JPH0335026Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a slat support device for a blind in which both ends of the slat are supported by a frame.

(Prior art) Conventionally, in a framed blind in which slats are arranged in a rectangular frame, both ends of each slat are fitted into support shafts, and the support shafts are rotatable around the vertical frame of the frame. By operating a slat angle adjusting device that is supported and disposed within the same frame, the angle of each slat can be adjusted in the same phase via a support shaft. The support shafts supporting each slat are urged outward from the frame by a coil spring using the vertical frame as a fulcrum to prevent the slats from loosening.

(Problem to be solved by the invention) In the conventional frame blinds as described above, the coil spring that urges the support shaft outward from the frame uses the vertical frame of the frame as a fulcrum, so it is necessary to adjust the angle of the slat. However, when the coil spring rotates along with the support shaft, there is a problem in that noise is generated due to friction between the coil spring and the vertical frame.
In addition, to attach the support shaft to the vertical frame, insert the support shaft into the support hole provided in the vertical frame, fit the coil spring to the support shaft, and in this state support the biasing force of the coil spring at the tip of the support shaft. Since the transmission member for transmitting data to the shafts was fitted, there was also the problem that attachment of each support shaft to the vertical frame was complicated.

Structure of the invention (means for solving the problem) In order to solve the above problem, this invention supports a support shaft rotatably and movably in the axial direction on a frame, and the support shaft supports both ends of the slat. In a frame blind that supports the support shaft and urges the support shaft outward from the frame body to prevent the slat from sagging under its own weight, a first holder 13 and a second holder 14 made of synthetic resin are attached to the support shaft of the slat 4. 6 with the first holder 13 on the outside in an expandable and retractable manner,
Spring receivers 17 and 19 are provided on the first and second holders 13 and 14, and a coil spring 15 is disposed between the spring receivers 17 and 19 to bias both the holders 13 and 14 in a direction to separate them from each other, The structure is such that an engaging means is provided between the first holder 13 and the tip of the support shaft 6 to fit and fix the two immovably.

(Function) With the above means, even if the support shaft 6 is rotated in order to adjust the angle of each slat 4, both ends of the coil spring 15 are connected to the spring receivers 17 of the first and second holders 13 and 14 molded from synthetic resin. ,19
Since the coil spring 15 is in contact with the coil spring 15, noise generation due to friction between the coil spring 15 and other metal parts is prevented.
Moreover, when the support shaft 6 is inserted into the spring holder 12 assembled in advance, the two can be easily assembled and fixed.

(Embodiment) An embodiment embodying this invention will be described below with reference to the drawings. As shown in FIG. Both ends of the slats 4 are supported by support shafts described later so that the angle can be adjusted, and by operating an angle adjustment device (not shown) disposed within the vertical frame 3, the angle of each slat 4 can be adjusted in the same phase. ing.

The support structure of the slat 4 will be explained according to FIGS. 1 to 3. The support hole 5 provided in the vertical frame 3
A support shaft 6 is inserted through the support shaft so as to be rotatable and movable in the axial direction.A receiving portion 7 for supporting the slat 4 is formed inside the vertical frame 3, and a tip is provided at the center of the upper surface of the receiving portion 7. A fitting protrusion 8 is formed which is bent in the direction of the vertical frame 3. Then, the fitting protrusion 8 is inserted into the fitting hole 9 provided at the end of the slat 4.
By being fitted, both ends of the slat 4 are supported by the support shaft 6.

The outer part of the vertical frame 3 of the support shaft 6 is formed into a square bar shape, and is inserted into a bush 10 as a cushioning material molded from synthetic resin, and an angle adjustment link 11.
It is fitted into the square hole 11a of. When the angle adjustment link 11 is operated by operating the angle adjustment means of the slat, the support shaft 6 is rotated. Incidentally, the bushes 10 are molded in a state in which five bushes are connected together, as shown in FIG.

On the outside of the angle adjustment link 11, the support shaft 6 is biased outwardly from the vertical frame 3, and the slat 4
A spring holder 12 is attached to prevent loosening. The spring holder 12 consists of a first holder 13 molded from synthetic resin, a second holder 14 also molded from synthetic resin, and a coil spring 15. A square hole 16 is formed through which the support shaft 6 can be inserted. Also, the first holder 1
3 has a flange 1 as a spring holder at its tip.
7 is formed, and two recesses 18 are formed at symmetrical positions with respect to the axis from the inside of the flange 17 to the vicinity of the base end.

The second holder 14 has a square hole 20 formed in the center of a side plate 19 serving as a spring receiver, through which the support shaft 6 can be inserted. The locking pieces 21 protrude symmetrically with respect to the center of the same side plate 19, and locking protrusions 22 are formed at the tips of the locking pieces 21 so as to oppose each other. Then, the recess 18 of the first holder 13
If the locking piece 21 of the second holder 14 is fitted into the first holder 13 from the base end side at a position corresponding to 1, and the locking protrusion 22 movably engages with the recess 18, as shown in FIG. In this state, the coil spring 15 is disposed between the flange 17 of the first holder 13 and the side plate 19 of the second holder 14, and in this state, the first holder 13 and the second holder 14 are expanded and contracted. Both sides of the holder 1 are always connected by coil springs 15.
3 and 14 are urged in a direction away from each other.

A pair of split pieces 24 are formed at the tip of the support shaft 6 and are made elastic by grooves 23, and a locking recess 25 as an engagement means is provided on the outer surface near the tip of the split piece 24. There is. Further, a fitting protrusion (not shown) serving as an engagement means is formed in the square hole 16 near the tip of the first holder 13 .

Spring holder 12 configured in this way
As shown in FIG. 1, when the support shaft 6 is fitted into the square holes 16 and 20 on the outside of the angle adjustment link 11, the tip of the support shaft 6 will fit into the square hole 16 of the first holder 13. The locking recess 25 of the support shaft 6 fits into the fitting protrusion. In this state, the first holder 13 is immovably and unrotatably supported with respect to the support shaft 6, and since the side plate 19 of the second holder 14 abuts the angle adjustment link 11, the same side plate 19 is The support shaft 6 is urged in the direction of the arrow in FIG. 1 via the first holder 13 by the urging force of the coil spring 15 serving as a fulcrum. Therefore, each slat 4 is biased toward the outside of the vertical frame at both ends of the slat 4 via the support shaft 6 biased by the spring holder 12, so that the central portion of the slat 4 is prevented from sagging due to its own weight. It's becoming like that.

Now, by operating the angle adjustment means of the framed blind 1 configured as described above, the angle adjustment link 11
When actuated, the support shaft 6 is rotated and the angles of each slat 4 are adjusted in the same phase. At this time, as the support shaft 6 rotates, the first and second holders 13 and 14 are also rotated, but the coil spring 1
Since the side plate 19 of the second holder 14 is interposed between the angle adjustment link 11, which is the fulcrum of the coil spring 15, and the coil spring 15, it is possible to prevent noise caused by friction between the coil spring 15 and other metal parts. can.

In addition, in order to assemble such a slat support structure, the first holder 13, the second holder 1
4 and the coil springs 15, the support shaft 6 is inserted from the inside of the vertical frame 3 into the support hole 5, the bush 10, and the angle adjustment link 11 of the vertical frame 3. 6 into the square holes 16, 20 of the spring holder 12 from the second holder 14 side,
The fitting protrusion in the square hole 16 engages with the locking recess 25 of the support shaft 6, and the first holder 13 is fixed to the support shaft 6. After attaching the support shaft 6 and the spring holder 12 to the vertical frame 3 in this way, if the support protrusions 8 of the support shaft 6 are respectively fitted into the fitting holes 9 at both ends of the slat 4, the vertical frame 3 on both sides A plurality of slats 4 are supported under tension between support shafts 6 of the slats 4.

Therefore, in the slat support structure, the support shaft 6 inserted into the support hole 5 of the vertical frame 3 is attached to the spring holder 12, which is assembled in advance with the first holder 13, the second holder 14, and the coil spring 15. By fitting and inserting, it can be assembled extremely easily.

Effects of the Device As detailed above, this device is capable of moving the support shaft 6 outward from the vertical frame 3 by fitting the pre-assembled spring holder 12 into the support shaft 6 supported by the vertical frame 3. The biasing structure can be assembled very easily, and the coil spring 15 is attached to the spring receiver 1 of the first and second holders 13 and 14 made of synthetic resin.
Since it is supported between coil springs 15 and 19, it exhibits an excellent effect of preventing noise caused by friction between the coil spring 15 and other metal parts.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing an embodiment of a slat support device embodying this invention, Figs. 2 and 3 are exploded perspective views thereof, and Fig. 4 is a front view of a frame blind related to this invention. be. Framed blinds...1, Frame body...2, Support shaft...
...6, Spring holder...12, First holder...13, Second holder...14, Coil spring...15, Flange...17, Side plate...
...19, locking recess...25.

Claims (1)

[Claims for Utility Model Registration] 1. A support shaft is supported rotatably and movably in the axial direction on a frame, and the support shaft supports both ends of the slat, and the support shaft is biased outward from the frame to support the slat. The first holder 1, which is molded from synthetic resin, is used in a frame blind that prevents sagging due to its own weight.
3 and a second holder 14 are extendably connected in the axial direction of the support shaft 6 of the slat 4 with the first holder 13 on the outside, and spring receivers 17 and 19 are connected to the first and second holders 13 and 14. The spring holder 12 is constructed by disposing a coil spring 15 between the spring receivers 17 and 19 to bias both the holders 13 and 14 in a direction to separate them from each other.
A slat support device for a framed blind, characterized in that an engaging means is provided between the slat support shaft 3 and the tip of the support shaft 6 for immovably fitting and fixing the two. 2. The engaging means is a locking recess 25 provided at the tip of the support shaft 6 and a fitting protrusion provided in the square hole 16 of the first holder 13. Claim 1 of the Utility Model Registration Claim Slat support device for framed blinds.