Backpack-type device and backpack

Abstract

To provide a technique capable of reducing a burden on the lower back of a user wearing a backpack-type device.SOLUTION: A backpack-type device comprises a backpack to be worn by a user and a device attached to the backpack. The backpack includes a pair of shoulder belts to be worn by the user on both shoulders, a back plate to which the pair of shoulder belts is attached and the device is attached, a waist belt to be worn by the user around the waist, and a connection mechanism for connecting the back plate and the waist belt. The connection mechanism includes an elastic member with bending stiffness lower than that of the back plate. Force applied to the connection mechanism from one of the back plate and the waist belt is transmitted via the elastic member to the other of the back plate and the waist belt.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a backpack-type device and a backpack carrier. [Background technology]

[0002] Patent Document 1 discloses a backpack-type device that includes a backpack carrier worn by a user and a device attached to the backpack carrier. The backpack carrier includes a pair of shoulder belts worn by the user on both shoulders, a back plate to which the pair of shoulder belts are attached and to which the device is attached, a waist belt worn by the user around the waist, and a connection mechanism that connects the back plate and the waist belt. The connection mechanism includes a hinge that connects the waist belt to the back plate so as to be rotatable around an axis along the left-right direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2016 / 0255942 Summary of the Invention [Problem to be solved by the invention]

[0004] In the backpack-type device of Patent Document 1, a hinge is provided between the back plate and the waist belt, so when the user's posture changes from an upright posture to a forward-leaning posture or a backward-leaning posture, the back plate and the waist belt move in accordance with the change in the user's posture. However, in this configuration, when the user assumes a forward-leaning posture, a large load is applied to the user's waist, which may increase the burden on the user's waist. This specification provides a technology that can reduce the burden on the waist of a user wearing a backpack-type device. [Means for solving the problem]

[0005] The backpack-type device disclosed in this specification includes a backpack carrier worn by a user and a device attached to the backpack carrier. The backpack carrier includes a pair of shoulder belts worn by the user on both shoulders, a back plate to which the pair of shoulder belts are attached and to which the device is attached, a waist belt worn by the user around the waist, and a connection mechanism that connects the back plate and the waist belt. The connection mechanism includes an elastic member having a bending rigidity smaller than the bending rigidity of the back plate. A force applied to the connection mechanism from one of the back plate and the waist belt is transmitted to the other of the back plate and the waist belt via the elastic member.

[0006] The backpack disclosed in this specification is worn by a user to carry an object. The backpack comprises a pair of shoulder belts worn by the user on both shoulders, a back plate to which the pair of shoulder belts are attached and to which the object is detachably attached, a waist belt worn by the user around the waist, and a connection mechanism connecting the back plate and the waist belt. The connection mechanism comprises an elastic member having a bending stiffness smaller than the bending stiffness of the back plate. A force applied to the connection mechanism from one of the back plate and the waist belt is transmitted to the other of the back plate and the waist belt via the elastic member.

[0007] According to the above configuration, when the user's posture changes, the elastic member deforms, and the back plate and the waist belt each move in response to the change in the user's posture. Then, when the user bends forward, the back plate is lifted relative to the waist belt by the elastic restoring force generated by the elastic member. Specifically, the back plate is lifted relative to the waist belt, with the vicinity of the user's shoulders as a fulcrum. As a result, the load on the user's shoulders increases, but the load on the user's waist decreases. Therefore, according to the above configuration, the burden on the waist of a user wearing a backpack-type device (or a backpack carrier) can be reduced.

[0008] It should be noted that the phrase "elastic member having a bending rigidity less than that of the back panel" in this specification is interpreted as "the elastic member includes a portion having a bending rigidity even less than the portion of the back panel having the smallest bending rigidity." [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a view of the backpack-type device 2 according to the embodiment as viewed from the upper front left. [Diagram 2] FIG. 2 is a view of the power supply device 6 of the backpack-type device 2 according to the embodiment, seen from the front, lower right. [Diagram 3] 1 is a view of the back panel 12 of the backpack-type device 2 according to the embodiment, seen from the upper rear right. [Figure 4] 1 is a view of the upper part of a carrier body 8 of a backpack-type device 2 according to an embodiment, seen from the upper right and rear. [Diagram 5] 1 is a view of the back panel 12 of the backpack-type device 2 according to the embodiment, seen from the upper front left. [Figure 6] 4 is a cross-sectional view showing the structure near a lock mechanism 68 of the backpack-type device 2 according to the embodiment. FIG. [Figure 7] 1 is a view of the lower part of a carrier body 8 and a stand member 10 of a backpack-type device 2 according to an embodiment, viewed from the right. [Figure 8] 2 is a cross-sectional view showing a structure in the vicinity of a connection mechanism 20 of a backpack-type device 2 according to an embodiment of the present invention. [Figure 9] 2 is an exploded view showing a structure in the vicinity of a connection mechanism 20 of a backpack-type device 2 according to an embodiment. FIG. [Figure 10] 1 is a front view of an elastic member 84 of the backpack-type device 2 according to the embodiment. FIG. [Figure 11] 13 is a diagram showing an elastic member 84 attached to a waist belt 18 of the backpack-type device 2 according to the embodiment. FIG. [Figure 12] 1 is a diagram showing a stand member 10 of a backpack-type device 2 according to an embodiment as viewed from the upper rear right. [Figure 13] 2 is an exploded view showing the structure in the vicinity of a stand member 10 of a backpack-type device 2 according to an embodiment. FIG. [Figure 14] 1 is a view of the lower part of a carrier body 8 and a stand member 10 of a backpack-type device 2 according to an embodiment, viewed from the left. [Figure 15] 1 is a top view of a stand member 10 of a backpack-type device 2 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Representative and non-limiting examples of the present invention are described in detail below with reference to the drawings. This detailed description is intended simply to provide those skilled in the art with details for implementing preferred examples of the present invention, and is not intended to limit the scope of the present invention. Additionally, the additional features and inventions disclosed can be used separately or together with other features and inventions to provide further improved backpack-type devices and backpack carriers.

[0011] In addition, the combinations of features and steps disclosed in the following detailed description are not essential for implementing the present invention in the broadest sense, but are specifically described only to illustrate representative embodiments of the present invention. Furthermore, the various features of the following representative embodiments and the various features described in the claims do not have to be combined in the exact manner of the embodiments described herein or in the order listed in order to provide additional and useful embodiments of the present invention.

[0012] All features described in the specification and / or claims are intended to be disclosed individually and independently of one another as limitations to the specific features described in the original disclosure and claims, apart from the configuration of features described in the examples and / or claims. Furthermore, all numerical ranges and group or aggregate descriptions are intended to disclose intermediate configurations thereof as limitations to the specific features described in the original disclosure and claims.

[0013] In one or more embodiments, the elastic member may be located forward of the front surface of the backing.

[0014] According to the above-mentioned configuration, since the elastic member is located forward of the front surface of the back panel, the elastic member separates the back panel backward from the waist belt, which creates a gap between the user's back and the back panel, improving the breathability between the user's back and the back panel.

[0015] In one or more embodiments, the elastic member may include a plate portion that extends along the rear surface of the waist belt and is attached to the waist belt so as to prevent a change in posture relative to the waist belt, a fastening portion that is positioned rearward of the rear surface of the plate portion and is fastened to the front surface of the back panel by a specified fastener, and a connection portion that connects between the plate portion and the fastening portion.

[0016] According to the above-mentioned configuration, the back panel is spaced rearward from the waist belt by the elastic member, which creates a gap between the user's back and the back panel, thereby improving the breathability between the user's back and the back panel.

[0017] In one or more embodiments, the fastener portion may be located above an upper end of the plate portion.

[0018] According to the above configuration, the gap between the user's back and the backboard is larger than when the fastening portion is located below the upper end of the plate portion, and therefore the effect of improving the breathability between the user's back and the backboard is more pronounced.

[0019] In one or more embodiments, the connection portion may include a connection surface that is connected to the front surface of the plate portion and extends upward from an upper end of the plate portion. The connection surface may include a curved surface that curves away from an imaginary plane that is an imaginary extension of the front surface of the plate portion as it moves away from the upper end of the plate portion.

[0020] Since the fastening portion is disposed above the upper end of the plate portion, the connection portion may extend above the upper end of the waist belt. In this case, it is expected that the front surface of the connection portion (i.e., the connection surface) will come into contact with the user's waist or back while the user is using the backpack-type device. If the front surface of the connection portion comes into contact with the user's waist or back, this may cause discomfort to the user. According to the above configuration, the front surface of the connection portion includes a curved surface that curves backward as it extends upward. For this reason, the front surface of the connection portion is less likely to come into contact with the user's waist or back. This makes it possible to prevent discomfort to the user.

[0021] In one or more embodiments, when viewed from the front, the left-right width of the connection surface may monotonically decrease with increasing distance from the upper end of the plate portion.

[0022] If the left-right width of the connection surface monotonically increases with increasing distance from the upper end of the plate portion, there is a risk of a lack of space for arranging components other than the elastic member. With the above configuration, the left-right width of the connection surface monotonically decreases with increasing distance from the upper end of the plate portion, which makes it possible to prevent a lack of space for arranging components other than the elastic member.

[0023] In one or more embodiments, the connection portion may further include a recess formed by recessing the connection surface from the front to the rear. The fastening portion may be provided at a bottom of the recess.

[0024] According to the above configuration, the fastener for fastening the fastening portion can be retreated into the recess, thereby preventing the user from unintentionally touching the fastener.

[0025] In one or more embodiments, the elastic member may further include a contact surface that contacts the front surface of the back plate and a guide protrusion that protrudes rearward from the contact surface. The back plate may include a guide hole that receives the guide protrusion.

[0026] According to the above-mentioned configuration, the elastic member is prevented from moving in the up, down, left and right directions relative to the back plate, so that the elastic member can be positioned relative to the back plate in the up, down, left and right directions.

[0027] In one or more embodiments, when viewed from the side, the back panel may have a shape that curves backward at a location below the lower end of the fastening portion.

[0028] When a user uses the backpack-type device, it is expected that the waist belt will move backward and hit the backboard. If the waist belt hits the backboard, it may cause discomfort to the user wearing the backpack-type device. With the above configuration, the backboard is curved backward, so that the waist belt is less likely to hit the backboard. This makes it possible to prevent discomfort to the user.

[0029] In one or more embodiments, the back panel may include a back panel main body to which the equipment is removably attached, a support plate connected to the waist belt via the connection mechanism and capable of changing its vertical position relative to the back panel main body, and a locking mechanism that fixes the vertical position of the support plate relative to the back panel main body.

[0030] According to the above configuration, the user can adjust the position of the waist belt relative to the back panel body by changing the locking position of the support panel relative to the back panel body.

[0031] In one or more embodiments, the device may be a power supply device that includes a number of rechargeable secondary battery cells.

[0032] According to the above configuration, a user can carry the power supply device on his / her back to various places. As a result, even in a place where a connection to a commercial power source is not possible, the user can bring the power supply device and use the electronic device by supplying power from the power supply device to the electronic device.

[0033] (Example) The backpack-type device 2 shown in FIG. 1 includes a backpack carrier 4 worn by a user and a power supply device 6 detachably attached to the backpack carrier 4. The backpack-type device 2 can be used while the user is carrying it on his / her back, and can supply power to various electronic devices. The backpack carrier 4 includes a backpack carrier main body 8 and a stand member 10. The backpack carrier main body 8 includes a back plate 12 to which the power supply device 6 is detachably attached, a left shoulder belt 14 worn by the user on the left shoulder, a right shoulder belt 16 worn by the user on the right shoulder, a waist belt 18 worn by the user around the waist, and a connection mechanism 20 that connects the back plate 12 and the waist belt 18. In this specification, the front-rear direction, left-right direction, and up-down direction as seen from the user when the user is standing upright carrying the backpack-type device 2 on his / her back are defined as the front-rear direction, left-right direction, and up-down direction of the backpack-type device 2.

[0034] As shown in FIG. 2, the power supply device 6 has a substantially rectangular parallelepiped shape. The power supply device 6 includes a housing 22, a handle 24 (see FIG. 1), a power switch 26, a display LED 28, a charging connector 30, and a power cable 32 (partially not shown). Although not shown, a plurality of rechargeable secondary battery cells (e.g., lithium ion battery cells) are housed inside the housing 22. The handle 24 is attached to the upper part of the housing 22. The user can carry the power supply device 6 detached from the backpack 4 by holding the handle 24. The power switch 26 is disposed on the right side surface of the housing 22. The user can turn on / off the main power supply of the power supply device 6 by operating the power switch 26. The display LED 28 is disposed above the power switch 26 on the right side surface of the housing 22. The display LED 28 can display the remaining battery level of the power supply device 6, etc. The charging connector 30 is disposed below the power switch 26 on the right side surface of the housing 22. A user can charge the multiple secondary battery cells using power supplied from an external power source by inserting a charging plug (not shown) connected to an external power source into the charging connector 30. The power cable 32 extends downward from the lower side of the housing 22. A user can operate various electronic devices using power stored in the multiple secondary battery cells by connecting a power supply plug (not shown) provided at the end of the power cable 32 to the electronic devices. As shown in FIG. 1, the carrier 4 is provided with multiple cable holders 34 capable of holding the power cable 32. A user can run the power cable 32 around the carrier 4 by holding the power cable 32 in the multiple cable holders 34.

[0035] As shown in Fig. 3, the back panel 12 includes a back panel main body 36, a belt attachment plate 38, a slide plate 40, an upper engagement member 42, and a lower engagement member 44. The back panel main body 36 is made of a plastic material (e.g., polyamide). The belt attachment plate 38 is made of a plastic material (e.g., polyethylene). The slide plate 40 is made of a metal material (e.g., aluminum alloy). The upper engagement member 42 is made of a metal material (e.g., aluminum alloy). The lower engagement member 44 is made of a metal material (e.g., aluminum alloy).

[0036] As shown in FIG. 2, a latch 46 operable by a user is provided on the upper part of the housing 22 of the power supply device 6. A left engaging claw 48 and a right engaging claw 50 protruding downward are provided on the front lower part of the housing 22. As shown in FIG. 3, the upper engaging member 42 has a latch receiver 52 corresponding to the latch 46 (see FIG. 2) of the power supply device 6. The upper engaging member 42 is fixed to the upper part of the back panel main body 36. The lower engaging member 44 has a left receiving portion 54 and a right receiving portion 56 corresponding to the left engaging claw 48 (see FIG. 2) and the right engaging claw 50 (see FIG. 2) of the power supply device 6. The lower engaging member 44 is fixed to the lower part of the back panel main body 36. The user can attach the power supply device 6 to the back panel main body 36 by receiving the left engaging claw 48 and the right engaging claw 50 on the left receiving portion 54 and the right receiving portion 56 and engaging the latch 46 with the latch receiver 52. With the power supply unit 6 attached to the back panel body 36, the user can release the engagement between the latch 46 and the latch receiver 52 by operating the latch 46. With the engagement between the latch 46 and the latch receiver 52 released, the user can move the power supply unit 6 rearward and upward relative to the back panel body 36 to pull out the left engagement claw 48 and the right engagement claw 50 from the left receiving portion 54 and the right receiving portion 56, thereby removing the power supply unit 6 from the back panel body 36.

[0037] The belt attachment plate 38 is fixed to the front surface of the back panel main body 36. The belt attachment plate 38 is formed with attachment holes 58a, 58b, 58c, and 58d. As shown in FIG. 4, the left shoulder belt 14 has attachment buckles 60a and 60b at positions corresponding to the attachment holes 58a and 58b (see FIG. 3) at the rear thereof. The right shoulder belt 16 has attachment buckles 60c and 60d at positions corresponding to the attachment holes 58c and 58d (see FIG. 3) at the rear thereof. The user can attach the left shoulder belt 14 and the right shoulder belt 16 to the belt attachment plate 38 by attaching the attachment buckles 60a, 60b, 60c, and 60d to the attachment holes 58a, 58b, 58c, and 58d. In addition, the user can remove the left shoulder belt 14 and the right shoulder belt 16 from the belt attachment plate 38 by removing the attachment buckles 60a, 60b, 60c, 60d from the attachment holes 58a, 58b, 58c, 58d.

[0038] 3 and 5, the back panel body 36 is provided with a sleeve portion 62 that receives the slide plate 40 so that the slide plate 40 can slide in the up-down direction. The sleeve portion 62 has an opening 64 at the bottom. The slide plate 40 is inserted into the sleeve portion 62 through the opening 64. A plurality of window holes 66 are formed in the front and rear walls of the sleeve portion 62, allowing the slide plate 40 received in the sleeve portion 62 to be visible from outside the back panel body 36.

[0039] As shown in FIG. 5 and FIG. 6, the back plate 12 further includes a lock mechanism 68 for locking the slide plate 40 relative to the back plate body 36. The lock mechanism 68 includes a lock member 70, a shaft 72, and a coil spring 74. The lock member 70 is supported by the shaft 72 so as to be able to swing relative to the back plate 12. The coil spring 74 biases the lock member 70 forward relative to the back plate body 36 at a portion above the shaft 72. This causes a moment to act on the lock member 70 such that the lock member 70 rotates clockwise around the shaft 72 as viewed from the right. The lock member 70 also includes a protruding portion 76 protruding backward from the rear surface of the lock member 70. The protruding portion 76 is formed in a portion below the shaft 72, and is biased backward by the moment acting on the lock member 70. A through hole 78 is formed in the rear wall of the sleeve portion 62 at a position corresponding to the protruding portion 76. Furthermore, the slide plate 40 is formed with a plurality of engagement holes 80 arranged at a predetermined distance interval in the up-down direction. Normally, the protrusion 76 of the locking member 70 enters the through-hole 78 of the sleeve portion 62 while passing through one of the engagement holes 80 of the slide plate 40. This locks the slide plate 40 to the back plate main body 36.

[0040] The locking member 70 includes an operating section 82 that can be operated by a user. The operating section 82 is formed on the front surface of the locking member 70 in a portion above the shaft 72. When the user presses the operating section 82 against the biasing force of the coil spring 74, the protruding section 76 of the locking member 70 comes out of the engagement hole 80 of the slide plate 40 and the through hole 78 of the sleeve section 62, and the lock of the slide plate 40 to the back plate body 36 is released. In a state in which the lock of the slide plate 40 to the back plate body 36 is released, the user can slide the slide plate 40 relative to the back plate body 36. This allows the user to appropriately change the engagement hole 80 that is aligned with the protruding section 76 and the through hole 78. After that, when the user releases the pressing of the operating section 82 and passes the protruding section 76 through the engagement hole 80 of the slide plate 40, the slide plate 40 is locked to the back plate body 36 again. By performing the above series of operations, the user can appropriately change the lock position of the sliding plate 40 relative to the back panel body 36 in the vertical direction. Since the waist belt 18 (see FIG. 1) is attached to the sliding plate 40, the user can adjust the position of the waist belt 18 relative to the back panel body 36 by changing the lock position of the sliding plate 40 relative to the back panel body 36.

[0041] (Features Related to Connection Mechanism 20) 7, the connection mechanism 20 includes an elastic member 84 provided between the slide plate 40 and the waist belt 18. A force applied to the connection mechanism 20 from one of the back plate 12 and the waist belt 18 is transmitted to the other of the back plate 12 and the waist belt 18 via the elastic member 84. The elastic member 84 is made of a resin material (e.g., polyethylene).

[0042] As shown in FIG. 8, the elastic member 84 includes a fastening portion 90 fastened to the front surface of the slide plate 40 by a bolt 86 and a nut 88, a plate portion 94 accommodated in a pocket 92 provided on the rear surface of the waist belt 18, and a connecting portion 96 connecting the plate portion 94 and the fastening portion 90. The plate portion 94 is extended in the up-down and left-right directions. A front surface 96a of the connecting portion 96 is smoothly connected to the front surface of the plate portion 94 at the upper end of the plate portion 94. The front surface 96a of the connecting portion 96 includes a curved surface 98 that curves away from a virtual plane V that is an imaginary extension of the front surface of the plate portion 94 as it moves away from the upper end of the plate portion 94. The rear surface of the connecting portion 96 is connected to the rear surface of the plate portion 94 at the upper end of the plate portion 94. The rear surface of the plate portion 94 is bent so as to move rearward as it moves upward. The connecting portion 96 also includes a recess 100 formed by recessing the front surface 96a from the front to the rear. The fastening portion 90 is provided at the bottom of the recess 100. The fastening portion 90 includes a bushing attachment hole 102 formed by penetrating the bottom of the recess 100 in the front-rear direction, an annular portion 104 surrounding the bushing attachment hole 102, and an attachment groove 106 provided on the front surface of the annular portion 104. A ring bushing 108 is attached to the bushing attachment hole 102. An O-ring 110 is attached to the attachment groove 106. Washers 112 and 114 are attached to the bolt 86. The washer 112 is disposed between the head of the bolt 86 and the annular portion 104. The washer 114 is disposed between the slide plate 40 and the nut 88. The male thread portion of the bolt 86 is screwed into the female thread portion formed in the nut 88 after passing through the washer 112, the ring bushing 108, the through hole 116 formed in the slide plate 40, and the washer 114. The bolt 86 and the nut 88 fasten the slide plate 40 and the annular portion 104 of the fastening portion 90 in the front-rear direction via washers 112, 114. The O-ring 110 is pressed between the washer 112 and the annular portion 104.

[0043] As shown in FIG. 9, the elastic member 84 further includes an abutment surface 118 that abuts against the front surface of the slide plate 40, and guide protrusions 120a, 120b that protrude rearward from the abutment surface 118. The guide protrusions 120a, 120b fit into guide holes 122a, 122b formed in the slide plate 40, respectively. When the guide protrusions 120a, 120b fit into the guide holes 122a, 122b, the elastic member 84 is prohibited from moving in the up, down, left, and right directions relative to the slide plate 40. The connection portion 96 also includes a plurality of ribs 124 that protrude rearward from the rear surface of the connection portion 96. The connection portion 96 also includes a plurality of lightening recesses 126 that are formed by recessing the abutment surface 118 (and the front surfaces of the guide protrusions 120a, 120b) from rear to front.

[0044] As shown in FIG. 10, when viewed from the front, the plate portion 94 has a substantially rectangular shape with its longitudinal direction aligned with the left-right direction and its short side aligned with the up-down direction. The lower end of the connection portion 96 is connected to a part of the upper end of the plate portion 94. In FIG. 10, for convenience, the boundary B between the plate portion 94 and the connection portion 96 is illustrated by a dotted line. The boundary B can be said to be the upper end of the plate portion 94 or the lower end of the connection portion 96. The connection portion 96 also includes a constant width portion 128 that extends in the up-down direction with a substantially constant left-right width, and a reduced width portion 130 that is connected to the upper end of the constant width portion 128 and whose left-right width decreases as it extends upward. When viewed from the front, the constant width portion 128 has a substantially rectangular shape with its longitudinal direction aligned with the left-right direction and its short side aligned with the up-down direction. When viewed from the front, the reduced width portion 130 has a substantially triangular shape with its upper end as its apex. The left-right width of the connection portion 96 monotonically decreases with increasing distance from the upper end of the plate portion 94 .

[0045] As shown in Fig. 11, the pocket 92 is sewn to the waist belt 18 along a sewing line S in a state in which it covers the entire plate portion 94 (see Fig. 10). The sewing line S is defined so as to surround the upper end of the plate portion 94 excluding the boundary B, the left end of the plate portion 94, the right end of the plate portion 94, and the lower end of the plate portion 94. Therefore, the pocket 92 presses the plate portion 94 against the waist belt 18 and prohibits the plate portion 94 from moving in any direction relative to the waist belt 18. In this way, the plate portion 94 is attached to the waist belt 18 so as not to change its posture relative to the waist belt 18.

[0046] The connection part 96 of the elastic member 84 shown in Fig. 1 has a smaller bending rigidity than the back plate 12 (back plate main body 36, belt attachment plate 38, slide plate 40, upper engagement member 42, and lower engagement member 44). Therefore, when a user wearing the backpack-type device 2 takes a posture other than an upright posture (for example, a bending posture, a bending posture, or a twisted posture), the connection part 96 of the elastic member 84 deforms, and the back plate 12 and the waist belt 18 each move following the change in the user's posture. Note that the bending rigidity here means, for example, bending rigidity against bending around an axis along the left-right direction.

[0047] As shown in FIG. 7, the slide plate 40 includes a main body portion 132 extending in the up-down direction, an inclined portion 134 extending rearward and downward from the lower end of the main body portion 132, and an offset portion 136 extending downward from the lower end of the inclined portion 134. The main body portion 132 is inserted into the sleeve portion 62 (see FIG. 3) and is a portion to which the fastening portion 90 (see FIG. 8) is fastened. The inclined portion 134 is located in a position facing the plate portion 94 (see FIG. 8) of the elastic member 84 in the front-rear direction. The inclined portion 134 is inclined so as to move away from the plate portion 94 as it moves from the top to the bottom. A plurality of lightening holes 138 (see FIG. 3) are formed in the inclined portion 134 for the purpose of reducing the weight of the slide plate 40. The offset portion 136 extends approximately parallel to the main body portion 132 at a position offset rearward from the rear surface of the main body portion 132. When viewed from the side, the sliding plate 40 has a shape that is curved backward at a location below the lower end of the fastening portion 90. Therefore, even if the waist belt 18 moves backward from the position shown in FIG.

[0048] (Features Related to Stand Member 10) As shown in Fig. 12, the stand member 10 is formed by bending one hollow pipe. The stand member 10 is made of a metal material (for example, aluminum alloy). The stand member 10 includes a first upper connecting portion 140L extending leftward from one end of the hollow pipe, a curved portion 142L connected to the left end of the first upper connecting portion 140L and curved toward the rear, lower and left as it moves away from the left end of the first upper connecting portion 140L, a straight portion 144L connected to the lower end of the curved portion 142L and extending approximately linearly in the direction in which the lower end of the curved portion 142L faces (rear, lower and leftward), and a straight portion 144L connected to the lower end of the straight portion 144L and curved toward the rear, lower and left as it moves away from the lower end of the straight portion 144L. a left bent portion 148L connected to the lower end of the curved portion 146L and bent in a U-shape so as to face upward and forward as it moves away from the lower end of the curved portion 146L to the right; a straight portion 150L connected to the right end of the left bent portion 148L and extending approximately linearly in the direction in which the right end of the left bent portion 148L faces (upward and forward); a curved portion 152L connected to the front end of the straight portion 150L and curved so as to face right as it moves away from the front end of the straight portion 150L; a lower connecting portion 154 that extends in the left-right direction; a curved portion 152R that is connected to the right end of the lower connecting portion 154 and curves downward and rearward as it moves away from the right end of the lower connecting portion 154; a straight portion 150R that is connected to the rear end of the curved portion 152R and extends approximately linearly in the direction in which the rear end of the curved portion 152R faces (rearward and downward); a right-side bent portion 148R that is bent in a U-shape so as to move upward and forward as it moves away from the rear end of the straight portion 150R to the right; It comprises a curved portion 146R which curves in a forward, upper, leftward direction as it moves away from the right end of curved portion 148R, a straight portion 144R which is connected to the front end of curved portion 146R and extends approximately linearly in the direction in which the front end of curved portion 146R faces (forward, upper, leftward), a curved portion 142R which is connected to the upper end of straight portion 144R and curves in a leftward direction as it moves away from the upper end of straight portion 144R, and a second upper connecting portion 140R which is connected to the left end of curved portion 142R and extends in the left-right direction to the other end of the hollow pipe.The left side portions 140L, 142L, 144L, 146L, 148L, 150L and 152L of the stand member 10 and the right side portions 140R, 142R, 144R, 146R, 148R, 150R and 152R of the stand member 10 are mirror images of each other with respect to a plane extending in the front-rear and up-down directions.

[0049] In this embodiment, the first upper connecting portion 140L and the second upper connecting portion 140R are collectively referred to as the "upper connecting portions 140L, 140R," the curved portion 142L, the straight portion 144L, and the curved portion 146L are collectively referred to as the "first extension portion 156," the straight portion 150L and the curved portion 152L are collectively referred to as the "second extension portion 158," the curved portion 142R, the straight portion 144R, and the curved portion 146R are collectively referred to as the "third extension portion 160," and the straight portion 150R and the curved portion 152R are collectively referred to as the "fourth extension portion 162."

[0050] As shown in FIG. 13, the stand member 10 is non-rotatably attached to the slide plate 40 via an upper connecting member 164 and a lower connecting member 166 .

[0051] The upper connecting member 164 includes support portions 168L and 168R and screw holes 170a, 170b, and 170c. The support portions 168L and 168R include grooves 172L and 172R that extend from the left and right ends of the upper connecting member 164 and are open forward, and positioning pins 174L and 174R that protrude forward from the bottom surfaces of the grooves 172L and 172R. The grooves 172L and 172R receive the upper connecting portions 140L and 140R of the stand member 10. The bottom surfaces of the grooves 172L and 172R are semi-cylindrical surfaces that correspond to the outer peripheral surfaces of the upper connecting portions 140L and 140R. The positioning pins 174L and 174R enter positioning holes 176L and 176R (see FIG. 12) formed in the upper connecting portions 140L and 140R. When the positioning pins 174L, 174R are inserted into the positioning holes 176L, 176R, the upper connecting parts 140L, 140R are prohibited from moving in the extending direction (left-right direction) of the grooves 172L, 172R. Furthermore, through holes 178a, 178b, 178c aligned with the screw holes 170a, 170b, 170c are formed in the main body part 132 of the slide plate 40. The upper connecting member 164 is fixed to the slide plate 40 by screwing the screws 180a, 180b, 180c into the screw holes 170a, 170b, 170c while the screws 180a, 180b, 180c are passed through the through holes 178a, 178b, 178c. In a state in which the upper connecting member 164 is fixed to the slide plate 40, the upper connecting portions 140L, 140R are sandwiched between the upper connecting member 164 and the slide plate 40. As a result, the upper connecting portions 140L, 140R are connected to the slide plate 40.

[0052] The lower connecting member 166 includes a support portion 182 and screw holes 184a, 184b, and 184c. The support portion 182 includes a groove portion 186 that extends from the left end to the right end of the lower connecting member 166 and is open forward. The groove portion 186 receives the lower connecting portion 154 of the stand member 10. The bottom surface of the groove portion 186 is a semi-cylindrical surface that corresponds to the outer circumferential surface of the lower connecting portion 154. In addition, the offset portion 136 of the slide plate 40 is formed with through holes 188a, 188b, and 188c that are aligned with the screw holes 184a, 184b, and 184c. The lower connecting member 166 is fixed to the slide plate 40 by screwing the screws 190a, 190b, 190c into the screw hole portions 184a, 184b, 184c while the screws 190a, 190b, 190c are passed through the through holes 188a, 188b, 188c. When the lower connecting member 166 is fixed to the slide plate 40, the lower connecting portion 154 is sandwiched between the lower connecting member 166 and the slide plate 40. As a result, the lower connecting portion 154 is connected to the slide plate 40.

[0053] As shown in FIG. 7 and FIG. 14, the stand member 10 further includes a left leg 192L and a right leg 192R. The left leg 192L is formed on the lower surface of the left bent portion 148L. The right leg 192R is formed on the lower surface of the right bent portion 148R. The lower connecting member 166 also includes an abutment surface 194 that is parallel to the front-rear and left-right directions. The abutment surface 194 is located below the lower end of the slide plate 40. In this embodiment, regardless of the lock position of the slide plate 40 relative to the back plate main body 36, when the backpack type device 2 is viewed from above along the vertical direction with the left leg 192L, the right leg 192R, and the abutment surface 194 abutting against a placement surface (for example, the ground), the center of gravity of the backpack type device 2 overlaps with the support base surface formed by the left leg 192L, the right leg 192R, and the abutment surface 194. Therefore, the user can place the backpack-type device 2 on the placement surface by abutting the left leg 192L, the right leg 192R, and the contact surface 194 against the placement surface. Note that the support base surface here is a surface having a substantially triangular shape with the left leg 192L, the right leg 192R, and the contact surface 194 as vertices.

[0054] 15, when viewed from above, the upper connecting portions 140L, 140R are offset forward from the lower connecting portion 154. When viewed from above, the first extending portion 156 is offset leftward from the second extending portion 158. When viewed from above, the third extending portion 160 is offset rightward from the fourth extending portion 162.

[0055] 14 shows the position P1 of the front end of the upper connectors 140L and 140R when viewed from the left, the position P2 of the front end of the lower connector 154 when viewed from the left, and the position P3 of the lower end of the left leg 192L when viewed from the left. The distance between the positions P1 and P2 when viewed from the left is, for example, within a range of 40 mm to 130 mm, and is about 108 mm in this embodiment. Also, the angle formed by the straight line L1 connecting the positions P1 and P2 and the straight line L3 connecting the positions P2 and P3 when viewed from the left is, for example, 90 degrees or more, and is about 104 degrees in this embodiment. Also, the angle formed by the straight line L3 and the straight line L2 connecting the positions P1 and P3 when viewed from the left is, for example, 16 degrees or more, and is about 31 degrees in this embodiment.

[0056] 7 shows the position P4 of the front end of the upper connectors 140L and 140R when viewed from the right, the position P5 of the front end of the lower connector 154 when viewed from the right, and the position P6 of the lower end of the right leg 192R when viewed from the right. The distance between the positions P4 and P5 when viewed from the right is, for example, within a range of 40 mm to 130 mm, and is about 108 mm in this embodiment. Also, the angle formed by the line L4 connecting the positions P4 and P5 and the line L6 connecting the positions P5 and P6 when viewed from the right is, for example, 90 degrees or more, and is about 104 degrees in this embodiment. Also, the angle formed by the line L6 and the line L5 connecting the positions P4 and P6 when viewed from the right is, for example, 16 degrees or more, and is about 31 degrees in this embodiment.

[0057] (Modification) Equipment or objects to be carried other than the power supply unit 6 may be attached to the carrier 4. For example, a basket for storing items, a tank for storing liquid, or a working machine that can be used by a user may be attached to the carrier 4. The working machine referred to here may be, for example, a blower, a brush cutter, a hedge trimmer, a chain saw, a vacuum cleaner, or a sprayer.

[0058] The stand member 10 does not have to be formed by bending a single rod-shaped member. The stand member 10 may be formed by connecting a plurality of rod-shaped members to each other, for example.

[0059] Instead of using a hollow pipe for the stand member 10, a solid material may be used.

[0060] The stand member 10 may be connected to a location of the carrier body 8 other than the slide plate 40 (for example, the rear surface of the waist belt 18).

[0061] The means for connecting the stand member 10 to the carrier body 8 may be changed as appropriate. For example, the stand member 10 may be welded to the slide plate 40.

[0062] The shape of the stand member 10 may be changed as appropriate. As a result, the left bent portion 148L may be bent in a V-shape. The right bent portion 148R may be bent in a V-shape. When viewed from above, the upper connecting portions 140L and 140R may be offset rearward from the lower connecting portion 154. When viewed from above, the first extending portion 156 may be offset rightward from the second extending portion 158. When viewed from above, the third extending portion 160 may be offset leftward from the fourth extending portion 162. The angle between the straight line L1 and the straight line L3 may be less than 90 degrees. The angle between the straight line L3 and the straight line L2 may be less than 16 degrees. The angle between the straight line L4 and the straight line L6 may be less than 90 degrees. The angle between the straight line L6 and the straight line L5 may be less than 16 degrees.

[0063] The lower end of the lower connecting member 166 (i.e., the contact surface 194) may be located higher than the lower end of the sliding plate 40. In this case, the backpack-type device 2 may be placed on the placement surface by bringing the left leg 192L, the right leg 192R, and the lower end of the sliding plate 40 into contact with the placement surface.

[0064] The back panel body 36 and the sliding panel 40 may be replaced with a single plate. The power supply device 6, the stand member 10, and the connection mechanism 20 may each be attached to this plate. The vertical position of the waist belt 18 relative to this plate may not be changeable.

[0065] The material used for the elastic member 84 may be a material other than a resin material. For example, the material used for the elastic member 84 may be a rubber material.

[0066] The elastic member 84 may be a spring arranged to be compressed between the waist belt 18 and the slide plate 40. In this case, the material used for the elastic member 84 may be a metallic material.

[0067] The means for attaching the plate portion 94 to the waist belt 18 may be changed as appropriate. For example, the plate portion 94 may be riveted to the waist belt 18.

[0068] The shape of the elastic member 84 may be changed as appropriate. As a result, the fastening portion 90 may be disposed below the upper end of the plate portion 94. The front surface 96a of the connecting portion 96 may expand along the imaginary plane V. When viewed from the front, the left-right width of the connecting portion 96 may not monotonically decrease. The connecting portion 96 may not include a recess 100. The elastic member 84 may not include guide protrusions 120a, 120b.

[0069] When viewed from the side, the slide plate 40 does not have to have a shape that curves backward. That is, the slide plate 40 may extend linearly from the upper end to the lower end.

[0070] (Features of the embodiment) In one or more embodiments, the backpack-type device 2 includes a backpack carrier 4 worn by a user and a power supply unit 6 (an example of a device) attached to the backpack carrier 4. The backpack carrier 4 includes a pair of shoulder belts 14, 16 worn by the user on both shoulders, a back panel 12 to which the pair of shoulder belts 14, 16 are attached and to which the power supply unit 6 is attached, a waist belt 18 worn by the user around the waist, and a connection mechanism 20 that connects between the back panel 12 and the waist belt 18. The connection mechanism 20 includes an elastic member 84 having a bending stiffness smaller than the bending stiffness of the back panel 12. A force applied to the connection mechanism 20 from one of the back panel 12 and the waist belt 18 is transmitted to the other of the back panel 12 and the waist belt 18 via the elastic member 84.

[0071] In one or more embodiments, the backpack carrier 4 is worn by a user to carry a power supply device 6 (an example of an object to be carried). The backpack carrier 4 includes a pair of shoulder belts 14, 16 worn by the user on both shoulders, a back panel 12 to which the pair of shoulder belts 14, 16 are attached and to which the power supply device 6 is detachably attached, a waist belt 18 worn by the user around the waist, and a connection mechanism 20 that connects between the back panel 12 and the waist belt 18. The connection mechanism 20 includes an elastic member 84 having a bending stiffness smaller than the bending stiffness of the back panel 12. A force applied to the connection mechanism 20 from one of the back panel 12 and the waist belt 18 is transmitted to the other of the back panel 12 and the waist belt 18 via the elastic member 84.

[0072] According to the above configuration, when the user's posture changes, the elastic member 84 deforms, and the back panel 12 and the waist belt 18 each move following the change in the user's posture. Then, when the user bends forward, the back panel 12 is lifted relative to the waist belt 18 by the elastic restoring force generated by the elastic member 84. Specifically, the back panel 12 is lifted relative to the waist belt 18 with the vicinity of the user's shoulders as a fulcrum. As a result, the load on the user's shoulders increases, but the load on the user's waist decreases. Therefore, according to the above configuration, the burden on the waist of the user wearing the backpack-type device 2 (or the backpack carrier 4) can be reduced.

[0073] In one or more embodiments, the elastic member 84 is positioned forward of the front surface of the back panel 12 .

[0074] According to the above configuration, the elastic member 84 is located forward of the front surface of the back panel 12, and the elastic member 84 separates the back panel 12 rearward from the waist belt 18. This creates a gap between the user's back and the back panel 12, improving the breathability between the user's back and the back panel 12.

[0075] In one or more embodiments, the elastic member 84 extends along the rear surface of the waist belt 18 and includes a plate portion 94 that is attached to the waist belt 18 so as to prevent a change in posture relative to the waist belt 18, a fastening portion 90 that is positioned rearward of the rear surface of the plate portion 94 and fastened to the front surface of the back panel 12 by a bolt 86 and a nut 88 (an example of a specified fastener), and a connection portion 96 that connects between the plate portion 94 and the fastening portion 90.

[0076] According to the above configuration, the elastic member 84 separates the back panel 12 rearward from the waist belt 18. This creates a gap between the user's back and the back panel 12, improving the breathability between the user's back and the back panel 12.

[0077] In one or more embodiments, the fastener portion 90 is located above the upper end of the plate portion 94 .

[0078] According to the above configuration, the gap between the user's back and the back panel 12 is larger than when the fastening portion 90 is located below the upper end of the plate portion 94. Therefore, the effect of improving the breathability between the user's back and the back panel 12 is more significantly exhibited.

[0079] In one or more embodiments, the connecting portion 96 is connected to the front surface of the plate portion 94 and includes a front surface 96a (an example of a connecting surface) that extends upward from the upper end of the plate portion 94. The front surface 96a of the connecting portion 96 includes a curved surface 98 that curves away from an imaginary plane V that is an imaginary extension of the front surface of the plate portion 94 as it moves away from the upper end of the plate portion 94.

[0080] Since the fastening portion 90 is disposed above the upper end of the plate portion 94, the connecting portion 96 may protrude above the upper end of the waist belt 18. In this case, it is expected that the front surface 96a of the connecting portion 96 will hit the user's waist or back while the user is using the backpack-type device 2. If the front surface 96a of the connecting portion 96 hits the user's waist or back, the user may feel uncomfortable. According to the above configuration, the front surface 96a of the connecting portion 96 includes a curved surface 98 that curves backward as it goes upward. Therefore, the front surface 96a of the connecting portion 96 is less likely to hit the user's waist or back. Therefore, it is possible to suppress discomfort to the user.

[0081] In one or more embodiments, when viewed from the front, the left-right width of the front surface 96a of the connecting portion 96 monotonically decreases with increasing distance from the upper end of the plate portion 94.

[0082] If the left-right width of the front surface 96a of the connecting portion 96 monotonically increases with increasing distance from the upper end of the plate portion 94, there is a risk of there being insufficient space for arranging components other than the elastic member 84. According to the above configuration, the left-right width of the front surface 96a of the connecting portion 96 monotonically decreases with increasing distance from the upper end of the plate portion 94, so that there is less space for arranging components other than the elastic member 84.

[0083] In one or more embodiments, the connection portion 96 further includes a recess 100 formed by recessing the front surface 96a of the connection portion 96 from the front to the rear. The fastening portion 90 is provided at the bottom of the recess 100.

[0084] According to the above configuration, the bolt 86 can be retracted into the recess 100. This can prevent the user from touching the bolt 86 unintentionally.

[0085] In one or more embodiments, the elastic member 84 further includes an abutment surface 118 that abuts against the front surface of the back plate 12, and guide protrusions 120a, 120b that protrude rearward from the abutment surface 118. The back plate 12 includes guide holes 122a, 122b that receive the guide protrusions 120a, 120b.

[0086] According to the above configuration, the elastic member 84 is prevented from moving in the up, down, left and right directions relative to the back plate 12. This makes it possible to position the elastic member 84 relative to the back plate 12 in the up, down, left and right directions.

[0087] In one or more embodiments, when viewed from the side, the back panel 12 has a curved rearward at a point below the lower end of the fastening portion 90 .

[0088] As the user uses the backpack-type device 2, it is expected that the waist belt 18 will move backward and hit the back board 12. If the waist belt 18 hits the back board 12, it may cause discomfort to the user wearing the backpack-type device 2. With the above configuration, the back board 12 is curved backward, so that the waist belt 18 is less likely to hit the back board 12. This can prevent the user from feeling uncomfortable.

[0089] In one or more embodiments, the back panel 12 includes a back panel main body 36 to which the power supply unit 6 is removably attached, a sliding plate 40 (an example of a support plate) that is connected to the waist belt 18 via a connection mechanism 20 and whose vertical position relative to the back panel main body 36 can be changed, and a locking mechanism 68 that fixes the vertical position of the sliding plate 40 relative to the back panel main body 36.

[0090] According to the above configuration, the user can adjust the position of the waist belt 18 relative to the back panel main body 36 by changing the lock position of the slide panel 40 relative to the back panel main body 36.

[0091] In one or more embodiments, the device is a power supply 6 that includes a number of rechargeable secondary battery cells.

[0092] According to the above configuration, the user can carry the power supply device 6 to various places on his / her back. As a result, even in a place where a connection to a commercial power source is impossible, the user can bring the power supply device 6 and use the electronic device by supplying power from the power supply device 6 to the electronic device. [Explanation of symbols]

[0093] 2: backpack-type device, 4: backpack carrier, 6: power supply unit, 8: backpack carrier body, 10: stand member, 12: back panel, 14: left shoulder belt, 16: right shoulder belt, 18: waist belt, 20: connection mechanism, 22: housing, 24: handle, 26: power switch, 28: display LED, 30: charging connector, 32: power cable, 34: multiple cable holders, 36: back panel body, 38: belt attachment plate, 40: slide plate, 42: upper engagement member, 44: lower engagement member, 46: latch, 48: left side engagement claw, 50: right side engagement claw, 52: latch receiver, 54: left side receiving portion, 56: right side receiver Stopper portion, 58a: mounting hole, 58b: mounting hole, 58c: mounting hole, 58d: mounting hole, 60a: mounting buckle, 60b: mounting buckle, 60c: mounting buckle, 60d: mounting buckle, 62: sleeve portion, 64: opening, 66: multiple window holes, 68: locking mechanism, 70: locking member, 72: shaft, 74: coil spring, 76: protrusion, 78: through hole, 80: multiple engagement holes, 82: operating portion, 84: elastic member, 86: bolt, 88: nut, 90: fastening portion, 92: pocket, 94: plate portion, 96: connection portion, 96a: front surface, 98: curved surface, 100: recess, 102: bracket bushing mounting hole, 104: annular portion, 106: mounting groove, 108: ring bushing, 110: O-ring, 112: washer, 114: washer, 116: through hole, 118: contact surface, 120a: guide protrusion, 120b: guide protrusion, 122a: guide hole, 122b: guide hole, 124: multiple ribs, 126: multiple recesses, 128: fixed width portion, 130: reduced width portion, 132: main body portion, 134: inclined portion, 136: offset portion, 138: multiple holes, 140L: first upper connecting portion, 140R: second upper connecting portion, 142L: curved portion, 142R: curved portion, 144L: Straight portion, 144R: straight portion, 146L: curved portion, 146R: curved portion, 148L: left bent portion, 148R: right bent portion, 150L: straight portion, 150R: straight portion, 152L: curved portion, 152R: curved portion, 154: lower connecting portion, 156: first extension portion, 158: second extension portion, 160: third extension portion, 162: fourth extension portion, 164: upper connecting member, 166: lower connecting member, 168L: support portion, 168R: support portion, 170a, 170b, 170c: screw hole portion, 172L: groove portion, 172R: groove portion, 174L: positioning pin, 174R: positioning pin, 176L: positioning hole,176R: Position determination hole, 178a, 178b, 178c: Through hole, 180a, 180b, 180c: Neck, 182: Support part, 184a, 184b, 184c: Neck hole, 186: Groove, 188a, 188b, 188c: Through hole, 190a, 190b, 190c: Neck, 192L: Left foot, 192R: Right foot, 194: When the surface,

Claims

1. The backpack that the user wears, It includes a device that can be attached to the aforementioned backpack frame, The aforementioned backpack frame is The aforementioned user wears a pair of shoulder straps over both shoulders, The pair of shoulder straps are attached to the back plate to which the equipment is attached, The aforementioned waist belt worn by the user around the waist, It includes a connecting mechanism that connects the back plate and the waist belt, The connection mechanism includes an elastic member having a bending rigidity less than that of the back plate. A backpack-type device in which the force applied to the connecting mechanism from one of the back plate and the waist belt is transmitted to the other of the back plate and the waist belt via the elastic member.

2. The backpack-type device according to claim 1, wherein the elastic member is positioned in front of the front surface of the back plate.

3. The elastic member is A plate portion that extends along the rear surface of the waist belt and is attached to the waist belt so as not to change the posture relative to the waist belt, A fastening portion is positioned behind the rear surface of the plate portion and fastened to the front surface of the back plate by a predetermined fastener, The backpack-type device according to claim 2, further comprising a connecting portion that connects the plate portion and the fastening portion.

4. The backpack-type device according to claim 3, wherein the fastening portion is positioned above the upper end of the plate portion.

5. The aforementioned connecting portion is connected to the front surface of the plate portion and has a connecting surface that extends upward from the upper end of the plate portion. The backpack-type device according to claim 3, wherein the connecting surface includes a curved surface that curves away from a virtual plane that virtually extends the front surface of the plate portion as it moves away from the upper end of the plate portion.

6. The backpack-type device according to claim 5, wherein, when viewed from the front, the left-right width of the connecting surface decreases monotonically as it moves away from the upper end of the plate portion.

7. The aforementioned connecting portion further includes a recess formed by indenting the connecting surface from front to rear, The fastening portion is provided at the bottom of the recess, according to claim 5, for the backpack-type device.

8. The elastic member further comprises a contact surface that abuts against the front surface of the back plate, and a guide projection that protrudes rearward from the contact surface. The backpack-type device according to claim 3, wherein the back plate is provided with guide holes for receiving the guide projections.

9. The backpack-type device according to claim 3, wherein, when viewed from the side, the back plate has a shape that curves backward at a point below the lower end of the fastening portion.

10. The aforementioned back panel is The aforementioned device is attached to a back panel body, A support plate, which is connected to the waist belt via the aforementioned connection mechanism and whose vertical position relative to the back panel body can be changed, The backpack-type device according to claim 1, further comprising a locking mechanism for fixing the vertical position of the support plate with respect to the back plate body.

11. The backpack-type device according to any one of claims 1 to 10, wherein the device is a power supply unit including a plurality of rechargeable secondary battery cells.

12. A backpack carrier worn by the user to transport goods, The aforementioned user wears a pair of shoulder straps over both shoulders, The pair of shoulder straps are attached to a back panel to which the transported items are detachably attached, The aforementioned waist belt worn by the user around the waist, It includes a connecting mechanism that connects the back plate and the waist belt, The connection mechanism includes an elastic member having a bending rigidity less than that of the back plate. A carrying frame in which the force applied to the connecting mechanism from one of the back plate and the waist belt is transmitted to the other of the back plate and the waist belt via the elastic member.

Images