JPH0220701A - Rail structure for vehicle for running on lawn - Google Patents

Abstract

PURPOSE:To eliminate the possibility of adverse effect on lawn and damages to clubs and to simplify installation by burying in rows a number of plastic base boards having holes and stake-like projections in the lawn ground to constitute a rail structure. CONSTITUTION:A base board 1A is formed with green polypropylene with integrally combined longitudinal and lateral beams 2, 2 and 2', 2' in the form of a lattice. the longitudinal beam 2 and the lateral beam 2' are disposed at different heights by turns to form spaces in lawn for passing a runner. From an annularly enlarged portion 3 at each intersection of beams 2, 2' extend stake-like projections 4, 4 upward with a slight outward inclination to form a crown-like shape. The ends of beams 2, 2' are provided with connection rings 7, 7 and projections 8, 8.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a rail structure for vehicles that run on grass in facilities such as golf courses, airports, or baseball fields.

[Conventional technology]

(Background) Today, at golf courses all over the country, players, caddies, and other personnel, as well as golf bags and other luggage, are transported on motorized carts from one hitting point to another in order to provide services to players and reduce fatigue of caddies. things are being done. (Problems with the prior art) However, the above-mentioned cart rails, for example,
No. 8002, No. 61-84701, JP-A-61-10
No. 9801, No. 61-113006, No. 113905
As indicated in each bulletin, etc., the concrete blocks are mainly made of concrete blocks buried in rows in a lawn area along the planned route of the vehicle and with a width sufficient to accommodate the wheels of the vehicle. be. Therefore, it goes without saying that construction requires a lot of work, but it also tends to cause poor growth or death of the grass due to poor drainage, as well as disease damage, and in addition, when trying to hit a ball that accidentally falls on the block, When doing so, there is a risk of accidentally hitting an exposed block and damaging the club, and to avoid this risk, if you lay the rails away from the fairway, the effect of installing cart rails will be halved.

[Problem M that the invention attempts to solve]

Therefore, the problems to be solved by the present invention are: 1. Has almost no negative effect on the growth of Shiba, 2. Easy to install, and
To provide a rail structure for a vehicle running on a lawn without fear of damaging a club even if it is hit accidentally.

[Means to solve the problem]

(Summary) In order to solve the above-mentioned problems, the rail structure for a vehicle running on a lawn according to the present invention is provided in which a plastic perforated substrate having a large number of pile-like protrusions is placed in the ground of a lawn. They are characterized by being buried in rows along the planned route of vehicles traveling on the ground, with a width sufficient to accommodate the wheels of the vehicles. Below, we will discuss the main matters related to the invention. (Substrate with holes) The substrate with holes in the present invention is made of a plastic material such as polyvinyl chloride, high-density or low-density polyethylene, polypropylene, polyamide, polyacetal, polyphenylene oxide, polycarbonate, etc., by ordinary injection molding means. Preferably it is produced as a green shaped body. This one is equipped with a large number of stake-like protrusions and a hole penetrating the main plate surface. These holes allow rainwater to freely infiltrate and at the same time do not obstruct the passage of the stems and roots of the grass, so they do not significantly reduce the overall mechanical strength and support the pile-like protrusions. It is preferable that the number of substrates be as large as possible or as large as possible within limits that do not impede the It is a combination of stays that connect diagonally within the squares of the lattice. The pile-shaped protrusion is formed to protrude from the substrate surface by 15 to 30 mm, preferably by 20+sa+. At this time, each stake-like protrusion may be slightly inclined with respect to the vertical plane or may have a curled tip in order to reduce the impact of the foreign body sensation imparted to the shoe when walking. The length of the pile-shaped protrusions mentioned above was set with the aim of making the tips of the protrusions somewhat protrude from the top surface when the grass is pasted on this board, but of course it depends on the thickness of the grass. There is no reason why the distance and adhesion should be limited to the above range, considering the differences in conditions. Each pile-like protrusion may be arranged in any manner with respect to the substrate. For example, in a format where the substrate forms a grid, the pile-like protrusions may be arranged in rows at regular intervals with respect to the beams forming the grid (Example 3 described in f&), Alternatively, it is common to arrange them on a crown on an annular portion provided at each intersection of each longitudinal and transverse beam member (Examples 1 and 2 described later), but there may be countless other variations. Note that since the above-mentioned holed substrate is used in a state in which a large number of unit substrates of a certain shape, preferably square, are connected, it is preferable that connecting means be provided around the periphery. In addition, this substrate can further include short fixing barbs on the back side, if desired. (Arrangement) A large number of the above-mentioned substrates with holes are connected together and laid along the planned travel route of a vehicle traveling on a grassy ground, with a center spacing between both wheels of the vehicle. Further, if desired, the guiding wire may be laid along the laying path (usually at the center between the perforated substrates on both sides, but in a cart with one front wheel, it also serves as the front wheel rail). In this case, the guiding wire will be fixed by the protrusion. Incidentally, since this board is made of plastic, it can be slightly curved within approximately the same plane.
There is no need for special arrangements or notes for curved roads, as described in Publication No. 905. (Construction) To construct the structure of the present invention, the grass surface (or the planned surface for turfing) must be placed along the planned vehicle travel path (and if necessary, the electrical cable installation path) to the width equivalent to the width of the perforated substrate. After excavating the ground to a depth of about 10 to 15 cm, connect and lay the perforated substrates on top of it, and lay the electric wire together.After lightly scattering light soil such as field soil on top of it, above,
After placing the lawn and pressing it down to drive the pile-like protrusions into the lawn, the construction is completed by covering with top dressing. Filling with this top sand gives the pile-shaped protrusions sufficient load-bearing capacity, and in extreme cases it can be used even immediately after construction. In addition, instead of pasting grass, Western grass seeds may be scattered. Even in this case, the seedlings of the young grass that have sprouted are protected from the damage of trampling by the pile-like protrusions. Since there is no need to transport materials, the construction period can be significantly shortened.

[Effect] The rail structure for a vehicle traveling on a lawn according to the present invention is easy to install and easy to form a curved road. In particular, its greatest feature is that it does not interfere with the free growth of grass grass, so within a short period of time after it is laid, grass will grow densely like a regular lawn, so even if it is laid in the center of a fairway, it will look great. In addition, since the entire club is made of plastic, even if you accidentally hit the protruding pegs, there is no risk of damaging the club or causing abnormal impact to your arms. . 【Example】

Example 1 (Example of a substrate with holes; Part 1) FIG. 1 is a plan view of an example of a substrate with holes suitable for carrying out the invention, and FIG.
FIG. 2 is a sectional view taken along line XX in FIG. 1; The entire board IA is made integrally by injection molding using green-colored poly-10-pyrene resin as a material, and is made up of approximately four longitudinal and horizontal beam members 2, 2, and 2', 2', etc. It is formed on a combination of squares. However, as is clear from FIG. 2, the longitudinal beam members 2 and the latitudinal beam members 2' are designed to alternately have different heights to form a space through which the grass runners can pass. At each intersection of each beam member 2, 2', there is an annular enlarged portion 3°3...
interposed therebetween, and from the annular portion are six stake-shaped protrusions 4.
4... extends upward with a slight inclination outward from the vertical line, giving it a crown-like shape. At the lower part of each annular portion 3, fixing barbs 6, 6, . . . are formed via notches 5, 5, . In addition, at the end of each of the above-mentioned beam members, there is a connecting ring 7.
・Protrusions 8, 8... are provided. Embodiment 2 (Example of a substrate with holes; Part 2) FIG. 3 is a plan view showing a modification of the substrate with holes of Embodiment 1 in which a wire fixing means is added, and FIG. 4 is a line Y-Y in FIG. FIG. The first board in this example is almost the same as the one in the previous example, except that
The difference is that wire holders 9, 9, . . . having a substantially inverted Ω-shape in cross section are provided at the center of the beam member 2' in the weft direction. During construction, by locking the wire in the holder, accurate wiring can be easily performed along the receiver of the vehicle. Example 3 (Example of substrate with holes: Part 3) Figure 5 shows the front 4
A plan view of a substrate with holes in a separate form from the figure, FIG.
FIG. 2 is a cross-sectional view taken along line 2-2 in the figure. The perforated substrate 1° of this example has a large number of stake-like protrusions 4 at regular intervals on the upper surface of each longitudinal girder member 2, 2... and latitude girder member 2", 2" constituting a lattice-like frame-like body. 4... are placed upright in the - row.The spacing between adjacent bifurcated protrusions is designed to match the spacing between the guiding wires.In this example as well, there are short anchors on the bottom surface of each girder. Further, on the outside of the outermost girder material, a connecting ring and protrusions 7, 7, and protrusions 8,8 are provided.Example 4 Construction Fig. 7 is a schematic sectional view showing a construction example of the rail structure for a lawn vehicle according to the present invention, and Fig. 8 is a partial plan view just before filling with top sand.Structure of the present invention To construct the trench, dig a trench into the ground E to a depth of 10 to 15 cm along the planned travel route (including the planned cable burial route), smooth the bottom surface T of the trench T, and fill it with field soil. 52 in a thin layer (Figure 7A)
f, &, On the bottom surface T, lay out a board with holes +A (of course, it is not limited to this board, but it is shown merely as a representative example), and wire the electrical wires C as shown in Figs. 7B and 8. ), spread the lawn on the substrate 1 and press it lightly.
After inserting the stake-like protrusions 4, 4... into the lawn,
Furthermore, fill with top sand S, adjust the pressure, and complete the construction (Fig. 7 C)
. The rail structure formed as described above does not inhibit the growth of Shiba at all due to the presence of a large number of two-dimensional spaces, and -
The seemingly fragile-looking pile-shaped protrusions on the substrate are firmly held in place by the spread and tangled runners and roots of the grass, and the filled filler, and as a result, it can completely withstand the running of about two truck cars. It has been experimentally proven that the vibrations of the pile-like protrusions that occur during running constantly vibrate the top sand and form microscopic gaps, promoting air circulation and surface drainage.
It also has indirect effects such as cultivating strong grasses that are resistant to Haruhage disease, fairy ring disease, and other diseases.

【Effect of the invention】

As explained above, the present invention provides a track structure for vehicles running on lawns that has almost no negative effect on the growth of grass, is easy to construct, and does not cause damage to the club even if it is hit too hard. Through the provision of scales, golf courses and others,
Provides great benefits to lawn holding facilities and their users.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an example of a substrate with holes suitable for carrying out the invention, FIG. 2 is a sectional view taken along line X-X in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line Y-Y in FIG. A plan view of the substrate, FIG. 6 is a sectional view taken along the line 2-2 in FIG. 5, and FIG. 7 is a schematic sectional view showing an example of construction of the rail structure for a lawn vehicle according to the present invention. , FIG. 8 is a partial plan view just before filling with top dressing. The meanings of the symbols in each figure are as follows: □ 1A to 1c: Substrates with various holes; ・2: IA to 1c longitudinal girder materials, 2'=1^ to 1° latitude girder materials; 3: IA =1m inter-girder annular expansion;・4:IA
- Pile-like protrusion of ~1c; ...5; Notch at the bottom of 3; -6: Thorn-like part of the bottom of 18-1c: -7: Connection ring, 8: Connection protrusion; Figure 1 E; Ground, R: Planned running route, T: Groove.・■,: Bottom surface of groove T; Figure 2 Patent applicant Sungreen Shoji Co., Ltd. Figure 4 Figure 6

Claims (1)

[Scope of Claims] 1. A plastic perforated substrate having a large number of stake-like protrusions is placed in the ground of a lawn along the planned travel route of a vehicle traveling on the lawn and along the vehicle's wheels. A rail structure for a vehicle running on a lawn, characterized in that the rail structure is buried in rows with a width sufficient to accommodate the vehicle. 2. Claim 1, wherein the board with holes is buried so that the rear wheel rails on both sides and the front wheel rail in the center can be mounted, and the guiding wire is buried between the protrusions of the center board row with holes for the rails. The structure described. 3. The structure according to claim 1, wherein the perforated base plate is buried to fill at least the gap between the rear wheel rails on both sides, and the guiding wire is buried between the protrusions of the central perforated base plate row. 4. The structure according to claim 1, wherein the protrusion of the holed substrate has a crown shape. 5. The structure according to claim 1, wherein the tip of the protrusion of the holed substrate is located near the ground surface.