JPS58189486A - Headbox of blind - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD This invention relates to a blind headbox.

SUMMARY OF THE INVENTION An object of the present invention is to provide a head box of a blind in which it is easy to assemble a slat angle adjusting device housed in the head box of the blind.

EXAMPLE Below, an example embodying this invention is shown in FIGS. 1 to 17.
To explain according to the diagram, this blind B has a large number of slats S supported by two ladder cords L as shown in FIG. It is supported by an adjustment device M.

As shown in FIG. 14, each slat S is formed to have a substantially arc-shaped cross section, and three creases Sa are formed in the longitudinal direction to increase rigidity. This is designed to prevent S from deflecting.

The detailed structure of this slat angle adjustment device M, the head box 3, and the mounting structure of the slat angle adjustment device will be explained.

Reference numeral 1.2 denotes a support member having an inverted cross-section and a lid member having an inverted cross-section, which constitute the head box 3 having a rectangular cross-section. The cylindrical fitting protrusion 4 formed on the upper side lower surface side edge of the lid member 2 can be fitted into the concave fitting groove 5a in the engaging protrusion 5 having a substantially cylindrical cross section. It is. Further, a fitting groove 7 formed in a channel shape inward along the longitudinal direction of the lower part of the lid part 2 is provided in a fitting protrusion 6 formed to protrude downward along the longitudinal direction on the other side edge of the bottom surface 1a of the support part 2. can be fitted.

Reference numeral 8 denotes a plug made of synthetic resin that is fitted into both ends of the head box 3, and includes an insertion portion 9 that is inserted while being pressed against the inner surface of the end portion of the head box 3, and a plug provided at the base end of the insertion portion 9 that connects the head. Flange 10 locked to the end of box 3
It consists of

In addition, on both sides of the upper part of the insertion part 9, there are engaging recesses 11 that engage with the inner circumferential surface of the engaging protrusion 5 of the lid member 2, as shown in FIG. 13(a).
is formed. In addition, a locking tongue piece 1 is provided at the lower part of the insertion portion 9.
2 is formed, and a locking protrusion 13 formed on the lower surface of the tip thereof.
is engaged with an engagement hole 14 transparently provided in the bottom surface 1a of the support section 1, thereby preventing the stopper 8 from detaching from the head box 3.

Reference numeral 15 shown in FIGS. 6 and 11 denotes a pair of mounting grooves cut into the side of the bottom surface 1a of the support section 1 at the mounting position of the slat angle adjustment device M, and tapered guides 15a are provided on both sides of the opening. is formed.

Reference numeral 16 denotes a box-shaped support member that is engaged with one of the mounting grooves 15 so as to be accommodated in the head box 3, and is made of synthetic resin. As shown in FIG. 5, a track-shaped attachment part 17 is formed protrudingly on the lower surface of the bottom of the support member 16, and an engagement groove 18 is recessed in the outer periphery of the attachment part 11. It is attached by inserting the engagement groove 18 into the bottom part 1a from the bottom part.

Reference numeral 19 denotes a track-shaped insertion hole transparently provided at the bottom of the support member 16 at an inner position of the mounting portion 17, and a slit 20 cut into the side wall of the support member 16 corresponding to the opening side of the mounting groove 15. It communicates with the outside through the slit 20, and allows the ratter cord L and a blind lift string 47 (described later) to be introduced into the insertion hole 19 from the outside of the side through the slit 20.

Reference numeral 21 indicates a supporting member 160 on both side walls 16a so as to be located at a slightly oblique upper part of the insertion hole 19 (obliquely upper right in FIG. 2).
, 16b, the shaft 21a of which is releasably connected to a bearing groove 22 formed from the upper side walls 16a, 16b of the support member 16. inserted and supported at its lower end.

Reference numeral 23 denotes a pair of protrusions that protrude outward from one end (the right end in FIGS. 2 and 3) of the support member 16 at a distance from each other, and a connecting part 23a is connected between the tips of the protrusions 23. connected via.

Reference numeral 24 denotes a kite roller for the blind lift string 47, which is rotatably disposed between the protrusions 23 so as to be located slightly above the guide roller 21.
In particular, as shown in FIG.
It is removably attached between the drop-off prevention part 26, which has a width slightly narrower than the diameter of the bearing groove 4a, and the upper end of the bearing groove 25.

Reference numeral 27 indicates a pair of bifurcated bearing portions projecting upward from both ends of the support member 16, and reference numeral 28 indicates a through hole provided in both end walls of the support member below the bearing portion 27.
It communicates with the outside through a slit 29 cut into the lower end of the support member 16, and allows the lifting cord 47 to be guided from above the support member 16 through the slit 29 into the through hole 28.

Note that reference numeral 27a denotes a locking portion that protrudes slightly inward at the upper portions of both sides of the bearing portion 27, and is a locking portion 27a of the support shaft 31, which will be described later.
It is now impossible to escape from the situation easily.

A guide rod 30 is bridged between both end walls of the support member 16 at a slight distance from the side wall 16a on the opposite side to the slit 20, and is positioned slightly above the guide roller 21.

31 is a support shaft for tilt adjustment of the ladder cord L rotatably supported between the bearing portions 27 of the support member 16,
It is molded from synthetic resin, and has a hexagonal engagement hole 32 penetrated through its center.

Note that when the support shaft 31 is moved upward from the bearing portion 27, it engages with the locking portion 27a, but a force exceeding a predetermined level is applied to the locking portion 27a.
When applied to a, the space between the locking parts 278 expands due to its elasticity,
The support shaft 31 can be removed.

33 is a metal sleeve wrapped around one end of the support shaft 31 (the right end in FIG. 2), and a claw 34 is cut out on the outer periphery as shown in FIG. Then, the upper end of the ladder coat L is engaged with this claw 34, and the claw 34
is crimped onto the support shaft 31 side.

Reference numeral 35 denotes a drum integrally formed in the center of the support shaft 31, on which the center of the slat angle adjustment string 36 is wound and fixed as shown in FIG. The head box 3 is inserted into the head box 3 through the insertion hole 19 of the support member 16.
It is hanging downward.

Then, by pulling either end of the adjustment string 36, the drum 35 is rotated clockwise or counterclockwise, and the slat S is rotated through the ladder coat L attached to the support shaft 31.
The inclination angle can be adjusted as desired.

Reference numeral 37 shown in FIG. 2 is a drive shaft whose one end is fitted into the engagement hole 32 of the support shaft 31, and when it is fitted to the outer periphery of the left end of the support shaft 31, both the puffer 38 and the support shaft 31 can be viewed from the outer periphery. A set screw 39 is screwed into the support shaft 31 to prevent it from being removed from the support shaft 31.

Reference numeral 40 shown in FIGS. 7 to 10 is a box-shaped support member that is engaged with the other mounting groove 15 so as to be accommodated in the head hook 3, and is made of synthetic resin. This support member 40 includes the protrusion 23 of the structure of the support member 16.
, connecting portion 23a, kite roller 24, and guide rod 30
Since the configuration is omitted, the other configurations are designated by the same reference numerals and their explanations will be omitted.

Reference numeral 41 denotes a support shaft rotatably supported between the bearing portions 27 of the support member 40, which is made of synthetic resin, and has a hexagonal engagement hole 42 in the center thereof. The other end is fitted.

Like the support shaft 31, the support shaft 41 also separates upward from the locking portion 27a of the bearing portion 27 when a force exceeding a predetermined value is applied upward.

43 is a metal sleeve wrapped around the outer periphery of the support shaft 41, and has a claw (not shown (, >) on the outer periphery, and the upper end of the ladder coat L is engaged with the claw (not shown). (L) is pressed onto the support shaft 41 side.

The support member 16.40, the support shaft 31, 4L drive shaft 37
A slat angle adjusting device M is constructed by the above.

As shown in FIG. 1, reference numeral 44 denotes a lifting cord locking device provided in a mounting hole 45 transparently provided at the abutting portion of the bottom portion 1a and the side wall 1b at the right end of the support frame 1, (not shown) and Chi1-Roller (not shown)
It is composed of a locking roller that cooperates with the locking roller to clamp a lifting string 4γ, which will be described later.

47 is a pair of lifting strings for lifting and lowering the slat S, one end of which is connected to the kite roller (of the lifting string locking device 44).
(not shown) and the locking roller 46 through the attachment hole 45 and suspended below the head box 3.

The other end of the lifting string 47 is suspended below the guide roller 24 of the support member 16 through the through hole 28 and the kite roller 21 through the insertion hole 19, and passes through each slat S to the bottom rail 48. is connected to one end of the The other end of the other lifting cord 47 is inserted into each through hole 28 of the support member 16, and is suspended downward through the kite roller 21 and the insertion hole 19 of the support member 40, and is connected to each slat. It passes through S and is connected to the other end of the photo rail 4B.

A method of assembling the head box 3 and slat angle adjustment device M configured as described above will be explained.

6 and 11, with the support member 1 and the lid member 2 removed, insert the engagement groove 18 of each support member 16, 40 into the mounting groove 15 from the opening side of the support member 1. Push in the width direction to engage the bottom portion 1a. At this time, each support member 1 is adjusted so that the slit 20 corresponds to the opening of the mounting groove 15.
6.40, each slit S was attached to the lifting cord 47 and the ratter cord L, which had one end attached to the bottom rail 4B in advance, and one end of the ratter cord I was placed on both ends of the drive shaft 31. Sleeve 3 of support shaft 31.41
3. Keep it attached to 43.

The upper part of the ratchet cord 1 L attached to this support shaft 31.41 and the lifting cord 41 at the corresponding position are connected to the slit 2
0 into the insertion hole 19 of the support member 16.40.

Then, connect the lifting cord 47 on the support member 40 side to the support member 40.
It is inserted into each of the through holes 28 through the slit 2o on the right end side (see FIG. 7) and the slits 2o on both ends of the support member (see FIG. 2), and is made to slip below the guide roller 24 of the support member 16.

Also, insert the lifting cord 47 on the support member 16 side into the through hole 28 through the slit 2o on the right end side of the support member 16 (see FIG. 2), and let it slide below the chi 1 to roller 24 of the support member 16 The end of the lift string 47 on the support member 40 side is suspended below the support frame 1 as shown in FIG.

After inserting the lifting cord 47 into the through hole 2B of each support member 16.40 as described above, the support shaft 31 and the support shaft 41 are engaged with the bearing portions 27 at both ends of the support member 16.40 from above. 2.See Figure 7). In addition, during this engagement, if the support shaft 31.41 is once locked with the locking part 27H on the upper part of the bearing part 27, or if a force above a certain level is applied, the space between the locking parts 278 is expanded due to its elasticity. Therefore, it is supported by a bearing portion 27. Further, the support shafts 31 and 41 are engaged with the bearing portion 27.
After that, the space between the locking parts 27a returns to its original state due to its own elasticity.
This prevents the support 11411131.41 from detaching from the bearing portion 27.

Thereafter, both ends of the adjustment string 36 wound around the l'crumb 5 are inserted through the guide rod 30 of the support member 16, the side wall 16 and the span, and into the insertion hole 19, and are suspended below the support member 1 (see FIG.
(See Figures 3 and 4).

Then, the fitting groove 7 and the fitting groove 5+1 of the lid member 2 are fitted into the fitting protrusion 6 and the fitting protrusion 4 of the support member 1 from one end side, respectively (see Figs. 4 and 9). .

After this, the plug body 8 is inserted into both ends of the head hook 730 by engaging its engagement recess 11 with the engagement protrusion 5 from /L,
The locking protrusion 13 of the locking tongue piece 12 is inserted into the engagement hole 14 of the supporting profile 1.
(See Figures 1 and 13).

Therefore, since the plug body 8 is locked in the engagement hole 14, it is prevented from coming off from the head box 3.

In the head hook 3 as described above, the mounting groove 15 is inserted from the side opposite to the side wall 11J on the bottom surface 1a of the support member 1.
Since the slat angle adjusting device M is formed in the form of a groove, the slat angle adjusting device M can be easily attached with a single touch by simply inserting the supporting member 16.40 of the slat angle adjusting device M in the width direction of the supporting profile 1 through the opening thereof. Furthermore, since the upper and negative sides of the support section 1 are open, the slat angle adjustment device M can be assembled very efficiently.

After assembling the slat angle adjustment device M as described above, the lid section 2 is fitted onto the support section 1 from the end.
The support member 16.40 does not come out of the mounting groove 15 and can be securely mounted.

It should be noted that the present invention is not limited to the embodiments described above, and may be modified as desired without departing from the spirit of the invention.

Effects As detailed above, in the present invention, a mounting groove is cut from the side opposite to the side wall into the bottom surface of the supporting frame formed by the bottom surface and the side wall, and a mounting groove is formed from the opening of the mounting groove. By fitting an auxiliary section with an inverted cross-section to the support section so as to accommodate a support member such as a slat angle adjustment device that is inserted and attached, the head's
The assembly of the slat angle adjustment device housed in the hook is an excellent invention that can be easily performed and has excellent effects for industrial use.

[Brief explanation of drawings]

1 to 17 show an embodiment embodying the present invention, FIG. 1 is an overall perspective view, and FIGS. 2 to 4 are front sectional views showing how ten thousand support members are attached. , a plan view and a cross-sectional view, FIG. 5 is a bottom view of the support member, FIG. 6 is a perspective view of the support member, and FIGS. 7 to 9 are front cross-sections showing the installation state of the other support member. 10 and 14 are enlarged sectional views of the slats, and FIGS. 15 to 17 are front views, sectional views, and side views of the support shaft. Supporting section 1, bottom surface 1a, side wall 1b, lid section 2, head box 3, mounting groove 15, supporting member 16°40, mounting section 1
7. Engagement groove 1B, slat angle adjustment device M0 Patent applicant: Tachikawa Blind Industry Co., Ltd.
Person Patent Attorney On 1) Hironobu Figure 15 Figure 16

Claims (1)

[Claims] l The angle of the slat that is attached by cutting a mounting groove from the side opposite to the side wall into the bottom face of the supporting frame formed by the bottom face and side wall and inserting it from the opening of the mounting groove. 1. A head box for a blind, characterized in that an auxiliary section having an inverted cross section is fitted to the support section so as to face each other so as to accommodate a support member such as an adjustment device.