JPH061602Y2 - Tubular rail connection structure and laying structure - Google Patents

Description

[Detailed description of the device] [Industrial applications]

This invention is implemented, for example, in the construction of a tubular rail that is laid between tea ridges in a tea garden, runs a tea garden management device that straddles the tea ridges, and plucks tea leaves, prunes tea trees, trims branches, and performs various other tea garden management work. Tubular connection structure and laying structure.

[Prior art]

Conventionally, tubular rails for tea garden management equipment have a thin steel pipe with an outer peripheral surface coated with a synthetic resin such as polyethylene in a thin and uniform layer, and an inner surface of the steel pipe with rust-preventive coating.
A resin-coated steel pipe of 8 or φ38 is preferably used. Traditionally, tubular rail interconnections provided in unit length are
This is performed using the inner joint a illustrated in FIGS. 9 and 10 (see Japanese Utility Model Publication No. 4-15768). The inner joint a has a flange a ₁ having the same diameter as the outer diameter of the tubular rail b in the center portion, and a split a ₂ is formed over the entire length in the axial direction, so that an interference fit is possible. A synthetic resin female cap c is welded to the end of the tubular rail b to seal the inner surface of the pipe. By inserting the inner joint a into the female cap c in a tightly fitted state, the tubular rails b and b are connected to each other in series. Next, as a means for laying the tubular rail b at a certain height on the ground, as shown in FIG. 11 and FIG.
The upper end of the support pile e and the tubular rail b that are vertically struck into the joint f and the adjuster mechanism g for height adjustment.
, And is supported so that the height can be adjusted (see Japanese Utility Model Publication No. 4-17602). The joint f is
A half-divided connecting portion f to be attached and held on the lower surface of the tubular rail b
₁ and a cylindrical male connector g at the upper end of the adjuster mechanism g
A half-divided connecting part f ₂ which is connected by fitting to ₁ is integrally formed as an arrangement in which respective center lines are orthogonal to each other. The adjuster mechanism g includes the adjuster cap g ₂ which fit to the upper end of the support piles e, made from the adjuster cap ground plate is screwed into the formed external thread on the outer peripheral surface of the g ₂ g ₃ Prefecture, the ground plate g ₃ The height of the tubular rail b is adjusted by turning it to the ground d to take a supporting reaction force and pushing up the adjuster cap g ₂ . A cylindrical connecting portion g ₁ is integrally formed on the upper end portion of the adjuster cap g ₂ .

[Problems to be solved by the present invention]

(I) The portion where the tubular rail b is connected by the inner joint a as shown in FIG. 10 is weak in bending. Therefore, if possible, such a tubular rail connecting portion should be formed as shown in FIGS.
The load applied to the tubular rail connection portion by the support pile e is set so as to be located on the half-divided connection portion f ₁ of the joint f in the figure or located at a close distance from the half-divided connection portion f _1. It is required to have a configuration to receive it. Therefore, it is essential to design and install the driving position of the support pile e and the connecting position of the tubular rail so as to coincide with each other. However, as a matter of fact, on-site work is not carried out as designed, which is a bottleneck in construction. (II) Next, the half-divided connecting portion f ₁ of the joint f is the first
As is clear from FIG. 2, a configuration in which at least 180 ° or more of the circumference of the tubular rail b is embraced, and the tubular rail b is securely restrained and supported so as not to vibrate vertically or laterally or to be laterally displaced. To be done. Therefore, the wheel h of the tea plantation management device running on the tubular rail b, particularly the flange portions on both sides, is divided into half-shaped connecting portions f ₁ each time the position of the joint f is passed.
It makes contact with (collision) with and rattles over the sound while making a rattling sound and rattles in the vertical and horizontal directions to hinder smooth running. Not only that, when the wheel h passes over the position of the joint f and the tea field management device sways up and down, left and right, the work of picking tea leaves and the work of branching are impaired, and there is a big problem that the work accuracy varies. It has become. (III) Therefore, the object of the present invention is to firstly improve the structure in which the tubular rails are connected at the position of the support pile by a so-called inner joint type so that the movement of the wheels running on the tubular rails over the joint occurs. Not to do, and to improve the load bearing weakness in the connection structure of the inner joint alone to improve the workability of the rail laying work and the tubular rail support performance, and the tubular rail laying structure based on the above connection structure. To provide.

[Means for Solving the Problems]

As a means for solving the above-mentioned problems of the prior art, the tubular rail connection structure according to the present invention has a cap 2 at the upper end of a support pile e that is driven into the ground and stands up.
0 or 20 'is fitted so that it can slide vertically.
The joint 10 for connecting the tubular rail is connected to the connector 22 attached to the upper end of the cap so as to be tiltable by the connecting portion 3. The joint 10 has a diameter substantially equal to the outer diameter of the tubular rail b. On both sides of the cylindrical base 1, male connectors 2 to be inserted into the hollow portion of the tubular rail are projected on the same center line in a substantially symmetrical shape, and the base 1 is connected to the cap connector. 3 is integrally provided, and the left and right tubular rails b, b are connected in series to the male connectors 2, 2 on both sides of the joint 10, respectively (mainly (See FIGS. 5 and 6). The tubular rail connection structure according to the present invention also includes an adjuster mechanism g, in which an adjuster cap g ₂ is slidably mounted on the upper end of a support pile e that is driven into the ground. the adjuster is screwed ground plate g ₃ external thread formed on the outer peripheral surface of the cap, the height of the adjuster cap by the reaction force obtained by contact with the ground the ground plate is adjusted, the adjuster cap A joint 10 for connecting a tubular rail is tiltably connected to a connector g ₁ attached to an upper end by a connecting portion 3 of the joint g. The joint 10 has a columnar shape having substantially the same diameter as the outer diameter of the tubular rail b. Male connectors 2 to be inserted into the hollow portions of the tubular rails are provided on both sides of the base portion 1 forming the same so as to project substantially symmetrically on the same center line. The connecting portion 3 to be connected to the connector of the tercap is integrally provided, and the left and right tubular rails b and b are connected in series to the male connectors 2 and 2 on both sides of the joint 10. These are also characterized (see mainly FIGS. 1 and 2). In the above-mentioned tubular rail connection structure, the base portion 1 of the joint 10 is formed as a hollow cylindrical body, and a male connector is formed through a metal pipe in the hollow portion, and both sides of the joint 10 are the same. It is also characterized in that the center lines of the male connectors 2 and 2 and the center line of the connecting part 3 provided on the base part 1 are arranged orthogonal to each other. Next, the tubular rail laying structure according to the present invention has the same configuration of the tubular rail connection structure described above, and further, at the upper end portion of the support pile e that is driven up into the ground at the intermediate position of the tubular rail b. The cap is fitted so as to be slidable in the vertical direction, and a joint 12 for supporting an intermediate portion of the tubular rail is tiltably connected to the connector attached to the upper end of the cap by the joint. Is a rail-supporting half-divided connecting portion 6 formed in a substantially C-shape having an inner diameter substantially the same as the outer diameter of the tubular rail and having a center line substantially parallel to the center line of the tubular rail, and the cap. The connecting portion 7 connected to the child is integrally formed, and the rail-supporting half-divided connecting portion 6 is formed in a shape and a size that do not come into contact with a wheel traveling on the tubular rail b. The half-divided joint of the joint 12 Part lower surface portion of the tubular rail b 6 is characterized in that it is supported (see Fig. 7 and FIG. 8 mainly). Also in the case of the laid structure of the tubular rail, the joint 12 for supporting the intermediate portion of the tubular rail has the adjuster cap g ₂ vertically slid on the upper end portion of the support pile e which is driven into the ground at a predetermined position and stands up. And a ground plate is screwed into a male screw formed on the outer peripheral surface of the adjuster cap, and the height of the adjuster cap g ₂ is adjusted by a reaction force obtained by grounding the ground plate to the ground. A joint 12 for supporting an intermediate portion of the tubular rail b is connected to a connector g ₁ attached to an upper end of the adjuster cap so as to be tiltable by a connecting portion 7.

[Action]

A work for connecting a series of tubular rails b in an inner joint form with a joint 10 or 11 for rail connection having substantially symmetrical male connectors 2 or 2 ', and, on the other hand, a work for driving a support pile e into the ground. Can be done separately and independently. After that, the connecting portion 3 of the joint is tiltably connected to the support pile e, so that the tubular rail connection portion is reliably and firmly supported by the support pile e. Moreover, the tiltable connection allows the tubular rail to tilt naturally according to the moving load of the tea garden management device running on the tubular rail b, so that bending stress is concentrated on the fulcrum by the support pile e. Avoid and improve durability during long service life. In addition, the intermediate position from the connecting portion to the connecting portion of the tubular rail b is also supported by a support pile e in which the joint 12 for supporting the intermediate portion is tiltably and movably connected. Is performed. Since each of the joints 10, 11 and 12 does not have any projecting portion against which the wheel h collides, the wheel h smoothly passes through the position of each joint, and shakes in the vertical and horizontal directions and produces an impact sound. do not do. Further, by the adjuster mechanism g interposed between each of the joints 10, 11 and 12 and the support pile e, the tubular rail b
The laying height of can be adjusted appropriately during and after construction.

【Example】

Next, the illustrated embodiment of the present invention will be described. FIGS. 1 and 2 show a connecting structure of tubular rails b by an inner joint type joint 10 having a male connector 2. The tubular rail connecting joint 10 is integrally formed of synthetic resin such as polyethylene. In the axial direction on both sides of the base 1 having a short columnar shape having the same outer diameter as the outer diameter of the tubular rail b (φ28 to φ38 positions), male connectors 2 and 2 are provided on the same center line so as to project in a substantially symmetrical shape. There is. The male connector 2 has a diameter substantially the same as the inner diameter of the female cap c sealed in the hollow portion at the end of the tubular rail b, and is inserted into the female cap c in an interference fit state. By the male connector 2, the tubular rails b are butt-connected in series in the form of an inner joint. The base portion 1 and the male connector 2 have a hollow structure, and have a single split 8 in the axial direction. The outer diameter of the base portion 1 and the male connector 2 are elastically deformed to allow an easy interference fit. . In the base portion 1, the male connector g ₁ attached to the upper end of the adjuster cap g ₂ which is fitted to the upper end of the support pile e so as to be slidable in the vertical direction extends around the circumference of the male connector g ₁ at an arc angle of about 240 °. Approximately C, which is elastically held in an interference fit
The character-shaped female connecting portion 3 is integrally formed in a direction orthogonal to the center line of the male connecting element 2. This female connecting portion 3
It is formed to have the same length as the outer diameter of the base 1 (Fig. 2).
The base portion 1 and the female connecting portion 3 are reinforced at a position including a center line of the female connecting portion 3 and at a plane perpendicular to the center line of the male connecting portion 2 with the same width as the outer diameter of the base portion 1. The ribs 5 are integrally and firmly connected. Therefore, the joint 10 does not have any projecting portion on which the collar h of the wheel h traveling on the tubular rail b collides or gets on (see FIG. 2). The female connecting portion 3 is oriented in a direction orthogonal to the center line of the tubular rail b, and is tiltably connected to the male connecting member g ₁ of the adjuster cap g ₂ by inserting it from the lateral direction. Therefore, the fulcrum of the tubular rail b, particularly the support pile e, is allowed to sequentially tilt in the vertical direction according to the moving load of the tea garden management device or the like. Male connector of adjuster cap g ₂ g
_The female connecting portion 3 connected by being fitted into ₁ is prevented from lateral displacement and separation by lateral deviation preventing ribs g ₄ projecting like flanges at both ends of the male connecting portion g ₁ . The adjuster cap g ₂ constituting the adjuster mechanism g is vertically slidably mounted on the upper end of the support pile e which has been driven sufficiently deep into the ground d to obtain a supporting force. Ground plate g ₃ screwed to the external thread of the outer peripheral surface of the adjuster cap g ₂ is supported by the operation taking the reaction force, the male coupling element height of g ₁ of the adjuster cap g ₂ is grounded by turning it to the ground d As a result, the laying height of the tubular rail b can be appropriately adjusted in a wide range. Therefore, the driving amount of the support pile e or the ground d
The length of the pile head protruding upward does not pose a problem in construction, rail laying work is easy, and construction accuracy is easy to obtain. In the above-described rail connecting joint 10, the connecting portion 3 that is integral with the base portion 1 is formed as a female connecting portion that is substantially C-shaped when viewed from the front direction, but this is not a limitation. This connecting portion 3 is formed as a substantially cylindrical male connecting member,
On the other hand, the male connector g ₁ of the adjuster cap g ₂ can be configured as a C-shaped female connector on the contrary, and the same operation can be performed.
There is no change in the action effect. This also applies to each of the embodiments described below.

Second Embodiment FIG. 3 shows a connecting structure of tubular rails b by means of a joint 11 in which the male connector 2'is formed of a metal pipe separate from the base 1 '. Also in this joint 11, the base portion 1 ′ and the female connecting portion 3 are integrally molded of synthetic resin. However, the base 1 '
Is formed as a cylindrical body having a hole having substantially the same diameter as the outer diameter of the male connector 2 ', and a metal pipe having a split 8'in the axial direction is inserted into the hollow portion thereof in a tight fit state. Male connectors 2 ', 2'are formed so as to project in equal lengths on the left and right. Therefore, the configuration, usage and effect of the tubular rail connection structure using this joint 11 are similar to those of the first embodiment.

[Third and Fourth Embodiments] FIG. 5 shows that the same joint 10 as in the first embodiment is used, and tubular rails b and b are butt-connected in series to the male connectors 2 and 2 on both sides thereof. However, a cap 20 having a ground plate 21 at the lower end and a male connector 22 at the upper end is fitted to the upper end of the support pile e that has been driven up to the ground d. The connection structure of the tubular rail in which the female connecting portion 3 of the joint 10 is fitted and is tiltably connected is shown. In short, the height from the ground to the male connector 2, and thus the height of the tubular rail b, is defined only by the height at which the ground plate 21 of the cap 20 is grounded (that is, the effective height of the cap 20).
It does not have an adjuster function. Further, FIG. 6 also shows a joint 10 which is the same as that of the first embodiment.
The tubular rails b are butt-connected in series with each other by using, but the cap 20 ′ having only the male connector 22 is fitted to the support pile e, and the female connector of the joint 10 is connected to the male connector 22. The connection structure of the tubular rail which connected the part 3 tiltably is shown. Also in this embodiment, the adjuster mechanism is not provided. In FIG. 6, 23 is a male connector 22 of the cap.
Which are ribs for preventing lateral deviation protruding from both ends of the rib. Since the embodiment shown in FIGS. 5 and 6 has a connecting structure without an adjuster mechanism, it can be effectively carried out on a relatively flat ground which does not require the height adjustment of the tubular rail b. However,
Since the female connector 3 and the male connector 22 are tiltably connected to the support pile e, the tubular rail b is vertically tiltable.

[Fifth Embodiment] FIGS. 7 and 8 show a joint 12 for supporting the intermediate portion between the connecting portions (intermediate portions) of the tubular rail b according to the connecting structures of the respective embodiments described above. The part of the tubular rail laying structure used and supported by the support pile e is shown. The joint 12 for supporting the intermediate portion has an inner diameter substantially the same as the outer diameter of the tubular rail b, and a substantially C-shaped half-divided connecting portion 6 that supports approximately the lower half of the circumference of the tubular rail b, and a support pile. The male connector g ₁ of the adjuster cap g ₂ slidably attached to e and the female connector 7 that is tiltably connected are integrally formed. The half-divided connecting portion 6 is
It is oriented so as to have a center line substantially parallel to the center line of the tubular rail b, and is formed in a shape and size (width w) in which both flange portions of a wheel h traveling on the tubular rail b do not come into contact with each other. 8
Figure). Therefore, according to the structure for supporting the intermediate portion of the tubular rail b by the joint 12, the wheel h traveling on the tubular rail b does not have any projecting portion at which the flange portion particularly collides or rides up. It runs extremely smoothly. Since the connecting portion of the tubular rail b is directly supported by the support pile e by the connecting structures of the first to fourth embodiments, the intermediate portion of the tubular rail b is supported only by the wheel h through the tubular rail b.
It suffices to simply support the applied load (moving load) applied to. Therefore, it is sufficient to support the joint 12 for supporting the intermediate portion by the half-divided connecting portion 6. The female connecting portion 7 of the joint 12 is connected to the male connecting member g ₁ of the adjuster mechanism g as shown in FIGS. 7 and 8 and also to the upper end of the support pile e as shown in FIG. 5 or 6. It can also be carried out in a mode in which the cap 20 or the male connector 22 of the cap 20 or 20 'is attached to the male connector 22.

According to the tubular rail connection structure of the present invention, the butt connection of the tubular rails b is performed by the inner joint type and the direct support is performed by the support pile e. Since the tubular rail connecting portion can be firmly and stably supported, rail laying work can be easily performed and workability can be improved. Further, according to the laying structure of the tubular rail according to the present invention, since the wheel h traveling on the tubular rail b as a whole has no protruding portion on which the brim portion particularly collides or rides up, the wheel h Runs smoothly with no noise and no vibration. Therefore, it is possible to uniformly and accurately perform tea leaf plucking and tea tree branching by the tea garden management device. However, the rail laying work such as the connection of the tubular rail b, the driving of the support pile e, the connection of both, and the support of the rail middle portion is simply performed by the joints 10 and 11 for the tubular rail connection and the joint 12 for the intermediate support. It can be performed reliably, does not require technical skill for rail laying work, has good workability, and is easy to secure construction accuracy. Moreover, since the adjuster mechanism g is used together with the support pile e, the laying height of the tubular rail b can be easily adjusted at any time, which greatly contributes to the improvement of rail laying accuracy and the workability of rail laying work. .

[Brief description of drawings]

1 and 2 are a front view and a side view showing the tubular rail connecting structure as a half section, respectively, FIG. 3 is a sectional view showing a tubular rail connecting structure with different joints, and FIG. 4 is one of the joints. Side views with parts omitted, FIGS. 5 and 6 are front views showing the tubular rail connecting structure without using the adjuster mechanism in half section, and FIGS. 7 and 8 show the support of the intermediate portion of the tubular rail. Front and side view, half sectioned, 9th
FIG. 10 and FIG. 10 are sectional views showing a connecting portion of a tubular rail by a conventional inner joint before and after connection, respectively.
1 and 12 are a front view and a side view showing a supporting structure of a tubular rail using a conventional adjuster mechanism in a half section. 10, 11 ... Joint for connecting tubular rail 12 ... Joint for supporting intermediate portion b ... Tubular rail, 1, 1 '... Base 2, 2' ... Male connector, e ... Support pile 3 ... Connecting portion, 6 ... Half split-shaped connecting portion 7 ... connecting portion, g ... adjuster mechanism g 1 _... consolidated g 2 _... adjuster cap g 3 _... ground plate

Claims (7)

[Scope of utility model registration request] 1. A cap is fitted on an upper end portion of a support pile that is driven into the ground so as to be vertically slidable, and a joint for connecting a tubular rail is connected to a connector attached to the upper end of the cap. The joints are tiltably connected to each other, and the joint is a male connector inserted into the hollow portion of the tubular rail on both sides of a cylindrical base portion having substantially the same diameter as the outer diameter of the tubular rail. It has a configuration in which a connecting portion that is connected to the connector of the cap is integrally provided on the base portion so as to project in a substantially symmetrical shape, and the left and right tubular rails are respectively connected to the male connector on both sides of the joint. The tubular rail connection structure is characterized in that each is connected to the. 2. An adjuster cap is fitted on an upper end portion of a support pile which is driven into the ground so as to be vertically slidable, and a ground plate is screwed into a male screw formed on an outer peripheral surface of the adjuster cap. , The height of the adjuster cap is adjusted by a reaction force obtained by grounding the ground plate to the ground, and a joint for connecting a tubular rail to a connector attached to the upper end of the adjuster cap can be tilted by the connecting portion. The joint is a male and female connector inserted into the hollow portion of the tubular rail on both sides of a cylindrical base having a diameter substantially the same as the outer diameter of the tubular rail. It is a configuration in which a connecting portion that is projectingly provided and that is connected to the connector of the adjuster cap is integrally provided on the base, and the male connectors on both sides of the joint are provided. Respectively wherein the right tubular rails are respectively connected series to the connection structure of a tubular rail. 3. A tubular rail connecting structure, wherein the base of the joint according to claim 1 or 2 is formed as a hollow cylinder, and a male connector is formed through a metal pipe in the hollow. . 4. The center line of the male connector on both sides of the joint according to claim 1 or 2 and the center line of the connecting portion provided on the base portion are arranged orthogonal to each other.
Connection structure for tubular rails. 5. A cap is fitted on the upper end of a support pile driven up into the ground so as to be vertically slidable, and a joint for connecting a tubular rail is connected to a connector attached to the upper end of the cap. And a male connector inserted into the hollow portion of the tubular rail on both sides of a cylindrical base having substantially the same diameter as the outer diameter of the tubular rail. And a connecting portion that is connected to the connector of the cap is integrally provided on the base, and the left and right tubular rails are connected in series to the male connectors on both sides of the joint. The cap is slidable in the vertical direction on the upper end of the support pile which is driven into the ground at the intermediate position of the tubular rail, and the connector attached to the upper end of the cap is attached to the middle of the tubular rail. Support Rail is tiltably connected by its connecting portion, and the joint is formed in a substantially C-shape having an inner diameter substantially the same as the outer diameter of the tubular rail and a center line substantially parallel to the center line of the tubular rail. The supporting half connecting portion and the connecting portion connected to the connector of the cap are integrally formed, and the rail supporting half connecting portion is in contact with a wheel traveling on a tubular rail. A tubular rail laying structure, characterized in that the tubular rail is formed in a shape and size not to be supported, and the lower surface portion of the tubular rail is supported by the half-divided connecting portion of the joint. 6. The tubular rail connecting joint and the intermediate portion supporting joint according to claim 5 each have an adjuster cap vertically slidable on the upper end portion of a support pile which is driven up into the ground at a predetermined position. The ground plate is screwed into a male screw formed on the outer peripheral surface of the adjuster cap, and the height of the adjuster cap is adjusted by a reaction force obtained by grounding the ground plate to the ground, Laying a tubular rail, wherein a joint attached to the upper end of the adjuster cap is connected to the joint for tubular rail connection and a joint for supporting an intermediate portion in a tiltable manner by each joint. Construction. 7. A connection structure or a laying structure for a tubular rail, wherein the cap according to claim 1 or 5 has a ground plate at a lower end portion thereof.