TWI585290B - Curtains of the curtains - Google Patents

Description

Cord pull buckle

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a buckle, and more particularly to a detachable drawstring buckle attached to a curtain between a drop end of the cord and the drawstring.

Referring to Figures 1 and 2, there is a novel patent No. M289172, which discloses a connecting device 1 which is detachably connected between a pull cord 11 and a connecting member 12 for the purpose of preventing The drawstring 11 is in danger of causing a neck around when the child is playing. The connecting device 1 comprises a fastening seat 13, a fixing seat 14 connected between the connecting member 12 and the fastening seat 13, and a cord end for the cord 11 being mounted and separable and the buckle The connecting seat 15 of the seat 13 is fastened.

The fastening seat 13 has a ring wall 132 defining an engaging passage 131. The ring wall 132 has two adjacent downwardly and radially extending coupling holes 133 and two slits 134 extending downward from the top edge. And two arc hooks 135 respectively located between the slots 134, each of the arc hooks 135 has a latching edge 136 protruding toward the engaging passage 131, and the engaging passage 131 is along the pull One length direction 10 of the cord 11 extends. The fixing seat 14 is pivotally mounted between the coupling holes 133 of the fastening seat 13 The socket 15 has a pull cord mounting hole 151 extending along the longitudinal direction 10 and fixed to the cord end of the pull cord 11, and two convex portions 152 projecting to the radially outer end and spaced apart from each other, the convex portion 152 The card can be snapped under the latching edge 136 of the arcing hooks 135 of the latching seat 13.

When the connecting device 1 is in a connected position, one of the convex portions 152 of the connecting seat 15 is caught under the latching flange 136 of the arcing hooks 135. When the pull cord 11 is pulled by an external force and the connecting device 1 is switched to a disengaged position, the convex portions 152 of the connecting seat 15 are removed from the engaging passage 131 of the engaging seat 13 at this time. The connecting seat 15 assembled by the rope end of the drawstring 11 is separated from the snap seat 13, thereby preventing the drawstring 11 from being thrown by a child when it is played.

Although the foregoing novel patent can improve the safety of the curtain having the drawstring 11 in use, the connecting device 1 is mainly elasticized by the arc hooks 135 having elasticity on the buckle seat 13 when in use. The convex portions 152 of the connecting seat 15 are engaged, that is, the arc hooks 135 themselves have elasticity which expands toward the radially outer end. Therefore, when the connecting device 1 is often pulled by an external force, causing the fastening seat 13 and the connecting seat 15 to be separated, the arcing hooks 135 of the fastening seat 13 may be deformed and elastically fatigued. When the arc hooks 135 of 13 are unable to maintain a good engaging force, since the engaging passages 131 for engaging the connecting seats 15 extend along the longitudinal direction 10 of the pulling rope 11, the connecting seat 15 and the Since the snap-fit seat 13 cannot be firmly engaged, the aforementioned novel patent cannot maintain a good and long-lasting bonding force.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drawstring buckle having a curtain having a better and lasting bond strength while improving the safety of use of the curtain.

The drawstring buckle of the present invention can detachably connect a pull cord and a connecting piece, the drawstring extends along a length direction, and the drawstring buckle comprises a fixing seat coupled with the connecting component, and a Drawstring combined connector. The mount includes a cohesion wall defining a cleat slot and a snap wall defining an engagement slot. The engagement groove extends along the length direction, and the engagement groove is disposed to intersect with the engagement groove. Further, the yoke groove has a merging opening disposed opposite to the connecting member, and the engaging groove has a snap opening disposed opposite to the connecting member. The connecting base includes a detachable abutting portion mounted in the retaining groove of the fixing seat, and a detachable engaging portion fastened in the engaging groove of the fixing seat. When the drawstring is pulled away from a loosening direction of the connecting member, the engaging portion and the engaging portion of the connecting seat are sequentially separated from the engaging groove of the fixing seat and the engaging groove.

The utility model has the beneficial effects that the bridging groove and the engaging groove which are arranged in a crosswise manner are used for clamping the connecting seat, so that the effect of maintaining a better and lasting bonding force can be achieved under the premise of improving the safety of the curtain.

2‧‧‧ Curtain

20‧‧‧ Length direction

21‧‧‧ Cord

211‧‧‧Down

22‧‧‧Drawstring

221‧‧‧ rope end

23‧‧‧Connecting parts

24‧‧‧ Loose direction

3‧‧‧ Fixed seat

31‧‧‧Blocking groove

311‧‧‧Slots

312‧‧‧With opening

32‧‧‧Bang wall

321‧‧‧抱合部

33‧‧‧ snap groove

331‧‧‧ snap opening

34‧‧‧Card wall

35‧‧‧Bound wall

4‧‧‧Connecting seat

41‧‧‧抱合部

411‧‧‧Budget

412‧‧‧ long axis

413‧‧‧ Short axis

414‧‧‧Bottom wall section

415‧‧‧ top arc

416‧‧‧ horn section

42‧‧‧Clock Department

43‧‧‧Blue cord mounting hole

W1‧‧‧ cohesion width

W2‧‧‧ height

W3‧‧‧ snap width

W4‧‧‧ engagement height

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an exploded perspective view of one of the novel patents No. M289172; FIG. 2 is a novel patent of FIG. a schematic cross-sectional view; 3 is an exploded perspective view of a first embodiment of the drawstring buckle of the present invention; FIG. 4 is a reference view of the use state of the first embodiment, illustrating the relative relationship between the drawstring buckle and a curtain; 5 is a side exploded view of the first embodiment; FIG. 6 is a top exploded view of the first embodiment; FIG. 7 is a side cross-sectional view of the first embodiment, the drawstring buckle Figure 8 is a view similar to Figure 7, in which the drawstring snaps in a position to be separated; Figure 9 is an exploded perspective view of a second embodiment of the drawstring buckle of the present invention And FIG. 10 is a view similar to FIG. 8 illustrating the second embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 3, 4 and 5, a first embodiment of the drawstring buckle of the present invention is two sets of symmetrical mounting on the left and right sides of a curtain 2, the curtain 2 comprising a curtain 21, and two a pull cord 22 for retracting the cord 21, the cord 21 having a lower end 211 adjacent to the lower side, and the curtain 2 further comprising two left and right spacers mounted on the hanging end 211 of the cord 21 and A connecting member 23 (only one of which is shown in Fig. 3) corresponding to the straight line of the pull cords 22, the pull cords 22 all extending along a length direction 20, and each having a cord end 221 adjacent to the connecting member 23, and the connection The member 23 may be a belt structure as shown in the embodiment, or may be other similar structures. This embodiment of the drawstring The buckle comprises: a fixing base 3 combined with the connecting member 23, and a connecting seat 4 for fixing the rope end 221 of the pulling cord 22, the connecting seat 4 being detachably coupled to the fixing base 3.

Referring to Figures 3, 5, and 6, in the present embodiment, the fixing base 3 includes a converging wall 32 defining an engaging groove 31, an engaging wall 34 defining an engaging groove 33, and a converging wall 32. The curtain wall 21 protrudes in a direction and is provided with a coupling wall 35 to which the connecting member 23 is mounted. The holding groove 31 and the engaging groove 33 are vertically intersected. The accommodating wall 32 has two occluded portions 321 on the opposite side of the engaging wall 34 and having a C-shaped cross section, and the accommodating groove 31 is substantially perpendicular to the longitudinal direction 20 and has two positions in the engaging portion. a groove portion 311 on the opposite side of the groove 33, each of the groove portions 311 has a converging opening 312 disposed opposite to the coupling wall 35. Preferably, the coercing width W1 of the cooperating opening 312 is slightly smaller than that of the abutment groove 31. Cohesion height W2.

The engaging wall 34 also has a C-shaped cross section between the abutting portions 321 of the abutting wall 32. The engaging groove 33 is disposed substantially along the longitudinal direction 20 and has an engaging opening 331 disposed opposite to the connecting wall 35. The engaging width W3 of the engaging opening 331 is slightly smaller than the engaging groove 33. The engagement height is W4. In this embodiment, the coupling wall 35 has a U-shaped structure, and the connecting member 23 can be passed through and fixed. However, in the implementation, the structure of the bonding wall 35 is not particularly limited as long as the connecting member 23 can be assembled.

In this embodiment, the connecting base 4 is a T-shaped tubular structure and includes a hull 41 opposite to the longitudinal direction 20, one along the An engaging portion 42 extending in the longitudinal direction 20 and a drawstring mounting hole 43 provided along the longitudinal direction 20 and extending through the engaging portion 41 and the engaging portion 42. The engaging portion 41 has two fastening rods 411 respectively corresponding to the groove portions 311 of the fixing base 3. Preferably, the fastening rods 411 have an elliptical cross section, so each of the fastening rods 411 has a long axis. 412 and a short axis 413, the length of the long axis 412 is slightly larger than the cohesion width W1 of the groove portions 311. The engaging portion 42 is a hollow cylinder and can be fastened in the engaging groove 33 of the fixing base 3. Preferably, the outer diameter of the engaging portion 42 is slightly larger than the engaging groove 33. The engagement width 341 of the engagement opening 331 is wide.

Referring to FIG. 3, FIG. 4, FIG. 7, FIG. 3, in the embodiment, the buckles 411 of the connector 4 are respectively buckled on the fixing base 3 when the cable is fastened in a connecting position as shown in FIG. The engaging portion 42 of the connecting seat 4 is buckled in the engaging groove 33 of the fixing base 3, because the long axis 412 of the fastening rod 411 is slightly larger than the groove portion 311 of the fixing groove The cohesion width W1 of the accommodating opening 312 of the groove portion 311, and the outer diameter of the engaging portion 42 is slightly larger than the engaging width W3 of the engaging opening 331 of the engaging groove 33, so that the connecting seat 4 can be firmly The fixing bases 3 are combined. At this time, the long axes 412 of the fastening rods 411 are substantially parallel to the longitudinal direction 20 of the control rope 22. When the drawstrings 22 of the curtain 2 are pulled up along the length direction 20, the cord end 221 of the pull cord 22 can pull the joint 4 up, due to the joint 4 and the mount 3 is engaged with each other. Therefore, when the pull cords 22 are pulled upward, the fixed seat 3 and the connecting seat 4 are combined by the manner of cohesion and engagement, so that the two are engaged. The time is quite stable, and the connecting seat 4 has the aforementioned fastening rod 411 and the abutting portion 321 of the fixing base 3 In the way of moving up, it will not be separated, and the force can be evenly dispersed.

When the child plays the drawstrings 22 of the curtain 2 and the drawstrings 22 are pulled toward a release direction 24 away from the cord 21, the connector 4 for assembly of the cord ends 221 of the drawstrings 22 The engaging portion 42 is rotated with the abutting portion 41 as a fulcrum, that is, the engaging portion 42 will be disengaged from the engaging groove 33 of the fixing base 3 first, and gradually changed from the connecting position of FIG. 7 to the connecting position of FIG. One is about to be separated. The fasteners 411 of the abutting portion 41 in the rotation are elliptical in cross section. Therefore, during the rotation, the short shafts 413 having a small length respectively correspond to the abutment grooves 31 of the fixing base 3. The converging openings 312 of the equal groove portions 311 finally smoothly exit the cohesion grooves 31. When the connecting seat 4 is separated from the fixing base 3, the drawstrings 22 are not wrapped around the neck of the child, thereby achieving the purpose of improving the safety of the use of the curtain 2.

For the same reason, in the embodiment, when the connecting seat 4 and the fixing base 3 are combined, the fasteners 411 of the connecting seat 4 are inserted into the groove portions 311 of the holding groove 31 of the fixing base 3, and then When the engaging portion 42 of the connecting seat 4 is engaged with the engaging groove 33 of the fixing base 3, the pulling buckle is switched to the same as shown in FIG. The connection location.

Referring to Figures 9 and 10, a second embodiment of the drawstring buckle of the present invention has a structure similar to that of the first embodiment, comprising a fixed base 3 and a connecting base 4, the fixed seat 3 and the second embodiment An embodiment is different in that the joint wall 35 is a hook-like structure, and the joint wall 35 can be snapped onto a connecting piece 23 below the curtain 21 of the curtain 2, The connecting member 23 of this embodiment is in the form of a bottom bar. The connecting seat 4 also includes a merging portion 41 having a structure similar to that of the first embodiment, and the accommodating portion 41 also has two fastening rods 411, and the fastening rods 411 The cross section is a triangular shape of the top end of the arc, that is, the buckles 411 have a slightly flat bottom wall section 414, a top arc section 415 which is curved upward, and two are respectively connected to the bottom wall section 414 and A corner section 416 between the top arc segments 415.

When the connecting base 4 is pulled by the pulling rope 22 and rotates in the releasing direction 24, one of the corner segments 416 of the fastening rods 411 respectively abuts against the fixing base 3 The inner surface of the groove portion 311 is configured to assist the connector 4 to be quickly disengaged from the holder 3.

It can be seen from the above description that the cord buckle of the present invention can not only improve the safety of the use of the curtain 2, but also the cohesion of the abutment groove 31 of the fixing base 3 when the cord is buckled in the connecting position. The opening 312 and the engaging opening 331 of the engaging groove 33 are not perpendicular to the longitudinal direction 20 of the pulling cord 33. Therefore, when the pulling cord 22 is carried by the hanging end 211 of the cord 21, the The force of the pull cord 22 is transmitted through the engagement between the fixing base 3 and the connecting seat 4, and the engaging opening 312 of the engaging groove 31 and the engaging opening 331 of the engaging groove 33 are substantially perpendicular to the The longitudinal direction 20 of the pull cord 22, therefore, the foregoing design of the present invention not only ensures the transmission of the pulling force, but also is not affected by the elastic fatigue of the engaging groove 31 and the engaging groove 33, thereby achieving a better and lasting bonding force. the goal of.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, according to the present invention. The simple equivalent changes and modifications made by the scope of the patent application and the contents of the patent specification are still within the scope of the invention.

20‧‧‧ Length direction

22‧‧‧Drawstring

221‧‧‧ rope end

23‧‧‧Connecting parts

3‧‧‧ Fixed seat

31‧‧‧Blocking groove

311‧‧‧Slots

312‧‧‧With opening

32‧‧‧Bang wall

321‧‧‧抱合部

33‧‧‧ snap groove

331‧‧‧ snap opening

34‧‧‧Card wall

35‧‧‧Bound wall

4‧‧‧Connecting seat

41‧‧‧抱合部

411‧‧‧Budget

412‧‧‧ long axis

413‧‧‧ Short axis

42‧‧‧Clock Department

43‧‧‧Blue cord mounting hole

Claims (10)

The utility model relates to a cord buckle of a curtain, which is detachably connected to a connecting piece and a pulling rope, the pulling rope extends along a length direction, and the pulling rope buckle comprises: a fixing seat, combined with the connecting piece, and The utility model comprises a reinforcing wall defining a reinforcing groove, and an engaging wall defining an engaging groove, the engaging groove extending along the length direction, the reinforcing groove intersecting the engaging groove; and the engaging groove Having at least one accommodating opening disposed opposite to the connecting member, the engaging groove having a snap opening disposed opposite to the connecting member; and a connecting seat coupled to the pull cord and including a a detaching portion disposed in the husking groove of the fixing seat, and a detachable engaging portion fastened in the engaging groove of the fixing seat; when the pulling rope is moved away from the connecting member When the latching direction is pulled, the connecting seat will rotate, and the engaging portion and the engaging portion of the connecting seat will be sequentially disengaged from the engaging groove of the fixing seat and the engaging groove. The cord buckle of the curtain of claim 1, wherein the abutment groove of the fixing seat is perpendicular to the engaging groove. The cord buckle of the curtain of claim 1, wherein the abutment groove of the fixing base has two groove portions on opposite sides of the engagement groove, and the abutment portion of the connection seat has two a fastener rod located on the opposite side of the engaging portion, the fastener rods respectively corresponding to the groove portions of the groove, and the fastener rod has an elliptical cross section. The drawstring buckle of the curtain according to claim 3, wherein the fixed seat The huddle groove is perpendicular to the engagement groove. The cord pull buckle of the curtain of claim 4, wherein each of the groove portions of the retaining groove of the fixing seat has a merging opening, each of the accommodating openings has a husking width, and the connecting seat has The buckle of the abutting portion has a long axis which is larger than the cohesion width of the abutting openings; when the cable is fastened in a connecting position, the long axis of the connecting rod of the connecting seat Extending along the length of the drawstring. The pull cord buckle of the curtain of claim 5, wherein the engaging opening of the engaging groove of the fixing seat has a snap width, and the outer diameter of the engaging portion of the connecting seat is larger than the The snap width of the snap opening. The drawstring buckle of the curtain of claim 6, wherein the drawstring has a cord end, wherein the mount further comprises a joint wall for assembling the connector, and the mount further comprises a A drawstring mounting hole for the cord end of the drawstring. The cord buckle of the curtain of claim 1, wherein the abutment groove of the fixing base has two groove portions on opposite sides of the engagement groove, and the abutment portion of the connection seat has two a fastener rod positioned on the opposite side of the engaging portion, the fastener rods respectively corresponding to the groove portions of the groove, and the cross section of the buckle rod is a triangular shape of a top end arc. The cord buckle of the curtain of claim 8, wherein the abutment groove of the fixing seat is perpendicular to the engaging groove. The pull cord buckle of the curtain according to claim 9, wherein each of the groove portions of the retaining groove of the fixing seat has a merging opening, and the buckle of the accommodating portion of the connecting seat has a bottom wall section, a top circle a top arc segment projecting from the arc, and two corner segments connected between the bottom wall segment and the top arc segment; when the drawstring is pulled in the loose direction, the pivoting of the connector One of the corner segments will abut against the slot of the mount to assist in the separation of the mount from the mount.