Device for attaching a load to a person's back

Abstract

The invention relates to a device for attaching a load to a person's back, comprising a back plate (1) to be arranged in the back area and at least one curved bracket (2, 3) connected to the back plate (1) for extending over the person's shoulder area. Known devices of this kind have the disadvantage that they are difficult to adapt to different people. The task of designing such a device in such a way that it can be flexibly adapted to different wearers is solved by making the clamp or each clamp (2, 3) rotatable about a horizontal axis (4) relative to the back plate (1) when the device is applied to the person and lockable in at least two positions of the rotational movement.

Description

[0001] The invention relates to a device for attaching a load to the back of a person according to the preamble of claim 1.

[0002] EP 3 108 764 A1 discloses a backpack carrying frame with a multi-part shoulder frame, wherein the first shoulder frame and the second shoulder frame are each hinged to each other or to a back frame. The hinged connections may be ball joints. The second shoulder frame is thus freely movable.

[0003] The subject matter of EP 3 131 498 A4 and WO 2011 / 124781 A3 are exoskeletons having rigid shoulder straps.

[0004] US 2021 / 322246 A1 and CN 112223266 A as well as EP 3 376 895 A4 show exoskeletons with non-adjustable chest support plates instead of shoulder straps.

[0005] The subject of KR 1023761172 B1 is a combat suit with a motor-driven, adjustable chest plate.

[0006] DE 649904 C shows a carrying frame for backpacks with shoulder straps.

[0007] Finally, EP 1 301 375 A1 and DE 2 925 484 A1 show safety bars from the vehicle sector, whereby a person can be secured in a seat.

[0008] Based on the first-mentioned publication, the task is to design a device for attaching a load to the back of a person in such a way that it can be flexibly adapted to different carriers and is easy to put down and store.

[0009] This object is achieved by a device having the characterizing features of claim 1. Advantageous embodiments as well as an exoskeleton equipped with such a device can be found in the subclaims.

[0010] The invention relates to a device for securing a load to a person's back, comprising a back plate arranged in the back area and at least one curved clasp connected to the back plate for engaging over the person's shoulder area. When the device is applied to the person, the clasp or clasps can be rotated relative to the back plate about a horizontal axis and locked in at least two rotational positions. This allows the device to be easily put on and taken off, as well as locked in various positions of the clasp(s).

[0011] Preferably, two braces are provided which span the left and right shoulder area of ​​the person.

[0012] In a preferred embodiment, a chest pad is provided at the end of the or each brace for attachment to the person's chest area. This makes the device more comfortable to wear.

[0013] Preferably, the device has connecting devices extending from the back plate for fastening a textile upper body connection, which, together with the back plate, encompasses the thorax of the person.

[0014] Ideally, the braces are sized so that they do not touch the person's shoulder area, in order to avoid rubbing and thus skin or muscle irritation.

[0015] The locking mechanism is preferably achieved via a locking pin located in the back plate and interacting with a gear. The locking mechanism can preferably be released via a Bowden cable running along one of the two clamps and with an operating lever attached to it.

[0016] Preferably, each clasp is arranged on the back plate so that it can be adjusted in height to allow adaptation to different wearers.

[0017] The invention also relates to an exoskeleton with a device having the features mentioned.

[0018] An embodiment of the invention is described in more detail below with reference to the accompanying drawings, which show: Fig. 1 a perspective view of a device according to the invention from an oblique rear using the example of an exoskeleton; Fig. 2 an enlarged view of the device from Fig. 1 without the back plate and in exploded view; Fig. 3 a reduced representation according to a part of Fig. 2 in assembled state; Fig. 4: a cross-section through the adjustment device for the clasps perpendicular to axis 4 and through point A of Fig. 2 in the locked position; and Fig. 5: a representation according to Fig. 4 in the dissolved state.

[0019] At the Fig. The device shown in Figure 1 for attaching a load to the back of a person (not shown) is a partially illustrated exoskeleton. This exoskeleton has a back plate 1 for attaching to the back of a person. Two clasps 2 and 3 are attached to the upper area of ​​the back plate 1. When the device is attached, i.e., when the back plate 1 is on the person's back, these clasps can engage over the person's shoulders. The back plate 1 and the clasps 2 and 3 can be made of metal, plastic, or a composite material.

[0020] In the lower and upper areas of the back plate 1, attachment devices 13 are shown, to which a textile vest is attached. This is not shown in detail and serves to attach the back plate 1 to the person's thorax. For this purpose, a strap of the vest is threaded through a connection point 13 and then the hook strap attached to it is fixed with the loop strap of the vest, which is not shown in detail. The back plate 1 has two rails 14, which run vertically next to and parallel to each other and guide a carriage 15, which is movable vertically along the rails 14. Within the back plate 1, there are holes 16 in which a Fig. 2 and Fig. 3, so that the carriage 15 can be fixed at different positions along the rails 14 by the locking pin 10 engaging in the corresponding bores 16.

[0021] The two braces 2 and 3, which can span the person's right and left shoulders, are connected to the slide 15 in a manner described below. Chest pads 7 and 8 are located at the ends 5 and 6 of these braces, respectively. These are support plates that, with appropriate adjustment of braces 2 and 3, can rest on the person's chest area to the left and right of the sternum.

[0022] In Fig. 2 shows an operating lever 12 at the front end of a clasp 2, with which the fixation of the clasps 2 and 3 in a certain rotational position can be locked and unlocked via a Bowden cable 11, so that after actuating the operating lever 12 the clasps 2 and 3 can be rotated upwards and backwards.

[0023] In addition, Fig. 2 shows an exploded view of the fastening and adjustment mechanism for the clasps 2 and 3, but without the back plate 1. The carriage 15 is shown in detail, as well as the fastening plates and screws (not shown in more detail) for connecting it to the two rails 14. Part of this carriage 15 is a housing which, in the exploded view, is separate from the carriage 15 and which contains a shaft which carries a gear in the area of ​​this housing. In addition, within the carriage 15 or the housing arranged thereon there is a rack 17 which runs perpendicular to the vertical and in the direction of the back plate 1 and meshes with the gear 9. At the ends of the shaft, which runs along the axis 4, are the receiving devices for the two clasps 2 and 3, which are not described in detail. The clasps 2 and 3 are attached using a screw connection.

[0024] A detail from Fig. 2, but without the clips and the Bowden cable, is in Fig. 3 shown. Fig. Figure 3 also shows only a partial exploded view of the assembly. In the center, a shaft along axis 4 is visible, on which the gear 9 is non-rotatably mounted. Furthermore, Fig. 3 the locking bolt 10, which serves to adjust the height of the slide 15 along the vertical rails 14 of the back plate 1 and can engage in the corresponding holes 16 in the back plate 1.

[0025] A cross-section through Fig. 2 transverse to the axis 4 and at point A is in the Fig. 4 and Fig. 5. This shows Fig. 4 the locked state and Fig. 5 the released state between gear 9 and rack 17. Here you can see again in detail the carriage 15, on which the housing with the rack 17 is located, which meshes with the gear 9, the central axis of which is the Fig. 2 and Fig. 3 corresponds to the axis 4 shown. Furthermore, the Bowden cable 11 is shown, by operating the operating lever 12 ( Fig. 1) the connection between the rack 17 and the gear 9 can be locked and unlocked, so that the locking between the rack 17 and the gear 9 caused by the compression spring 18 is released by actuating the lever 12 and the gear 9 can rotate freely relative to the rack 17, whereby the clasps 2 and 3 can be lifted by rotating them around the axis 4.

[0026] The Fig. 4 and Fig. 5 also show a slide rail 20 and a rack adapter 19 which is mounted thereon in a linearly displaceable manner and contains a rack 17 which is in engagement with the gear 9 and either locks or releases it, depending on the actuation of the Bowden cable 11 via the operating lever 12.

[0027] The device described works as follows.

[0028] First, the entire device is placed on the back of a person, with the back plate 1 positioned behind the person's back. The back plate 1 is then attached to the textile vest, which the person is already wearing, via the connection devices 13. Then, the clasps 2 and 3 are rotated forward / downward around the axis 4 so that they Fig. 1, and the chest pads 7 and 8 come into contact with the person's chest. Clasps 2 and 3 can then be pushed slightly further forward to ensure a secure fit of the device on the person. In this position, clasps 2 and 3 do not touch the person's shoulders, but rather overlap them to ensure maximum comfort.

[0029] When closed or locked ( Fig. 4) a tensile force is generated by the Bowden cable 11, which overcomes the compressive force of the compression spring 18 and thus pulls the rack adapter 19 towards itself. The rack adapter 19 is mounted on the slide rail 20 for linear displacement and also contains the rack 17, which now engages with the gear 9 and locks it. In this state, the gear 9 and thus the clamps 2 and 3 cannot be adjusted or released. When the operating lever 12 is operated, the Bowden cable 11 is loosened and thus the compressive force of the compression spring 18 is no longer overcome ( Fig. 5). This now pushes the rack adapter 19 on the slide rail 20 away from its original position, thereby releasing the engagement between gear 9 and rack 17. Gear 9 is then freely movable again, and clamps 2 and 3 can rotate freely.

[0030] Before starting work or even during work (by a second person), the height of the mechanism around which the clamps 2 and 3 rotate can be adjusted by pulling the locking pin 10 against the action of a spring (not shown) and then moving the entire carriage 15 with the clamps 2 and 3 arranged on it up or down. In a position that is comfortable for the user, the locking pin is released again and inserted into one of the holes 16 in the back plate 1. In this way, the height of the clamps 2 and 3 can be adjusted in such a way that comfortable working is always possible without the clamps 2 and 3 touching the person's shoulders. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 3 108 764 A1

[0002] EP 3 131 498 A4

[0003] WO 2011 / 124781 A3

[0003] US 2021 / 322246 A1

[0004] CN 112223266 A

[0004] EP 3 376 895 A4

[0004] KR 1023761172 B1

[0005] DE 649904 C

[0006] EP 1 301 375 A1

[0007] DE 2 925 484 A1

[0007]

Claims

[1] Device for attaching a load to the back of a person, comprising a back plate (1) to be arranged in the area of ​​the back and at least one curved clasp (2, 3) connected to the back plate (1) for engaging over the shoulder area of ​​the person, characterized by that the or each clasp (2, 3) is rotatable about a horizontal axis (4) relative to the back plate (1) when the device is applied to the person and can be locked in at least two positions of the rotational movement. [2] Device according to claim 1, characterized by that two braces (2, 3) are provided which overlap the left and right shoulder area of ​​the person. [3] Device according to one of the preceding claims, characterized by that at the end (5, 6) of the or each clasp (2, 3) a chest pad (7, 8) is provided for connection to the chest area of ​​the person. [4] Device according to one of the preceding claims, characterized bythat in the back plate (1) connection devices (13) are provided for fastening a textile upper body connection, for example a textile vest. [5] Device according to one of the preceding claims, characterized by that the or each clasp (2, 3) does not touch the shoulder area of ​​the person. [6] Device according to one of the preceding claims, characterized by that the locking is effected via a locking pawl located in the back plate (1) and interacting with a gear wheel (9). [7] Device according to one of the preceding claims, characterized by that the locking mechanism can be released manually via a Bowden cable (11) guided along a clasp (2) with an operating lever (12) arranged thereon. [8] Device according to one of the preceding claims, characterized by that the or each clasp (2, 3) is arranged on the back plate (1) in a height-adjustable manner. [9] Device according to claim 8, characterized byin that for height adjustment the or each clasp (2, 3) is mounted on a carriage (15) which can be moved along the back plate (1) and which has a locking bolt (10) prestressed by a spring and which engages in one of several bores (16) arranged one above the other in the back plate (1). [10] Exoskeleton, characterized by that it comprises a device according to one of the preceding claims.

Images