Fitting

Abstract

To restrict sliding of a sash without requiring a complicated operation.SOLUTION: A fitting comprises: an inner sash 20A slidably supported in a frame body 10; and a stopper 42 installed on an aspect face of the inner sash 20A so as to move forward and backward. When the stopper 42 is moved forward and the inner sash 20A is made to slide in an opening direction, the stopper 42 is brought into contact with an edge face of an outer sash 20B via a tip part, restricting the sliding of the inner sash 20A. A pressing spring 46 is provided that biases the stopper 42 in a forward-moving direction. A roller 48 is provided on the tip part of the stopper 42 which, when the stopper 42 is moved forward in a state of being disposed in a position opposing a surface of the outer sash 20B, can be brought into contact with the surface.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a fitting having a shoji screen slidably supported on a frame body. [Background technology]

[0002] In fittings such as sliding windows in which a shoji screen is supported slidably relative to a frame, in addition to a locking device such as a crescent lock, a slide limiting device for limiting the sliding is provided. In fittings equipped with a slide limiting device, for example, a stopper is provided on the bottom frame of the outer shoji screen so that it can move forward and backward, and by maintaining the stopper in the advanced state, it is possible to limit the sliding of the inner and outer shoji screens (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-360312 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned fixtures, a locking operation using a key is required to keep the stopper in the advanced position. This not only makes the operation of restricting the sliding of the shoji complicated, but also makes it difficult to restrict the sliding of the shoji if the locking operation is forgotten.

[0005] In view of the above circumstances, the present invention aims to provide a fitting that can limit the sliding of a shoji screen without requiring complicated operations. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the building fixture of the present invention comprises a shoji screen supported slidably on a frame body, and a stopper arranged so as to be able to move back and forth on the visible surface of the shoji screen, and when the shoji screen is slid in the opening direction with the stopper advanced, the stopper abuts against the end surface of the abutted member via its tip, thereby restricting the sliding of the shoji screen, and is characterized in that it comprises a biasing member that biases the stopper in the advancing direction, and the tip of the stopper is provided with a rolling body that can abut against the surface when the stopper is advanced while positioned opposite the surface of the abutted member. [Effects of the Invention]

[0007] According to the present invention, the stopper is biased in the forward direction by the biasing member, so the sliding of the shoji screen can be restricted without complicated operations. Moreover, because the stopper is provided with a rolling element, there is no risk of damaging the abutted member even if the shoji screen is slid with the stopper abutting the surface of the abutted member. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the fitting according to the first embodiment of the present invention as seen from inside the room. [Figure 2] FIG. 2 is a cross-sectional view of the fitting shown in FIG. 1 with the inner and outer shoji screens positioned in their respective closed positions. [Figure 3] FIG. 2 is an exploded perspective view of a slide limiting device applied to the fitting shown in FIG. 1. [Figure 4] 4 is an exploded perspective view of a case and a stopper of the slide limiting device shown in FIG. 3. FIG. [Figure 5] FIG. 4 is an exploded perspective view of a release unit of the slide limiting device shown in FIG. 3. [Figure 6] This shows a slide limiting device to be applied to the fitting shown in Figure 1, where (a) is a cross-sectional view of the main part when the stopper has advanced from the shoji screen, and (b) is a cross-sectional view of the main part when the stopper has retracted and is housed in the shoji screen. [Figure 7]FIG. 2 is a cross-sectional view of the fitting shown in FIG. 1 with the stopper advanced and the inner shoji screen slid open. [Figure 8] FIG. 2 is a cross-sectional view of the fitting shown in FIG. 1 with the stopper retracted and the inner shoji screen slid in the opening direction. [Figure 9] This is a cross-sectional view of the fitting shown in Figure 1 in a state where the stopper has advanced and moved forward while facing the outer shoji screen. [Figure 10] FIG. 10 is a cross-sectional view of the state in which the inner shoji screen has been slid in the closing direction from the state shown in FIG. 9. [Figure 11] This is a cross-sectional view of the state in which the inner shoji screen has been slid further in the closing direction from the state shown in Figure 10. [Figure 12] This is a cross-sectional view of a fixture according to embodiment 2 of the present invention, with the inner and outer shoji screens positioned in their respective closed positions. [Figure 13] FIG. 13 is a cross-sectional view of the fitting shown in FIG. 12 with the inner and outer shoji screens positioned in their respective open positions. [Figure 14] This shows the grooves and slide limiting device of the fixture shown in Figure 12, where (a) is an enlarged plan view when they are separated from each other, and (b) is a plan view when the circumferential surface of the rolling body and the abutment portion are simultaneously abutting against the two opening edges of the groove. [Figure 15] FIG. 13 is a longitudinal cross-sectional view of the main part of the fitting shown in FIG. [Figure 16] FIG. 16 is an exploded perspective view of the release unit of the slide limiting device shown in FIG. 15. DETAILED DESCRIPTION OF THE INVENTION

[0009] Preferred embodiments of the fittings according to the present invention will be described in detail below with reference to the accompanying drawings. Note that, for convenience, the terms "invisible direction" and "visible direction" will be used below. The "invisible direction" is the direction along the depth of the fittings, as indicated by arrow A in the drawings. A surface along the invisible direction will be referred to as a "visible face." The "visible direction" is the direction perpendicular to the invisible direction in the case of an object that extends horizontally, such as a sill. In the case of an object that extends vertically, such as a vertical frame, the "visible direction" is the horizontal direction perpendicular to the invisible direction. A surface along the invisible direction will be referred to as a "visible face."

[0010] (Embodiment 1) Figures 1 and 2 show a fitting according to a first embodiment of the present invention. The fitting illustrated here is a sliding window comprising a frame 10 and an inner shoji screen 20A and an outer shoji screen 20B slidably supported on the frame 10. The frame 10 is constructed by assembling an upper frame 11, a lower frame 12, and vertical frames 13 on the left and right sides. The vertical frames 13 of the frame 10 are constructed with an exterior metal frame portion 13M made of a metal such as an aluminum alloy and a resin frame portion 13P made of resin. Both the metal frame portion 13M and the resin frame portion 13P are extruded members, each with a substantially uniform cross-sectional shape along its entire length. Although not shown in the figures, the upper frame 11 and the lower frame 12, like the vertical frame 13, each have a metal frame portion and a resin frame portion.

[0011] The inner shoji screen 20A and the outer shoji screen (contact member) 20B are constructed by connecting an upper frame 23 between the upper ends of left and right vertical frames 21, 22, respectively, and connecting a lower frame 24 between the lower ends of the vertical frames 21, 22, to form a frame body, and supporting a panel 25 such as double-glazed glass inside the frame body. The vertical frames 21, 22 that make up the shoji screens 20A, 20B are each constructed with metal frame portions 21M, 22M on the outdoor side, molded from a metal such as an aluminum alloy, and resin frame portions 21P, 22P molded from resin. The metal frame portions 21M, 22M and the resin frame portions 21P, 22P are all extruded shapes, and each is constructed so that the entire longitudinal length has a substantially uniform cross-sectional shape. Although not shown in the figure, the upper and lower frames 23 and 24 are also constructed with metal frame portions and resin frame portions, similar to the vertical frames 21 and 22.

[0012] As is clear from Figure 2, the left and right vertical frames 21, 22 are configured to have larger dimensions along the front direction than the bottom frame 24, and are connected to the bottom frame 24 in a state where they overlap the front surface of the bottom frame 24. In other words, the front surfaces of the vertical frames 21, 22 facing the interior and the exterior of the room both protrude beyond the front surface of the bottom frame 24, and a step d is created between each of them and the bottom frame 24.

[0013] The inner shoji 20A and the outer shoji 20B are configured to be large enough to block the opening of the frame body 10 when placed in the closed position. In the illustrated example, when viewed from inside the room, the left side is the closed position of the outer shoji 20B, and the right side is the closed position of the inner shoji 20A. A crescent lock 30 is provided between the vertical frame 22 that serves as the mating frame for the outer shoji 20B and the vertical frame 22 that serves as the mating frame for the inner shoji 20A, which prevents the inner shoji 20A and the outer shoji 20B from sliding in the opening direction when the locking operation is performed while they are placed in the closed position.

[0014] In addition, a slide limiting device 40 is provided on the bottom frame (first frame) 24 of the inner shoji 20A. The slide limiting device 40 is intended to limit the sliding of the inner shoji 20A and outer shoji 20B even when the crescent lock 30 is in the unlocked state. In other words, the slide limiting device 40 limits the sliding of the inner shoji 20A and outer shoji 20B in the opening direction when the lock is in the locked state, while when the lock is in the released state, it releases the slide limit of the inner shoji 20A and outer shoji 20B so that they can be opened to their fully open positions. The structure of the slide limiting device 40 will be explained below. As shown in Figures 3 to 6, the slide limiting device 40 is configured with a case 41, a stopper 42, and a release unit 43.

[0015] The case 41 has a case body 41a in the shape of a hollow rectangular parallelepiped with one side open. A flange 41b is integrally formed on the case body 41a around the opening. In this embodiment 1, the case 41 is configured so that it is long horizontally with its long side aligned with the extension direction of the bottom frame 24, and the short side dimension of the flange 41b along the top and bottom is smaller than the dimension along the view direction of the bottom frame 24. A pin insertion hole 41c is provided in the bottom wall of the case 41 in a portion located on the door edge side of the inner shoji screen 20A (on the right side when viewed from inside the room). This case 41 has flange 41b abutting the visible surface of the lower frame 24 facing the outside, and a back plate 44 is arranged in the hollow part of the lower frame 24 at the part corresponding to both ends of the flange 41b, and by screwing screw member N1 into the back plate 44 via the flange 41b and the lower frame 24, it is attached to the lower frame 24 of the inner shoji screen 20A with the opening of the case body 41a facing the outside through the stopper opening 24a of the lower frame 24. The position at which the case 41 is attached is a position where there is a gap between the vertical frame 22 that is the mating joint of the outer shoji screen 20B when the inner shoji screen 20A is placed in the closed position.

[0016] The stopper 42 is sized to fit inside the case 41 and is rotatably supported on the case 41 via a support shaft 45 extending vertically. The support shaft insertion hole 42a, in which the support shaft 45 is located, is closer to the base end than the longitudinal center of the stopper 42. In the illustrated example, the support shaft 45 is located near the vertical stile 21 (on the right side as viewed from inside the room) that forms the door edge of the inner shoji screen 20A, and the stopper 42 is configured so that it can be housed inside the case 41 by rotating counterclockwise around the support shaft 45. On the other hand, when the stopper 42 rotates clockwise around the support shaft 45, it gradually tilts outward toward the vertical stile 22 (on the left side as viewed from inside the room) that forms the door edge of the inner shoji screen 20A, in other words, toward the vertical stile 22 that forms the end face of the outer shoji screen 20B when it is in the closed position. The protruding dimension of stopper 42 toward the outside of the room is restricted by the base end abutting against the inner bottom surface of case 41. In this embodiment 1, the protruding dimension of stopper 42 is set so that the tip of stopper 42 is positioned opposite vertical frame 22 of outer screen 20B when it is in the closed position. A pressure spring (biasing member) 46 is provided between stopper 42 and case 41. Pressure spring 46 is interposed between the part of stopper 42 that is closer to the tip than support shaft 45 and case 41, and constantly biases the tip of stopper 42 in the direction of advancing relative to case 41. The base end of stopper 42 is always positioned opposite pin insertion hole 41c of case 41, regardless of the rotational position of stopper 42.

[0017] An abutment body 47 and a roller (rolling body) 48 are disposed at the tip of the stopper 42. The abutment body 47 and the roller 48 are supported at the tip of the stopper 42 via roller shafts 49 that extend vertically. The abutment body 47 forms a flat abutment surface 47a at the tip of the stopper 42 and is disposed in a state in which it cannot move relative to the stopper 42. In this embodiment 1, as shown in FIG. 6(a), when the tip of the stopper 42 protrudes most toward the outside, the abutment surface 47a is disposed so as to face the vertical stile 22 side (left side as viewed from the inside of the room) that is the contact point of the inner shoji screen 20A, in other words, the vertical stile 22 of the outer shoji screen 20B that is disposed in the closed position, and the abutment body 47 is disposed on the stopper 42 so that the abutment surface 47a is approximately vertical along the projection direction. As shown in Figure 6(b), a contact body 47 is provided on the stopper 42 so that when the stopper 42 is in a position housed in the case 41, the contact body 47 is retracted toward the interior of the room relative to the visible surface of the lower frame 24 facing the outside of the room. The roller 48 is provided on the stopper 42 so that a portion of its circumferential surface always protrudes toward the exterior of the room relative to the stopper 42 and the contact body 47, regardless of the position of the stopper 42. The roller 48 is provided on the stopper 42 so that when the stopper 42 is in a position housed in the case 41, the roller 48 is positioned on approximately the same plane as the visible surface of the case 41 facing the outside of the room.

[0018] As shown in Figures 3, 5, and 6, the release unit 43 is configured to include a unit main body 51, a push pin 52, and a release part 53. The unit main body 51 has an insertion hole 51a at one end and a pin accommodating hole 51b at the other end. The insertion hole 51a is a void having a horizontally elongated slit-like cross section and opens to one end surface of the unit main body 51. The pin accommodating hole 51b has a circular cross section and opens to the other end surface of the unit main body 51. The insertion hole 51a and the pin accommodating hole 51b communicate with each other inside the unit main body 51 with their axes aligned. The opening of the pin accommodating hole 51b is configured to have a diameter smaller than the inner diameter of the interior. This unit body 51 is attached to the lower frame 24 of the inner shoji screen 20A by screwing the screw member N2 through the lower frame 24 with the opening of the pin accommodating hole 51b facing the pin insertion hole 41c of the case 41 and the opening of the insertion hole 51a opening into the room through the part insertion hole 24b of the lower frame 24. As shown in Figure 5, in embodiment 1, the unit body 51 is made up of two parts: the part insertion body 51c and the pin accommodating body 51d.

[0019] The push pin 52 has a cylindrical pin body 52a with a flange 52b at the base end. The pin body 52a has a diameter smaller than the opening of the pin receiving hole 51b. The flange 52b has a diameter larger than the opening of the pin receiving hole 51b but smaller than the interior of the pin receiving hole 51b. The push pin 52 is disposed in the pin receiving hole 51b with the tip of the pin body 52a facing outside. The axial dimension of the push pin 52 is set so that when the flange 52b abuts against the end face of the component insert body 51c, the tip protrudes from the opening of the pin receiving hole 51b to the outside of the unit body 51 and is exposed inside the case 41 through the pin insertion hole 41c. A retraction spring 54 is provided around the pin body 52a between the flange 52b and the pin receiving body 51d to constantly urge the push pin 52 to be received in the pin receiving hole 51b. When the push pin 52 is advanced in the protruding direction from the unit body 51 against the spring force of the retraction spring 54, the base end of the stopper 42 is pressed, and the stopper 42 can be accommodated inside the case 41 against the spring force of the pressure spring 46.

[0020] As shown in FIG. 6 , the release part 53 has a flat plate shape with a narrower tip end than a base end. More specifically, the release part 53 has a width dimension such that the tip end can be inserted into the insertion hole 51a from one end face of the unit body 51, but the base end cannot be inserted into the insertion hole 51a. The longitudinal dimension of the base end is set so that even when inserted into the insertion hole 51a and abutted against the end face of the part insert body 51c, it protrudes from the visible surface facing the interior of the lower frame 24. The tip end of the release part 53 has a width dimension such that it can be inserted into the pin receiving hole 51b. The longitudinal dimension of the tip end is set so that when inserted into the pin receiving hole 51b via the insertion hole 51a, it presses against the base end of the stopper 42, allowing the tip end of the stopper 42 to be received in the case 41.

[0021] In the fittings configured as described above, even when the crescent lock 30 is in the unlocked state, unless the release part 53 is inserted into the release unit 43, the spring force of the pressure spring 46 will maintain the tip of the stopper 42 in its most protruding position toward the outside, as shown in Figure 2. Therefore, even if the inner shoji screen 20A and the outer shoji screen 20B are slid open from this state, as shown in Figure 7, the abutment body 47 provided at the tip of the stopper 42 will abut against the vertical frame 22 that is the mating joint of the outer shoji screen 20B via the abutment surface 47a, preventing further sliding in the opening direction.

[0022] On the other hand, when the release part 53 is inserted into the release unit 43, the stopper 42 can be housed in the case 41, as shown in Figure 8. Therefore, when the inner shoji 20A and the outer shoji 20B are slid while maintaining this state, the tip of the stopper 42 can slide to the fully open position without coming into contact with the vertical frame 22 that joins the outer shoji 20B.

[0023] Here, as shown in Figure 9, when at least one of the inner shoji 20A and the outer shoji 20B slides from the closed position in the opening direction and the operating force of the release part 53 is removed when the stopper 42 is positioned opposite the outer shoji 20B, the push pin 52 retracts due to the spring force of the retraction spring 54, and the tip of the stopper 42 is maintained in the advancing direction due to the spring force of the pressure spring 46. Therefore, if the inner shoji 20A and the outer shoji 20B are slid toward the closed position from this state, they will return to the state shown in Figure 2. This makes it possible to limit the sliding of the inner shoji 20A and the outer shoji 20B without any further operation, making it possible to prevent the inner shoji 20A and the outer shoji 20B from accidentally moving to the fully open position without the need for complicated operations.

[0024] Moreover, as shown in Figure 9, when sliding the inner shoji 20A or the outer shoji 20B, the peripheral surface of the roller 48 disposed at the tip of the stopper 42 abuts against the bottom frame (second frame) 24 of the outer shoji 20B, so that the roller 48 rolls appropriately, and there is no risk of scratches or other damage to the visible surface of the bottom frame 24. In addition, in the outer shoji 20B, the visible surfaces of the vertical frames (third frames) 21, 22 protrude beyond the visible surface of the bottom frame 24, but as shown in Figures 10 and 11, even when passing over the step d from the bottom frame 24 to the vertical frames 21, 22, there is no risk of damage to the visible surfaces of the vertical frames 21, 22, because the peripheral surface of the roller 48 abuts against the respective visible surfaces without direct contact with the stopper 42 or abutment body 47.

[0025] (Embodiment 2) 12 and 13 show a fitting according to a second embodiment of the present invention. The fitting illustrated here, like the first embodiment, is called a sliding window, which comprises a frame 10, an inner shoji screen 20A, and an outer shoji screen (contact member) 20B supported so as to be able to slide left and right relative to the frame 10. The fitting differs from the first embodiment in the configuration of the vertical frame 21 that forms the door edge of the outer shoji screen 20B, and the detailed configuration of the slide limiting device 40. Below, the differences from the first embodiment will be mainly described, and the same components as those in the first embodiment will be designated by the same reference numerals and detailed explanations will be omitted.

[0026] In the outer sash 20B of embodiment 2, a groove 120 is provided on the front surface facing the room of the resin frame portion 21P of the vertical frame 21. The groove 120 also functions as a handle when opening and closing the outer sash 20B and is provided along the entire length of the vertical frame 21, from top to bottom. More specifically, the groove 120 extends in the front direction so that the left and right inner walls 120a, 121a are parallel to each other. The two opening edges 120b, 121b on the left and right of the groove 120 are located on the same plane along the front direction. As shown in Figure 14, the relationship between the width dimension w of the groove 120 along the left and right and the dimensions of the abutment (abutment portion) 47 and roller (rolling element) 48 provided on the stopper 42 is set as described below. That is, the abutment body 47 and roller 48 of the stopper 42 can simultaneously abut against the two opening edges 120b, 121b of the groove 120, and at this time, the abutment surface 47a of the abutment body 47 is set to be located on the indoor side with respect to the sight surface that passes through the opening edge 120b located on the door edge side. Also, the abutment surface 47b of the abutment body 47 that abuts against the opening edge 120b of the groove 120 is inclined so that it gradually faces indoors toward the door edge side when the abutment body 47 and roller 48 are simultaneously abutting against the two opening edges 120b, 121b. In the illustrated example, the width dimension w along the left and right of the groove 120 is configured to be approximately the same as the outer diameter dimension of the roller 48.

[0027] On the other hand, in the slide limiting device 40 applied to the fitting of embodiment 2, as shown in Figures 15 and 16, an airtight material 55 is attached to the push pin 52 of the release unit 43 attached to the bottom frame 24 of the inner shoji screen 20B. The airtight material 55 is made of an elastic material such as resin and is molded to have a circular ring-shaped cross section, and is attached to an attachment groove 52c provided on the circumferential surface of the pin body 52a. The airtight material 55 is provided at a position facing the inner circumferential surface of the pin receiving hole 51b provided in the unit body 51 when the push pin 52 is in a retracted state by the retraction spring 54. In the figures, symbol 24M denotes the metal frame portion of the bottom frame 24, and symbol 24P denotes the resin frame portion of the bottom frame 24.

[0028] Even in the fittings of embodiment 2 configured as described above, unless the release part 53 is inserted into the release unit 43, the spring force of the pressure spring (biasing member) 46 keeps the tip of the stopper 42 in the most protruding position toward the outside, as shown in Figure 12. Therefore, when the inner shoji screen 20A and the outer shoji screen 20B are slid in the opening direction from this state, even if the crescent lock 30 is in the unlocked state, the abutment body 47 provided at the tip of the stopper 42 will abut against the vertical frame 22, which is the mating joint of the outer shoji screen 20B, via the abutment surface 47a before they reach the fully open position, thereby preventing further sliding in the opening direction.

[0029] On the other hand, when the release part 53 is inserted into the release unit 43, the stopper 42 can be accommodated in the case 41, so that the tip of the stopper 42 and the vertical frame 22 that connects the outer shoji screen 20B can be slid to the fully open position without coming into contact with each other. When the operating force of the release part 53 is removed when the stopper 42 is in a position facing the outer shoji screen 20B, the spring force of the pressure spring 46 keeps the tip of the stopper 42 moved in the forward direction, so that when the inner shoji screen 20A and the outer shoji screen 20B are slid toward the closed position, they will return to the state shown in Figure 12. This makes it possible to restrict the sliding of the inner shoji screen 20A and the outer shoji screen 20B without any further operation.

[0030] 13, if the vertical frame 21 that forms the door edge of the outer shoji 20B slides past the vertical frame 22 that forms the mating joint of the inner shoji 20A, the roller 48 of the stopper 42 may reach the groove 120. However, in this fixture, the width dimension w along the left and right of the groove 120 and the dimensions of the abutment body 47 and roller 48 provided on the stopper 42 are configured to satisfy the above-mentioned conditions, so the abutment surface 47a of the abutment body 47 does not enter the groove 120. Moreover, the abutment surface 47b of the abutment body 47 that abuts against the opening edge 120b of the groove 120 is inclined gradually toward the door edge so as to be inward of the room when the abutment body 47 and roller 48 are simultaneously abutting against the two opening edges 120b, 121b. As a result, although part of the roller 48 will enter the groove 120, there is no risk of the abutment surface 47a getting caught on the opening edge 120b of the groove 120, and the relative movement of the inner shoji screen 20A and the outer shoji screen 20B can continue as is.

[0031] Furthermore, in the fixture of embodiment 2, an airtight material 55 is provided around the push pin 52, so that when the inner shoji screen 20A and the outer shoji screen 20B are each placed in the closed position and the release part 53 is not inserted, it is possible to prevent ventilation between the inside and outside of the room through the pin accommodating hole 51b.

[0032] While the above-described embodiment illustrates a sliding window with an inner shoji screen 20A and an outer shoji screen 20B, it can also be applied to a single-sliding window in which one shoji screen is fixed or a single-sliding window with a single shoji screen. In the former, the fixed shoji screen serves as the abutting member, while in the latter, the abutting member is the wall or panel that overlaps the shoji screen in the open position. The sliding direction of the shoji screen is not necessarily left-right, but can also be up-down. Furthermore, while the stopper 42 in the sliding window is provided so as to protrude from the bottom stile 24 of the inner shoji screen 20A toward the outside, it is also possible to provide the stopper 42 so as to protrude from the bottom stile 24 of the outer shoji screen 20B toward the inside. In this case, the release unit 43 and release part 53 are not necessarily required. Furthermore, the bottom stile and vertical stile of the shoji screen do not necessarily have to have a metal stile and a resin stile; they can be formed solely of metal or resin.

[0033] In addition, in the above-described embodiment, rollers 48 are used as examples of rolling bodies, but other rolling bodies such as spheres may be used as long as they roll when the shoji screen is slid. Although a separate abutting body 47 is provided at the tip of stopper 42 to form a contact surface 47a with the abutted member, stopper 42 may also be used as an abutting part and directly abut against the abutted member.

[0034] Furthermore, in the above-described embodiment, stopper 42 is rotatably supported via support shaft 45 and protrudes in an inclined position, but stopper 42 does not need to move forward by rotating, and does not need to assume an inclined position when moved forward. Furthermore, although pressure spring 46, which is a coil spring, is exemplified as the biasing member, other biasing members such as a torsion coil spring or a leaf spring may also be used.

[0035] Furthermore, in the above-described second embodiment, the two opening edges 120b, 121b are positioned on the same plane along the find direction, but this is not necessarily limited to this. For example, the groove may be configured so that the opening edge on the door edge side protrudes further into the room than the opening edge on the door edge side. Even in this case, as long as the circumferential surface of the rolling element and the abutting body can abut against the two opening edges of the groove simultaneously, and the abutting surface is located on the outer side of the groove relative to the find direction that passes through the opening edge on the door edge side, the same effects as those of the second embodiment can be achieved.

[0036] As described above, the building fixture of the present invention comprises a shoji screen supported slidably on a frame body, and a stopper arranged so as to be able to move back and forth on the visible surface of the shoji screen, and when the shoji screen is slid in the opening direction with the stopper advanced, the stopper abuts against the end surface of the abutted member via its tip, thereby restricting the sliding of the shoji screen, and is characterized in that it comprises a biasing member that biases the stopper in the advancing direction, and the tip of the stopper is provided with a rolling body that can abut against the surface when the stopper is advanced while positioned opposite the surface of the abutted member. According to this invention, the stopper is biased in the forward direction by the biasing member, so the sliding of the shoji screen can be restricted without complicated operations. Moreover, because the stopper is provided with a rolling element, there is no risk of damaging the abutted member even if the shoji screen is slid with the stopper abutting the surface of the abutted member.

[0037] Furthermore, the present invention is characterized in that, in the above-mentioned fixture, the base end of the stopper is rotatably supported via a support shaft, and when it moves forward and backward relative to the shoji screen, it assumes an inclined position so as to gradually protrude toward the end face of the abutted member. According to this invention, the stopper is in an inclined position when advanced, so that the stopper does not get in the way when the shoji screen is slid toward the closed position.

[0038] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the shoji screens are slidably arranged on the outside and inside of the frame, and one of the shoji screens is provided with a stopper that makes the other shoji screen the abutting member. According to this invention, it is possible to restrict the sliding of the sliding window relative to the shoji screen.

[0039] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the stopper is provided on a first frame that is longitudinal along the sliding direction of one of the shoji screens, at a portion that corresponds to a second frame that is longitudinal along the sliding direction of the other shoji screen, and restricts the sliding of one of the shoji screens by abutting against the end face of the other shoji screen. According to this invention, when the shoji screen is slid, the stopper abuts against the second frame of the other shoji screen, so there is no risk of damaging the glass or other panel on the other shoji screen.

[0040] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the other shoji screen has a third frame arranged in a direction perpendicular to the second frame and overlapping the visible surface of the second frame, and the rolling body protrudes from the stopper so as to be able to abut against the step between the second frame and the third frame. According to this invention, the rolling body abuts even when passing over the step between the second and third frames, so there is no risk of the sliding of the shoji screen being hindered.

[0041] Furthermore, the present invention is characterized in that in the above-mentioned fitting, the stopper is maintained in a retracted state against the biasing force of the biasing member when the release part is inserted. According to this invention, the sliding restriction on the shoji screen can be released by inserting the release part, so that a stopper can be arranged so that the shoji screen moves forward and backward from the part facing the outside of the room, which is advantageous in terms of appearance quality.

[0042] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the stopper restricts the sliding of the shoji screen by abutting against the end surface located on the joining side of the other shoji screen via the abutment surface of the abutment portion provided at the tip, and the surface of the other shoji screen facing the one shoji screen at the door edge has grooves along the top and bottom, and the rolling body and the abutment portion are capable of abutting against the two opening edges of the groove simultaneously with the circumferential surface of the rolling body and the abutment portion, and when the circumferential surface of the rolling body and the abutment portion abut against the two opening edges of the groove, the abutment surface is located on the outside of the groove with respect to the visible surface that passes through the opening edge on the door edge side. According to this invention, for example, if a door fixture is provided with a groove that serves as a handle, and two shoji screens are each positioned in an open position, even if the stopper and rolling body pass through the groove, the contact surface will not enter the inside of the groove, and each can be moved to the fully open position without getting caught.

[0043] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the abutment portion abuts against the opening edge of the groove simultaneously with the circumferential surface of the rolling body via an abutment surface, and the abutment surface is inclined so as to gradually move away from the other shoji screen toward the opening edge on the door tip side when it abuts against the opening edge of the groove simultaneously with the circumferential surface of the rolling body. According to this invention, since the abutment surface is inclined, the tilting action makes it possible to easily open the shoji screen to the fully open position.

[0044] Furthermore, the present invention is characterized in that, in the above-mentioned fittings, the shoji screen is provided with a push pin that presses and retracts the stopper when the release part is inserted, the push pin is arranged so that it can move back and forth in a pin accommodating hole provided in the unit body, and an airtight material is provided between the pin accommodating hole and the peripheral surface of the push pin. According to this invention, it is possible to prevent ventilation between the inside and outside of the room through the gap between the push pin and the pin receiving hole of the unit body. [Explanation of symbols]

[0045] 10 Frame body, 20A, 20B Shoji, 21, 22 Vertical frame, 24 Bottom frame, 40 Slide limiting device, 41 Case, 41a Case body, 41b Flange, 41c Pin insertion hole, 42 Stopper, 42a Support shaft insertion hole, 43 Release unit, 44 Back plate, 45 Support shaft, 46 Press spring, 47 Abutment body, 47a Abutment surface, 47b Abutment surface, 48 Roller, 49 Roller shaft, 51 Unit body, 51a Insertion hole, 51b Pin receiving hole, 51c Part insertion body, 51d Pin receiving body, 52 Push pin, 52a Pin body, 52b Flange, 53 Release part, 54 Retraction spring, 55 Airtight material, 120 Groove, 120b, 121b Opening edge, d Step

Claims

1. A fitting comprising a shoji screen slidably supported on a frame body and a stopper disposed on the front surface of the shoji screen so as to be able to advance and retreat, and when the shoji screen is slid in the opening direction with the stopper advanced and moved forward, the stopper abuts the end surface of the abutting member via the tip end, thereby restricting the sliding of the shoji screen. a biasing member that biases the stopper in an advancing direction; A fixture characterized in that the tip of the stopper is provided with a rolling element that can abut against the surface when the stopper is moved forward while positioned opposite the surface of the abutted member.

2. The fixture described in claim 1, characterized in that the base end of the stopper is rotatably supported via a support shaft, and when it moves forward and backward relative to the shoji screen, it assumes an inclined position so as to gradually protrude toward the end face of the abutted member.

3. The building fixture described in claim 1, characterized in that the shoji screens are slidably arranged on the outside and inside of the frame, and one of the shoji screens is provided with a stopper that serves as the abutting member for the other shoji screen.

4. The stopper is provided on a first frame that is longitudinal along the sliding direction of one of the shoji screens, at a portion corresponding to a second frame that is longitudinal along the sliding direction of the other shoji screen, and limits the sliding of the one of the shoji screens by abutting against the end face of the other shoji screen.

5. The other shoji screen has a third frame arranged along a direction perpendicular to the second frame and overlapping the facing surface of the second frame, The fixture according to claim 4, characterized in that the rolling element protrudes from the stopper so as to be able to abut against the step between the second stile and the third stile.

6. The fixture according to claim 1, wherein the stopper is maintained in a retracted state against the biasing force of the biasing member when the release part is inserted.

7. The stopper restricts the sliding of the shoji by contacting the end surface of the other shoji screen located on the joining side through the contact surface of the contact portion provided at the tip end, The surface of the other shoji door facing the one shoji door at the door edge of the other shoji door is provided with a concave groove along the top and bottom, The building fixture described in claim 3, characterized in that the rolling body and the abutment portion are capable of simultaneously abutting the two opening edges of the groove, and when the rolling body's peripheral surface and the abutment portion abut against the two opening edges of the groove, the abutment surface is located on the outer side of the groove relative to the visible surface that passes through the opening edge on the door tip side.

8. the abutment portion abuts against the circumferential surface of the rolling element and the opening edge of the recessed groove simultaneously via an abutment surface, The fixture described in claim 7, characterized in that the abutment surface is inclined so as to gradually move away from the other shoji screen toward the opening edge on the door tip side when it abuts against the opening edge of the groove simultaneously with the circumferential surface of the rolling body.

9. The shoji screen includes a push pin that presses and retracts the stopper when the release part is inserted, The push pin is arranged in a pin receiving hole provided in the unit body so as to be able to advance and retreat, 7. The fixture according to claim 6, wherein an airtight material is provided between the pin receiving hole and the peripheral surface of the push pin.

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