JP2009215711A - Fitting for folding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fittings for a folding door capable of opening, closing, and moving the folding door smoothly while maintaining the proper running property of the folding door in a folded condition. <P>SOLUTION: The lower fitting 23 for a lower side part 12a of a frame 12 among frame side fittings 15 connected turnably with door side fitting 14 is provided with a roller 33 rolling on a lower rail 17 and a guide roller 34 fitted movably into a guide groove 37 to guide the roller 33 along the lower rail 17. The upper fitting 24 for an upper side part 12b of the frame 12 is provided with a slide roller 47 fitted movably into the inside of an upper rail 18 and a stopper 105 for regulating upward travel of the folding door 11 for the frame 12 to prevent the guide roller 34 from leaving the guide groove 37. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a folding door fitting for movably and rotatably attaching an end of a folding door to a frame.

The folding door device is folded when the door is opened, and is often used as, for example, a closet door or a room partition door.
This folding door device has an inset type and an outset type. Among these, the inset type is a type in which the folding door 1 is housed in a frame 2 as shown in FIG. As shown in FIG. 5, the set type is a type in which the folding door 11 is attached to the outer front side (lower side in the figure) of the frame 12.

  FIG. 6 shows the metal fitting 13 conventionally used for the outset type folding door apparatus. The metal fitting 13 is for attaching the left and right and upper and lower end portions 11a of the folding door 11 to the frame 12 so as to be movable and turnable. The metal fitting 13 is respectively separated from the door-side metal fitting 14 and a separate frame side. It comprises a metal fitting 15 and a connecting mechanism 16 that connects these metal fittings 14 and 15 so as to be rotatable.

  The folding door 11 is formed by connecting two door plates 11b with a plurality of hinges 11c so that they can be folded and unfolded. Further, a lower rail 17 extending in the left-right direction of the frame 12 is attached to the lower side portion 12a (the sill portion, see FIGS. 10 and 14) of the frame 12, and the upper side portion 12b (the head portion, FIG. 10 and 14), an upper rail 18 extending in the left-right direction of the frame 12 is attached.

As shown in detail in FIG. 7, the door-side metal fitting 14 has a cylindrical portion 20 inserted into a hole 19 formed on the back side of the end portion 11 a of the folding door 11, and the flange portion 21 is connected to the end of the folding door 11 at the upper and lower portions thereof. It attaches to the part 11a with a screw 22.
The frame-side metal fitting 15 includes a lower metal fitting 23 attached to the lower side portion 12a (lower rail 17) of the frame 12, and an upper metal fitting 24 attached to the upper side portion 12b (upper rail 18) of the frame 12.

  As shown in FIG. 8, the lower metal fitting 23 includes a main body member 25 and a traveling member 26. On both left and right sides of the main body member 25, fitting grooves 27 that are substantially orthogonal to the extending direction of the lower rail 17 (left and right direction of the frame 12) and extend in the horizontal direction are provided. A plurality of screws 28 that are temporarily screwed in a direction substantially parallel to the extending direction of the lower rail 17 (in this case, two screws are arranged on both the left and right sides, and only two on the front side are shown in FIG. 8) are attached. ing.

  Further, a through hole 29 that penetrates through the main body member 25 in the vertical direction is formed in the front and rear direction (extending direction of the fitting groove 27) and the left and right direction of the main body member 25. The adjustment bolt 30 longer than the vertical dimension of the main body member 25 is inserted in the vertical direction. A lower end portion of the adjustment bolt 30 (a portion protruding from the lower surface of the main body member 25) is screwed into a screw hole 31 provided on the upper surface of the traveling member 26. A spring 32 is interposed between the main body member 25 and the traveling member 26. A C ring 69 larger than the diameter of the through hole 29 between the spring 32 and the main body member 25 is formed on the adjusting bolt 30 as a restricting means for restricting the downward movement of the main body member 25. It fits into the notch groove 30a. As the restricting means, an E ring may be used instead of the C ring 69, or a nut larger than the diameter of the through hole 29 is screwed onto the adjusting bolt 30 to be connected to the spring 32 and the main body. You may make it fix between the members 25. FIG.

With such a configuration, the traveling member 26 is biased downward (on the lower rail 17 side) by the spring 32.
The lower metal fitting 23 can change the distance (the vertical dimension of the lower metal fitting 23) between the main body member 25 and the traveling member 26 by appropriately adjusting the screwing amount of the adjusting bolt 30. When 30 is loosened, the height of the main body member 25 with respect to the traveling member 26 increases, and when the adjustment bolt 30 is tightened, the height decreases.

  The traveling member 26 is provided with a plurality of (in this case, four) rollers 33 that rotate in the horizontal axis and a plurality of (in this case, two) guide rollers 34 that rotate in the vertical axis. The rollers 33 are arranged in pairs (two pairs in this case) on the left and right side surfaces of the traveling member 26, and each pair is provided on both the front and rear sides of the lower rail 17 and the extending direction of the lower rail 17. Are mounted so as to be capable of rolling on two long rolling surfaces 35 (see FIG. 10). That is, the lower metal member 23 of the frame side metal member 15 is formed in a rolling form in which the roller 33 rolls on the rolling surface 35 of the lower rail 17.

The guide roller 34 is disposed on the lower surface of the protrusion 36 provided at the left and right ends of the traveling member 26. These guide rollers 34 are provided between the two rolling surfaces 35 of the lower rail 17 and are movably fitted inside guide grooves 37 (see FIG. 10) that are fully open on the upper surface and are long in the extending direction of the lower rail 17. Is done.
Also, columnar protrusions 38 having a substantially cross-shaped cross section when viewed in the vertical direction are provided on the left and right sides of the upper surface of the traveling member 26, and these columnar protrusions 38 are provided at the lower portions on the left and right sides of the main body member 25. It is inserted into the hole 39.

  On the other hand, the upper metal fitting 24 is composed of a main body member 40 and a traveling member 41 as shown in FIG. On the left and right sides of the main body member 40, similarly to the main body member 25 described above, fitting grooves 27 and screws 28 (only two on the front side are shown in FIG. 9) are provided. Further, a through hole 42 penetrating through the main body member 40 in the vertical direction is formed at substantially the center in the front-rear direction and the left-right direction of the main body member 40. The vertical direction of the main body member 40 is formed in the through hole 42. An adjustment bolt 43 longer than the dimension is inserted in the vertical direction. An upper end portion of the adjustment bolt 43 (a portion protruding from the upper surface of the main body member 25) is screwed into a screw hole 44 provided on the lower surface of the traveling member 41. A spring 45 is interposed between the main body member 40 and the traveling member 41. A knob 46 having a substantially truncated cone shape is integrally formed at the lower end of the adjustment bolt 43.

  With such a configuration, the main body member 40 can move in the vertical direction between the lower surface of the traveling member 41 and the upper surface of the knob 46. The traveling member 41 is biased upward (upper rail 18 side) by a spring 45.

  The upper metal fitting 24 is capable of changing the distance between the main body member 40 and the traveling member 41 (the vertical dimension of the upper metal fitting 24) by adjusting the screwing amount of the adjusting bolt 43 as appropriate. When 43 is loosened, the movement range of the main body member 40 in the vertical direction is widened, and when the adjustment bolt 30 is tightened, the movement range is narrowed.

  The traveling member 41 is fixed to a plurality of (in this case, two) slide rollers 47 that rotate in the vertical axis and a side portion of the traveling member 41 (a side portion on the front side in FIG. 9). And an interlocking plate 48 that moves to the position. The slide roller 47 is disposed on the upper surface of the protrusions 49 provided at the left and right ends of the traveling member 41. These slide rollers 47 are fitted to the inside of a slide groove 50 (see FIG. 10) which is provided on the upper rail 18 and is long in the extending direction of the upper rail 18 so as to be movable from below. It moves while sliding inside the slide groove 50. That is, the upper metal member 24 of the frame-side metal member 15 is formed in a slide shape in which the slide roller 47 slides inside the slide groove 50. Note that the slide roller 47 rolls when it comes into contact with the inner surface of the slide groove 50, and also has a function of more smoothly ensuring the opening and closing and movement of the upper metal member 24, and consequently the folding door 11.

  By the way, what comprised the frame side metal fitting 15 with respect to the upper side part 12b of the frame 12 not with a slide type but with the hanging type is also considered (for example, refer patent document 1). This suspension type is provided with a suspension wheel that rotates on the horizontal axis on the frame side metal fitting 15 with respect to the upper side portion 12b of the frame 12, and the lower surface is opened on the upper side portion 12b of the frame 12 and the inner side is located on both sides of the open surface. A semi-closed groove-like rail having an overhanging portion is attached, and a suspension wheel is accommodated in this rail so as to be able to roll.

  However, in such a suspension-type configuration, the weight of the folding door 11 suspended by the suspension vehicle is applied to the rail, and the upper side portion 12b of the frame 12 is lowered and bent. There is a risk that the movement of the. Therefore, the frame side metal fitting 15 with respect to the upper side portion 12b of the frame 12 is not a hanging type as described above, but a slide type in which a slide roller 47 is fitted into the inside of the slide groove 50 from below like the upper metal fitting 24 described above. If it comprises, since the weight of the folding door 11 will not be applied to the upper side part 12b of the frame 12, and this upper side part 12b will not become a feeling of falling, the folding door 11 can be opened and closed smoothly.

  On both the left and right sides of the lower surface of the traveling member 41, columnar protrusions 51 having a substantially cross-shaped cross section when viewed in the vertical direction are provided, and these columnar protrusions 51 are holes 52 provided at the upper left and right sides of the main body member 40. It is inserted in.

  The interlocking plate 48 is provided with a slide portion 53 that is long in the left-right direction along the upper rail 18 and an attachment portion 54 that is formed at the lower portion of the slide portion 53. At the upper end of the slide portion 53, a ridge portion 55 that is long and projects upward along the extending direction of the upper rail 18 is provided. The attachment portion 54 is formed in a substantially rectangular shape in which the rear end portion in the front-rear direction (the end portion on the traveling member 41 side in FIG. 9) protrudes from the rear end surface of the slide portion 53, Two long holes 56 that are long in the vertical direction are provided. Then, the screw 57 inserted through the long hole 56 is screwed into the screw hole 58 provided on the side surface of the traveling member 41 and tightened, whereby the screw 57 is attached between the head of the screw 57 and the side surface of the traveling member 41. Since the portion 54 is pinched, the interlocking plate 48 is fixed to the side surface of the traveling member 41 by this.

  The slide portion 53 of the interlocking plate 48 is provided on the side portion (left side portion in FIG. 10) of the upper rail 18, and the slide rail 59 is open on the side surface (the inner side surface of the frame 12, the left side surface in FIG. 10). It is slidably fitted inside. The slide rail 59 is formed long along the extending direction of the upper rail 18, and a guide plate 60 projecting downward is provided above the open surface. Since the protruding strip 55 of the slide portion 53 is pressed by the guide plate 60, the backward movement (leftward in FIG. 10) of the slide portion 53 is restricted and the slide rail 59 is prevented from coming off. The

  As shown in FIG. 11, the connecting mechanism 16 connects the base end portions of the two connecting plates 62 and 63 to the base body 61 by pivot pins 64 and 65 so that the two connecting plates 62 and 63 are connected. The tip end portion of 63 is pivotally connected to the cylindrical portion 20 of the door-side metal fitting 14 by shaft pins 66 and 67. The base 61 further has a notch groove 68. This notch groove 68 is shown in FIG. As shown in FIG. 4, the screw is fitted into the frame side metal fitting 15 and is attached to the frame side metal fitting 15 by tightening the screw 28 at the optimum slide adjustment position.

  Here, in actual attachment, the door-side metal fitting 14 is attached to the end 11 a of the folding door 11. On the other hand, of the frame side metal fitting 15, the lower metal fitting 23 for the lower side portion 12 a places the roller 33 on the rolling surface 35 of the lower rail 17 and accommodates the guide roller 34 inside the guide groove 37. Further, the upper metal member 24 for the upper side portion 12 b fits the slide portion 53 into the slide rail 59 of the upper rail 18 and accommodates the slide roller 47 in the slide groove 50. At this time, in attaching the upper metal member 24, the interlocking plate 48 may fix the attachment portion 54 to the traveling member 41 after fitting the protrusion 55 of the slide portion 53 into the slide rail 59. . Further, by appropriately adjusting the screwing amount of the adjustment bolt 43 of the upper metal member 24, an allowance is given to the range of movement of the main body member 40 in the vertical direction.

  And the door side metal fitting 14 is attached to these frame side metal fittings 15 with the said notch groove 68 and the screw 28, respectively. In this case, the main body member 40 of the upper metal member 24 can be moved in the vertical direction within the range having the margin with respect to the traveling member 41 attached to the upper rail 18. It can be attached while adjusting the height to the height of the door-side metal fitting 14. When the upper metal fitting 24 is attached to the door-side metal fitting 14, as shown in FIG. 10, a clearance d1 is formed on the upper side of the body member 40 of the upper metal fitting 24, and a clearance d2 is formed on the lower side. Therefore, after the folding door 11 is attached, the main body member 40 can move up and down within the range of the clearances d1 and d2.

  The folding door 11 is attached in advance by placing the door side metal fitting 14 and the frame side metal fitting 15 on the folding door 11 and then placing the lower metal fitting 23 on the lower rail 17 and then attaching the upper metal fitting 24 to the upper rail 18. You may make it attach. In this case, the slide roller 47 can be accommodated in the slide groove 50 while pulling the knob 46 when the upper metal fitting 24 is attached.

  After the installation, if the folding door 11 is pulled forward with a handle 11d (see FIG. 5) provided on the front surface near the connecting portion of the hinge 11c, the frame side metal fitting 15 is not attached to the lower side 12a. The roller 33 moves along the lower rail 17 while rolling, and moves along the upper rail 18 while sliding the slide roller 47 relative to the upper side portion 12b. At the same time, the door-side metal fitting 14 is turned from the base 61 by the connecting mechanism 16 and thus from the frame-side metal fitting 15 to turn the folding door 11. Thereby, the folding door 11 is folded forward.

  By the way, as shown in FIG. 12, when the folding door 11 is folded (particularly in a completely folded state), the center of gravity of the folding door 11 moves forward (rightward in FIG. 12) from the frame 12. Therefore, as shown by the arrow A, the folding door 11 has its lower end portion rearward (leftward in FIG. 12) centering on the upper end side (the connecting portion S between the upper rail 18 and the upper bracket 24). The moving force is applied.

  However, even in such a state, the backward movement of the lower end portion of the folding door 11 is restricted by the guide roller 34 of the lower metal member 23 coming into contact with the inner surface of the guide groove 37. As a result, the roller 33 is prevented from being removed from the lower rail 17. Further, the guide roller 34 rolls when it comes into contact with the inner surface of the guide groove 37, whereby the lower metal fitting 23, and consequently the folding door 11, can be more smoothly opened and closed.

  Further, when manufacturing the frame 12, it is technically difficult to make the four sides of the frame 12 strictly horizontal and vertical. Accordingly, the frame 12 is actually distorted, and is narrowed or widened along the moving direction of the folding door 11 (the left-right direction in FIG. 13) like a frame 12 ′ shown in FIG. There is a case. The frame 12 'is shown as an example in which the lower side portion 12a' and the upper side portion 12b 'are extremely inclined.

  In such a frame 12 ′, when the folding door 11 is moved in the direction in which the frame 12 ′ is narrow (rightward in FIG. 13, the arrow B direction), the folding door 11 gradually becomes the lower side portion 12 a ′ and the upper side portion. 12b 'will be in the state caught, and it will become impossible to open and close and move the folding door 11 smoothly. On the other hand, when the folding door 11 is moved in the direction in which the frame 12 ′ is wide (leftward in FIG. 13, the direction of arrow C), the folding door 11 is gradually suspended between the lower side portion 12 a ′ and the upper side portion 12 b ′. (Folding door 11 hangs from upper side portion 12b 'and floats from lower side portion 12a'). In this case as well, folding door 11 cannot be opened and closed smoothly.

  However, as described above, the main body member 40 of the upper metal member 24 can move up and down within the range of the clearances d1 and d2. The traveling member 41 of the upper metal member 24 moves up and down according to the height of the upper rail 18 (upper side portion 12 b ′) via the interlocking plate 48.

  Therefore, when the folding door 11 is moved in the direction in which the frame 12 ′ becomes narrower, the traveling member 41 of the upper metal member 24 moves relative to the main body member 40 within a movement amount corresponding to the range of the clearance d <b> 1 on the upper side of the main body member 40. Move down. As a result, the downward movement of the upper side portion 12b ′ relative to the folding door 11 is allowed within the movement amount of the clearance d1, so that the folding door 11 does not get caught by the lower side portion 12a ′ and the upper side portion 12b ′. The smooth movement of the folding door 11 in the left-right direction can be ensured.

  On the other hand, when the folding door 11 is moved in the direction in which the frame 12 ′ becomes wider, the traveling member 41 of the upper bracket 24 moves to the main body member 40 within a movement amount corresponding to the range of the clearance d <b> 2 on the lower side of the main body member 40. On the other hand, it moves upward. As a result, the upward movement of the upper side portion 12b 'relative to the folding door 11 is allowed within the movement amount of the clearance d2, so that the folding door 11 is suspended between the lower side portion 12a' and the upper side portion 12b '. The smooth movement of the folding door 11 in the left-right direction can be ensured without being in a state.

Further, when the folding door 11 is attached to the distorted frame 12 ', the left side 12c' and the right side 12d 'are not perpendicular to the lower side 12a' and the upper side 12b 'of the frame 12'. When the folding door 11 is closed with respect to the portion 12c ′ and the right side portion 12d ′, a gap may be formed between the folding door 11 and the frame 12 ′ when viewed in the front-rear direction of the folding door device. is there. Therefore, in order to reduce such a gap as much as possible, it is necessary to correct the mounting angle of the folding door 11. In this case, on one end side of the folding door 11, the screwing amount of the adjustment bolt 30 of the lower metal fitting 23 is adjusted, and the vertical dimension of the lower metal fitting 23 is changed. Thereby, since the edge part of the folding door 11 of the one end side goes up and down, the attachment angle of the folding door 11 can be corrected and the clearance gap produced between this folding door 11 and frame 12 'can be decreased as much as possible.
Japanese Patent No. 3657871

  When the lower bracket 23 is configured as a rolling type and the upper bracket 24 is configured as a slide type as in the folding door device as described above, the resistance associated with movement is smaller in the lower portion than in the upper portion of the folding door 11. The folding door 11 moves quickly in the moving direction. Further, particularly when the folding door 11 is folded, the distance between the lower metal fittings 23 attached to the left and right lower ends of the folding door 11 (the distance in the left-right direction) becomes short, and the rollers 33 of these lower metal fittings 23 approach each other. For this reason, the lower part of the folding door 11 becomes easier to move in the moving direction than the upper part. Therefore, as shown in FIG. 14, when the folding door 11 is moved in the left-right direction (in this case, to the right), the lower movement amount (see arrow E) than the upper movement amount (see arrow D) of the folding door 11. Becomes larger. Therefore, the lower part of the folding door 11 moves earlier than the upper part, and as shown by a two-dot chain line, the folding door 11 as a whole tilts backward (inclined in the direction opposite to the moving direction) with respect to the moving direction. is there.

  At this time, as the folding door 11 tilts backward with respect to the moving direction, the end of the folding door 11 on the moving direction side (in this case, the right end) moves upward. If the end portion on the moving direction side is raised too much, the guide roller 34 at the lower end portion on the moving direction side is disengaged from the guide groove 37, and the guide effect by the guide roller 34 and the guide groove 37 is lost. In such a state, the roller 33 cannot be maintained at a normal position (on the rolling surface 35 of the lower rail 17), and the rolling of the roller 33 becomes unstable. The folding door 11 cannot be opened, closed or moved smoothly.

  The present invention has been made in view of the above-described circumstances, and an object thereof is a folding door that can appropriately maintain the running performance of the folding door in a folded state and can smoothly open and close the folding door. It is to provide metal fittings.

  The folding door bracket of the present invention is for movably and pivotally attaching the end of the folding door to the frame, and can be pivoted on the door side bracket attached to the folding door. A frame-side metal fitting connected to the lower side of the frame, the frame side metal fitting rolling over a lower rail provided on the lower side of the frame; and the lower side A guide part that is movably fitted in a guide groove provided in the part and guides the door wheel along the lower rail part, and is provided on the upper side part of the frame with respect to the upper side part of the frame. A slide portion that is movably fitted inside the upper rail portion, and a stopper that prevents the guide portion from being detached from the guide groove by restricting the upward movement of the folding door with respect to the frame. It has the characteristics.

  According to the folding door metal fitting of the present invention, the frame side metal fitting is constituted by a rolling shape with respect to the lower side portion of the frame, and is constituted by a slide shape with respect to the upper side portion of the frame. Therefore, when folding and moving the folding door, the lower part moves faster than the upper part of the folding door, the whole folding door is tilted backward with respect to the moving direction, and is provided at the lower end on the moving direction side of the folding door. There is a possibility that the guide part comes off the guide groove. However, even if the folding door is tilted backward, the stopper restricts the upward movement of the folding door with respect to the frame and prevents the guide portion from being detached from the guide groove. Therefore, the guide effect by the guide part and the guide groove is not lost, and the door pulley can be normally maintained on the lower rail part. Thereby, the runnability of the folding door in a state in which the folding door is folded can be appropriately maintained, and the folding door can be smoothly opened and closed and moved.

  An embodiment of the present invention will be described below with reference to FIGS. In addition, description is abbreviate | omitted about the same part as the above-mentioned prior art example, and only a different part is demonstrated. Of the components of the folding door fitting 13 shown in the above-described conventional example, the lower rail 17 is the lower rail portion of the present invention, the upper rail 18 is the upper rail portion, the roller 33 is the door wheel, and the guide roller 34 is In the guide portion, the slide roller 47 corresponds to the slide portion.

  The interlocking plate 101 shown in FIG. 2 is an alternative to the interlocking plate 48 shown in the above-described conventional example, and a surface facing the traveling member 41 (in FIG. An adjustment groove 103 is provided which is open on the back surface and extends in the vertical direction. In addition, an elongated hole 104 that is long in the vertical direction and communicated with the adjustment groove 103 is provided at a substantially central portion in the left-right direction of the mounting portion 102.

  A stopper 105 having a substantially L-shaped cross section as viewed in the left-right direction (the extending direction of the slide portion 53) is attached to the adjustment groove 103 so as to be movable in the up-down direction. A screw hole 106 is formed in the upper end portion of the stopper 105, and a screw 107 inserted through the long hole 104 is screwed into the screw hole 106. Then, by tightening the screw 107, the mounting portion 102 is clamped between the head of the screw 107 and the stopper 105, whereby the stopper 105 is fixed in the adjustment groove 103.

  The position of the stopper 105 in the vertical direction is adjusted by loosening the screw 107 and moving the screw 107 up and down along the elongated hole 104. That is, if the screw 107 is moved up and down, the stopper 105 moves up and down integrally with it, and the vertical position of the stopper 105 is adjusted. Then, by tightening the screw 107 at the optimum adjustment position, the stopper 105 is fixed at the adjusted position.

  As shown in FIG. 1, the bottom surface of the stopper 105 attached to the interlocking plate 101 is opposed to the upper surface of the main body member 40 of the upper metal member 24. That is, the distance between the bottom surface of the stopper 105 and the upper surface of the main body member 40 is the clearance d1 on the upper side of the main body member 40. In this case, the vertical position of the stopper 105 is adjusted so that the clearance d1 is smaller than the vertical dimension of the guide roller 34.

Next, the operation and effect of the present embodiment will be described.
As described above, in the folding door device in which the lower bracket 23 is a rolling type and the upper bracket 24 is a slide type, when the folding door 11 is folded and moved in the left-right direction, the lower portion is faster than the upper portion of the folding door 11. The folding door 11 as a whole moves backward with respect to the moving direction. As the folding door 11 tilts backward, the end of the folding door 11 on the moving direction side moves upward, and the main body member 40 of the upper metal fitting 24 on the moving direction side rises.

  At this time, when the rising amount reaches the clearance d1, the upper surface of the main body member 40 comes into contact with the bottom surface of the stopper 105, and the end of the main body member 40 and consequently the folding door 11 on the moving direction side further moves upward. Is regulated. As a result, the ascending amount of the end of the folding door 11 on the moving direction side is suppressed within a clearance d1 that is smaller than the vertical dimension of the guide roller 34, so that the guide roller 34 is prevented from being detached from the guide groove 37. Is done.

  Therefore, even if the folding door 11 as a whole tilts backward with respect to the moving direction, the guide effect by the guide roller 34 and the guide groove 37 is not lost, and the roller 33 is normally maintained on the rolling surface 35 of the lower rail 17. it can. Thereby, the runnability of this folding door 11 in the state which folded folding door 11 can be maintained appropriately, and opening / closing and movement of this folding door 11 can be made smooth.

  In addition, in order to minimize the gap generated between the folding door 11 and the frame 12 when viewed in the front-rear direction of the folding door device, when the mounting angle of the folding door 11 is adjusted by the adjustment bolt 30 of the lower bracket 23, The height of the main body member 40 of the upper metal fitting 24 also changes up and down together with the upper end portion of the adjusted folding door 11. For this reason, the distance (clearance d1) between the bottom surface of the stopper 105 and the top surface of the main body member 40 becomes too narrow or too wide to maintain an appropriate distance, and the folding door 11 is moved upward by the stopper 105. The regulatory effect may be lost.

  However, in this embodiment, the stopper 105 can be adjusted in the vertical direction. Therefore, after adjusting the attachment angle of the folding door 11, the vertical position of the stopper 105 can be adjusted according to the height of the main body member 40 of the upper bracket 24. Thereby, the clearance d1 on the upper side of the main body member 40 can be maintained at an appropriate interval, and the restriction effect by the stopper 105 can be prevented from being lost.

In addition, this invention is not limited only to one Example mentioned above, It can deform | transform or expand as follows.
The stopper 105 is not limited to a substantially L-shaped cross section when viewed in the left-right direction, and may be, for example, a substantially rectangular shape when viewed in the left-right direction. Further, the stopper 105 may be configured to be adjustable in the vertical direction using, for example, a gear mechanism.

The guide portion is not limited to the guide roller 34 rotating in the vertical axis. For example, a long convex portion is provided on the lower surface of the traveling member 26 in the extending direction of the lower rail 17, and the convex portion is provided inside the guide groove 37. You may make it fit so that a movement is possible.
The slide portion is not limited to the slide roller 47 rotating in the vertical axis. For example, a long convex portion is provided on the upper surface of the traveling member 41 in the extending direction of the upper rail 18, and this convex portion is provided inside the slide groove 50. You may make it fit so that a movement is possible.

The interlocking plate 101 may be provided with a roller capable of rotating in the horizontal axis instead of the slide portion 53, and this roller may be fitted inside the slide rail 59.
As shown in FIG. 3, a convex portion 33 a may be provided on the entire circumference of the roller 33, and a concave portion 35 a that movably fits the convex portion 33 a may be provided on the rolling surface 35 of the lower rail 17. According to this structure, the roller 33 can be stably rolled along the rolling surface 35 of the lower rail 17 by the guide effect by the convex part 33a and the recessed part 35a.

The connection mechanism 16 is not limited to a multi-axis type using the shaft pins 64 and 65 and the shaft pins 66 and 67, and is, for example, a structure in which the cylindrical portion 20 and the base body 61 are rotatably connected by a single shaft. There may be.
In addition, the present invention can be implemented with appropriate modifications without departing from the scope of the invention.

The vertical side view of the upper part and lower part of the folding door apparatus which shows one Example of this invention Perspective view of interlocking plate FIG. 1 is a diagram corresponding to the part of FIG. Schematic cross section of inset type folding door device Schematic cross-sectional view of outset type folding door device General perspective view of a folding door device showing a conventional example Exploded perspective view of fitting part for folding door Disassembled perspective view of the lower bracket Disassembled perspective view of the upper bracket 1 equivalent diagram Enlarged cross-sectional view of the coupling mechanism Vertical side view of the folding door device showing the folded state of the folding door Front view of the folding door device showing a distorted frame Front view of the folding door device showing the folded state of the folding door

Explanation of symbols

  In the drawings, 11 is a folding door, 12 is a frame, 12a is a lower side portion, 12b is an upper side portion, 13 is a folding door fitting, 14 is a door side fitting, 15 (23, 24) is a frame side fitting, and 17 is a lower rail (lower (Rail portion), 18 is an upper rail (upper rail portion), 33 is a roller (door wheel), 34 is a guide roller (guide portion), 37 is a guide groove, 47 is a slide roller (slide portion), and 105 is a stopper.

Claims (2)

For movably and pivotally attaching the end of the folding door to the frame,
A door-side bracket attached to the folding door;
A frame-side metal fitting rotatably connected to the door-side metal fitting,
The frame side bracket is
For the lower side of the frame, a door wheel that rolls on a lower rail portion provided on the lower side of the frame and a door that is movably fitted in a guide groove provided on the lower side portion. A guide portion for guiding along the lower rail portion,
For the upper side portion of the frame, a slide portion that is movably fitted inside an upper rail portion provided on the upper side portion of the frame, and restricts the upward movement of the folding door with respect to the frame. And a stopper for preventing the guide portion from being detached from the guide groove.   2. The folding door bracket according to claim 1, wherein the position of the stopper is adjustable in the vertical direction.

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