Search

DE-212025000122-U1 - Backplate adjustment device and backpack

DE212025000122U1DE 212025000122 U1DE212025000122 U1DE 212025000122U1DE-212025000122-U1

Abstract

Backplate adjustment device for adjusting the position of a backplate (2) on a backpack, characterized in that it comprises: a fixed seat base (4) which has a sliding track (12) extending along a first direction, and whose two side walls are each provided with a guide groove (15) extending along the first direction; wherein the guide groove (15) has several uniformly spaced detent receptacles (16) along its direction of extension, and a partition (17) is arranged between each adjacent detent receptacle (16); wherein the detent receptacles (16) are symmetrically distributed in the guide grooves (15) on both sides of the fixed seat base (4) and are each assigned to one another; a sliding part (5) of which both ends are each provided with a clamping structure suitable for engaging the groove walls of the guide groove (15) so that the sliding part (5) is displaceable within the guide groove (15) along the first direction; wherein the sliding part (5) simultaneously slidably interacts with the fixed seat base (4) along the slide track (12) in the first direction; an actuating element (6) which is movably arranged on the outside of the sliding part (5) and is suitable for pressing along a second direction perpendicular to the first direction; a telescopic element assembly consisting of two telescopic elements (7) arranged inside the sliding part (5), wherein the two telescopic elements (7) each bear against opposite sides of the actuating element (6); wherein the telescopic element assembly is suitable to be slidably connected along a third direction perpendicular to the first and second directions or an extension thereof relative to the sliding part (5); wherein the two ends of the telescopic elements (7) engage the groove walls of the guide groove (15), and an engagement end piece (19) of the telescopic elements (7) projecting into the guide groove (15) is positively engaged in a detent receptacle (16) and is locked there in a first position; wherein the telescopic elements (7) are in an unlocked state when their engagement end piece (19) is located outside the detent receptacle (16) in a second position, and wherein the telescopic elements (7) together with the sliding part (5) are displaceable within the guide groove (15) along the first direction; wherein each of the telescopic elements (7) has a spring receptacle (18); and a spring element which is arranged in the spring receptacle (18), wherein one end of the spring element rests against the sliding part (5) and the other end against the bottom of the spring receptacle (18) is positioned to exert a spring force on the respective telescopic element (7) so that the telescopic element (7) is held in the first position in the detent receptacle (16) when the force is released; wherein by pressing the actuating element (6) along the second direction, the telescopic element assembly is moved into the second position by overcoming the spring force of the spring element along the third direction or its extension direction; wherein the sliding part (5) is moved along the first direction and overcomes the partition (17) to perform a position adjustment to an adjacent detent receptacle (16); and wherein, after releasing the actuating element (6), the spring force of the spring element moves the telescopic elements (7) back into the first position along a direction perpendicular to the third direction, so that the engagement end (19) of the telescopic elements (7) engages and locks again in the adjacent detent receptacle (16), and at the same time the actuating element (6) is returned to its initial position.

Assignees

  • ANTA CHINA CO LTD

Dates

Publication Date
20260513
Application Date
20250625
Priority Date
20240625

Claims (10)

  1. Backplate adjustment device for adjusting the position of a backplate (2) on a backpack, characterized in that it comprises: a fixed base (4) which has a sliding track (12) extending along a first direction, and the side walls of which are each provided with a guide groove (15) extending along the first direction; wherein the guide groove (15) has several uniformly spaced detent receptacles (16) along its direction of extension, and a partition (17) is arranged between each adjacent detent receptacle (16); wherein the detent receptacles (16) are symmetrically distributed in the guide grooves (15) on both sides of the fixed base (4) and are each assigned to one another; a sliding part (5) whose two ends are each provided with a clamping structure suitable for engaging the groove walls of the guide groove (15), so that the sliding part (5) is displaceable within the guide groove (15) along the first direction; wherein the sliding part (5) simultaneously slidably interacts with the fixed base (4) along the slide track (12) in the first direction; an actuating element (6) which is movably arranged on the outside of the sliding part (5) and is suitable for pushing along a second direction perpendicular to the first direction; a telescopic element assembly consisting of two telescopic elements (7) which are arranged inside the sliding part (5), wherein the two telescopic elements (7) each bear against opposite sides of the actuating element (6); wherein the telescopic element assembly is suitable for pushing along a third direction perpendicular to both the first and second directions. or in an extension direction thereof relative to the sliding part (5) being slidably connected; wherein the two ends of the telescopic elements (7) engage the groove walls of the guide groove (15), and an engagement end piece (19) of the telescopic elements (7) projecting into the guide groove (15) is positively engaged in a detent receptacle (16) and is locked there in a first position; wherein the telescopic elements (7) are in an unlocked state when their engagement end piece (19) is outside the detent receptacle (16) in a second position, and wherein the telescopic elements (7) together with the sliding part (5) are displaceable within the guide groove (15) along the first direction; wherein each of the telescopic elements (7) has a spring receptacle (18); and a spring element arranged in the spring receptacle (18), wherein one end of the spring element rests against the sliding part (5) and the other end rests against the base of the spring receptacle (18) to exert a spring force on the respective telescopic element (7) so that the telescopic element (7) is held in the first position in the detent receptacle (16) when unforced; wherein by pressing the actuating element (6) along the second direction, the telescopic element assembly is moved into the second position by overcoming the spring force of the spring element along the third direction or its extension direction; wherein the sliding part (5) is moved along the first direction and overcomes the partition (17) to perform a position adjustment to an adjacent detent receptacle (16); and wherein, after the actuating element (6) is released, the spring force of the spring element moves the telescopic elements (7) back to the first position along a direction perpendicular to the third direction, so that the engagement end piece (19) of the telescopic elements (7) engages again in the adjacent detent receptacle (16) and locks, and at the same time the actuating element (6) is returned to its initial position.
  2. Backplate adjustment device according to Claim 1 , characterized in that the actuating element (6) has mutually facing first contact surfaces (29) and second contact surfaces (30), wherein both the first contact surface (29) and the second contact surface (30) are designed as inclined surfaces converging towards each other along the second direction, and wherein the first contact surface (29) and the second contact surface (30) each interact with inclined contact surfaces of the two telescopic elements (7).
  3. Backplate adjustment device according to Claim 2 , characterized in that the telescopic elements (7) each have a sliding groove (23) extending along the third direction, and that the sliding part (5) has a sliding pin (24) which is guided slidingly in the sliding groove (23); wherein a sliding clearance is provided between the sliding pin (24) and the bottom of the sliding groove (23).
  4. Backplate adjustment device according to Claim 3 , characterized in that the end face of the telescopic elements (7) facing the locking receptacles (16) has a first guide chamfer (21), and that the partition (17) has a second guide chamfer (22) cooperating with the first guide chamfer (21).
  5. Backplate adjustment device according to Claim 1 , characterized in that the sliding part (5) further comprises a cover plate (8), wherein the cover plate (8) has a clearance corresponding to the actuating element (6) to allow the actuating element (6) to be pressed along the second direction; wherein an intermediate space (20) is provided between the cover plate (8) and the sliding part (5), through which a corresponding section of the back plate (2) is passed and arranged in this intermediate space (20).
  6. Backplate adjustment device according to Claim 5 , characterized in that an inwardly recessed recess (13) is provided in the middle of the sliding track (12) of the fixed seat base (4), which is in contact with the sliding track (12); and that the sliding part (5) has a sliding end (14) which slidably interacts with the recess (13).
  7. Backpack, characterized in that it comprises: a backpack body (1), a back panel (2), shoulder straps (3) and an adjustment device, wherein the adjustment device is a back panel adjustment device according to one of the Claims 1 until 6 is designed; wherein the back plate (2) is movably connected to the backpack body (1), and the adjustment device is fixedly connected to the backpack body (1) to control the position of the back plate (2) relative to the backpack body (1); wherein one end of each shoulder strap (3) is fixedly connected to the backpack body (1) and another end is fixedly connected to the back plate (2).
  8. Backpack after Claim 7 , characterized in that it further comprises a connecting strap, wherein the connecting strap is designed as a U-shaped strap, the bottom section and both end sections of which are firmly attached to the back of the backpack body (1) facing the back area; wherein the back plate (2) is passed through both sides of the U-shaped band and is movably connected to the backpack body (1) via the adjustment device.
  9. Backpack after Claim 8 , characterized in that the adjustment device is integrated between the backpack body (1) and the back plate (2), and that the actuating element (6) and the cover plate (8) are exposed on a side of the back plate (2) facing away from the backpack body (1), wherein the fixed base (4) is firmly connected to the backpack body (1).
  10. Backpack after Claim 9 , characterized in that several positioning marks are provided on the side of the backpack body (1) facing the back plate (2), wherein the back plate (2) is displaceable along the first direction and thereby releases the positioning marks to indicate a release of the actuating element (6) so that the telescopic element assembly is locked in the first position.

Description

Technical field: The present utility model relates to the field of backpack design, in particular a back panel adjustment device and a backpack. State of the art: With modern society's increasing focus on children's health, the design and functionality of children's backpacks, essential for their daily learning and lives, are also receiving more attention. Especially in growing children, changes in height and rapid physical development are common, making it difficult for conventional, fixed-size backpacks to meet their needs. While conventional fixed-size backpacks take most children's heights into account in their design, there are significant differences in size between children, and height changes considerably with age. Therefore, fixed-size backpacks often fail to meet the individual needs of each child, which can lead to discomfort, instability, or even health problems when worn. Content of the invention: The present invention aims to overcome the existing or aforementioned shortcomings or problems of the prior art and to provide a back panel adjustment device and a backpack. The backpack is equipped with the back panel adjustment device and allows the position of the back panel to be adjusted according to the individual needs of the user, thereby effectively reducing the strain experienced when carrying it. To solve the problem underlying the present invention, the following technical solutions are proposed in the individual embodiments of the utility model, without, however, being limited thereto: The first technical solution concerns a backplate adjustment device for adjusting the position of a backplate on a backpack, comprising: - a fixed seat base, which has a sliding track extending along a first direction, and whose two side walls are each provided with a guide groove extending along the first direction; wherein the guide groove has several uniformly spaced detent receptacles along its direction of extension, and a partition is arranged between each adjacent detent receptacle; wherein the detent receptacles in the guide grooves on both sides of the fixed seat base are symmetrically distributed and each is assigned to the other; - a sliding part, both ends of which are each provided with a clamping structure suitable for gripping the groove walls of the guide groove, so that the sliding part is displaceable within the guide groove along the first direction; wherein the sliding part simultaneously interacts with the fixed base in a sliding manner along the slide track in the first direction; - an actuating element which is movably arranged on the outside of the sliding part and is suitable for pushing along a second direction perpendicular to the first direction; - a telescopic element assembly comprising two telescopic elements arranged inside the sliding part, the two telescopic elements bearing against opposite sides of the actuating element; wherein the telescopic element assembly is suitable for being slidably connected to the sliding part along a third direction perpendicular to the first and second directions, or an extension thereof; wherein the two ends of the telescopic elements engage the groove walls of the guide groove, and an engagement end piece of the telescopic elements projecting into the guide groove is positively engaged in a detent receptacle and is locked there in a first position; wherein the telescopic elements are in an unlocked state when their engagement end piece is outside the detent receptacle in a second position, and wherein the telescopic elements together with the sliding part are displaceable within the guide groove along the first direction; wherein each of the telescopic elements has a spring receptacle; - and a spring element which is arranged in the spring receptacle, wherein one end of the spring element rests on the sliding part and the other end rests on the bottom of the spring receptacle to exert a spring force on the respective telescopic element, so that the telescopic element is held in the first position in the detent receptacle in the force-free state; by pressing the actuating element along the second direction the telescopic elements The assembly is moved into the second position by overcoming the spring force of the spring element along the third direction or its extension direction; wherein the sliding part is moved along the first direction and overcomes the partition to perform a position adjustment to an adjacent detent receptacle; and wherein, after the actuating element is released, the spring force of the spring element moves the telescopic elements back into the first position along a direction perpendicular to the third direction, so that the engagement end of the telescopic elements engages and locks again in the adjacent detent receptacle, and at the same time the actuating element is returned to its initial position. The second technical solution is based on the first technical solution, wherein the actuating element has mutually fac