JP7461726B2 - Opening limit stopper - Google Patents

Description

Application of Article 30, paragraph 2 of the Patent Act A. On July 1, 2019, LIXIL Corporation published a "Small Opening Stopper for Sliding Windows" on pages 56 and 57 of the "Thermos II-H/Thermos L Product Catalog". B. On July 1, 2019, LIXIL Corporation distributed materials on the "New Settings" of the "Small Opening Stopper for Sliding Windows" at LIXIL Corporation's sales offices nationwide. C. On July 1, 2019, LIXIL Corporation published a "Small Opening Stopper for Sliding Windows" on page 7 of the "High Performance Hybrid Window Tostem Thermos II-H/L Fire Door FG-H/L Proposal Brochure". D. On July 30, 2019, LIXIL Corporation distributed materials on the "Notice of Additional Models and Options" of the "Small Opening Stopper for Sliding Windows" at LIXIL Corporation's sales offices nationwide. E. On September 20, 2019, the “Small Opening Stopper for Sliding Windows” was published on pages 56 and 57 of pages 54 to 127 of the web catalog published at the website address (https://webcatalog.lixil.co.jp/iportal/CatalogDetail.do?method=initial_screen&catalogID=12308420000&volumeID=LXL13001&designID=newinter). F. On September 26, 2019, Lixil Corporation announced a "small opening stopper for sliding windows" on page 3 of the "PRESS RELEASE" news release published on their website (https://newsrelease.lixil.co.jp/news/) under the heading "Renewal of four series of high-performance hybrid windows including THERMOS II-H and THERMOS L."

The present invention relates to an opening limiting stopper for a sliding opening and closing type fixture. More specifically, the opening limiting stopper is used for a sliding opening and closing type fixture having a frame body and an inner screen and an outer screen that are arranged within the frame body so that they can slide relatively.

Conventionally, there is known an opening limiting stopper for use in a sliding opening and closing type fitting having a frame body and an inner and outer screens that are arranged within the frame body so that they can slide relatively (see, for example, Patent Documents 1 and 2). The opening limiting stopper comprises a crescent part, a crescent receiving part, and a crescent limiting arm that connects the crescent part and the crescent receiving part, and the crescent limiting arm is rotatably connected to the crescent receiving part that is screwed to the joint frame of the outer screen. The crescent part has an engaging protrusion that can be engaged and disengaged with the crescent limiting arm. When the engaging protrusion is engaged with the crescent limiting arm, the opening of the inner and outer screens is restricted.

JP 2019-127738 A JP 2017-150218 A

In the open limiting stoppers described in Patent Documents 1 and 2, the crescent receiving portion is fixed to the fitting frame by two screws spaced apart vertically, and the crescent limiting arm is rotatably fastened to a support shaft below the two screws at a position spaced apart in the forward direction from the two screws in the crescent receiving portion.

The crescent limiting arm is rotatably fastened to a support shaft lower than either of the two screws at a position spaced apart in the vertical direction from the two screws. Therefore, when the crescent limiting arm rotates around a support shaft lower than the two screws, the crescent limiting arm is pulled downward, and a load acts diagonally downward on the two screws lined up vertically, making the crescent receiving part more likely to rotate and shift out of position.

The present invention aims to provide an opening limiting stopper that includes a crescent limiting arm that connects the crescent portion and the crescent receiving portion, and that can reduce the positional shift of the crescent receiving portion even when the crescent receiving portion receives a load from the crescent limiting arm.

The present invention relates to an opening limiting stopper used in a sliding opening and closing type fitting having a frame body and an inner screen and an outer screen arranged to be relatively slidable within the frame body, the opening limiting stopper having at least two first fastening through holes arranged spaced apart vertically and a second fastening through hole arranged at a position spaced apart in the front direction from the two first fastening through holes, a crescent receiving portion fixed to the outer screen side joint frame of the outer screen by a first fastening member in the two first fastening through holes, and a crescent receiving portion fixed to the outer screen side joint frame of the outer screen by a second fastening member in the second fastening through hole. The opening limit stopper for a sliding opening and closing type fitting includes a crescent limiting arm that is rotatably connected to a locking portion, and a crescent portion that is fixed to the inner screen side joint frame of the inner screen and has an engagement portion that can move between an engagement position where it engages with the crescent limiting arm and a non-engagement position where it does not engage with the crescent limiting arm, and the second fastening through hole is formed so that at least a portion of the hole is located between the upper end of the upper first fastening through hole and the lower end of the lower first fastening through hole in the vertical direction.

FIG. 2 is a front view of a fixture according to one embodiment, seen from the inside of the room. FIG. 4 is a perspective view showing an attached state of the crescent portion. 13 is a perspective view showing an attachment state of a crescent receiving portion and a crescent restraining arm. FIG. This is a front view showing the state in which the opening of the inner and outer shutters is restricted by the opening limiting stopper. This is a front view showing the inner and outer shutters in a closed state. This is a view from above showing the state in which the opening of the inner and outer shutters is restricted by the opening limiting stopper. This is a view from above of the inner and outer shutters when closed. FIG. 4 is an exploded perspective view of the crescent portion in an attached state. FIG. 4 is a vertical cross-sectional view of the crescent portion in an attached state. 13 is a diagram showing the case where the engagement pin is in a disengaged position where it does not engage with the crescent limiting arm. FIG. 13 is a diagram showing the engagement pin at an engagement position where it engages with the crescent limiting arm. FIG.

One embodiment of the present invention will be described in detail below with reference to the drawings. In this specification, the term "visible direction" refers to the face direction of the inner screen 3 and outer screen 4 housed in the frame 2 attached to an opening in the building structure, and the "visible direction" refers to the thickness direction (i.e., the depth direction) of the inner screen 3 and outer screen 4. Additionally, the "visible surface" refers to the respective surfaces of the fitting 1 facing the outside and inside of the room, and the "visible surface" refers to the surface of the fitting 1 that extends in the indoor/outdoor direction.

The fixture 1 (sliding fixture) of this embodiment constitutes a so-called sliding window, and as shown in Figure 1, comprises a frame 2, an inner screen 3 and an outer screen 4 arranged within the frame 2 so as to be able to be opened and closed, and an opening limiting stopper 5 comprising a crescent lock 6.

The frame body 2 is formed into a rectangular shape by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24. The frame body 2 is attached to an opening in the building frame (not shown).

The inner and outer screens 3 and 4 are both sliding doors, and are arranged so as to be relatively slidable within the frame 2. The inner and outer screens 3 and 4 form a so-called sliding window, in which the opening 2a of the frame 2 is opened or closed by sliding them in the front direction within the frame 2.

As shown in Figure 1, the inner shoji screen 3 is made up of a rectangular frame 35 formed by a long upper frame 31, a lower frame 32, and left and right vertical frames, the inner frame 33 (the inner shoji side frame), and a door end frame 34, and glass 36 fitted and fixed into the frame 35.

As shown in FIG. 1, the outer shoji screen 4 is composed of a rectangular frame body 45 formed by a long upper frame 41, a lower frame 42, and left and right vertical frames, the outer frame 43 (the outer shoji screen side frame), and a door end frame 44, and glass 46 fitted and fixed into the frame body 45.

A crescent lock 6 is attached to the inner screen 3 and the outer screen 4. As shown in Figures 2 and 3, the crescent lock 6 has a crescent portion 7 attached to the inner frame 33 of the inner screen 3, and a crescent receiving portion 8 attached to the outer frame 43 of the outer screen 4. With the inner screen 3 and the outer screen 4 closed, the handle portion 721 of the crescent portion 7 (see Figure 2) can be rotated to engage and disengage the main body side hook portion 722 with the receiving side engagement hook portion 84 of the crescent receiving portion 8 (see Figure 3), thereby locking and unlocking. The crescent portion 7 and the crescent receiving portion 8 constitute a part of the opening limit stopper 5 of the present invention.

The opening limit stopper 5 is used in a fixture 1 (slide-opening fixture) equipped with a sliding window. The opening limit stopper 5 limits the open state of the inner screen 3 and the outer screen 4 by the crescent limit arm 9 that connects the crescent portion 7 and the crescent receiving portion 8. As shown in Figures 2 and 3, the opening limit stopper 5 has a crescent portion 7, a crescent receiving portion 8, and a crescent limit arm 9.

As shown in Figures 4A to 5B, when the open limiting stopper 5 is in an engagement position where the engagement pin 713 (described later) engages with the crescent limiting arm 9, the crescent limiting arm 9 can restrict and move the inner and outer screens 3 and 4 to a restricted position in the open state (see Figures 4A and 5A) and a closed position (see Figures 4B and 5B).

As shown in Figures 6 and 7, the crescent part 7 is fixed to the visible surface of the inner frame 33 of the inner screen 3. The crescent part 7 has a base part 71, a crescent body 72, and a crescent side fire spacer 73 (spacer).

The base portion 71 is formed to extend in the vertical direction. The base portion 71 has a recess 711 and a pin movement mechanism portion 712.

The recess 711 extends in the vertical direction and is recessed from the surface of the base 71, and has a rectangular shape when viewed from the surface side. The recess 711 has an upper groove 711a formed on the upper end side, a U-shaped hole 711b formed at the bottom of the upper groove 711a, a lower groove 711c formed on the lower end side, and a U-shaped hole 711d formed at the top of the lower groove 711c. The upper groove 711a and the lower groove 711c are cut out in the shape of a groove extending laterally at the upper and lower ends of the recess 711. The U-shaped holes 711b and 711d are formed below the upper groove 711a or above the lower groove 711c, penetrating the base 71.

As shown in Figures 8A and 8B, the pin movement mechanism 712 has an engagement pin 713 (engagement portion) and a pin operation portion 714. The engagement pin 713 is formed in a pin shape and can be inserted into and removed from the insertion opening 932 of the crescent limiting arm 9. The engagement pin 713 can be moved between an engagement position (see Figure 8B) where it protrudes from the crescent portion 7 and engages with the guide groove 931 of the crescent limiting arm 9, and a non-engagement position (see Figure 8A) where it is retracted toward the crescent portion 7 and retreats from the guide groove 931 of the crescent limiting arm 9. The engagement pin 713 has a base end thick diameter portion 713a, a thin diameter portion 713c, and a tip portion 713d.

The base end thick section 713a is formed on the crescent section 7 side and has a larger diameter than the thin section 713c. The tip side of the base end thick section 713a has a tapered inclined surface 713b whose diameter decreases toward the tip side.

The thin-diameter portion 713c is connected to the tip of the base-end thick-diameter portion 713a and has a smaller diameter than the base-end thick-diameter portion 713a. The thin-diameter portion 713c can engage with the guide groove 931 of the crescent limiting arm 9 when the engagement pin 713 is in the engagement position.

The tip portion 713d is connected to the tip side of the thin diameter portion 713c (the side opposite to the base end thick diameter portion 713a) and has a larger diameter than the thin diameter portion 713c. When the thin diameter portion 713c engages with the guide groove 931 of the crescent limiting arm 9, the tip portion 713d is engaged with the guide groove 931 so that the thin diameter portion 713c does not come out of the guide groove 931 of the crescent limiting arm 9.

The pin operating part 714 has an operating rotation hole 714a. By inserting the operating shaft 715a of the pin operating tool 715 into the operating rotation hole 714a and rotating it, it is possible to move the engaging pin 713 between an engagement position where the engaging pin 713 protrudes and a non-engagement position where the engaging pin 713 retracts.

As shown in Figures 6 and 7, the crescent body 72 is attached to the front side of the base 71 so as to cover the recess 711 of the base. The crescent body 72 has a handle portion 721 and a body-side hook portion 722. With the inner screen 3 and the outer screen 4 closed, the handle portion 721 can be rotated to engage and disengage the body-side hook portion 722 with the receiver-side engagement hook portion 84 of the crescent receiver 8 (see Figure 3, etc.), thereby locking and unlocking the door.

The crescent side fire spacer 73 is made of metal, and is positioned in the recess 711, between the base 71 and the crescent body 72. Because the crescent side fire spacer 73 is made of metal, even if the resin base 71 is lost in a fire or the like, it will remain without being burned, so that no gap is formed between the crescent body 72 and the inner frame 33 of the inner screen 3. As a result, even if the base 71 melts in a fire, the crescent body 72 can be supported by the crescent side fire spacer 73.

The crescent side fire spacer 73 has a U-shaped cross section when cut vertically. The crescent side fire spacer 73 has a plate-shaped portion 731 extending vertically, a pair of upper end pieces 732 formed on the upper end side of the plate-shaped portion 731, and a pair of lower end pieces 733 formed on the lower end side of the plate-shaped portion 731.

The plate-like portion 731 is formed in a rectangular plate shape slightly smaller than the opening area of the recess 711 of the base portion 71 of the crescent portion 7 , and is disposed in the recess 711 of the base portion 71 of the crescent portion 7 .
The plate-like portion 731 has an upper end and a lower end formed with U-shaped cutout portions 731a, 731b that are open at the upper end side or the lower end side.

The pair of upper end pieces 732 are formed on the upper end side of the plate-shaped portion 731 and protrude toward the base portion 71 from a portion avoiding the U-shaped cutout portion 731a at the upper end of the plate-shaped portion 731. When the plate-shaped portion 731 is placed in the recess 711, the pair of upper end pieces 732 can be inserted into the upper end groove 711a of the recess 711 of the base portion 71.

The pair of lower end pieces 733 are formed on the lower end side of the plate-shaped portion 731 and protrude toward the base portion 71 from a portion avoiding the U-shaped cutout portion 731b at the upper end of the plate-shaped portion 731. When the plate-shaped portion 731 is placed in the recess 711, the pair of lower end pieces 733 can be inserted into the lower end groove 711c of the recess 711 of the base portion 71.

The crescent section 7 configured as above is fixed to the inner frame 33 of the inner screen 3 with the crescent side fire spacer 73 placed between the base section 71 and the crescent body 72. In this embodiment, the inner frame 33 of the inner screen 3 has a hybrid structure composed of a metal material such as aluminum and a resin material such as polyvinyl chloride. As shown in Figures 6 and 7, the inner frame 33 of the inner screen 3 has a metal frame section 331 arranged on the inside and a resin frame section 332 arranged on the outside.

In addition, in this embodiment, the inner frame 33 of the inner screen 3 is fireproof. Specifically, in the fireproof inner frame 33 of the inner screen 3, a cutout portion 332a is formed in the resin frame portion 332 of the inner frame 33 at the position where the crescent portion 7 is attached, as shown in Figures 6 and 7, and a frame side fire spacer 38 is placed in the cutout portion 332a.

The frame-side fire spacer 38 has a lower plate-shaped portion 381 that extends in the vertical direction, inclined step portions 382 that are connected to the upper and lower ends of the lower plate-shaped portion 381 and incline upward or downward as they approach the outside of the inner frame 33, an upper plate-shaped portion 383 that is connected to the upper and lower ends of the inclined step portions 382 and is formed parallel to the lower plate-shaped portion 381, a pair of upper end pieces 384, and a pair of lower end pieces 385.

The upper plate portion 383 has an upper end and a lower end formed with U-shaped cutout portions 383a, 383b that are open at the upper end or the lower end.
A pair of upper end pieces 384 are formed on the upper end side of the upper plate-shaped portion 383 and protrude toward the metal frame portion 331 of the inner frame 33 from the portion avoiding the U-shaped cutout portion 383a at the upper end of the upper plate-shaped portion 383.
A pair of lower end pieces 385 are formed on the lower end side of the upper plate-shaped portion 383 and protrude toward the metal frame portion 331 of the inner frame 33 from the portion avoiding the U-shaped cutout portion 383b at the upper end of the upper plate-shaped portion 383.

When attaching the crescent section 7 to the inner frame 33 of such a fireproof inner screen 3, as shown in Figure 6, the base section 71, the crescent side fire spacer 73, and the crescent body 72 are arranged in this order on the frame side fire spacer 333 arranged in the metal frame section 331 of the inner frame 33 and the cutout section 332a of the resin frame section 332. Then, screws 75 are inserted in order from the crescent body 72 side toward the metal frame section 331 of the inner frame 33 for the crescent body 72, the crescent side fire spacer 73, the base section 71, the frame side fire spacer 333, and the metal frame section 331 of the inner frame 33, and they can be fastened together by the screws 75. Here, the crescent side fire spacer 73 is formed in a U-shape in cross section, and can be temporarily fixed to the crescent body 72 by fitting it into the upper end groove 711a and the lower end groove 711c of the recess 711 of the crescent body 72. This improves the workability when attaching the crescent part 7 to the inner frame 33 of the inner screen 3.

As shown in Figures 3 to 4B, the crescent receiving portion 8 is constructed from a single plate-like member. As shown in Figure 3, the crescent receiving portion 8 is fixed to the back surface of the visible surface of the outer frame 43 of the outer screen 4. The crescent receiving portion 8 has a frame-side mounting plate portion 81, a step portion 82, an arm-side mounting plate portion 83, and a receiving-side engagement hook portion 84.

As shown in Figures 3 to 4B, the frame side mounting plate portion 81 is formed into an approximately rectangular plate parallel to the visible surface of the sash frame 33, is positioned on the back side of the visible surface of the sash frame 33, and partially protrudes outside the sash frame 33.
The step portion 82 is formed in a step shape approximately the same as the plate thickness at the outer end portion in the viewing direction of the frame side mounting plate portion 81.
The arm side mounting plate portion 83 is connected to the frame side mounting plate portion 81 via a step portion 82. The arm side mounting plate portion 83 is formed in a tapered shape in which the width in the upper and lower directions becomes narrower as it moves away from the inner frame 33.

The receiving hook portion 84 is formed at the tapered end of the arm side mounting plate portion 83 so as to protrude in a hook shape toward the interior of the room, and can engage with the main body side hook portion 722 of the crescent portion 7.

As shown in FIG. 4A, the crescent receiving portion 8 has two first fastening through holes 85 and a second fastening through hole 86.

The two first fastening through holes 85 are arranged vertically apart in the inner part of the inner frame 33 in the frame side mounting plate part 81. The crescent support part 8 is fixed to the outer frame 43 (the outer frame side frame) of the outer frame 4 by the first fastening member 8a at the two first fastening through holes 85. As shown in FIG. 3, the outer frame 43 is formed with two frame side fastening horizontally elongated through holes 431 that are vertically separated. The crescent support part 8 is fixed by the first fastening member 8a at the two first fastening through holes 85 in the crescent support part 8 and the frame side fastening horizontally elongated through hole 431 of the outer frame 43. The frame side fastening horizontally elongated through hole 431 is composed of a long hole with a predetermined length in the horizontal direction. This allows the left-right mounting position of the crescent support part 8 to be adjusted.
The first fastening member 8a may be, for example, a screw or a rivet.

As shown in Fig. 4A, the second fastening through hole 86 is disposed on the lower side of the side of the stile 43 on the arm-side mounting plate portion 83, spaced apart from the two first fastening through holes 85 on the side away from the stile 43 in the view direction. The second fastening through hole 86 is formed such that at least a portion of the hole is located in the region R between the upper end 85a of the upper first fastening through hole 85 and the lower end 85b of the lower first fastening through hole 85 in the vertical direction. The second fastening through hole 86 is also formed such that it is located below the center C between the two first fastening through holes 85 in the vertical direction.
The second fastening member 9a may be, for example, a screw or a rivet.

The crescent limiting arm 9 is rotatably connected to the crescent receiving portion 8 by the second fastening member 9a at the second fastening through hole 86 of the crescent receiving portion 8. The crescent limiting arm 9 has a support shaft side plate portion 91, an inclined step portion 92, and an arm portion 93.

The shaft side plate portion 91 is formed as a flat plate extending a predetermined length, and the crescent side fastening through hole 94 formed on one end side and the second fastening through hole 86 of the crescent receiving portion 8 are rotatably connected to the crescent receiving portion 8 by the second fastening member 9a.

The inclined step portion 92 is connected to the other end of the support shaft side plate portion 91 and is formed in a step shape that is inclined relative to the support shaft side plate portion 91. The inclined step portion 92 inclines from the outside to the inside of the room as it moves away from the other end of the support shaft side plate portion 91.

The arm portion 93 is connected to the end of the inclined step portion 92 on the indoor side, and is formed in a plate shape that extends in an elongated shape. The arm portion 93 is connected to the support shaft side plate portion 91 across the inclined step portion 92, and is formed in a flat plate shape that is parallel to the support shaft side plate portion 91 and extends a predetermined length. The arm portion 93 is formed with a guide groove 931, an insertion opening 932, and a protruding piece 933. The guide groove 931 extends along the longitudinal direction of the arm portion 93. The insertion opening 932 is formed connected to one end of the guide groove 931, and is an opening through which the engagement pin 713 is inserted and removed.

The following describes how the open limiting stopper 5 configured as above can be used to limit the open state of the inner and outer shutters 3 and 4. First, with the inner and outer shutters 3 and 4 closed, as shown in Figures 8A and 8B, the engagement pin 713 of the crescent portion 7 is protruded by the pin operating portion 714 and moved to an engagement position where it engages with the crescent limiting arm 9.

Continuing, when the inner screen 3 or the outer screen 4 is moved to the open state, as shown in FIG. 4A, the engagement pin 713 comes into contact with the end of the guide groove 931 of the crescent limiting arm 9 opposite the insertion opening 932, and the crescent limiting arm 9 restricts further opening of the inner screen 3 and the outer screen 4.

In FIG. 4A, a force pulling the crescent receiver 8 toward the lower left acts on the second fastening through hole 86. Conventionally, the second fastening through hole in the crescent receiver was formed at a position lower than the two first fastening through holes, so the crescent limiting arm was rotatably fastened to a support shaft lower than either of the two screws at a position spaced apart in the vertical direction from the two screws. Therefore, when the crescent limiting arm rotates around a support shaft lower than the two screws, the crescent limiting arm is pulled downward, and a load acts diagonally downward on the two screws lined up vertically, making the crescent receiver more likely to rotate and shift position.

In contrast, in the present invention, as shown in FIG. 4A, the second fastening through hole 86 is formed such that at least a portion of the hole is located between the upper end of the upper first fastening through hole 85 and the lower end of the lower first fastening through hole 85 in the vertical direction. As a result, at least a portion of the second fastening through hole 86 is located in the region R between the upper end of the upper first fastening through hole 85 and the lower end of the lower first fastening through hole 85 in the vertical direction, so that even if the crescent receiving portion 8 receives a load from the crescent limiting arm 9, a force in the rotation direction is unlikely to act, so the crescent receiving portion 8 is unlikely to rotate, and the position of the crescent receiving portion 8 can be reduced.

The open limit stopper 5 of this embodiment has two first fastening through holes 85 spaced apart vertically and a second fastening through hole 86 spaced apart in the viewing direction from the two first fastening through holes 85. The open limit stopper 5 is provided with a crescent receiving portion 8 fixed to the outer frame 43 of the outer screen 4 by a first fastening member 8a at the two first fastening through holes 85, a crescent limiting arm 9 rotatably connected to the crescent receiving portion 8 by a second fastening member 9a at the second fastening through hole 86, and a crescent portion 7 having an engaging portion 713 that can move between an engaging position that engages with the crescent limiting arm 9 and a non-engaging position that does not engage with the crescent limiting arm 9. The second fastening through hole 86 is formed so that at least a part of the hole is located between the upper end of the upper first fastening through hole 85 and the lower end of the lower first fastening through hole 85 in the vertical direction.

As a result, at least a portion of the second fastening through hole 86 is located between the upper end of the upper first fastening through hole 85 and the lower end of the lower first fastening through hole 85 in the vertical direction. Therefore, even if the crescent receiving part 8 receives a load from the crescent limiting arm 9, a force in the rotation direction is unlikely to act, so the crescent receiving part 8 is unlikely to rotate, and the position of the crescent receiving part 8 can be reduced.

In addition, in this embodiment, the second fastening through hole 86 is formed so as to be located below the center C between the two first fastening through holes 85 in the vertical direction. In addition, in this embodiment, the crescent limiting arm 9 is disposed below the two first fastening through holes 85 in the vertical direction. In this case, by forming the second fastening through hole 86 at a position below the center C between the two first fastening through holes 85, the rotational force of the crescent limiting arm 9 is less likely to act on the crescent receiving portion 8 than if the second fastening through hole 86 were formed at a position above the center between the two first fastening through holes 85. Therefore, the position of the crescent receiving portion 8 can be further reduced.

In addition, in this embodiment, the crescent receiving portion 8 is made of a single member. Conventionally, in consideration of the possibility of the crescent receiving portion shifting in position, the crescent receiving portion has been made of two members, allowing the position of the crescent receiving portion to be adjusted. In contrast, in the present invention, the crescent receiving portion 8 can be made of a single member by adopting a configuration that reduces the possibility of the crescent receiving portion 8 shifting in position. This allows the crescent receiving portion 8 to have a simple configuration, and also reduces manufacturing costs.

In this embodiment, the crescent portion 7 has a base portion 71 having a recess 711, a crescent body 72 attached to the base portion 71 so as to cover the recess 711, and a metallic crescent side fire spacer 73 that is disposed in the recess 711 and is thereby disposed between the base portion 71 and the crescent body 72. The recess 711 has an upper end groove 711a formed on the upper end side and a lower end groove 711c formed on the lower end side. The crescent side fire spacer 73 is U-shaped in cross section and has a plate-like portion 731 extending in the vertical direction, an upper end piece 732 formed on the upper end side of the plate-like portion 731 and insertable into the upper end groove 711a of the recess 711, and a lower end piece 733 formed on the lower end side of the plate-like portion 731 and insertable into the lower end groove 711c of the recess 711. As a result, the crescent side fire spacer 73 is formed in a U-shape in cross section, and can be temporarily fixed to the crescent body 72 by fitting it into the upper end groove 711a and the lower end groove 711c of the recess 711 of the crescent body 72. This improves the workability when attaching the crescent part 7 to the inner frame 33 of the inner screen 3.

In this embodiment, the engagement pin 713 is formed in a pin shape and can move between an engagement position where it protrudes from the crescent portion 7 and engages with the guide groove of the crescent limiting arm 9, and a non-engagement position where it is retracted toward the crescent portion 7 and retreats from the guide groove 931 of the crescent limiting arm 9. The engagement pin 713 has a large diameter base end thick diameter portion 713a formed on the crescent portion 7 side, a thin diameter portion 713c connected to the base end thick diameter portion 713a, capable of engaging with the guide groove 931 of the crescent limiting arm 9 and having a smaller diameter than the base end thick diameter portion 713a, and a tip portion 713d connected to the side of the thin diameter portion 713c opposite the base end thick diameter portion 713a and having a larger diameter than the thin diameter portion 713c. As a result, by making the diameter larger at the base end side thick diameter portion 713a, strength at the base end side is ensured, while by engaging the thin diameter portion at the thin diameter portion 713c with the guide groove 931, the guide groove 931 can be made narrower, allowing the width of the crescent limiting arm 9 to be formed narrower. Therefore, the crescent limiting arm 9 can be formed narrower, making it lighter and reducing material costs.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be modified as appropriate.
For example, in the above embodiment, two first fastening through holes 85 are provided, and the first fastening members 8a are fastened to each of the two first fastening through holes 85 to fix the crescent receiving portion 8 and the outer frame 43 (the outer frame side frame) of the outer frame 4 by the two first fastening members 8a, but this is not limited thereto, and three or more first fastening through holes 85 may be provided, and the first fastening members 8a may be fastened to each of the three or more first fastening through holes 85 to fix the crescent receiving portion 8 and the outer frame 43 of the outer frame 4 by three or more first fastening members 8a. When three or more first fastening through holes 85 are provided and fastened with three or more first fastening members 8a, the second fastening through hole 86 may be formed so as to be located between the lower end of the uppermost first fastening through hole 85 and the lower end of the lowermost first fastening through hole 85.

In addition, in the above embodiment, the second fastening through hole 86 formed in the crescent receiving portion 8 is disposed on the side of the lower first fastening through hole 85 of the two first fastening through holes 85 in the vertical direction, but this is not limited thereto, and for example, the second fastening through hole 86 formed in the crescent receiving portion 8 may be disposed in the center between the two first fastening through holes 85 in the vertical direction.

1. Doors and windows (sliding doors and windows)
2 Frame body 3 Inner screen 4 Outer screen 5 Opening limit stopper 7 Crescent part 8 Crescent receiving part 8a First fastening member 9 Crescent limiting arm 9a Second fastening member 33 Inner frame (inner screen side joining frame)
43. Outside frame (Outer shoji side frame)
71 Base portion 72 Crescent body 73 Crescent side fire spacer (spacer)
85 First fastening through hole 86 Second fastening through hole 711 Recess 711a Upper end groove 711c Lower end groove 713 Engagement pin (engagement portion)
713a: Base end side thick diameter portion 713c: Thin diameter portion 713d: Tip portion 731: Plate-shaped portion 732: Upper end piece 733: Lower end piece 931: Guide groove

Claims (5)

An opening limiting stopper for use in a sliding opening and closing type fixture having a frame body and an inner screen and an outer screen arranged to be relatively slidable within the frame body,
a crescent receiving portion having at least two first fastening through holes arranged vertically and spaced apart, and a second fastening through hole arranged at a position spaced apart in the front direction from the two first fastening through holes, the crescent receiving portion being fixed to the front side joint frame of the front screen of the front screen by a first fastening member at the two first fastening through holes, and having a protruding portion protruding outward from the front side joint frame of the front screen ...
a crescent limiting arm rotatably connected to the crescent receiving portion by a second fastening member in the second fastening through hole;
A crescent part is fixed to the inner screen side fitting frame of the inner screen and has an engagement part that can move between an engagement position where it engages with the crescent limiting arm and a non-engagement position where it does not engage with the crescent limiting arm,
The portions of the outer screen that are fixed by the first fastening member in the outer screen side joint frame of the outer screen are each formed with a horizontally elongated through hole extending in the horizontal direction,
The first fastening member is disposed through the first fastening through hole and the horizontally elongated through hole, and the crescent receiving portion is fixed to the outer screen side joint frame of the outer screen with the lateral mounting position of the crescent receiving portion adjusted relative to the outer screen side joint frame of the outer screen,
the second fastening through hole is formed such that at least a portion of the hole is located between an upper end of the upper first fastening through hole and a lower end of the lower first fastening through hole of the two first fastening through holes in the vertical direction ,
The crescent limiting arm is composed of a single member, and when the engagement portion is located in the engagement position, it is formed and arranged in a straight line extending at a downward slope from the second fastening through hole toward the crescent portion, and the downward slope of the lower end of the crescent limiting arm engages with the engagement portion of the crescent portion , an opening limiting stopper for sliding opening and closing type building fixtures. The opening limiting stopper for a sliding opening and closing type fixture described in claim 1, wherein the second fastening through hole is formed so as to be located lower than the center between the two first fastening through holes in the vertical direction. The opening limiting stopper for a sliding opening/closing fixture according to claim 1 or 2, in which the crescent receiving portion is made of a single member. The crescent portion includes a base portion having a recess, a crescent body attached to the base portion so as to cover the recess, and a metal spacer disposed in the recess and between the base portion and the crescent body,
The recess has an upper end groove formed on an upper end side and a lower end groove formed on a lower end side,
The spacer is an open-limiting stopper for a sliding opening/closing type building fixture as described in any one of claims 1 to 3, wherein the spacer has a plate-shaped portion formed in a U-shape in cross section and extending in the vertical direction, an upper end piece formed on the upper end side of the plate-shaped portion and capable of being inserted into the upper end groove of the recess, and a lower end piece formed on the lower end side of the plate-shaped portion and capable of being inserted into the lower end groove of the recess. The engaging portion is formed in a pin shape and can move between an engaging position where it protrudes from the crescent portion and engages with the guide groove of the crescent limiting arm, and a non-engaging position where it is retracted toward the crescent portion and retreats from the guide groove of the crescent limiting arm. The opening limiting stopper for a sliding opening/closing type fixture described in any one of claims 1 to 4 has a base end thick diameter portion formed on the crescent portion side and having a large diameter, a thin diameter portion connected to the base end thick diameter portion and capable of engaging with the guide groove of the crescent limiting arm and having a smaller diameter than the base end thick diameter portion, and a tip portion connected to the opposite side of the base end thick diameter portion in the thin diameter portion and having a larger diameter than the thin diameter portion.

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