CN109380963B

CN109380963B - Limiter for curtain operating line and curtain using same

Info

Publication number: CN109380963B
Application number: CN201710669764.3A
Authority: CN
Inventors: 黄乾峰
Original assignee: Teh Yor Industrial Co Ltd
Current assignee: Teh Yor Industrial Co Ltd
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2021-09-07
Anticipated expiration: 2037-08-08
Also published as: CN109380963A

Abstract

A limiter for a window covering operating cord, comprising: a housing having an opening; a sliding part, which is provided with an inner cavity and a slot, and is assembled with the shell in a sliding way, so that the sliding part can slide between a first position and a second position, wherein: the sliding piece shields the opening and exposes the open slot when in the first position, so that a window curtain operating line can be conveniently inserted into the open slot; when the sliding piece is at the second position, the groove is formed in the sliding piece and retracts towards the inner side of the shell, and the inner cavity and the opening are overlapped, so that the curtain operating line can slide through the shell and the sliding piece through the opening and the inner cavity; and a spring, connect with the sliding part and the outer cover separately, the spring can impel the sliding part to slip towards the first position.

Description

Limiter for curtain operating line and curtain using same

Technical Field

The invention relates to a limiter of a curtain and the curtain using the limiter.

Background

In general, curtains are often used in homes to block sunlight, protect privacy or decorate the environment, and most of the curtain curtains are controlled to open or close through a hanging operating rope. However, the hanging operating cord is easily swung. In addition, the hanging operation rope is likely to be caught by a child and played as a toy, and the operation rope is likely to be wound around the neck of the child with a small carelessness, resulting in a fatal risk.

In view of the above, there is a need for a mechanism device for limiting the operating cord of a window covering to solve at least the above problems.

Disclosure of Invention

The present invention provides a limiter for a window covering operating line, comprising: a housing having an opening; a sliding part, which is provided with an inner cavity and a slot, and is assembled with the shell in a sliding way, so that the sliding part can slide between a first position and a second position, wherein: the sliding piece shields the opening and exposes the open slot when in the first position, so that a window curtain operating line can be conveniently inserted into the open slot; when the sliding piece is at the second position, the groove is arranged on the sliding piece and retracts towards the inner side of the shell, and the inner cavity and the opening are approximately overlapped so as to be beneficial to the curtain operating line to slide through the shell and the sliding piece through the opening and the inner cavity; and a spring, connect with the sliding part and the outer cover separately, the spring can impel the sliding part to slip towards the first position.

In addition, the present invention also provides a window covering comprising: the operating wire is used for driving the shielding component to move; and the limiter, wherein the operating wire is extended through the limiter.

The limiter of the invention has the advantages of simple structure, and can prevent the curtain operating line from swinging and fix the curtain operating line at a height which can not be reached by children, thereby avoiding the risk that the curtain operating line winds around the neck of the children.

Drawings

Fig. 1 and 2 are perspective views illustrating a stopper for limiting a curtain operating line according to an embodiment of the present invention from different viewing angles.

Fig. 3 is a side view showing the limiter.

Fig. 4 is a sectional view showing the limiter.

Fig. 5 and 6 are exploded views showing the limiter from different perspectives.

Fig. 7 and 8 are side views showing the slider of the limiter in a second position.

FIG. 9 is a schematic view showing a state where the stopper is combined with the curtain in use.

Fig. 10 is an enlarged view illustrating the operating line of the window covering of fig. 9 passing through the stopper.

Fig. 11 is a sectional view illustrating the operating line of the window covering of fig. 9 passing through a stopper.

Fig. 12 is a cross-sectional view showing the operating line of the window covering of fig. 9 passing through the restrainer and the restrainer being locked to the fixed surface.

Fig. 13 and 14 are schematic views showing another state of use in which the stopper is combined with the window covering.

Detailed Description

Fig. 1 and 2 are perspective views illustrating a limiter 100 for a window shade operating line according to an embodiment of the present invention from different perspectives, fig. 3 is a side view illustrating the limiter 100, fig. 4 is a sectional view illustrating the limiter 100, and fig. 5 and 6 are exploded views illustrating the limiter 100 from different perspectives. Referring to fig. 1-6, the limiter 100 includes a housing 102, a slider 104, and a spring 106. The housing 102 is rigid and has a hollow interior to facilitate combination of the slider 104 and the spring 106. Moreover, the housing 102 may have any suitable shape. According to one embodiment, the housing 102 may have a square or rectangular shape, but the invention is not limited thereto and the housing 102 may have other shapes. The hollow interior of the housing 102 may be defined in part by a plurality of side surfaces, including two

opposing side surfaces

102A, 102B and two other

opposing side surfaces

102C, 102D. According to one embodiment, the housing 102 has four sides, and two

side surfaces

102A and 102B are parallel and connected to two

other side surfaces

102C and 102D, respectively, and the two

side surfaces

102C and 102D are also parallel. Two

openings

108, 110 are respectively disposed on the two

side surfaces

102A, 102B, and the two

openings

108, 110 are respectively communicated with the hollow inner side of the housing 102, so that the curtain operating wire can pass through the housing 102 through the two

openings

108, 110. To facilitate installation of the shade operating cord in the housing 102, the side surface 102D may also be provided with a channel 116 that communicates with the two

openings

108, 110 and the hollow interior of the housing 102, respectively. In addition, two through

holes

112A and 114A are formed in the side surface 102C, another two through

holes

112B and 114B are formed in the side surface 102D, and the through

holes

112A and 114A are aligned with the through

holes

112B and 114B, respectively. An opening 130 is also provided at one end of the housing 102, the opening 130 communicating with the hollow interior of the housing 102.

With continued reference to fig. 1-6, the sliding member 104 is slidably coupled to the housing 102 through the opening 130 such that the sliding member 104 can slide along a longitudinal axis Y relative to the housing 102. The slider 104 is of a hard material and may have any suitable shape. According to one embodiment, the sliding member 104 has a square or rectangular shape, for example, but the invention is not limited thereto, and the sliding member 104 may have other shapes. The slider 104 may have a plurality of side surfaces, including two

opposing side surfaces

104A, 104B and two other

opposing side surfaces

104C, 104D. According to an embodiment, the sliding member 104 has four sides, for example, and two

side surfaces

104A and 104B are parallel and connected to the other two

side surfaces

104C and 104D, respectively, and the two

side surfaces

104C and 104D are also parallel. The slide 104 has a slot 118 and a lumen 120 disposed therein along the longitudinal axis Y. The slot 118 is spaced from the cavity 120, the slot 118 having openings in the

side surfaces

104A, 104B, respectively, and the cavity 120 having openings in the

side surfaces

104A, 104B, respectively, such that the window covering operating wire can be passed through the slider 104 via the slot 118 and/or the cavity 120, respectively. To facilitate installation of the window covering wire in the slider 104, the side surface 104D may also be provided with a channel 126 in communication with the cavity 120, and the side surface 104C may also be provided with a channel 128 in communication with the slot 118. In addition, the slider 104 may be provided with two through

holes

122, 124 for passing through the

side surfaces

104C, 104D, respectively. When the slider 104 is assembled with the housing 102, the

side surfaces

104A, 104B of the slider 104 may correspond to the

side surfaces

102A, 102B of the housing 102, respectively, the

side surfaces

104C, 104D of the slider 104 may correspond to the

side surfaces

102C, 102D of the housing 102, respectively, and the slot 118, the cavity 120, and the two

openings

108, 110 are arranged along the longitudinal axis Y.

To facilitate defining the travel of the slider 104 relative to the housing 102,

spaced stops

134A, 134B may be provided within the housing 102. The stop 134A is, for example, a bump disposed in the housing 102, and the stop 134B is, for example, an edge of the opening 130 of the housing 102. When the slider 104 abuts against the stop portion 134A, the slider 104 is prevented from sliding in one direction, which is the first end point of the stroke of the slider 104, and when the slider 104 abuts against the stop portion 134B, the slider 104 is prevented from sliding in the other direction, which is the second end point of the stroke of the slider 104. According to an embodiment, the sliding member 104 has spaced

flanges

132A, 132B, for example, the flange 132A of the sliding member 104 abuts against the stop portion 134A of the housing 102 to stop the sliding member 104 at a first end of its travel, and the flange 132B of the sliding member 104 abuts against the stop portion 134B of the housing 102 to stop the sliding member 104 at a second end of its travel.

The spring 106 is disposed in the housing 102 and is connected to the slider 104 and the housing 102, respectively. The spring force of the spring 106 may urge the slider 104 to slide along the longitudinal axis Y relative to the housing 102 such that the slider 104 extends out of the opening 130 of the housing 102.

The slider 104 is slidable relative to the housing 102 between a first position and a second position between the

side surfaces

102A, 102B, 102C, 102D of the housing 102: fig. 1 to 4 show the sliding member 104 in the first position, and fig. 7 and 8 show the sliding member 104 in the second position. Referring to fig. 1 to 4, when the sliding member 104 is in the first position, the through holes 122 of the sliding member 104 are respectively offset from the through

holes

112A and 112B of the outer shell 102, the through holes 124 of the sliding member 104 are also respectively offset from the through

holes

114A and 114B of the outer shell 102, and a portion of the through

holes

112A, 112B, 114A and 114B of the outer shell 102 can be shielded by the sliding member 104. In addition, the channel 126 of the slider 104 is also offset from the channel 116 of the housing 102, the slider 104 substantially covers the

openings

108, 110 of the housing 102, and one end of the slider 104 extends out of the opening 130 of the housing 102, leaving the slot 118 and the channel 128 of the slider 104 exposed. With the slider 104 in the first position, the window covering operating wire can be inserted into the slot 118 through the channel 128 with the channel 128 and slot 118 exposed. In addition, the slider 104 substantially conceals the

openings

108, 110 of the housing 102 and the channel 116 when in the first position, and prevents the window covering wires from being inserted into the

openings

108, 110 of the housing 102 and the inner cavity 120 of the slider 104 via the

channels

116, 126. The spring force of the spring 106 may urge the slider 104 to slide toward the first position. According to one embodiment, the flange 132A of the slider 104 contacts the stop 134A of the housing 102 to force the slider 104 to stop at the first position.

Referring to fig. 7 and 8, when slider 104 is in the second position, apertures 122 of slider 104

overlap apertures

112A and 112B of housing 102, respectively, and apertures 124 of slider 104 also

overlap apertures

114A and 114B of housing 102, respectively. In addition, the inner cavity 120 of the slider 104 and the

openings

108, 110 of the housing 102 generally overlap, the channel 126 of the slider 104 and the channel 116 of the housing 102 also overlap, and the slot 118 and the channel 128 of the slider 104 are retracted toward the inside of the housing 102. When the slider 104 is in the second position, the curtain operating wires can be inserted into the

openings

108, 110 of the housing 102 and the inner cavity 120 of the slider 104 via the

channels

116, 126, and the installed curtain operating wires can slide smoothly through the two

openings

108, 110 of the housing 102 and the inner cavity 120 of the slider 104.

The limiter 100 may be used with a window covering and may have different states of use to limit the operating line of the window covering. Fig. 9 to 12 show a state in which the stopper 100 is combined with the window covering 200 in use. Referring to fig. 9-12, a window covering 200, for example, has a head rail 202, a shade element 204, and a vertically extending operating wire 206. Operating wire 206 is exposed and may be used to actuate the shade assembly 204 relative to the head rail 202. For example, the user may pull the operating wire 206 to move the shielding assembly 204 up and down. The manipulation wire 206 may be a string or a bead chain. According to one embodiment, the operation line 206 may also be a closed loop operation line.

The limiter 100 may further comprise one or more fasteners 140 in the use state shown in fig. 9-12, wherein the fasteners 140 are, for example, screws. To set the stopper 100 to the use state shown in fig. 9 to 12, the user may first press the slider 104, so that the slider 104 slides to the second position against the elastic force of the spring 106. According to one embodiment, the flange 132B of the slider 104 contacts the stop 134B of the housing 102 to force the slider 104 to stop at the second position. With the sled 104 maintained in the second position, the operating wire 206 is inserted through the

channels

116, 126 into the

openings

108, 110 of the housing 102 and the inner cavity 120 of the sled 104, and the restraint 100 is secured to a securing surface 210 using the fastener 140, wherein the securing surface 210 is, for example, a wall or other securing surface in a room. More specifically, one fastener 140 may pass through the aperture 122 of the slider 104 and the

apertures

112A, 112B of the housing 102 and lock onto the fixed surface 210, and the other fastener 140 may pass through the aperture 124 of the slider 104 and the

apertures

114A, 114B of the housing 102 and lock onto the fixed surface 210, thereby securing the restraint 100 onto the fixed surface 210 and locking the slider 104 in the second position. The limiter 100 may thus be fully installed in the use configuration shown in fig. 9-12, wherein the operating wire 206 extends through the inner cavity 120 of the slider 104 and the

openings

108, 110 of the housing 102, but the operating wire 206 does not pass through the slot 118 of the slider 104. Since the limiter 100 is capable of limiting the operating wire 206 to be close to the fixing surface 210, the operating wire 206 is prevented from swinging arbitrarily, and the risk of a child being wrapped by the operating wire 206 is avoided. However, the limiter 100 still allows the operation wire 206 to move up and down through the limiter 100 without interfering with the operation of the operation wire 206.

According to one embodiment, the limiter 100 may have a side surface 102D that abuts the fixed surface 210 when locked to the fixed surface 210 such that the channel 116 of the housing 102 and the channel 126 of the slider 104 are blocked by the fixed surface 210, thereby preventing the operating wire 206 from exiting the limiter 100.

Fig. 13 and 14 illustrate another use of the restraint 100 in combination with the window covering 200. Referring to fig. 13 and 14, to set the limiter 100 in another use state, the slider 104 is moved to the first position by the elastic force of the spring 106 (as shown in fig. 5 and 6) and extends out of the opening 130 of the housing 102, such that the slot 118 and the channel 128 of the slider 104 are exposed. With the slider 104 maintained in the first position, the operating wire 206 is inserted into the slot 118 of the slider 104 via the channel 128, the operating wire 206 extends through the slot 118, and the limiter 100 is able to hang from the operating wire 206. The slider 104 can then be depressed to a third position between the first and second positions, such that the slot 118 of the slider 104 is partially exposed and the inner cavity 120 of the slider 104 partially overlaps the two

openings

108, 110 of the housing 102. With the slider 104 maintained in the third position, a portion of the wire 206 between the head rail 202 and the restrictor 100 is bent and inserted through the slot 118, the lumen 120, and the two

openings

108, 110. The spring 106 of the restraint 100 (shown in fig. 5 and 6) may then urge the slider 104 to displace toward the first position and clamp the operating wire 206 between the housing 102 and the slider 104, as shown in fig. 14. In the use state of the restraint 100 shown in fig. 14, to allow the wire 206 to pass through the slot 118, the lumen 120, and the two

openings

108, 110 simultaneously, the bent sections of the wire 206 are sandwiched between the housing 102 and the slider 104, and portions of the wire 206 form a closed loop between the slot 118 and the

openings

108, 110 of the restraint 100. The restraint 100 may be suspended from the operating wire 206 when in this use state and the length of the operating wire 206 between the head rail 202 and the restraint 100 is shortened. Thus, the hanging length of the operating wire 206 suspended from the head rail 202 can be shortened, limiting the operating wire 206 to a height that is inaccessible to children, thereby avoiding the risk of the operating wire 206 wrapping around the neck of a child. According to the bending length of the operating wire 206, the user can adjust the hanging length of the operating wire 206 suspended by the head rail 202, and the use is very convenient.

The limiter of the curtain has a simple structure and a plurality of using states, so that the risk that the curtain operating line is wound around the neck of a child is avoided.

The foregoing describes a number of different embodiments in accordance with the present invention, in which the various features may be implemented in single or in various combinations. Therefore, the embodiments of the present invention are disclosed as illustrative embodiments of the principles of the present invention and should not be construed as limiting the invention to the disclosed embodiments. Furthermore, the foregoing description and accompanying drawings are only exemplary of the invention and are not intended to be limiting thereof. Variations or combinations of the other elements are possible without departing from the spirit and scope of the invention.

Description of the reference numerals

100 limiter 102 housing

102A-102D side surface 104 slider

104A-104D side surface 106 spring

108. 110

openings

112A, 112B, 114A, 114B

116 channel 118 slotted

120

lumen

122, 124 are perforated

126. 128 channel 130 opening

132A, 132B

flanges

134A, 134B stops

140 fastener

200 curtain 202 head rail

204 shield assembly 206 operating wire

210 fixed surface Y longitudinal axis

Claims

1. A limiter for a window covering operating cord, comprising: the shell is provided with an opening, and a first channel communicated with the opening is arranged on one side surface of the shell; a sliding part, which is provided with an inner cavity and a slot, wherein one side surface of the sliding part is provided with a second channel communicated with the inner cavity, and the sliding part is assembled with the shell in a sliding way, so that the sliding part can slide between a first position and a second position, wherein: the sliding piece shields the opening and exposes the open slot when in the first position so as to facilitate the insertion of the curtain operating line into the open slot, and the first channel and the second channel are staggered when in the first position so as to prevent the curtain operating line from being inserted into the opening through the first channel; when the sliding piece is at the second position, the slot retracts towards the inner side of the shell, the inner cavity is overlapped with the opening, the first channel is approximately overlapped with the second channel, so that a curtain operating line can be inserted into the inner cavity and the opening through the first channel and the second channel, and the curtain operating line can slide through the shell and the sliding piece through the opening and the inner cavity; and a spring, connect with the sliding part and the outer cover separately, the spring can impel the sliding part to slip towards the first position.

2. The restrictor of claim 1, wherein the slider has the slot partially exposed and partially overlapping the cavity and the opening in a third position between the first position and the second position to allow a curtain operating wire to pass through the slot, the cavity, and the opening, respectively, simultaneously.

3. The limiter of claim 1 wherein a side surface of the slider is further provided with a third channel in communication with the slot, the third channel being exposed in the first position to facilitate insertion of a window shade operating wire through the third channel into the slot.

4. The restrictor of claim 1, wherein the slider is slidable relative to the housing along a longitudinal axis along which the lumen, the slot and the opening are disposed.

5. The restrictor of claim 1, wherein the housing further defines a first aperture, the slider further defines a second aperture, and the restrictor further comprises a fastener that passes through the first aperture and the second aperture when in the second position to lock the slider in the second position.

6. The restrictor of claim 5, wherein the first and second perforations are staggered in a first position.

7. The restrictor of claim 5, wherein the fastener is a screw.

8. A window covering, comprising: the operating wire is used for driving the shielding component to move; and the restrictor of any of claims 1-7, wherein the operating wire extends through the restrictor.

9. The window covering of claim 8, wherein the operating wire passes through the slot, the cavity, and the opening, respectively, and is sandwiched between the housing and the slider, the operating wire forming a closed loop between the slot and the opening.

10. The window covering of claim 9, wherein the wire is bent and the bent segments of the wire are sandwiched between the housing and the slider.

11. The window covering of claim 8, wherein the operating wire passes through the cavity and the opening, respectively, but not through the slot.

12. The window covering of claim 11, wherein the slider is locked in the second position.

13. The window covering of claim 8, wherein the operating cord is a cord or bead.