TWI888842B - Movement restriction devices, doors and windows - Google Patents

Abstract

無。

Description

Movement restriction devices, doors and windows

The present invention relates to a movement limiting device for limiting the movement of door and window sashes such as screen doors and windows, and doors and windows.

Among the doors and windows in which the door and window sashes are slidably arranged on the side frame, there are doors and windows with movement restriction devices, which are used to restrict the movement of the door and window sashes. Such movement restriction devices are, for example, configured by providing a snap-fitting member on the longitudinal side frame constituting the side frame body, and providing a receiving member on the longitudinal frame constituting the door and window sashes, and by making the snap-fitting member snap-fit with the receiving member when the door and window sashes are arranged in the closed position, the door and window sashes are prevented from moving in the opening direction (for example, see patent document 1).

[Prior Art Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 2005-240285

When the position of the door and window sash in the depth direction relative to the side frame is correctly limited, the above-mentioned movement limiting device can engage the engaging member with the receiving member without any operation as long as the door and window sash is moved toward the closed position. However, in actual doors and windows, there is a situation where the door and window sash is offset in the depth direction relative to the side frame, so that the engaging member and the receiving member cannot be engaged when the door and window sash is arranged in the closed position. In particular, for the screen door and window that can be slidably arranged on the side frame, it is guided by the upper side frame and the lower side frame, and there is also a tendency to have lower rigidity than the door and window sash with glass plates, which makes the above-mentioned problem more significant.

In view of the above situation, the present invention aims to provide a movement limiting device and door and window that can more reliably limit the movement of door and window sashes.

In order to achieve the above-mentioned purpose, the movement restriction device of the present invention comprises: a locking member, which is installed on either one of the side frame and the door and window sash, and the door and window sash is configured to be movable relative to the side frame; and a receiving member, which is installed on the other of the side frame and the door and window sash, wherein the locking member and the receiving member are engaged with each other when the door and window sash is arranged in the closed position to restrict the door and window sash from moving in the opening direction relative to the side frame, and a positioning guide is provided on either one of the side frame and the door and window sash, and the positioning guide is abutted against the other when the door and window sash moves toward the closed position to position the door and window sash in the depth direction relative to the side frame.

According to the present invention, when the door and window sash is arranged in the closed position, the position of the door and window sash in the depth direction relative to the side frame is limited by the positioning guide, so even if the door and window sash is offset in the depth direction relative to the side frame, the offset can be corrected, and by moving the door and window sash to the closed position, the engaging member can be accurately engaged with the receiving member.

1: Movement restriction device

10: Border frame

11: Top border

11a: Upper rail

11b: Upper track for screen doors and windows

12: Bottom border

12a: Lower rail

12b: Lower track for screen doors and windows

13: Right vertical border

13a: Frame substrate

13b: Main view frame panel

13c: Screw penetration hole

14: Vertical border

20A: Interior door and window sash

20B: External doors and windows

21: Glass Plate

22: Upper frame

22a: Sliding guide groove

23: Lower frame

24: Vertical frame

25: Vertical frame

26: Door and window pulleys

30: Screen doors and windows

31: Gauze mesh components

32: Screen door and window upper frame

32a: Rail guides

33: Screen door and window lower frame

34: Right screen door and window vertical frame

34a: frame base

34b: Main viewing frame panel

34c: Stop surface

35: Screen door and window vertical frame

36: Door and window pulleys

40: Operation unit

41: Operation of the locking member (locking member)

41a: Sliding guide plate part

41b: Cover plate

41c: snap-fit plate

41d: Guide hole

41e: Mosaic plate part

41f: Connecting plate

41g: Guide cover plate

41h: Lower engaging tab

41j: Engagement guide surface

41k: snap-on face

41m: Upper engagement tab

42: Back panel

42a: screw hole

42b: fitting groove

43: Operation base

43a: Screw insertion hole

43b: Fitting recess

43c: Upper locking hook

44: Back panel cover (snapping cover)

44a: Lower locking hook

44b: Mosaic protrusion

44c: Outer surface

44d: Guided edge guard

44e: inclined guide surface

44f: Main view contact surface

45: Install screws

45a: shaft

46: Extension coil spring

50: Locking unit

51: Receiving components

51a: Sales guide department

51b: Spring support pin part

51c: receiving protrusion

51d: Accept the face

52: Protective cap

52a: receiving side guide surface

53: Lock cover

53a: Outer peripheral substrate part

53b: Side panel

53c: surrounding plate

53d: Bottom plate

53e: Insert opening

53f:Guide groove

53g: locking protrusion

53h: Screw insertion hole

54: Compression coil spring

55: Install screws

A: Arrow

B: Length direction

D: distance

d: size

α: angle

[Figure 1] is a diagram showing a door and window to which a movement restriction device according to an embodiment of the present invention is applied, and is a longitudinal cross-sectional view of a screen door and window arranged in an open position.

[Figure 2] is a cross-sectional view of the door and window shown in Figure 1.

[Figure 3] is a longitudinal cross-sectional view of the door and window shown in Figure 1 when the screen door and window is configured in the closed position.

[Figure 4] is a cross-sectional view of the door and window shown in Figure 3.

[Figure 5] is a three-dimensional diagram of the main parts of the door and window in the state shown in Figure 3, viewed from the indoor side.

[Figure 6] is a three-dimensional diagram of the main parts of the door and window in the state shown in Figure 1, viewed from the indoor side.

[Figure 7] is a three-dimensional diagram of the main parts of the door and window in the state shown in Figure 1, viewed from the outside.

[Figure 8] is an exploded perspective view of the operating unit of the movement restriction device applicable to the door and window shown in Figure 1, viewed from the indoor side.

[Figure 9] is an exploded perspective view of the operating unit of the movement restriction device shown in Figure 8 as viewed from the outdoor side.

[Figure 10] is a diagram of the operating unit shown in Figure 8 viewed from the outside, where (a) is a three-dimensional diagram of the exterior and (b) is a three-dimensional diagram showing the internal structure.

[Figure 11] is an enlarged cross-sectional view of the main part of the door and window shown in Figure 2.

[Figure 12] is a three-dimensional view of the latch unit of the movement restriction device applicable to the door and window shown in Figure 1, viewed from the outside.

[Figure 13] is a three-dimensional view of the latch unit shown in Figure 12 observed from the inner side of the frame.

[Figure 14] is an exploded three-dimensional view of the latch unit shown in Figure 12 viewed from the outside.

[Figure 15] is a diagram showing the main parts of the movement restriction device applicable to the door and window shown in Figure 1, and is a schematic diagram showing the movement states of the engaging member and the receiving member when the screen door and window slides toward the closed position relative to the side frame in sequence from (a) to (d).

[Figure 16] is a diagram schematically showing the main parts of the movement restriction device applicable to the door and window shown in Figure 1, and is a cross-sectional view of the main parts showing the movement state of the engaging member and the receiving member when the screen door and window slides toward the closed position relative to the side frame body from (a) to (d) in sequence.

The following is a detailed description of the preferred implementation forms of the movement restriction device and doors and windows of the present invention with reference to the drawings. In addition, for convenience, the terms "depth direction" and "main view direction" are sometimes used for explanation below. The depth direction refers to the direction along the depth direction of the door and window as shown by the arrow A in the figure. For the surface along the depth direction, it can be called the depth surface. The main view direction refers to the vertical direction orthogonal to the depth direction for the case where the lower frame extends in the horizontal direction. For the case where the vertical frame extends in the vertical direction, the horizontal direction orthogonal to the depth direction is called the main view direction. For the surface along the main view direction, it can be called the main view surface.

Fig. 1 to Fig. 4 show a door and window to which the movement restriction device of the embodiment of the present invention is applied. The door and window illustrated here is called a two-way sliding window, which has an inner door and window sash 20A on the indoor side and an outer door and window sash 20B on the outdoor side in the side frame body 10, and a screen door and window (door and window sash) 30 is provided in the part closer to the outdoor side than the outer door and window sash 20B. The side frame body 10 is constructed by assembling a frame around an upper side frame 11, a lower side frame 12, a right vertical side frame 13, and a vertical side frame 14. The inner door and window sash 20A and the outer door and window sash 20B are constructed by installing an upper frame 22, a lower frame 23, and left and right vertical frames 24, 25 around a quadrilateral glass plate 21, respectively. By rotatably arranging the door and window pulley 26 provided on the lower frame 23 on the lower guide rail 12a of the lower side frame 12, and arranging the upper guide rail 11a of the upper side frame 11 on the sliding guide groove 22a of the upper frame 22, the above-mentioned door and window sashes 20A and 20B are configured to be able to slide along the length direction of the lower side frame 12. In the illustrated example, the side frame body 10, the inner door and window sash 20A, and the outer door and window sash 20B are configured so that when the outer door and window sash 20B moves to the left side end (the closed position of the outer door and window sash 20B) and the inner door and window sash 20A moves to the right side end (the closed position of the inner door and window sash 20A) when viewed from the indoor side, the opening of the side frame body 10 can be closed.

The gauze door and window 30 is formed by installing a gauze door and window upper frame 32, a gauze door and window lower frame 33, a right gauze door and window vertical frame 34, and a gauze door and window vertical frame 35 around a quadrilateral gauze mesh member 31, and its size is configured to be between the vertical frame 25 at the joint of the outer door and window sash 20B arranged in the closed position between the upper side frame 11 and the lower side frame 12, and the vertical side frame (side frame profile: hereinafter referred to as the right vertical side frame 13) located on the right side when viewed from the indoor side. The gauze door window 30 is configured to be able to slide along the length direction of the lower frame 12 by rotatably arranging the door window pulley 36 provided on the gauze door window lower frame 33 on the gauze door window lower rail 12b provided on the lower frame 12, and engaging the rail guide 32a provided on the gauze door window upper frame 32 with the gauze door window upper rail 11b provided on the upper frame 11.

In the door and window having the above structure, a movement restriction device 1 is provided between the side frame body 10 and the gauze door and window 30. More specifically, as shown in FIGS. 1 to 7 , the movement restriction device 1 for preventing the gauze door and window 30 from unintentionally sliding in the opening direction (moving on its own) is formed between the right longitudinal side frame 13 of the side frame body 10 and the gauze door and window longitudinal frame (a profile for door and window sash: hereinafter referred to as the right gauze door and window longitudinal frame 34) located on the right side when viewed from the indoor side of the gauze door and window 30. In this embodiment, the movement restriction device 1 is provided at the substantially central position of the right longitudinal side frame 13 and the right gauze door and window longitudinal frame 34 in the height direction. The following describes the structure of the movement restriction device 1, including the detailed structure of the right vertical frame 13 and the right screen door and window vertical frame 34. In addition, for the sake of convenience in the following description, the directions of the various components of the movement restriction device 1 are defined by the posture after being installed on the right vertical frame 13 and the right screen door and window vertical frame 34.

The right longitudinal frame 13 of the frame body 10 and the right screen door and window longitudinal frame 34 of the screen door and window 30 are extruded profiles formed of metal such as aluminum alloy or resin, and are respectively configured to have substantially the same cross-sectional shape along the entire length along the longitudinal direction B (vertical direction). The right longitudinal frame 13 includes: a flat frame base plate portion 13a extending in the depth direction; and a flat main view frame plate portion 13b extending from the edge of the frame base plate portion 13a on the outdoor side in the main view direction. The position of the main view frame plate portion 13b in the depth direction is set to be substantially the same as the upper rail 11b for the gauze door and window of the upper frame 11 and the lower rail 12b for the gauze door and window of the lower frame 12, and the main view frame plate portion 13b has a portion protruding from the frame base plate portion 13a toward the inner peripheral side. The right gauze door and window vertical frame 34 has: a frame base portion 34a, which is hollow and cylindrical; and two main view frame plate portions 34b, which extend from two corners of the frame base portion 34a located on the outer peripheral side toward the outer peripheral side. The main view frame plate portion 34b is formed with a stopper surface 34c at the portions facing each other. The stopper surface 34c is formed to face the frame base portion 34a by providing a protrusion on the inner surfaces of the main view frame plate portion 34b facing each other. As shown in FIG. 2 , in this embodiment, the frame body 10 and the gauze door and window 30 are configured such that when the door and window pulley 36 of the gauze door and window lower frame 33 is arranged on the gauze door and window lower rail 12b of the lower frame 12 and the rail guide 32a of the gauze door and window upper frame 32 is engaged with the gauze door and window upper rail 11b of the upper frame 11, the frame base 34a is arranged on the outdoor side relative to the main frame plate 13b.

As shown in FIGS. 5 to 7 , the movement restriction device 1 is configured to have an operating unit 40 and a latch unit 50. In this embodiment, the operating unit 40 is mounted on the inner peripheral portion of the main viewing frame plate portion 13b of the right vertical frame 13, and the latch unit 50 is mounted on the frame base 34a of the right screen door and window vertical frame 34 between the two main viewing frame plates 34b. The operating unit 40 is configured to have an operating engaging member (engaging member) 41, a back plate 42, an operating base 43 and a back plate cover (engaging cover body) 44, and the latch unit 50 is configured to have a receiving member 51, a protective cap 52 and a latch cover 53.

As shown in Figures 8 to 10, the operating engaging member 41 of the operating unit 40 is formed by appropriately bending a metal plate, and has: a sliding guide plate portion 41a, which is arranged on the main viewing surface of the main viewing frame plate portion 13b facing the indoors; and a cover plate portion 41b and an engaging plate portion 41c, which are arranged on the outdoor side of the main viewing frame plate portion 13b.

The sliding guide plate portion 41a is formed into a longitudinal flat plate extending in the main viewing direction along the length direction of the right longitudinal frame 13, and has a guide hole 41d and a fitting plate portion 41e at both the upper and lower ends. The guide hole 41d is formed into a long hole extending in the length direction of the right longitudinal frame 13, and is arranged in parallel at the edge of the outer peripheral side of the sliding guide plate portion 41a. The fitting plate portion 41e is arranged in a flat plate shape at the end of the sliding guide plate portion 41a, and is configured to protrude further toward the indoor side relative to the sliding guide plate portion 41a.

The cover plate portion 41b extends toward the outside of the room from the approximately central portion of the sliding guide plate portion 41a in the vertical direction in the depth direction, and is formed into a flat plate having a width greater than the dimension of the right screen door and window vertical frame 34 in the depth direction. In the illustrated example, the sliding guide plate portion 41a and the cover plate portion 41b are connected to each other through a connecting plate portion 41f arranged to bypass the inner peripheral side of the main view frame plate portion 13b. That is, the connecting plate portion 41f protrudes toward the outside of the room from the approximately central portion of the edge portion of the sliding guide plate portion 41a located on the inner peripheral side, passes over the main view frame plate portion 13b, and then bends, and extends toward the outer peripheral side in a manner that is approximately parallel to the sliding guide plate portion 41a. The cover plate portion 41b extends from the edge of the outer peripheral side of the connecting plate portion 41f to protrude outdoors. A guide cover plate portion 41g is provided at the edge of the cover plate portion 41b located on the outdoor side. The guide cover plate portion 41g is inclined relative to the sliding guide plate portion 41a in a manner that gradually approaches the inner peripheral side toward the outdoors.

The engaging plate portion 41c is formed into a substantially rectangular flat plate extending from the approximately central portion between the sliding guide plate portion 41a and the guide cover plate portion 41g in the cover plate portion 41b toward the inner peripheral side, and is arranged to be approximately parallel to the sliding guide plate portion 41a. The extending edge of the engaging plate portion 41c is provided with a downward engaging protrusion portion 41h protruding downward.

The lower engaging protrusion 41h and the engaging plate 41c are arranged on the same flat plate, and as shown in FIG15, the edge of the inner peripheral side thereof has an engaging guide surface 41j, and the edge of the outer peripheral side thereof has an engaging surface 41k. The engaging guide surface 41j is inclined relative to the lead vertical direction in a manner that gradually approaches the outer peripheral side as it moves downward. The engaging surface 41k can extend along a substantially lead vertical direction. In addition, an upper engaging protrusion 41m is arranged upwardly on the extended edge of the engaging plate 41c in a manner that is symmetrical with the lower engaging protrusion 41h. The upper engaging protrusion 41m is inverted when the operating engaging member 41 is arranged on the longitudinal frame 14 located on the left side of the frame body 10 when viewed from the indoor side, and is used to function as the lower engaging protrusion 41h described later.

As shown in Figures 8 to 10, the back plate 42 is disposed between the main viewing surface of the main viewing frame plate portion 13b facing the outdoors and the connecting plate portion 41f of the operating engaging member 41, and is formed into a plate having approximately the same upper and lower dimensions as the sliding guide plate portion 41a of the operating engaging member 41. The upper and lower ends of the back plate 42 are both provided with screw holes 42a and fitting grooves 42b. The screw holes 42a can be screwed with the shaft 45a of the mounting screw 45 passing through the guide hole 41d of the sliding guide plate portion 41a, and are arranged in parallel up and down at approximately the same spacing as the guide hole 41d. The fitting groove 42b is a groove-shaped notch formed along the upper and lower end surfaces of the back plate 42. Like the operating engaging member 41, the back plate 42 is integrally formed from a metal plate.

The operating base 43 is arranged on the front view surface of the front view frame plate portion 13b facing the interior of the room in a state of covering the sliding guide plate portion 41a of the operating engaging member 41, and the operating base 43 is formed of resin. The operating base 43 is provided with a screw insertion hole 43a and a fitting recess 43b at both upper and lower ends, and an upper locking hook portion 43c is provided at the approximately central portion in the vertical direction. The screw insertion hole 43a is a through hole in the shape of an elongated hole provided at a portion corresponding to the guide hole 41d of the operating engaging member 41. The fitting recess 43b is a recessed portion into which the fitting plate portion 41e of the sliding guide plate portion 41a can fit when the operating base 43 and the sliding guide plate portion 41a are facing each other with the screw insertion hole 43a and the guide hole 41d facing each other. The upper locking hook portion 43c protrudes toward the outside of the room from the inner peripheral side portion of the surface of the operating base 43 facing the outside of the room in the depth direction and then protrudes in both the upper and lower directions.

The back plate cover 44 is arranged on the front view surface of the front view frame plate portion 13b facing the outside of the room in a state where it covers the back plate 42 at the inner peripheral side relative to the cover plate portion 41b, and the back plate cover 44 is formed of resin like the operation base 43. The back plate cover 44 is provided with a lower locking hook portion 44a, and a fitting protrusion 44b is provided at both upper and lower ends. The lower locking hook portion 44a protrudes toward the room from the inner peripheral side portion of the surface of the back plate cover 44 facing the room in the depth direction, and then bends downward, and is formed at a portion lower than the upper locking hook portion 43c of the operation base 43. The engaging protrusion 44b is engaged with the engaging groove 42b of the back plate 42 when overlapped on the back plate 42, so that the back plate cover 44 is supported on the back plate 42. In addition, a lower locking hook 44a is also provided in the upper part of the back plate cover 44 at a position symmetrical to the lower locking hook 44a. The lower locking hook 44a provided at the upper part plays a role when the operating unit 40 is provided on the longitudinal frame 14 located on the left side of the frame body 10 when viewed from the indoor side.

As shown in Figures 7, 9 to 11, the outer surface 44c of the back panel cover 44 facing the outside is formed into a roughly flat surface along the main viewing direction, and its upper and lower ends are respectively provided with two guide baffles 44d. The guide baffles 44d are protrusions extending along the sliding direction of the screen door and window 30, and are formed integrally with the back panel cover 44. Each guide baffle 44d has an inclined guide surface 44e and a main viewing abutment surface 44f. The inclined guide surface 44e is a portion inclined in a manner that gradually protrudes toward the outside from the inner peripheral side toward the outer peripheral side. In the illustrated example, the inclined guide surface 44e is formed to form an acute angle α with the outer surface 44c of the back panel cover 44. The front view contact surface 44f is a portion extending along the front view direction and is arranged to be connected to the portion of the inclined guide surface 44e that protrudes most toward the outside. The front view contact surface 44f is arranged such that when the back panel cover 44 is mounted on the front view frame plate portion 13b of the right longitudinal frame 13, the dimension of the distance from the surface of the engaging plate portion 41c facing the outside is a distance D.

In order to install the operating unit 40 having the above structure to the right vertical frame 13, two upper and lower screw penetration holes 13c are formed in advance at the position where the operating unit 40 is installed in the main viewing frame plate 13b. The screw penetration hole 13c has a size that the shaft 45a of the mounting screw 45 screwed into the screw hole 42a of the back plate 42 can penetrate, and is pre-set at the edge of the inner peripheral side of the main viewing frame plate 13b with the same spacing as the screw hole 42a.

First, the back plate 42 is overlapped on the main viewing surface of the main viewing frame plate portion 13b facing the outside, and further, the operation engaging member 41 is arranged on the right vertical frame 13 in a state where the main viewing frame plate portion 13b and the back plate 42 are arranged between the sliding guide plate portion 41a and the connecting plate portion 41f. In this state, the mounting screw 45 is screwed into the screw hole 42a of the back plate 42 through the screw insertion hole 43a of the operating base 43, the guide hole 41d of the sliding guide plate portion 41a and the screw through hole 13c of the main viewing frame plate portion 13b, thereby enabling the operation engaging member 41 and the operating base 43 to be mounted on the main viewing frame plate portion 13b of the right vertical frame 13. These operation engaging members 41 and the operation base 43 can move up and down relative to the mounting screw 45 within the range of the screw insertion hole 43a and the guide hole 41d, thereby moving up and down relative to the right longitudinal frame 13. In this embodiment, a tension coil spring 46 is provided between the lower locking hook 44a of the back plate cover 44 mounted on the back plate 42 and the upper locking hook 43c of the operation base 43. According to the spring force of the tension coil spring 46, the operation engaging member 41 and the operation base 43 are always in a state of being urged downward. In order to mount the back plate cover 44 on the back plate 42, it is sufficient to fit the fitting protrusion 44b into the fitting groove 42b respectively. In the operating unit 40 installed on the right vertical frame 13 in the above-mentioned manner, when the screen door 30 is slid in a manner close to the right vertical frame 13, the engaging plate portion 41c is located between the two main viewing frame plate portions 34b of the right screen door 34.

As shown in FIGS. 12 to 14 , the receiving member 51 of the latch unit 50 is formed in a block shape of a generally quadrangular prism extending vertically, and has a guide pin portion 51a on the side surface portion located indoors and the side surface portion located outdoors, respectively, and has a spring support pin portion 51b on the lower surface portion. The guide pin portion 51a is formed in a cylindrical shape extending in the depth direction, and is disposed on portions coaxially with each other, and protrudes from the side surface portion indoors and the side surface portion outdoors, respectively. The spring support pin portion 51b is formed in a cylindrical shape extending downwardly in a generally vertical direction. In addition, the receiving member 51 is provided with a receiving protrusion 51c on the upper surface portion. The receiving protrusion 51c protrudes upward from the edge of the receiving member 51 located on the outer peripheral side, and has a receiving surface 51d on the inner peripheral side. The receiving surface 51d is a plane extending in the depth direction along the substantially vertical direction, and is configured to have a greater depth dimension than the engaging plate portion 41c. The above-mentioned receiving member 51 is integrally formed by die-casting using a metal such as an aluminum alloy as a material.

The protective cap 52 is a resin member provided to cover the outer surface of the receiving member 51. In the example shown in the figure, the protective cap 52 is configured to cover the receiving member 51 with the guide pin portion 51a, the spring support pin portion 51b and the receiving surface portion 51d exposed to the outside. The portion of the protective cap 52 covering the outer peripheral side of the receiving protrusion 51c is provided with a receiving side guide surface 52a. The receiving side guide surface 52a is a plane inclined relative to the length direction B of the right screen door vertical frame 34 in a manner that gradually approaches the inner peripheral side as it goes upward.

The latch cover 53 accommodates the receiving member 51 in a state where the protective cap 52 is installed so as to be movable in the up-down direction. The latch cover 53 is configured to have an outer peripheral substrate portion 53a, two side plate portions 53b, two peripheral plate portions 53c and a bottom plate portion 53d. The outer peripheral substrate portion 53a is formed into a substantially rectangular flat plate shape and extends in the depth direction along the up-down direction. The upper half of the outer peripheral substrate portion 53a is provided with an insertion opening 53e with an upper end opening. The insertion opening 53e is used to expose the receiving side guide surface 52a of the protective cap 52 to the outside of the latch cover 53, and is configured to have a larger dimension in the depth direction than the engaging plate portion 41c. When the latch unit 50 is installed in a state where it is positioned on the right screen door and window vertical frame 34, the insertion opening 53e is set so that the dimension d between the opening edge located on the outdoor side and the main view surface of the right screen door and window vertical frame 34 facing the indoor is greater than the above-mentioned distance D (the dimension of the main view abutment surface 44f from the surface of the engaging plate portion 41c facing the outdoor). The side plate portion 53b extends from the two side edges of the outer peripheral substrate portion 53a toward the inner peripheral side in a manner that is substantially parallel to each other, and a storage space for the receiving member 51 is formed between the side plate portion 53b and the outer peripheral substrate portion 53a. The distance between the outer surfaces of the two side plate portions 53b is set so that they can be embedded between the two main view frame plate portions 34b of the right screen door and window vertical frame 34. The side plate portion 53b is formed with guide grooves 53f along the upper and lower sides, and a locking protrusion 53g is formed on the outer surface of each side plate portion 53b. The guide groove 53f is formed to have a width that allows the guide pin portion 51a of the receiving member 51 to be inserted, and by cooperating with the guide pin portion 51a, it plays a role in guiding the receiving member 51 to move up and down relative to the side plate portion 53b. When the latch cover 53 is arranged between the two main view frame plate portions 34b of the right screen door and window vertical frame 34, the locking protrusion 53g is in contact with the locking surface 34c provided on the main view frame plate portion 34b. The peripheral plate portion 53c extends in a curved manner from the portion of the outer peripheral substrate portion 53a that is lower than the side plate portion 53b and gradually approaches each other toward the inner peripheral side. When the receiving member 51 is arranged between the side plate portions 53b, the peripheral plate portion 53c is arranged on a circumference centered on the axis of the spring support pin portion 51b. The bottom plate portion 53d extends approximately horizontally from the lower edge of the outer peripheral substrate portion 53a toward the inner peripheral side, then bends approximately straight downward, and has a screw insertion hole 53h in the portion extending downward.

In order to install the latch unit 50 having the above structure to the right screen door and window vertical frame 34, the receiving member 51 is placed between the side plate portions 53b of the latch cover 53 with the protective cap 52 installed in advance, and the guide pin portions 51a are respectively arranged in the guide grooves 53f, so that it is configured to be movable in the vertical direction relative to the latch cover 53. In this embodiment, the compression coil spring 54 is interposed between the lower surface of the receiving member 51 and the bottom plate portion 53d of the latch cover 53. Due to the spring force of the compression coil spring 54, the receiving member 51 is always in a state of being urged upward relative to the latch cover 53. The compression coil spring 54 can exert force on the receiving member 51 without falling off by arranging the spring support pin portion 51b of the receiving member 51 at the upper end and arranging the lower end between the peripheral plate portion 53c and the outer peripheral base plate portion 53a of the latch cover 53. In this state, the latch cover 53 is arranged between the two main frame plate portions 34b of the right screen door and window vertical frame 34, and further, the mounting screw 55 is screwed into the frame base portion 34a through the screw insertion hole 53h of the bottom plate portion 53d, so that the latch unit 50 can be installed on the right screen door and window vertical frame 34. In the latch unit 50 installed on the right screen door vertical frame 34, the locking protrusion 53g provided on the side plate portion 53b abuts against the locking surface 34c of the main viewing frame plate portion 34b, preventing the latch cover 53 from moving toward the outer peripheral side relative to the right screen door vertical frame 34. The height of the mounting latch unit 50 is set so that when the screen door 30 is slid in a manner close to the right vertical side frame 13, the locking guide surface 41j of the locking protrusion portion 41h provided below the locking plate portion 41c abuts against the receiving side guide surface 52a of the protective cap 52.

According to the door and window equipped with the above-mentioned movement limiting device 1, starting from the state shown in (a) of Figure 15, when the screen door and window 30 is slid toward the direction close to the right longitudinal frame 13, as shown in (b) of Figure 15, the engaging guide surface 41j of the engaging protrusion portion 41h arranged below the engaging plate portion 41c becomes in abutment with the receiving side guide surface 52a of the protective cap 52. When the screen door 30 is further slid toward the right longitudinal frame 13 from this state, as shown in FIG. 15 (c), based on the tilting action of the engaging guide surface 41j and the receiving side guide surface 52a, the operating engaging member 41 and the receiving member 51 resist the spring force of the tension coil spring 46 and the compression coil spring 54, and move appropriately in the up and down directions in a manner of being separated from each other. In this embodiment, the spring constant of the compression coil spring 54 is set to be larger than that of the tension coil spring 46, so the operating engaging member 41 of the operating unit 40 moves upward.

When the screen door 30 continues to slide so that the contact state between the engaging guide surface 41j and the receiving side guide surface 52a is released, as shown in (d) of Figure 15, based on the spring force of the tension coil spring 46 and the compression coil spring 54, the operating engaging member 41 and the receiving member 51 move toward each other in the up-down direction, and the engaging surface 41k and the receiving surface 51d are opposite to each other (the closed position of the screen door 30). In this way, the screen door 30 can be prevented from sliding in the opening direction unintentionally in this state.

If the screen door 30 is to be slid in the opening direction from the above state, the operating base 43 is moved upward relative to the right longitudinal frame 13 by resisting the spring force of the tension coil spring 46, and the operating engaging member 41 is moved upward relative to the receiving member 51, so that the receiving surface 51d of the receiving member 51 and the engaging surface 41k of the operating engaging member 41 are in a non-opposing state. In this way, as long as an operating force is applied to the screen door 30 in this state, the screen door 30 can be slid in the opening direction relative to the frame body 10.

Here, as shown in FIG. 16 (a), in a state where the central portion of the right screen door and window vertical frame 34 is offset toward the indoor side relative to the side frame body 10 and the main surface of the right screen door and window vertical frame 34 facing the indoor side is located on the indoor side of the outer surface 44c of the back plate cover 44 facing the outdoor side, even if the screen door and window 30 is directly slid toward the closing direction, as shown by the double-dotted line in FIG. 16 (a), the engaging plate portion 41c abuts against the outer peripheral base plate portion 53a of the latch cover 53, making it difficult to abut the lower engaging protruding piece portion 41h of the engaging plate portion 41c against the receiving side guide surface 52a. However, in the above-mentioned door and window, the outer surface 44c of the back plate cover 44 is provided with a guide stop 44d, so there is no need to worry about the above-mentioned problem. That is, even when the right gauze door and window vertical frame 34 is offset to the indoor side, if the gauze door and window 30 is slid in the closing direction, as shown in FIG. 16 (b) and FIG. 16 (c), the main view frame plate portion 34b of the right gauze door and window vertical frame 34 located on the indoor side abuts against the inclined guide surface 44e of the guide stop 44d, and based on its tilting effect, the position of the right gauze door and window vertical frame 34 is corrected to the outdoor side, and arrives at a position abutting against the main view abutting surface 44f of the guide stop 44d. As a result, the lower engaging protrusion 41h of the engaging plate portion 41c is guided to the insertion opening 53e and abuts against the receiving side guide surface 52a, so that the engaging surface 41k and the receiving surface 51d are in a state of facing each other as shown in (d) of FIG. 16 .

Furthermore, in the above-mentioned embodiment, the example of the gauze door and window 30 is shown as the door and window sash, but it is not limited to the gauze door and window 30. Furthermore, the example of the door and window sash sliding in the left-right direction is shown, but it can also be applied to the door and window moving up and down. Furthermore, the movement restriction device 1 is set between the right vertical side frame 13 and the right gauze door and window vertical frame 34 on the right side when viewed from the indoor side. Of course, the movement restriction device 1 can also be set between the left vertical side frame 14 and the left gauze door and window vertical frame 35. As the applicable movement restriction device 1, it is not limited to the example of the embodiment. As long as the engaging member and the receiving member engage with each other, it is not necessary to have the protective cap 52 and the like. Furthermore, a locking member is provided on the side frame and a receiving member is provided on the door and window sash, but the arrangement may also be reversed.

In the above-mentioned embodiment, the example of the guide stopper 44d is shown as the positioning guide, so it has the advantages of being able to reduce the contact area when the door and window sash is switched and being able to prevent the increase of the operating force, but it is not necessarily necessary to constitute the positioning guide with the stopper. Furthermore, the positioning guide is configured to have a front view abutment surface 44f, so it can prevent the door and window sash from loosening in the depth direction when it is arranged in the closed position, but it is not necessarily necessary to have a front view abutment surface. Furthermore, the positioning guide is provided in the structural element of the movement restriction device 1, but the positioning guide can also be provided on the side frame or the door and window sash as a component separate from the movement restriction device 1.

As described above, the movement restriction device of the present invention comprises: a locking member, which is mounted on either one of the side frame and the door and window sash, and the door and window sash is configured to be movable relative to the side frame; and a receiving member, which is mounted on the other of the side frame and the door and window sash, wherein the locking member and the receiving member are engaged with each other when the door and window sash is arranged in the closed position, thereby restricting the door and window sash from moving in the opening direction relative to the side frame, and either one of the side frame and the door and window sash is provided with a positioning guide, and the positioning guide is abutted against the other when the door and window sash moves toward the closed position, thereby positioning the door and window sash in the depth direction relative to the side frame.

According to the present invention, when the door and window sash is arranged in the closed position, the position of the door and window sash in the depth direction relative to the side frame is limited by the positioning guide, so even if the door and window sash is offset in the depth direction relative to the side frame, the offset can be corrected, and by moving the door and window sash to the closed position, the engaging member can be accurately engaged with the receiving member.

Furthermore, in the above-mentioned movement limiting device of the present invention, the aforementioned positioning guide has an inclined guide surface, and the position of the aforementioned inclined guide surface in the depth direction relative to the movement direction of the aforementioned door and window sash gradually changes.

According to the present invention, the position of the door and window sash can be smoothly corrected by tilting the guide surface.

Furthermore, in the above-mentioned movement restriction device of the present invention, the positioning guide has a main view abutment surface, the main view abutment surface extends along the main view direction and is connected to the inclined guide surface, and when the door and window sash moves toward the closed position, the positioning guide abuts against the other of the side frame and the door and window sash in the order of the inclined guide surface and the main view abutment surface.

According to the present invention, it is possible to prevent the door and window sashes from loosening in the depth direction when the door and window sashes are arranged in a closed position.

Furthermore, in the above-mentioned movement restriction device of the present invention, the above-mentioned engaging member has an engaging cover body, and the above-mentioned positioning guide is integrally provided on the outer surface of the above-mentioned engaging cover body.

According to the present invention, the positioning guide is integrated with the locking cover, thereby avoiding an increase in the number of components.

Furthermore, in the above-mentioned movement limiting device of the present invention, the above-mentioned positioning guide is composed of a plurality of guide edges extending along the movement direction of the above-mentioned door and window sash.

According to the present invention, the contact area when performing switch operations on door and window sashes can be reduced.

Furthermore, in the door and window of the present invention, the aforementioned engaging member of the aforementioned movement limiting device is arranged on the profile for the door and window sash constituting the aforementioned door and window sash, and the aforementioned receiving member is arranged on the profile for the side frame constituting the aforementioned side frame body.

According to the present invention, by engaging the engaging member provided on the door and window sash with the receiving member provided on the side frame, the movement of the door and window sash in the opening direction can be restricted.

1: Movement limiting device 13: Right vertical frame 13a: Frame base plate 13b: Main view frame plate 34: Right screen door and window vertical frame 34a: Frame base 34b: Main view frame plate 34c: Stop surface 40: Operation unit 41: Operation snap-fit member (snap-fit member) 41c: Snap-fit plate 41g: Guide cover plate 41h: Lower snap-fit tab 42: Back plate 44: Back plate cover (snap-fit cover) 44c: Outer surface 44d: Guide stopper 50: Latch unit 51: Receiving member 52: Protective cap 53: Latch cover 53e: Insertion opening A: Arrow B: Length direction

Claims (4)

A movement limiting device, characterized in that it has: a locking member, which is installed on either a side frame or a door and window sash, the door and window sash being configured to be movable relative to the side frame; and a receiving member, which is installed on the other of the side frame and the door and window sash, wherein the locking member and the receiving member are engaged with each other when the door and window sash is arranged in a closed position, thereby limiting the movement of the door and window sash in an opening direction relative to the side frame, a positioning guide is provided on either the side frame or the door and window sash, and the positioning guide is abutted against the other when the door and window sash moves toward the closed position, thereby positioning the door and window sash in a depth direction relative to the side frame, The positioning guide has an inclined guide surface, and the position of the inclined guide surface in the depth direction relative to the moving direction of the door and window sash gradually changes. The positioning guide has a main view abutment surface, and the main view abutment surface extends along the main view direction and is connected to the inclined guide surface. When the door and window sash moves toward the closed position, the positioning guide abuts against the side frame and the other of the door and window sash in the order of the inclined guide surface and the main view abutment surface. When the door and window sash is arranged in the closed position, either the side frame or the door and window sash is in a position abutting against the main view abutment surface. The movement restriction device as described in claim 1, wherein the aforementioned engaging member has an engaging cover, and the aforementioned positioning guide is integrally provided on the outer surface of the aforementioned engaging cover. The movement limiting device as described in claim 2, wherein the positioning guide is composed of a plurality of guide edges extending along the movement direction of the door and window sash. A door and window, characterized in that the aforementioned engaging member of the movement restriction device described in any one of claim 1 to claim 3 is arranged on the profile for the door and window sash constituting the aforementioned door and window sash, and the aforementioned receiving member is arranged on the profile for the side frame constituting the aforementioned side frame body.

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