JPH0259269B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a folding type winding shutter installed at doorways, windows, etc.

[Prior Art] Conventionally, as a folding type winding shutter, one disclosed in, for example, Japanese Patent Laid-Open No. 51-30138 has been proposed.

This involves installing a large number of blind members in the form of elongated strips in a vertically connected manner so as to be able to freely rotate with respect to each other, providing guide means for the shutter before and after the hoisting rotary shaft, and connecting the guide means to each end of the blind member. A mating pin is provided, and the shutter is folded into the door pocket while the blind member is rolled up by the shaft. The distance between the two branch guide grooves serving as guide means is determined by the distance between the pins.

However, in the conventional winding shutter, the blind members are rotatably connected to each other, so when descending from the rear of the shaft to the inner bottom of the door pocket, the adjacent blind members rotate relative to each other due to their own weight. A gap sufficient to allow the relative rotational movement is formed between the two members. Since the above-mentioned relative rotation creates a zigzag connection state, even if the distance between the two branch guide grooves is narrowed and the distance between the adjacent blind members is brought closer, both members are in close contact with each other in a straight line. As a result, the door bags are stacked in two rows at intervals at the inner bottom of the door bag, resulting in a problem that a door bag that is larger in the front-rear direction is required.

The present invention has been made in view of the above problems, and its object is to provide a foldable winding shutter that has a simple structure and can be stored compactly.

Embodiment A first embodiment embodying the present invention will be described below with reference to FIGS. 1 to 6. In FIG. Both ends of the tiered slats 41 are guided by the guide rail 3. Reference numeral 4 denotes a drive shaft for driving the shutter 1 to open and close, and is driven manually or electrically. Each slat 41 is wound up as the drive shaft 4 rotates.
is the rear upper part of shutter 1, that is, the entrance/exit;
It is designed to be stored in a folded state between storage cases 5 installed at the upper end of the window.

The details of the storage structure will be explained below. As shown in FIG. 4, the slat member 2 has a groove 6 at the lower end.
is formed, and a narrow portion 7 that can fit into the groove portion 6 is formed at the upper end. Further, the slat member 2 is formed into a hollow shape, and circular holes 8 and 9 are provided at the upper and lower ends thereof, respectively. 2 and 3, reference numeral 10 denotes end fittings attached to both ends of each slat member 2,
Tapping screws 1 screwed into the circular holes 8 and 9
1 to the slat member 2.
Further, guide shafts 14a and 14b, each of which has a locking pin 12 or a roller 13 rotatably supported at its tip, are alternately protruded from the center of the end fitting 10 in the vertically continuous slat member 2. , 14b, the first guide shaft 1 is also long.
4a and short second guide shafts 14b are alternately protruded.

Reference numeral 15 denotes a first connecting fitting as a first connecting member for connecting the slat members 2, and has elongated holes 16, 17, 18, 19 provided at four locations on the upper and lower sides.
The tapping screw 11 is inserted into the two elongated holes 17 and 18 on the inside of the , the locking pin 12 is inserted into the elongated hole 16 at the top, and the first guide shaft 14a or the elongated hole 19 at the bottom is inserted. Second guide shaft 14b
is inserted. The slat 41 is composed of a slat member 2 connected at both ends by a first connecting fitting 15, and the slat member 2 is not relatively rotatable.
It is possible to move only in the direction along 9.

Reference numeral 20 denotes a second connecting fitting as a second connecting member for connecting the slats 41, and the ends of the upper piece 20a and the lower piece 20b are rotatably supported by the shaft 21. , its upper piece 20
a and the lower piece 20b have elongated holes 22 and 23, respectively.
is formed, and the tapping screw 11 is inserted therethrough. Therefore, both ends are connected to this second connecting fitting 20.
The slat 41 connected to the
It is movable in the direction along 3.

In FIGS. 1 and 5, 24 is a winding gear fitted and fixed near both ends of the drive shaft 4,
It has the shape of an equilateral triangle with the top removed, and the drive shaft 4
As the two rotate, they rotate in the same phase. Then, as shown in FIG. 5, the slats 41 consisting of the two-stage slat members 2 connected in a relatively unrotatable manner by the first connecting fittings 15 are engaged with the long side portions 24a of the three pieces. The slat 41 is adapted to be rolled up by the long side portion 24a.

In FIG. 6, reference numeral 25 denotes guide grooves provided on both inner surfaces of the storage case 5, and are adapted to guide the guide shafts 14a, 14b. As the drive shaft 4 rotates, each slat 41 rolled up along the guide rail 3 reaches the position of the storage case 5, and the guide shafts 14a, 14
Only b rotates 180° around the drive shaft 4 while being guided by the guide groove 25, and is suspended behind the drive shaft 4.

A guide groove 2 is located slightly below the rear of the drive shaft 4.
5 communicates with the first storage groove 26a and the second storage groove 26b. The second storage groove 26b is the guide groove 2
5, the guide groove 2 is connected to the guide groove 2 through the step 27.
5, and only the second guide shaft 14b can be guided. The first storage groove 26a is located in front of the second storage groove 26b, has the same depth as the guide groove 25, and can guide the first guide shaft 14a in contact with the step 27. Then, the side edge 28 of the first storage groove 26a and the second storage groove 26
The distance from the slat 41 to b is as shown in FIG.
The distance is equal to the shortest distance between the adjacent first guide shaft 14a and second guide shaft 14b when the slat members 2 constituting the slat members 2 are in close contact with each other.

A support member 29 is attached to the lower ends of the storage grooves 26a and 26b, and is capable of supporting the end of the slat 41.

Next, the operation of the shutter 1 configured as described above will be explained.

When the drive shaft 4 of the shutter 1 in the fully closed state is rotated in the shutter opening direction, the winding gear 24
The slats 41 are rolled up one stage at a time, and are rolled up in order from the upper slat member 2 along the long holes 16, 17, 18, 19 of the first connecting fitting 15 and the long holes 22, 23 of the second connecting fitting 20. As shown in Fig. 1, each slat member 2 is
A gap is created in between. If the winding is stopped when this gap reaches a desired position on the shutter 1, ventilation and light can be brought in while the shutter 1 is closed, and the amount of light can also be adjusted.

When the drive shaft 4 is further rotated in order to open the shutter 1 from this state, each slat 41 is rotated 180 degrees to the rear of the drive shaft 4 by the winding gear 24, and one slat 41 is projected from each side of the slat 41. The guide shafts 14a and 14b are connected to the guide groove 25.
will be guided downwards. When the first guide shaft 14a reaches the upper end of the storage grooves 26a and 26b, it comes into contact with the step 27 and the first storage groove 26
a, the second guide shaft 14b is guided to the second storage groove 26b by the weight of the slat 41 without contacting the step 27. Therefore, the storage groove 26
As shown in FIG. 5, the upper and lower slats 41 of the slats 41 guided by the points a and 26b rotate relative to each other using the second connecting fitting 20 as a fulcrum, forming a zigzag shape.

The two-stage slat member 2, which is connected between the storage grooves 26a and 26b by the first connecting fitting 15 so as not to be relatively rotatable, has the first guide shaft 14a in contact with the side edge 28 of the first storage groove 26a, Since the second guide shaft 14b is guided to the second storage groove 26b,
The distance is gradually narrowed along the elongated holes 16 and 17. Eventually, the groove 6 of the slat member 2
is folded onto the support member 29 as shown in FIG.

Therefore, in this shutter 1, as the drive shaft 4 rotates, the slats 41 are wound up one stage at a time, and the slats 41 are guided into the storage grooves 26a and 26b provided in the storage case 5 at the rear lower part of the drive shaft 4, and the slats Since the two slat members 2 forming the storage case 41 are automatically folded in close contact with each other, the longitudinal length of the storage case 5 can be shortened. In place of the second connecting fitting 20 in this embodiment, it is also possible to use a wire or the like that connects the slats 41 so that they can move and rotate relative to each other.

Next, a second embodiment embodying the present invention will be described with reference to FIGS. 7 to 11, with only the differences from the previous embodiment.
As shown in FIGS. 9 and 10, the slat member 30 is formed into a substantially rectangular cylindrical shape, and a protrusion 31 is formed along the entire length of the slat member 30 on one side edge, and an opening groove 32 is formed on the other side edge. It is formed. This protrusion 31 has an outer circumferential surface and an inner circumferential surface formed in a circular arc shape in cross section. Reference numeral 33 denotes a first connecting fitting as a first connecting member for connecting the slat members 30, and is provided with arc-shaped bent portions 34 on the upper and lower edges, and the bent portions 34 are opened. It is inserted into the slat member 30 through the groove 32. Therefore, this first connecting fitting 33 connects the two-stage slat member 30 in a state in which it is upside down in the vertical direction, so that it can move in the direction along the connecting fitting 33 and cannot rotate relative to it. A slat 42 is formed by the slat member 30. Further, the first connecting fitting 33 is provided with a large number of elongated holes 35 for lighting.

Reference numeral 36 denotes a second connecting fitting as a second connecting member for connecting the slats 42, and the protrusion 31 of the slat member 30 is rotatably fitted into a groove portion 37 having an arcuate cross section. The second connecting fitting 36 is connected to two stages of slat members 30 connected in a relatively unrotatable manner by the first connecting fitting 33.
are connected to allow relative rotation with a maximum opening angle of 180°.

In FIGS. 7 and 8, reference numeral 38 designates end fittings attached to both ends of each slat member 30 with two tapping screws 39. One of the tapping screws 39 is screwed into the protrusion 31 of the slat member 30, and the other tapping screw 39 is screwed into attachment members (not shown) fixed to both ends inside the slat member 30. At the center of the end fittings 38 attached to the slat members 30 at every other stage, guide shafts 14a, 14b similar to those in the previous embodiment are provided.
are alternately projected.

Reference numeral 40 denotes an engaging body disposed at the upper rear portion of the support member 29 of the storage case 5, and is used to position the rear end portion of the slat 42 that is folded to the lowest level within the storage case 5.

In the above configuration, when the drive shaft 4 is rotated in the shutter opening direction, the first connecting fitting 33
Thus, two stages of slat members 30, which are connected so as to be relatively unrotatable, are sequentially wound up. Winding gear 2
Each slat 42 rotated 180° to the rear of the drive shaft 4 by
6b and folded onto the support member 29 as shown in FIG. At this time, the rear part of the lowermost slat 42 is positioned higher than the front part by the engaging body 40, so that the first connecting fitting 3
Slat members 30 in two stages connected by 3
A slat 42 consisting of is folded diagonally.

Therefore, in this embodiment, when the drive shaft 4 is rotated to wind up each slat 42, the rolled up slat 42 is placed inside the storage case 5 by the two stages of slat members 30 that make up the slat 42.
Since the storage case 5 is automatically folded in a close contact state and the slats 42 are folded diagonally, the length of the storage case 5 from front to back can be made even shorter than that of the first embodiment.

Effects As detailed above, in the present invention, the slat members constituting each slat are connected by the first connecting member so as to be expandable and contractible and relatively unrotatable, and
The adjacent first guide shaft and second guide shaft in a state in which each slat is relatively rotatably connected by a second connecting member, and the distance between both storage grooves is adjusted so that the slat members constituting each slat are in close contact with each other. By setting the shortest distance between the slats and the slats, the slat members constituting each slat move along the first connecting member when stored, and are in a contracted state in close contact with each other. Since it is folded up as a fulcrum, the slats can be stored compactly and the storage case can be shortened from front to back.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the shutter of the first embodiment embodying this invention, Fig. 2 is a front view showing the connected state of the slats, Fig. 3 is a right side view of the connected slats, and Fig. 4. 5 is a side view showing the slat winding mechanism, FIG. 6 is a front view showing the inside surface of the storage case, and FIG. 7 is a longitudinal sectional view of the slat with the shutter closed. FIG. 8 is a front view showing the connected state of the slats of the second embodiment; FIG. 8 is a side view thereof; FIG. 9 and FIG.
Figure 0 is a vertical cross-sectional view showing the connected state of the slats.
Figure 1 is a front view of the inner surface of the storage case. Shutter……1, Slat member……2,3
0, Drive shaft...4, Storage case...5, First guide shaft...14a, Second guide shaft...14b,
First connecting metal fitting as a first connecting member...1
5, 33, Second connecting fitting as a second connecting member...20, 36, First storage groove...26a, Second storage groove...26b, Slut...41,4
2.

Claims (1)

[Scope of Claims] 1. A plurality of slat members 2, 30 are connected by first connecting members 15, 33 so as to be expandable and retractable but not relatively rotatable to form slats 41, 42; connecting members 20, 3
6, the slats 41 and 42 are connected in multiple stages so as to be relatively rotatable, and one of the first guide shaft 14a and the second guide shaft 14b is alternately protruded from at least one end of the slats 41 and 42, and below the drive shaft 4. A first storage groove 26a for selectively guiding the first guide shaft 14a and a second storage groove 26b for selectively guiding the second guide shaft 14b are provided on the inner surface of the provided storage case 5, The distance between both storage grooves 26a and 26b is determined by adjusting the distance between each slat 4.
1 and 42, and each slat 4
The slat members 2 and 30 forming the slats 1 and 42 are set at the shortest distance between the adjacent first guide shaft 14a and the second guide shaft 14b in a state in which the slat members 2 and 30 forming the slat members 1 and 42 are brought into close contact with each other. ，
42 in the storage case 5, each slat 41, 42
A foldable winding shutter characterized in that the slat members 2 and 30 forming the shutter can be folded and stored in close contact with each other. 2 The storage case 5 has foldable slats 4
1. The folding type winding shutter according to claim 1, which has an engaging body 40 that supports 1 and 42 diagonally.