DE560991A - - Google Patents

Description

With tripods, it is common to use ball joints to hold the support surface of the tripod to bring it quickly into any position S required for the respective purposes and then to secure it in this position. Therefor Clamping means are already proposed, which both the tripod feet and the tripod head top set at the same time. It is also known to use the upper dies of the stand feet to be shell-shaped and to be pressed from the outside by means of a clamping device against an approximately shell-shaped joint ball or to train the upper joints of the tripod feet themselves as balls and also by means of Determine clamping device, the latter is connected to the tripod plate, or fix the joint ball using a clamping device screwed in from below. It is also known to design the joint ball in several parts or to be resilient.

In contrast, the innovation according to the invention is based essentially in the fact that the Clamping means is screwed in from below in such a way that a resilient hollow ball is spread apart and at the same time the cup-shaped joints the tripod feet can be stretched outwards against a shell. This will make a better one and secure guidance of the individual parts and therefore greater stability. The individual head sections are more easily accessible despite the design being as closed as possible to the outside. The tripod feet can be swiveled to cover the tripod head or to use a ball-and-socket joint.

This is achieved in that the tripod plate by a pin with a multiple slotted, spherical attachment which can be expanded by a conical body is. This approach is a hollow sphere formed from hemispherical shells, the ends of the dome-shaped Tripod feet is included like bearings. The individual shells are detachably connected to one another. The interior of this ball attachment forms the holding or guide part for one Approach of the locking part. The actuating linkage of the locking part is used both for Clamping as well as swiveling the tripod plate. It sticks out from below Ball lugs out. The ball joint outer shells have on opposite sides Make openings through which the tripod journal or the clamping rods of the spherical tripod head part.

The drawing shows the subject matter of the invention in two embodiments, and that is:

Fig. Ι a middle longitudinal section through the tripod head top and the upper end a tripod base,

Fig. 2 the tripod head in plan view,

Fig. 3 is a side view of the stand top and Fig. 4 is a second embodiment of the

Firm gill agent, the latter in the middle longitudinal section.

Two hemispherical senates ¹¹ S> i ¹ have three graded round perforations or recesses g ² in the middle circumferential S line of the shells at the same angle to each other , into which ends d, d ^{2 of} the stand feet e corresponding to these ends in the shape of a card insert. This

To stand foot ends with their inner surface d ¹ , which protrudes slightly over the inner surface of the shells gg ¹ inward, on the outer surface of the previously inserted into the shell g spherical extension α of the stand plate h . The upper shell g ¹ engages with projections g ⁶ over the lower shell g. Connecting means (screws or the like) g ^s , which penetrate these projections g ^e , are used for the releasable connection of the two shells g ″ and g ^1. The stand feet e can be pivoted tangentially to the inner and outer ball through this type of mounting the upper, g-, the "opposite openings g ² and g ^{a of} the 'shells g and g ¹ engages a pin h ^{1 of} the tripod plate h, on which the spherical extension α is attached. The pin c ² of the part c blocking the multiple slotted ball attachment α protrudes through the other opening g ^s .

At the lower end c ^{3 of} this pin c ² sits a dreifrujgeliger handle, the wings of which c ⁴ , c ⁵ , c ⁶ (Fig. 2) lie between the stand feet e of the folded stand. A conical part ⁸ (Fig. 1) or c ⁹ (Fig. 4) of the clamping device c is used to spread apart the ball attachment α. An extension h ^{2 of} the locking part c located within the ball shoulder α is designed as a screw in the first embodiment (Fig. 1). This screw engages in a corresponding internal thread a ^{2 of} the pin h ¹ .

In the second embodiment (Fig. 4) the tripod plate h or its pin h ^{1 is provided} with a square i , which engages in a corresponding opening k of the ball attachment α. The pin then has a helical extension h ² which engages in an internal thread c ^{7 of} the locking part c.

Claims (4)

Patent claims: 1. Tripod with ball-and-socket joint, the tripod feet of which are mounted with their upper, shell-like ends between the central ball carrying the device and an outer ring body, characterized in that the clamping means is a cone member (c ⁸ ) inserted from below into the expandable and hollow central ball (a) or c ⁹ ) and the outer ring body consists of two rigid and interconnected shell halves {g, g ¹ ) provided with cutouts at the top and bottom (g ² , g ³ ) . 2. Stand according to claim 1, characterized in that the hollow, with the carrier (h ¹ ) of the top plates Qi) consisting of one piece central ball (α) in the upper part of its central axis has a ^{nut thread (α 2} ) for the screw part Qi ² ) of the clamping bolt (c) carrying the cone part and expediently provided with a three-winged (c * to c ^s ) handle at the bottom. 3. Stand according to claim 1, characterized in that the carrier Qi ¹ ) of the top plate (h) has a projection Qi) inserted from above into the hollow central sphere (α), which is connected by a screw connection (c ⁷ , h ² ) is connected to the clamping bolt (c) . 4. Stand according to claim 1 to 3, characterized in that the outer shell halves (g, g ² ) each other (Fig. 1, right) and corresponding widenings (d ² ) of the shell-like ends (d) of the stand feet (Fig. 1, left) overlap. 1 sheet of drawings Berlin, bridged ifi DtR