JPS60188591A - Roll screen - 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 (Object of the Invention, Industrial Field of Application) The present invention is used in the fields of Lf rashers, roll screens, roll shades, roll blinds, etc.

The present invention relates to a roll screen.

(Prior Art and Its Problems) Conventional braking or stopping means for roll screens are expensive and prone to failure. A simple structure has the disadvantage that it does not operate accurately (objective of the present invention) An object of the present invention is to provide a roll screen that has a simple structure, is inexpensive to manufacture, and is difficult to break down and operates accurately. be.

(Structure of the Invention) The technical means of the present invention taken to solve the above problems are as follows.

That is, it includes a driving section, an operation control section, and a speed control section.

(Example) The present invention will be described in more detail based on an example shown in the drawings.

FIG. 1 is a sectional view of the device according to the present invention, and FIG. 2 is an enlarged view of section A in FIG. 1.

As shown in FIG. 3, the rotary pipe 1 is provided with a recess 10 and a protrusion extending over its entire length toward the inside to serve as a screen attachment groove.

In FIG. 1, the right end of the rotary pipe 1 is equipped with a mounting body 12 having a holder 111 projecting therefrom. Further, a cover body 14 is attached to the left end of the J-pipe 1 and has a through hole 13 through which a fixed shaft 2 (to be described later) can be supported.

The rotating pipe 1 is thus rotatably mounted between the brackets Bl and 132.

The through hole 13 is fixed on the left side of the rotating pipe by passing through it.
l + 2 is built in, and 1 rotation pipe 1 is connected to this fixed shaft 2.
It rotates around Sukell.

In this example, the national standard +I+2 is approximately 2 of the total length of the rotating pipe 1.
/3 length, the left end is supported by bracket B1,
The right end is a torsion bearing 21. It passes through the sliding body case 3 and is loosely inserted into the cylindrical cam 33. Note that the length of the rotating pipe l is not limited to the length of this embodiment.

A screw replug 22 having a through hole 220 is provided inside the lid 14 .

Then, between the torsion bearing 21 and the torsion plug 22,
The coil spring 23 serving as a driving force is provided over the entire length with +1 force in the direction of raising the screen.

Is there a pin in the twist plug 22? A torsion plug 22 is fixed to the fixed shaft 2 by 4 or 1Φ. coil spring 23
The left end of is fixed by being wrapped around a pin 24.

Further, a pin 25 is provided protruding from the torsion bearing 21, and the right end of the coil spring 23 is wound around the pin 25 and fixed.

The torsion bearing 21 and the torsion plug 22 are each tapered toward the internal force so that the coil spring 23 is tightly wound thereon.

The torsion bearing 21 has a recess lO of the rotating pipe l and a protrusion 10.
A gate structure that fits into the rotary pipe 1 is formed, and is inserted into and integrally attached to the rotary pipe 1 so as to rotate together with the rotary pipe 1.

As shown in Figure 2, the right end of the fixed shaft 2 is connected to the sliding case 3.
is installed.

The outer surface of the sliding body case 3 corresponds to the recess 10 on the inner surface of the rotating pipe 1.
It is formed into a shape that fits into the protrusion lot.

A sliding groove 31 is formed in the sliding body case 3 over almost the entire length in the longitudinal direction, and the sliding body 32 having a pin P projecting into this sliding groove 31 is loosely fitted and can be freely moved left and right. It allows you to move.

Inside the sliding body case is a cylindrical cam 3 which rotates only in one direction, that is, rotates only when pulling up the screen.
3 is a provision.

A spring flange 34 is used as a mechanism for rotating the cylindrical cam 33 in only one direction.

The spring flanch 34 is tightly fitted onto the fixed shaft 2, and its tip is 11-shi under the cylindrical force J.33. Then, when the Henne crank 34 pulls the screen and rotates the cylindrical cam 33 in the -1 direction, it loosens and the sliding body case 3 and the cylindrical cam 3
3 rotates together with the rotary pipe 1.

In this case, the spring clutch 34 is tightened, so either the sliding body case 3 rotates or the cylindrical cam 33 is fixed to the fixed shaft 2 and does not rotate.

On the cylindrical cam 33, planetary tooth Φ shafts 4 are arranged at four locations at intervals of 90', and 111 idler teeth 41 are rotatably attached to each of the cylindrical cams 33.

42 is a sun gear shaft, which is inserted into the fixed shaft 2 at one end.

A sun tooth tlj 43 is rotatably attached to the sun gear shaft 42, and is rotated by Hoshiyama If 4.

Planet gear shafts 44 are arranged in four positions at intervals of 90 degrees to the sun gear 43, and planetary gear shafts 45 are rotatably attached to the sun gear 43.

A sun wheel 46 is attached to the sun gear shaft 42 at the rotation eye 1 and is rotated by the planetary gear 45.

The planetary gears 41 and 45 mesh with an annular gear 47 attached to a speed control case 53 which is connected to the sliding body case 3.

The sun southeast 46 is rotated. A cover 5 is attached to the sun gear 46 to control the rotation speed and keep it constant.

FIG. 4 is a cross-sectional view taken along line C-C. When the rotation speed is high, the cabana weight 51 opens outward around the foot 55 due to centrifugal force, and the cabana comb 52 contacts the speed control case 53, controlling the rotation speed of the rotary pipe. It is meant to be dropped. Naori/Hennaway () 51 is constantly pulled inward by a coil spring (not shown).

FIG. 5 is a developed view showing the movement of the cylindrical cam 33 and the sliding body 32.

The cylindrical cam 33 has continuous grooves 300 and 301 formed on both the left and right sides.

Guide grooves 302 and 303 are formed between the continuous grooves 300 and 301 symmetrically with respect to the axis of the cylindrical cam 33.

Therefore, there are three embankments 304° and 305 degrees symmetrical about the axis.
is formed. A part 306 of the continuous groove 300 to the left of the embankment 304 is formed to be thin, and therefore, this part of the continuous groove 300 is formed wider than the other part.

Further, in the continuous groove 301, the right 12 part 307 of the embankment 305 is formed to be thin, and therefore, in the narrow groove 301, this part is formed wider than other parts.

A pin P of the one-to-one moving body 32 is engaged with this continuous groove 300, 301.

The pin P moves due to the movement of the cylindrical force L.
Since the pin P moves, the relative movement of the pin P and the cylindrical cam 33 will be explained.

(B) For example, if the screen is lowered when the pin P is at the position of the 4 points aJlj, the pin P moves to the connection groove 3 (11) in the direction of the arrow, but the pin P moves into the concave part 308 at the bright point 307. - to be done.

In this state, the spring flange 34 is loosened and the circle t, -1 cam rotates together with the rotation pipe l.

(b) Excluding the pulling and lowering force of the screen, the pin P has four parts 3
09 and the screen is in the stop 1 strip.

(c) When raising the screen, lower the screen a little and the pin P moves from position C to position d, and the state I is released.

After that, when the hand is released, the screen moves upward in the direction of the arrow in the continuous groove 300 and is stored in the upper y1 sea.

(d) If you want to stop the screen midway, pull the screen down again.

Then, the pin P moves from the position e to the f position of the fourth part 310 and lowers the screen, and when the pin P is released, it moves to the position g of the recess 311 and repeats the above operation.

That is, pin P has continuous groove 300 and J! Stopping and raising of the screen is controlled without moving between the I-connection grooves 301.

(Effects of the Invention) As described above, the present invention has the above structure, so the structure is 1)
It is possible to provide a roll screen that has a low manufacturing cost and is difficult to break down and operates accurately.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a cross-sectional view of the device according to the present invention, FIG. 2 is an enlarged view of section A in FIG. 1, FIG. 3 is a sectional view taken along line B-B, and FIG. 5 is a cross-sectional view taken along the line C-C, FIG. 5 is a JiC open IA diagram showing the movement of the cylindrical cam and the sliding body, and FIG. 6 is a cross-sectional view taken along line II of the cylindrical cam. Patent applicant Katsuhiko Kajihara, Patent attorney, Benyo Aroma Gyo Co., Ltd., and Kazuo Wakasugi, Commissioner of the Japan Patent Office.1. Display of the case 1982 Patent Application No. 04527.6 2, Name of the invention Roll screen 3, Person making the amendment Relationship to the case Patent applicant Address 428 Ota, Hirokawa-cho, Yame-gun, Fukuoka Name Representative of Kyushu Aroma Kogyo Co., Ltd. Deer 1) Usa difference 4, agent 'rEL 0942-32-6711 drawing Figure 5

Claims (1)

[Claims] A roll screen comprising a driving part, an operation control part, and a speed control part.