Curtain top track

Abstract

A curtain top track includes a track and at least one telescopic unit. The telescopic unit includes a first housing, a second housing movable relative to the first housing, a rotating member rotatable along an axis, a pushing member, and an elastic member. The rotating member drives the pushing member to move relative to the first housing and has a first pushing portion and a second pushing portion. The vertical distance between the second pushing portion and the axis is greater than the vertical distance between the first pushing portion and the axis. When the pushing member is in a preparatory position, the first pushing portion abuts against the pushing member. When the second pushing portion abuts against the pushing member, the pushing member moves from the preparatory position to a pushing position, and the elastic member is compressed, giving the pushing member better positioning stability and high structural stability.

Claims

1. A curtain top track, comprising: a track defining an installation space extending along a first direction; and at least one telescopic unit disposed in the installation space, including a first housing connected to the track, a second housing movable relative to the first housing along the first direction, a rotating member rotatably disposed on the first housing along an axis, a pushing member disposed on the first housing, and an elastic member with opposite ends abutting against the pushing member and the second housing, the rotating member having a first pushing portion and a second pushing portion, the second pushing portion being perpendicularly distant from the axis than the first pushing portion being perpendicularly distant from the axis, and the elastic member constantly generating potential energy that causes the second housing to move away from the pushing member. The rotating member is used to drive the pushing member to move relative to the first housing in the first direction between a preparatory position and a pushing position. When the pushing member is in the preparatory position, the first pushing part abuts against the pushing member. When the second pushing part abuts against the pushing member, the pushing member moves from the preparatory position to the pushing position. The elastic member is compressed by the pushing member and the second housing to accumulate potential energy. The pushing member and the second housing move closer to each other.

2. The curtain top track as described in claim 1, wherein, The first housing has at least one socket, the second housing has a slot corresponding to the socket, and the telescopic unit further includes a pin that is detachably inserted through the at least one socket and the slot. When the pin is detached from the socket and the slot, the second housing moves away from the first housing along the first direction.

3. The curtain top track as described in claim 2, wherein, The first housing also has two first limiting ribs, and the second housing also has two second limiting ribs. When the pin is removed from the socket and the slot, the second limiting ribs move closer to the first limiting ribs along the first direction.

4. The curtain top track as described in claim 2, wherein, The pin has a hook portion protruding from the first housing and a rod portion connecting the hook portion and passing through the at least one socket and the slot.

5. The curtain top track as described in claim 1, wherein, The telescopic unit also includes an operating member connected to the rotating member, the operating member having a handle protruding from the first housing.

6. The curtain top track as described in claim 1, wherein, The telescopic unit also includes an operating component connected to the rotating component. The rotating component has a first connecting portion with a non-circular cross-section, and the operating component has a second connecting portion with a shape corresponding to the first connecting portion and engaging with the first connecting portion using a convex-concave fit.

7. The curtain top track as described in claim 1, wherein, The telescopic unit also includes an anti-slip pad connected to the second housing and protruding from the track along the first direction.

8. The curtain top track as claimed in claim 1, comprising two telescopic units, the telescopic units being respectively disposed at two opposite ends of the track along the first direction.

9. The curtain top track as described in claim 1, wherein, The rotating component is an elliptical block.

10. The curtain top track as described in claim 1, wherein, The pusher has a concave arc surface facing the rotating member and being recessed, and the second pusher has an arc convex surface with a shape corresponding to the concave arc surface.

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