DE202018104380U1 - Blind fabric up / unwinding - Google Patents

Abstract

Roll-up / unwinding device, comprising a fixed cross bar and a winding tube for winding a blind fabric, wherein at one end of the fixed cross bar a winding shaft connecting part is provided, characterized in that at the other end of the fixed cross bar a rotary control arrangement is provided based acting on the Zusammendruck and the recovery of a coil spring, wherein the winding shaft tube is rotatably mounted between the winding shaft connecting part and the rotary control assembly, wherein the rotary control assembly comprises a control mechanism housing in which a driven by the winding tube tube rotary shaft, a central shaft and a pushed onto the central shaft coil spring are installed, and wherein the central shaft is below the rotary wheel and one end of the outermost turn of the coil spring is connected to one side of the rotary wheel.

Description

TECHNICAL AREA

The present invention relates to the area of the winding device, in particular a roller blind opening / unwinding device.

STATE OF THE ART

Currently commonly used roller blinds come in various forms. In a frequently used variant, a rotary wheel is pulled by means of a cord with beads, which rotary wheel drives a roller blind / curtain material for winding or unwinding via a winding shaft. Such a curtain structure consists of a curtain body, a gear assembly and a pull cord. When pulling the drawstring by a user, a grooving in the hand when touching and applying a force can be easily caused due to the small friction surface of the shearing. When adjusting the winding or unwinding position of the blind fabric, the blind fabric can not be positioned at a desired position when the tensile force is too great or the release of the drawstring is too fast, so that repeated adjustments are necessary and inconvenient use is caused.

DISCLOSURE OF THE INVENTION

It is an object of the present invention to provide a roller blind up / down device in view of the problem in the prior art.

According to the present invention, the object is achieved by the following configuration:

A blind fabric on / unwinding comprises a fixed cross bar (fixed cross bar) and a winding shaft tube for winding a blind fabric, wherein at one end of the fixed cross bar a winding shaft connecting part is provided, and at the other end of the fixed cross bar a rotary control arrangement is provided which operates based on the compression and re-deformation of a coil spring, the winding shaft tube being rotatably mounted between the winding shaft connecting part and the rotary control assembly, the rotary control assembly comprising a control mechanism housing in which a rotary wheel driven by the winding shaft tube, a center shaft and one on the central shaft deferred spiral spring are installed, and wherein the central shaft is below the rotary wheel and one end of the outermost turn of the coil spring is connected to one side of the rotary wheel.

In this case, the control mechanism housing comprises a left housing and a right housing, wherein the left housing combined on one side with the attached cross bar and combined on the other side with the right housing to form a receiving space, and wherein on the right housing a Positioning column and a mounting and connection column are provided, which serve for attaching the rotary wheel and the central shaft and are integrally formed with the right housing.

It is further provided that in the fixed cross bar, an insertion is provided, wherein on the winding shaft connecting part and the left housing in each case an insertion plate is provided which serves to cooperate with the insertion.

Here, in a connected to the winding shaft connecting part side of the winding shaft tube, a first insertion plastic part is inserted, on which a rotary column is protruding, wherein in the center of the winding shaft connecting part accordingly a round hole is provided, in which the rotary column is inserted.

It is further provided that on the outer wall of the first insertion plastic a tuned to the inner wall of the winding shaft tube insertion rib is formed, wherein on the first insertion plastic part a Begrenzungsausnehmung to prevent self-rotation is provided, and wherein within the winding shaft tube tuned to the Begrenzungsausnehmung Boundary bar is provided.

In this case, a roller blind insertion groove is formed between the boundary strip and the winding shaft tube, wherein in one of the roller blind insertion groove assigned location of the winding shaft tube, a strip-shaped opening for leading out a blind fabric is provided.

In this case, a square hole is provided for connection to the winding shaft tube in the middle of the rotary wheel, wherein in a connected to the rotary wheel side of the winding shaft tube, a second insertion plastic part is inserted, on which a square connector body is arranged protruding, which introduced into the square hole is.

The present invention is advantageously characterized in that
Rollostoff-up / unwinding device according to the invention comprises a fixed cross bar and a winding shaft tube for winding a blind fabric, wherein at one end of the fixed cross bar, a winding shaft connecting part is provided, and at the other end of the fixed cross bar a A rotary control arrangement is provided, which operates based on the compression and the reversion of a coil spring, wherein the winding shaft tube is rotatably mounted between the winding shaft connecting part and the rotary control arrangement, wherein the rotary control arrangement comprises a control mechanism housing in which a driven by the winding shaft tube rotary shaft, a central shaft and a coil spring slid on the central shaft is installed, and wherein the central shaft is below the rotary wheel and one end of the outermost turn of the coil spring is connected to one side of the rotary wheel. In use, it is easily pulled with one hand on the lower end of the blind fabric, so that the roller blind material causes the winding shaft tube in rotation and thus the coil spring is compressed under the action of the rotary wheel. Simply by stopping dragging the blind fabric, it can be easily and stably held still at a desired location without springing back, which provides for easy operation.

list of figures

• 1 eine Rollostoff-Auf/Abwickeleinrichtung nach der vorliegenden Erfindung in einer strukturellen Explosionsdarstellung,
• 2 die Drehsteueranordnung nach der vorliegenden Erfindung in einer Explosionsdarstellung,
• 3 das erste Einführ-Kunststoffteil nach der vorliegenden Erfindung in einer schematischen strukturellen Darstellung, und
• 4 das Wickelwellenrohr nach der vorliegenden Erfindung in einer schematischen strukturellen Darstellung.

Show it

• 1 a roller blind / unwinding device according to the present invention in a structural exploded view,
• 2 the rotary control arrangement according to the present invention in an exploded view,
• 3 the first insertion plastic part according to the present invention in a schematic structural representation, and
• 4 the winding shaft tube according to the present invention in a schematic structural representation.

DETAILED EMBODIMENTS

For a better understanding of those skilled in the art, the present invention will be further described hereinbelow, by way of example, with reference to the accompanying drawings, in which the contents in the embodiment do not limit the invention. Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The roller blind opening / unwinding device according to the invention comprises a fixed transverse strip 1 and a winding shaft tube 2 for winding a blind fabric, wherein at one end of the attached transverse strip 1 a winding shaft connecting part 3 is provided, wherein at the other end of the fixed cross bar 1 a rotary control arrangement is provided, which acts based on the Zusammendruck and the reversion of a coil spring, wherein the winding shaft tube 2 rotatably between the winding shaft connecting part 3 and the rotary control assembly is mounted, wherein the rotary control assembly comprises a control mechanism housing in which a through the winding shaft tube 2 driven rotary wheel 6 , a central shaft 7 and one on the central shaft 7 deferred spiral spring 8th are installed, and where the central shaft 7 below the wheel 6 located and one end of the outermost turn of the coil spring 8th to one side of the wheel 6 connected. When using is easily pulled with one hand at the lower end of a blind fabric, which Rollostoff the winding shaft tube 2 set in rotation. If the blind fabric is pulled, the wheel rotates 6 and thus pulls the coil spring 8th which generates a force in an opposite direction. Due to the interaction force alone can be kept still by stopping with the pulling of the blind fabric this exactly, stable and easy at a desired location, without spring back. Thus, a pull cord or a Elektrohubmechanismus omitted and alone by gently pulling at the end of the Rollostoffs with one hand, the winding or unwinding of the blind fabric are made possible, which ensures ease of use and low manufacturing costs.

In the present invention, the control mechanism housing includes a left housing 4 and a right case 5 , where the left housing 4 on one side with the attached crossbar 1 combined connected and on the other side with the right housing 5 combined to form a receiving space, wherein on the right housing 5 a positioning column 10 and a fastening and connecting column 11 are provided for attaching the rotary wheel 6 and the central shaft 7 serve and with the right housing 5 are formed in one piece. The wheel 6 , the central shaft 7 and the coil spring 8th are at the positioning column 10 positioned and mounted, with screws by means of the left housing 4 and the right case 5 are locked and fixed together to form the turn control assembly to form a whole.

It is also envisaged that in the fixed cross bar 1 an insertion groove 12 is provided, wherein on the winding shaft connecting part 3 and the left housing 4 each an insertion plate 13 is provided, which cooperates with the Einführnut 12 serves. Alone by inserting the insertion plate 13 in the insertion groove 12 and screwing with a screw, a mounting post can be formed, which ensures easy and quick installation of the product.

In the present invention is in one with the winding shaft connecting part 3 connected side of the winding shaft tube 2 a first introducer plastic part 14 inserted, on which a rotary column 15 is arranged protruding, wherein in the center of the winding shaft connecting part 13 accordingly a round hole 16 is provided, in which the rotary column 15 is introduced. The winding shaft tube 2 is about the turning column 15 relative to the winding shaft connecting part 3 turned. It is further provided that on the outer wall of the first insertion plastic 14 one on the inner wall of the winding shaft tube 2 tuned insertion rib 17 is formed, wherein on the first insertion plastic part 14 a boundary recess 18 intended to prevent self-rotation. In use, the first introducer plastic part 14 in an end interface of the winding shaft tube 2 inserted and between the insertion rib 17 and the inner wall of the winding shaft tube 2 There is a press fit, which contributes to a simple and quick installation. Inside the winding shaft tube 2 is matched to the Begrenzungsausnehmung 18 boundary strip 19 provided so that when mounting the first insertion plastic part 14 solely by the appropriate introduction of the boundary strip 19 in the limiting recess 18 an accurate assembly is possible. This ensures a comfortable and quick combination and insertion and effectively prevents self-rotation of the winding shaft tube 2 ,

Still further, it is provided that between the boundary strip 19 and the winding shaft tube 2 a roller blind insertion groove 20 is formed, wherein in one of the roller blind insertion groove 20 assigned location of the winding shaft tube 2 a strip-shaped opening for taking out a blind fabric is provided. When attaching a roller blind fabric is an attaching end of the blind fabric from one side of the roller blind insertion groove 20 introduced, without the already attached first introduction plastic part 14 to have to lose weight, whereby a replacement of different blinds by the user is facilitated.

In the present invention is in the center of the rotary wheel 6 a square hole 9 for connecting to the winding shaft tube 2 provided in one with the rotary knob 6 connected side of the winding shaft tube 2 a second insertion plastic part (not shown) is inserted, which has a basically same structure as the first insertion plastic part 14 and differs therefrom in that on the second insertion plastic part a square connecting body is arranged protruding, which in the square hole 9 is introduced, bringing the combination and connection of the wheel 6 with the winding shaft tube 2 be completed and during the rotation of a synchronous transmission of driving power can be made possible.

So far, a preferred embodiment of the present invention has been explained without limiting the invention. Despite the previous disclosure of the preferred embodiment of the invention, there is no limitation of the invention. Those skilled in the art may, from the contents disclosed, make equivalent embodiments with equivalent alterations or modifications, with any simple modifications and equivalents to the foregoing embodiment having regard to the basic technical ideas of the invention without departing from the contents of the embodiment of the invention the scope of the embodiment of the present invention are included.

LIST OF REFERENCE NUMBERS

1

fixed crossbar;

2

Winding shaft tube;

3

Winding shaft connection portion;

4

left housing;

5

right case;

6

rotating gear;

7

Central shaft;

8th

Coil spring;

9

Square hole;

10

positioning pillar;

11

Fastening and connecting column;

12

insertion groove;

13

inject;

14

first introducer plastic part;

15

Rotation (round) column;

16

Round hole;

17

insertion rib;

18

limiting recess;

19

Boundary strip;

20

Rollo fabric insert groove

Claims (7)

Roll-up / unwinding device, comprising a fixed cross bar and a winding tube for winding a blind fabric, wherein at one end of the fixed cross bar a winding shaft connecting part is provided, characterized in that at the other end of the fixed cross bar a rotary control arrangement is provided based acting on the Zusammendruck and the reverse deformation of a spiral spring, wherein the winding shaft tube rotatably between the Winding shaft connecting part and the rotary control arrangement is mounted, wherein the rotary control assembly comprises a control mechanism housing in which a driven by the winding shaft tube rotary shaft, a central shaft and a pushed onto the central shaft coil spring are installed, and wherein the central shaft is below the rotary wheel and one end of the outermost turn of the coil spring is connected to one side of the rotary wheel. Roll-up / unwinding device according to Claim 1 characterized in that the control mechanism housing comprises a left housing and a right housing, wherein the left housing is combined on one side with the fixed cross bar combined and combined on the other side with the right housing to form a receiving space, and wherein on the right housing, a positioning column and a fastening and connecting column are provided, which serve for attaching the rotary wheel and the central shaft and are integrally formed with the right housing. Roll-up / unwinding device according to Claim 2 , characterized in that in the fixed cross bar, an insertion groove is provided, wherein on the winding shaft connecting part and the left housing in each case an insertion plate is provided which serves to cooperate with the insertion. Roll-up / unwinding device according to Claim 1 Characterized in that in a connected to the winding shaft connection portion side of the winding shaft tube, a first lead-in plastic part is inserted, to which a rotation round column is protrusively located, wherein a circular hole is provided in the center of the winding shafts connecting part accordingly, in which the rotary column is introduced. Roll-up / unwinding device according to Claim 4 , characterized in that on the outer wall of the first insertion plastic a tuned to the inner wall of the winding shaft tube insertion rib is formed, wherein on the first insertion plastic part a Begrenzungsausnehmung to prevent self-rotation is provided, and wherein within the winding shaft tube tuned to the Begrenzungsausnehmung Boundary bar is provided. Roll-up / unwinding device according to Claim 5 , characterized in that between the boundary strip and the winding shaft tube a roller blind insertion groove is formed, wherein in one of the roller blind insertion groove assigned location of the winding shaft tube, a strip-shaped opening for leading out a blind fabric is provided. Roll-up / unwinding device according to Claim 4 , characterized in that in the center of the rotary wheel, a square hole is provided for connection to the winding shaft tube, wherein in a connected to the rotary wheel side of the winding shaft tube, a second insertion plastic part is inserted, on which a square connector body is arranged protruding, in the square hole is introduced.

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