JPH0566121B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is characterized in that the upper ends of the left and right backpack bands of the backpack are positioned vertically on the back resting surface of the backpack according to the height of the person carrying the backpack. This invention relates to an attachment device for a shoulder strap that can be attached to a backpack.

<Prior Art> Such a backpack strap attachment device is known from Japanese Utility Model Application Publication No. 14460/1983. This known attachment device connects a vertical strip that is elongated in the vertical direction and is fixed to the center of the backrest surface of the backpack at its upper and lower ends, and the upper ends of the left and right backpack bands, It consists of a band attachment body that is slidable in the vertical direction, and the vertical strip plate has a plurality of adjustment holes spaced apart from each other in the vertical direction, and the band attachment body has a fixing hole that communicates with the adjustment holes in the vertical strip plate. have been established respectively.

<Problems to be Solved by the Invention> In order to move the band attachment body vertically along the vertical strip plate and fix it at a desired adjustment position, the fixing hole of the band attachment body must be communicated with the nearest adjustment hole of the vertical strip plate. Then pass a series of screws through the fixing hole and the adjustment hole, fit a nut into the tip of the screw protruding from either hole, and tighten. To change the adjustment position, perform the above operation in reverse, remove the screws from both holes, move the band attachment body to the desired adjustment position, and then repeat the above operation.

In that case, since the vertically long strip plate is fixed in contact with the back contact surface of the backpack, it is difficult to remove and insert the screws when the head of the screw is on the back contact surface of the backpack. Furthermore, when the nut is placed on the back contact side of the backpack, it is difficult to turn the nut to tighten or loosen it.

<Means for Solving the Problems> The present invention solves the problems of the conventional device described above and enables one-touch operation, and includes two parallel vertical rails 18, 18 in the vertical direction, A base plate 14 fixed to the backrest surface of the backpack 10, and left and right backpack bands 28, 28.
The two vertical rails 1 are provided with a connecting portion 25 connecting the upper end portions, and left and right horizontal cylindrical portions 32, 32 provided oppositely to each other on the left and right sides below the connecting portion.
8, 18, and is movable in the vertical direction on the base plate 14; and a U-shaped elastic member interposed on the slide plate 24 between the left and right horizontal cylindrical portions 32 and 32. The two vertical rails 18, 18 of the base plate have left and right engagement recesses 20 spaced apart from each other in the vertical direction on opposing surfaces thereof.
are provided opposite to each other, and the left and right legs 34, 34 of the U-shaped elastic piece 30 are provided with holes that pass through the horizontal cylindrical portions 32, 32 and into the left and right engagement recesses 20, 20 of the two vertical rails 18, 18. It is characterized in that the engaging rods 35, 35 that protrude are provided facing outward.

<Embodiment> In the illustrated embodiment, reference numeral 10 indicates a backpack, 12 indicates a backpack strap attaching device, and 14 indicates a base plate thereof. The base plate 14 is made of urethane resin and molded into a thin plate shape, and in this embodiment, the left and right sides are sewn 16 and fixed to the back contact surface of the backpack. The base plate is provided with two parallel vertical rails 18, 18 in the vertical direction. Vertical rails 18, 18
In this embodiment, the guide grooves 17 have an inverted L-shaped cross section facing each other, and a guide groove 17 is formed between them and the base plate. Engagement recesses 20 are provided above the guide groove 17, that is, on the opposing lateral protrusions of the vertical rails 18, 18, with an interval maintained in the vertical direction.

24 is a slide plate, and 30 is a U-shaped elastic piece, both of which are molded from plastic. Slide plate 2
4 engages both side edges with the guide grooves 17, 17 of the vertical rails 18, 18, and can slide vertically on the base plate 14. A boomerang-shaped connecting part 25 that extends left and right beyond the vertical rails 18, 18 is provided at the upper end of this slide plate 24. The upper end of the bag is passed through and the shoulder strap is connected to it.

Further, the slide plate 24 is provided with left and right horizontal cylindrical portions 32, 32 on the left and right sides below the connecting portion 25.

In this embodiment, the U-shaped elastic piece 30 is attached to the left and right legs 3.
It is placed on the slide plate 24 with the legs 4 and 34 facing downward and the outer surfaces of the legs 34 and 34 in contact with the opposing surfaces of the horizontally oriented cylindrical parts 32 and 32 in an open state. Each of the legs 34, 34 has an engaging rod 3 that passes through each horizontally oriented cylindrical portion 32, 32 and enters the opposing engaging recesses 20, 20 of the vertical rails 18, 18.
5 and 35 are provided facing outward.

Therefore, by inserting the engaging rods 35, 35 on the left and right legs 34, 34 of the U-shaped elastic piece into any pair of opposing engaging recesses 20, 20 of the vertical rails 18, 18, the slide plate 24 is fixed to the base plate 14, and a connecting portion 25 on a sliding plate that connects the upper ends of the left and right backpack bands 28, 28 can be brought to a predetermined adjustment position.

In addition, if the person carrying the backpack changes and the adjustment position is to be changed to a different adjustment position, pinch the ends of the left and right legs 34, 34 of the U-shaped elastic flat with your fingers and bend them inward, thereby engaging them. Remove the rods 35, 35 from the engagement recesses 20, 20 of the vertical rails, and while keeping this state, slide the slide plate 24 up or down along the vertical rails 18, 18 to set the connecting portion 25 to the desired position. , the left and right legs 3 are inserted so that the engagement rods 35, 35 enter the nearest pair of opposing engagement recesses 20, 20.
Remove your finger from 4 and 34. This allows the connecting portion 25 on the slide plate that connects the upper ends of the left and right backpack bands to different adjustment positions.

The base plate may be fixed to the back contact surface of the backpack by other means than sewing, such as riveting.

<Effects of the Invention> As is clear from the above, according to the present invention, the engaging rods 35, 35 protruding outward from the left and right legs 34, 34 of the U-shaped elastic piece are connected to the left and right horizontal cylindrical portions of the slide plate. 32, 32, a U-shaped elastic piece 30 is attached to the slide plate 24 between the horizontally oriented cylinder parts, and two parallel vertical rails 18 in the vertical direction of the base plate 14 are fixed to the back contact surface of the backpack. 18, the engaging rod 3 of the left and right legs 34, 34 of the U-shaped elastic piece protruding from the horizontal cylindrical portion is attached to one of the plurality of pairs of opposing engaging recesses 20, 20 that are spaced apart from each other in the vertical direction.
5 and 35, thereby bringing the connecting part 25 of the slide plate that connects the upper end of the backpack band to the predetermined adjustment position, making it easy to operate and changing the adjustment position with a single touch. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the backpack strap attachment device attached to the backpack, FIG. 2 is a front view of the same, and FIG. 3 is a bottom view of FIG. 2 as viewed from below. In the figure, 10 is a backpack, 12 is a backpack attachment device, 14 is a base plate, 18 is a vertical rail, 20 is an engagement recess, 24 is a slide plate, 25 is a band connecting part, 28 is a backpack band, and 30 is a U
32 is a horizontal cylinder part, 34 is a leg of the U-shaped elastic piece, and 35 is an engaging rod.

Claims (1)

[Claims] 1 Two parallel vertical rails 18, 18 in the vertical direction
A base plate 14 fixed to the backrest surface of the backpack 10, left and right backpack bands 28,
28, and left and right horizontal cylindrical parts 32, 32 provided opposite to each other on the left and right sides below the connecting part, and can slide on the two vertical rails 18, 18. The slide plate 24 is engaged with the slide plate 24 and is movable in the vertical direction on the base plate 14, and the slide plate 24 is moved between the left and right horizontal cylindrical parts 32 and 32.
It consists of a U-shaped elastic piece 30 interposed above, and left and right engagement recesses 0 are provided on the opposing surfaces of the two vertical rails 18, 18 of the base plate with a distance maintained in the vertical direction.
are provided opposite to each other, and the left and right legs 34, 34 of the U-shaped elastic piece 30 are provided with holes that pass through the horizontal cylindrical portions 32, 32 and into the left and right engagement recesses 20, 20 of the two vertical rails 18, 18. This backpack attachment device is characterized in that engaging pieces 35, 35 that protrude are provided facing outward.