JPH0430912Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a backpack strap holder for a backpack rack for a backpack-type working machine.

BACKGROUND TECHNOLOGY As shown in Fig. 2, the backpack strap holder of a backpack rack for a backpack-type work machine, etc., is made of a round bar at the center of the upper end of the backpack rack 1 and projects upward in a chevron shape. The knapsack band receivers 2 are fixedly connected by welding or the like to form band receiver parts 3 and 4 that slope diagonally downward to the left and right on the knapsack band receivers 2, and the upper end portions of the pair of left and right knapsack bands 5 are formed. 6 is passed around the band receiving portions 3 and 4 of the receiver 2 and locked in a ring shape with a fastener 7, and the lower end portion 8 of each backpack band 5 is connected to the backpack rack 1 by a connecting ring 9.
It is configured such that it is locked on both sides of the lower end.

Problems to be Solved by the Invention In the structure of the conventional knapsack band holder 2, the upper end portion 6 of the knapsack band 5 shifts along the band receiving parts 3 and 4 of the holder 2 during use, causing the band 5 to shift. Because of this, the fairly heavy load of the backpack rack 1 on which devices such as an internal combustion engine and a blower are mounted is concentrated on a part of the band 5, causing wear and tear, and the band 5 does not hit the worker's shoulder properly. In addition, vibrations emitted from power machines such as internal combustion engines and blowers mounted on the backpack rack 1 can be transmitted directly and strongly to the shoulders of the worker through the support bracket 2 and the backpack band 5. There were drawbacks such as the transmission of information and discomfort to the workers.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to provide a backpack strap holder for a backpack rack that is simple in structure and convenient to use.

Means for Solving the Problems According to the present invention, the backpack band receiving metal fitting provided on the backpack rack and locking the upper end portion of the backpack band is such that the backpack band receiving metal fitting is connected to the backpack rack at the lower end. a first metal fitting part that slopes inward and extends upward; a second metal fitting part that continues to the first metal fitting part via a first bending part and extends upward and slopes outward; and a third metal fitting part that is continuous through the second bent part and extends upward while being inclined inwardly, and the upper end part of the backpack band is turned around the third metal fitting part of the backpack band receiving metal part to form a ring shape. It is characterized by a configuration in which it is locked.

Function: Therefore, if the backpack band tries to move along the third metal fitting part of the backpack band holder during use,
This displacement movement is prevented by the second bent portion of the backpack strap holder, and the vibration transmitted from the backpack rack to the backpack band via the backpack strap holder is prevented by the first bent portion and the second bent portion of the backpack strap holder. A large amount of water is absorbed at the bend.

Embodiments Next, the present invention will be described based on embodiments of the drawings.

An embodiment of the present invention is shown in FIG. 1, and a backpack rack 10 of this embodiment is used for a backpack-type working machine such as a backpack-type chemical sprayer, and includes:
It is designed to mount fairly heavy equipment such as an internal combustion engine, a blower, and a chemical tank (not shown). The backpack rack 10 is made of a pipe material such as a steel pipe, and is provided with a backpack band holder 12 at the center of its upper end portion 11. The backpack band holder 12
is formed from a steel bar or the like into a shape that is bent approximately symmetrically on the left and right as will be described later, and is provided so as to extend upward from the upper end portion 11 of the backpack rack 10.

The backpack band holder 12 is fixedly connected to the upper end portion 11 of the backpack rack 10 at its lower end portions 13 and 14 on both sides by welding or the like. The band receiving fitting 12 has the lower end portions 13 and 14.
It has a pair of left and right first metal parts 15 and 16 extending upward from the base, and the first metal parts 15 and 16 are
They are formed to slope inwardly toward each other so that the spacing between them gradually decreases upwardly. Further, the band receiving fitting 12 is bent at first bending portions 17 and 18 formed at the upper end portions of the first fitting portions 15 and 16 to form a second fitting portion 1.
9 and 20 are integrally formed. The second metal parts 19 and 20 are formed to slope outwardly away from each other so that the distance therebetween gradually increases upward.

Further, the band receiving fitting 12 is bent again at second bent portions 21 and 22 formed at the upper ends of the second fitting parts 19 and 20 to integrally form third fitting parts 23 and 24. There is. The third metal parts 23 and 24 are formed to slope inwardly toward each other so that the distance therebetween gradually decreases upward, and their upper ends are joined together to form the band receiver. A top portion 25 of the metal fitting 12 is formed. The second metal fitting portions 19, 20 and the third metal fitting portions 23, 24 are bent such that the included angle α at the second bent portions 21, 22 between them forms an acute angle.

A pair of backpack bands 26 worn by the worker on both shoulders
The upper end portion 27 thereof is hung on the third metal fitting portions 23 and 24 of the band receiving metal fitting 12, respectively.
The upper end portion 27 of the backpack band 26 is looped around each of the third metal parts 23 and 24 of the band receiving metal fitting 12 with a fastener 28.

According to the present invention, there is no need to worry so much about misalignment of the backpack band 26, so the loop at the upper end portion 27 can be made relatively large, improving the durability of the backpack band 26, and The width corresponding to the thickness of the band holder 12 is large.

With such a configuration, the backpack band 26 can
Back strap holder 1 when in use or when the backpack rack is lowered
Even if the backpack band 26 tries to shift along the third metal parts 23 and 24 of
The second bent portions 21 and 22 of the shoulder strap 26 are prevented from shifting, making it difficult for the backpack band 26 to sink into the worker's shoulder, thereby alleviating the worker's fatigue. Furthermore, the vibrations transmitted from the device mounted on the backpack rack 10 to the worker through the backpack rack 10, the backpack strap holder 12, and the backpack 26 are transmitted to the first bent portion 17 of the backpack strap holder 12,
18 and the elasticity of the second bent portions 21 and 22, the vibrations are absorbed, and therefore the transmission of vibrations to the operator can be greatly reduced.

Effects of the invention With the configuration of the invention explained above, the invention prevents the backpack band from shifting, prevents the load from concentrating on a part of the backpack band, and transfers the backpack band to the shoulder of the worker. It has the following effects: it prevents the worker from getting wedged in, reducing worker fatigue, and greatly absorbs vibrations transmitted from the backpack rack to the worker, reducing discomfort to the worker.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment in which a backpack strap holder according to the present invention is provided on a backpack rack, and Fig. 2 is a perspective view of a conventional example in which a conventional backpack band holder is provided on a backpack rack. In both cases, only one side of the shoulder strap is shown). 10...Backpack rack, 12...Backpack band holder,
13, 14...lower end of backpack band holder, 1
5, 16...first metal fitting part, 17,18...first
Bent portion, 19, 20...Second metal fitting portion, 21,
22...Second bent part, 23, 24...Third metal fitting part, 26...Backpack band, 27...Upper end part of backpack band

Claims (1)

[Scope of utility model registration request] In a backpack strap holder that is provided on a backpack rack and locks an upper end portion of the backpack strap, the backpack strap receiver 12 is attached to the backpack rack 10 with a lower end portion 13,
first metal parts 15 and 16 connected at 14 and inclined inwardly and extending upward; and a second metal fitting connected to the first metal parts via first bent parts 17 and 18 and inclined outward and extending upward. Parts 19 and 20,
The second metal part has a third metal part 23, 24 which is continuous with the second metal part via the second bending parts 21, 22 and extends upward while being inclined inwardly, and the upper end part 27 of the backpack band 26 is connected to the backpack band. A backpack strap receiver for a backpack rack, characterized in that the receiver is turned around the third metal part of the receiver and locked in a ring shape.