Opening device

Abstract

To provide an opening device that can improve workability. [Solution] The system comprises a frame 1, a sliding door 2, an operator device 3, and a bracket 4. The operator device 3 opens and closes the sliding door 2 and has a main body 6 attached to the lower frame 5 and a pulley 7 connected to the rotation axis 21 of the main body 6. The bracket 4 rotatably supports the pulley 7 and is screwed to the inner circumferential surface 8a of the vertical frame 8.

Description

[Technical Field]

[0001] The present invention relates to an opening device installed in an opening of a building. [Background Art]

[0002] For opening devices installed in an opening of a building, such as horizontally sliding projected windows, there is a demand for those with good constructability. [Summary of the Invention] [Problem to be Solved by the Invention]

[0003] In view of the above circumstances, an object of the present invention is to provide an opening device capable of improving constructability. [Means for Solving the Problem]

[0004] In order to achieve the above object, an opening device according to the invention of claim 1 comprises a frame, a sash, an operator device and a bracket, the operator device is for opening and closing the sash, and has a main body attached to the lower frame and a pulley connected to a rotating shaft of the main body, the bracket rotatably supports the pulley and is screwed to an inner peripheral side surface of a vertical frame, which is characterized in that. [Effect of the Invention]

[0005] The opening device according to the invention of claim 1 comprises a frame, a sash, an operator device and a bracket, the operator device is for opening and closing the sash, and has a main body attached to the lower frame and a pulley connected to a rotating shaft of the main body, the bracket rotatably supports the pulley and is screwed to an inner peripheral side surface of a vertical frame. By virtue of this structure, the installation of the operator device can be performed independently of the construction of the picture frame, thus improving constructability. In addition, since the bracket is screwed to the inner peripheral side surface of the vertical frame, the bracket is not easily deformed by the downward load applied to the pulley when opening and closing the sash. [Brief Description of the Drawings]

[0006] [Figure 1]This is a longitudinal cross-sectional view showing one embodiment of the opening device of the present invention. [Figure 2] This is a cross-sectional view of the opening device. [Figure 3] This is a front view of the interior side of the opening device. [Figure 4] This is an enlarged view of the interior side of the opening device, showing the area around the operator device. [Modes for carrying out the invention]

[0007] The embodiments of the present invention will now be described based on the drawings. Figures 1 to 4 show one embodiment of the opening device of the present invention. This opening device is applied to a horizontal sliding window for high places and, as shown in Figures 1 to 3, comprises a frame 1 attached to an opening in the building structure, a sash 2 supported on the frame 1 so as to be openable and closable, an operator device 3 for opening and closing the sash 2, and a bracket 4 for attaching a pulley 7 of the operator device 3.

[0008] As shown in Figures 1 and 2, frame 1 is constructed by framing an upper frame 9, a lower frame 5, and left and right vertical frames 8, 8. The upper frame 9, lower frame 5, and vertical frames 8, 8 are each composed of a metal frame section 10 made of an extruded aluminum alloy and a resin frame section 11 made of an extruded resin that covers the exposed portion of the metal frame section 10 on the indoor side. This suppresses the transfer of heat between the inside and outside and prevents condensation on the indoor side.

[0009] As shown in Figures 1 and 2, the shoji screen 2 is constructed by assembling an upper frame 12, a lower frame 13, and left and right vertical frames 14, 14 around the perimeter, and double-glazed glass 16 is fitted into grooves 15 formed on the inner circumference of each frame 12, 13, and 14 via glazing channels 17. Each frame 12, 13, and 14 is formed with an aluminum profile 18 on the exterior side and a resin profile 19 on the interior side, thereby suppressing the transfer of heat between the inside and outside and preventing condensation on the interior side. As shown in Figure 2, the shoji screen 2 is connected to the frame 1 by friction stays 20 positioned between the metal frame parts 10 of the left and right vertical frames 8,8 and the metal parts 18 of the vertical stiles 14,14, and opens by sliding outwards and rotating around a horizontal axis.

[0010] As shown in Figures 1, 2, and 4, the operator device 3 has a main body 6 attached to the indoor side surface 5a of the lower frame 5, a pulley 7 connected to the rotating shaft 21 of the main body 6 by a joint 22, and an endless ball chain 23 attached to the pulley 7. When the ball chain 23 is pulled and the pulley 7 is rotated, the rotating shaft 21 of the main body 6 rotates together with the pulley 7, and consequently the arm 24 (see Figure 1) provided on the main body 6 moves, causing the sliding door 2 to open and close.

[0011] Bracket 4 is formed by press-forming a metal plate and, as shown in Figures 1, 2, and 4, is formed in a plan view L-shape with an inner wall 25 and a facing wall 26. As shown in Figure 1, the wall 25 extends from the inner circumference of the right vertical frame 8 (viewed from the interior side) into the interior, and a mounting portion 27 is provided at the upper part of the exterior side. The bracket 4 is attached to the vertical frame 8 by abutting the mounting portion 27 against the inner circumference side surface 8a of the vertical frame 8 and fastening it with screws 28 from the inner circumference side. As shown in Figure 2, a metal backing plate 29 is provided on the part of the vertical frame 8 to which the bracket 4 is attached, and is screwed to the metal frame portion 10. The screws 28 that attach the bracket 4 are screwed into this backing plate 29. As shown in Figures 1, 2, and 4, the lower part of the recessed wall 25 has a contact portion 30a that abuts against the indoor side surface 5a of the lower frame 5 and a contact portion 30b that abuts against the inner circumferential side surface 5b of the lower frame 5. By bringing these contact portions 30a and 30b into contact with the lower frame 5, the downward tilting of the bracket 4 by the downward load received from the pulley 7 is restricted. The visible wall 26 is formed by bending inward from the interior end of the interior wall 25. As shown in Figure 1, a hole 32 is formed in the visible wall 26 for passing the shaft 31 of the pulley 7 through, and a bush 33 is fitted into the hole 32, so that the shaft 31 of the pulley 7 is rotatably supported by the bush 32. Bracket 4 has reinforcing ribs 34 continuously provided on the recessed wall 25 and the facing wall 26. The pulley 7 is covered by a cover 35 (see Figure 1).

[0012] The procedure for installing the operator device 3 is as follows: First, attach the main body 6 to the lower frame 5, and connect the arm 24 of the main body 6 to the lower frame 13 of the sliding door 2. Next, the bracket 4 is attached to the inner side surface 8a of the vertical frame 8 by screwing it in with screws 28 from the inner side. Next, the bush 33 is fitted into the hole 32 formed in the visible wall 26 of the bracket 4, the shaft 31 of the pulley 7 is passed through the bush 33 from the indoor side, and the tip of the shaft 31 is connected to the rotating shaft 21 of the main body 5 with the joint 22. Next, the ball chain 23 is attached to the pulley 7, and the cover 35 is installed.

[0013] Conventional operator devices of this type 3 have brackets 4 that are attached by screwing them to the vertical frame 36a or the lower frame 36b provided on the indoor side of the frame 1. Therefore, the operator device 3 could not be installed until the frame 36a and 36b were installed. As described above, this opening device is attached by screwing the bracket 4 to the inner side surface 8a of the vertical frame 8. Therefore, the operator device 3 can be installed independently of the installation of the picture frames 36a and 36b. The operator device 3 can be installed immediately after the frame 1 and the sash 2 are installed, or the operator device 3 can be pre-installed on the frame 1 at the factory, thus improving workability. Furthermore, if the bracket 4 were attached to the lower frame 5, the downward load applied to the pulley 7 when the ball chain 23 is pulled would deform the bracket 4's facing wall 25 in a bowing manner. However, in this opening device, the facing wall 25 of the bracket 4 is screwed to the vertical frame 8, and the orientation of the surface of the facing wall 25 is parallel to the direction of the applied load. Therefore, the facing wall 25 of the bracket 4 is less likely to deform due to the downward load applied to the pulley 7.

[0014] As described above, the present opening device comprises a frame 1, a sash 2, an operator device 3 and a bracket 4. The operator device is for opening and closing the sash 2, and comprises a main body 6 attached to the bottom frame 5, and a pulley 7 connected to a rotating shaft 21 of the main body 6. The bracket 4 rotatably supports the pulley 7 and is screwed to an inner peripheral side surface 8a of the vertical frame 8 (see FIG. 1). Accordingly, the operator device 3 can be installed independently of the construction of the frames 36a and 36b, thereby improving constructability. Further, since the bracket 4 is screwed to the inner peripheral side surface 8a of the vertical frame 8, the bracket 4 is less likely to be deformed by a downward load applied to the pulley 7 when the sash is opened and closed. The bracket 4 includes abutting portions 30a and 30b that abut against the bottom frame 5 to restrict the bracket 4 from tilting downward (see FIGS. 1, 2 and 4), thereby preventing the bracket 4 from loosening due to opening and closing operations, and improving the mounting strength of the operator device 3. In the operator device 3, a shaft 31 of the pulley 7 is passed through a hole 32 provided in the bracket 4 and rotatably supported (see FIG. 1), so that the pulley 7 can be easily attached and stably supported.

[0015] The present invention is not limited to the embodiments described above. The specific structures of the frame and the sash are not limited. The material and shape of the bracket can be appropriately changed. The opening manner of the sash is arbitrary, and the invention is not limited to horizontally sliding outward opening windows, but can also be applied to, for example, louver windows and awning windows. [Description of Reference Numerals]

[0016] 1 Frame 2 Sash 3 Operator device 4 Bracket 5 Bottom frame 6 Main body 7 Pulley 8 Vertical frame

Claims

[Claim 1] An opening device comprising a frame, a sliding screen, an operator device, and a bracket, wherein the operator device is used to open and close the sliding screen and has a main body attached to the lower frame and a pulley connected to the rotation axis of the main body, and the bracket rotatably supports the pulley and is screwed to the inner side surface of the vertical frame.

Images