Rapid safety cord concentrator

Abstract

The present invention provides a rapid safety cord concentrator, and more particularly a cord concentrator, having application in window curtains, which binds the free ends of pull cords, and enables the external force produced at the outset of the pull cords being operated by accident to be transmitted linearly into the cord concentrator. Accordingly, the binding stationary state gripping force of the cord concentrator on the pull cords is easily broke apart, thus causing the cord concentrator to instantly lose its gripping force on the pull cords and rapidly separating therefrom, thereby immediately releasing entangled limbs or torso from the pull cords.

Description

BACKGROUND OF THE INVENTION(a) Field of the InventionThe present invention relates to a rapid safety cord concentrator, and more particularly to a rapid safety cord concentrator that directly uses the initial binding force produced due to the limbs or torso becoming entangled by the pull cords at the outset of the pull cords of a window curtain being operated by accident, and lightly transfers this binding force to counteract a stationary state gripping force interior of a cord concentrator, thereby causing the cord concentrator to instantly separate from the free ends of the pull cords.(b) Description of the Prior ArtRegardless of whether a window curtain 100 (as depicted in FIG. 1) is of vertical type or horizontal type or curtain shade type, adjustment or roll up or roll down operation of the light shading width or light beam incident angle of the window curtain 100 requires a linkage unit located at the side of a rail on the window curtain to transmit the operating motive force....

AI Technical Summary

Benefits of technology

A primarily objective of the present invention is to use gripping devices fitted to a cord concentrator to enable binding of the hanging ends of a plurality of single pull cords hanging down in parallel, the binding being effective when the pull cords are in a stationary state. When the pull cords are pulled, then the hands grasping and pressing the cord concentrator is used to assist the gripping devices in obtaining maximum dynamic state gripping force required for dynamic operation, and enabling a force application to be effectively transmitted to the pull cords through the cord concentrator, the force being directed towards the window curtain shade. Wherein the stationary state gripping force is a light binding force, which can be easily broke apart when subjected to a light external force from the pull cords being operated by accident, thereby achieving the objective of rapid safety.

A second objective of the present invention is to provide the cord concentrator with the ability to naturally and rapidly transmit the acting force to the interior of the cord concentrator at the outset of operating the pull cords by accident, and use a linear acting force from vertically directed gripping forces to break apart the gripping devices, thereby obtaining rapid safety effectiveness.

A third objective of the present invention is to enable the cord concentrator to bind the hanging free ends of the pull cords using a gripping force. And under a stationary state, as long as the binding gripping force is sufficient to hold the mass of the cord concentrator, then the cord concentrator is fixed in a stationary bound state. On the contrary, an external force able to disengage the stationary state binding gripping force of the cord concentrator is correspondingly slightly greater than the mass of the cord concentrator, thereby causing the cord concentrator to release its grip and separate from the pull cords.

A fifth objective of the present invention is for the shape of the cord concentrator to be inverse pyramidal, thereby enabling obtaining centrally directed force components when the hands are grasping and pulling the external inclined surfaces of the cord concentrator.

A sixth objective of the present invention lies in pressure-operated bars, the surfaces of which protrude from the exterior of the casing to form perceptible protrusions, which enable drop heights to be formed with the surface of the casing, thereby enabling the hands to begin operating the curtain shade by first conveniently grasping and pressing the pressure-operated bars.

A seventh objective of the present invention is to provide an electronic caution device, which, after the gripping devices have released the pull cords and they become displaced, is actuated, and sound or light means is used to notify and alert the guardian of a child to deal with the situation, thereby assisting in providing perfect safety of the child.

Problems solved by technology

Because of the existence of pull cords, thus, limbs or torso of a child innocently playing with the hanging lower ends of the pull cords frequently become entangled by the pull cords, thereby endangering the child.

M253301 uses a magnetic release device to indirectly split apart the pull cords, thereby enabling separation of the magnetic attraction between sections of the pull cords under circumstances whereby the pull cords are played with by a young child causing the limbs or torso to become entangled, resulting in an inappropriate force application on the pull cords.

Regarding a window curtain provided with pull cords, as long as there are pull cords hanging from an installed window curtain set, there is the potential hazard of danger occurring from the hanging pull cords.

However, with respect to energy conservation and working efficiency, presently, there is no easy replacement for the pull cords or bead chains adopted as the pulling components to implement the roll up and roll down operation of the curtain shade.

Images