JPS626178Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an opening/closing device for a light-shielding sheet that blocks sunlight from the roof of a sunroom or the like.

Prior Art A sheet opening/closing device in which a drum is provided on the frame side of a daylighting roof using a glass plate or the like, and a light shielding sheet is wound around this drum, generally uses a biasing mechanism such as rubber or a spring on the drum. This biasing mechanism biases the drum in the direction of winding the sheet, and when shielding from light, pull the drawstring connected to the eaves side of the sheet to rewind the sheet by a predetermined amount from the drum, and the string is locked to the locking tool, and when releasing the light shielding, the drawstring is removed from the locking tool, and the drum is rotated by the biasing mechanism to wind up the sheet.

However, although this type of conventional opening/closing device is configured to fix the leading end of the sheet to a long sheet leader and rewind the sheet by pulling the sheet leader, both ends of the sheet leader Since the sheet leader is free, when the drawstring is pulled, the sheet leader is tilted, and as a result, when the sheet is repeatedly wound and rewound, the sheet is wound and unwound in a twisted state. It had some flaws.

Purpose of the invention An object of the invention is to provide an opening/closing device in which a sheet leader always moves in the correct state and the sheet is not wound up or rewound in a twisted state.

Structure of the invention According to the invention, a long sheet guide having a guide groove along the longitudinal direction of the side is provided in parallel from the frame side toward the eaves, and a rack is provided in the guide groove to seat the seat. This is accomplished by providing gears at each end of the leader that mesh with the racks.

Embodiment The roof of the sunroom shown in FIGS. 1 to 4 has a transparent roof plate 5 such as a glass plate attached to side beams 3 and rafters 4 extending in parallel from a ridgepole 2 fixed to the building frame 1. It is stuck in a stuck state. The eaves side of each rafter 4 is connected to a support 7 rising from a blind 6. The transparent plate 5 on the upper side of the blind 6 is attached to the blind 6 in a tightly fitted manner. A window 9 is formed between the rafter 4 and the end beam 8 located at the end.

As shown in FIG.
0 and 11, one of the sections 10 is attached to the frame 2 with bolts 12, the other section 11 is attached to the section 10 with screws 13 at the lower end, and attached to the frame 2 with bolts 14 at the upper end.
is installed on.

As shown in FIG. 2, the side wood 3 is composed of a frame material 15 that also serves as the upper frame of the window 9, and an auxiliary frame 17 fixed to the upper side of the frame material 15 with screws 16. A transparent plate 5 for the roof is attached to a frame material 15 in a tightly fitted manner.

Each rafter 4 has a rafter body 1 as shown in FIG.
8 and an auxiliary frame 20 fixed to the upper side of the rafter main body 18 with screws 19, and a transparent plate 5 for the roof is attached to the rafter main body 18 in a tightly fitted state.

The auxiliary frames 17 and 20 are the frame material 15 and the rafter main body 1
8 in the longitudinal direction.

Sheet guides 30 are provided on both side trees 3 and the rafter 4 located in the center along their longitudinal directions. As shown in FIG. 2, each sheet guide 30
has guide grooves 34 formed by two pairs of horizontal walls 32 and 33 extending horizontally from the upper and lower ends of the rectangular cylindrical main body 31 on both sides of the main body 31. Each sheet guide 30 is provided from the edge of the eaves of the roof to a winding mechanism 50 (described later) provided above the ridgepole 2, and is fixed to the upper side of the auxiliary frames 17, 20 with screws 21. .

Each guide groove 34 is formed along the entire longitudinal direction of the sheet guide 30 and has a U-shaped cross section with a side opening, and the opening is a vertical wall formed at the tip of the horizontal walls 32 and 33. The width is narrowed by 32' and 33'.

On the eaves side of each sheet guide 30, a vertical wall of the main body part 31 is cut away to form a space. Two pulleys 35 are provided in each space spaced apart from each other in the vertical and horizontal directions.

As shown in FIGS. 3 and 4, each pulley 35 has a shaft 3 fixed to a U-shaped support member 36.
7, and the support member 36 is attached to the seat guide 30 and the auxiliary frames 17, 2 so as to be rotatable independently.
It is screwed to a lid 38 that is screwed to 0.

Each guide groove 34 is provided with a rack 39 in the longitudinal direction, which is fixed to the horizontal wall 33 located below.

A light-shielding sheet 4 is placed between the sheet guides 30.
A sheet leader 41 for leading 0 is provided respectively. Each sheet leader 41 has a rectangular frame 42 to which the leading edge of the sheet 40 is fixed, and blocks 43 fitted into both ends of the frame 42. The block 43 protrudes into the guide groove 34 of the sheet guide 30, and is attached to the frame 42 by screws 4.
It is fixed by 4. Also, each block 43
is rotatably provided with a gear 48 that meshes with the rack 39, and a gear 45 provided on the same sheet leader 41 is fixed to the end of a connecting rod 46 having a hexagonal cross section that passes through the frame 42. ing. Guide groove 34 of the sheet guide 30 located at the center
A connecting ring 47 is attached to the block 43 located at , and one end of a drawstring 48 is connected to this connecting ring 47 . The drawstring 48 connects to the connecting ring 47
The main body portion 31 of the sheet guide 30 extends from the main body portion 31 of the sheet guide 30 toward the winding mechanism 50 via the pulley 35. Each of the drawstrings 48 is wound around a pulley located above, and the other is wound around a pulley located below, and are spaced apart in the vertical direction so as not to interfere with each other.

The winding mechanism 50 includes a fixed shaft 51 having a hexagonal cross section, a winding drum 52 rotatably provided on the fixed shaft 51, and a winding drum 52 that rotates in the direction of winding the sheet 40.
2, a string guide pulley 54 that guides the drawstring 48, and a guide roller 55 that guides the sheet 40.

The fixed shaft 51 is non-rotatably attached to the receiving fitting 56, and the guide roller 55 is attached to the receiving fitting 56.
It is rotatably supported. Each receiving bracket 56 has a support plate 58 attached to the frame 1 with a bolt 57.
is screwed to.

Drum 52, biasing mechanism 53, string guide pulley 5
4 and a guide roller 55 are provided for each sheet 40, and the end portion of each sheet 40 is fixed to the drum 52 via the lower surface of the guide roller 55.

In the illustrated example, each biasing mechanism 53 has one end fixed to the fixed shaft 51 and the other end fixed to the drum 52.
It is a torsion coil spring that stores torsional force when the drum 52 is rotated and the sheet 40 is rewound, but other mechanisms such as a plurality of rubbers, which are fixed to the fixed shaft 51 at both ends and to the drum 52 at the center, are used. May be used.

As described above, each drawstring 48 is wound around the pulley 35 from the connection ring 47 of the sheet leader 41 and extends along the main body 31 of the sheet guide 30 toward the winding mechanism 50, and further extends around the string guide pulley 54. After being wrapped around the frame material 11, it reaches the room through a guide tube 59 provided through the shape material 11.

The winding mechanism 50 is surrounded by a cover 62 whose upper end is fitted into the support plate 58 and whose lower end is screwed to the sheet guide 30.

A locking device 61 locks the drawstring 48 and prohibits rotation of the drum 52 in the direction of winding up the sheet 40, and is provided in the same number as the winding mechanism 50. Each locking tool 62 is fixed to the frame 1.

Each sheet 40 is made of a flexible material such as cloth, and has a width that reaches the guide groove 34 of the sheet guide 30 on both sides.

In this opening/closing device, when the drawstring 48 is released from the locking device 61, the drum 52 is rotated by the biasing mechanism 53 to wind up the sheet 40. Further, when the drawstring 48 is pulled, the sheet leader 41 moves toward the eaves along the sheet guide 30, and the sheet 40 can be rewound. Therefore, sheet 40
By rewinding the drawstring 48 by a desired amount and locking the drawstring 48 to the locking tool 61, the desired light shielding state can be maintained. Furthermore, the drawstring 48 is attached to the locking tool 6.
1, the drum 52 rotates due to the elastic force of the biasing mechanism 53 and winds up the sheet 40.

In the opening/closing device described above, both gears 45 provided at both ends of the sheet leader 41 are connected to each other by a connecting rod 46 so as to rotate as a unit, and mesh with a rack 39 provided in a guide groove 34. Therefore, even if the sheet leader 41 is pulled at one end, the sheet leader 41 will not become slanted, and even if the sheet 40 is repeatedly wound and unwound, the sheet 40 will not be twisted.

In addition, in the above-mentioned Example, although the opening/closing device is provided on the outdoor side, it may be provided on the indoor side. Moreover, instead of leading the drawstring 48 to the indoor side of the frame 1 side, it may be led from the eaves side of the sheet guide 30 to the indoor side of the eaves side. Further, one end is locked to the block 43, and the other end extends through the pulley 35 through the guide groove 34 on the opposite side toward the winding mechanism 50, and the base end of the sheet guide 30, that is, the end on the frame 1 side. A tension coil spring latched to a locking bolt attached to the seat is provided in place of the drawstring 48, and a rotation mechanism such as a chain sprocket is provided on the drum 52, and the drum 52 is rotated by this rotation mechanism to rotate the sheet. 40 windings and unwindings may be performed.

Effects of the Invention As described above, the present invention provides a long sheet guide having a guide groove along the longitudinal direction of the side, which is provided in parallel from the building frame side toward the eaves, and a rack is provided in the guide groove to form a seat leader. Since the racks and meshing gears are provided at both ends of the sheet, the sheet leader does not move diagonally, and therefore the sheet does not twist even if the sheet is repeatedly wound up and unwound.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of the roof of a sunroom equipped with the opening/closing device according to the present invention, and FIG.
FIG. 3 is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. 3. 1: skeleton, 30: seat guide, 34: guide groove, 35: pulley, 40: seat, 41: seat leader, 45: gear, 48: drawstring, 52: drum, 53: biasing mechanism.

Claims (1)

[Scope of utility model registration request] A drum is provided on the roof frame side and fixes the rear end of the sheet, and a U-shaped guide groove with an open side is provided parallel to the drum toward the eaves along the longitudinal direction. a plurality of sheet guides having a plurality of sheet guides; a sheet leader having a leading end of the sheet fixed thereto and moving along a guide groove of the adjacent sheet guide; and a sheet leader that urges the drum in a direction to wind up the sheet. 1. An opening/closing device for a light-shielding sheet, comprising a biasing mechanism, a rack provided in a guide groove of a front sheet guide, and gears meshing with the racks provided at both ends of the sheet leader.