阅读说明：本技术 安全带装置 (Seat belt device ) 是由 汉斯-朱利安·祖甘 于 2018-06-14 设计创作，主要内容包括：本发明涉及一种安全带装置(1),其特别是在施工活动中用于在人员坠落时将人员挂住,包括至少一条肩带(2),该肩带具有胸部部分(2a)、肩部部分(2b)和背部部分(2c),背部部分包括用于可释放地附接安全绳(7)的锁定元件(6),其中锁定元件可在工作位置与挂接位置之间转换,在工作位置锁定元件(6)设置在肩带(2)的背部部分(2c)那一侧,在挂接位置锁定元件(6)设置在肩带(2)的胸部部分(2a)那一侧。(The invention relates to an safety belt device (1), in particular for use in construction activities for hitching a person when falling, comprising at least shoulder straps (2) having a chest portion (2a), a shoulder portion (2b) and a back portion (2c), the back portion comprising a locking element (6) for releasably attaching a safety line (7), wherein the locking element is shiftable between a working position, in which the locking element (6) is arranged on the side of the back portion (2c) of the shoulder straps (2), and a hitching position, in which the locking element (6) is arranged on the side of of the chest portion (2a) of the shoulder straps (2).)

Safety belt device (1) of the kind , for use in particular in building construction activities for hanging a person when the person falls, the safety belt device comprising:

-at least shoulder straps (2) comprising a chest portion (2a), a shoulder portion (2b) and a back portion (2 c);

-a locking element (6) for releasably attaching a safety line (7),

characterized in that said locking element (6) is transitionable between a work position, in which said locking element (6) is arranged on the side of the back portion (2c) of said shoulder strap (2), and a hooking position, in which said locking element (6) is arranged on the side of the chest portion (2a) of said shoulder strap (2).

2. The safety belt device (1) according to claim 1, characterized in that a hooking element (22) is provided on the chest portion (2a) side of the shoulder belt (2), and a connecting element (11), preferably a connecting cable (11a), is provided for connecting the locking element (6) to the hooking element (22).

3. The safety belt device (1) as claimed in claim 2, characterized in that in the operating position the connecting element (11) is guided along the shoulder belt (2) at least in sections, preferably over substantially the entire longitudinal extent of the connecting element (11).

4. The safety belt device (1) according to claim 3, characterized in that in the operating position the connecting element (11) is received between the shoulder belt (2) and a covering element (12), in particular a covering woven fabric.

5. The safety belt device (1) according to claim 4, characterized in that the covering part (12) is connected to the shoulder belt (2) by a joint, in particular by a seam (13).

6. The seatbelt device (1) according to of any one of claims 1 to 5, characterized in that a retaining element (10) for connecting the locking element (6) to the shoulder strap (2) and a releasing device (14) for releasing the locking element (6) from the retaining element (10) are provided.

7. The safety belt device (1) according to claim 6, characterized in that the release device (14) comprises a latch (15) and a latch receptacle (16), wherein in the operating position the latch (15) is connected to the latch receptacle (16) and the latch (15) can be transferred to a release position released from the latch receptacle (16) by applying a predetermined longitudinal force to the locking element (6).

8. The safety belt device (1) according to claim 7, characterized in that the latch (15) is mounted, in particular pivotally, on the retaining element (10), wherein the locking element (6) comprises the latch receptacle (16).

9. Safety belt device (1) according to , characterized in that the release device (14) comprises a spring element (21), the locking element (6) being releasable from the holding element (10) against the spring force of the spring element (21).

10. The seatbelt device (1) according to of any one of claims 6 to 9, characterized in that the release device (14) comprises a damping element (17) for braking a release movement of the locking element (6) relative to the retaining element (10).

Technical Field

The invention relates to an safety belt device, in particular for use in building construction activities for hooking persons when they fall, comprising:

-at least shoulder straps comprising a chest portion, a shoulder portion and a back portion, and

-a locking element for releasably attaching the safety line.

Background

It is known, for example, from DE20022993U1 to a safety harness with a locking device and a retaining device, which safety harness has a waist belt strap and a shoulder belt strap, which shoulder belt strap has two parts which are arranged crosswise on the back of the wearer, which intersection is provided with a safety rope loop for securing a safety rope.

In the case of construction activities, standard safety belts are used, in which safety lines (fall protection lines) are fastened to safety line loops in the back region of the wearer. Thus, the wearer of the harness is not hindered from performing his work activity. However, a serious disadvantage with this embodiment is that in the event of a fall, the wearer must disengage the safety line as quickly as possible. Hanging on the back can create life-threatening loads (stresses) in a short period of time. In some cases, death may occur only after a 20 minute loading time. The reason for this is that the suspension on the back exerts high pressure on the thorax, leg arteries and leg veins due to its own weight, thereby greatly impairing respiration and circulation.

, harnesses for other applications, particularly climbing harnesses, are known in which a securing cord is attached to the front or chest side of the wearer, thereby increasing the non-lethal time a person can "stay on the cord" after falling to at least 60 minutes.

Disclosure of Invention

It is therefore an object of the present invention to overcome or at least reduce the disadvantages of the prior art, and it is an object of the present invention to create a harness arrangement for construction activities that improves the stress (load) on the wearer in case of a fall.

The above object is achieved by a safety belt arrangement according to claim 1. Preferred embodiments are contained in the dependent claims.

According to the invention, the locking element can be switched between an operative position, in which the locking element is arranged on the back portion side of the shoulder strap, and a hooking position, in which the locking element is arranged on the chest portion side of the shoulder strap.

In order to be able to carry out the working movement freely and unhindered, the locking element is arranged on the rear side of the wearer of the seat belt device in the working position. Thus, for example, when carrying out construction work activities on metal frame structures, the end portion of the safety line connected with the locking element is located in the back area of the wearer. In other words, the attachment of the safety line to the back is provided in the working position (i.e. the support line is provided on the back part of the shoulder harness). Thus, the work activities can be carried out freely and unhindered, wherein at the same time the desired fall protection is achieved. In the event of a fall, an independent displacement of the locking element from the operating position into the hooking position is triggered. During the transition from the working position to the hanging position, the locking element and thus also the safety cord are guided from the rear side of the wearer to the chest side or front side of the wearer. In this position, the safety line is disposed on the front or chest side of the wearer. The end region of the locking element or of the safety line connected thereto therefore follows a path of movement from the back of the wearer, preferably over the shoulders thereof, to the chest region. Due to the attachment in the chest region, the thorax of the wearer is advantageously subjected to only minimal loads (or stresses) in the hitching position. Since the safety line switches from a back setting to a chest setting during or a few seconds after a fall, the wearer can stay on the safety line for a longer time before the occurrence of a health-hazardous load due to compression forces. The freedom of movement in the performance of work activities can thus be advantageously combined with greater safety in the event of a fall.

For the purposes of this disclosure, the position and orientation specifications relate to the state of the seat belt when used as intended. For example, "front", etc. relate to the chest area of the wearer, while "rear", etc. relate to the back area of the wearer.

In order to enable the locking element to be displaced from the rear side to the front side of the person to be protected, a hooking element is preferably provided on the chest portion side of the shoulder strap, and a connecting element, preferably a connecting cable, is preferably provided for connecting the locking element to the hooking element, the hooking element being fixed on the front side, i.e. on the chest portion side of the shoulder strap.

For this purpose it is preferred that ends of the connecting element are connected to the locking element and the other ends of the connecting element are connected to the hooking element in the operative position the connecting element is in a state not carrying the weight of the wearer of the harness, wherein the weight of the wearer is taken up by the locking element on the rear side.

In order to provide the wearer with maximum freedom of movement, to achieve high safety standards and to make the shoulder straps easier to wear, it is advantageous if the connecting element is guided along the shoulder straps at least in sections, preferably substantially over the entire longitudinal extent of the connecting element, in the operating position.

For the reasons mentioned above, it is furthermore advantageous if the connecting element is received between the shoulder strap and a covering element, in particular a covering woven fabric, in the working position.

According to a preferred embodiment, the covering element is connected to the shoulder strap by a joint, in particular by a seam. Therefore, in the event of a fall, the displacement of the suspended portion from the rear side to the front side can be delayed. Thus, in the event of a fall, the weight of the wearer is advantageously transferred relatively gently from the suspension of the back to the suspension of the chest. At the end of the fall, the wearer is suspended by the safety line in a stable position with virtually no impairment of breathing or blood circulation.

According to a further preferred embodiment, a retaining element for connecting the locking element to the shoulder strap and a release device for releasing the locking element from the retaining element are provided. The holding element is fixedly connected to the shoulder straps, in particular to the back part thereof, at the rear side of the wearer. In the event of a fall, the release device releases the locking element from the retaining element by means of the catch force. Thus, the weight of the wearer is transferred to the hooking element of the front side.

In a preferred variant, the release device comprises a latch and a latch receptacle, wherein in the operating position the latch is connected to the latch receptacle and the latch can be transferred to a release position released from the latch receptacle by applying a predetermined longitudinal force to the locking element. Thus, under normal conditions, the safety line is arranged at the locking element at the rear side of the wearer, so as not to hinder the wearer from performing his work activities. The release device is activated only in the event of a fall, the locking element thereby being released from the retaining element so that the locking element can be displaced to the front side.

From a structural point of view it is advantageous if the latch is mounted, in particular pivotally, on the holding element, wherein the locking element comprises a latch receptacle. However, the latch may also be provided on the locking element and the latch receptacle may be provided on the retaining element.

In order to define a specific release force, it is advantageous if the release device comprises a spring element, the locking element being releasable from the holding element against the spring force of the spring element.

The release device particularly preferably comprises a damping element for braking a release movement of the locking element relative to the retaining element. The damping element causes a time delay during the release.

Drawings

In the following the invention will be further explained on the basis of a preferred exemplary embodiment, to which, however, the invention is not limited.

Fig. 1 shows the rear side of a wearer of a safety belt device according to the invention with shoulder straps and leg loops in a working position, in which the safety line is suspended from a locking element on the back of the wearer to allow construction activities to be carried out unhindered;

fig. 2 shows the front side of a wearer of the seat belt device in an operating position, in which the hooking element in the chest region of the wearer is connected to the locking element by means of a connecting cable;

fig. 3a shows a detailed view of the suspension of the safety line at the back in the working position, wherein the locking element is locked to the retaining element at the back portion of the shoulder strap; and

fig. 3b shows a detailed view of the locking element in the safety belt during release in the event of a fall.

Detailed Description

Fig. 1 shows the rear side of a worker who is performing construction activities and is protected by a harness arrangement 1 for hanging the worker in case of a fall, fig. 2 shows the front side, the harness arrangement 1 comprises two shoulder straps 2, each having a chest portion 2a, a shoulder portion 2b and a back portion 2c, in this exemplary embodiment the chest portion 2a, the shoulder portion 2b and the back portion 2c are formed as bodies, the back portion 2c and the chest portion 2a of the shoulder straps 2 are each arranged crosswise, for improved stability the back portion 2c is connected by a transverse portion 3, the harness arrangement 1 further comprises two leg straps 4 formed as loops or nooses for the left and right legs, the leg straps 4 are fixedly connected to the shoulder straps 2 at a connection point 5, alternatively the leg straps 4 and the shoulder straps 2 may also be formed as bodies, the harness arrangement 1 comprises locking elements 6 for releasably attaching a safety rope 7 (fall protection rope 7), the locking elements 6 are releasably connected to the ends of the safety rope , wherein further end fastening elements are fastened to a hand strap bar 8, the hand bar being displaceable along the hand bar in the longitudinal extension of the hand strap arrangement.

In this respect the seat-belt arrangement 1 is in principle known from the prior art, so that no further steps are necessary in this respect, the known elements of the seat-belt arrangement 1 being only schematically shown in the figures.

It is essential for the embodiment of the proposed safety belt arrangement 1 that the locking element 6 for the safety line 7 can be switched between an operating position, in which the locking element 6 is arranged on the side of the back portion 2c of the shoulder belt 2 (fig. 1), and a hooking position, in which the locking element 6 is arranged on the side of the chest portion 2a of the shoulder belt 2.

To this end, the shoulder strap 2 comprises a hooking element 22 on the chest portion 2a side the hooking element 22 is formed, for example, as a loop of a safety line according to the standard DIN EN 361: 2002 the hooking element 22 is connected to the covering element 6 by means of a connecting element 11. in this exemplary embodiment, the connecting element 11 is a connecting line 11a which is guided along the shoulder strap 2 in the operating position, the connecting line 11a is received between the shoulder strap 2 and the covering element 12, which in this example is a covering woven fabric, the covering element 12 is connected to the shoulder strap 2 by means of a joint, in particular by means of a seam 13, in the case of a transfer of the safety strap device 1 from the operating position into the hooking position as a result of a fall, the locking element 6 is guided along the shoulder strap 2 from its back portion 2c into its chest portion 2a during which transfer the seam 13 tears continuously from the back portion 2c, thereby causing the connecting line 11a to be released and to move with the locking element 6 in the direction of the chest portion 2 a. in the hooking position, the connecting line 11a is completely released and is no longer received between the covering element 2 and the covering element 12, the chest portion is thus suspended at the chest portion 7 a position by means of the shoulder strap 7 a carrying the connecting line 7 a and the chest portion of the shoulder strap 2, thereby carrying the chest portion of the shoulder strap 2.

As can be seen from fig. 3a and 3b, the retaining element 10 connects the locking element 6 to the shoulder strap 2. The retaining element 10 is fixedly connected to the back portion 2c of the shoulder strap 2 through a retaining opening 10 a.

In order to release the locking element 6 from the retaining element 10, a release device 14 is provided, the release device 14 comprising at least rotationally mounted latches 15, in the embodiment shown two corresponding latches 15 are provided, the locking element 6 comprising matching latch receptacles 16 (in the embodiment shown two latch receptacles), wherein each latch 15 is received in an associated latch receptacle 16 in the working position (see fig. 3a), by applying a predetermined longitudinal force to the locking element 6 (see arrow 20 in fig. 3 b), the latch 15 can be transferred in case of a fall to a release position released from the latch receptacle 16. in the embodiment shown, the latch 15 is pivotally mounted on the retaining element 10. the latch 15 is pivoted due to the longitudinal force in the direction 20 on the locking element 6. the release device 14 further comprises a spring element 21, the locking element 6 can be released from the retaining element 10 against its spring force by the spring force, which defines the force that has to be applied in order to release the locking element 6 from the retaining element 10. in the embodiment shown, the retaining element 10 comprises a second component 19a, a spring 19b is arranged to be displaced from the retaining element 19 by the impact part 19a, 19b, by applying a tension in the second component 19b, a second impact component 19b, and a spring 19b, whereby the impact component 19b is arranged to be displaced between the retaining element 19b, a tension component 19b, a, and a, a tension component 19b, a, and a being arranged to be displaced in the second impact.

In the embodiment shown, a damping element 17 is additionally provided for braking the release process. In the embodiment shown, a hydraulic spring damper 18 is provided for forming the spring element 21 and the damping element 17.