CN107348655B - A kind of open air knapsack and its manufacture craft - Google Patents

A kind of open air knapsack and its manufacture craft Download PDF

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Publication number
CN107348655B
CN107348655B CN201710555321.1A CN201710555321A CN107348655B CN 107348655 B CN107348655 B CN 107348655B CN 201710555321 A CN201710555321 A CN 201710555321A CN 107348655 B CN107348655 B CN 107348655B
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CN
China
Prior art keywords
air cushion
shoulder
backboard
skeleton
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201710555321.1A
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Chinese (zh)
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CN107348655A (en
Inventor
连元桂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sevlae (fujian) Outdoor Goods Co Ltd
Original Assignee
Sevlae (fujian) Outdoor Goods Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sevlae (fujian) Outdoor Goods Co Ltd filed Critical Sevlae (fujian) Outdoor Goods Co Ltd
Priority to CN201710555321.1A priority Critical patent/CN107348655B/en
Publication of CN107348655A publication Critical patent/CN107348655A/en
Application granted granted Critical
Publication of CN107348655B publication Critical patent/CN107348655B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F3/047Sacks or packs carried on the body by means of two straps passing over the two shoulders with adjustable fastenings for the shoulder straps or waist belts
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12Shoulder-pads
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/14Carrying-straps; Pack-carrying harnesses
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12Shoulder-pads
    • A45F2003/122Back cushioning parts or details of backpacks, e.g. with ventilation
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12Shoulder-pads
    • A45F2003/127Dorsal or hip pads for the lumbar back or for the waist

Landscapes

  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Portable Outdoor Equipment (AREA)

Abstract

The present invention discloses a kind of outdoor knapsack and its manufacture craft, is related to outdoor goods technical field.The backpack body back, which is equipped with, adjusts component, and the adjusting component includes forward and backward two annular braces skeleton, two pulleys, two bungees, two connecting rods, backboard and load-carrying backing plate;Before described, before two annular brace skeletons are respectively provided at backpack body afterwards, two sides afterwards, wherein the inner ring surface of each annular brace skeleton is along the circumferential direction equipped with sliding slot, wherein load-carrying backing plate is slidably connected on two support frames, two connecting rod is respectively provided on the inner ring surface on two annular brace skeletons, a pulley is equipped in the middle part of two connecting rod, one end of the bungee is fixed on load-carrying backing plate, the other end passes through pulley and support is erected on backboard, before the backboard is fixed on, afterwards between two annular brace skeletons, the backboard is equipped with a groove along human spine direction.The present invention can adjust knapsack center in real time and keep human comfort.

Description

A kind of open air knapsack and its manufacture craft
Technical field
The present invention relates to outdoor goods technical field more particularly to a kind of outdoor knapsack and its manufacture crafts.
Background technique
Currently, outdoor knapsack mostly uses the structure that shoulder belt is arranged on backpack body, some meetings are additionally provided with abdominal belt, the meeting also having Bed course is set in the bottom of backpack body and/or the bottom of backpack body, the knapsack of these structures is all difficult to solve the weight of knapsack and its content The problem of heart sinks, so that weight is only born in shoulder, although some knapsacks are equipped with waistband, since center of gravity is sunk, institute It is also very limited with the weight that waist can be shared, to aggravate the weight bearing sense of user, keep its inconvenient to use, uncomfortable, And it be easy to cause shoulder and/or waist injury.For this reason, it may be necessary to which a kind of knapsack, can effectively solve the problem that the weight of knapsack and its content The problem of heart sinks, makes it effectively share the weight bearing of shoulder and waist, to mitigate the weight bearing sense of user, makes its user Just, shoulder and/or waist injury comfortably, are avoided.
Summary of the invention
Knapsack center can be adjusted in real time the problem to be solved in the present invention is to provide one kind and keeps the open air of human comfort Knapsack and its manufacture craft, for this purpose, existing, the following technical solutions are proposed:
The present invention provides a kind of outdoor knapsack, including backpack body and band, and the backpack body back, which is equipped with, adjusts component, the tune Saving component includes forward and backward two annular braces skeleton, two pulleys, two bungees, two connecting rods, backboard and load-carrying backing plate;It is described Forward and backward two annular braces skeleton is respectively provided at the front and rear sides of backpack body, wherein the inner ring surface of each annular brace skeleton is circumferentially Direction is equipped with sliding slot, and wherein load-carrying backing plate is slidably connected on two support frames, and two connecting rod is respectively provided at two annular branch On inner ring surface on support bone frame, a pulley is equipped in the middle part of two connecting rod, one end of the bungee is fixed on load-carrying On backing plate, the other end passes through pulley and support and is erected on backboard, the backboard be fixed on forward and backward two annular braces skeleton it Between, the backboard is equipped with a groove along human spine direction.
Further improvement of these options, the backboard are equipped with air cushion Buffer Unit, the air cushion Buffer Unit packet Back air cushion, shoulder air cushion and air bag are included, the shoulder air cushion is located at the contact position of shoulder belt and shoulders of human body and leads to It crosses conduit to be connected to back air cushion, the back air cushion is divided into two parts, is respectively provided at the two sides of backboard groove, the back gas The bottom of pad is connected to air bag by conduit.
The contact surface of further improvement of these options, the back air cushion and human body back is equipped with multiple ventilations Slot.
One layer of 3D grenadine is wrapped up on further improvement of these options, the back air cushion and shoulder air cushion surface, in 3D Gas permeable material is filled between grenadine and air cushion.
Further improvement of these options, the backpack body and band are made of waterproof fabrics.
The manufacture craft for the outdoor knapsack that the present invention also provides a kind of as described in above scheme, includes the following steps:
Step 1: with light metal alloys, ABS plastic, POM plastic or PPO plastics manufacture two support frames, connecting rod and Backboard, and the sliding slot along skeleton extending direction is opened up with milling cutter in the side of support frame, then by the both ends end to end of skeleton Then welding opens there are two through-hole in the upper half circular arc portion horizontal symmetrical of annular brace skeleton, is then connected to connecting rod Between two through-holes, backboard is welded between two annular brace skeletons, and back plate design is at fitting human body back and in backboard Portion is provided with the groove extended along human spine direction;
Step 2: pulley is fixed in the middle part of connecting rod using screw, the both ends of the load-carrying backing plate are welded with ball, will roll For pearl in the sliding slot of support frame, the both ends of the load-carrying backing plate open up a through-hole respectively, are fixed on one end of bungee Through hole, the other end of bungee pass through pulley and are fixed at the top of backboard;
Step 3: a waistband, two shoulder belts have been tailored with waterproof cloth or leather;
Step 4: using anti-gas-leak material production back air cushion and shoulder air cushion, and using hot-press method in back gas Pad opens up air channel with shoulder air cushion on the surface with human contact, and utilizes inflating catheter by back air cushion and shoulder gas Pad connection is got up, and wherein back air cushion is divided into two parts, and two-part back air cushion is pasted onto backboard groove using glue Then shoulder air cushion is sewn to the contact position of two shoulder belts and shoulders of human body by two sides, wherein the bottom setting of back air cushion is led Pipe is connected to air bag;
Step 5: one layer of gas permeable material is wrapped on the surface of shoulder air cushion and back air cushion, then in gas permeable material table Face wraps one layer of 3D grenadine and 3D grenadine unites by a seam;
Step 6: using waterproof fabrics by two annular brace skeletons be wrapped in and along support frame edge sewing, by shoulder An outdoor knapsack is made in corresponding position in band and waistband sewing.
Further improvement of these options, in step 1, the light metal alloys are aluminium alloy.
Further improvement of these options, in step 4, the anti-gas-leak material is rubber material.
Further improvement of these options, in step 4, the hot-press method refers to shoulder air cushion and back gas Pad is placed on heat pressing forming machines, and shoulder air cushion and back air cushion are placed in mold first, then using high temperature hot pressing plate in shoulder The wherein side surface of portion's air cushion and back air cushion is hot-forming at a plurality of groove, forms air channel.
Further improvement of these options, the hot-forming temperature are 80-100 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention design in knapsack adjusts component, because only shoulder brings adjusting whole to existing open air knapsack The height of body open air knapsack, more weight have focused on shoulder, and in this way in long-term use, shoulder is very uncomfortable, institute It is designed in backpack body with the present invention and adjusts component, bearing plate is used to carry weight, when weight increases in knapsack, using extending to Bungee and pulley at backboard, tensing bungee can be by load-carrying backing plate pull-up, and its realizes that wrapping interior article center of gravity moves up, and adjusts On to waist when position, the case where shoulder load-bearing in traditional outdoor knapsack can be mitigated, load-bearing is carried out by waist, mitigates knapsack person shoulder Portion's stress increases the comfort of consumer.
(2) back plate design is had the groove extended along backbone direction by the present invention at middle part, and such consumer is in the feelings bent over Under condition, backbone would not encounter backboard, can also improve the comfort of consumer.
(3) shoulder and back designs inflatable air cushion of the invention in knapsack, by designing the inflation in back air cushion bottom Air bag is inflated, and the weight of entire knapsack is spread out, and making knapsack, person feels comfortable when bearing, and is close to, is not only improved Teen-age healthy growth, and meet the health care requirement of adult, at the same can inflation/deflation air bag, can be held in the hand In pinching anywhere or anytime, have entertainment, also can achieve take exercise hand muscle effect.
Appended drawing reference:
A kind of Fig. 1 structural schematic diagram of outdoor knapsack of the present invention.
A kind of Fig. 2 structural schematic diagram of the adjusting component of outdoor knapsack of the present invention.
A kind of Fig. 3 structural schematic diagram of the annular brace skeleton of outdoor knapsack of the present invention.
Detailed description of the invention: backpack body -1;Band -2;Shoulder air cushion -3;Back air cushion -4;Conduit -5;Air bag -6;It is elastic Rope -7;Cord hole -8;Backboard -9;Pulley -10;Preceding annular support frame -11;Annular brace skeleton -12 afterwards;Connecting rod -13;Load-carrying Backing plate -14;Through-hole -15;Backbone groove -16;Sliding slot -17.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to Specific embodiment, the present invention is further explained.
Embodiment 1
The present embodiment provides a kind of such as attached drawing 1 to attached outdoor knapsack shown in Fig. 3, including backpack body 1 and band 2, the packet 1 back of body, which is equipped with, adjusts component, and the adjusting component includes forward and backward two annular braces skeleton (11,12), two pulleys, 10, two pine Tight rope 7, two connecting rods 13, backboard 9 and load-carrying backing plate 14;The forward and backward two annular braces skeleton (11,12) is respectively provided at packet The front and rear sides of body 1, wherein the inner ring surface of each annular brace skeleton is along the circumferential direction equipped with sliding slot 17, wherein load-carrying backing plate 14 are slidably connected on two support frames (11,12), and two connecting rod 13 is respectively provided on two annular brace skeletons (11,12) Inner ring surface on, the middle part of two connecting rod 13 is equipped with a pulley 10, and one end of the bungee 7 is fixed on load-carrying backing plate At through-hole 15 on 14, the other end passes through pulley 10 and support frame (11 or 12) is located at the cord hole 8 on 9 bottom of backboard, described Backboard 9 is fixed between forward and backward two annular braces skeleton (11,12).Design adjusts component in knapsack, because of existing open air Only shoulder brings the height for adjusting whole outdoor knapsack to knapsack, and more weight have focused on shoulder, in this way long-term In use, shoulder is very uncomfortable, so the present invention designs in backpack body adjusts component, load-carrying backing plate 14 is used to carry weight, When weight increases in knapsack, using the bungee 7 and pulley 10 extended at backboard 9, tensing bungee 7 can be by load-carrying pad 14 pull-up of plate then realizes that article center of gravity moves up in wrapping, and when being transferred to position on waist, can mitigate shoulder in traditional outdoor knapsack and hold The situation of weight carries out load-bearing by waist, mitigates knapsack person shoulder stress, increase the comfort of consumer.
Embodiment 2
The present embodiment provides a kind of outdoor knapsacks, are with 1 difference of embodiment: being equipped in the middle part of the backboard 9 along backbone side To the backbone groove 16 of extension.For consumer in this way under the case where bending over, backbone would not encounter backboard 9, can also improve and disappear The comfort of the person of expense.
Embodiment 3
The present embodiment provides a kind of outdoor knapsacks, and be with 2 difference of embodiment: the backboard 9 is equipped with air cushion and buffers structure Part, the air cushion Buffer Unit include back air cushion 4, shoulder air cushion 3 and air bag 6, and the shoulder air cushion 3 is located at shoulder belt It is connected to the contact position of shoulders of human body and by conduit 5 with back air cushion 4, the back air cushion 4 divides for two parts, sets respectively In the two sides of backboard groove 16, the bottom of the back air cushion 4 is connected to air bag 6 by conduit 5.Knapsack shoulder and Back designs inflatable air cushion, the air bag 6 by design in 4 bottom of back air cushion is inflated, by the weight of entire knapsack It spreads out, making knapsack, person feels comfortable when bearing, and is close to, not only improves teen-age healthy growth, and meet adult Health care requirement, while can inflation/deflation air bag 6, pinching anywhere or anytime in being held in the hand, have entertainment, Also it can achieve the effect for tempering hand muscle.
Embodiment 4
The present embodiment provides a kind of outdoor knapsacks, are with 3 difference of embodiment: the back air cushion 4 is equipped with multiple logical Air drain helps speed up scattering and disappearing for human heat, improves the comfort for using knapsack.
Embodiment 5
The present embodiment provides a kind of outdoor knapsacks, are with 4 difference of embodiment: 3 table of the back air cushion 4 and shoulder air cushion Bread wraps up in one layer of 3D grenadine, and gas permeable material is filled between 3D grenadine and air cushion, also for absorption human body back and shoulder Upper sweat keeps human body salubriouser.
The present invention also provides a kind of manufacture crafts of outdoor knapsack described in above-described embodiment 5, include the following steps:
Step 1: two support frames, connecting rod and back are manufactured with aluminium alloy or ABS plastic or POM plastic or PPO plastics Plate, and the sliding slot along skeleton extending direction is opened up with milling cutter in the side of support frame, then the both ends end to end of skeleton are welded It connects, then opens in the upper half circular arc portion horizontal symmetrical of annular brace skeleton there are two through-hole, connecting rod is then connected to two Between a through-hole, backboard is welded between two annular brace skeletons, and back plate design is at fitting human body back and in the middle part of backboard It is provided with the backbone groove extended along human spine direction;
Step 2: pulley is fixed in the middle part of connecting rod using screw, the both ends of the load-carrying backing plate are welded with ball, will roll For pearl in the sliding slot of support frame, the both ends of the load-carrying backing plate open up a through-hole respectively, are fixed on one end of bungee Through hole, the other end of bungee pass through pulley and are fixed at the top of backboard;
Step 3: a waistband, two shoulder belts have been tailored with waterproof cloth, leather or the strong material of endurance;
Step 4: heat is placed on using rubber production back air cushion and shoulder air cushion, and by shoulder air cushion and back air cushion On pressing machine, shoulder air cushion and back air cushion are placed in mold first, then using high temperature hot pressing plate in shoulder air cushion and Wherein a side surface is hot-forming at a plurality of groove, formation air channel at 80-100 DEG C for back air cushion, and is led using inflation Back air cushion is connected to by pipe with shoulder air cushion, and wherein back air cushion is divided into two parts, using glue by two-part back Air cushion is pasted onto the two sides of backboard groove, then shoulder air cushion is sewn to the contact position of two shoulder belts and shoulders of human body, wherein The bottom setting conduit of back air cushion is connected to air bag;
Step 5: one layer of gas permeable material is wrapped on the surface of shoulder air cushion and back air cushion, then in gas permeable material table Face wraps one layer of 3D grenadine and 3D grenadine unites by a seam;
Step 6: using waterproof fabrics by two annular brace skeletons be wrapped in and along support frame edge sewing, by shoulder An outdoor knapsack is made in corresponding position in band and waistband sewing.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention, And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above Change, modification will all be fallen in scope of the presently claimed invention.

Claims (10)

1. a kind of open air knapsack, including backpack body and band, it is characterised in that: the backpack body back, which is equipped with, adjusts component, the tune Saving component includes forward and backward two annular braces skeleton, two pulleys, two bungees, two connecting rods, backboard and load-carrying backing plate;It is described Forward and backward two annular braces skeleton is respectively provided at the front and rear sides of backpack body, wherein the inner ring surface of each annular brace skeleton is circumferentially Direction is equipped with sliding slot, and wherein load-carrying backing plate is slidably connected on two support frames, and two connecting rod is respectively provided at two annular branch On inner ring surface on support bone frame, a pulley is equipped in the middle part of two connecting rod, one end of the bungee is fixed on load-carrying On backing plate, the other end passes through pulley and support and is erected on backboard, the backboard be fixed on forward and backward two annular braces skeleton it Between, the backboard is equipped with a groove along human spine direction.
2. a kind of outdoor knapsack according to claim 1, it is characterised in that: the backboard is equipped with air cushion Buffer Unit, The air cushion Buffer Unit includes back air cushion, shoulder air cushion and air bag, and the shoulder air cushion is located at shoulder belt and human body It the contact position of shoulder and is connected to back air cushion by conduit, the back air cushion is divided into two parts, and it is recessed to be respectively provided at backboard The bottom of the two sides of slot, the back air cushion is connected to air bag by conduit.
3. a kind of outdoor knapsack according to claim 2, it is characterised in that: contact of the back air cushion with human body back Face is equipped with multiple air channels.
4. a kind of outdoor knapsack according to claim 2, it is characterised in that: the back air cushion and shoulder air cushion surface packet One layer of 3D grenadine is wrapped up in, gas permeable material is filled between 3D grenadine and air cushion.
5. a kind of outdoor knapsack according to claim 1-4, it is characterised in that: the backpack body and band are by anti- Water surface material is constituted.
6. a kind of manufacture craft of outdoor knapsack as claimed in claim 5, which comprises the steps of:
Step 1: two support frames, connecting rod and back are manufactured with light metal alloys, ABS plastic, POM plastic or PPO plastics Plate, and the sliding slot along skeleton extending direction is opened up with milling cutter in the side of support frame, then the both ends end to end of skeleton are welded It connects, then opens in the upper half circular arc portion horizontal symmetrical of annular brace skeleton there are two through-hole, connecting rod is then connected to two Between a through-hole, backboard is welded between two annular brace skeletons, and back plate design is at fitting human body back and in the middle part of backboard Open up the groove extended along human spine direction;
Step 2: pulley is fixed in the middle part of connecting rod using screw, the both ends of the load-carrying backing plate are welded with ball, and ball is embedding In the sliding slot of support frame, the both ends of the load-carrying backing plate open up a through-hole respectively, are fixed on through-hole with one end of bungee Place, the other end of bungee pass through pulley and are fixed at the top of backboard;
Step 3: a waistband, two shoulder belts have been tailored with waterproof cloth or leather;
Step 4: using anti-gas-leak material production back air cushion and shoulder air cushion, and using hot-press method back air cushion with Shoulder air cushion opens up air channel on the surface with human contact, and is connected back air cushion and shoulder air cushion using inflating catheter Lead to, wherein back air cushion is divided into two parts, two-part back air cushion is pasted onto the two sides of backboard groove using glue, Then shoulder air cushion is sewn to the contact position of two shoulder belts and shoulders of human body, wherein the bottom of back air cushion is arranged conduit and fills The connection of gas air bag;
Step 5: one layer of gas permeable material is wrapped on the surface of shoulder air cushion and back air cushion, is then wrapped up on gas permeable material surface Upper one layer of 3D grenadine simultaneously unites by a seam 3D grenadine;
Step 6: using waterproof fabrics by two annular brace skeletons be wrapped in and along support frame edge sewing, by shoulder belt and Waistband is sewed in corresponding position, that is, an outdoor knapsack is made.
7. a kind of manufacture craft of outdoor knapsack according to claim 6, it is characterised in that: described light in step 1 Matter metal alloy is aluminium alloy.
8. a kind of manufacture craft of outdoor knapsack according to claim 6, it is characterised in that: described anti-in step 4 Out-gassed material is rubber material.
9. a kind of manufacture craft of outdoor knapsack according to claim 6, it is characterised in that: in step 4, the heat Pressure method, which refers to, is placed on shoulder air cushion and back air cushion on heat pressing forming machines, and shoulder air cushion and back air cushion are placed on mould first It is then hot-forming at a plurality of groove on the wherein side surface of shoulder air cushion and back air cushion using high temperature hot pressing plate in tool, Form air channel.
10. a kind of manufacture craft of outdoor knapsack according to claim 9, it is characterised in that: the hot-forming temperature Degree is 80-100 DEG C.
CN201710555321.1A 2017-07-10 2017-07-10 A kind of open air knapsack and its manufacture craft Expired - Fee Related CN107348655B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710555321.1A CN107348655B (en) 2017-07-10 2017-07-10 A kind of open air knapsack and its manufacture craft

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Application Number Priority Date Filing Date Title
CN201710555321.1A CN107348655B (en) 2017-07-10 2017-07-10 A kind of open air knapsack and its manufacture craft

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CN107348655A CN107348655A (en) 2017-11-17
CN107348655B true CN107348655B (en) 2019-02-01

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108919660A (en) * 2018-07-12 2018-11-30 北京小米移动软件有限公司 Knapsack method of adjustment, device and storage medium
CN111067235A (en) * 2020-01-17 2020-04-28 付锦涛 Knapsack with automatic heat dissipation function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1361669A (en) * 1999-07-19 2002-07-31 零重力技术有限责任公司 Ergonomic bookpack
CN2713868Y (en) * 2004-08-03 2005-08-03 张立常 Novel health caring bag with gravity center adjustable air cushion
CN202525406U (en) * 2012-03-30 2012-11-14 江苏省阿珂姆野营用品有限公司 Adjustable packsack

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1361669A (en) * 1999-07-19 2002-07-31 零重力技术有限责任公司 Ergonomic bookpack
CN2713868Y (en) * 2004-08-03 2005-08-03 张立常 Novel health caring bag with gravity center adjustable air cushion
CN202525406U (en) * 2012-03-30 2012-11-14 江苏省阿珂姆野营用品有限公司 Adjustable packsack

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Granted publication date: 20190201