JPH0713224U - Waist part of the rucksack - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lumbar back portion of a rucksack having elasticity and cushioning properties, capable of relieving a pressing force on the lower back portion, having good air permeability, and having a good shape. [Structure] The waist support portion 1 of the present invention comprises a small grid-like elastic sheet 2 formed by fine wires biaxially stretched and molded from a hard synthetic resin, and a thick-walled foamed plastic layer placed inside the elastic sheet 2. The sheet 3 and the mesh sheet 4 laminated on the outer side of the sheet 3 are laminated. Then, the filament of the mesh sheet 4 and the elastic sheet 2 are integrated by adhesion or the like. Such a waist support portion 1 is fixed to the waist portion of the back support member 5 by a method such as sewing or adhesion, and the back support member 5 is attached to the back cloth 7 of the rucksack 6 or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lumbar pad of a rucksack having appropriate elasticity and cushioning properties, high strength, and good air permeability.

[0002]

[Prior art]

 Generally, when carrying a backpack, it is said that the ideal way to carry the backpack is to carry it so that the lower end of the backrest hits the back waist of the body, in order to reduce the pressing force on the waist. In addition, a waist cushion pad with a high cushioning property is attached to the part of the rucksack that touches the waist. As such a waist pad, there has been conventionally used a structure in which a plate-shaped cushioning member such as a foamed plastic plate is wrapped with a synthetic fiber cloth such as canvas.

[0003]

[Problems to be solved by the device]

 However, such a conventional lumbar pad has a problem that the strength is not sufficient and the shape is likely to collapse due to stretching and sag, and the water permeability and breathability are poor, and the lumbar region becomes sweaty and stuffy. It was

The present invention has been made in order to solve these problems, and has elasticity and cushioning property, can relieve the pressing force on the lower back part, and has good breathability and shape retention. The purpose is to provide the lumbar region of the backpack.

[0005]

[Means for Solving the Problems]

 The backrest of the rucksack of the present invention is constructed by stacking a plate-shaped cushioning member on the inside of a small square-shaped elastic sheet formed by a thin biaxially stretched wire made of hard synthetic resin. It is characterized in that a breathable net-like sheet is laminated on the outer side of the above and laminated, and this laminated body is laterally arranged and fixed to the lower part of the back support part of the rucksack.

[0006]

[Action]

 In the lumbar region of the rucksack of the present invention, a small grid-like elastic sheet formed of fine wires biaxially stretch-molded with a hard synthetic resin is used as a core material. Since it is covered with a breathable mesh sheet, it is lightweight, has high strength, does not easily stretch and lose its shape, and has a good feel to the skin. In addition, on both sides of the elastic sheet formed by biaxial stretching, the air is circulated very well through the small squares formed on the entire surface, and the waist does not get damp due to sweating or the like.

[0007] Furthermore, since this elastic sheet has elasticity and a plate-shaped cushioning member is laid over the elastic sheet, it has sufficient elasticity and flexibility and fits well on the waist of the human body. , The backpack (load) pressure on the lumbar region and the impact are alleviated.

[0008] When the extending direction of the thin wires in the elastic sheet is different from the direction of arranging the fibers of the synthetic fiber mesh sheet arranged outside, even if the mesh sheet stretches, Since the gaps do not overlap and good air permeability is maintained, it is more effective in eliminating the stuffiness of the waist.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a waist rest according to the present invention, FIG. 2 is a front view showing a state where the waist rest of the embodiment is mounted on a backpack, and FIG. 3 is a waist rest of the embodiment. FIG. 3 is a perspective view showing the structure of FIG.

In the drawing, reference numeral 1 indicates a waist portion, which, as shown in FIG. 3, has an elastic sheet 2 in the form of small squares formed by fine wires biaxially stretch-molded with a hard synthetic resin. , A thick-walled sheet 3 made of foamed polyurethane, and a mesh-like mesh-like sheet 4 woven and woven in the form of a fibrous body, which are stacked on the inside of the sheet 3 and are crimped, It is integrally formed by sewing, adhesion or the like. Here, the small square-shaped elastic sheet 2 is formed by, for example, crossing a biaxially stretched bidirectional thin line group extruded from a hard synthetic resin material so as to form a fine square of about 1 mm on a side. The cross section is formed by directly heating and fusing. In this case, the arrangement direction of the filaments in the reticulated sheet 4 is the longitudinal (length) lateral (width) direction, whereas the extending arrangement direction of the thin wire group in the elastic sheet 2 is the longitudinal and lateral directions. It can be an oblique direction that is inclined with respect to the direction.

Then, such a waist support part 1 is fixed to a lower part (a waist part) of a back support member 5 shown below by a method such as sewing or adhesion, and further such a back support member 5 is attached to the backpack member. It is attached to the back cloth 7 or the like of the ku 6. That is, the backrest member 5 is a frame body bent outwardly (backward side) formed by combining and fixing metal plates having elasticity (elasticity) such as steel in the vertical and horizontal directions. 8 and a back support sheet 10 having a synthetic fiber mesh body (mesh) 9 stretched so as to form a gap between the frame body 8 and an upper end portion of the back support sheet 10. It is fixed to the upper end of the frame 8 and the lower end is sewn to a waist belt (not shown) such as a synthetic fiber cloth stretched laterally on the lower part of the frame 8. In FIG. 2, reference numeral 11 indicates a backpack band of a rucksack, and reference numeral 12 indicates a waist belt which is wound around the waist and abdomen to fix the waist support 1.

In the waist rest portion 1 of the embodiment configured as described above, a small square-shaped elastic sheet 2 formed of fine wires biaxially stretch-molded with a hard synthetic resin is used as a core material. Since the elastic sheet 2 is lightweight, tough, hard to stretch, and excellent in shape retention, the waist portion 1 that is light and has high strength and is hard to lose its shape is formed. Further, since the small-sized elastic sheet 2 is swollen and compressed at the intersections of the fine wire groups in the two directions to form a complex intersecting gap, air circulation on both sides is extremely good. To be done. Then, this sheet is laminated by a net-like sheet 4 having a breathable strip shape. More preferably, the extending and arranging direction of the thin wire group of the elastic sheet 2 is oblique to the arranging direction of the filamentous body in the reticulated sheet 4, so that even if the reticulated sheet 4 extends, the gap between the two is increased. Do not overlap, and good air permeability is maintained. Therefore, the lumbar region does not get damp due to sweating.

Further, since the elastic sheet 2 has an appropriate elasticity and the thick sheet 3 is laminated on the inner side thereof, the elastic sheet 2 is rich in elasticity and flexibility and fits well on the waist of the human body. Alleviate the pressure and impact on the lower back of the load. Further, since the frame body 8 of the backrest member 5 is formed by being bent outward (on the back side) by the metal plate, and a gap is provided between the frame body 8 and the waist support portion 1, it is possible to prevent vibrations during walking. The impact is not directly applied to the hip pad 1, and the waist fatigue and injury are prevented. Further, in the backrest member 5, a breathable backrest sheet 10 having a synthetic fiber mesh (mesh) 9 on the frame 8 is stretched so as to form a gap. Therefore, stuffiness of the back due to sweating is also prevented.

It should be noted that in the above embodiments, the waist support part 1 is provided below the back support member 5 including the frame body 8 made of a metal plate and the back support sheet 10 to which the mesh body 9 is attached. Although an example in which the backrest member 5 is fixed and further attached to the back cloth 7 of the rucksack 6 or the like has been described, the method of attaching the waist support portion 1 of the present invention is not limited to this, and As shown in, the back cloth 7 of the rucksack 6 may be directly fixed to the lower portion (waist portion).

Further, as a waist support belt which is stretched on the lower portion of the frame body 8 for attaching the back support sheet 10, instead of synthetic fiber cloth or the like, similar to the waist support portion 1, small squares are formed. Alternatively, the elastic sheet 2 and the mesh sheet 4 may be laminated. That is, as shown in FIG. 5 and FIG. 6, the waist belt 13 is formed on the outer side of the elastic sheet 2 having a small grid pattern formed by fine wires biaxially stretch-molded with a hard synthetic resin. It is also possible to have a structure in which the mesh sheets 4 woven and woven in a mesh shape are stacked and laminated and integrally sewn. In addition, reference numeral 14 in the drawing indicates a mounting ring to the frame body 8.

The waist support belt 13 having such a structure is lightweight, tough, has a sufficient elasticity such that it is difficult to stretch, and has a good breathability by itself, so that the waist support part 1 having a further excellent breathability is provided. It is formed.

[0017]

[Effect of device]

 As described above, the lumbar part of the rucksack of the present invention uses the elastic sheet-shaped elastic sheet formed by the thin wire biaxially stretch-molded with the hard synthetic resin as the core material. Since it is laminated with a breathable mesh sheet together with the flexible member, it is lightweight and tough, does not lose its shape, and feels good to the touch. In addition, the breathability is good and the lumbar region does not get damp due to perspiration. In addition, it has good elasticity and flexibility and fits well on the lower back of the human body, and reduces the pressure and impact of the backpack (load) on the lower back, thus preventing fatigue and damage to the lower back.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a waist portion of a backpack of the present invention.

FIG. 2 is a front view showing a state in which the waist rest portion of the embodiment is attached to a backpack.

FIG. 3 is an exploded perspective view showing the structure of the waist rest portion of the embodiment.

FIG. 4 is a front view showing a state where the lower back portion of the present invention is attached to another rucksack.

FIG. 5 is a backrest member used in the embodiment of the present invention,
The top view which shows the waist support belt for attaching a back support seat.

FIG. 6 is an exploded perspective view showing the structure of the waist belt shown in FIG.

[Explanation of symbols]

 1 ………… Lump support part 2 ………… Small square elastic sheet 3 ………… Thick sheet 4 ………… mesh sheet 5 ………… Back support member 6 ………… Backpack 7 ………… Back cloth 8 ………… Frame 9 ………… Synthetic fiber mesh (mesh) 10 ………… Backrest seat 11 ………… Bearing band 12 ………… Waist belt 13 ………… Waist belt 14 ………… Mounting ring

Claims (1)

[Scope of utility model registration request] 1. An inner side of a small square-shaped elastic sheet formed by a fine wire biaxially stretch-molded of a hard synthetic resin,
The plate-shaped cushioning members are stacked, and the breathable synthetic fiber mesh sheet is further stacked on the outer side of these, and the stacked body is laterally arranged and fixed to the lower part of the back portion of the rucksack. Waist part of the rucksack characterized by being.