DE3444465C2 - Device for connecting two components - Google Patents

Abstract

In these containers, which essentially consist of the post (2) and the exposed aggregate concrete profile lamellae (3), the double geared anchor (38) is inserted into the dowel holes (5) prepared for this purpose. The double threaded screw (32) is screwed in and out through a transverse hole in the post (2), while the double gear anchor (38) is secured by the expansion anchor (30). The gear drive key (33 and 33a and b), in contrast to the gear rim (33), has a left-right synchronous gear (33a and 33b) at the front ends. For the purpose of good guidance and support, an operating dowel (29) is inserted into the transverse bore of the post (2) and is covered with the dowel cap (29a) after the assembly is complete. The operating dowel (29) has recesses in the area of the gear chamber (31) and for attaching and connecting to the double gear dowel (38). Larger dowels (38) need more, mini dowels around eight to ten or less, teeth on the gear ring gear (33), so you get teeth that are big enough to start the drive. In the case of very short dowels (38), the expansion dowel (30) has an elliptical and spherical shape. The outer shape of the double geared dowel (38) is also round in cross section and designed as an equilateral triangle in the case of simple dowels that are not structurally stressed. Overall, the double gear anchor (38) can meet the requirements.

Description

3; ■;.; 4th

dowel sleeve (JL) equipped with an opening (8) also has

its preassembled gear screw with the tooth - still has the advantage that it has stabilizing properties

crane /, and the conical nuts, 'with regard to the connection of the structural parts

F; G. 3 a device cut along its longitudinal axis acts

device with drive opening in the assembled state, with 5 In Figures 3 and 6 it can be seen that the gearbox one pre-assembled conical gear screw with hub (1) inside a conical gear screw (5) the ring gear and the conical nuts · whose cross-section decreases towards their ends.

F i g. 4 shows a cross-section through the ring gear and, on the one hand, this also results in small diameters

the dowel sleeve in the area of the drive opening according to sern a still good load-bearing conical nut (6)

Section line in Fig. 2,. io simultaneous reinforcement at the base of the gear crane

F i g. 5 shows a plan view of the circular opening (4), on the other hand the contact pressure of the conical sleeve for the gear drive with the attachable nuts (6) on the dowel sleeve (1) and thus also in the with an annular bead provided cover cap, blind hole (7) extraordinarily increased. The dowel sleeve (1)

F i g. Fig. 6 is a cross-section through the square, in has an inner, threaded web

Used dowel sleeve with "S.teckvor- 15 (15), which is deformed by shear forces of

direction to split in the longitudinal direction, counteracts with a conical mast (3) and lamella (2). Docks (17)

see gear screw, according to the section line in Fig.3 directly next to the ring gear (4) serve as a bearing

isnd; - for the gear screw (5) and have one of the

Fi g; 7 shows a view of the plug-on cap with the drive screw (5) corresponding rounded shape. Her

Bar and ring bulge according to the section line in Fig. 5. 20 The wall is reduced by half the wall thickness

The square cross-section dowel sleeve (1) from the opening sleeve (11) and it has an annular groove (9a) for

Sheet metal, sheet steel or plastic has the opening sleeve (11) attached to its lengthways. Bars (18) on the long

side a round opening (8) with a slip-on device part of the gear screw (5) corresponds approximately to the

device (9) for connecting to an opening sleeve (11). Order of the webs (15) according to FIG. 2 and 3.

For dividing into two halves of equal size, the 25 In the view of FIG. 3 you can see the structure

Dowel sleeve (1) in the central longitudinal plane, insert grooves (ta). and the arrangement of the ring gear (4) on the gear

To insert a gear screw (5), the Du screw (5) and its mounting in the webs (17,

case sleeve (1) can be opened and closed again. YIa). Furthermore, one recognizes the intervention of the opening

The sleeve (1) can also be in one piece, in this case the sleeve (11) is inserted into the opening (8) of the dowel sleeve (1), on which

the gear screw (5) via the open end face in 30 rather also the plug-in groove located in its center plane

Direction of the shortest route to the opening (8) (la) can be seen

and pushed through the ring gear (4) in its In Fig.6 it can be seen that in the square end position. After placing the conical nuts (6) on the cross-section of the two-part dowel sleeve thread of the gear screw (5) and by actuating (1) the plug-in groove (\ a) is in its center plane and the ring gear (4) can be inserted in Movement 35 that the gear screw (5) is set in the center of the and thus tensioned the device and again square conical nut (6). Be triggered in a. In this case, a pre-assembled pre-configuration of the invention can the conical nut (6) in the direction of a blind hole (7), for. B. in a concrete post, its tapered head part of a spherical Abrune be inserted (see Fig. 2). When moving on, have. The ring gear (4) and the opening (8) ben a fitter must ensure that in addition to the 40 can also be made in the middle of the length of the dowel sleeve (1) blind hole (7) a drill hole (Sa) . In order to attach deformations and ToIe- (7) in the case of heavy loads and when the dowel cross-sections are exactly at right angles to the axis of the blind hole. Now that the device can compensate for the satchel, the dowel sleeves (1) can be placed on the spacing and Versten (3) pushed on by a user in its end position in the concrete pillar, will have 45 reinforcing sleeves on the protruding part.

Dowel sleeve (1) an object to be fastened, e.g. B. On the ring gear (4) are eight in the embodiment

an exposed aggregate concrete profile lamella (2), teeth provided with its blind hole, and the diameter of the toothed crane

(7) with a square cross-section up to the stop of the zes (4) at the strongest point corresponds to the inner device when the post (3) touches the diameter of the dowel sleeve (1); but he can with very melle (2) attached. 50 strong dowel sleeves through recesses on these

In Fig. 4 it can be seen that the cross-section is increased while the gear screw

square dowel sleeve (1) in the region of its opening (5) can also have a point at its ends.

(8) and the slip-on device (9) of the ring gear (4) in FIG. 5 it can be seen that the opening sleeve (11) has a total of eight teeth, which according to FIG. 2 have a round cross-sectional shape and are conical in their longitudinal direction and, in cross-section 55 view at their lower view, form triangles with the dowel sleeve (1). Likewise, a toothed ring with a connecting part, which has a recess, can also be used for a plurality of teeth. The secure attachment and to connect an annular bulge (8) of the dowel sleeve (1) sits inwards in a (Sb), which pushed into the opening (8) of the dowel sleeve (1) a circular plug-on device (9) with an annular groove and engages in the annular groove (9a). With the inven- (9a) for attaching the opening sleeve (11), so that the device according to the invention, an invisible fastening is possible after the progress of the post (3) with the lamella (2).

chen its end position, as it is z. B. the view according to In one embodiment, the opening sleeve

F i g. 3 shows, with a gear drive key possible (11) a diameter which corresponds to the diameter of the

is borrowed, through the opening sleeve (11) in the concrete post (3) corresponds to dowel sleeve (1). This achieves the according to Fig. 2 the ring gear (4) of the gear screw 65 largest possible drive surface for a gear

(5) with the conical nuts (6) attached to it to the operating key according to FIG. 3. It is intended that the

make. Design the ring gear (4) in such a way that as many

The square cross-section with the drive directions with just one gear drive key

are operating. The inventive form of the
The ring gear (4) can also be used by machines
to operate the gear screw.

In Fig. 7 it can be seen that the cover of the opening sleeve (11) with its outwardly directed opening has a domed cap (19) with a push-on part (20) corresponding to its inner diameter.
and a circumferential annular bead (21), the in
the opening sleeve incorporated annular grooves (1Oa ^ of the io guide and holder of the transmission drive key
to serve.

For this purpose I sheet drawings

20th

25th

30th

35

40

45

50

55

60

65

Claims (12)

Patent claims: 1. Device for the connection invisible from the outside two components, consisting of one with a right-hand and a left-hand thread Gear screw, which has a profiled approach approximately in the longitudinal center and from each one Blind hole of the two components to be connected engaging, receiving the ends of the gear screw Dowel sleeve parts, characterized in that that the dowel sleeve parts to a uniform, square in cross section and with a Drive opening (8) provided dowel sleeve (1) are formed that on the ends of the gear screw (5) sit square conical nuts and that the approach is designed as a toothed ring (4) 2. Device according to claim 1, characterized in that that the dowel sleeve (1) consists of two parts, which by means of a push-button connector can be connected to one another both in the longitudinal and in the transverse direction. 3. Apparatus according to claim 1 or 2, characterized in that the dowel sleeve (1) on both sides of the ring gear (4) has a respective web (17, Ma) with a rounded portion corresponding to the gear screw (5) 4. Device according to one of claims 1 to 3, characterized in that the dowel sleeve (1) to has a uniformly decreasing wall thickness towards the ends. 5. Device according to one of the preceding claims, characterized in that the dowel sleeve (1) has webs (15, 18) which have threads adapted to the gear screw (5). 6. Device according to one of the preceding claims, characterized in that the edge of the The opening (8) is provided with a plug-on device (9) for connection to an opening sleeve (11) is. 7. Apparatus according to claim 6, characterized in that the webs (17) in the region of the opening sleeve (11) are reduced to half the wall thickness. 8. Apparatus according to claim 6 or 7, characterized in that the plug-on device (9) consists of an annular groove (9a) in the dowel sleeve (1) and an annular bead (8b) in the opening sleeve (11). 9. Device according to one of the preceding claims, characterized in that the ring gear (4) the gear screw (5) has eight teeth, the conical surfaces in their longitudinal direction and have a corresponding triangular shape in cross-section. 10. Device according to one of the preceding claims, characterized in that the gear screw is tapered towards its ends. 11. Device according to one of the preceding claims, characterized in that the opening sleeve (11) is provided with a hat cap after assembly has been completed (19) is covered. 12. Device according to one of the preceding claims, characterized in that the dowel sleeve (1), the opening sleeve (11) and the cap (19) are made of plastic. The invention relates to a device for the externally invisible connection of two components, consisting of a gear screw provided with a right-hand and a left-hand thread, which has a profiled projection approximately in the longitudinal center and which engages in a blind hole in each of the two components to be connected, which Ends of the gear screw receiving dowel sleeve parts.
Such a connecting device is through the ίο German utility models 19 74 837 and 71 14 557 known In the known devices, the dowel sleeve parts are designed as separate parts and when the gear screw is operated, the slotted dowel sleeve parts are opened by means of the screw spread and the components connected to the dowel sleeve parts moved towards each other Actuation of the gear screw is designed as a polygonal shoulder to attack an operating key, so that a relatively large space is required for the pivoting movement of the operating key will. For components that were already installed before the Such devices are not very suitable The invention is based on the object of an easily detachable connection that absorbs large transverse forces to create for components, a compact design of the device is to be achieved. This object is achieved according to the invention in that the dowel sleeve parts form a single, im Cross-section square and provided with a drive opening dowel sleeve are formed that on the ends of the gear screw sit square cone nuts and that the approach is designed as a ring gear is. When attaching an object, at least one side of which must be free from optical interference must, e.g. B. when attaching a exposed aggregate concrete profile lamella on a profiled concrete post, the square one also has a stiffening effect Achieved cross-section of the dowel sleeve. This is done in prepared square blind holes, whose Depth can be less than usual dowel holes, one The prepared dowel sleeve connected to the gear screw is pushed in until it fits onto the respective The bottom or bottom of the blind hole comes to a stop. On the now protruding part of the dowel sleeve the object to be fastened is pushed off until it also comes to a stop in the blind hole. After that, will about 90 degrees to the longitudinal axis of the dowel sleeve opening like this is the gear screw with the gear rim set in motion by rotary movements generated by hand or with a machine, the so to connecting objects get an extremely strong and stable connection. Further expedient refinements of the invention are the subject of the subclaims. The advantages achieved by the invention are in particular that instead of several connecting elements A single one is sufficient for a fastening and that each of these connections is largely invisible can be easily solved again. Embodiments of the invention are shown in the drawing and will be described in more detail below described. It shows Fig. 1 is a longitudinal section through the square blind hole of an exposed aggregate concrete profile lamella, F i g. 2 a connection cut along its longitudinal axis