Buckling tongue with a locking member

Abstract

To provide a buckle tongue that can be moved along a belt strap in a simple manner in a pass-through position, whereas, before a complete clamping of the belt strap is reached, the belt strap is not movable transversely to the insertion direction along the tongue body.SOLUTION: In a load position, a notch (9) minimizes the slipping of a belt strap transversely to the insertion direction. In an unloaded pass-through position of a locking element (7), the belt strap can be moved through a belt slit (4). In a load position brought about by a tensile force introduced into the belt strap, the movability of the belt strap is at least inhibited by the locking element (7). The locking element (7) is arranged in the pass-through position between the belt strap and the contact section having the notch, so that the belt strap does not contact the notch (9) in the pass-through position.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a buckle tongue having a tongue body, the tongue body extending in an insertion direction, extending in a direction transverse to the insertion direction, and forming a belt slit provided for guiding a belt strap therethrough, having a contact portion, the belt strap contacting the contact portion at least at a load position, the contact portion having a plurality of notches, the notches minimizing, preferably even preventing completely, the slippage of the belt strap in a direction transverse to the insertion direction at the load position, and the buckle tongue further comprising a locking member movably disposed on the tongue body, the belt strap being movable through the belt slit at a passage position where the locking member is not loaded, and being at least inhibited in its movability by the locking member at a load position shifted by a tensile force introduced into the belt strap.

Background Art

[0002] A buckle tongue having the aforementioned features is known from DE 10 2013 216 326 A1, in which the tongue body has recesses oriented in the longitudinal direction of the belt strap and the belt strap is already in contact with those recesses at the passage position. In particular, if the notches are formed as cross grooves or the surface having the notches also has a high coefficient of friction in the longitudinal direction of the belt strap, the tongue body may disadvantageously affect the easy movement of the buckle tongue along the belt strap at the passage position.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Accordingly, the object of the present invention is to eliminate the drawbacks described with respect to the prior art, and in particular, the belt strap is not movable in a direction transverse to the insertion direction along the tongue body, especially before complete clamping of the belt strap is achieved at the load position, while at the passage position it is easily movable along the belt strap, i.e., without significant resistance.

Means for Solving the Problem

[0004] The above object is solved by a buckle tongue having the features described in the independent claims. Advantageous developments of the buckle tongue are described in the dependent claims and the specification, and the individual features of these advantageous developments can be arbitrarily combined with each other in a technically meaningful way.

[0005] The above object is solved in particular by a buckle tongue having the features mentioned at the beginning, in which the locking member is arranged between the belt strap and the contact portion having the notch at the passage position, so that the belt strap does not contact the notch at the passage position.

[0006] That is, the basic idea of the present invention is that the belt strap is spaced from the notch by the locking member at the passage position of the locking member, while when the locking member is deflected from the passage position towards the load position, the belt strap contacts the notch, especially is drawn into the notch, at least immediately before reaching the maximum load position. The interaction between the belt strap with a relatively high tensile force applied and the notch prevents the belt strap from slipping in a direction transverse to the insertion direction along the tongue body. Such slipping of the belt strap at the belt slit in a direction transverse to the insertion direction is also referred to as "bunching". That is, a plurality of (at least two), preferably at least three, or rather at least four, notches arranged side by side with each other are provided at the contact portion, and the belt strap is drawn into those notches at the load position.

[0007] The tongue body is composed of, for example, a metal tongue plate and a plastic cap that partially surrounds the tongue plate, particularly in the area of the belt slit. In a preferred embodiment, the cap has a notch.

[0008] The locking member can be supported, for example, linearly movably (slidably) in / on the tongue body. However, preferably, the locking member is pivotally supported in / on the tongue body. In this case, the locking member is pivoted from the passing position to the loading position by a belt strap.

[0009] In the worn state, the belt strap is deflected into a loop shape by the buckle tongue, so the belt strap is divided into a shoulder belt portion and a pelvic belt portion. When a load is applied to the loop-shaped deflected portion of the belt strap by the tensile force from the shoulder belt portion and / or the pelvic belt portion, it acts on the locking member and shifts the locking member from the passing position to the loading position.

[0010] The locking member particularly has a clamping portion and an operating portion. The belt strap, by acting on the operating portion, shifts the locking member from the passing position to the loading position, and the belt strap is clamped between the tongue body and the clamping portion of the locking member at the loading position. The clamping portion and the operating portion are particularly formed as a one-piece and common component. The clamping portion is separated from the pressing portion formed by the surface portion of the tongue body at the passing position so that the belt strap guided through between the clamping portion and the pressing portion can move freely at this passing position. When the locking member is deflected by the action of the belt strap on the operating portion, the clamping portion moves towards the pressing portion of the tongue body and finally presses the belt strap disposed therebetween against the pressing portion.

[0011] In order to avoid the belt strap from already contacting the notch of the contact portion at the passing position, in one embodiment, the operating portion of the locking member is disposed between the belt strap and the contact portion. In particular, when the locking member is pivotally supported in / on the tongue body, an opening is formed between the clamp portion and the operating portion of the locking member. In that case, in the load position, the tongue body is disposed in the opening between the clamp portion and the operating portion, whereby in the load position, the contact portion having the notch assumes a position where it engages with the locking member.

[0012] The notches are arranged in particular to limit the belt slit. That is, the notches that limit the belt slit are arranged in such a part (for example, an edge or a surface) of the tongue body. That is, the depth of the recess formed by the notch extends in the insertion direction, while the notch does not substantially extend in the longitudinal direction of the belt strap, that is, in the direction crossing the belt slit. That is, the regions of the contact portions between the notches together also form a plurality of tooth-shaped protrusions. In this way, the notches are arranged in particular at positions where a particularly large tensile force pulls the belt strap into the notches. Therefore, particularly effectively, the slippage of the belt strap in the direction crossing the insertion direction is prevented. In this specific arrangement of the notches, an independent invention not including the features of the above-described solution means is also conceivable. That is, in particular, a plurality of mutually arranged notches in the portion of the tongue body that engages with the locking member can be claimed as the scope of the right. In this case, it is not necessary to claim that the notches directly limit the belt slit and that the belt strap is separated by the locking member at the passing position.

[0013] Hereinafter, the present invention and the technical surrounding environment will be exemplarily described based on each figure.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying out the Invention

[0015] Fig. 1 shows the tongue body 3 of the buckle tongue 1 illustrated in Figs. 2 to 4. The tongue body 3 includes a metallic tongue plate 5 and a plastic cap 6 that partially surrounds the tongue plate 5. The tongue body 3 extends in the insertion direction 2 and has a belt slit 4. The belt slit 4 extends in a direction transverse to the insertion direction 2 and is provided for receiving the belt strap 12 illustrated in Fig. 4.

[0016] The cap 6 forms a contact portion 8, and this contact portion 8 limits the belt slit 4 and has a plurality of notches 9.

[0017] The buckle tongue 1 further includes a locking member 7, which is shown in the passing position in Fig. 2 and in the loading position in Fig. 3. The locking member 7 formed in one piece has a clamp portion 10 and an operating portion 11. An opening is formed between the clamp portion 10 and the operating portion 11.

[0018] As can be seen from Fig. 2, in the passing position, the operating portion 11 is arranged such that the belt strap 12 (not shown in Fig. 2) does not contact the notch 9 of the contact portion 8. However, the belt slit 12 can be guided through the belt slit 4 so as to be freely movable in the passing position.

[0019] When tensile force is applied to the belt strap, the belt strap 12 acts on the operating portion 11 of the locking member 7, whereby the locking member 7 is pivoted to the load position. At the load position, the belt strap 12 is pressed against the pressing portion of the tongue body 3 by the clamping portion 10 of the locking member 7, whereby the mobility of the belt strap 12 is reduced or completely eliminated. At the same time, the notch 9 is exposed by the pivoting of the operating portion 11, and the belt strap 12 comes into contact with the contact portion 8 and is drawn into the notch 9 as suggested by the arrow in FIG. 4.

[0020] By the pivoting of the locking member 7, the contact portion 8 provided with the notch 9 is engaged with the locking member 11 so to speak, whereby the contact portion 8 provided with the notch 9 comes into contact with the belt strap 12. Since the notch 9 restricts the belt slit 4 at least at the load position, the portion of the belt strap 12 deflected in a loop shape acts on the notch 9, whereby the belt strap 12 is drawn into the notch 9 with a large force. The notch 9 extends in the depth direction thereof, i.e., in the insertion direction 2, and does not substantially extend in the direction in which the belt strap passes, so the contact portion 8 between the notches 9 forms a tooth-shaped protrusion. Thereby, the slippage of the belt strap 12 in the direction crossing the insertion direction 2 is effectively avoided.

Description of the reference numerals

[0021]

Table 1

Claims

1. - A tongue body (3), - A lock member (7) movably disposed on the tongue body (3), a buckle tongue (1) having, The tongue body (3) is, ・ Extending in the insertion direction (2), ・ Extending in a direction transverse to the insertion direction (2) and forming a belt slit (4) provided for guiding the belt strap therethrough, ・ Having a contact portion (8), The belt strap (12) contacts the contact portion (8) at least at the load position, the contact portion (8) has a plurality of notches (9), the notches (9) are, at the load position, the belt strap (12) in the direction transverse to the insertion direction (2) Minimize slippage, The belt strap (12) is movable through the belt slit (4) at the passing position where the lock member (7) is not loaded, and at the load position shifted by the tensile force introduced into the belt strap (12), the lock member (7) In the buckle tongue (1), the mobility is at least suppressed by, The lock member (7) is disposed between the belt strap (12) and the contact portion (8) having the notch (9) at the passing position, so that the belt strap (12) does not contact the notch (9) at the passing position, The plurality of notches (9) are a plurality of tooth-shaped protrusions, arranged side by side along a direction perpendicular to the insertion direction (2), and provided on the short side of the tip side of a trapezoidal member that tapers toward the insertion direction (2). Buckle tongue (1).

2. The lock member (7) has a clamp portion (10) and an operating portion (11), the belt strap (12) acts on the operating portion (11) to move the lock member (7) from the passing position to the load position. The buckle tongue (1) according to claim 1, wherein the belt strap (12) is locked between the tongue body (3) and the clamp portion (10) at the load position.

3. The buckle tongue (1) according to claim 2, wherein at the passing position, the operating portion (11) is disposed between the belt strap (12) and the contact portion (8).

4. A part of the tongue body (3) forming the contact part (8) is engaged with the locking member (7) between the clamp part (10) and the operating part (11) at the load position. The buckle tongue (1) according to claim 3 is characterized in that.

5. The contact part (8) has at least three notches (9) arranged side by side with each other. The belt strap (12) is drawn into the notch (9) at the load position. The buckle tongue (1) according to any one of claims 1 to 4 is characterized in that.

6. The tongue body (3) has a metal tongue plate (5) and a plastic cap (6) that partially surrounds the tongue plate (5). The cap (6) has the notch (9). The buckle tongue (1) according to any one of claims 1 to 5 is characterized in that.

7. The locking member (7) is rotatably or linearly movably arranged in the tongue body (3). The buckle tongue (1) according to any one of claims 1 to 6 is characterized in that.

8. The belt strap (12) is deflected by the buckle tongue (1) in a loop shape when worn. The buckle tongue (1) according to any one of claims 1 to 7 is characterized in that.

Images