Backpack

Abstract

To provide a knapsack in which a housing part can be sufficiently moved by adjusting an attachment position of a shoulder belt to the housing part.SOLUTION: A knapsack 100 includes a housing part 1 and a pair of shoulder belts 3 connected to the housing part 1. Each of the pair of shoulder belts 3 includes a first end and a second end E2 in an extension direction. The first end of each of the pair of shoulder belts 3 is connected to an upper portion of the housing part 1. The second end E2 of each of the pair of shoulder belts 3 is connected to a lower portion of the housing part 1 such that a connection position with the housing part 1 can be adjusted in a vertical direction of the housing part 1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to backpacks. [Background technology]

[0002] In the past, backpacks equipped with a pair of shoulder straps have been used. For example, Utility Model Registration No. 3115681 (Patent Document 1) describes a backpack-shaped bag equipped with shoulder straps. In the bag described in this publication, the height of the mounting position of the padding on the shoulder straps can be adjusted. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3115681 Summary of the Invention [Problem to be solved by the invention]

[0004] In the bag described in the above publication, the attachment position of the upper side of the shoulder strap is adjustable. However, even if the attachment position of the upper side of the shoulder strap is adjusted, the movement of the bag is insufficient.

[0005] The present invention has been made in consideration of the above problems, and its object is to provide a backpack bag in which the storage section can be moved sufficiently by adjusting the attachment position of the backpack belt to the storage section. [Means for solving the problem]

[0006] The backpack bag of the present invention includes a storage section and a pair of shoulder straps connected to the storage section. Each of the pair of shoulder straps includes a first end and a second end in an extension direction. The first end of each of the pair of shoulder straps is connected to an upper part of the storage section. The second end of each of the pair of shoulder straps is connected to a lower part of the storage section so that the connection position with the storage section can be adjusted in the up-down direction of the storage section. The storage section includes a back portion and a connecting member. The connecting member is provided on the back portion of the storage section, is disposed so as to protrude outward from the back portion, and is configured to be connectable to the second ends of the pair of shoulder straps. Effect of the Invention

[0007] According to the backpack of the present invention, the storage compartment can be moved sufficiently by adjusting the attachment position of the backpack belt to the storage compartment. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic front view of a backpack according to an embodiment of the present invention; [Diagram 2] 1 is a schematic side view of a backpack according to an embodiment of the present invention; [Diagram 3] 1 is a schematic rear view of a backpack according to an embodiment of the present invention; [Figure 4] 1 is a schematic side view showing a state in which the shoulder straps of a backpack in one embodiment of the present invention are connected to first and second attachment positions. FIG. [Diagram 5] FIG. 2 is a side view showing a schematic diagram of a state in which the shoulder strap of the backpack in one embodiment of the present invention is connected to a first attachment position. [Figure 6] FIG. 2 is a side view showing a schematic diagram of a state in which the shoulder strap of the backpack in one embodiment of the present invention is connected to a second attachment position. [Figure 7] FIG. 2 is a rear view showing a schematic state in which the shoulder straps of the backpack are connected to first to third attachment positions in the embodiment of the present invention. [Figure 8] FIG. 13 is a rear view showing a schematic state in which the shoulder straps of the backpack are connected to fourth and fifth attachment positions in the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will be described below with reference to the drawings. The bag in this embodiment is applicable to various types of bags such as backpacks, school bags, etc. In the following, the same or corresponding parts are given the same reference numerals, and overlapping descriptions will not be repeated.

[0010] First, the configuration of backpack 100 in the present embodiment will be described with reference to Figs. 1 to 3.

[0011] As shown in Figures 1 and 2, the backpack 100 in this embodiment mainly comprises a storage section 1, a lid section 2, a pair of shoulder straps 3, a first pocket 4, a second pocket 5, a third pocket 6, a handle 7, a buckle 8, cushioning material 9, and a pair of rotation suppression members 20.

[0012] Storage section 1 includes a front section 1a, a back section 1b, a pair of side sections 1c, and a bottom section 1d. Front section 1a is disposed on the front side of backpack 100. Back section 1b is disposed on the rear side of backpack 100. Back section 1b faces front section 1a. An opening is provided at the upper end of storage section 1. In Figs. 1 to 3, the opening is covered with lid section 2. Storage section 1 has a storage space communicating with the opening. The storage space is a space surrounded by the inner circumferential surfaces of front section 1a, back section 1b, a pair of side sections 1c, and bottom section 1d. Storage section 1 is configured so that, for example, a textbook can be stored in the storage space through the opening.

[0013] A first pocket 4 is disposed on the outside of the front portion 1a of the storage unit 1. A second pocket 5 is disposed on the outside of a first side portion 1c1 of a pair of side portions 1c of the storage unit 1. A third pocket 6 is disposed on the outside of a second side portion 1c2 of the pair of side portions 1c of the storage unit 1. The first pocket 4, the second pocket 5, and the third pocket 6 are configured to be capable of storing, for example, stationery. A cushioning material 9 is disposed on the outside of the back portion 1b of the storage unit 1.

[0014] The storage unit 1 includes a connecting member 10. The connecting member 10 is provided on the back portion 1b of the storage unit 1. The connecting member 10 is disposed under the back portion 1b of the storage unit 1. The connecting member 10 is configured to be able to connect each of the pair of shoulder straps 3.

[0015] As shown in Figs. 1 to 3, the lid 2 is connected to the upper end of the back 1b of the storage section 1. The lid 2 is configured so that the opening can be opened and closed with the upper end of the back 1b as the base end. The lid 2 is configured so that it can be connected to the first pocket 4 via a buckle 8. The buckle 8 is configured so that a portion connected to the lid 2 and a portion connected to the first pocket 4 can be detached. The lid 2 is configured so that it can be opened and closed by attaching and detaching the buckle 8. The ceiling 2a of the lid 2 is configured so that it can be opened and closed by opening and closing the fastener 2b. A handle 7 is attached to the ceiling 2a of the lid 2.

[0016] The pair of shoulder belts 3 are configured to be worn at least on the shoulders of a user when the user carries the backpack 100 on his / her back. The pair of shoulder belts 3 are connected to the storage section 1. Each of the pair of shoulder belts 3 includes a first end E1 and a second end E2 in the extension direction. The first end E1 is one end of the shoulder belt 3 in the extension direction. The second end E2 is the other end of the shoulder belt 3 in the extension direction.

[0017] The first end E1 of each of the pair of shoulder straps 3 is connected to the upper part of the storage unit 1. The first end E1 of each of the pair of shoulder straps 3 is connected to the upper part of the storage unit 1 by a connecting member R. The first end E1 of each of the pair of shoulder straps 3 is configured to be rotatable around the connecting member R along the back 1b. A rivet may be used as the connecting member R. The rivet has a head and a shaft. The head protrudes from the shaft in the radial direction of the shaft. More specifically, the first end E1 of each of the pair of shoulder straps 3 may be configured to be rotatable around the shaft of the rivet.

[0018] The second end E2 of each of the pair of shoulder belts 3 is connected to the lower part of the storage unit 1 so that the attachment position to the storage unit 1 can be adjusted in the up-down direction of the storage unit 1. The second end E2 of each of the pair of shoulder belts 3 is configured so that the attachment position to the storage unit 1 can be adjusted in the up-down direction of the storage unit 1. The second end E2 of each of the pair of shoulder belts 3 is connected to the lower part of the storage unit 1. The second end E2 of each of the pair of shoulder belts 3 is connected to the lower part of the storage unit 1 so that the attachment position to the storage unit 1 can be adjusted in the width direction perpendicular to the up-down direction of the storage unit 1. The second end E2 of each of the pair of shoulder belts 3 is configured so that the attachment position to the storage unit 1 can be adjusted in the width direction of the storage unit 1.

[0019] In this embodiment, the second end E2 of each of the pair of shoulder straps 3 is connected to the lower part of the storage unit 1 so that the attachment position to the storage unit 1 can be adjusted both in the vertical direction and the width direction of the storage unit 1. The second end E2 of each of the pair of shoulder straps 3 is configured so that the attachment position to the storage unit 1 can be adjusted both in the vertical direction and the width direction of the storage unit 1.

[0020] The storage unit 1 includes a plurality of connection parts 40 connectable to the second end E2. The number of connection parts 40 may be two or more. The plurality of connection parts 40 are arranged apart from each other in the vertical direction and width direction of the storage unit 1. In this embodiment, the plurality of connection parts 40 are provided on the back part 1b and the bottom part 1d.

[0021] In this embodiment, the connection portion 40 includes a first connection portion 41, a second connection portion 42, and a third connection portion 43. The first connection portion 41 and the second connection portion 42 are provided on the connecting member 10 of the back portion 1b. In the up-down direction, the first connection portion 41 is disposed on the lower side, and the second connection portion 42 is disposed on the upper side. In other words, the first connection portion 41 is disposed below the second connection portion 42. The third connection portion 43 is provided on the bottom portion 1d. In the left-right direction, the third connection portion 43 is disposed inside the first connection portion 41 and the second connection portion 42.

[0022] The second end E2 of each of the pair of shoulder belts 3 is selectively connected to a plurality of connection parts 40. That is, the second end E2 of each of the pair of shoulder belts 3 is selectively connected to the first connection part 41, the second connection part 42, or the third connection part 43. In FIG. 2, the second end E2 of each of the pair of shoulder belts 3 is connected to the first connection part 41.

[0023] The pair of shoulder belts 3 includes a first shoulder belt 31 and a second shoulder belt 32. The first shoulder belt 31 and the second shoulder belt 32 are arranged side by side in the width direction (left and right direction) of the backpack 100.

[0024] The pair of rotation suppressing members 20 are attached to the upper part of the storage section 1. Each of the pair of rotation suppressing members 20 is configured to be capable of suppressing the rotation of each of the pair of shoulder straps 3 away from each other. The pair of rotation suppressing members 20 includes a first rotation suppressing member 21 and a second rotation suppressing member 22. The first rotation suppressing member 21 and the second rotation suppressing member 22 are arranged side by side in the width direction (left-right direction) of the backpack 100.

[0025] In this embodiment, the pair of shoulder belts 3 has a chest belt 33. In addition, each of the pair of shoulder belts 3 has a D-ring .

[0026] With reference to FIG. 4, a mechanism for adjusting the attachment position of shoulder belt 3 of backpack 100 in this embodiment will be described.

[0027] As shown in Fig. 4, the mounting position of the carrying belt 3 is adjusted by connecting the carrying belt 3 to the first mounting position or the second mounting position. When the carrying belt 3 is connected to the first mounting position, the second end E2 of the carrying belt 3 is connected to the second connection part 42. When the carrying belt 3 is connected to the second mounting position, the second end E2 of the carrying belt 3 is connected to the third connection part 43. The length of the carrying belt 3 is the same when the carrying belt 3 is connected to the first mounting position and when the carrying belt 3 is connected to the second mounting position.

[0028] When the backpack belt 3 is connected to the second attachment position, the upper end of the lid portion 2 and the lower end of the storage portion 1 of the backpack bag 100 are located at a higher height than when the backpack belt 3 is connected to the first attachment position. In other words, when the backpack belt 3 is connected to the second attachment position, the storage portion 1 is raised upward compared to when the backpack belt 3 is connected to the first attachment position.

[0029] 4 and 5, the vertical distance Y2 from the shoulder of a person carrying backpack 100 to the center of storage section 1 depending on the attachment positions of first end E1 and second end E2 of backpack belt 3 will be described.

[0030] The length a1 of the shoulder strap 3, the vertical length a2 between the first end E1 and the second end E2, the vertical length b1 from the first end E1 to the top of the lid 2, the vertical length b2 from the second end E2 to the bottom of the storage section 1, the vertical length b3 from the top of the lid 2 to the bottom of the storage section 1, the length Y1 from the shoulder to the first end E1, and the vertical distance Y2 from the shoulder to the center of the storage section 1 are related by the following equation (1).

[0031] Y2=(a1-b1+b2) / 2 (1) As shown in the above formula (1), when the length a1 of the shoulder strap 3 is increased, the vertical distance Y2 from the shoulder to the center of the backpack 100 is increased, and the storage unit 1 moves downward. On the other hand, when the length a1 of the shoulder strap 3 remains unchanged and the attachment position of the first end E1 of the shoulder strap 3 is lowered, the vertical length b1 from the first end E1 to the top end of the lid 2 is increased and the vertical distance Y2 from the shoulder to the center of the storage unit 1 is shortened, and the storage unit 1 moves upward. On the other hand, when the length a1 of the shoulder strap 3 is unchanged and the attachment position of the second end E2 of the shoulder strap 3 is lowered, the vertical length b2 from the second end E2 to the bottom end of the storage unit 1 is shortened and the vertical distance Y2 from the shoulder to the center of the storage unit 1 is shortened, and the storage unit 1 moves upward.

[0032] 4 and 6, the distance Z1 from the back to the chest of a person carrying backpack 100 depending on the attachment positions of first end E1 and second end E2 of backpack belt 3 will be described.

[0033] The length a1 of the shoulder strap 3, the vertical length a2 between the first end E1 and the second end E2, the vertical length b1 from the first end E1 to the top of the lid 2, the vertical length b2 from the second end E2 to the bottom of the storage section 1, the vertical length b3 from the top of the lid 2 to the bottom of the storage section 1, and the distance from the back to the chest (chest thickness) Z1 are related by the following equation (2).

[0034] Z1=(a1 2 -a2 2 ) / 2a1 (2) The mounting position of the backpack belt 3 is adjusted to accommodate the growth in height of the person carrying the backpack 100.

[0035] As shown in the above formula (2), when the attachment position of the first end E1 of the carrying belt 3 is raised without changing the length a1 of the carrying belt 3, the vertical length a2 between the first end E1 and the second end E2 becomes longer, and the distance Z1 from the back to the chest becomes shorter. Also, when the attachment position of the second end E2 of the carrying belt 3 is raised without changing the length a1 of the carrying belt 3, the vertical length a2 between the first end E1 and the second end E2 becomes shorter, and the distance Z1 from the back to the chest becomes longer.

[0036] For this reason, in the method of adjusting the vertical length b1 from the first end E1 to the top end of the lid 2, adjustments for height and chest thickness in physical growth are opposite movements. Therefore, in terms of movement of the storage unit 1 by adjusting the mounting position of the shoulder strap 3, the method of adjusting the vertical length b1 from the first end E1 to the top end of the lid 2 reduces the amount of movement of the storage unit 1. Therefore, since height and chest thickness increase in the course of physical growth, the method of adjusting the vertical length b1 from the first end E1 to the top end of the lid 2 does not provide sufficient movement of the storage unit 1.

[0037] In contrast, in the method of adjusting the vertical length b2 from the second end E2 to the bottom end of the storage unit 1, adjustments to height and chest thickness in physical growth result in the same movement. Therefore, in terms of movement of the storage unit 1 due to adjustment of the mounting position of the shoulder strap 3, the method of adjusting the vertical length b2 from the second end E2 to the bottom end of the storage unit 1 results in a large amount of movement of the storage unit 1. Therefore, when the height and chest thickness increase in physical growth, the method of adjusting the vertical length b2 from the second end E2 to the bottom end of the storage unit 1 allows the storage unit 1 to move sufficiently.

[0038] 7 and 8, a modified version of backpack 100 in the present embodiment will be described. In the modified version of backpack 100 in the present embodiment, the attachment position of backpack belt 3 in the width direction of storage section 1 can be changed.

[0039] When the body is small, the width of the body is narrow, and the width of backpack 100 is large relative to the body width. If the mounting position of backpack belt 3 is far from the body, backpack 100 will sway sideways, resulting in a lack of stability. As the body grows, the width of the body also increases, and so the mounting position of backpack belt 3 needs to be adjusted.

[0040] As shown in FIG. 7, the attachment position of the second end E2 of the shoulder belt 3 in the width direction of the storage section 1 is attachment position A when the body is small, and then to an outer attachment position B as the body grows, and to an even outer attachment position C.

[0041] As shown in Fig. 8, the attachment position of first end E1 of shoulder belt 3 in the width direction of storage section 1 may be adjustable. The attachment position of first end E1 of shoulder belt 3 in the width direction of storage section 1 may be attachment position D when the body is small, and may be shifted to outer attachment position E as the body grows. Note that the attachment position of first end E1 of shoulder belt 3 may be adjustable to attachment position D or attachment position E by configuring the position of connecting member R (see Fig. 3) to be movable.

[0042] Next, the effects of backpack 100 in this embodiment will be described.

[0043] According to backpack 100 of this embodiment, second end E2 of each of a pair of shoulder straps 3 is connected to the lower part of storage unit 1 so that the attachment position to storage unit 1 can be adjusted in the up-down direction of storage unit 1. Therefore, storage unit 1 can be moved in the up-down direction by adjusting the attachment position of second end E2 of shoulder straps 3 to storage unit 1. Furthermore, since the attachment position of second end E2 of shoulder straps 3 to storage unit 1 is adjusted, adjustments for height and adjustments for chest thickness in physical growth are the same movement, so storage unit 1 can be moved sufficiently.

[0044] According to the backpack 100 of this embodiment, the second end E2 of each of the pair of shoulder straps 3 is connected to the lower part of the storage unit 1 so that the attachment position to the storage unit 1 can be adjusted in the width direction perpendicular to the up-down direction of the storage unit 1. Therefore, the storage unit 1 can be moved in the width direction by adjusting the attachment position of the second end E2 of the shoulder strap 3 to the storage unit 1. Therefore, the storage unit 1 can be moved sufficiently in the up-down direction and the width direction by adjusting the attachment position of the second end E2 of the shoulder strap 3 to the storage unit 1. In addition, the lateral swing of the backpack 100 can be suppressed by adjusting the attachment position of the backpack strap 3 according to the body width. Therefore, the stability of the backpack 100 can be improved.

[0045] In the backpack 100 of this embodiment, the multiple connection parts 40 are disposed apart from one another in the up-down and width directions of the storage section 1. Therefore, by connecting the second end E2 of the backpack belt 3 to the multiple connection parts 40, the attachment position of the second end E2 of the backpack belt 3 to the storage section 1 can be adjusted in the up-down and width directions.

[0046] According to backpack 100 of the present embodiment, multiple connection parts 40 are provided on back portion 1b and bottom portion 1d. Therefore, by connecting second end E2 of backpack strap 3 to multiple connection parts 40 provided on back portion 1b and bottom portion 1d, the attachment position of second end E2 of backpack strap 3 to storage portion 1 can be adjusted in the vertical and width directions.

[0047] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0048] 1 storage section, 1a front section, 1b back section, 1c side section, 1d bottom section, 2 lid section, 3 shoulder strap, 4 first pocket, 5 second pocket, 6 third pocket, 7 handle, 8 buckle, 9 cushioning material, 10 connecting member, 20 rotation suppression member, 40 connection section, 100 backpack, E1 first end section, E2 second end section, R connection member.

Claims

1. A storage section; A pair of shoulder straps connected to the storage section, Each of the pair of shoulder straps includes a first end and a second end in an extension direction, The first end of each of the pair of shoulder straps is connected to an upper portion of the storage portion, The second end of each of the pair of shoulder belts is connected to a lower portion of the storage section so that a mounting position of the second end of the pair of shoulder belts to the storage section can be adjusted in a vertical direction of the storage section, The housing includes a back portion and a connecting member, The connecting member is provided on the back portion of the storage section, arranged to protrude outward from the back portion, and configured to be connectable to the second ends of each of the pair of shoulder straps.

2. 2. The backpack bag of claim 1, wherein the second end of each of the pair of shoulder straps is connected to a lower portion of the storage section so that the attachment position to the storage section can be adjusted in a width direction perpendicular to the vertical direction of the storage section.

3. the housing portion includes a plurality of connection portions connectable to the second end portion, The backpack according to claim 2 , wherein the plurality of connection parts are spaced apart from one another in the vertical direction and the width direction of the storage part.

4. The container includes a bottom, The backpack according to claim 3 , wherein the plurality of connection parts are provided on the back part and the bottom part.

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