DE1515601B2

DE1515601B2 - FLUSH-MOUNTED INSTALLER

Info

Publication number: DE1515601B2
Application number: DE19651515601
Authority: DE
Inventors: Eduard 5890 Klagebach Koch
Original assignee: Dr. Franz & Rutenbeck, 5885 Schalksmühle
Priority date: 1965-12-22
Filing date: 1965-12-22
Publication date: 1972-07-13
Also published as: DE1515601A1

Description

ten Spitzen 4 d auf. Unter den mit Durchlässen 4 b für die Schrauben 5 versehenen oberen Schenkeln 4 a der Spreizkrallen 4 sind V-förmig gebogene, z. B. aus Federstahlblech bestehende, Blattfedern 6 angeordnet, die die oberen Schenkel 4 α der Spreizkrallen 4 gegen die Köfpe 5 α der Verstellschrauben 5 drücken, wodurch die Spreizkrallen 4 bei entsprechender Stellung der Schrauben 5 in die gezeichnete Ausgangslage gelangen. Die federnden Enden 6 b der Blattfedern 6 liegen mit Vorspannung an den oberen Schenkeln 4 α der Spreizkrallen 4 und den unteren Widerlagern an. Die Blattfedern 6 besitzen Schlitze 6 α zum Durchtritt der Schrauben 5. Die Schrauben 5 weisen im Bereich der oberen Schenkel Aa der Spreizkrallen 4 und der Blattfedern 6 einen gewindefreien Schaft 5 b auf. An Stelle der Blattfedern 6 können auch andere Federelemente, wie Schraubenfedern, Schenkelfedern od. dgl. eingesetzt werden.ten tips 4 d . Under the provided with passages 4 b for the screws 5 upper legs 4 a of the expanding claws 4 are V-shaped curved, for. B. made of spring steel sheet, arranged leaf springs 6, which press the upper legs 4 α of the expanding claws 4 against the Köfpe 5 α of the adjusting screws 5, whereby the expanding claws 4 reach the starting position shown when the screws 5 are in the appropriate position. The resilient ends 6 b of the leaf springs 6 are biased against the upper legs 4 α of the expanding claws 4 and the lower abutments. The leaf springs 6 have slots 6 α for the screws 5 to pass through. The screws 5 have a thread-free shaft 5 b in the area of the upper legs Aa of the expanding claws 4 and the leaf springs 6. Instead of the leaf springs 6, other spring elements, such as helical springs, leg springs or the like, can also be used.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 According to the invention, this object is achieved by the fact that the tips of the expanding legs are arranged on the outer side edges of the leg ends

1. Concealed installation apparatus with to his and the expanding claws made of resilient material, fastening in concealed wall boxes serving 5 z. B. spring steel sheet, consist,
Angled expanding claws, the side of the Ap- Through this training of the expanding claws, ie parate-base down reaching two expanding legs by the combination of the features mentioned, will have with tips at the leg ends, on an automatically retensioning and thus permanent apparatus support frame or socket swiveling, loosening-proof spreading attachment achieved. The screws are well supported and adjustable by the tightening action of the expanding claws on their upper legs, due to the fact that the two expanding legs of each claw are characterized by the tips (4 d) of the expanding legs ( 4 c) on the outer side edges of the once in the lateral direction and as a result of which are arranged at the leg ends and the outer side edges of the leg ends on-expanding claws (4) made of resilient material, 15 ordered tips additionally spring like torsion z. B. spring steel sheet exist. or are tensioned and their rebound forces

2. Concealed installation device after loosening the expansion fastening 1, characterized in that the ken. A later retightening of the claw screws Expanding claws (4) in a manner known per se is therefore no longer required.

by under their upper legs (4 a) an- 20 According to a further embodiment of the invention arranged spring elements, z. B. leaf springs (6), in the expanding claws are spring-loaded in a manner known per se towards their starting position by being arranged under their upper legs. Spring elements, e.g. B. leaf springs, in the direction of their

3. Concealed installation device spring-loaded after the initial position. This is insofar as claim 1 or 2, characterized in that the 25 part of the fact that these spring elements, in contrast to the adjusting screws (5) in a manner known per se, mostly used the spreader in the area of the upper leg (4 a) of the spreader - The claws tightening rubber rings claws (4) and the springs underneath are captive and resistant to aging. They have a thread-free shaft (5 b) for elements (6) assembly and disassembly of the installation equipment. 3 ° important automatic resetting of the expanding claws

in its starting position is therefore always with certainty

available, something especially for telecommunications

Flush-mounted installation devices, which are often removed after a long time and elsewhere

The invention relates to a flush-mounted installation that can be reused, which is advantageous.
The smooth functioning of the above-mentioned spring

Wall boxes serving angular expanding claws, elements according to the invention in a simple manner the side of the apparatus base coming down two ensured that the adjusting screws for Spreader legs with points at the leg ends, the expansion claws in a known manner in Beaufweise on the apparatus support frame or base 40 rich the upper claw legs and the one below pivotally mounted and thread-free due to the spring elements located at the top Leg acting screws are adjustable. Have shaft on which the upper claw legs

With known flush-mounted installation devices and the spring elements slide easily up and down these The design is the tips of the expansion legs with the center.

tig arranged at the leg ends and the spreading 45 In the drawing is an embodiment of the claws are made of normal mild steel sheet. <r- flush-mounted installation apparatus according to the invention This is disadvantageous insofar as the expanding claws are shown rigid, which is explained below,
and are inelastic, so that it shows even at low levels

shaping or fatigue of the claw material as well as A bb. 1 a section through a according to the invention

even with slight loosening of the claw screws 50 dung-equipped apparatus base,
a considerable decrease in the holding effect of A b b. 2 is a side view of this apparatus-Sok-

Spreading fastening occurs. With these well-known un-

plastered installation devices, especially with plug-in A b b. 3 the perspective view of an expansion box, which claw and continuously exposed to tensile stresses

are, it is therefore often necessary to remove the claws 55 A b b. 4 the perspective view of a spring screw to tighten from time to time. These Arlementes.

Work is uncomfortable and can also be done if it is from Am apparatus base 1 by means of flared sockets 2

Laypeople is executed, be endangering, as it is attached to the apparatus support frame 3, which engages with feet removing the 3 α current-carrying against contact in recesses 1 α of the base 1. The parts-protective apparatus covers are required. gene with their upper legs 4 α through slots 3 b

The invention is based on the object of eliminating the disadvantages of the described known impurities shown on the support frame 3 in the base recesses 1 a. The lower edges of the slots 3 b form the plastering installation apparatus to be eliminated, ie a pivot bearing for the expanding claws 4, which can be created by expanding fastening, in which no spare 65 screws 5 can be adjusted.

the holding effect can occur and in the case of the in- The expanding claws 4 each have two sides of the base

provided that no subsequent tightening of the Krallenschrau- kels 1 down-range expansion limbs 4 c with the ben is necessary. outer side edges of the leg ends arranged