DE2835732B2 - Safety ski bindings - Google Patents

Description

The invention relates to a safety ski binding according to the preamble of claim 1.

There are already safety ski bindings with height and side release mechanism known (DE-OS 48 769), where a single spring acts on both the height and side release mechanisms. A spatially compact arrangement is achieved in this way, but with this system do not avoid mutual interference between the side and height release mechanisms. At a Side release will change at the same time the value for the height release and vice versa, or the release mechanism for the release device that is not acted upon becomes unnecessarily slack.

For this reason it has already become known (DE-OS 23 64 298), for the side and height release to provide independent trigger mechanisms with two independently working springs. at this known safety ski binding, however, the structural and spatial expenditure is relatively large, and the joint adjustment of the release strength of the two springs is not possible.

For this reason, an older proposal (DE-OS 28 02 775), two independently working screws

springs for side and height release to be arranged concentrically one inside the other, creating a more compact and space-saving construction is achieved without sacrificing the advantage of an independent effect the two release springs must be dispensed with. With 5 the safety ski bindings according to the older suggestion However, a pull tube is used to transmit the release force from the spring to the height release mechanism required that concentrically surrounds the pull rod provided for the side release mechanism. At a with a tension spring working embodiment of the older proposal, this draw tube can be relatively be short, but the use of compression springs for structural and functional reasons preferable. ι ϊ

The aim of the present invention is now in creating a safety ski binding of the type mentioned at the beginning, with the one without there :. requirement of tension springs a production-wise favorable, structurally simple and at the same time very functionally reliable transmission the forces of the outer spring on the height release mechanism is guaranteed without the Force transmission from the inner spring to the side release mechanism is impaired in any way will.

This object is achieved by the features of claim 1 on the basis of this training on the one hand stands for the internal helical compression spring acting on the side release mechanism a support surface fixed to the housing as well as a passage opening for the pull rod assigned to it Disposal. The external spring, on the other hand, can apply its compressive force directly via the mechanical force transmission elements transferred to the height release mechanism. This is achieved by the inventive ^ ßen construction of the housing in the area of the ends of the two facing the sole holding device Springs achieved.

Advantageous further developments of the invention are characterized by the subclaims.

Due to the embodiments according to claims 7 and 8, the support housing part can be relatively wide be designed so that the support surface for the inner spring has the required size. Nevertheless will Due to the stress on the rocker plates in the area of their narrow sides, the required :: stability for the transmission of the release forces guaranteed.

The embodiment according to claim 9 ensures that the pivoting range of the locking pin does not go through the support housing part containing the passage openings is limited.

The embodiments according to claims 10 to 13 ensure an equalization of the power transmission between the swingarms and the outer one Feather.

Due to the design according to claim 14, the housing part extends on the of the sole holding device remote side further down than in the area of the mentioned recess. However, it is enough not to the bottom of the housing to allow sufficient pivoting range for the locking pin to ensure.

The invention is described below with reference to the drawing; in this shows

F i g. 1 is a partially sectioned side view of a *> 5 safety ski binding according to the invention,

F i g. 2 is a partially sectioned plan view to the right of the central longitudinal axis,

F i g. 3 shows a section along line IH-III in FIG. 1 and

F i g. 4 one to F i g. 1 analogous partially sectioned side view of the same safety ski binding in in Elevation direction triggered condition.

The F i g. 1 to 4 show a safety ski binding that can be released both vertically and laterally The front and heel jaws can be used. On a base plate 22 is about a transverse axis 21 a binding housing 25 is pivotably articulated. The base plate 22 is attached to the ski 37 by means of screws 36 attached. At its end facing the shoe, not shown, the housing 25 carries the sole holding device 26, which essentially consists of the one-piece sole holder 32. The transverse axis 21 is provided at the end of the housing 25 facing away from the sole holding device 26 in order to provide a to enable unhindered pivoting of the housing 25 when triggered.

The height release device has a component 38 which extends upwards from the base plate 22 and which carries a release link 13 at its end facing away from the sole holder 32. This link 13 works together with a locking pin 14 which connects two rockers 30 to one another at their lower end. The rockers 30 are made of stamped sheet metal and are arranged so that the vertical on its plane points in the transverse direction. In the area of their upper end, the rockers 30 are fastened to the housing 25 so as to be pivotable about a transverse axis 29 by means of pins having heads 61.

From the upper region of the housing 25 extends at 62 in the immediate vicinity of the sole holder 32 a material bridge downwards a support housing part 27, between which and the side areas 25 ' (F i g. 3) of the housing 25 is a slot-like passage opening 10 through which the mentioned rockers 30 extend.

The component 38 carrying the link 13 extends according to FIG. 1 in relation to the height release closed position in a recess 3 of the housing part 27. Im of the sole holding device 26 further away: the area extends the housing part 27 further down to its of the sole holding device 26 facing away from the end face according to FIG. 3 a substantially circular support surface 8 for a inner trip coil spring 11 to form. The other end of the inner spring 11 rests on one Stop nut 20 which is screwed onto the threaded end 43 of a pull rod 17. The pull rod 17 runs through the interior of the inner spring U back to the support housing part 27, which is in the middle Area has a passage opening 9 through which the tie rod 17 extends with play, in particular in Side direction extends therethrough. At 31, the tie rod is pivotable about a vertical axis on the sole holder 32 hinged. The inner spring 11 pulls due to this structural design on the pull rod 17 Sole holder 32 against tilting lugs 15 of the housing 25 arranged laterally relative to the central longitudinal axis. In the event of excessive lateral force in the direction of the arrow Sin Fi g. 2 pivots the sole holder 32 by means of its support surface 16 around the tilting nose 15, wherein dif; inner release spring 11 over the pull rod 17 is squeezed. The side release in the opposite direction takes place in the same way.

The height release mechanism formed by the link 13 and the locking pin 14 is via the Swing 30 from a concentric to the inner spring

11 arranged outer helical compression spring 12 is applied with a larger diameter. The one from the sole holder 32 facing away from the end of the outer spring 12 is supported on a stop screw 19, which has a Thread 44 is screwed into the housing 25 from the end face facing away from the sole holder 32. the Stop screw 19 has inside a cavity 45 in which the above-mentioned stop nut 20 of the inner spring 11 is arranged freely rotatable.

Both the stop nut 20 and the stop screw 19 have actuating slots 46 and 47 in their end faces, into which z. B. a screwdriver or a coin can be inserted, depending on the tool used, the locking nut 20 and the stop screw 19 are operated independently or together.

The end of the outer height release spring 12 facing the sole holding device 26 is in one with an outer edge provided plastic bearing ring 4 is arranged, which with its from the spring 12 facing away from a support ring 7 receives. The support ring 7 is expediently made of metal and points on both sides according to FIG. 1 rounded wells 6, in the correspondingly rounded cam-like projections 5 of the rockers 30 engage. In this way, the compression spring 12 can over the rings 4, 7 transmit a release force to the rockers 30 and thus to the locking pin 14.

In the upper area of the support housing part 27 there is also a cutout 2, which is shown in FIG F i g. 2, however, from the side of the springs 11, 12 only up to to the material bridge 62 extends forward. In this Cut-outs are laterally depressions SCI into which the heads 61 of the pins defining the axis of rotation 29 fit in. The pegs in question can therefore move from the cutout 2 into the ones provided for them Cross bores of the housing 25 are inserted.

In addition, a display member 59 is arranged in the cutout 2, which by a the Detail 2 from the top closing viewing window 1 is visible and over a shoulder 50 and one of the round ones Shape of the spring 11 adapted plastic tube 49 with the stop nut 20 facing end of the inner spring U is connected in such a way that it joins their movements in the longitudinal direction. To this In this way, the display element 59 shows the release force of the inner spring 11. One in the area of the inner edge the stop screw 19 provided further viewing window 23 (Figure 4) allows based on the position of inner edge of the stop screw 19 an assessment

H) development of the release hardness of the outer spring 12 after F i g. 3, the display member 59 and the extension 50 are so fitting in the non-round, preferably in the Cross-section of rectangular cutout 2 fitted so that the projection 50 is guided axially and against rotation is secured around the longitudinal axis

The function of the safety ski binding according to the invention is as follows:

When attacking an excessive force in the direction of arrow H in FIG. 1, the housing 25 rotates about the transverse axis 21 into the position according to FIG. The outer release pressure spring 12 is compressed via the rockers 30 and the rings 4, 7 until the binding is returned to the closed position according to FIG. 1 is transferred.

The side release is completely independent of the height release when an excessive level occurs Force in the direction of arrow 5 in F i g. 2, wherein the support surface 16 pivots about the tilting nose 15 and the inner spring 11 is compressed via the pull rod 17.

Due to the arrangement according to the invention, the two release springs from the front side of the Binding by inserting tools into the

«Ο slots 46 or 47 independently of one another or also adjusted together.

For this purpose 2 sheets of drawings

Claims (15)

Patent claims: 1. Safety ski binding with a housing which can be pivoted about a transverse axis and which is through acted upon by an external release coil spring adjustable in its preload Height release mechanism held in the closing days and on the one to both sides releasable sole holding device is attached, which by an inner in its bracing to adjustable, arranged within the first release coil spring, supported on one side on the housing The release coil spring is held in its holding or central position, characterized in that that between the end facing the sole holding device (2fi) as a compression spring formed outer spring (12) and the height release mechanism (13,14) in which the support the inner spring (11), which is also designed as a compression spring, serving as the support housing part (27) at least one passage opening (10) extending in the direction of the spring force for reaching through which mediate the power transmission from the spring (12) to the height release mechanism movable mechanical Kraftübei tragungsglieder (30) is provided and the housing part (27) in on in a known manner within the support surface (8) a passage opening (9) for a between the other end of the inner spring (11) and the sole holding device (26) extending tension rod ge (17). 2. Safety ski binding according to claim 1, characterized in that the support housing part (27) extends downwards from the top of the housing (25) leaving at least one and preferably two lateral passage openings (10). 3. Safety ski binding according to claim 1 or 2, characterized in that the height release mechanism at least one and preferably two pivotable about a transverse axis (29) in the housing (25) attached rocker (30) includes which the passage openings (10) reach through and of the Force of the outer spring (12) are applied. 4. A safety ski binding according to claim 3, data 4 ^r> by in that the rocker (30) is hinged to the top of the housing (25) and extends partially downwardly into the passage opening (10). 5. Safety ski binding according to claim 3 or 4, characterized in that on which of the Articulation point (29) facing away from the end of the rocker arm (30) the one element, preferably the locking pin (14) of a locking pin-gate-height release mechanism is arranged, the gate (13) on a base plate (22) fixed to the ski is attached and that the one facing away from the sole holding device (26) The passage opening (10) extends through the area of the rocker arm (30). 6. Safety ski binding according to claim 5, characterized in that the locking pin (14) the connects two rockers (30) outside of the passage openings (10). 7. Safety ski binding according to one of claims 3 to 6, characterized in that the Swing (30) are made of sheet metal. 8. Safety ski binding according to one of the preceding claims, characterized in that the passage openings (10) are designed as slots. 9. Safety ski binding according to one of claims 5 to 8, characterized in that the Latching pin (14) extends over the lower end of the support housing part containing the passage openings (10) (27) extends downwards 10. Safety ski binding according to one of claims 3 to 9, characterized in that between the areas of the rockers (30) penetrating through the passage openings (10) and the end of the outer spring (12) a support ring (7), preferably made of metal, is connected 11. Safety ski binding according to claim 10, characterized in that the support ring (7) is in contact with the passage openings (10) through areas of the rocker (30) has recesses (6) 12. Safety ski binding according to claim 11, characterized in that the rockers (30) penetrate through the openings (10) Areas have cam-like, rounded projections (5), which in the correspondingly rounded Engage recesses (6). 13. Safety ski binding according to one of claims 10 to 12, characterized in that between Support ring (7) and spring end of a bearing ring (4) is connected. 14. Safety ski binding according to one of the preceding claims, characterized in that the support housing part (27) has an upwardly extending recess (3) for receiving the Has gate (13) bearing component. 15. Safety ski binding according to one of the preceding claims, characterized in that the support housing part (27) containing the passage openings (10) above the passage opening (9) a cutout (2) open at the top or closed by a viewing window (1) Receiving a display member (59) for the release hardness of the inner spring (11).