims (6)

(57) [Claims] 1. A rail piece R ₀ to R _n is, I-type rail, and a H-type rail, lip grooved rail, a lip grooved outer rail and inner rail in fixed lip grooved rail to the ceiling portion of the rail Double rail, C-shaped lip grooved rail, C
Any one of the lip I-shaped rails in which the lip-shaped groove-shaped rails are formed back to back, wherein the rail pieces R ₀ to
Fixed protrudes side connecting plate S ₀ to S _n to either before or after the R _n, the front and rear end portions of the rail piece R ₁ ~R _n-1, inclined toward the upper side and the lower side The inflection portions 4 and 5 that change the gradient θ are formed, and the upper tapered end surfaces 6 and 7 that are obliquely upward are formed on the upper side of the inflection portions 4 and 5, and the lower tapered end surface that is obliquely downward is formed on the lower side. 8,9 is formed, the side connecting plate S ₀ to S _n with the rail pieces R ₀ ~
The multiple sets of rail members to a set of R _n, coupling shaft P ₁ ~
Flexible rail characterized by being pivoted freely at _Pn . Wherein the rail piece R ₀ to R _n is, I-type rail, and a H-type rail, lip grooved rail, a lip grooved outer rail and inner rail in fixed lip grooved rail to the ceiling portion of the rail Double rail, C-shaped lip grooved rail, C
Any one of the lip I-shaped rails in which the lip-shaped groove-shaped rails are formed back to back, wherein the rail pieces R ₀ to
Fixed protrudes side connecting plate S ₀ to S _n to either before or after the R _n, the front and rear end portions of the rail piece R ₁ ~R _n-1, inclined toward the upper side and the lower side The inflection portions 4 and 5 that change the gradient θ are formed, and the upper tapered end surfaces 6 and 7 that are obliquely upward are formed on the upper side of the inflection portions 4 and 5, and the lower tapered end surface that is obliquely downward is formed on the lower side. 8 and 9 are formed at the front and rear ends of the side connection plates S _{1 to} S _n-1 , and the inflection portion 1 that changes the inclination gradient θ toward the upper side and the lower side thereof
3 and 14, forming diagonally upward upper tapered end surfaces 15 and 16 on the upper side of the inflection portions 13 and 14, and diagonally downward lower tapered end surfaces 17 and 18 on the lower side thereof, side connecting plate S ₀ to S _n with the rail pieces R ₀ ~
The multiple sets of rail members to a set of R _n, coupling shaft P ₁ ~
Flexible rail characterized by being pivoted freely at _Pn . The 3. A rail piece R ₁ ~R _n-1 of the rail length L1 and the side connecting plate S ₁ ~S _n-1 of the plate length L2 is formed to be substantially the same, the rail piece R ₁ to R _n Side connection plate for _-1
3. The flexible rail according to claim ₁ , wherein S _{1 to} S _n−1 are fixed with a distance E in the front _- rear direction. Wherein the rail pieces R ₀ to R _n is, a type I piece consisting of top plate 1 and the bottom plate portion 2 and the vertical plate portion 3 which, vertical plate portion of the I-type pieces R ₀ to R _n 3 side connecting plate S ₀ to S _n and fixed protrudes into either before or after, the front and rear end portions of the I-type pieces R ₁ ~R _n-1, inclined toward the upper side and the lower side The inflection portions 4 and 5 that change the gradient θ are formed, and the upper tapered end surfaces 6 and 7 that are obliquely upward are formed on the upper side of the inflection portions 4 and 5, and the lower tapered end surface that is obliquely downward is formed on the lower side. 8 and 9 are formed at the front and rear ends of the side connection plates S _{1 to} S _n-1 , and the inflection portion 1 that changes the inclination gradient θ toward the upper side and the lower side thereof
3 and 14, forming diagonally upward upper tapered end surfaces 15 and 16 on the upper side of the inflection portions 13 and 14, and diagonally downward lower tapered end surfaces 17 and 18 on the lower side thereof, side connecting plate S ₀ with to S _n of the I-type pieces R ₀ to R _n
Multiple sets of a pair to rail members, the connecting shaft P ₁ to P _n
A flexible rail that is pivotally mounted on a flexible rail. 5. The connecting shaft P ₁ to P _n, the side connecting plates S ₀ ~
Through holes 19 provided in S _n-1 and through holes provided in rail pieces R _{1 to} R _n
5. The method according to claim 1, wherein the supporting member is inserted into the supporting member.
Flexible rail as described in. 6. The method according to claim 4, wherein the upper tapered end faces 6, 7 are formed obliquely upward in a T-shaped end face, and the lower tapered end faces 8, 9 are formed diagonally downward in an inverted T-shaped end face. Flexible rail.