Hinge mounting structure

Abstract

A mounting structure of a hinge is provided which can improve the appearance thereof. A hinge (1) comprises a first piece (3) and a second piece (4) that are linked via a shaft (2) so as to allow relative rotation, and the first piece (3) is attached to a side frame (6) and the second piece (4) is attached to a door (5), wherein a protruding part (8) that protrudes beyond the wall surface towards the front is provided on the side frame (6), and the center (C) of the shaft (2) is arranged to the back of the front surface line (X) of the protruding part (8) of the side frame (6).

Description

Technical Field

[0001] The present invention mainly relates to a hinge mounting structure used for building structures.

Background Art

[0002] Conventionally, there is known a hinge mounting structure in which a first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft is attached to a side frame, and the second piece is attached to a door. In order to open the door at a wide angle, in the conventional hinge mounting structure, the shaft of the hinge is disposed in front of the front surface of the side frame. However, when the shaft of the hinge is disposed in this way, the shaft of the hinge protrudes from the side frame, so there is a problem that the appearance is poor. In order to solve this problem, Patent Document 1 discloses a hinge mounting structure in which the shaft of the hinge is retracted and the center of the shaft of the hinge is disposed at the same position as the front surface line of the side frame.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the hinge mounting structure described in Patent Document 1, the center of the shaft of the hinge can only be retracted to the same position as the front surface line of the side frame. Since half of the shaft of the hinge protrudes from the front surface of the side frame, the appearance cannot be improved so much.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a hinge mounting structure capable of improving the appearance.

Means for Solving the Problems

[0006] In order to solve the above problems, one aspect of the present invention is to attach the first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft to a side frame, and attach the second piece to a door. In the hinge mounting structure, a convex portion protruding forward from the wall surface is provided on the side frame, and the center of the shaft is arranged behind the front surface line of the convex portion of the side frame. Then, the center of the shaft is disposed between the inner surface and the outer surface of the convex portion of the side frame, the first piece includes a cylindrical portion into which the shaft is inserted, the second piece includes a cylindrical portion into which the shaft is inserted, an opening that is continuous with the inner surface, the front surface, and the outer surface of the convex portion is formed in a part of the convex portion of the side frame, the cylindrical portions of the first piece and the second piece are disposed in the opening, and are exposed from the opening at the closed position of the door. It is a hinge mounting structure. Another aspect of the present invention is a hinge mounting structure for mounting the first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft to a side frame and mounting the second piece to a door. In the hinge mounting structure, a convex portion that protrudes forward from a wall surface is provided on the side frame, the center of the shaft is disposed behind the front surface line of the convex portion of the side frame, the first piece is disposed in a recess provided in the side frame, and the first piece attached to the recess is covered with a cover. Still another aspect of the present invention is a hinge mounting structure for mounting the first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft to a side frame and mounting the second piece to a door. In the hinge mounting structure, a convex portion that protrudes forward from a wall surface is provided on the side frame, the center of the shaft is disposed behind the front surface line of the convex portion of the side frame, the second piece includes a mounting plate attached to the door, a second piece body provided with a cylindrical portion into which the shaft is inserted, and an intermediate plate disposed between the mounting plate and the second piece body, and the mounting plate is position-adjustable with respect to the second piece body so that the position of the door in the front-rear direction, the vertical direction, and the left-right direction can be adjusted.

Effect of the Invention

[0007] According to the present invention, since the center of the shaft is installed behind the front surface line of the convex portion of the side frame, the appearance can be improved.

Brief Description of the Drawings

[0008]

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DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, based on the accompanying drawings, the mounting structure of the hinge of the embodiment of the present invention will be described in detail. However, the mounting structure of the hinge of the present invention can be embodied in various forms and is not limited to the embodiments described in this specification. This embodiment is provided with the intention of enabling those skilled in the art to fully understand the invention by sufficiently disclosing the specification. (First Embodiment)

[0010] FIG. 1 is an exploded perspective view of a hinge used in the hinge mounting structure of the first embodiment of the present invention. The hinge 1 includes a shaft 2, and a first piece 3 and a second piece 4 that are relatively rotatably connected via the shaft 2. The first piece 3 includes a substantially rectangular main body portion 11 and cylindrical portions 12a and 12b. Two cylindrical portions 12a and 12b are integrally formed at the end portions in the width direction of the main body portion 11. The second piece 4 includes a substantially rectangular main body portion 13 and a cylindrical portion 14. One cylindrical portion 14 is integrally formed at the end portion in the width direction of the main body portion 13. The shaft 2 is inserted into the cylindrical portions 12a and 12b of the first piece 3 and the cylindrical portion 14 of the second piece 4. The cylindrical portion 14 of the second piece 4 is disposed between the cylindrical portions 12a and 12b of the first piece 3. The height of the main body portion 13 of the second piece 4 is substantially the same as the height of the main body portion 11 of the first piece 3. Note that the shapes of the first piece 3 and the second piece 4 are merely examples and are not limited thereto.

[0011] FIG. 2 is an operation diagram of the hinge 1. The upper part of FIG. 2 shows a plan view of the hinge 1, and the lower part of FIG. 2 shows a perspective view of the hinge 1. FIG. 2(a) shows the closed position (0-degree open position) of the second piece 4, FIG. 2(b) shows the 90-degree open position of the second piece 4, and FIG. 2(c) shows the 180-degree open position of the second piece 4. The second piece 4 is rotatable with respect to the first piece 3 from 0 degrees to approximately 180 degrees.

[0012] In a plan view, the first piece 3 is substantially I-shaped, and the second piece 4 is substantially L-shaped. In the closed position of the second piece 4, the main body portion 11 of the first piece 3 and the main body portion 13 of the second piece 4 (the long side of the substantially L-shaped main body portion) are parallel. In the 90-degree open position of the second piece 4, the first piece 3 and the second piece 4 are orthogonal. In the 180-degree open position of the second piece 4, the first piece 3 and the second piece 4 are in a deployed state and are parallel. Note that the planar shapes of the first piece 3 and the second piece 4 are not limited to substantially I-shaped and substantially L-shaped.

[0013] FIG. 3 is a perspective view of the hinge mounting structure of the present embodiment (when the door 5 is in the open position). FIG. 4 is a horizontal cross-sectional view of the hinge mounting structure of the present embodiment (when the door 5 is in the closed position). Hereinafter, for convenience of explanation, the hinge mounting structure will be described using each direction when the door 5 in the closed position is viewed from the front from the opening side, that is, the front-back, up-down, and left-right directions in FIGS. 3 and 4.

[0014] The first piece 3 of the hinge 1 is attached to one of the side frames 6, 6 (see FIG. 4) arranged on the left and right of the door 5, which is attached to one of the side frames 6. The second piece 4 of the hinge 1 is attached to the end face (the edge) of the door 5. The side frame 6 is attached to the wall 7. The side frame 6 is provided with a convex portion 8 that protrudes forward from the wall surface 7a. The convex portion 8 extends in the vertical direction to a height equal to or greater than that of the door 5. An incision 6a with an appropriate depth and a depth Y greater than the thickness of the door 5 is formed on the inner surface of the side frame 6.

[0015] As shown in FIG. 5, a rectangular recess 6b is formed in the incision 6a of the side frame 6. The first piece 3 is attached to this recess 6b. 15 is a screw hole into which a screw 17 (see FIG. 3) is screwed. A part 6b1 (the front end part) of the recess 6b penetrates the convex portion 8 of the side frame 6 in the left - right direction. This makes it easier to arrange the shaft 2 (see FIG. 3) of the hinge 1 inside the convex portion 8. As shown in FIG. 6, after the first piece 3 is attached to the recess 6b, the recess 6b is covered by a cover 16. Thereby, the screw 17 can be hidden to improve the appearance. The cover 16 is detachably attached to the side frame 6 by its hook 16a. Note that the frame of this embodiment is made of metal such as aluminum or sheet metal, but the material of the side frame 6 is not particularly limited. Also, the recess 6b may be formed on the front surface of the convex portion 8.

[0016] As shown in FIG. 7, a recess 5a extending in the vertical direction is formed on the end face of the door 5. The second piece 4 is attached to this recess 5a. As shown in FIG. 8, after the second piece 4 is attached to the recess 5a, the recess 5a is covered by a cover 18. Thereby, the screw 19 (see FIG. 7) can be hidden to improve the appearance. The cover 18 is detachably attached to the door 5 by its hook 18a.

[0017] FIG. 9 shows a horizontal cross-sectional view of the hinge mounting structure of the present embodiment. FIG. 9(a) shows the closed position of the door 5, FIG. 9(b) shows the 90-degree open position of the door 5, and FIG. 9(c) shows the 180-degree open position of the door 5. In the present embodiment, as shown in FIG. 9(a), the center C of the shaft 2 of the hinge 1 is disposed behind the front line X of the convex portion 8. Thereby, the hinge 1 can be made inconspicuous and the appearance can be improved. Further, when the door 5 rotates over the convex portion 8 from the open position to the closed position, the gap between the door 5 and the convex portion 8 can be reduced, for example, preventing a user from pinching a finger between them.

[0018] As shown in FIG. 9(a), the door 5 in the closed position exists behind the front line X of the convex portion 8. When the door 5 in the closed position shown in FIG. 9(a) rotates to the open position, the door 5 gets over the convex portion 8. Then, as shown in FIG. 9(c), at the open position of the door 5, at least a part of the door 5 exists behind the front line X of the convex portion 8. Thereby, the door 5 can be opened at a wide angle. Note that the opening angle of the door 5 in the open position is not limited to 180 degrees and may be any angle such as 190 degrees or 170 degrees.

[0019] As shown in FIG. 9(b), the center C of the shaft 2 is disposed between the inner surface 8b and the outer surface 8c of the convex portion 8. Thereby, the opening dimension L (see also FIG. 4) can be increased at the 90-degree open position of the door 5.

[0020] FIGS. 10 and 11 are perspective views of the hinge mounting structure (when the door 5 is in the closed position) of the present embodiment. FIG. 10 is a perspective view seen from the door 5 side, and FIG. 11 is a perspective view seen from the wall side.

[0021] As shown in Fig. 10, at the closed position of the door 5, the front surfaces 12a1, 12b1 of the cylindrical portions 12a, 12b of the first piece 3 and the front surface 14a of the cylindrical portion 14 of the second piece 4 are substantially on the same plane as the front surface 8a of the convex portion 8. As shown in Fig. 11, at the closed position of the door 5, the outer surfaces 12a2, 12b2 of the cylindrical portions 12a, 12b of the first piece 3 and the outer surface 14b of the cylindrical portion 14 of the second piece 4 are substantially on the same plane as the outer surface 8c of the convex portion 8. Thereby, the appearance can be improved. The front surface 8a and the outer surface 8c of the convex portion 8 are at a right angle. The front surfaces 12a1, 12b1 and the outer surfaces 12a2, 12b2 of the cylindrical portions 12a, 12b of the first piece 3 are at a right angle. The front surface 14a and the outer surface 14b of the cylindrical portion 14 of the second piece 4 are at a right angle.

[0022] Note that the front surface 8a and the outer surface 8c of the convex portion 8, the front surfaces 12a1, 12b1 and the outer surfaces 12a2, 12b2 of the cylindrical portions 12a, 12b of the first piece 3, and the front surface 14a and the outer surface 14b of the cylindrical portion 14 of the second piece 4 are all formed as flat surfaces, but they may also be formed as curved surfaces such as an arc-shaped horizontal cross-section. (Second Embodiment)

[0023] Fig. 12 shows a horizontal cross-sectional view of the hinge mounting structure according to the second embodiment of the present invention. Fig. 12(a) shows the closed position of the door 5, Fig. 12(b) shows the 90-degree open position of the door 5, and Fig. 12(c) shows the 180-degree open position of the door 5. The configurations of the wall 7, the side frame 6, and the hinge 1 are the same as those of the hinge mounting structure of the first embodiment, so the same reference numerals are attached and the description thereof is omitted.

[0024] As shown in Fig. 12(a), also in the hinge mounting structure of the second embodiment, similar to the hinge mounting structure of the first embodiment, the center C of the shaft 2 of the hinge 1 is arranged behind the front surface line X of the convex portion 8. Further, as shown in Fig. 12(b), the center C of the shaft 2 is arranged between the inner surface 8b and the outer surface 8c of the convex portion 8.

[0025] In the hinge mounting structure of the first embodiment, at the open position of the door 5, at least a part of the door 5 is located behind the front line X. On the other hand, as shown in FIG. 12(c), in the hinge mounting structure of the second embodiment, at the open position of the door 5, the door 5 is located in front of the front line X, but at least a part of the second piece 4 of the hinge 1 is located behind the front line X.

[0026] As shown in FIG. 12(a), the door 5 in the closed position is located behind the front line X of the convex portion 8. When the door 5 in the closed position shown in FIG. 12(a) rotates to the open position, the door 5 gets over the convex portion 8. And, as shown in FIG. 12(c), at the open position of the door 5, a part of the second piece 4 of the hinge 1 is located behind the front line X of the convex portion 8. Thereby, the door 5 can be opened at a wide angle. Note that the opening angle of the door 5 in the open position is not limited to 180 degrees, and may be any angle such as 190 degrees or 170 degrees. (Third Embodiment)

[0027] FIGS. 13 to 15 show the hinge mounting structure of the third embodiment of the present invention. In the first embodiment, the side frame 6 is made of metal, whereas in the third embodiment, the side frame 6 is made of wood. Since the configuration of the hinge 1 is substantially the same as that of the hinge 1 in the first embodiment, the same reference numerals are given and the description thereof is omitted.

[0028] As shown in FIG. 13, the first piece 3 of the hinge 1 is attached to the side frame 6 by screws. The second piece 4 of the hinge 1 is attached to the end face of the door 5 by screws. The side frame 6 is provided with a convex portion 8 that protrudes forward from the wall surface 7a. As shown in FIG. 14, a concave portion 6b is formed on the inner surface of the side frame 6. The first piece 3 is attached to this concave portion 6b. 27 is a screw hole into which a screw is screwed.

[0029] FIG. 15 is a perspective view of the hinge mounting structure (when the door 5 is in the closed position) of the present embodiment. Similar to the first embodiment, the center C (see FIG. 9(a)) of the shaft 2 of the hinge 1 is disposed behind the front line X of the convex portion 8. Also, the center C of the shaft 2 of the hinge 1 is disposed between the inner surface 8b and the outer surface 8c of the convex portion 8. In the closed position of the door 5, the front surfaces 12a1, 12b1 of the cylindrical portions 12a, 12b of the first piece 3 and the front surface 14a of the cylindrical portion 14 of the second piece 4 are substantially in the same plane as the front surface 8a of the convex portion 8, and the outer surfaces 12a2, 12b2 of the cylindrical portions 12a, 12b of the first piece 3 and the outer surface 14b of the cylindrical portion 14 of the second piece 4 are substantially in the same plane as the outer surface 8c of the convex portion 8. According to the hinge mounting structure of the third embodiment, the same effects as those of the hinge mounting structure of the first embodiment are achieved. (Fourth Embodiment)

[0030] FIG. 16 shows the hinge mounting structure of the fourth embodiment of the present invention. 21 is a hinge, 23 is the first piece of the hinge 21, 24 is the second piece of the hinge 21, 6 is a side frame, 20 is an upper frame, 7a is a wall surface, and 5 is a door. In the first to third embodiments, the horizontal cross-sectional shape of the convex portion 8 of the side frame 6 protruding from the wall surface 7a is formed in a substantially rectangular shape (see FIG. 4), whereas in the fourth embodiment, the horizontal cross-sectional shape of the convex portion 8 of the side frame 6 protruding from the wall surface 7a is formed in a substantially triangular shape (see also FIG. 19(a)). As shown in FIG. 19, the outer surface 8c of the convex portion 8 is perpendicular to the wall surface 7a. The inner surface 8b of the convex portion 8 is inclined with respect to the outer surface 8c. The end face (end of the wood) of the door 5 is inclined according to the inner surface 8b of the convex portion 8. As shown in FIG. 16, the first piece 23 of the hinge 21 is attached to the side frame 6. The second piece 24 of the hinge 21 is attached along the end face of the door 5 and to the inner surface 5b of the door 5.

[0031] As shown in Fig. 17(a), the hinge 21 includes a shaft 22, and a first piece 23 and a second piece 24 that are relatively rotatably connected via the shaft 22. The first piece 23 includes a substantially rectangular main body portion 31 and cylindrical portions 32a and 32b. The second piece 24 includes a substantially rectangular main body portion 33 and a cylindrical portion 34. The cylindrical portion 34 of the second piece 24 is disposed between the cylindrical portions 32a and 32b of the first piece 23. The shaft 22 is inserted into the cylindrical portions 32a and 32b of the first piece 23 and the cylindrical portion 34 of the second piece 24. In a plan view, the first piece 23 and the second piece 24 are, for example, substantially L-shaped.

[0032] As shown in Fig. 17(a), a substantially rectangular recess 5b1 is formed on the inner surface 5b of the door 5. As shown in Fig. 17(b), the second piece 24 is attached to this recess 5a by a screw 25.

[0033] As shown in Fig. 18(a), a rectangular recess 6b is formed in the side frame 6. A part 6b1 (front end portion) of the recess 6b penetrates the convex portion 8 of the side frame 6 in the left-right direction. As shown in Fig. 18(b), after attaching the door 5 to the second piece 24, the first piece 23 is attached to the recess 6b of the side frame 6 by a screw 26. 15 is a screw hole into which the screw 26 is screwed.

[0034] Fig. 19 shows a plan view of the hinge mounting structure of the present embodiment (including a horizontal cross-sectional view of the side frame 6 and the door 5 in part). Fig. 19(a) shows the closed position of the door 5, Fig. 19(b) shows the 90-degree open position of the door 5, and Fig. 19(c) shows the 180-degree open position of the door 5. Fig. 20 shows a plan view of the hinge mounting structure of the present embodiment in the same manner as Fig. 19 (including a horizontal cross-sectional view of the side frame 6 and the door 5 at the height of the hinge 21 in part).

[0035] As shown in Fig. 20(a), the center C of the shaft 22 of the hinge 21 is disposed behind the front line X of the convex portion 8 (see Fig. 19(a)). Thereby, as shown in Fig. 21, the hinge 21 can be made inconspicuous. Also, as shown in Fig. 19, when the door 5 rotates over the convex portion 8 from the open position to the closed position, the gap between the door 5 and the convex portion 8 can be reduced, for example, preventing a user from pinching a finger between them.

[0036] As shown in FIG. 20(a), the door 5 in the closed position is located behind the front line X of the convex portion 8. As shown in FIG. 20(c), at the open position of the door 5, at least a part of the door 5 and at least a part of the second piece 24 are located behind the front line X of the convex portion 8. Thereby, the door 5 can be opened at a wide angle.

[0037] As shown in FIG. 20(a), the center C of the shaft 22 is disposed between the inner surface 8b and the outer surface 8c (see FIG. 19(a)) of the convex portion 8. Thereby, at the 90-degree open position of the door 5, the opening dimension L can be increased.

[0038] FIG. 21 is a perspective view of the hinge mounting structure (when the door 5 is in the closed position) of the present embodiment. At the closed position of the door 5, the front surfaces 32a1, 32b1 of the cylindrical portions 32a, 32b of the first piece 23 and the front surface 34a of the cylindrical portion 34 of the second piece 24 are substantially on the same plane as the front line X of the convex portion 8. Further, at the closed position of the door 5, the outer surfaces 32a2, 32b2 of the cylindrical portions 32a, 32b of the first piece 23 and the outer surface 34b of the cylindrical portion 34 of the second piece 24 are substantially on the same plane as the outer surface 8c of the convex portion 8. Thereby, the appearance can be improved.

[0039] As shown in FIG. 19(a), in this embodiment, the horizontal cross section of the front surface 8a of the convex portion 8 is formed in an arc shape or the like, but it may be formed in a plane. According to the hinge mounting structure of the fourth embodiment, the same effects as those of the hinge mounting structure of the first embodiment are achieved. (Fifth Embodiment)

[0040] FIG. 22 shows a hinge 41 used in the hinge mounting structure of the fifth embodiment of the present invention. FIG. 22(a) shows a state in which covers 48, 49 are attached to the first piece 43 and the second piece 44 of the hinge 41, and FIG. 22(b) shows a state in which the covers 48, 49 are removed from the first piece 43 and the second piece 44.

[0041] The hinge 41 of the fifth embodiment includes a shaft 42 (see FIG. 23), a first piece 43 and a second piece 44 that are relatively rotatably connected via the shaft 42, similar to the hinge 1 of the first embodiment. Similar to the hinge 1 of the first embodiment, the first piece 43 is attached to the side frame 6. The second piece 44 is attached to the end face of the door 5. Note that the hinge 41 shown in FIGS. 22 and 23 is in the 90-degree open position.

[0042] As shown in FIG. 22(b), the second piece 44 of the hinge 41 includes a mounting plate 45 attached to the door 5, a second piece body 47 provided with a cylindrical portion 68 into which the shaft 42 is inserted, and an intermediate plate 46 disposed between the mounting plate 45 and the second piece body 47. The second piece 44 is provided with an eccentric cam 50 as an up-and-down adjustment portion, an eccentric cam 61 as a front-and-back adjustment portion, and a left-and-right adjustment screw 62 as a left-and-right adjustment portion. By turning these, the positions of the door 5 in the up-and-down direction, left-and-right direction, and front-and-back direction in the closed position can be adjusted.

[0043] Note that the up-and-down direction, left-and-right direction, and front-and-back direction of the door 5 are the directions when the door 5 in the closed position is viewed from the open side in a front view, that is, the up-and-down direction, left-and-right direction, and front-and-back direction in FIGS. 22(b) and 23.

[0044] FIG. 23 shows an exploded perspective view of the hinge 41. The first piece 43 includes a substantially rectangular main body portion 53 and cylindrical portions 54a, 54b. The shaft 42 is inserted into the cylindrical portions 54a, 54b. A serration 42a for anti-rotation is formed at the end of the shaft 42. A cap 55 for covering the end of the shaft 42 is attached to the cylindrical portions 54a, 54b.

[0045] 45 is a mounting plate, 46 is an intermediate plate, and 47 is a second piece body. The mounting plate 45 is bent so that a recess 45a is formed in the central portion. The mounting plate 45 is formed with a through hole 45b through which a screw (not shown) for attaching the mounting plate 45 to the door 5 passes.

[0046] An eccentric cam 50 as a vertical adjustment part is rotatably attached to the mounting plate 45. As shown in Fig. 24(a), the eccentric cam 50 has a shaft part 50b and a head part 50a eccentric with respect to the shaft part 50b. As shown in Fig. 23, the shaft part 50b is inserted into the through hole 56 of the mounting plate 45, and the shaft part 50b is caulked, so that the eccentric cam 50 is rotatably attached to the mounting plate 45. The head part 50a of the eccentric cam 50 abuts against the upper and lower end parts 46b of the intermediate plate 46. When the eccentric cam 50 is rotated, the vertical position of the mounting plate 45 with respect to the intermediate plate 46 can be adjusted.

[0047] The intermediate plate 46 is bent so that a concave part 46a is formed in the central part, similar to the mounting plate 45. A long hole 58 extending in the vertical direction through which a screw 57 for fixing the intermediate plate 46 to the mounting plate 45 passes is formed in the intermediate plate 46. The screw 57 is screwed into the screw hole 59 of the mounting plate 45.

[0048] An eccentric cam 61 as a front-rear adjustment part is rotatably attached to the intermediate plate 46. As shown in Fig. 24(b), the eccentric cam 61 has a shaft part 61b and a head part 61a eccentric with respect to the shaft part 61b. As shown in Fig. 23, the shaft part 61b is inserted into the through hole 63 of the intermediate plate 46, and the shaft part 61b is caulked, so that the eccentric cam 61 is rotatably attached to the intermediate plate 46. The head part 61a of the eccentric cam 61 fits into a long hole 64 of a second piece body 47 described later. When the eccentric cam 61 is rotated, the left-right direction (the left-right direction on the drawing) position of the intermediate plate 46 with respect to the second piece body 47 can be adjusted.

[0049] The intermediate plate 46 is formed with a long hole 65 extending in the left - right direction (the left - right direction in the drawing). One end of the long hole 65 is open. A left - right adjustment screw 62 as a left - right adjustment part is rotatably attached to the intermediate plate 46. A small - diameter part 62a is formed on the left - right adjustment screw 62. By inserting the small - diameter part 62a into the long hole 65 from the open end, the left - right adjustment screw 62 is rotatably attached to the intermediate plate 46. The large - diameter screw part 62b of the left - right adjustment screw 62 is screwed into the screw hole 66 of the second piece body 47. When the left - right adjustment screw 62 is turned, the position of the intermediate plate 46 in the front - rear direction (the front - rear direction in the drawing) with respect to the second piece body 47 can be adjusted.

[0050] The second piece body 47 includes a substantially L - shaped main body part 69 that fits into the recess 46a of the intermediate plate 46 and a cylindrical part 68. The shaft 42 is inserted into the cylindrical part 68. A collar 70 for preventing contact between the first piece 43 and the second piece body 47 is attached to the cylindrical part 68.

[0051] The second piece body 47 is formed with a long hole 71 extending in the left - right direction (the left - right direction in the drawing). A screw 72 for fixing the second piece body 47 to the intermediate plate 46 passes through the long hole 71. A screw hole 73 into which the screw 72 is screwed is formed in the intermediate plate 46.

[0052] The second piece body 47 is formed with a screw hole 66 into which the left - right adjustment screw 62 is screwed. When assembling the second piece body 47 to the intermediate plate 46, after screwing the left - right adjustment screw 62 into the second piece body 47, the small - diameter part 62a of the left - right adjustment screw 62 is inserted into the long hole 65 of the intermediate plate 46. Then, the intermediate plate 46 is slid to the right with respect to the second piece body 47 so that the head 61a of the eccentric cam 61 fits into the long hole 64 of the second piece body 47.

[0053] The adjustment of the position of the door 5 is carried out as follows. Fig. 25(a) shows the state where the mounting plate 45 is adjusted to the upper end position with respect to the intermediate plate 46, and Fig. 25(b) shows the state where it is adjusted to the lower end position. As shown in Figs. 25(a) and (b), when adjusting the vertical position of the door 5, loosen the screw 57 to make the mounting plate 45 movable in the vertical direction with respect to the intermediate plate 46, and then rotate the eccentric cam 50 (that is, eccentrically rotate the head 50a of the eccentric cam 50) to adjust the vertical position of the mounting plate 45 with respect to the intermediate plate 46. After the position adjustment, tighten the screw 57 to fix the mounting plate 45 to the intermediate plate 46.

[0054] Fig. 26(a) shows the state where the intermediate plate 46 is adjusted to the left end position (the left end position when the second piece 44 is at the 90-degree open position) with respect to the second piece main body 47, and Fig. 26(b) shows the state where it is adjusted to the right end position. As shown in Figs. 26(a) and (b), when adjusting the front-rear position of the door 5, loosen the screw 72 to make the intermediate plate 46 movable in the left-right direction (the left-right direction on the drawing) with respect to the second piece main body 47, and then rotate the eccentric cam 61 (that is, eccentrically rotate the head 61a of the eccentric cam 61 while sliding the head 61a up and down in the long hole 64 of the second piece main body 47) to adjust the left-right position (the left-right direction on the drawing) of the intermediate plate 46 with respect to the second piece main body 47. After the position adjustment, tighten the screw 72 to fix the second piece main body 47 to the intermediate plate 46.

[0055] Figure 27(a) shows a state where the intermediate plate 46 is adjusted to the rear end position (the rear end position when the second piece 44 is in the 90-degree open position) with respect to the second piece main body 47, and Figure 27(b) shows a state where it is adjusted to the front end position. Figure 27(c) shows a cross-sectional view taken along line A-A of Figure 27(a), and Figure 27(d) shows a cross-sectional view taken along line B-B of Figure 27(b). As shown in Figures 27(a) to (d), when adjusting the horizontal position of the door 5, loosen the screw 72 to make the intermediate plate 46 movable in the front-rear direction (the front-rear direction in the drawing) with respect to the second piece main body 47, and then rotate the left-right adjustment screw 62 to rotate the intermediate plate 46 with respect to the second piece main body 47 about the end of the second piece main body 47 as a fulcrum (see Figures 27(c) and (d)) to adjust the position of the intermediate plate 46 in the front-rear direction (the front-rear direction in the drawing). After the position adjustment, tighten the screw 72 to fix the second piece main body 47 to the intermediate plate 46.

[0056] According to the hinge of the fifth embodiment, since the three-dimensional position adjustment mechanism is concentrated on the second piece 44 side, when the door 5 is opened, the three-dimensional position of the door 5 can be adjusted. Therefore, the position adjustment of the door 5 is easy. In addition, since there is no need to provide a position adjustment mechanism on the first piece 43 side, the first piece 43 can be made thinner, and a deep recess does not need to be provided in the side frame 6.

[0057] This specification is based on Japanese Patent Application No. 2020-094092 filed on May 29, 2020, and Japanese Patent Application No. 2020-196876 filed on November 27, 2020. All of this content is incorporated herein by reference.

Explanation of Reference Numerals

[0058] 1... Hinge 2... Shaft 3... First piece 4... Second piece 5... Door 6... Side frame 6b... Recess 7a... Wall surface 8... Protrusion 8a... Front surface of the protrusion 8c... Outer surface of the protrusion 12a, 12b... Cylindrical portions of the first piece 12a1, 12b1... Front surfaces of the cylindrical portions 12a2, 12b2… Outer surface of the cylindrical part 14… Cylindrical part of the second piece 14a… Front surface of the cylindrical part 14b… Outer surface of the cylindrical part 16… Cover 21… Hinge 22… Shaft 23… First piece 24… Second piece 32a, 32b… Cylindrical part of the first piece 32a1, 32b1… Front surface of the cylindrical part 32a2, 32b2… Outer surface of the cylindrical part 34… Cylindrical part of the second piece 34a… Front surface of the cylindrical part 34b… Outer surface of the cylindrical part 41… Hinge 43… First piece 44… Second piece 45… Mounting plate 46… Intermediate plate 47… Second piece body C… Center of the shaft X… Front line of the convex part

Claims

1. In a hinge mounting structure for mounting a first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft, the first piece to a side frame and the second piece to a door, a convex portion protruding forward from a wall surface is provided on the side frame, the center of the shaft is arranged behind a front surface line of the convex portion of the side frame, the center of the shaft is arranged between an inner surface and an outer surface of the convex portion of the side frame, the first piece includes a cylindrical portion into which the shaft is inserted, the second piece includes a cylindrical portion into which the shaft is inserted, an opening continuous with the inner surface, the front surface, and the outer surface of the convex portion is formed in a part of the convex portion of the side frame, a hinge mounting structure in which the cylindrical portion of the first piece and the cylindrical portion of the second piece are arranged in the opening and are exposed from the opening at a closed position of the door.

2. The first piece includes two cylindrical portions, The hinge mounting structure according to claim 1, wherein the second piece includes one cylindrical portion arranged between the two cylindrical portions of the first piece.

3. At least one of a front surface of the cylindrical portion of the first piece into which the shaft is inserted or a front surface of the cylindrical portion of the second piece into which the shaft is inserted is arranged substantially in the same plane as the front surface of the convex portion at a closed position of the door. The hinge mounting structure according to claim 1 or 2.

4. At least one of an outer surface of the cylindrical portion of the first piece into which the shaft is inserted or an outer surface of the cylindrical portion of the second piece into which the shaft is inserted is arranged substantially in the same plane as the outer surface of the convex portion at a closed position of the door. The hinge mounting structure according to any one of claims 1 to 3.

5. The hinge mounting structure according to any one of claims 1 to 4, wherein the first piece is arranged in a recess provided in the side frame.

6. The hinge mounting structure according to claim 5, wherein a part of the recess penetrates the side frame in a left - right direction.

7. In a hinge mounting structure for mounting a first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft, the first piece to a side frame and the second piece to a door, a convex portion protruding forward from a wall surface is provided on the side frame, the center of the shaft is arranged behind a front surface line of the convex portion of the side frame, the first piece is arranged in a recess provided in the side frame, A hinge mounting structure in which the first piece attached to the recess is covered with a cover.

8. In a hinge mounting structure for mounting a first piece of a hinge having a first piece and a second piece that are relatively rotatably connected via a shaft, the first piece to a side frame and the second piece to a door, a convex portion protruding forward from a wall surface is provided on the side frame, the center of the shaft is arranged behind a front surface line of the convex portion of the side frame, the second piece includes a mounting plate attached to the door, a second piece main body provided with a cylindrical portion into which the shaft is inserted, and an intermediate plate disposed between the mounting plate and the second piece main body, A hinge mounting structure in which the mounting plate is position-adjustable with respect to the second piece main body so that the position of the door in the front-rear direction, up-down direction, and left-right direction can be adjusted.

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