JP2019127699A - Cover member and door hinge - Google Patents

Abstract

To prevent deformation or the like of a hinge constituent member provided on a door body or frame body even if unexpected external force is applied to a door closer to forcibly close the door body.SOLUTION: A cover member comprises: a first cover part 71 which covers a hinge constituent member 3 adjusting a position of a door body in a predetermined direction relative to a frame body between two hinge constituent members 3, 5 fitted to the frame body and door body fitted with a door body closing device so as to constitute a door hinge 1, and also covers a fixation part 36a of the one hinge constituent member 3 for the frame body or door body; and a second cover part 76 which is coupled to the first cover part 71, and covers an intermediate part 36b of the hinge constituent member 3. The second cover part 76 is fixed to the door body or frame body, and also abuts on the hinge constituent member 3 at the intermediate part 36b to suppress the hinge constituent member 3 from moving to separate from the frame body as force increasing a closing speed of the door body is applied to the door body closing device.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cover member for covering hinge components of a door hinge provided on a frame and a door, and to a door hinge provided with the cover member.

  BACKGROUND Conventionally, there is known a door hinge including a case body and an adjustment plate attached to a frame or a door, and a mounting plate attached to the door or the frame. Of the adjustment plate and the mounting plate, the adjustment plate adjusts the position of the door in at least one of the front-rear direction and the left-right direction (see, for example, Patent Document 1).

  There is also known a door body closing device (hereinafter also referred to as “door closer”) that suppresses the closing speed of the door body at a low speed, that is, the door body closes slowly. The door closer has its main body attached to the upper end of the door and is also attached to the frame defining the opening of the building closed by the door via a link mechanism (for example, Patent Document 2) reference.).

  The case body of the door hinge described in Patent Document 1 is attached to a recess formed on a frame or a door, and the adjustment plate is movable in the longitudinal and lateral directions in the case body by a plurality of screws. Is held by That is, the adjustment plate is moved in the front-rear direction and the left-right direction with respect to the case body by turning the predetermined screw in the tightening direction or the loosening direction. The case body has a claw portion that holds the adjustment plate from both sides in the width direction, and the adjustment plate rotates the predetermined screw in the predetermined direction to adjust the position of the door body in the left-right direction. , Try to rotate around the claws.

JP, 2014-118785, A JP, 2010-19053, A

  As shown in FIG. 12, when the door closer Dc is attached to the door Dp and the frame Df, the door closer Dc is slowly (while reducing the closing speed) while the door Dp is closed by the user. An external force Of may be applied to forcibly close Dp. When the door Dp is forced to close, an unexpected load P in the left-right direction LR acts on the adjustment plate Cp of the door hinge 100 connecting the door Dp and the frame Df, and adjustment is performed. The plate Cp comes into contact with the claw portion N as it floats from the frame body Df. When such a load P repeatedly acts on the adjusting plate Cp, the adjusting plate Cp may be bent (deformed) to interfere with the function (operation) of the door hinge 100.

  Even when the unexpected external force Of acts on the door Dp in the closing direction and the internal resistance of the door closer Dc rises, according to the door closer described in Patent Document 2, for example, opening and closing of the relief valve By freely changing the operation timing according to the internal pressure, the increase in the internal resistance of the door closer Dc is avoided, and the generation of the load P that acts on the door hinge 100 by an unexpected (forced) external force Of. To prevent

  However, in the door closer Dc described in Patent Document 2, when the unexpected external force Of acts on the door Dp in the closing direction, the structure of the door closer Dc itself is changed to prevent the adjustment plate Cp from being deformed or the like. ing. Furthermore, the existing door closer Dc must be replaced with a new door closer Dc capable of adjusting the internal resistance. The replacement of the door closer Dc has a large burden on both the work surface and the cost as a countermeasure for avoiding deformation of the adjustment plate Cp constituting the door hinge 100.

  Therefore, the present invention has been made in view of the above problems, and prevents deformation or the like of the hinge constituent member even when the door closer is forcibly closed by applying an unexpected external force to the door closer. It is an object of the present invention to provide a cover member that can be used and a door hinge provided with the cover member.

  In order to achieve the above object, the cover member according to the present invention is attached to each of the frame attached with the door closing device for closing the door while reducing the closing speed and the door, and is connected to each other Of the two hinge constituent members constituting the hinge for door, the cover member covers one of the hinge constituent members for adjusting the position of the door body in a predetermined direction with respect to the frame body, the door body or the frame body A first cover portion covering a fixed portion of the one hinge constituent member with respect to the first cover portion, and at least partially connected to the first cover portion, between the fixed portion and the connecting portion of the two hinge constituent members A second cover portion that at least partially covers an intermediate portion of the one hinge constituent member, the second cover portion being fixed to the door body or the frame body, and at the intermediate portion Note that a force that abuts one hinge component and accelerates the closing speed of the door is applied to the door closing device to suppress movement of the one hinge component away from the frame or the door It is characterized by

  The second cover portion may include at least one contact member that contacts the intermediate portion.

  Further, the contact member may be a tapered member having a cross section formed so as to continuously change the thickness in the direction in which the contact member abuts on the intermediate portion.

  Further, the second cover portion is formed with at least one screwing hole having a female screw portion formed on an inner peripheral surface, and the contact member is a side facing the one hinge constituent member. It is good to have the external thread part screwed together with the internal thread part of the screw hole on the opposite side.

  The male screw portion of the contact member may be provided eccentrically with respect to the axis of the contact member.

  In addition, fixing holes for inserting fixing members for fixing the second cover portion to the frame or the door are formed at end portions on both sides in the longitudinal direction of the second cover portion, and the screw is formed. The axial centers of the joint hole and the fixing hole are preferably located on the same imaginary line in the longitudinal direction of the second cover portion.

  Furthermore, in order to achieve the above object, the cover member according to the present invention is attached to each of the frame body to which the door body closing device for closing the door body while reducing the closing speed and the door body are connected to each other. Among the two hinge constituent members constituting the door hinge, the cover member covers one hinge constituent member for adjusting the position of the door body in a predetermined direction with respect to the frame body, the cover body or Affixing to the one hinge component between the fixed part of the one hinge component relative to the door or the frame and the connection part of the two hinge components, fixed to the frame, and A force for accelerating the closing speed of the door is applied to the door closing device to suppress movement of the one hinge component away from the frame or the door.

  Furthermore, in order to achieve the above-mentioned object, the door hinge according to the present invention is attached to each of the frame body and the door body to which the door body closing device for closing the door body is attached while reducing the closing speed. Two hinge constituent members to be connected; and a cover member that covers one of the two hinge constituent members and covers one hinge constituent member that adjusts the position of the door body in a predetermined direction with respect to the frame body, The cover member is at least partially connected to the first cover portion covering the fixed portion of the hinge component fixed to the door body or the frame, and the cover portion is at least partially connected. A second cover portion that abuts on the middle portion of the one hinge component between the other and the connection point of the other hinge component and at least partially covers the middle portion; Hippopotamus The portion is fixed to the door body or the frame body and abuts against the one hinge component at the intermediate portion, and a force for accelerating the closing speed of the door body is applied to the door body closing device. The one hinge constituent member is restrained from moving away from the frame body or the door body.

  According to the present invention, even when the door closer is forcibly closed due to an unexpected external force applied to the door closer, it is possible to prevent deformation of the hinge constituent member.

It is a schematic perspective view which shows the hinge for doors which concerns on this Embodiment. It is a disassembled perspective view which expands and shows the hinge structural member by the side of the frame of the hinge for doors shown in FIG. It is a figure for demonstrating the structure of a cover plate. It is a disassembled perspective view of the cover plate shown in the state which removed the contact member of the stopper cover part. It is a perspective view of the contact member attached to the cover plate. It is a figure which shows the contact state of the contact member with respect to an adjustment plate. It is a figure which shows another contact state of the contact member with respect to an adjustment plate. It is a figure which shows another contact state of the contact member with respect to an adjustment plate. It is a figure for demonstrating the influence by the load in the door hinge which is not equipped with a cover plate. It is a figure for demonstrating the influence by the load in the door hinge provided with the cover plate. It is a figure for demonstrating the endurance test with respect to the hinge for doors. It is the schematic for demonstrating the load which acts on a door hinge when it is going to forcedly close a door closer.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The embodiment shown below is one example, and can take various forms within the scope of the present invention.

<Structure of door hinge>
FIG. 1 is a schematic perspective view showing a door hinge according to the present embodiment, wherein (a) shows a state in which the door hinge is attached to the frame body and the door body, and (b) The disassembled one of two hinge components attached to the frame which comprises a door hinge is shown. FIG. 2 is an exploded perspective view showing the hinge component shown in FIG. 1 (b) in an enlarged manner. 3A and 3B are diagrams for explaining the configuration of the cover plate, FIG. 3A is a plan view of the cover plate, FIG. 3B is a side view of the cover plate, and FIG. 3C is a cover plate. Of the cover plate as viewed from the side of the stopper cover, and (d) is a view of the cover plate as viewed from the side of the stopper cover. FIG. 4 is a perspective view of the cover plate shown with the contact member of the stopper cover removed. FIG. 5 is a perspective view of the contact member attached to the cover plate, (a) is a perspective view seen from the front side, and (b) is a perspective view seen from the back side.

  As shown in FIG. 1, the door hinge 1 according to the present embodiment is attached to the door body Dp and the frame body Df constituting the door and allows the door body Dp to be opened and closed with respect to the frame body Df. . The door hinge 1 includes two hinge components 3 and 5 and a cover plate (cover member) 7 that covers a predetermined portion of the hinge component 3. The hinge constituent members 3 and 5 are connected to each other via a connecting pin (not shown). The door hinge 1 is attached to the door Dp and the frame Df defining an opening that is opened and closed by the door Dp among the doors, and supports the door Dp so as to be able to open and close the frame Df. doing.

  In the following, a door closer Dc (see FIG. 12) to be closed while reducing the closing speed of the open door Dp is attached to the door on which the door hinge 1 according to the present embodiment is attached. It is assumed. However, the door hinge 1 can be applied to any door regardless of the presence or absence of a door closer.

  Hereinafter, for convenience of explanation, in a state in which the door Dp is closed, the thickness direction of the door Dp is indicated by “FB” with the front-rear direction. In addition, the width direction of the door body Dp is indicated by “LR” as the left-right direction. Moreover, the length direction of the door body Dp is indicated by “UD” in the vertical direction.

[Hinge component]
Of the two hinge constituent members 3 and 5, the hinge constituent member 3 is fitted into recesses K (only the upper side is shown) that are processed at two upper and lower predetermined portions in the height direction of the frame Df. It is fixed. The hinge constituent member 3 includes a case main body 31 that is fixedly fixed to the recess K, and an adjustment plate 36 that is attached to the case main body 31 so as to be movable in the front-rear direction FB and the left-right direction LR.

  As shown in FIG. 2, the case body 31 has fixed flange portions 32 and 33 that are fixed to the recesses K at both ends in the longitudinal direction. The fixing flange portions 32 and 33 are provided with two through holes 32a and 33a through which screws (not shown) for fixing the case main body 31 to the frame body Df in the concave portion K are inserted, and the cover plate 7 is fixed to the flange portion. Through holes 32b and 33b through which screws (not shown) for fixing to the case main body 31 through 32 and 33 are inserted.

  The case main body 31 has an accommodating portion 34 having a U-shaped cross section for accommodating the adjustment plate 36 between the fixed flange portions 32 and 33. The case main body 31 has a guide portion 35 having a substantially U-shaped cross section provided on one side of the housing portion 34. The guide portion 35 is a portion that guides the case main body 31 so as to accommodate the adjustment plate 36.

  The guide portion 35 has a flat bottom portion 35 a and a pair of side portions 35 b erected from both ends of the bottom portion 35 a toward one direction in the left-right direction LR. In a state in which the hinge component 3 is accommodated in the recess K of the frame body Df, the end surface 35bt of the side portion 35b of the guide portion 35 is left and right on the opening side of the recess K relative to the end surfaces 32c, 33c of the fixing flange portions 32, 33. It projects in one direction of the direction LR.

  The case main body 31 has claws 35 n protruding in the longitudinal direction of the case main body 31 so as to face each other in the vicinity of the connection portion between the fixing flanges 32 and 33 and the guide portion 35. When the adjustment plate 36 is accommodated in the accommodation portion 34 of the case main body 31, the claws 35 n have a role of pressing the adjustment plate 36 from the front surface side. The adjusting plate 36 has a substantially rectangular plate-like portion 37 and a cylindrical portion (connection portion) 38. The cylindrical portion 38 is provided at one end portion of the plate-like portion 37 protruding from the guide portion 35 when the adjustment plate 36 is accommodated in the accommodation portion 34 and the guide portion 35 of the case main body 31.

  On the side of the other end of the plate-like portion 37, a U-shaped notch 37a cut and formed toward the cylindrical portion 38 is formed. An adjustment bolt B1 for adjusting the position of the door body Dp with respect to the frame body Df in the left-right direction LR, specifically, the position of the adjustment plate 36 with respect to the case body 31 in the left-right direction LR is inserted into the notch 37a and locked. It is supposed to be

  An oblong hole 37b is provided between the notch 37a and the cylindrical portion 38 at a position close to the notch 37a, with the direction perpendicular to the center line Y-Y of the adjustment plate 36 as the major axis. The position of the door Dp relative to the frame Df in the oblong hole 37b in the longitudinal direction FB, and more specifically, of the cam bolt B2 for adjusting the position of the adjustment plate 36 relative to the case main body 31 in the longitudinal direction FB The cam portion C is fitted.

  Furthermore, in the plate-like portion 37, a pair of elongated holes 37c each having a major axis in the direction of the center line Y-Y are provided at positions separated from the elongated holes 37b by an appropriate distance. The oval hole 37c is an insertion hole for the fixing bolt B3 for fixing the adjusting plate 36 to the case main body 31, and the adjustment plate 36 of the fixing bolt B3 is used to adjust the back and forth direction FB of the door Dp relative to the frame Df. It is formed in an oval shape to enable movement.

  When the insertion of the adjustment plate 36 to the housing part 34 and the guide part 35 of the case body 31 is completed, the plate-like part 37 is formed with a recessed part 37d in which the claw part 35n is accommodated at a position facing the claw part 35n. ing. Here, for convenience, a portion of the plate-like portion 37 on the side of the notch 37a from the imaginary line L1 connecting the depressed portions 37d is referred to as a "fixed portion 36a", and a plate-like portion between the imaginary line L1 and the cylindrical portion 38. Part 37 is referred to as "intermediate part 36b". The fixed portion 36a is a portion where the adjustment plate 36 is fixed to the case body 31 and covered by the cover portion 71 of the cover plate 7 described later, and the intermediate portion 36b is not covered by the cover portion 71, and the stopper cover portion 76 abuts and is at least partially covered.

  Among the two hinge components 3, 5, as shown in FIG. 1A, the hinge components 5 are fixed at two places of upper and lower predetermined portions in the height direction of the door Dp, The hinge component 3 attached to the frame Df side is connected to a connecting pin (not shown). The hinge component 5 on the side of the door Dp is supported by the hinge component 3 on the side of the frame Df so as to be capable of opening and closing via the connection pin.

  The hinge constituent member 5 has a flat mounting plate 51 attached to the door body Dp and a cylindrical portion (connecting portion) 52. The mounting plate 51 is formed with four holes 51 a through which fixing members such as screws for mounting the mounting plate 51 to the door Dp are inserted. A connecting pin is accommodated in the cylindrical portion 52, and the connecting pin is inserted into the cylindrical portion 38 of the hinge constituent member 3, whereby the hinge constituent member 5 is connected to the hinge constituent member 3 via the connecting pin. It will be

[Cover plate]
The cover plate 7 is a cover member that covers the case body 31 and the adjustment plate 36 when the case body 31 is fixed to the recess K of the frame body Df together with the adjustment plate 36. As shown in FIG. 3, the cover plate 7 is formed in line symmetry with respect to the center line XX along the short direction at the center in the longitudinal direction.

  As shown in FIGS. 3 and 4, the cover plate 7 includes a cover portion (first cover portion) 71 having a substantially rectangular shape in plan view, and a substantially oval shape in plan view partially connected to the cover portion 71. And a stopper cover portion (second cover portion) 76 of FIG.

  The cover portion 71 is a decorative cover that covers the fixing flange portions 32 and 33 of the case body 31 and the fixing portion 36 a of the adjustment plate 36. At both ends in the longitudinal direction of the cover portion 71, counterbore that communicates with the through holes 32 b and 33 b of the fixing flange portions 32 and 33 of the case body 31 in a state where the cover plate 7 is attached to the fixing flange portions 32 and 33. A pair of fixing holes 71a are formed. The cover plate 7 is attached to the case body 31 by screwing the tip of the screw into the frame Df in a state where the through holes 32b and 33b of the fixing flange portions 32 and 33 and the fixing hole 71a of the cover plate 7 are aligned. It is done.

  In a state where the cover plate 7 is attached to the fixing flanges 32 and 33, an oval hole 71b communicating with the notch 37a is provided at a position facing the notch 37a of the adjustment plate 36 at the center of the cover 71. It is formed. The major axis of the oblong hole 71 b extends in the direction along the center line XX of the cover plate 7. Therefore, if a predetermined tool is inserted through the oblong hole 71b of the cover plate 7, the adjustment bolt B1 inserted in the notch 37a of the adjustment plate 36 can be adjusted (turned).

  In a state where the cover plate 7 is attached to the fixing flange portions 32 and 33, a notch 71c that is aligned with the oval hole 37b at a position facing the oval hole 37b of the adjustment plate 36 at the center of the cover portion 71. Is formed. The notch 71 c is formed by cutting away from the edge where the stopper cover 76 is integrally connected to the cover 71 toward the oval hole 71 b. Therefore, if a predetermined tool is inserted through the notch 71c of the cover plate 7, the cammed bolt B2 inserted in the oblong hole 37b of the adjustment plate 36 can be adjusted (turned).

  In a state where the cover plate 7 is attached to the fixing flanges 32, 33, a pair of round holes 71d aligned with the long holes 37c are formed at positions facing the pair of long holes 37c of the adjustment plate 36. ing. Therefore, it is possible to adjust (turn) the fixing bolt B3 inserted into the oblong hole 37c of the adjustment plate 36 by inserting a predetermined tool through the circular hole 71d of the cover plate 7.

  The cover portion 71 has a pair of connecting portions 72 sandwiching the notch 71c on the side where the notch 71c of the cover plate 7 is formed. The cover portion 71 and the stopper cover portion 76 are connected to each other in a substantially S shape in a side view through a pair of connecting portions 72. The cover portion 71 and the stopper cover portion 76 are in a positional relationship of being in a stepped and parallel manner. The cover 71 faces the fixed flanges 32 and 33 of the case body 31 and the fixed portion 36 a of the adjustment plate 36, and the stopper cover 76 faces the guide 35 of the case body 31 and the intermediate portion 36 b of the adjustment plate 36. To do.

  In the cover portion 71, a pair of notches 71 e are formed in the outer portion of the connecting portion 72 on the side connected to the stopper cover portion 76. The pair of notches 71e are formed at positions that sandwich the notch 71c and that face the claw portions 35n of the case body 31 that holds the adjustment plate 36. That is, even when the cover plate 7 is attached to the fixing flanges 32 and 33, the claws 35n do not contact the cover 71 by the notches 71e, and the attachment of the cover plate 7 is not inhibited. .

  The stopper cover portion 76 of the cover plate 7 covers all the middle portion 36b and the side portion 35b of the adjustment plate 36 in the vertical direction UD and at least partially covers in the front-rear direction FB to face the middle portion 36b. It has become. The stopper cover portion 76 is a portion that suppresses the movement (raising) of the intermediate portion 36b of the adjustment plate 36 from the frame body Df, more specifically, in a direction away from the case body 31. In a state where the cover plate 7 is attached, the stopper cover portion 76 has two contact members 77 on the surface facing the adjustment plate 36.

  The stopper cover portion 76 is connected to the cover portion 71 via the connecting portion 72. The stopper cover portion 76 extends in a direction intersecting the guide portion 35 and the adjustment plate 36 in the case body 31 of the hinge constituting member 3, that is, in the vertical direction UD, and directly to the frame Df at both ends in the vertical direction UD. It is fixed (see FIG. 1 (a)). At both ends of the stopper cover portion 76, a pair of fixed holes 76a with countersinks into which fixing bolts (not shown) for fixing the stopper cover portion 76 to the frame body Df are inserted are formed.

  A pair of screwing holes 76b for attaching the contact member 77 by screwing are formed between the pair of fixing holes 76a in the stopper cover 76. A female screw portion 76bs is formed on the inner peripheral surface of the screw hole 76b, and the contact member 77 is attached to the stopper cover portion 76 by screwing through the female screw portion 76bs. The axes of the pair of fixing holes 76 a and the pair of screw holes 76 b are located on the same imaginary line L 2 along the longitudinal direction of the stopper cover 76. The fixing hole 76a and the screwing hole 76b in the stopper cover portion 76 are arranged so as to be line symmetric with respect to the center line XX.

  As shown in FIG. 5, the contact member 77 is formed in a circular shape in plan view, for example, with a resin such as polyphenylene ether (PPE) or polyacetal (POM) or a metal such as zinc. The contact member 77 includes a disc part 78 and a projecting part 79 attached to one surface of the disc part 78. For convenience of explanation, the surface of the disc portion 78 to which the protruding portion 79 is attached is referred to as a “first surface 78a”, and the opposite surface (the surface facing the adjustment plate 36) is referred to as a “second surface 78b”.

  The disc part 78 has a thick part 78d having a large thickness and a thin part 78t having a thin thickness, and has a tapered cross section so as to continuously change from the thick part 78d toward the thin part 78t. It is formed. The protruding portion 79 is a cylindrical portion protruding from the first surface 78a, and an external thread portion that partially engages with the internal thread portion 76bs of the threaded hole 76b of the stopper cover portion 76 on the outer peripheral surface thereof. 79s. The protruding portion 79 is provided eccentrically with respect to the axis of the disc portion 78. Specifically, the protruding portion 79 is provided at a position near the thin portion 78 t with respect to the axial center of the disc portion 78. The male screw portion 79s is formed with a cross-shaped slit 79sl along the axial direction of the male screw portion 79s.

  When the contact member 77 is integrally attached to the stopper cover 76, the first surface 78a of the disc 78 is disposed opposite to the stopper cover 76 in parallel. The plate-shaped portion 37 is opposed to the plate-shaped portion 37 in an inclined state. That is, the abutting member 77 comes into contact with the adjustment plate 36 first with the thick portion 78d of the disc portion 78 (see, for example, FIG. 6).

<Mounting of cover plate and position adjustment of contact member>
Next, installation of the cover plate 7 and adjustment of the contact position of the contact member 77 with respect to the adjustment plate 36 will be described with reference to FIGS. FIG. 6 is a view for explaining the adjustment of the contact member in a state where the distance between the adjustment plate and the stopper cover portion is wide. FIG. 7 is a diagram for explaining the adjustment of the contact member in a state where the distance between the adjustment plate and the stopper cover portion is narrower in the left-right direction than in FIG. FIG. 8 is a diagram for explaining the adjustment of the contact member in a state where the distance between the adjustment plate and the stopper cover portion is narrower than that in FIG. 7.

  First, the cover portion 71 of the cover plate 7 is disposed on the fixing portion 36a of the hinge constituting member 3 fixed to the concave portion K of the frame Df, and the through holes 32b of the fixing flange portions 32 and 33 and the cover portion 71 are fixed. The cover plate 7 is fixed to the fixing flanges 32, 33 by fixing screws in correspondence with the holes 71a. Then, a screw is inserted into the fixing hole 76 a of the stopper cover 76, and the cover plate 7 is directly fixed to the frame Df via the stopper cover 76.

  When the cover plate 7 is fixed to the hinge component 3 and the frame Df, as shown in FIG. 6, for example, a cross section is formed between the stopper cover portion 76 of the cover plate 7 and the middle portion 36b of the adjustment plate 36. A rectangular space S is secured. The disc portion 78 is formed to have a thickness enough to be accommodated in the space S.

  When the cover plate 7 is attached to the hinge component 3 and the frame Df and the abutment member 77 does not abut on the adjustment plate 36, a predetermined tool (for example, a plus driver etc.) is used in the slit 79sl of the projection 79 The contact member 77 is rotated by engaging the contact member 77, and the contact member 77 is brought closer to the adjustment plate 36 until the thick portion 78 d of the disk portion 78 contacts the adjustment plate 36. For example, in FIG. 6, the thick portion 78 d comes into contact with the plate-like portion 37 of the adjustment plate 36 at the position Po1 closest to the cylindrical portion 38. Specifically, the thick portion 78d abuts on the middle portion 36b of the adjusting plate 36 in the edge region (see FIG. 6A) on the side of the cylindrical portion 38. Thus, the adjusting plate 36 is supported at two points of the fixing bolt B3 and the thick portion 78d of the contact member 77 in the left-right direction LR.

  Next, when it is desired to adjust the position of the door Dp relative to the frame Df in the left-right direction LR from the state shown in FIG. 6, the adjusting bolt B1 is rotated in a predetermined direction to make the plate portion 37 of the adjusting plate 36 It is necessary to adjust the position so as to approach the cover plate 7 on the cylindrical portion 38 side. However, at the position Po1 of the thick portion 78d of the adjusting plate 36 shown in FIG. 6, the thick portion 78d interferes with the floating movement of the plate-like portion 37 of the adjusting plate 36 on the cylindrical portion 38 side. The position of the adjustment plate 36 cannot be appropriately adjusted in the left-right direction LR.

  Accordingly, as shown in FIG. 7, the contact member 77 is appropriately rotated away from the adjustment plate 36, and the thick portion 78d is moved from the position Po1 shown in FIG. 6 to the position Po2 on the adjustment bolt B1 side. . Thereby, the position of the adjustment plate 36 can be appropriately adjusted in the left-right direction LR. In this state, the thick portion 78 d of the contact member 77 is rotated away from the cylindrical portion 38 of the adjustment plate 36 and partially in surface contact with the adjustment plate 36 in the edge region. (Refer to FIG. 7 (a).).

  Furthermore, when it is desired to further adjust the position of the door Dp relative to the frame Df in the left-right direction LR from the state shown in FIG. 7, the plate bolt 37 of the adjusting plate 36 is rotated by rotating the adjusting bolt B1 in a predetermined direction. It is necessary to adjust the position so as to be closer to the cover plate 7 on the cylindrical portion 38 side. However, at the position Po2 of the thick portion 78d of the adjusting plate 36 shown in FIG. 7, the thick portion 78d interferes with the floating movement of the plate-like portion 37 of the adjusting plate 36 on the cylindrical portion 38 side. The position of the adjustment plate 36 cannot be appropriately adjusted in the left-right direction LR.

  Therefore, as shown in FIG. 8, the contact member 77 is appropriately rotated away from the adjusting plate 36 to move the thick portion 78d from the position Po2 shown in FIG. 7 to the position Po3 on the side of the adjusting bolt B1. . Thereby, the position of the adjustment plate 36 can be appropriately adjusted in the left-right direction LR. In this state, thick portion 78d of contact member 77 is at a position farthest from cylindrical portion 38 of adjustment plate 36, and adjustment plate 36 extends from thick portion 78d to thin portion 78t on second surface 78b. It is in surface contact (see FIG. 8 (a)).

<Features of cover plate>
As shown in FIG. 12, in the frame body Df and the door body Dp to which the door closer Dc is attached, when a forced external force Of is applied to the door body Dp to forcibly close the door body Dp, As shown in FIG. 5, the adjustment plate 36 is separated from the frame body Df along the left-right direction LR in the cylindrical portion 38 of the adjustment plate 36 via the connecting pin of the hinge constituent member 5 attached to the door body Dp. Local load P is applied.

  When the cover plate 7 is not attached and a load P is applied to the adjustment plate 36, the adjustment plate 36 tends to move away from the frame body Df around the fixing bolt B3 (fulcrum). Moment works. When the adjustment plate 36 receives a turn due to the load P, the adjustment plate 36 comes into contact with the claw portion 35n of the case body 31 and is also supported at the contact position with the claw portion 35n. Therefore, when the load P is repeatedly applied to the adjustment plate 36, a local reaction force acts on the adjustment plate 36 via the claw portion 35n, and the adjustment plate 36 is bent and deformed in the claw portion 35n. The function as the door hinge 1 (opening / closing function of the door Dp) may be impaired.

  Further, due to the contact between the adjusting plate 36 and the claws 35n, a load P 'is locally applied to the claws 35n from the adjusting plate 36, so that the claws 35n are deformed or damaged. Again, the opening / closing function of the door hinge 1 may be impaired.

  On the other hand, as shown in FIG. 10, by attaching the cover plate 7, the thick portion 78d of the contact member 77 comes in contact with the middle portion 36b of the adjustment plate 36. That is, the adjustment plate 36 is supported at two points: the fixing bolt B3 and the thick portion 78d of the contact member 77. Then, in the adjusting plate 36, the position at which the middle portion 36b of the adjusting plate 36 and the thick portion 78d abut on each other is the fulcrum of the load P.

  The fact that the thick part 78d of the contact member 77 serves as a fulcrum means that the distance from the cylindrical part 38 serving as the point of application of the load P to the thick part 78d is closer than when the claw 35n serves as a fulcrum. That is, the distance between the point of application of the load P and the fulcrum of the moment (arm of the moment) works with the thick portion 78d of the contact member 77 as the fulcrum compared to the case where the claw 35n is the fulcrum It becomes close to a point and the moment acting on the adjustment plate 36 can be reduced. Thus, the bending deformation of the adjustment plate 36 can be suppressed.

  In the state shown in FIG. 6, the contact position between the thick portion 78 d of the contact member 77 and the plate-like portion 37 of the adjustment plate 36 is closest to the cylindrical portion 38, and the moment acting on the adjustment plate 36. Is preferred because it is the smallest. That is, in this state, when the load P is applied, the distance from the contact position between the thick portion 78 d and the plate-like portion 37 to the application point of the load P is short, and the moment acting on the adjustment plate 36 is the smallest. ing.

  Further, the two contact members 77 contact the central portion along the short side direction (vertical direction UD) of the intermediate portion 36b of the adjustment plate 36 (see FIG. 1A). It is possible to effectively suppress the plate-like portion 37 from floating away from the frame body Df in the left-right direction LR.

  Further, the adjusting plate 36 may come in contact with the claws 35 n and a plurality of locations of the contact members 77 of the cover plate 7, so that the load P on the adjustment plate 36 corresponds to the load P ′ at the claws 35 n and the contact members 77. It can be dispersedly supported by the load P ′ ′.

  Here, in the door attached with the door closer Dc, the endurance test of the door hinge by the forced opening and closing of the door Dp performed on the door hinge 1 having the cover plate 7 and the door hinge not having the cover plate 7 The results will be described.

(Test method)
As shown in FIG. 11 (a), a door having a door closer (not shown) was installed, and as shown in FIG. 11 (b), the door body Dp was forcibly opened and closed using an air cylinder Ac. In both tests, the same door closer was used for the manufacturer and model number. In Tables 1 and 2 below, the force to open the door body Dp is “F1”, the closing force is “F2”, the distance between the door body Dp and the door installation surface (the amount of sag) is “S”, and the lateral direction is extended. The hinges for doors attached to the lower side of the door body Dp are “S1 to S4” for the respective chili dimensions of the door body Dp and the frame body Df extending in the vertical direction at a position of 50 mm from the existing frame body Df. The gap between the cylindrical portions 38 and 52 of the above is referred to as "S5".

First, Table 1 shows the test results of the door hinge without the cover plate 7.
(Test conditions)
Door weight: 40kg
Door opening / closing angle: 0 to 90 °
Door size: Height 1990 x width 790 x thickness 33 [mm]
Opening and closing cycle: 5 seconds (closing speed 2 seconds) / 1 time (test result)

Note 1: Noise is generated from the lower door hinge Note 2: Change in closing speed (2 seconds → 1.78 seconds)
Note 3: Closing speed change from 100,000 open / close times (1.78 seconds to 1.50 seconds)
Fixing bolt loosened and door and frame contacted again. Test restarted by retightening fixing bolt. Note 4: The test was completed because the upper door hinge adjustment plate was deformed and the door contacted the frame.

注１：ドアクローザからの油漏れ確認
閉じ込み時のドアクローザによる抵抗なし Next, Table 2 shows the test results of the door hinge provided with the cover plate 7.
(Test conditions)
Door weight: 40kg
Door opening / closing angle: 0 to 90 °
Door size: Height 1990 x width 790 x thickness 33 [mm]
Opening and closing cycle: 5 seconds (closing speed 1.79 seconds) / 1 time (test result)

Note 1: Oil leak check from door closer
There is no resistance by door closer at closing

  As can be seen from the above test results, in the door hinge without the cover plate 7, the door Dp and the frame Df were in contact when the number of times of opening and closing exceeded 100,000. This is attributed to bending and deformation of the adjusting plate 36, and it was confirmed that the upper adjusting plate 36 was deformed after the number of times of opening and closing 113, 726 times. On the other hand, in the door hinge 1 provided with the cover plate 7, there was no problem even if the opening / closing frequency exceeded at least 410,000 times, and there was a problem in the door closer Dc first.

  Thus, the cover plate 7 including the stopper cover portion 76 that presses the adjustment plate 36 toward the frame body Df at the intermediate portion 36b of the hinge component 3 can avoid deformation of the adjustment plate 36 in the turning direction. . Even when the external force Of which closes the door Dp forcibly with respect to the closing movement of the door closer Dc which closes the door Dp is repeatedly applied by the cover plate 7, the deformation of the adjusting plate 36 is surely prevented. The function as the hinge 1 can be maintained for a long time.

  Further, the contact member 77 attached to the stopper cover 76 is formed to have a tapered cross section so that the thickness thereof changes continuously. Thus, for example, as shown in FIGS. 6-8, the position of the adjustment plate 36 is adjusted in the left-right direction LR, and the space S between the adjustment plate 36 and the stopper cover 76 is a cylindrical portion from the fixing bolt B3 side. Even if it narrows toward the side of 38, the stopper 77 is adjusted to the shape of the space S only by rotating the contact member 77 and adjusting the positions Po1 to Po3 where the thick portion 78d contacts the adjustment plate 36. The contact member 77 of the cover part 76 can be easily brought into contact with the adjustment plate 36.

  Further, a female screw 76bs is formed on the inner peripheral surface of the screw hole 76b of the stopper cover 76, and the disc 78 of the contact member 77 has a male screw 79s screwed with the female screw 76bs. It has a projecting portion 79 formed on the outer peripheral surface. Thus, the position of the thick portion 78d of the contact member 77 between the stopper cover portion 76 and the adjustment plate 36 can be freely adjusted on the locus (circumference) formed by the rotation of the contact member 77. Can do.

  Further, since the projecting portion 79 of the disc portion 78 is provided eccentrically with respect to the axis of the disc portion 78, the disc portion 78 is rotated in a range of 0 to 180 °, for example. In this case, the position of the thick portion 78d of the disc portion 78 can be adjusted (moved) over a wider range than when the protruding portion 79 is not eccentric with respect to the disc portion 78.

  The axial centers of the pair of fixing holes 76a for fixing the stopper cover 76 to the frame Df and the axes of the pair of screw holes 76b for attaching the contact member 77 are along the longitudinal direction of the stopper cover 76. Are disposed on the same virtual line L2. Thereby, even if the thick portion 78d of the disc portion 78 is at the rotational position deviated from the same imaginary line L2, the screw hole 76b for supporting the projecting portion 79 and the stopper cover portion 76 to the frame Df Since the fixing hole 76a through which the fixing screw to be fixed is inserted is on the same imaginary line L2, the stopper cover portion 76 stably receives the load transmitted from the adjustment plate 36 via the contact member 77. Can do.

  In addition, since the cover plate 7 can also be easily attached to the existing door hinge, the versatility with respect to the existing door hinge is high, and the maintenance cost of the door hinge can be suppressed.

<Others>
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, in the above embodiment, the contact member 77 is formed in a circular shape in a plan view, but is not limited to a circular shape, and may be formed in a triangular shape, a tetragon, a pentagon or more. Good.

  Further, in the above embodiment, by providing the contact member 77 on the stopper cover 76, the floating of the adjustment plate 36 in the left-right direction LR is suppressed, but the stopper cover 76 directly contacts the adjustment plate 36. The uplift may be suppressed.

  In the above embodiment, the hinge component 3 is attached to the frame Df, and the hinge component 5 is attached to the door Dp. However, the hinge component 3 is attached to the door Dp, and the hinge component 5 is attached. You may attach to the frame Df.

  In the above embodiment, the cover plate 7 includes the cover portion 71 that covers the fixed portion 36a of the adjustment plate 36 and the stopper cover portion 76 that covers the intermediate portion 36b. However, only the stopper cover portion 76 is provided. It may be formed by Thereby, the versatility of application of the cover plate 7 to the existing door hinge is enhanced.

  Moreover, in said embodiment, although the case main body 31 which has the nail | claw part 35n was demonstrated, the nail | claw part 35n is not an essential structure. In this case, the recess 37d may not be formed in the plate-like portion 37, and the fixing portion 36a will be based on the position where the fixing bolt B3 fixes the adjusting plate 36 in the oval hole 37c.

  Further, in the above embodiment, in order to adjust the adjustment plate 36 in a desired state, which tool should be inserted through the oval hole 71b, the notch 71c and the round hole 71d of the cover plate 7? There is no inscription on the mark indicating. However, in consideration of user's ease of use, for example, "right and left adjustment" in the vicinity of the oval hole 71b, "front and rear adjustment" in the vicinity of the notch 71c, and "fixed in the vicinity of the circular hole 71d Characters such as "" may be engraved.

DESCRIPTION OF SYMBOLS 1 Hinge for doors 3, 5 Hinge component 36 Adjustment plate 36a Fixed part 36b Middle part 37 Plate part 38 Cylindrical part 7 Cover plate (cover member)
71 Cover (first cover)
76 Stopper cover (second cover)
76b Screwing hole 76bs Female thread part 77 Contact member 79 Projecting part 79s Male thread part Dc Door closer (door body closing device)
Dp door body Df frame body

Claims (8)

Of the two hinge components that are attached to each of the frame body to which the door body closing device for closing the door body while reducing the closing speed and the door body are attached and connected to each other to form the door hinge, the frame A cover member covering one hinge component for adjusting the position of the door in a predetermined direction with respect to the body,
A first cover portion covering a fixed portion of the hinge component member relative to the door or the frame;
A second cover that is at least partially connected to the first cover portion and at least partially covers an intermediate portion of the one hinge component between the fixed portion and the connecting portion of the two hinge components; Department,
With
The second cover portion is fixed to the door body or the frame body, and abuts against the one hinge constituent member at the intermediate portion, and a force for accelerating the closing speed of the door body closes the door body. A cover member characterized by being added to a device to suppress movement of the one hinge component away from the frame or the door.   The cover member according to claim 1, wherein the second cover portion includes at least one contact member that contacts the intermediate portion.   The cover member according to claim 2, wherein the abutting member is a tapered member having a cross-sectional shape formed so that a thickness in a direction in which the abutting member abuts on the intermediate portion continuously changes. In the second cover portion, at least one screwing hole in which a female screw portion is formed on an inner peripheral surface is formed,
The said abutting member has a male screw part screwed together with the said female screw part of the said screwing hole on the opposite side to the side which faces one said hinge structural member, The Claim 2 or 3 characterized by the above-mentioned. The cover member as described.   The cover member according to claim 4, wherein the male screw portion of the contact member is provided eccentrically with respect to an axial center of the contact member. Fixing holes through which fixing members for fixing the second cover part to the frame body or the door body are inserted are formed at both ends in the longitudinal direction of the second cover part,
6. The cover member according to claim 4, wherein the axial centers of the screw hole and the fixing hole are positioned on the same imaginary line in the longitudinal direction of the second cover portion. Of the two hinge components that are attached to each of the frame body to which the door body closing device for closing the door body while reducing the closing speed and the door body are attached and connected to each other to form the door hinge, the frame A cover member covering one hinge component for adjusting the position of the door in a predetermined direction with respect to the body,
The one hinge constituent member fixed to the door body or the frame body and between the fixed portion of the one hinge constituent member with respect to the door body or the frame body and the connecting portion of the two hinge constituent members Abut,
A cover member, wherein a force that accelerates the closing speed of the door body is applied to the door body closing device to suppress movement of the one hinge constituent member away from the frame body or the door body. A frame body to which a door body closing device for closing a door body while reducing a closing speed is attached, and two hinge components attached to each of the door bodies and connected to each other;
A cover member that covers one of the two hinge constituent members that adjusts the position of the door body in a predetermined direction relative to the frame body;
With
The cover member is
A first cover portion covering a fixing portion of the hinge component fixed to the door or the frame;
At least partially connected to the first cover portion, abutting against an intermediate portion of the one hinge constituent member between the fixed portion and the connecting portion of the other hinge constituent member, and the intermediate portion A second cover portion that at least partially covers;
Have
The second cover portion is fixed to the door body or the frame body, and abuts against the one hinge constituent member at the intermediate portion, and a force for accelerating the closing speed of the door body closes the door body. A hinge for a door, wherein the hinge member is added to the apparatus to suppress movement of the one hinge constituent member away from the frame body or the door body.

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