JP3153704U - Protective bumper to prevent accidents involving heavy machinery - Google Patents

Abstract

[PROBLEMS] To provide a protective bumper for preventing accidents involving heavy machinery, which can prevent such accidents in advance, in view of the seriousness of conventional accidents involving heavy machinery due to endless tracks. A bumper 5 is detachably mounted so as to cover at least a rear surface and a side surface of a rear side of an endless track 2 of a heavy machinery 1, and the bumper 5 is substantially U-shaped or substantially U-shaped in a plan view. And a mounting portion 6 to the heavy machinery 1 is provided inside the left and right sides. [Selection] Figure 2

Description

  The present invention relates to a protective bumper for preventing an entrainment accident caused by a caterpillar (registered trademark, hereinafter the same) of civil engineering, a construction machine, etc. (hereinafter referred to as heavy machinery) used for civil engineering / construction work.

  Conventionally, many heavy machinery used for excavation and carrying in / out materials in civil engineering / construction work, etc. have used a caterpillar (see Patent Document 1).

  An endless track such as a caterpillar is effective when heavy machinery is used on uneven ground such as ground, road surface, and sloping ground where there is a large difference in elevation, but on narrow roads such as sewer pipe construction and gas pipe construction on general roads In recent years, there have been many accidents involving workers and general passers-by on an endless track, such as when heavy machinery is used at a construction site, or when heavy machinery is moved to another remote construction site. Yes.

  In other words, the rear side of heavy machinery is different from the front side where the operator is working, and it is difficult for the operator's eyes to reach. was there. In addition, not only people but also obstacles such as walls and buildings on the reverse side were not noticed, and there was a case where they moved backwards and destroyed them.

  The cause is thought to be because the rear side of the endless track is greatly exposed. In order to prevent such an accident, some large power shovels are equipped with a warning device that notifies the operator with a buzzer or a lamp when a person approaches the back of the endless track.

  However, if an alarm device for preventing such an accident is attached to a heavy machine such as a small bulldozer or a power shovel, the manufacturing cost becomes high, so such an alarm device is currently installed. There are few that are.

  At the present time, no method or apparatus has been proposed for preventing contact or entrainment accidents due to an endless track of heavy machinery by a method other than an alarm device.

JP 2002-294735 A

  The present invention provides a protective bumper for preventing accidents involving heavy machinery, which can prevent such accidents in advance, in view of the seriousness of contact and entrainment accidents caused by endless tracks of conventional heavy machinery. Is the subject.

  The configuration of the protective bumper of the present invention made for the purpose of solving the above problems is a bumper that is detachably mounted so as to cover at least the rear surface and the side surface of the rear side of the endless track of heavy machinery, It is formed in a substantially U shape or U shape in a plan view, and has a mounting portion for mounting on the heavy machinery inside the left and right sides.

  In the above-described configuration, the present invention bumper may be configured to be mounted on the left and right endless tracks, or to be mounted across the left and right endless tracks. Further, the bumper may include a member that covers the upper surface side of the endless track.

  Note that the bumper is preferably formed of a lightweight belt-like or plate-like member. In addition, as the band-like or plate-like member, a metal plate, a plastic plate, a wooden plate, a cardboard plate, a cardboard plate, or the like, or those obtained by laminating these members alone or in combination are used. Can do.

  Further, the mounting part of the present invention bumper to heavy machinery is a mounting plate that is detachably attached to the inner surface of both sides of the bumper, and is connected to a bolt rod or nut provided on the heavy machinery side. A plate or a mounting plate that is detachably attached to the inner surfaces of both sides of the bumper, and is formed by a mounting plate that is attached to heavy machinery by a magnet. In this invention, it is good also as a mounting part of the structure which used either of the said mounting plates or these together.

  The protective bumper for preventing accidents involving heavy machinery of the present invention can be easily attached to heavy machinery such as small bulldozers and power shovels as a retrofit. Since the accident can be prevented, the practical value is extremely high.

The side view of an example of the excavator equipped with this invention protection bumper. The top view which expanded the rear part side of the excavator shown in FIG. The perspective view of an example of the mounting plate for mounting | wearing heavy machinery with this invention protection bumper. The enlarged plan view of the principal part which shows the state which mounted | wore the endless track of heavy machinery with this invention protection bumper with the mounting plate shown in FIG.

  In the following, a protective bumper for preventing accidents involving heavy machinery as an example of the present invention will be described with reference to the drawings.

  In FIG. 1, 1 is an example of an excavator equipped with a protective bumper of the present invention, 2 is a left and right endless track of the excavator 1, 2a is a caterpillar of an endless track 2 (including a rubber shoe type caterpillar, the same applies hereinafter), 2b is a drive wheel. Reference numeral 3 denotes a driver's seat, and a lifting boom 4 having a working machine such as a bucket (not shown) at the tip is attached to the front side.

  Reference numeral 5 denotes a protective bumper for preventing accidents according to an example of the present invention mounted on the rear side of the left and right endless tracks 2, and reference numeral 6 denotes a mounting portion of the bumper 5 on the endless track 2. As illustrated in FIG. 2, the protective bumper 5 for preventing accidents is formed by bending a lightweight belt-like plate member into a substantially U-shape when viewed from above, and the belt-like plate member may be a metal plate. , A plastic plate, a wooden plate, a cardboard plate, a corrugated cardboard plate or the like, or a laminate of at least two of these plate members. The protective bumper 5 may have a substantially U-shape in plan view in addition to a substantially U-shape in plan view. Further, it may be formed by joining three or more plate members, or may be formed in a bellows shape at the center (a portion facing the rear surface of the endless track 2).

  As the metal plate, a light metal plate such as an aluminum plate, a thin iron plate, or an appropriate alloy plate can be used. The metal plate may be punched or meshed for weight reduction. As the plastic plate, any resin plate such as polystyrene, polypropylene, polyester, nylon, etc. can be used as long as it is lightweight, and even a plastic plate having a large number of holes for weight reduction. Good. Moreover, as a plastic board, foamed plastic boards, such as a polystyrene foam (polystyrene foam), AS foam, ABS foam, a polyethylene foam, a polypropylene foam, can be used. The plastic plate may be a laminate of two or more.

  As the wooden board, a thin and light plywood board or a plywood board can be used. In addition, a cardboard board and a cardboard board can be used as long as the shape can be maintained. Further, the surface of the cardboard board or cardboard board may be laminated with a plastic film for reinforcement or fire prevention.

  The accident-preventing protective bumper 5 of the present invention is mounted so that the lower end of the protective bumper 5 is positioned slightly above the lower caterpillar 2a (the side in contact with the ground) as shown in FIG. To do. Here, the lower end portion of the bumper 5 and the ground are set to have a width of about 4 to 10 cm, and the upper end portion is mounted so as to be equal to or slightly higher than the upper caterpillar 2a.

  The size of the protective bumper 5 is adjusted to the vertical width of the endless track 2, for example, a belt-like plate member having a vertical width of 35 cm and a length of 1.2 m, a front width of 35 cm, and one side (inside) of the left and right side sides of 30 cm, The other side (outer side) is formed to be bent in a substantially U shape when viewed from the plane at 55 cm. Further, on both the left and right sides, although not shown, mounting holes for the mounting portion 6 for mounting the bumper 5 on the endless track 2 are formed.

  Next, the configuration of the mounting portion 6 for mounting the present invention protective bumper 5 for preventing accidents on the endless track 2 and a mounting method on the endless track 2 will be described.

  The protective bumper 5 for preventing accidents is mounted so as to surround the rear surface and both side surfaces of the rear side of each of the left and right endless tracks 2 with a certain distance from the endless track 2 (see FIG. 2). In FIG. 2, the caterpillar 2 a on the left side in the drawing shows a state before the protective bumper 5 is attached. Although not shown, in the present invention, the outer surface of the left endless track 2 and the outer surface of the right endless track 2 and the rear surfaces of both the left and right endless tracks are surrounded by a single protective bumper, and the inner surfaces of the left and right endless tracks 2 and the protective bumper 5. It is good also as a structure which mounts | wears with a fixed space | interval.

  Although not shown, a plate-like member that covers the caterpillar 2a with a predetermined interval may be provided on the upper surface side of the accident-preventing protective bumper 5 (not shown). The distance between the endless track 2 and the bumper 5 is usually about 10 to 20 cm. However, there may be an interval of 10 cm or less or 20 cm or more depending on the size of heavy equipment to be mounted.

  As illustrated in FIG. 3, the mounting portion 6 has a configuration in which a step is provided near one end in the length direction of a horizontally long iron plate and is bent into a shallow crank shape when viewed from the plane. Mounting holes 6b and 6c for inserting bolt rods 8 (see the left caterpillar in FIG. 2) attached in advance on both sides of the rear part are inserted into mounting holes formed on both sides of the accident prevention protective bumper 5. The mounting portion mounting holes 7 for inserting the bolts 10 and 11 to be fixed are magnet mounting holes for fixing the magnet M disposed between the endless track 2 and the mounting portion 6. The material of the mounting portion 6 is preferably an iron plate when a magnet is used, but is not limited to an iron plate, and is a metal plate such as an aluminum plate, a brass plate, or a stainless plate, or polystyrene, polypropylene, polyester, nylon. Plastic plates such as polycarbonate and acrylic resin may be used.

  For mounting the protective bumper 5 on the excavator 1, the mounting portion 6 may be attached to the endless track 2 in advance, and then the protective bumper 5 may be attached to the mounting portion 6. Here, the mounting portion 6 is first attached to the protective bumper 5 here. A case where the one attached to the endless track 2 is mounted will be described. First, the bolts 10 and 11 are inserted into the mounting holes 6b and 6c of the mounting part 6 and the nuts 10a and 11a corresponding to the bolts 10 and 11 are screwed, respectively, and then inserted into the mounting holes of the protective bumper 5, Furthermore, the nuts 10b and 11b are screwed together to temporarily fix the mounting portion 6. In this state, the mounting hole 6 a of the mounting portion 6 is externally fitted to the bolt rod 8 of the endless track 2, and the mounting portion 6 is fixed by the nut 9. In addition, when fixing, the position of the temporarily fixed mounting part 6 and the protective bumper 5 is finely adjusted to fix them.

  When the mounted protective bumper 5 is damaged, the nuts 10b and 11b can be removed and replaced easily. Further, when the excavator 1 is not used for a long time, the protective bumper 5 can be removed.

  In the present invention, there is a case where the magnet M is disposed between the mounting portion 6 and the endless track 2 and the protective bumper 5 is mounted and fixed to the endless track 2 by magnetic force. It is preferable to use it together with the connection fixing according to 9.

  The configuration of the protective bumper for preventing accidents of the present invention is as described above, but the protective bumper for preventing accidents of the present invention is not limited to the above configuration. For example, the mounting portion 6 may be integrated with the protective bumper 5 in advance, and the protective bumper 5 may be mounted by simply connecting and fixing the bolt rod 8 and the nut 9 of the endless track 2.

  The protection bumper for preventing accidents involving the present invention includes not only heavy machinery to be sold in the future, but also heavy machinery such as small bulldozers and power shovels that are already on the market and are actually used. Since it can be easily installed simply by remodeling a part of the endless track of heavy machinery, it is possible to prevent accidents involving people being caught in the caterpillar.

DESCRIPTION OF SYMBOLS 1 Excavator 2 Endless track 2a Caterpillar 2b Driving wheel 3 Driver's seat 4 Lifting boom 5 Accident prevention protective bumper 6 Mounting part 7 Magnet mounting hole 8 Bolt rod 9 Nut 10, 11 Bolt

Claims (8)

  A bumper that is detachably mounted so as to cover at least the rear surface and the side surface of the rear side of a heavy machinery endless track, and the bumper is formed in a substantially U shape or a substantially U shape in plan view, A protective bumper for preventing accidents involving heavy machinery, characterized in that a mounting portion for the heavy machinery is provided inside.   The bumper is a protective bumper for preventing a wrapping accident according to claim 1, which is mounted on the left and right endless tracks.   The protective bumper according to claim 1, wherein the bumper is mounted across an endless track on both the left and right sides.   The bumper according to any one of claims 1 to 3, wherein the bumper includes a member that covers an upper surface side of the endless track.   The bumper is a protective bumper for preventing an accident from being caught, according to any one of claims 1 to 4, wherein the bumper is formed of a lightweight belt-like or plate-like member.   6. The winding according to claim 5, wherein the belt-like or plate-like member is formed of any one of a metal plate, a plastic plate, a wooden plate, a cardboard plate, a corrugated cardboard, or the like, or these members are laminated alone or in combination. Protective bumper for preventing accidents.   The mounting part is a mounting plate that is detachably mounted on the inner surface side of both sides of the bumper, and is a mounting plate that is connected to a bolt rod or nut provided on the heavy machinery side. Protective bumper for preventing accidents. 8. The protective bumper for preventing accidents in wrapping accidents according to any one of claims 1 to 7, wherein the mounting portion is a mounting plate that is detachably mounted on the inner surface side of both sides of the bumper and is mounted on a heavy machine by a magnet. .

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