Land vehicles – Ski or skate appliance or attachment – Ski pole
Reexamination Certificate
1999-01-29
2001-07-24
Mai, Lanna (Department: 3619)
Land vehicles
Ski or skate appliance or attachment
Ski pole
C280S821000
Reexamination Certificate
active
06264242
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a pole grip for ski poles, hiking canes, trekking canes and the like with a wrist strap which can be locked via a first connecting element fixed on the wrist strap with the pole grip in a manner which is releasable under a tensile load, the first connecting element being arranged in a recess in the pole grip.
BACKGROUND OF THE INVENTION
Commercially available ski poles with wrist straps fixed on the pole grip are relatively awkward to handle if it is necessary to pull the hands often out of the wrist straps, such as is necessary when riding a lift in the course of alpine skiing. So-called “epée grips” were developed, which no longer have wrist straps. In connection with these grips it is disadvantageous that they do not provide a sufficient support function for the skier and the pole is immediately lost when it is released.
In connection with a pole grip known from DE 28 08 549 A1, the first connecting element is embodied in the form of a fork on its end facing the wrist strap and can be locked in place by means of a holding pin, which is retained in a pole recess which is open toward the top. It is disadvantageous with this construction that to re-fasten the first connecting element with the pole grip after having released the safety device requires essentially as much strength as is required for releasing the safety device; in other words, re-fastening is awkward and elaborate. In addition, with this construction there is the chance of releasing the safety not only in the longitudinal direction of the pole, but also in a direction transversely to the pole grip, which is not desired. There is no possibility of releasing the wrist strap purposely and without an essential use of force from the pole grip.
In connection with a pole grip known from DE 78 04 390 U1, the connecting element can be releasably locked in place between a stationary pole grip face plate and an insert maintained in the pole handle, in a way in which the insert is resilient in a direction pointing toward the pole tip. Here, the above mentioned disadvantages essentially result, wherein the release device in particular is essentially opposite the one essential for a safety release.
Another known pole grip in accordance with DE 78 08 851 U1 uses a hinged cover on the front face of the grip head, which is flipped open by pulling on the wrist strap so that a free end of the wrist strap is released. Here it is difficult to reinsert the wrist strap in the safety release and to fix it in place under the cover to be locked, and then to reinsert the glove into the strap.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a pole grip for ski poles, hiking canes, trekking canes and the like of the type mentioned at the outset wherein, after a safety release, the re-connection between the wrist strap and the pole grip can take place with a minimal insertion force independently of the size of the triggering force in a simple and rapid manner, and wherein the intentional release of the wrist strap from the pole grip without an essential exertion of force is provided.
In connection with a pole grip of the type mentioned, a second connecting element can be locked together with the first connecting element in the pole grip recess. The second connecting element can be resiliently seated in the longitudinal direction of the pole grip, and on its side facing the front face of the grip head, the recess is covered by an elastically yielding triggering mechanism, between which the second connecting element and the first connecting element are arranged. The second connecting element can be moved counter to the resilient seating by means of an actuating member which is accessible from the front face of the grip head.
It has been achieved by means of the steps in accordance with the present invention that, following a safety release, the first connecting element connected with the wrist strap can be rapidly and simply locked in the pole grip, or respectively between the front face of the grip head and the second connecting element. The exertion of force needed for this is small, since this merely is a function of the corresponding spring force acting on the second connecting element. In contrast to that, the force required for the safety release is a function of the setting of the resiliently yielding trigger plate. Different from the known solutions with covers, a restoring of the trigger plate is assured with the subject of the present invention because of the resiliently yielding trigger plate, so that the pole grip is always ready for the first connecting element being locked again. No further steps are required for this. Further than that, it is also possible with the pole grip in accordance with the present invention to purposely remove the wrist strap from the pole grip by a simple pressure on the actuating member.
When the first connecting element has a detent protrusion which extends behind the second connecting element, the triggering means for releasing need only give to an extent wherein the detent protrusion is freed. Then the first connecting element can be pulled out of the recess.
A preferred seating of the triggering means is provided with an upward oriented tensile pull on the wrist strap, the triggering means can be pivoted around the shaft which is advantageously arranged in accordance with claim
4
, by means of which the locking between the first and the second connecting element is released.
According to one embodiment, the portion of the plate which is to be pivoted rests on a spring-elastic element, so that the compressibility of the spring-elastic element in the end determines the tensile load required for triggering. Alternatively, the element of the triggering means which is to be pivoted has a spring-elastic protrusion extending in the longitudinal direction of the pole grip which is supported on a shoulder in the pole handle.
Alternative embodiments include; triggering mechanism having a center opening in which the actuating member is received the first connecting element having a slit, which is axial in relation to the movement direction, on its inner end, through which a rod extends vertically, which is connected, fixed against relative movement, with the second connecting element and the actuating member arranged in the center axis; the first connecting element extending through a slit, extending in its direction of movement, in the rod, which is connected, fixed against relative movement, with the second connecting element and the actuating member arranged in the center axis; an opening being provided on both sides of the triggering mechanism, and the actuating member being received in the two openings; the actuating member having two actuating keys which penetrate through the openings; two actuating keys o the actuating member being arranged on a U-shaped base member, the base lag of the U-shaped base member constituting the second connecting element; the base member resting with its base leg on the upper end of a helical compression spring, which is guided in an axial blind bore recess; and two actuating keys being covered by a soft coating.
If the pole grip in accordance with the present invention is also intended for a use wherein triggering, even in case of a fall, is not desired, for example in connection with cross-country skiing, wherein the user often moves over difficult terrain and in deep snow and the ski pole must not be lost under any circumstances, the triggering means can be locked by means of a locking device. In this case the pole always remains connected to the hand of the user.
If the wrist strap has been integrated into a glove, the danger of losing the wrist strap is reduced.
The present invention will be explained in detail in what follows by means of several exemplary embodiments, making reference to the drawings. In the drawings are shown in:
REFERENCES:
patent: 3113786 (1963-12-01), Phillipson
patent: 3297333 (1967-01-01), Scwedt et al.
patent: 3658356 (1972-04-01), Van Reyper
pate
Jones Tullar & Cooper P.C.
Mai Lanna
Restifo Jeffrey J.
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