JP2001280040A - Shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shutter which can easily connect slats to a winding drum. SOLUTION: This shutter comprises a winding device 10 to rotatably fit the winding drum 14 with a wheel 21 mounted on a cylindrical body 20 having a dovetail groove 23 to a fixed shaft 13 and a shutter curtain 11 with a plurality of slats connected thereto, a back plate 30 having a back plate body 32 and a leaf spring 33 is provided in the dovetail groove 23, the back plate body 32 is pressed against an inner surface 23b of an opening edge of the dovetail groove 23 by the leaf spring 33, and held thereby, and the slats 16 are connected to the cylindrical body 20 by screws 31 screwed to the back plate 30. The back plate 30 is not moved when screwing the slats 16, and the slats can be easily connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter device mounted on the outside of a sash window, an entrance of a garage, or the like.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. Hei 5-44478 discloses a first method.
Is known. In the first shutter device, a winding drum is rotatably fitted to a fixed shaft, and a winding device in which a coil spring is fixed over the fixed shaft and the winding drum is connected to a plurality of slats. It is equipped with a shutter curtain in which hanging metal fittings are connected to state-of-the-art slats, and the hanging metal fittings are fixed to a winding drum.

[0003] A second example disclosed in Japanese Utility Model Publication No. 49-29379 is disclosed.
Is known. The second shutter device has a shape in which a winding drum is rotatably fitted to a fixed shaft, a coil spring is fixed between the fixed shaft and the winding drum, and a shutter curtain is connected to the winding drum.

[0004]

In the first shutter device, a dovetail groove is formed on the outer peripheral surface of the winding drum, a back plate is inserted into the dovetail groove, and a screw is screwed into the back plate. As a result, the hanging bracket is connected to the take-up drum, so that its back plate needs to be positioned in the axial direction of the dovetail groove. However, since the above-mentioned back plate is only slidably inserted into the dovetail groove, the winding drum together with the fixed shaft may tilt or rotate between the positioning of the back plate and the connection of the hanging bracket. If it does, the back plate may move and the position may shift, and the positioning may be performed again, so that the connecting operation is troublesome.

In the second shutter device, one end of the coil spring is fixed to the side surface of the winding drum, that is, the wheel with bolts, so that the wheel is made of metal to increase the supporting strength of the coil spring. To this end, a slippery member is provided between the metal fixed shaft and the metal wheel to facilitate rotation of the wheel with respect to the fixed shaft.

Accordingly, an object of the present invention is to provide a shutter device which can solve the above-mentioned problems.

[0007]

According to a first aspect of the present invention, there is provided a winding device in which a winding drum is rotatably fitted to a fixed shaft and a spring is fixed between the fixed shaft and the winding drum, and a plurality of slats. A shutter curtain connected to the take-up drum, wherein the leading-end slats are connected to a take-up drum, wherein the take-up drum has an axially continuous dovetail on an outer peripheral surface thereof. A back plate is provided, a state-of-the-art slat is connected to the winding drum by screws screwed to the back plate, the back plate includes a back plate main body and an elastic member,
The shutter device is characterized in that the back plate body is pressed and held against the inner surface of the dovetail groove by the elastic member.

According to a second aspect of the present invention, there is provided a winding device in which a winding drum is rotatably fitted to a fixed shaft and a spring is fixed between the fixed shaft and the winding drum, and a shutter curtain in which a plurality of slats are connected. A shutter device comprising: a slat coupled to a winding drum;
The winding drum has a shape in which wheels are attached to both ends in the axial direction of a cylindrical body. One end of the spring is fixed to a fixed shaft, and the other end of the spring is fixed to an inner peripheral surface of the cylindrical body by bolts. The bolt is not protruded from the outer peripheral surface of the cylindrical body.

According to a third aspect, in the second aspect, the cylindrical body has an axially continuous groove on the outer peripheral surface thereof, and the other end of the spring is fixed to the bottom of the groove with a bolt. The bolt is a shutter device housed in the groove.

According to a fourth aspect of the present invention, there is provided a winding device in which a winding drum is rotatably fitted to a fixed shaft and a spring is fixed between the fixed shaft and the winding drum, and a shutter curtain in which a plurality of slats are connected. A shutter device comprising: a slat coupled to a winding drum;
The winding drum has a shape in which wheels are attached to both ends in the axial direction of a cylindrical body. One end of the spring is fixed to a fixed shaft, and the other end of the spring is a shaft formed on the outer peripheral surface of the cylindrical body. A shutter device, wherein the shutter device is locked and fixed in a groove continuous in a direction.

[0011]

According to the first aspect of the present invention, since the back plate body of the back plate provided in the dovetail groove of the winding drum is pressed and held against the inner surface of the dovetail groove by the elastic member, the winding drum is inclined. The back plate does not move even if it rotates. Therefore, the slat can be easily connected to the winding drum since the back plate only needs to be positioned once.

According to the second aspect, the other end of the spring is fixed to the inner peripheral surface of the cylindrical body of the winding drum by a bolt. There is no need to consider it, and the wheel can be made of resin to facilitate smooth rotation with respect to the fixed shaft. Moreover, since the bolt for fixing the other end of the spring does not protrude from the outer peripheral surface of the tubular body of the winding drum, the bolt does not hinder the winding of the slat.

According to the third aspect of the present invention, the bolt is housed in the groove, so that the bolt does not hinder the winding of the slat. Further, since the grooves are continuous in the axial direction, the cylindrical body of the winding drum can be manufactured from an extruded aluminum material.

According to the fourth aspect of the present invention, the other end of the spring is locked and fixed in the groove formed in the cylindrical body of the winding drum. It can be made of resin. In addition, since the other end of the spring is merely locked in the groove, the operation of connecting the other end of the spring to the winding wheel is easy.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a shutter device 2 is provided outside a sash window frame 1 for forming a sash window.
Is installed. The shutter device 2 is a winding device 1
0 and a shutter curtain 11. The winding device 10 includes a fixed shaft 13 fixed in a storage case 12.
And a winding drum 14 rotatably fitted to the fixed shaft 13 and a spring 15 described later. The shutter curtain 11 is formed by connecting a plurality of slats 16. The leading edge slat 16 of the shutter curtain 11 is connected to the winding drum 14. The shutter curtain 11 hangs down from an opening 17 formed on the lower surface of the storage case 12 and is guided along a guide 18 so as to be vertically movable. The guide 18 is detachably attached to the outdoor portion of the vertical frame 3 forming the sash window frame 1 with screws or the like. The storage case 10 is a building frame 4
And is higher than the upper frame 5 of the sash window frame 1.

As shown in FIG. 3, the winding drum 14 has a cylindrical body 20 and a pair of wheels 21. The cylindrical body 20 has a plurality of grooves 22 and a dovetail groove 23 on its outer peripheral surface in the circumferential direction. Is an aluminum extruded profile having a substantially circular cross section and having an axially continuous shape. The wheel 21 has a substantially circular inner protrusion 25 integrally provided on an inner surface of a circular end plate 24 and a small-diameter circular outer protrusion 26 integrally provided on an outer surface of the end plate 24. Yes, inner protrusion 25, end plate 24,
It is made of resin in which a fixed shaft insertion hole 27 is formed continuously over the outer protrusion 26. The inner projection 25 is discontinuous near the outer peripheral surface and has a small gap 25a. A notch 24a is formed near the outer peripheral edge of the end plate 24, and the notch 24a and the small gap 25a are continuous in the axial direction.

As shown in FIG. 4, fitting the inner protrusions 25 of the wheel 21 to both ends of the cylindrical body 20 is performed by each end plate 24.
Is in contact with the end surface of the cylindrical body 20, and the winding drum 14 is assembled. The fixed shaft 13 is inserted through the fixed shaft insertion hole 27 of the pair of wheels 21, and the winding drum 14 is rotatably supported on the fixed shaft 13, and
Stop at 3a.

The spring 15 is a coil spring as shown in FIG.
Is inserted, and the spring 15 is provided in the winding drum 14. One end of the spring 15 is fixed to the fixed shaft 13, and the other end is fixed to the winding drum 14. As a result, the take-up drum 14 is rotationally biased with respect to the fixed shaft 13 in a direction in which the shutter curtain 11 is taken up.

Next, a structure for connecting the most advanced slat 16 to the winding drum 14 will be described. As shown in FIG. 1, a back plate 30 is provided in the dovetail groove 23 of the tubular body 20, and a screw 31 is screwed into the back plate 30 to connect the slat 16 to the outer peripheral surface of the tubular body 20. The slat 16 has a cross-section having a flat plate-shaped intermediate portion 16a and a substantially character-shaped both-ends connecting portion 16b integrally connected to the intermediate portion 16a. One connecting portion 16b fits into the concave portion 20a, and the other connecting portion 16b contacts the step portion 20b.
Are attached along the outer periphery of the tubular body 20. Because of this, the shutter slat 11 is wound on the winding drum 14.
The winding diameter at the time of winding can be reduced.

As shown in FIG. 5, the back plate 30 is formed of a back plate main body 32 and an elastic member, for example, a leaf spring 33.
The back plate main body 32 has a substantially U-shape with a substrate 34 and a pair of side pieces 35, and has a slit-shaped hole 36 at the boundary between the substrate 34 and the side piece 35, and a screw hole 37 is formed in the substrate 34. I have. Specifically, it is manufactured by cutting and bending a single plate material, screw hole processing, and hole processing. Leaf spring 3
Reference numeral 3 is longer than the dimension between the pair of side pieces 35, and has protruding pieces 33a at both ends in the longitudinal direction. As shown in FIG. 6, the projection 33a of the leaf spring 33 is connected to a pair of holes 36 of the back plate main body 32.
It is attached by fitting into The leaf spring 33 is curved in an arc shape and protrudes from the side piece 35 (back plate main body 32).

When the back plate 30 is inserted into the dovetail groove 23 of the cylindrical body 20, the leaf spring 33 comes into contact with the bottom surface 23a of the dovetail groove 23 and the back plate main body 32 (substrate 34) is opened on the inner surface 23 of the dovetail groove 23.
b. As a result, since the back plate 30 is held and provided in the dovetail groove 23 so as not to be displaced, even if the winding drum 14 is tilted or rotated, the back plate 30 is rotated.
Does not move in the dovetail groove 23.

The back plate main body 32 is pressed to deform the leaf spring 32 so that the back plate main body 32
3b, the back plate 30 can be moved and positioned in the axial direction of the dovetail groove 23 in that state. Moreover, since the leaf spring 33 is curved in an arc shape in the axial direction of the dovetail groove 23, the back plate 30 can be smoothly moved in the axial direction of the dovetail groove 23 as described above.

The leaf spring 33 is pressed against the bottom surface 23a of the dovetail groove 23. The leaf spring 33 is in contact with one of the left and right vertical surfaces 23c of the dovetail groove 23, and the back plate body 32 is moved to the other of the left and right vertical surfaces of the dovetail groove 23. It may be pressed against 23d. Further, a coil spring, natural rubber, synthetic rubber, or the like may be used instead of the leaf spring 33.

Next, the fixing of the spring 15 will be described. As shown in FIGS. 7 and 8, one end 15 a of the spring 15 has a substantially circular shape, and a long bolt 40 inserted through the one end 15 a is penetrated in the radial direction of the fixed shaft 13 to screw a nut 41. As a result, one end 15a of the spring 15 is fixed to the fixed shaft 13. The other end 15b of the spring 15 has a substantially circular shape and is in contact with the bottom of the dovetail groove 23 of the cylindrical body 20, and
The other end 15b of the spring 15 is fixed to the tubular body 20 by inserting the bolt 42 into the other end 15b from the bottom of the third member 3 and screwing the nut 43. The other end 15b of the spring 15 may be fixed to the bottom of the groove 22 of the tubular body 20 with a bolt and a nut. In other words, it may be fixed to the inner peripheral surface of the cylindrical body 20 with bolts so that the bolts do not protrude from the outer peripheral surface of the cylindrical body 20.

Next, a second embodiment of fixing the spring 15 will be described. As shown in FIGS. 9 and 10, one end 15a of the spring 15 is fixed to the fixed shaft 13 by a long bolt 40 and a nut 41 in the same manner as described above. The other end 15b of the spring 15 is substantially U-shaped with a projection 28 linearly projecting in the axial direction and a linear turn-up portion 29. The projection 28 is an inner projection of the wheel 21 shown in FIG. 9 and 10, through a small gap 25a between the base plates 25 and the cutout portion 24a of the end plate 24,
Is locked and fixed in the dovetail groove 23 of the tubular body 20. The other end 15b of the spring 15 may be locked and fixed to the groove 22 of the tubular body 20.

As described above, the other end 15 of the spring 15
An example of a procedure for locking and fixing b in the dovetail groove 23 will be described. One end 15 a of the spring 15 is fixed to the fixed shaft 13. The fixed shaft 13 is attached to the cylindrical body 20 together with the spring 15.
The other end 15b (the folded portion 29) of the spring 15 is locked in the dovetail groove 23 of the tubular body 20 by being inserted into the inside. The wheel 21 is fitted on the fixed shaft 13 and its inner projection 25
Is fitted into the cylindrical body 20, the small gap 25a, the notch 24a and the other end 15b of the spring 15 (projection 28).
And the other end 15b of the spring 15
Prevents disengagement and restricts the position.

[0027]

According to the first aspect of the present invention, the back plate main body of the back plate provided in the dovetail groove of the winding drum is pressed and held against the inner surface of the dovetail groove by the elastic member. The back plate does not move when tilted or rotated. Therefore, since the back plate only needs to be positioned once,
The slat can be easily connected to the winding drum.

According to the second aspect of the present invention, since the other end of the spring is fixed to the inner peripheral surface of the cylindrical body of the winding drum by a bolt, the wheel of the winding drum has a supporting strength of the spring. There is no need to consider such factors, and the wheel can be made of resin to facilitate smooth rotation with respect to the fixed shaft. Moreover, since the bolt for fixing the other end of the spring does not protrude from the outer peripheral surface of the tubular body of the winding drum, the bolt does not hinder the winding of the slat.

According to the third aspect of the present invention, since the bolt is housed in the groove, the bolt does not hinder the winding of the slat. Also, since the grooves are continuous in the axial direction,
The cylindrical body of the winding drum can be manufactured from an extruded aluminum material.

According to the fourth aspect of the invention, the other end of the spring is locked and fixed in the groove formed in the cylindrical body of the winding drum. The wheels can be made of resin. In addition, since the other end of the spring is merely locked in the groove, the operation of connecting the other end of the spring to the winding wheel is easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an attached state of a shutter device.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is an exploded perspective view of a fixed shaft and a winding drum.

FIG. 4 is a perspective view of an assembled state of a fixed shaft and a winding drum.

FIG. 5 is an exploded perspective view of a back plate.

FIG. 6 is a perspective view of an assembled state of the back plate.

FIG. 7 is a front view of a spring mounting portion.

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a front view showing a second embodiment of the spring mounting portion.

FIG. 10 is a right side view of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Winding device 11 ... Shutter curtain 13 ... Fixed shaft 14 ... Winding drum 15 ... Spring 15a ... One end 15b ... Other end 16 ... Slat 20 ... Cylindrical body 21 ... Wheel 22 ... Groove 23 ... Dovetail 30 ... Back plate 31: Screw 32: Back plate body 33: Leaf spring (elastic member) 42: Screw

 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Hiroyuki Kaneda 4021 Mikkaichi, Kurobe-shi, Toyama F-term (reference) 2E042 AA01 BA02 BA04 CA02

Claims (4)

[Claims] 1. A winding device in which a winding drum is rotatably fitted on a fixed shaft and a spring is fixed between the fixed shaft and the winding drum; and a shutter curtain connecting a plurality of slats. A shutter device in which a leading slat is connected to a winding drum, wherein the winding drum has an axially continuous dovetail groove on an outer peripheral surface, and a back plate is provided in the dovetail groove. The state-of-the-art slat is connected to the winding drum by screwed screws, the back plate includes a back plate main body and an elastic member, and the back plate main body is pressed and held against the inner surface of the dovetail groove by the elastic member. Shutter device. 2. A winding device in which a winding drum is rotatably fitted to a fixed shaft and a spring is fixed between the fixed shaft and the winding drum; and a shutter curtain connecting a plurality of slats. A shutter device in which a slat at a tip is connected to a winding drum, wherein the winding drum has a shape in which wheels are attached to both ends in an axial direction of a cylindrical body, and one end of the spring is fixed to a fixed shaft, and a spring is provided. The other end portion of the shutter device is fixed to the inner peripheral surface of the cylindrical body with a bolt, and the bolt does not protrude from the outer peripheral surface of the cylindrical body. 3. An outer circumferential surface of the cylindrical body has a groove continuous in the axial direction, and the other end of the spring is fixed to the bottom of the groove with a bolt, and the bolt is housed in the groove. The shutter device according to claim 2. 4. A winding device in which a winding drum is rotatably fitted to a fixed shaft and a spring is fixed between the fixed shaft and the winding drum; and a shutter curtain connecting a plurality of slats. A shutter device in which a slat at a tip is connected to a winding drum, wherein the winding drum has a shape in which wheels are attached to both ends in an axial direction of a cylindrical body, and one end of the spring is fixed to a fixed shaft, and a spring is provided. Wherein the other end of the shutter device is locked and fixed to an axially continuous groove formed on the outer peripheral surface of the cylindrical body.