SE441568B - ANCHORING DEVICE INTENDED FOR MOUNTAIN ROCKING - Google Patents

Description

840¶345 * -7 one end has a sliding body 5.5 '. These sliding bodies are intended to slide with low friction along the opposite sides of the wedge 3 and are wedged between the wedge 3 and the rock crack at tensile load in the eye 2. In order to achieve the least possible friction between the wedge 3 and the sliding bodies 5,5 ', the common sliding surfaces coated with a lubricant, preferably a graphite-containing permanent lubricant. Since at the same time it is desired to obtain the greatest possible friction between the outer sides of the sliding bodies 5.5 'and the rock crack, these sides are provided with grooves.

In order to hold the outer and inner shafts together into a unit, and in such a way that the sliding bodies 5,5 'can be displaced along the wedge 3, the device comprises holding means in the form of a first bolt H now associated with internal threading. second bolt 6 'with external threading, and partly a finger grip 7 which has external threading and also functions as a cohesive bolt.

The bolts 6,6 'are intended to be inserted into corresponding holes 8,8' in the outer shafts ü, Ä 'and then partially screwed together, which is made possible by a longitudinal open gap 9 being received in the inner shaft 1. The finger grip 7 is similarly intended to be inserted into holes l0, l0 'in the outer shafts Ä, U * and in a longitudinal open gap ll in the inner shaft l. The hole 10 has an internal thread which fits the external thread on the finger grip 7. The length of the gap 11 is adapted so that the gap 11 together with the finger grip 7 running therein gives suitable end position limitations for the movement of the sliding bodies 5,5 'relative to the wedge 5.

A compression spring 12 in the form of a coil spring is intended to be inserted into the gap 9 and abut against the screwed-in bolts 6,6 ', so that the wedge 3 attached to the shaft 1 is pressed down between the sliding bodies 5,5', whereby these are moved apart and can be held in position against the walls of the rock fissure even when no tensile load acts in the eye 2.

The diameter of the compression spring is slightly larger than the thickness of the shaft 1. To prevent the spring from getting caught between the shafts Ä, Ä ', grooves are accommodated in these shafts. Such a groove 15 is shown in the shaft ü '; the corresponding groove in the shaft Ä is obscured.

When using the device, it is held in one hand, with the index finger and middle finger on the finger grip 7 and on either side of the shaft 1, and with the thumb on the outer end of the shaft 1 at the eye 2. By pressing with the thumb, the force from the spring 12 is overcome and the device then assumes the position shown in Fig. 1. An elastic ring - not shown in the drawings - of, for example, rubber suitably encloses the shafts M, H 'and li at height with the bolts 6,6', whereby the sliding bodies 5,5 'in all positions, including the position shown in Fig. 1, will abut the wedge 3 or the shaft l.

In the position shown in Fig. 1, the distance between the sliding bodies 5,5 'is at least and these can then be placed in a suitable position in the rock crack. By then releasing the pressure of the thumb and finally completely releasing the device, it will occupy the working layer shown in Fig. 2. Even under heavy load in the rope loop lü inserted through the eye 2, the device will, thanks to the flat pitch of the wedge 3 and the low friction between the wedge 3 and the sliding bodies 5,5 ', be securely locked in the rock crack. If necessary, the device can be easily detached from the crack by pushing upwards on the outer end of the rigid shaft 1- This can be done without effort thanks to the fact that the wedge 5 with low friction acts against the two sliding bodies 5.5 'instead of acting directly against one of the walls of the rift.

The invention is of course not limited to the embodiment shown, but comprises all variants which fall within the scope of the appended claims.

Claims (3)

8401345-7 Patent claims 1. l. Mounting device for rock climbers for detachable anchorage: íbmßm fi dwr, characterized by a) an inner rigid straight shaft (l) which at one end has a load-bearing eye (2) and at the other end has a wedge (3) which widens in the direction away from the eye (2); b) two outer shafts (ü, H ') which are longitudinally displaceably arranged along opposite sides of the inner shaft (1), which two outer shafts (ä, ü') are arranged to receive at one end a preferably joint finger grip (7) and at the other end has a sliding body (5,5 '), which two sliding bodies (5,5') are arranged to slide with low friction along the opposite sides of the wedge (5) and wedge between the wedge ( 3) and the rock crack at tensile load in the eye (2); c) a resilient member (12) extending in the longitudinal direction of the shafts (1, 4, H ') and arranged to lower the wedge (5) between the sliding bodies (5,5') so that they are moved apart and held in position against the walls of the rock crack even when no tensile load acts in the eye (2); d) cohesive means (6,6 ', 7) which hold the outer and inner shafts (1, ä, ü') together into one unit, the outer shafts (4, U ') and associated sliding bodies (5,5') by means of the finger grip (T) can be displaced along the inner shaft (1) between two end positions so as to bring about a reduction of the distance between the sliding bodies (5,5 ') when the device is inserted into a rock crack. K. Fm¶mwhgæmm fi mngemig; mnvl, characterized by the inner shaft (1) having a longitudinal slot (9) which houses the resilient member (12). An anchoring device according to claim 2,1x, characterized in that the resilient member (12) is a compression spring of the coil spring type which acts against cohesion means (6, ó ') which are arranged to run in the longitudinal gap (9). An anchoring device according to claim 1, 2 or 5, characterized in that the inner shaft (1) has a longitudinal slot (II) in which a finger grip (7, common to the two outer shafts (ü, U ') is common (7). ) runs between two end positions.