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Knapsack

A backpack and strap technology, applied in the field of backpacks, can solve the problems of easy strain on shoulders, hidden safety hazards, inconvenience in use, etc., and achieve the effects of not easily slipping off and reducing impact force.

Inactive Publication Date: 2007-03-21
胡润富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] These existing knapsacks, because there is no obvious improvement in structural design, therefore, still inevitably have some disadvantages
For example, without the shock absorption function, the user's shoulders are prone to strain when used for a long time; When the schoolbag is used, it cannot indicate the weight of the bag, and there is no overweight warning function, etc.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: As shown in Figure 1, the backpack of the present invention includes a bag body 1, a strap 2 and a waist belt 3; it also includes a shock absorber 4, a pressure sensor 5, a weight display and overweight warning circuit 6, an air cushion 7, Adjustable handle 8, spine protection cushion 9 and retractor 10. The shock absorber 4 is arranged on the top of the bag body 1 and is suitable for connecting the strap 2. As shown in Figure 2, the shock absorber 4 includes a box body with a spring inside, and a plug-in block provided with a plug; the box body is connected to the On the package body 1, the insert block is connected with the strap 2; on the wall of the box body, there is a strip-shaped socket corresponding to the plug on the insert block, the lower part of the socket is lower than the bottom of the spring, and the upper part of the socket extends to the box There is a spring inside the body; when the plug is inserted into the box, the socket can hold the ...

Embodiment 2

[0026] Embodiment 2: The main structure of the backpack described in this embodiment is the same as that in Embodiment 1, except that a shock absorber 4 is provided at the lower part of the bag body 1 which is suitable for connecting the waist belt 3 . As shown in Figure 5, the shock absorber 4 is a box body with a spring inside, and a plug is arranged on one side of the retractor 10; The strip-shaped socket, the bottom of the socket is lower than the bottom of the spring, and the top of the socket extends to the position where the spring is housed inside the box body. When the plug on the retractor 10 is inserted into the socket, the socket can hold the plug, and the plug just abuts against the bottom of the spring. When the belt connected to the retractor 10 pulls the retractor 10 upwards, the plug presses the spring upwards along the socket to slow down the impact on the user.

Embodiment 3

[0027] Embodiment 3: The main structure of the backpack described in this embodiment is the same as that in Embodiment 1 or Embodiment 2, the difference is that the shock absorber connected to the strap 2 is a box body with a spring inside. A transparent window is provided on the side wall of the box, a scale indicating the weight is provided on the transparent window, and a pointer is provided on the spring corresponding to the transparent window. Similar to the spring scale, the weight of the backpack is indicated by the amount of compression of the spring inside the box.

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Abstract

The knapsack includes a knapsack body, back straps, waistbands and a vibration damper, as well as a pressure sensor, a weight displaying and overweight warning circuit, an air cushion, an adjustable handle, a ridge protecting damping pad and a re-winder. The knapsack of the present invention can reduce the impact force on the user and the force on the waist and ridge, has less slipping of the back straps, and is permeable and suitable for heat dissipation. The knapsack has also weight display and overweight warning. It is suitable for use as school bag and traveling bag.

Description

technical field [0001] The invention relates to a backpack, in particular to a backpack which can be used as a school bag or a travel bag. Background technique [0002] A backpack is one of the most common daily necessities, and it generally consists of a bag body and straps. In order to be convenient and comfortable to use, some backpacks add pads to the parts where the straps contact the shoulders of people, and some backpacks add waist belts to the bag body. In order to further improve the function of backpacks and improve the comfort of backpacks, people have invented backpacks with various uses. Patent document CN2349867Y discloses a multifunctional backpack, which includes a bag body and a bag belt. It is characterized in that a light-emitting circuit that can automatically send out a reminder light signal to the outside is fixed on the bag body. The circuit consists of a DC power supply, a switch, and a light-emitting circuit. The control unit, the electronic light-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A45C15/00G08B21/18F16F7/00
Inventor 胡润富
Owner 胡润富
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