JP2013520592A5

JP2013520592A5 -

Info

Publication number: JP2013520592A5
Application number: JP2012554965A
Authority: JP
Filing date: 2010-02-26
Publication date: 2014-03-13
Anticipated expiration: 2030-02-26

Claims

Headrail, a bottom member, and a control mechanism adapted to that use with window covering having a shade elements arranged between the head rail and the bottom member,
A drive axle defining a longitudinal axis and operable to rotate for the purpose of raising and lowering the bottom member ;
A fixed housing including a side wall including a first gripping structure and a key member;
A clutch module assembled in the housing and connected to the key member and including a coupling element ;
A reciprocator disposed adjacent to the coupling element ;
One end surface of the coupling element includes a second gripping structure that faces the first gripping structure in an axial direction, and a hole for assembling the drive axle so as to pass through the coupling element ;
The coupling element and the second gripping structure are independent of the drive axle in the rotational direction and are movable along the drive axle;
The coupling element is further movable with the second gripping structure along the drive axle between a first position and a second position driven by rotation of the drive axle;
The first gripping structure and the second gripping structure, the rotation of the drive axle are spaced axially from one another when the coupling element is in the first position is permitted, said first gripping structure and the second The gripping structure is in contact with each other and engaged in the axial direction when the coupling elements are in the second position and the rotation of the drive axle is blocked ,
The reciprocator defines a guide track that interacts with the key member;
The key member moves relatively along the guide track by the rotation of the reciprocator, and the shaft between the first position and the second position of the coupling element and the second gripping structure with respect to the drive axle. control mechanism Ru brought movement in the direction.

Before SL reciprocator is driven in the rotational direction by the coupling element,
The reciprocator includes a guide track that engages the key member;
The control mechanism according to claim 1, wherein rotation of the reciprocator causes the key member to move relative to the guide track, resulting in movement of the coupling element and the second gripping structure relative to the drive axle.

The rotation of the coupling element can be transmitted to the reciprocator via a locking structure between the coupling element and the reciprocator;
When the abutment of the key member with a part of the guide track blocks the rotation of the reciprocator in the first direction, the locking structure releases the reciprocator from the coupling element and 3. A control mechanism according to claim 2 , which allows rotation of the element in a first direction.

The locking structure includes a coil spring attached between the reciprocator element and the coupling element;
The control mechanism according to claim 3 , wherein the coil spring has an end attached around the coupling element and connected to the reciprocator element .

The control mechanism of claim 3 , wherein the guide track includes a plurality of bendable areas that are engageable with the key member for stopping the reciprocator element at different positions along the drive axle.

The control mechanism according to claim 5 , wherein the first gripping structure and the second gripping structure are engaged with each other when the key is engaged with the first bending region.

The rotation of the drive axle in the second direction opposite to the first direction is transmitted from the coupling element to the reciprocator via the locking structure, so that the key faces the first bent region. The control mechanism according to claim 6 , wherein the control mechanism is engaged with two bending regions and the second gripping structure moves axially away from the first gripping structure.

Further rotation of the drive axle in the second direction while the key engages the second bending region causes the locking structure to unlock the coupling element, and the coupling element is the reciprocator element. The control mechanism of claim 7 , wherein the control mechanism is allowed to rotate with the drive axle.

The control mechanism according to claim 2 , wherein the second gripping structure includes a plurality of cogs disposed on the end surface of the coupling element facing the side wall of the housing in a radial direction with respect to a longitudinal axis.

The control mechanism of claim 9 , wherein the first gripping structure includes a plurality of corresponding cogs adapted to engage the cogs of the second gripping structure.

The control mechanism of claim 1 , wherein the side wall of the housing includes a hole that allows the drive axle to extend outside a side wall opposite the first gripping structure.

The control mechanism according to claim 11 , wherein an outer side of the side wall includes a fastener member for attaching a cushion device to the housing.

The cushion device is:
A casing,
A rotor including a plurality of radial blades configured to lock the drive axle in a rotational direction;
The control mechanism according to claim 12 , comprising: a cushion medium that contacts the radial blades to prevent rotation of the rotor.

Window covering,
A head axle having a drive axle disposed along a longitudinal axis of rotation and operable to rotate about the axis of rotation ;
A bottom member suspended from the head rail via a cord element;
A shade element suspended between the head rail and the bottom member ;
And pulling and operable code winding module to release the winding of the code elements and the take-up to the respective lowered before Symbol bottom member,
A spring drive unit adapted to rotate the drive axle in a first direction for the purpose of lifting the bottom member ;
Look including a clutch module which is mounted in a housing which is fixed to the head rail,
The housing includes a first gripping structure;
The clutch module includes a coupling element that is locked and operable to rotate with the drive axle about the axis of rotation and is movable along the drive axle;
The coupling element includes an end face having a second gripping structure facing the first gripping structure in an axial direction;
The end face further has a hole into which the drive axle is assembled;
When the driving axle rotates in the first direction, the coupling element and the second gripping structure contact and engage the first gripping structure when the driving axle rotates in the first direction. Is movable axially along the drive axle towards the first gripping structure of the housing until blocking its rotation,
The clutch module moves along the drive axle to disengage the second gripping structure from the first gripping structure in the axial direction when the behavior axle rotates in a second direction opposite the first direction. Window covering that is movable .

15. The second gripping structure includes a plurality of cogs disposed radially on the end surface of the coupling element facing the first gripping structure of the housing with respect to the rotation axis. Window covering.

The window covering of claim 15, wherein the first gripping structure includes a plurality of corresponding cogs adapted to engage the cogs of the second gripping structure.

The first gripping structure is formed inside the side wall of the housing,
The window covering of claim 14, wherein the side wall includes a hole that allows the drive axle to extend outside the side wall opposite the first gripping structure.

18. A window covering according to claim 17, wherein the outside of the side wall includes a fastener member for attaching a cushion device to the housing.

The cushion device is:
A casing,
A rotor configured to lock the drive axle in a rotational direction and including a plurality of radial blades;
A cushioning medium in contact with the radial blade to prevent rotation of the rotor;
19. A window covering according to claim 18 comprising:

The clutch module further includes
A reciprocator element pivotally mounted about the coupling element and sliding along the drive axle locked to the coupling element;
A coil spring mounted between the reciprocator element and the coupling element;
Including
The window covering according to claim 14, wherein the coil spring is rigidly mounted around the coupling element and has an end connected to the reciprocator element.