JP2523777Y2 - Joint structure of rubber sheet in golf driving range - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rubber sheet joining structure in a driving range where a rubber sheet is laid on a base.

[Prior Art] A driving range is generally equipped with a fence 20 as shown in FIG.
A bat 21 is provided on one side of the field surrounded by
The base is conventionally laid with natural grass, the hit ball stays on the base, and the ball is collected at night, etc. after the business hours of the practice area are over. It was done by hand and took a lot of time and money.

Therefore, in order to save the trouble described above, carpet is laid on the ground surface instead of natural grass, and the ground is sloped so that the hit ball rolls down into the groove provided at the end of the practice field, and the labor of collecting balls is reduced. Significant reductions have been made.

However, in the case of the base structure as described above, the carpet is usually made of a synthetic resin, so that when the hit ball rotates and falls on the upper surface thereof, friction occurs, and the synthetic resin melts due to the frictional heat, and the golf ball is melted. Occurs and the ball becomes dirty and must be cleaned.

In addition, in terms of ball collection, the carpet has hair on the surface, and the surface gradient must be about 8 to 12% to ensure that the ball rolls down. The problem was that the amount of embankment increased due to the earthwork on the surface, and the slope was steep, so the direction in which the ball struck bounced inevitably changed downward on the slope, giving the trainer an unnatural feeling.

In addition, when the ball hits the ground on which the carpet is laid, the carpet is displaced by the force of the ball and the wrinkles are formed, and the appearance is deteriorated, and the ball does not come off at the wrinkled portion.

By the way, recently, a colored rubber sheet has been used instead. As shown in FIG. 5, a wide sheet 26 having a width of about 8 m and having a stepless joint 25 manufactured at a factory.
For example, the wide seat 26 is laid so that the joining portion 25 extends in the longitudinal direction of the golf driving range, and the end of the wide sheet 26 in the width direction is joined. The terminal 27 in the longitudinal direction of the wide rubber sheet is fixed to the rubber sheet laid in the ball-collecting groove 28 or embedded in the base.

[Problem to be solved by the invention] In this case, the joining work of the sheets requires attention,
If the seat is wrinkled, the ball will not roll smoothly. In such a case, the ball does not fall into the U-shaped groove, and it becomes impossible to pass the water.

However, in practice, the wide sheet thermally expands and sags.At the same time, the hit ball directly collides with the sheet surface, and when this occurs repeatedly, the central portion of the wide sheet tries to be displaced by the impact force of the hit ball, especially In the vicinity of the fixing of the seat terminal, a large tension was applied, and wrinkles 29 were generated.

An object of the present invention is to improve such a problem, and an object of the present invention is to provide a bonding structure of a rubber sheet which is hardly wrinkled on a wide sheet laid on a base of a driving range.

[Means for Solving the Problems] In order to achieve the above objects, in the present invention, a slope is provided on a base for a driving range, a rubber sheet is laid on the surface of the base, and an end of each rubber sheet is provided. In the joining structure of the rubber sheets in which the parts are overlapped and joined, the end portions of the respective rubber sheets are overlapped and joined together with an adhesive layer therebetween, and the locking material is provided at the sheet end in contact with the base. The end of the rubber sheet is fixed to the base by inserting the rubber sheet into the base through a hole.

Of course, in the present invention, in the bonding structure of the rubber sheets, the end surfaces of the sheet ends located on the upper side may be arranged so as not to oppose in the ball flying direction.

[Action] In the rubber sheet joining structure of the golf driving range of the present invention, the rubber sheet on the side where the ends of the rubber sheets are overlapped and lap-joined with an adhesive layer therebetween, and the locking material is in contact with the base material. Since the rubber sheet is inserted into the base through the through hole provided at the end, the laid rubber sheet covers a wide area and is evenly engaged with the base. Therefore, even if the ball directly collides with the seat, there is no displacement of the seat, and no wrinkles occur near the fixing of the seat terminal.

In addition, at the sheet end, the locking material penetrates the lower sheet end in contact with the base and is inserted into the base, and the upper sheet end is covered with the locking material. The waterproofness of the joint is sufficiently ensured, and the hardness of the ground surface can be kept constant.

Further, if the end surface of the sheet end located at the upper side of the joint is not directed in the direction in which the ball flies, damage to the joint due to the ball, peeling of the sheet, and the like hardly occur.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a top view of a joint portion of a rubber sheet in a golf driving range according to the present invention, and FIG. 2 is a view A of FIG.
FIG. 3 is a sectional view taken along the line BB of FIG. 2, and FIG. Here, the rubber sheet 1 used in the present invention is a wide sheet having a width of about 2 to 8 m and a length of about 10 to 100 m manufactured in a factory, and an end of the sheet piece 2 is formed along a longitudinal direction thereof. They are superposed at intervals, joined together via a cure tape 3 made of unvulcanized rubber or the like, and are joined elongated. The bonding portion 4 in the longitudinal direction of the rubber sheet has a shape in which the cure tape 3 flows out from the end of each sheet to the outside, and the bonding portion is gently raised and has no step.

The rubber sheet 1 is, for example, ethylene-propylene-
Terpolymer (EPT), butyl rubber (IIR) or EPT
Vulcanized rubber sheet made of a blend of NR and IIR, and its color tone is, for example, green, light green, gray or the like.

The rubber sheet 1 is laminated in a state where both ends in the width direction (indicated by an arrow A in the drawing) are overlapped with each other, and is bonded to each other with an adhesive layer 5 such as an adhesive or an adhesive tape interposed therebetween. At the joint 6 in the sheet width direction, a locking member 8 such as an anchor pin is inserted into the base 10 from the through hole 9 at the lower sheet end 7 in contact with the base 10 having a gradient of about 2 to 3 degrees. Further, the upper sheet end 11 covers the head of the locking member 8, and the locking member 8 is not exposed on the surface. Although such joint portions 6 in the sheet width direction are provided at regular intervals along the longitudinal direction of the rubber sheet 1,
The position of the locking member 8 is preferably a joint 4 in the longitudinal direction of the sheet having a large strength, so that the tear resistance of the rubber sheet 1 is not reduced.

Further, the joint 6 in the adjacent sheet width direction has the same structure as described above. However, one end in the sheet width direction is located on the lower side in contact with the base, and the other end is located on the upper side. This is alternately repeated along the sheet width direction. In this embodiment, the joint 6 may be installed such that the end surface 12 of the upper sheet edge of the joint 6 in the sheet width direction with respect to the direction in which the ball flies (the arrow in the drawing) does not face this. Preferably, even if the ball abuts the joint 6, the upper sheet end 11 is not damaged and peeled off.

It should be noted that the rubber sheet 1 used in the present invention is provided at one end in the width direction, and the through-hole 9 can be provided in advance at the joint 4 in the longitudinal direction of the sheet. You can also reinforce the surroundings.

[Effects] As described above, in the bonding structure of the rubber sheet in the golf driving range according to the present invention, the bonding portion of the rubber sheet is fixed to the base by the locking material, and this is evenly fixed to the base over a wide range of the rubber sheet. Therefore, even if the rubber sheet sags due to thermal expansion and the ball attempts to displace due to the ball colliding directly with the sheet, this can be sufficiently prevented, and wrinkles generated in the sheet can be prevented. In addition, if the end surface of the sheet end located at the upper side in the joint is not directed in the direction in which the ball flies, damage to the joint due to the ball, peeling of the sheet, and the like can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view of a bonding structure of a rubber sheet in a driving range according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1, FIG. 4 is a schematic view of a golf driving range, and FIG. 5 is a plan view of a conventional rubber sheet joining structure. DESCRIPTION OF SYMBOLS 1 ... Rubber sheet 2 ... Sheet piece 4 ... Sheet joint part in the sheet longitudinal direction 5 ... Adhesive layer 6 ... Sheet joint part in the sheet width direction 7 ... Lower sheet end part 8 ... Locking member 9 ... … Through hole 10 …… Base

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenzo Iwamoto 4-1-1-21 Hamazoedori, Nagata-ku, Kobe-shi, Hyogo Examiner at Mitsuboshi Belting Co., Ltd. Ryoji Kawashima

Claims (2)

(57) [Scope of request for utility model registration] 1. A rubber sheet joining structure in which a slope is provided on a base for a golf driving range, a rubber sheet is laid on the surface of the base, and ends of the rubber sheets are overlapped and joined. The ends of the sheet are joined together with an adhesive layer therebetween, and the locking material is inserted into the base through a through hole provided in the end of the sheet in contact with the base, and the end of the sheet is fixed to the base. A bonding structure of a rubber sheet in a driving range, which is characterized in that: 2. The bonding structure for a rubber sheet in a driving range according to claim 1, wherein the end surface of the upper end portion of the bonding structure of the rubber sheet is arranged so as not to face the direction in which the ball flies.