ES2820758T3 - Climbing grip - Google Patents

Abstract

Climbing grip (1) comprising - a grip body (4) with an opening (7) and - a clamping body (8) that is translationally and rotationally fixed in the opening (7), wherein - the grip of Climbing (1) can be fixed to a climbing wall (2) by means of the clamping body (8) and a fixing means (3) cooperating with the clamping body (8), - the clamping body (8 ) is positioned in the opening (7) in such a way that the clamping body (8) protrudes at the rear (6) of the grip body (4), - the clamping body (8) has subsequently been inserted into the climbing grip, and - the positioning of the clamping body (8) takes place by gluing it into the opening (7).

Description

DESCRIPTION

Climbing grip

Field of the invention

The invention relates to a climbing grip for fixing to natural and / or artificial climbing walls.

Background of the invention and state of the art

Climbing grips that can be attached to natural and / or artificial climbing walls are known in the state of the art. Climbing grips are available in different shapes and sizes and are suitable for both grabbing and climbing. Different substances are used as materials such as synthetic resins, polyester resins, mineral sand mixtures, polymer concrete, natural stones, wood, elastomers or other suitable materials for the production of climbing grips.

A widespread problem is damage to climbing grips during installation or in the event of impact loads, which can cause, depending on the material used, parts of the climbing grip or, in the worst case, the entire grip of climbing loosen and fall.

To fix the climbing grip to the climbing wall, it is known to provide a through hole in the climbing grip and to fix it directly to the climbing wall with a screw. In doing so, the climbing grip is subjected to very high loads directly under the screw head. As a remedy and to distribute the increasing forces over a larger area, washers are sometimes integrated. With these washers, the forces acting directly under the screw head can be more evenly distributed. However, this solution has been shown to reduce the problem, but not completely eliminate it. For practical reasons, these washers are relatively thin and have an outside diameter that is only slightly larger than the screw head itself. This means that considerable compressive stress is still applied to the contact surface of the grip screw or washer. Due to the small cross section, the first damage to the grip can occur during assembly.

In some climbing grips, countersunk head screws are used to secure the climbing grip to the climbing wall. The tensile stress on the climbing grip contact surface caused by the countersunk head even increases the risk of damage during mounting or breakage during climbing.

For this reason, climbing grip manufacturers provide guide values for tightening the screws during mounting to avoid damage to the grip, i.e. that a certain torque must not be exceeded when tightening the screws. However, depending on the roughness of the surfaces, these guide values may be exceeded when tightening the screws, so as to ensure a twist-proof installation of the climbing grip. This can also lead to initial damage.

Climbing grips for artificial climbing facilities are usually mounted and disassembled several times during their service life, for example to carry out cleaning or to install new routes in the climbing facility. There is a risk that, especially during subsequent mounting of the grips, the fixing screws will be overtightened and the grip damaged, which may lead to breakage and fall of parts of the grip during assembly or use and, consequently, to injuries. Especially when transforming climbing routes and using different grip sizes / types from different manufacturers, the assignment of the corresponding tightening instructions cannot be carried out in practice or can only be carried out with great effort. For this reason, the grips are normally adjusted to the climbing wall based on experience and direct testing for a secure fit. Again, there is a risk that the screws used to secure the grips will be over-tightened during installation, which could damage the grip. This increases the risk of injury and also leads to higher operating costs. On uneven mounting surfaces, the climbing grip can also be damaged, because very high pressure forces can act on the climbing grip at certain points.

German patents no. DE102006015938A1, DE102006049424A1, DE102007027806A1 describe solutions to prevent parts of the grip from falling. In those cases an elastic layer is placed under the climbing grip to keep these parts of the grip in place.

German patent no. DE102010047785A1 describes a similar solution, where the climbing grip itself is glued to a metal carrier plate and the carrier plate itself is screwed to the wall. This solution can allow the grip to mount with virtually no tension. However, due to the low coefficient of friction, it cannot always be guaranteed that the climbing grip is arranged on the climbing wall in such a way that it cannot be twisted.

German patent no. DE102011008098 A1 reveals a climbing grip made of an elastomer. Although this may reduce the risk of the grip breaking, such climbing grips have not been shown to be suitable for practical use.

United States Patent No. US 6074327A1 describes a climbing grip with a reinforcing sleeve. The sleeve partially isolates the climbing grip from the clamping forces resulting from the attachment of the climbing grip to the climbing wall. Parts of the reinforcement sleeve (tips) protrude from the back of the grip to prevent rotation of the climbing grip relative to the climbing wall.

Object of the invention

Accordingly, the invention aims to provide a climbing grip that avoids as far as possible the drawbacks known in the state of the art and that can be installed much more safely and easily throughout its useful life and that also can be manufactured at low cost.

Solution according to the invention

According to the invention, this objective is achieved with a climbing grip according to the independent claim. The dependent claims contain advantageous embodiments and improvements of the invention. Consequently, a climbing grip is provided which has

• a body of the grip (4) with an opening (7) and

• a clamping body (8) that is translationally and rotationally fixed in the opening (7),

where

• the climbing grip (1) can be fixed to a climbing wall (2) by means of the clamping body (8) and a clamping means (3) cooperating with the clamping body (8),

• the clamping body (8) is positioned in the opening (7) in such a way that the clamping body (8) protrudes at the rear (6) of the grip body (4),

• the clamping body (8) has been subsequently inserted into the climbing grip, and

• the positioning of the clamping body (8) takes place by gluing it into the opening (7).

As a result, the climbing grip is not directly loaded by the fixing means, so that the climbing grip can be mounted largely without tension. The force of the fixing means acts only on the clamping body, which is rigid and non-deformable and is made, for example, of steel.

In this way, a breakage of the grip, caused by the forces coming from the fixing means, can be largely avoided.

It is advantageous if the clamping body in the opening further strengthens the grip body.

The clamp body is positioned in the opening in such a way that the clamp body protrudes at the rear of the grip body and forms a projection. This means that a kind of rung is formed between the protruding clamp body and the grip body. This allows the grip body to be mounted completely free of tension, as no mounting forces are introduced into the grip body during mounting. In one embodiment of the invention, the aperture may have a round cross section. The opening can go completely through the body of the grip, that is, from the front to the rear facing the climbing wall. If the climbing grip is mounted from behind, the opening can also only partially pass through the body of the grip from behind, so that the opening is essentially formed by a kind of blind hole.

It is advantageous if the holding body has a cylindrical shape.

The clamping body may have

• a through hole, or

• a thread, or

• a pin

with thread.

It is also advantageous if the outer surface of the clamping body does not have a smooth surface, for example it is rough.

The clamping body may have a bevel.

Under the contact surface of the clamping body with the climbing wall and / or at the rear of the climbing grip (the side facing the climbing wall) a sheet can be placed to increase friction. A foil placed on the back of the climbing grip is only one possible alternative, which is not covered by the attached claims, as the back of the climbing grip does not come into contact with the climbing wall.

According to the invention, the clamping body is subsequently inserted into the climbing grip.

In an advantageous embodiment of the invention, the climbing grip can be manufactured in a 3D printing process. In this case, it can be advantageous that both the clamping body and the grip body are produced in a single printing process, where it may be more advantageous if a different material than the grip body is used for the clamping body.

Brief description of the figures

The details and characteristics of the invention, as well as its specific embodiments, result from the following description in connection with the drawing. It shows:

In Figure 1, a climbing grip;

In Figure 2, a climbing wall;

In Figure 3, three climbing grips where the mode at 3 (a) is in accordance with the invention.

In Figure 4, a climbing grip, in which additional measures are provided to prevent twisting;

In Figure 5, several variants of the opening / through hole in the grip body;

In Figure 6, several variants of the clamping body and the fixing means;

In Figure 7, two mounting variants of a climbing grip, wherein mounting is also possible with a climbing grip according to the invention; Y

In Figure 8, an alternative design of a holding body for a climbing grip according to the invention.

Detailed description of the invention

Figure 1 shows a climbing grip 1 to be attached to natural or artificial climbing walls 2 by means of a fixing means 3. The climbing grip 1 can be used as a grip or step. This climbing grip is not covered by the invention in terms of the claims.

The climbing grip 1 essentially consists of the clamping body 4, with a surface 5 and a rear part 6. The rear part 6 faces the climbing wall 2.

The body of the grip 4 has an opening 7 or a through hole. A clamping body 8 is inserted into this opening 7. The clamping body 8 is inserted into the through hole 7 in such a way that it is fixed both translationally and rotationally. The clamping body 8 has an opening 9 through which the clamping means 3 can be inserted and creates the connection with the climbing wall 2. The opening 9 of the clamping body 8 is smaller than the contact surface of the fixing means 3.

Figure 2 shows a climbing wall with three different fixing means 12, 13, 14 interacting with fixing means 3.

The climbing wall 2 itself is made of a wall material 10, in which a hole 11 is provided and on the back of which a fixing nut 12 is placed. Instead of the fixing nut, other fasteners such as screw nuts 13 or conventional nuts 14.

The positioning of the clamping body 7 is performed as shown in Figure 3 by gluing it into the through hole 7. This has the advantage that the adhesive or resin reinforces the grip body 4 in the vicinity of the opening 7, thus increasing its resistance.

According to illustrations a), b) and c) of Figure 3, the grip body 4 is held in place by an adhesive bond on the surface 16 of the grip body 8. The arrangement and fixation according to the invention of the clamping body 8 in the through hole 7 has the following characteristics and advantages:

• According to Figure 3 (a) the clamping body 8 protrudes slightly at the rear 6 of the climbing grip 1 or the clamping body 4 (projection 15a). Therefore, the mounting forces are only transmitted through the contact surface 15 of the clamping body 8. The grip body 4 is not subjected to any load during mounting, since no forces are introduced into the body of the clamp. grip 4, whereby the grip body 4 can be installed almost completely free of tension. This type of arrangement of the clamping body 8 on the grip body 4 is particularly advantageous for grip bodies made of natural stone, mineral sand mixtures, concrete or polymeric concrete, since the forces introduced into the grip body during the The mounting can cause unwanted damage to the grip body when using grip bodies made of these materials. Especially in the area of the surface 16 of the clamping body 8, these forces can cause damage to the grip body 4, so that a sufficiently stable connection between the grip body 4 and the clamping body 8 can no longer be ensured. , which can cause the grip body 4 to rotate / slip relative to the grip body 8.

• According to Figure 3 (b), the clamping body 8 is arranged flush with the rear 6 of the climbing grip 1 in the through hole 7. This arrangement is not covered by the invention in the sense of the claims . In this arrangement, the mounting forces are transmitted jointly through the contact surface 15 of the clamping body 8 and through the rear 6. Due to the adhesive, part of the mounting forces are transmitted by the shear stress in the opening 7 through the surface 16 of the clamping body 8 to the grip body 4 and thus the mounting forces are also transmitted from the grip body 4 through the rear 6. The grip body 4 is subjected to slight tension during assembly.

• According to Figure 3 (c), the clamping body 8 fits slightly into the opening 9. This arrangement is not covered by the invention in the sense of the claims. In this arrangement, the mounting forces are transmitted through the rear 6. Due to the adhesive, the mounting forces are transmitted by the shear stress in the opening 7 through the surface 16 of the clamping body 8 to the body. of the grip 4 and thus the mounting forces are also transmitted from the grip body 4 through the rear 6. Here the grip body 4 is subjected to the load during mounting. Since the force transmission through the adhesive connection transforms the pressure forces, which are applied under the screw head and which are introduced into the adhesive layer by the clamping body 8, are transformed into shear forces and the Shear forces in the grip body 4 are distributed over the entire surface 6 of the climbing grip 1, this arrangement is also advantageous since no stress peaks occur in the grip body 4.

Of course, the dimensioning of the sections and lengths of the individual elements, as well as the adhesive, must be adequate to the loads.

In the following, the arrangement according to Figure 3 b) will always be considered, although the arrangement according to Figure 3 a) is the most advantageous, since with the arrangement according to Figure 3 a) no forces are introduced on the grip body 4 when mounting the climbing grip.

The explanations of the arrangements according to Figures 3 b) and 3 c) are only to be understood as examples which are not covered by the invention within the meaning of the claims.

To improve the torsional resistance properties, a sheet 17 can be placed under the clamping body 8 or at the back 6 of the clamping body 4, as shown in Figure 4. In this way the coefficient can be increased. friction. The sheet 17 has a passage 18 for fixing it to the climbing wall 2. The sheet 17 can be adapted to the geometry of the gripper with simple means. In the variant according to Figure 3 a), the sheet 17 can also be fixed only under the clamping body 8. In the variant according to Figure 3 c), the sheet 17 can also be fixed only in the part rear 6 of the grip body 4.

The most cost-effective variant here is that the opening 7 of the grip body 4, the clamping body 8 and its opening 9 are round, that is, they have a circular cross section. For better adhesion of the adhesive, the surface 16 of the clamping body 8 is rough. This can be achieved, for example, by sandblasting. For circular cross sections, a knurled or hatched pattern can also be provided.

The arrangement described here, in particular the arrangement according to Figure 3 a), has the advantage, in addition to the tension-free installation, that when the climbing grip 1 is loaded during climbing, a significant part of the force it is only transmitted through the geometric arrangement of the clamping body 8 in the opening 7, since in the advantageous embodiment the geometries correspond to the clamping body 8 and the opening 7 and therefore there is an adhesion fit of shape .

Figure 5 shows several variants V1 to V6 of the opening 7 in the body of the grip 4.

Variant V1: the opening 9 completely passes through the body of the grip 4 and has a largely constant cross section. In this case, the climbing grip 1 can be mounted on both sides of the climbing wall 2. This opening 7 is particularly easy to make if it has a round cross section. However, other cross sections are also possible.

Variant V2: the opening 19 only partially passes through the body of the grip 4 at the back 6. In this case, the climbing grip 1 can only be mounted from the back of the climbing wall 2. This opening 19 is particularly easy to handle. do if you have a round cross section. However, other cross sections are also possible.

Variant V3: the openings 20 and 21 pass through the body of the grip 4 and have different cross sections, which can have the same or different shapes. Circular cross sections are particularly favorable. In this case, the climbing grip 1 can be mounted on both sides of the climbing wall 2. The cross section of the opening 20 is larger than that of the opening 21. The opening 20 is oriented towards the rear 6.

Variant V4: the openings 22 and 23 pass through the body of the grip 4 and have different cross sections, which can have the same or different shapes. Circular shapes are particularly favorable. In this case, the Climbing grip 1 can be mounted on both sides of the climbing wall 2. The cross section of the opening 23 is larger than that of the opening 22. The opening 22 is oriented towards the rear 6.

Variant V5: the opening 24 passes through the body of the grip 4 and expands linearly or curved from the rear 6 towards the front surface 5. Circular shapes are particularly favorable. In this case, the climbing grip 1 can be mounted on both sides of the climbing wall 2.

Variant V6: the opening 25 passes through the body of the grip 4 and tapers linearly or also curved from the rear 6 towards the front surface 5. Circular shapes are particularly favorable. In this case, the climbing grip 1 can be mounted on both sides of the climbing wall 2.

Single or multiple combinations of variants V1 to V6 are also possible.

Figure 6 shows several variants of the clamping body and the fixing means according to the present invention.

The surface 16 of the clamping body 8 can be completely or partially identical to the geometry of the opening 7, or it can be different. This applies to all V1 to V6 variants of opening 7 in grip body 4.

The opening 7 in the body of the grip 4 can be circular. Any other desired geometric or random shape is also possible.

The shape of the clamping body 8 can correspond completely or partially to the shape of the opening 7 in the body of the grip 4, or it can also be different. This applies to all V1 to V6 variants of the opening 7 in the grip body 4. However, circular shapes are particularly favorable.

A clamping body 8 with a hole 9 is the simplest variant for fixing by means of the fixing means 3 starting from the front surface 5.

A clamping body 26 with a thread 27 is also a simple variant for fixing with a fixing means 3 starting from the back of the climbing wall 2.

A clamping body 28 with a hole and a chamfer 29 is advantageous when countersunk head screws are used so that the countersunk head fits well into the hole.

In a particular embodiment of the invention, the clamping body 30 may have a pin 31 at the end of which a thread is placed. With this clamping body 30, the climbing grip can only be mounted from the back of the climbing wall 2, fixing a fixing means, for example a nut, to the thread.

The most common type of fastening means 3 are Allen screws or screws that are driven from inside the screw head. Shapes other than hexagonal are also possible.

Hex head screws 33 or screws driven from the outside of the head can also be used as a fixing means.

Alternatively, countersunk screws 34 can be used, where the contact surface on the clamping body is a cone. The drive can be internal, external, or through the side opposite the cone.

These 3 variants of fixing means 3 are inserted and tightened starting from the front surface 5 through the clamping body and the hole 11 and require a fixing nut 12 or a screw nut 13 to be assembled by a single person. It is also possible to use a conventional nut 14 instead of the lock nut 12 or the threaded nut 13, in which case the assembly must be done by two people.

It is also possible to insert the fixing means 3, 33, 34 from the back of the climbing wall 2 through the hole 11 and the opening of the clamping body 7. The fixing is made with a conventional nut 14.

It is also possible to use fixing means 3 with any head shape, which are screwed directly into the wall material.

Figure 7 shows two mounting variants of a climbing grip according to the invention, although the climbing grip shown is not according to the invention.

According to the first variant, the mounting is carried out from the front, that is, the fixing means 3 penetrates first into the clamping body 7, then into the hole 11 of the climbing wall and then, with a nut of Fixation 12, a screw nut 13 or a conventional nut 14, creates the connection between the climbing grip 1 and the climbing wall 2.

According to a second variant, the mounting is carried out from behind, that is, the fixing means 3 penetrates first into the hole 11 of the climbing wall and then into the holding body 7. Depending on the design of the holding body 7 with hole or thread, a nut 14 may or may not be required.

Figure 8 shows an alternative embodiment of a holding body 7 for a climbing grip according to the invention.

A chamfer 35 is placed on the clamping body 7 for a better filling of the adhesive. Depending on the arrangement, this bevel 35 can be placed on the outside of the contact surface 15 or on the opposite side.

Claims (10)

1. Climbing grip (1) comprising - a body of the grip (4) with an opening (7) and - a clamping body (8) that is translationally and rotationally fixed in the opening (7), where - the climbing grip (1) can be fixed to a climbing wall (2) by means of the clamping body (8) and a clamping means (3) cooperating with the clamping body (8), - the clamping body (8) is positioned in the opening (7) in such a way that the clamping body (8) protrudes at the rear (6) of the grip body (4), - the clamping body (8) has been subsequently inserted into the climbing grip, and - the positioning of the clamping body (8) takes place by gluing it into the opening (7). Climbing grip according to claim 1, wherein the clamping body (8) further reinforces the grip body (4). Climbing grip according to any one of the preceding claims, wherein the aperture (7) has a round section and / or wherein the aperture (7) completely passes through the body of the grip (4). Climbing grip according to one of the preceding claims, wherein the holding body (8) has a cylindrical shape. Climbing grip according to one of the preceding claims, wherein the holding body (8) has - a through hole (9), or - a thread (27), or - a pin (31) with thread (32). Climbing grip according to one of the preceding claims, wherein the outer surface (16) of the holding body (8) does not have a smooth surface. Climbing grip according to one of the preceding claims, wherein the holding body (8) has a bevel (35). Climbing grip according to one of the preceding claims, wherein on a contact surface (15) of the clamping body with the climbing wall and / or on the rear (6) of the grip body (4) A sheet (17) is attached to increase the friction between the clamping body and the climbing wall and / or between the grip body and the climbing wall. Climbing grip according to one of the preceding claims, wherein the climbing grip is produced in a 3D printing process. Climbing grip according to the preceding claim, wherein the grip body (8) and the grip body (4) are produced in the 3D printing process with different materials.