JP4855775B2 - Hidden hinge with three-way fine adjustment function - Google Patents

Description

The present invention relates to a hidden hinge that is detachably connected to the outer surface of a main body, with two directions being incorporated in the main body and having one direction as an independent component, among three fine adjustment functions.

In the opening and closing device provided in the opening, when the door constituting the device is opened and closed, the shape of the connecting metal fitting used between the door and the frame is caused by the deterioration in the appearance of the surroundings including the opening and closing device or by the protruding portion Hidden hinges are used when safety concerns are a concern. For example, in the case of a folding door in which a plurality of door plates are connected so as to be foldable in the lateral direction and opened to form a wide partition plate, and when closed, the doors overlap on one door plate, a hidden hinge is used for the connecting portion. Since this hidden hinge is made compact, it cannot be seen from the outside when it is closed, and when it is opened, the arm protrudes slightly from the mounting part, which may affect the appearance and safety. Almost no.

Hidden hinges store and fix most of the door-side and frame-side main members that are connected by arms in holes that are opened in the door and frame. In many cases, the frame side arm support is housed in a die-cast casing. In the hidden hinge of Patent Document 1, the laminated thin plate arms are pivotably intersected, one end of each arm is pivotally connected to the inside of the casing, and the link end is connected via the link on the other end. It is a structure that is rotatably connected to the inside of the casing.

In the hidden hinge of Patent Document 2, approximately the center of two link members are pivotally connected to each other, one end of each of the members is pivotally connected to the inside of the casing, and the other end is connected to the inside of the casing. With a structure that is slidably incorporated in the groove, position adjustment in one direction is possible. In the hidden hinge of Patent Document 3, approximately the center of two hinge members are rotatably connected to each other, one end of each of the members is rotatably connected to the inside of the casing, and the other end is connected to the inside of the casing. Built in a slidable manner in the groove, it incorporates a bi-directional position adjustment function using an eccentric body.
JP-A-2-240384 JP-A-6-288139 JP 2003-184403 A

Since the hidden hinge may require a load-bearing performance of about 40 kg, there is a problem regarding durability in the operation part that rotates and slides. In Patent Document 1, a link motion obtained by connecting two to four link members is used for an opening / closing operation, so that the weight of a door or the like is supported by the link member having a complicated structure and the member support portion as a whole. Patent Documents 2 and 3 are precision products in which a storage part such as a link member, a support part, and a casing is formed by a method that can be seen as casting and machined. However, it is difficult to say that the material is strong and is used for a long time. Then, there is a concern that the fitting portion of the member is worn and a stable opening / closing operation cannot be obtained.

The hidden hinge has a problem relating to workability because it is mounted while the support portion is stored in the holes opened on the door side and the frame side. Unlike other types of hinges, the work space is limited, so a fine adjustment function for the mounting position is indispensable. If this function is insufficient, the shape and weight of movable members such as doors are also related, and it is very difficult to carry out the work alone, and a plurality of people are required. That is, fine adjustment is performed in the three directions of left, right, front, back, and top, but even if the function in any direction is insufficient, the temporary fixing work is greatly hindered. Patent Documents 2 and 3 disclose hinge technology with a fine adjustment function, but it is not sufficient for temporary fixing work in up to two directions.

Compared with hinges that use slats, the structure of hidden hinges is far more complex, and the cost of production cannot be overlooked. The concealed hinge shown in the patent literature is considered to incorporate many casting methods and machining processes into the production of the main member from its shape, so it is difficult to realize cost reduction for many parts only by mass production. The present invention has succeeded in developing a hidden hinge that solves the above problems. Details will be described below.

The present invention has at least two intersecting hinge arms (2), a door side support part (3) attached to the door, and a frame side support part (4) attached to the frame, and the door side support part (3) includes a door-side support plate (5) formed by bending a central portion of the metal plate widely into a U-shape, a door-side sliding plate (7) inserted into the bent portion, and the door-side sliding A frame side support plate comprising a hinge arm door side support (9) fixed to a plate (7), wherein the frame side support portion (4) is formed by bending a central portion of a metal plate into a wide U-shape. (6), a frame side sliding plate (8) inserted into the bent portion, and a frame side support (10) of a hinge arm fixed to the frame side sliding plate (8), The hinge arm (2) is pivotally connected in the vicinity of the center of the hinge arm, and the support (9, 1) of the hinge arm is moved by the movement of the hinge arm (2). ) In a concealed hinge having an opening / closing bracket for changing the relative position from the opposed state to the parallel state, the door side sliding plate (7) or the frame side sliding plate (8) is replaced with the door side supporting plate (5). Alternatively, the door-side sliding plate (7) or the frame-side sliding plate (8) and the door are finely adjusted by moving the frame-side supporting plate (6) in the front-rear direction. The concealed hinge is adjusted in the horizontal direction by the back and forth movement of the adjustment bolt (13) sandwiched between the side support plate (5) or the frame side support plate (6), and further slides on each other in the vertical direction. The vertical fine adjustment device (15) having two wedges (68, 72) that move in an independent manner and is fixed to a frame separately from the main body of the hidden hinge (1) is provided on the door. Side formed by bending the U-shaped side support plate (5) or the frame side support plate (6) It is circumscribed (35, 47), wherein the perpendicular sliding movement of the wedge (68, 72) performs the vertical adjustment of the hidden hinge by raising or lowering the side (35, 47), characterized in that This is a hidden hinge with a three-way fine adjustment function.

The hidden hinge of the present invention provided the following effects with respect to durability and workability.
1) Many of the main members were manufactured by sheet metal working of steel plates. As a result, the durability could be improved with the toughness of the steel sheet.
2) Use of steel plates that are easy to obtain and process contributed to cost reduction.
3) The three-way fine adjustment function enables temporary work, and as a result, one worker can proceed with the installation work.
4) Since the three-way fine adjustment can be performed with a simple tool driver, adjustment of the mounting position has been facilitated.
5) Of the three-way fine adjustment device, the front / rear and left / right directions are built in the hinge, but the vertical direction is fixed separately from the hinge, and the hinge main body is detachably circumscribed. When it is desirable to change the position of the adjusting device in the usage state, the position can be changed quickly, so that the adjustment work can be facilitated.
6) Since the vertical fine adjustment device is an independent structure, there is no need for left and right hinges.

The present invention relates to a three-piece concealed hinge in which one hinge arm is sandwiched between two hinge arms and the vicinity of the center of each hinge arm is rotatably connected. Normally, hinges that use blades can use the surrounding space widely during installation, but hidden hinges have the restriction that the supporting part is stored in the machining hole of the mounting partner, so the usage range of the surrounding space is limited. Limited. Therefore, although it is not necessary to limit to the three-piece structure, the increase in the number of hinge arms only complicates the internal structure of the support portion. Therefore, the three-piece structure is suitable for a normal-sized fitting unless it is a large or heavy fitting. It can be said.

As mentioned above, the hidden hinge stores the support part in the machining hole of the mounting partner, so there is almost no need for fine adjustment if the mounting hole is made of metal that has been precisely machined in advance. In some cases fine tuning is essential. However, it is difficult to store all three fine adjustment functions in the support portion. In addition, since the manner in which the vertical load is applied may change depending on the mounting state of the hidden hinge, in the present invention, the fine adjustment device in the vertical direction is used as an independent structure, and the fine adjustment device is adapted to the mounting state of the hidden hinge. It is a circumscribed type that can easily change the mounting position of the device.

The vertical fine adjustment device for an independent structure inserts a wedge having a protrusion at the tip and a bevel at the rear end into the outer jacket with a connecting plate, and has a thin thickness on the wedge and a bevel at the tip opposite to the bevel. When the wedge moves in the axial direction of the adjusting bolt by rotating the adjusting bolt, the connecting wedge is connected to the connecting plate surface. As a result of the movement in a direction parallel to the edge, the protrusions and intrusions at the tip of the wedge push the support plates on the door side and the frame side, thereby achieving the purpose of fine adjustment. Also, the fine adjustment device in the vertical direction makes it easy to position the fine adjustment device with respect to the support plate by fitting the holes provided on the bent side surfaces of the support plate constituting the hidden hinge and the projections at the wedge tip, Progress of the temporary fixing work is also facilitated.

The support plate, the sliding plate and the hinge arm of the main members constituting the hidden hinge are related to the durability of the hidden hinge. Therefore, a metal plate selected from a stainless steel plate or a steel plate having toughness was used, and it was formed by performing various processes such as required sheet metal, holes and plating. In addition, it is desirable to use a hinge arm support that is a main member for smoothly moving the hinge arm, which is integrally molded with a synthetic resin such as an engineering resin in order to ensure molding accuracy and durability comparable to a metal plate. . In addition, the use of steel plate products and resin integrated molded products contributes to cost reduction.

FIG. 1 is a front view of a hidden hinge in a completed state. FIG. 2 is a front view with the decorative plate removed. FIG. 3 is a left side view of the door side support portion. FIG. 4 is a right side view of the frame side support portion. FIG. 5 is a rear view of the vertical fine adjustment device circumscribing the main body. FIG. 6 is a plan view of the main body. FIG. 7 is an exploded perspective view excluding the vertical fine adjustment device. FIG. 8 (A, B, C, D) is a state diagram of the arm at 0 °, about 45 °, 90 °, and 180 °. 9A and 9B are perspective views showing only the left and right and front and rear two-way fine adjustment devices. FIG. 10 is an exploded perspective view of the vertical fine adjustment device.

As shown in FIG. 1 and FIG. 2, the hidden hinge 1 uses three identical hinge arms 2, sandwiches one hinge arm with two hinge arms, and rotates around the center of each hinge arm The pins 18 are freely connected. Both ends of each hinge arm are arranged so as to straddle both the door-side support portion 3 and the frame-side support portion 4. The appearance of the door-side support part and the frame-side support part is similar to that except for the number of hinge arms, and is used for fine adjustment in the left-right direction even when the door-side decorative board 11 and the frame-side decorative board 12 are attached. The screw 13 and the fine adjustment cam 14 in the front-rear direction can be seen. When the frame side decorative plate is removed, the fine adjustment screw 79 in the vertical direction appears.

As shown in FIGS. 2 and 3, the door-side support portion 3 is arranged with the left and right sliding plates 7 leaving a gap on the bottom surface 21 of the door-side support plate 5 having a wide central portion bent into a U shape. The door side support 9 of the hinge arm is overlapped and fixed on the sliding plate. Further, the hinge arm 2 is attached to the door side support using a pin, and the flange 24 of the left and right adjustment screw 13 is sandwiched between the fitting hole 22 on the bottom surface of the door side support plate and the screw hole 23 of the left and right sliding plate. Then, fine adjustment is performed by turning the left and right adjustment screw heads 25 with a screwdriver from the door-side support that is superimposed on the left and right sliding plates.

As shown in FIGS. 2 and 4, the frame-side support portion 4 has a front-rear sliding plate 8 stacked on the bottom surface 30 of the frame-side support plate 6 having a wide central portion bent into a U shape. The frame side support body 10 of the hinge arm is fitted and overlapped, and the frame side guide pin 32 is fixed to the frame side support plate, the front and rear sliding plates, and all the hinge arms. An adjustment cam sandwiched between the bottom surface of the frame side support plate and the front / rear sliding plate is held by the hinge pin with the hinge pin, and the cam head 33 is mounted on the frame side support member superimposed on the front / rear sliding plate with a screwdriver. To make fine adjustments, and after adjustment, fix with the screw 34 on the opposite side across the hinge arm.

The three-way fine adjustment function of the mounting position provided in the hidden hinge 1 is built in the door side support part 3 and the frame side support part 4 of the hinge arm in the left and right and front and rear directions, as shown in FIGS. The remaining one-way up / down fine adjustment device 15 is detachably connected to the projecting side surface 35 of the frame-side support plate 6 constituting the frame-side support portion of the hidden hinge, and is fixed separately from the hinge main body. Since the vertical fine adjustment device can come into contact with any of the side surfaces of the plate-supported portion of the frame side support, the fine adjustment function in the vertical direction can be adjusted so as not to interfere with the fine adjustment function in the vertical direction in accordance with the change in the mounting direction of the hidden hinge. The mounting position of the adjusting device can be easily changed.

The structure of the hidden hinge 1 will be described in detail with reference to FIG. A plurality of screw holes 37 for fixing the concealed hinge to the door are provided on the flange 36 surface of the door-side support plate 5, and the fitting hole 22 with the tip 38 of the left and right fine adjustment screw 13 and the hinge are provided on the bottom surface 21. A fitting hole 40 with the column 39 of the door side support 9 of the arm and a screw hole 41 for the fixing screw 34 after fine adjustment are provided. A plurality of elongated holes 46 are provided on the surface of the flange 45 of the frame side support plate 6 in preparation for fine adjustment in the vertical direction, and the protrusions of the vertical fine adjustment device 15 are formed on the side face 47 of the protruding portion bent in a U shape. The fitting hole 48 is provided. The bottom surface 30 is provided with a fitting hole 50 between a long hole 49 to be fitted to the front end of the fine adjustment cam 14 in the front-rear direction and a sliding hole of the frame side support 10 of the hinge arm.

The left and right adjustment screws 13 are inserted into the inner surfaces of the protruding portions of the door-side support plate 5 that are bent in a U shape, and the left and right sliding plates 7 are fitted. When the door side support 9 of the hinge arm is fitted into the left and right sliding plates, the two cylinders 39 protruding from the bottom surface of the support are inserted into the holes 40 and 50 of the left and right sliding plates and the door side support plate. An adjustment screw is passed through the hole 42 to stabilize the movement during fine adjustment. Before assembling the door side support body of the hinge arm to the left and right sliding plates, a washer 52 and a separation tube 53 are connected to the hinge arm so as to be rotatable by the hinge 18, and then the two hinge arm ends 16 and one side are connected. The hinge arm end 17 is connected to the inside of the door-side support. A pin 55 is inserted into the hinge arm end on the two sides, and the pin slides freely along a groove in the sliding hole 56 of the support body in a specific direction. A hinge arm end on one side is rotatably held by a pin 59 using the hole 57 and the hole 58 of the left and right sliding plates between the sliding holes.

The front / rear adjustment cam 14 is inserted into the inner surface of the protruding portion of the frame side support plate 6 bent into a U shape, and the front / rear sliding plate 8 bent into a U shape for fine adjustment is fitted. The frame side support 10 of the hinge arm is placed on the front and rear sliding plates, and both are fixed. When both are combined, the sliding hole 60 of the support penetrates the left and right sliding plates and the door side supporting plate. Before assembling the frame side support of the hinge arm to the left and right sliding plates, the hinge arm to be assembled to the frame side support inserts a pin 55 into the hinge arm end 16 on one side, and the pin is inserted into the frame side support. The arm end is slid freely in a specific direction along the groove in the sliding hole. The two hinge arm ends 17 are rotatably held by pins 63 using the holes 61 of the front and rear sliding plates and the holes 62 of the frame side support.

The movement of the ends 16 and 17 of the hinge arm 2 connected to the door-side support portion and the frame-side support portion so as to be rotatable and slidable will be described with reference to FIG. 8 (A, B, C, D). The figure (A) is 0 ° with the door in the frame, the figure (B) is about 45 °, the figure (C) is 90 °, and the figure (D) is 180 ° open. FIG. The hinge arm in which the intersection is pivotally connected by a pin 18 holds one end 16 at a fixed position in the hinge arm support so as to be pivotable by a pin 55 and allows the other end 17 to slide freely. Therefore, when the hinge is closed, one end of the hinge arm sinks into the support portion and changes from the state shown in FIG.

The movement of the left / right and front / rear two-way fine adjustment function will be described with reference to FIGS. The fine adjustment in the left-right direction in FIG. 4A is performed by rotating the left-right adjustment bolt 13 sandwiched between the door-side support plate 5 and the left-right sliding plate 7. First, the screws 26 on both sides of the adjustment bolts are loosened and the adjustment bolts screwed into the screw holes 23 of the left and right sliding plates are rotated. As a result, the door side support 9 of the left and right sliding plates and the hinge arm is moved to the door side support plate. , And moves in the direction of the arrow perpendicular to the bottom surface 21 for fine adjustment in the left-right direction. After the movement, the door side support plate and the left and right sliding plates are fixed by tightening the screws on both sides. The adjustment bolt is moved from above the door-side decorative plate 11 with a screwdriver.

The fine adjustment in the front-rear direction shown in FIG.
It is sandwiched between the frame side support plate 6 and the frame side support 10 of the hinge arm, and the adjustment cam is rotated by loosening the screw 34 on the side of the adjustment cam. Since the eccentric tip of the adjustment cam moves along the long hole 49 of the frame side support plate due to the rotation, the integrated front and rear sliding plate and the frame side support 10 of the hinge arm move along the side surface of the protruding portion of the frame side support plate. Fine adjustment in the front-rear direction can be performed by moving the frame-side support plate bottom surface 30 in the direction of the arrow. The screws are tightened to fix the frame side support plate and the front and rear sliding plates after moving along the long holes 51 of the front and rear sliding plates. The adjustment cam is moved with a screwdriver from the top of the frame-side decorative plate 12.

The vertical fine adjustment device 15 in FIG. 10 is an independent structure, and is fixed to the frame separately from the hidden hinge 1 main body only by partly contacting the frame side support plate 6. A female wedge 68 in which a slant 70 is formed on the rear end of the projection 69 at the front end of the body which slides on the inner surface of the outer jacket and moves parallel to the connection plate surface, in a jacket 67 having a connection plate 66 in contact with the frame side support plate. A male wedge 72 having a thin body body 72 having a hole 75 through which a bolt 75 for vertical adjustment that is screwed with the nut 75 is accommodated at the rear end of the opposite inclined surface 73 at the same angle as the inclined surface. The dovetail 71 and the dovetail 76 are used for connection. The connected male and female wedges are inserted into the outer cannula, and an adjusting bolt is inserted through a hole 77 on the outer mantle surface and screwed into the nut, and is passed through the hole 78 in the connecting plate to provide a stopper 80.

When the vertical adjustment bolt 79 is turned, the nut 75 in the male wedge 72 causes the male wedge to move in any direction along the adjustment bolt, and the male wedge slope 73 pushes the slope 70 of the female wedge 68. The projection 69 at the front end of the body pushes the side surface 35 of the frame side support plate 6 constituting the frame side support portion 4 in the direction of the arrow, and finely adjusts the mounting position of the hidden hinge 1 in the vertical direction. The installation of the hidden hinge may require upside down due to the positional relationship between the door and the frame, but in that case, it is necessary to consider the load direction to the vertical fine adjustment device 15, so The fine adjustment device is easy to use. Although it is conceivable to incorporate a vertical adjustment device, it is not preferable because the support structure of the hinge arm is further complicated. If it is built-in, it will cause problems with the left and right sides of the hinge body, affecting usability and production costs.

It is a front view of the hidden hinge of a completion state. Example 1 It is the front view which removed the decorative board. It is a left view of a door side support part. It is a right view of a frame side support part. It is a rear view of the up-down direction fine adjustment apparatus circumscribed with the main body. It is a top view of a main body. It is a disassembled perspective view except an up-down direction fine adjustment device. (A, B, C, D) are state diagrams of the arm at 0 °, about 45 °, 90 °, and 180 °. (A, B) is a perspective view showing only the left and right and front and rear two-way fine adjustment devices. FIG. 3 is an exploded perspective view of the vertical fine adjustment device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hidden hinge 2 Hinge arm 3 Door side support part 4 Frame side support part 5 Door side support plate 6 Frame side support plate 7 Left and right sliding plate 8 Front and rear sliding plate 9 Door side support body 10 Frame side support body 11 Door side Decorative plate 12 Frame-side decorative plate 13 Left / right adjustment screw 14 Front / rear adjustment cam 15 Vertical adjustment device 79 Vertical adjustment screw

Claims (6)

Having at least two intersecting hinge arms (2), a door-side support (3) attached to the door, and a frame-side support (4) attached to the frame;
The door-side support portion (3) includes a door-side support plate (5) formed by bending a central portion of the metal plate into a wide U-shape, a door-side sliding plate (7) inserted into the bent portion, The door-side support (9) of the hinge arm fixed to the door-side sliding plate (7),
The frame side support portion (4) includes a frame side support plate (6) formed by bending a central portion of a metal plate into a wide U-shape, a frame side sliding plate (8) inserted into the bent portion, A frame side support (10) of a hinge arm fixed to the frame side sliding plate (8),
The hinge arm (2) is pivotally connected in the vicinity of the center of the hinge arm, and the movement of the hinge arm (2) moves the relative positions of the two supports (9, 10) of the hinge arm from the opposed state. In the concealed hinge (1) with an opening and closing bracket that changes to a parallel state,
The hidden hinge (1) by moving the door side sliding plate (7) or the frame side sliding plate (8) relative to the door side supporting plate (5) or the frame side supporting plate (6). Make fine adjustments in the front-rear direction of
Before and after the adjusting bolt (13) sandwiched between the door side sliding plate (7) or the frame side sliding plate (8) and the door side supporting plate (5) or the frame side supporting plate (6) Adjust the left and right direction of the hidden hinge (1)
Further comprising two wedges which moves in slide relative to each other in the vertical direction (68, 72), I independent structures der, the hidden hinge (1) in the vertical direction is fixed to separately frame from the main body fine adjustment device (15), is circumscribed to the U-shaped side surface which is formed by bending of the door-side supporting plate (5) or the frame-side supporting plate (6) (35, 47), said wedge (68, 72 ), The vertical sliding movement of the hidden hinge (1) is adjusted by moving the side surfaces (35, 47) up and down .
Hidden hinge with three-way fine adjustment function.   The vertical fine adjustment device (15), which is an independent structure, is detachable with respect to the frame side support plate (6), and is attached to any side surface of the frame side support plate bent into a U shape. The hidden hinge with a three-way fine adjustment function according to claim 1, wherein the hidden hinge can be installed along the same direction. One wedge (68) of the vertical fine adjustment device (15), which is an independent structure, has a projection (69) at the front end of the trunk that slides within the outer jacket (67) with the connecting plate (66). A slope (70) is formed,
The other wedge (72) is fitted with the wedge (68) and a thin sloped body tip at the same angle with a reverse slope (73) and a nut (75) screwed with the adjusting bolt (78) at the rear end. And
3. The structure according to claim 1 or 2, wherein when one of said wedges (72) is moved by rotation of said adjusting bolt (79), said counterpart wedge (68) is also moved, and said protrusion (69) at the wedge tip moves the support plate. Hidden hinge with three-way fine adjustment as described.   The combination of the projection (69) at the tip of the wedge (68) constituting the vertical fine adjustment device (15) and the fitting holes (48) on both side surfaces (35) of the frame side support plate (6) The hidden hinge with a three-way fine adjustment function according to claim 2, which also serves as a hole for determining a positional relationship between the frame side support plate and the fine adjustment device.   Steel plates were used for the hinge arm (2), the door-side support plate (5) and the frame-side support plate (6), and the door-side sliding plate (7) and the frame-side sliding plate (8). The hidden hinge with a three-way fine adjustment function according to any one of claims 1 to 4.   The hidden hinge with a three-way fine adjustment function according to any one of claims 1 to 5, wherein the door side support body (9) and the frame side support body (10) of the hinge arm (2) are formed of synthetic resin.