JP2010255239A - Door connecting member and door connecting structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door connecting member capable of enhancing workability in the adjustment of upper and lower positions of a door and a mounting object and capable of preventing the displacement of the upper and lower positions after the adjustment, and a door connecting structure using the door connecting member. <P>SOLUTION: The door connecting member 1 includes: a first connecting body 10 which has a first casing 11 fixed to either of mounting surfaces 3 and 7, and a first adjusting block 20; a second connecting body 30 which is mounted to the other one; and connecting arms 50 and 60. The first adjusting block comprises a vertical adjusting screw 26 which can advance and recede in a vertical direction and which has an adjusting operation portion and an adjusting abutment portion 26a, a block-side screw 25, and a connecting protrusion 28. The first casing has a slot 13 through which a connecting protrusion is inserted and which allows its vertical motion, and an adjusting retainer 14. The first casing and the first adjusting block are relatively moved upward and downward by operating the vertical adjusting screw. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a door connecting member for connecting a door to an attachment target so as to be opened and closed, and a door connecting structure using the door connecting member.

As a door connecting member for opening and closing the door to an attachment object such as a door frame (door frame, opening frame), other doors, a side plate of a storage such as a cabinet, etc., various types of door connecting members have been conventionally used. Things have been proposed.
For example, as a general door connecting member, a flat hinge type member including a hinge pin and two wing members rotatably connected to the hinge pin is known.
In such a flat hinge type, there is a problem that the hinge pin portion is exposed between the door and the mounting target when the door is closed, and the appearance is not good.

As another door connecting member, for example, in Patent Document 1 below, a hidden hinge including a pair of casings embedded in end surfaces of door doors and the like and a link mechanism for connecting these casings in a relatively rotatable manner is proposed. ing.
The casing of the hidden hinge includes a casing main body, and a vertical position adjusting member that is assembled to the casing main body and to which the link mechanism is coupled.
The vertical position adjusting member has a long hole at the top and bottom, and is screwed into the female screw portion provided in the casing body through the long hole to tighten the vertical position adjusting member. The adjustment member is structured to be assembled to the casing body.
According to this, the vertical position of the door can be adjusted by moving the casing body embedded and fixed in the door up and down within the range of the vertical length of the elongated hole of the vertical position adjusting member. .

Further, in Patent Document 2 below, a first hinge casing fixed to the door frame, a first adjustment block attached to the first hinge casing, a second hinge casing fixed to the door, and the second hinge casing. A concealed hinge structure has been proposed that includes a second adjustment block that is attached to each other and two sets of connecting arms that connect the first adjustment block and the second adjustment block so as to be relatively movable.
In this concealed hinge structure, the first adjustment block is provided with a long hole for attaching the first adjustment block to the first hinge casing so as to be adjustable left and right. Is provided with a screw hole for attaching the second adjustment block to the second hinge casing so as to be adjustable in the front direction.

JP-A-6-288139 (see FIG. 7) Japanese Patent Laying-Open No. 2008-25270 (see FIG. 6)

However, with the concealed hinge described in Patent Document 1, the vertical position of the door can be adjusted. However, an adjustment screw is screwed into the female screw portion of the casing body through a long hole that is vertically long. Since the vertical position adjusting member is fixed by tightening, there is a risk that the vertical position shift may occur due to the load of the door. Also, since it is necessary to adjust the vertical position along a long slot that is long in the vertical direction, it is difficult for one person to tighten the adjustment screw while moving the door up and down to adjust the vertical position. Improvement of workability was desired.
Moreover, in the structure of the hidden hinge described in the above-mentioned Patent Document 2, position adjustment in the left-right direction and the front direction is possible. However, particularly in the position adjustment of doors and doors, as described above, it is a difficult task. It was not possible to adjust the position in the vertical direction.

  The present invention has been made in view of the above circumstances, and can improve workability at the time of adjusting the vertical position of the door and the object to be attached while preventing the displacement of the vertical position after the adjustment while having a simple structure. An object of the present invention is to provide a door connecting member that can be used, and a door connecting structure using the same.

  In order to achieve the above object, a door connecting member according to the present invention is a door connecting member for connecting a door to an attachment target so as to be openable and closable, and includes an attachment surface portion of the door and an attachment surface portion of the attachment object. A first connection body having a first casing fixed to one of the first connection body, a first adjustment body attached to the first casing, a second connection body attached to the other, and an opening / closing operation of the door A connecting arm for connecting the second connecting body and the first adjustment block so that they can move relative to each other; and the first adjustment block is moved up and down with respect to the first adjustment block. And a vertical adjustment screw portion having an adjustment operation portion for adjusting the advance / retreat amount and an adjustment contact portion that contacts the first casing, and a block side screw screwed into the vertical adjustment screw portion. And a connecting projection connected to the first casing, while the connecting projection is inserted into the first casing and allows the vertical movement thereof, and the adjustment contact portion. And an adjustment receiving portion on which the first casing and the first adjustment block are relatively moved up and down by operating the up and down adjustment screw portion in the screw acting direction. It is characterized by.

  In the door connecting member according to the present invention, a long hole of the first casing is provided in a casing back portion arranged substantially parallel to the mounting surface portion, and penetrates the first adjustment block in the horizontal direction. However, it is good also as a structure which provided the internal thread part opened toward the said casing back part. In this case, the connecting projection has a male threaded portion that is screwed into the female threaded portion, protrudes from the one opening toward the casing back, one end is inserted into the elongated hole, and the one end is By using a connection support pin rotatably connected to the first casing, and operating the operating portion of the male screw portion provided at the other end of the connection support pin in the screw acting direction, the first casing The first adjustment block may be relatively moved along the male screw portion.

  In any one of the door connecting members according to the present invention, the second connecting body is fixed to the other of the mounting surface portions, and the second casing is attached to the second casing and connected to the connecting arm. The second adjustment block is provided with an adjustment long hole having a major axis in a direction substantially parallel to the mounting surface portion and in the horizontal direction, and the second adjustment block includes: You may make it fix with respect to a said 2nd casing with the fixing stopper penetrated by this adjustment long hole.

  In any one of the door connecting members according to the present invention, the block-side screw portion is a female screw hole provided in the first adjustment block along the vertical direction, the vertical adjustment screw portion is a bolt member, The bolt head of the bolt member may constitute the adjustment operation part and the adjustment contact part.

  In any one of the door connecting members according to the present invention, each of the first connecting body and the second connecting body is provided with an arm receiving recess that opens in a direction facing each other in the closed state, and the connecting arm is closed. It is good also as a structure generally accommodated in the said arm accommodation recessed part in a state.

  In any one of the door connecting members according to the present invention, the connecting arms are attached to the first connecting body so that one end portions of the connecting arms are rotatable, and the other end portions are attached to the second connecting body. When the first connection arm and the second connection arm are moved from the closed state to the open state, the first connection arm and the second connection arm are rotatably attached. The straight line connecting the rotation fulcrum of each end of the one connection arm and the straight line connecting the rotation fulcrum of each end of the second connection arm may move independently from each other. .

  In order to achieve the above object, the door connection structure according to the present invention is a door connection structure that uses any one of the door connection members to connect the door to an attachment target so as to be freely opened and closed. The first connecting body is mounted in a recess provided in the mounting surface portion of the door, while the second connecting body is mounted in a recess provided in the mounting surface portion to be mounted. It is characterized by that.

The door connecting member according to the present invention operates the vertical adjustment screw portion provided in the first adjustment block in a screw acting direction so that the vertical adjustment screw portion is in the vertical direction with respect to the first adjustment block. Advancing and retreating along. As the vertical adjustment screw part advances and retreats in the vertical direction, the connection protrusion of the first adjustment block moves along the elongated hole of the first casing, and the adjustment contact part of the vertical adjustment screw part The first casing and the first adjustment block move up and down relatively in contact with the adjustment receiving portion of the first casing.
Accordingly, the first adjustment block connected to the second connection body via the connection arm and the first casing can be relatively moved up and down, so that any one of the first casing and the second connection body can be moved. The door and the object to be attached can be relatively moved up and down. That is, according to the present invention, the door and the mounting target can be relatively moved up and down by the operation of the up and down adjustment screw portion provided in the first adjustment block. The workability during the vertical position adjustment can be improved.
In addition, since the vertical adjustment screw portion is configured to be screwed into the block side screw portion of the first adjustment block and to advance and retreat up and down by a screw action, for example, as described in Patent Document 1 above In comparison, it is possible to reliably prevent the positional deviation of the adjusted vertical position, and to easily and reliably adjust the slight vertical position.

In the door connecting member according to the present invention, a long hole of the first casing is provided in a casing back portion disposed substantially parallel to the mounting surface portion, and penetrates the first adjustment block in a horizontal direction, one of which is The internal thread part opened toward the casing back part is provided, and the connecting projection part has a male thread part screwed into the female thread part, and projects toward the casing back part from the one opening, and the long One end portion is inserted into the hole, and the one end portion is connected to the first casing so as to be rotatable. The operation portion of the male screw portion provided at the other end portion of the connection support pin is a screw. If the first casing and the first adjustment block are relatively moved along the male screw portion by operating in the action direction, the following effects can be obtained.
In other words, a connection support pin having a male threaded portion for screwing a coupling projection for coupling the first adjustment block to the first casing into a female threaded portion that penetrates the first adjustment block in the horizontal direction. Therefore, by operating the connection support pin, the position in the direction along the normal to the mounting surface portion (the door width direction when the first connection body is attached to the end surface of the door) Adjustments can be made. That is, the connection protrusion for connecting the first adjustment block to the first casing can also be used for position adjustment in the direction along the normal to the mounting surface. Therefore, without increasing the number of parts, the position of the door and the mounting target can be relatively adjusted in the vertical direction and the direction along the normal direction to the mounting surface portion.

In any one of the door connecting members according to the present invention, the second connecting body is fixed to the other of the mounting surface portions, the second casing is attached to the second casing, and is connected to the connecting arm. The second adjustment block is provided with an adjustment long hole having a major axis in a direction substantially parallel to the mounting surface portion and in the horizontal direction, and the second adjustment block includes the second adjustment block. If it is fixed to the second casing by a fixing stopper inserted through the adjustment long hole, the following effects can be obtained.
That is, the second casing and the second adjustment block are relatively parallel to the mounting surface portion and in the horizontal direction (when the second connecting body is attached to the opening side surface of the door frame, the door frame is expected). The position can be adjusted along. Therefore, in addition to the vertical position adjustment performed by the first connecting body, the door and the mounting target can be relatively positioned in a direction substantially parallel to the mounting surface portion and along the horizontal direction.
In particular, if a configuration in which position adjustment in the direction along the normal direction with respect to the mounting surface portion is employed, the door connecting member can be adjusted in three directions with a simple structure.

  In any one of the door connecting members according to the present invention, the block-side screw portion is a female screw hole provided in the first adjustment block along the vertical direction, the vertical adjustment screw portion is a bolt member, and the bolt If the bolt head of the member constitutes the adjustment operation part and the adjustment contact part, the vertical position adjustment means in the first connection body can be constituted with a simple structure.

  In any one of the door connecting members according to the present invention, each of the first connecting body and the second connecting body is provided with an arm receiving recess that opens in a direction facing each other in the closed state, and the connecting arm is in the closed state. If the structure is generally accommodated in the arm accommodating recess, in the closed state, the connecting arm is generally accommodated and is not exposed, and the aesthetics at the connecting portion of the door can be improved.

In any one of the door connecting members according to the present invention, the connecting arm is rotatably attached at one end to the first connecting body, and the other end is rotated around the second connecting body. When the first connection arm and the second connection arm are moved from the closed state to the open state, the first connection arm and the second connection arm are movably attached. If a structure that moves independently of each other so that a straight line connecting the rotation fulcrum of each end in the connecting arm and a straight line connecting the rotation fulcrum of each end in the second connection arm substantially intersects, The following effects are achieved.
That is, there is no need to provide a link mechanism such as the above-described conventional concealed hinge and a connecting arm, a vertical rotation shaft, a slide groove, and the like, and the structure of the door connecting member can be further simplified.
Further, each end of the first connecting arm and the second connecting arm is structured to be rotatably attached to the first connecting body and the second connecting body, respectively. There is no fear that a positional shift or the like caused by sliding of the respective fulcrum on the slide side of each hinge attached at different locations along the height direction, such as the hidden hinge of FIG. Therefore, when the door connecting member is attached to a plurality of locations along the height direction and the door and the mounting target are connected, the gap between the door and the mounting target is substantially uniform in the height direction. Can be held. Thereby, the aesthetics in the connection part of a door can be improved, for example, when the said door is connected with a door frame etc., it can also prevent that the door tip side of this door hangs down.
Further, when the first connecting arm and the second connecting arm are changed from the closed state to the open state, the straight line connecting the rotation fulcrum of each end portion of the first connecting arm and the second connecting arm. The arm is configured to move independently from each other so that a straight line connecting the pivots at the ends of the arms substantially intersects. Therefore, when the straight lines intersect, the arms regulate each other, so that when the door is opened and closed, the door can be moved along a fixed track. The operation is smooth.

  Moreover, the said door connection structure which concerns on this invention is a door connection structure which connects a door so that opening and closing is possible with respect to an attachment object using one of the said door connection members, Comprising: The said 1st connection main body is said door. Since the second connecting body is mounted in a recess provided in the mounting surface portion to be mounted while being mounted in a recess provided in the mounting surface portion, the same effect as described above is obtained. Play.

(A), (b) both show an example of the door connection structure using one Embodiment of the door connection member which concerns on this invention, (a) is made into the door open state in Fig.2 (a). The schematic front view which shows the state which looked at the connection part of the door which looked from the X1 direction, (b) is a schematic longitudinal cross-sectional view made to respond | correspond to the Y1-Y1 line arrow in (a). (A), (b) shows the connection state of the door and attachment object using the same door connection structure, (a) is a schematic front view, (b) is X2-X2 in (a). FIG. It is a partially exploded schematic perspective view which shows the door connection member. It is a partially exploded schematic perspective view which shows the door connection member. (A), (b) is a figure for demonstrating an example of the position adjustment using the door connection member, (a) is a figure corresponding to FIG. 1 (a), (b) It is a schematic longitudinal cross-sectional view corresponding to the Y2-Y2 line arrow in (a). (A), (b) shows the door open state of the door using the same door connection structure, and (a) corresponds to the X3-X3 line arrow in FIG. FIG. 2B is a schematic cross-sectional view schematically showing the Z portion in FIG. 2B in an enlarged manner, and FIG. 2B corresponds to the X4-X4 arrow view in FIG. It is a schematic cross-sectional view which expands and shows typically. (A), (b) both show the closed state of the door, (a) is a schematic cross-sectional view corresponding to FIG. 6 (a), (b) corresponds to FIG. 6 (b). FIG. It is explanatory drawing which shows notionally the door connection structure using the door connection member which concerns on this invention. (A), (b) is explanatory drawing which each shows an example of the door connection structure using the modification of the door connection member which concerns on this invention, respectively.

Embodiments of the present invention will be described below with reference to the drawings.
FIGS. 1-7 shows the door connection member which concerns on 1st Embodiment, and the door connection structure using this, It is explanatory drawing for demonstrating these.
In addition, in the following embodiment and each modification, facing the door in the closed state shown in FIG. 2 (b), the door is opened with the connecting portion as a fulcrum, and the space side where the door exists is located. The front side and the opposite side, that is, the back side of the opening (opening and closing space or storage space) side of the opening that is opened and closed by the door will be described as the back side.
Moreover, in FIG.1 (b), FIG.5 (b), FIG.6 and FIG.7, the door, the door frame, and the inner wall are shown with the dashed-two dotted line, and it mentions later in FIG.1 (b) and FIG.5 (b). It shows a state where each cover is removed.
Moreover, in FIG.6 and FIG.7, the 1st connection main body and the 2nd connection main body are shown typically.

As shown in FIG. 2, the door connecting member 1 according to the present embodiment includes a door 2 that closes or opens an opening op opened on an inner wall w of a residence, and a door frame 6 provided in the opening op. It is provided in the connection part.
In this embodiment, as shown to Fig.2 (a), the aspect which provided the door connection member 1 in two places along the height direction of the said connection part is illustrated. In addition, you may make it provide in three or more places, or it is good also as an aspect which makes the said door connection member 1 itself long long, and connects with the single door connection member 1. FIG.
The door frame 6 includes a hanging-side vertical frame 6a that constitutes an attachment target, a door-end-side vertical frame 6b that is provided to face the hanging-side vertical frame 6a across the opening op, and these vertical frames. And an upper frame 6c connected so as to connect the upper ends of 6a and 6b.

A mounting recess 9 is formed on the opening side surface 7 in the vicinity of the front side portion of the suspension side vertical frame 6a in accordance with the shape of the second connection main body 30 described later and opens toward the door-end side vertical frame 6b. (Refer FIG. 1 (a) and FIG. 6) is provided in two places corresponding to the attachment location of the door connection member 1. FIG.
The hanging side vertical frame 6a may have a finding (thickness) dimension such that the mounting recess 9 is provided. For example, the finding dimension may be about 20 mm to 30 mm. Further, the mounting recess 9 may be provided closer to the front side in order to reduce the gap with the door 2 when the door 2 described later is opened and closed. Further, from the viewpoint of strength, a processing remainder of about 5 mm may be provided on the front side. Such dimensions may be appropriately set according to the dimensions of the door connecting member 1 itself, which are appropriately set according to the weight of the door 2 to be connected.
In addition, when the door 2 is opened and closed, the front edge of the suspension side vertical frame 6a does not come into contact with the door 2 and the gap between the door 2 is made relatively small. Therefore, as shown in FIGS. 1A and 6, a chamfered portion 7 a is formed by C chamfering.
In FIGS. 1 to 3, reference numeral 6d denotes a door stop member provided in each of the vertical frames 6a and 6b.

As shown in FIG. 2 (b), the door 2 is connected to the suspension side vertical frame 6a in an openable / closable manner by a door connecting member 1 described later. The opening op is opened by rotating toward the near side with the end portion as a fulcrum.
A mounting recess 5 (see FIG. 1) is formed on the suspension side end surface 3 of the door 2 in accordance with the shape of the first connection main body 10 described later, and opens toward the suspension side vertical frame 6a in the closed state. And FIG. 7) are provided at two locations corresponding to the mounting location of the door connecting member 1. That is, the mounting recess 5 and the mounting recess 9 provided in the suspension side vertical frame 6a are substantially facing each other and opened in a direction facing each other in the closed state (FIG. 7). reference).
The thickness of this door 2 should just have the thickness which can provide the said mounting recess 5 similarly to the said suspension side vertical frame 6a, for example, thickness dimensions are 30 mm-about 40 mm. It may be a thing. In addition, when the door 2 is opened and closed, the mounting recess 5 is provided in order to reduce the gap with the suspension side vertical frame 6a, for example, when the door 2 is relatively thick. Then, you may make it provide near this side. As described above, the dimensions and the like of the door connecting member 1 itself are set as appropriate according to the weight and the like of the door 2 as described above, and may be set as appropriate accordingly.

Moreover, when the door 2 is opened and closed at the front side edge portion (both edge portions in the illustrated example) of the hanging side end portion of the door 2 when the door 2 is opened and closed, the hanging side vertical frame is used. In order to make the gap between the hanging base side vertical frame 6a relatively small without contacting with 6a, as shown in FIGS. 1A and 7, the chamfered portion 3a is formed by R chamfering. Is formed.
In FIGS. 2A and 2B, the door 2 in the closed state is indicated by a solid line, and the door 2 in the open state is indicated by a two-dot chain line.
Moreover, in FIG. 2, the code | symbol 2a is a handle (handle) as an operation tool.
In the illustrated example, a three-way door frame 6 including a pair of vertical frames 6a and 6b and an upper frame 6c is shown, but a four-sided frame having a lower frame may be used.

  As shown in FIG. 1A and FIG. 3, the door connecting member 1 is generally accommodated and attached to a mounting recess 5 provided on a suspension side end surface 3 of the door 2. The main body 10, the second connecting body 30 accommodated and attached in the mounting recess 9 provided in the opening side surface 7 in the vicinity of the front side portion of the suspension side vertical frame 6a, the first connecting body 10 and the second connecting body A pair of connecting arms 50 and 60 (the first connecting arm 50 and the second connecting arm 60) for connecting the connecting body 30 is provided.

The first connecting body 10 is accommodated and fixed in a mounting recess 5 provided in the door 2, and a first adjustment block 20 is accommodated and fixed in the first casing 11. And.
The first casing 11 is formed, for example, by bending a plate-like material made of a metal material or the like. As shown in FIGS. 1B and 4, the first casing 11 is substantially formed on the suspension-side end surface 3 of the door 2. A first casing back portion 12 that is arranged in parallel and accommodated along the back side surface of the mounting recess 5, and is bent toward the horizontal direction from the upper end portion and the lower end portion of the first casing back portion 12, respectively. The first casing top surface portion 14 and the first casing bottom surface portion 16 that are accommodated along the top surface and the bottom surface of the mounting recess 5, respectively, and the front end portions of the first casing top surface portion 14 and the first casing bottom surface portion 16. Are provided with an upper flange portion 15 and a lower flange portion 17 which are bent upward and downward, respectively, and are accommodated in recesses formed so as to be continuous with the upper and lower sides of the mounting recess 5.

In the upper end portion and the lower end portion of the first casing back portion 12, vertical adjustment long holes 13 and 13 having a long diameter along the vertical direction are formed. A connecting support pin 28 constituting a connecting projection for connecting a first adjusting block 20 to be described later to the first casing 11 at a portion of the first casing back portion 12 on the mounting recess 5 side. A step portion is formed so as to form a void so that one end portion 28 b of 28 does not interfere with the back side surface of the mounting recess 5.
The first casing 11 is accommodated in the mounting recess 5 and, as shown in FIG. 1 (a), fixing of wood screws or the like through insertion holes provided in the upper collar portion 15 and the lower collar portion 17 is performed. It is fixed to the suspension side end surface 3 of the door 2 by the tool.

The first adjustment block 20 is formed, for example, by appropriately processing (cutting, casting, etc.) a quadrangular prism-shaped material made of a metal material or the like. As shown in FIGS. 1B and 4, A second arm housing recess 22 and a first arm housing recess 21 that are cut out along a substantially horizontal direction are provided at a predetermined interval in the vertical direction.
Each of the arm receiving recesses 21 and 22 opens toward the second connection main body 30 (described later) disposed substantially facing the first connection main body 10 in the closed state. In the state of being accommodated in the recess 5, one side portion of the both side portions that is open is closed by one side wall portion of the attachment recess 5 of the door 2. In addition, without making such a shape, the first adjustment block 20 itself is punched out, and in the closed state, the first connection main body 10 is arranged so as to face the second connection main body 30 described later. It is good also as an arm accommodation recessed part opened only.

Further, as shown in FIG. 1A, the first adjustment block 20 includes a second arm support shaft 24 that serves as a pivot point of the second connection arm 60 described later, and a first connection arm 50 described later. The first arm support shaft 23 serving as a rotation fulcrum is provided at different locations in the upper and lower directions, and is provided such that its axis (rotation fulcrum) is at a different position in plan view.
The second arm support shaft 24 is provided so as to vertically penetrate the space of the second arm housing recess 22, while the first arm support shaft 23 is formed in the empty space of the first arm housing recess 21. It is provided so as to penetrate the place up and down.
As shown in FIG. 3, the support shafts 23 and 24 are inserted into the first adjustment block 20 from through holes or insertion holes provided in the vertical direction. 60 may be inserted into the shaft insertion holes 52 and 62 provided on the first adjustment block 20 and fixed to the first adjustment block 20 by a fixing support means such as a pin member.

As shown in FIGS. 7A and 7B, each of the support shafts 23 and 24 is along the width direction of the door 2 (the direction along the door end side from the hanging side) in the present embodiment. The first arm support shafts 23 are provided so as to be shifted from each other. The first arm support shaft 23 is provided closer to the door end side (center of gravity of the door 2) than the second arm support shaft 24. ing. Thereby, as will be described later, the load of the door 2 is mainly applied to the first connection arm 50 having relatively high mechanical strength and rigidity, and the door 2 can be efficiently supported by the first connection arm 50. it can. The other second connecting arm 60 can function as a guide (auxiliary) arm.
The support shafts 23 and 24 are provided so as to be shifted from each other along the thickness direction of the door 2, and the first arm support shaft 23 is more than the second arm support shaft 24. It is provided so as to be at a position close to the front face 4 side.
Further, each of the support shafts 23 and 24 is provided at a relatively close position on the front side 4 side of the door 2 in a plan view. That is, when the door 2 is opened from the closed state, as described later, of the surfaces adjacent to the suspension side end surface 3 constituting the attachment surface portion of the door 2 (the front and back surfaces), the suspension The support shafts 23 and 24 are provided so as to be positioned close to the front surface 4 which is an adjacent surface on the side close to the original side vertical frame 6a.

As shown in FIGS. 1A and 4, a female screw hole 25 constituting a block-side screw portion is formed in the upper end portion of the first adjustment block 20 downward from the upper surface thereof.
The female screw hole 25 is screwed with a vertical adjustment bolt 26 constituting an vertical adjustment screw portion, and the female screw hole 25 and the vertical adjustment bolt 26 constitute block side vertical adjustment means. A bolt head portion 26a of the vertical adjustment bolt 26 constitutes an adjustment operation portion and an adjustment contact portion, and a first casing constituting an adjustment receiving portion of the first casing 11 on the upper surface of the bolt head portion 26a. The top surface portion 14 abuts, and the vertical position can be adjusted as will be described later.
In the state where the door connecting member 1 is assembled and attached to the door 2 and the door frame 6, the first casing top surface portion 14 is formed on the upper surface of the bolt head 26 a of the vertical adjustment bolt 26 as shown in FIG. 1. Abuts, and the load of the door 2 acts on the first adjustment block 20 via the first casing 11.

Further, the upper and lower end portions of the first adjustment block 20 respectively penetrate in the horizontal direction, and one of the first adjustment blocks 20 is open toward the first casing back portion 12 and the other is in the closed state. 10 is formed with female screw portions 27, 27 that are arranged substantially facing each other and open toward the second connecting main body 30 described later. The female screw portions 27, 27 have male screws of the connecting support pins 28, 28. The portions 28a and 28a are respectively screwed.
Each of the connection support pins 28 has one end portion 28 b protruding from the one opening toward the first casing back portion 12, and the one end portion 28 b serves as a connection portion with the first casing 11. The adjustment long holes 13 are inserted into the first casing back portion 12 so as to be rotatable. For example, as shown in FIG. 4, the one end portion 28b of the connection support pin 28 is connected to the first casing back portion 12 up to a flange portion provided on the one end portion 28b. As shown in FIG. 1B, the portion inserted into the hole 13 and projecting from the back surface (recess side surface) of the first casing back portion 12 is inserted into a washer 18 for caulking and is caulked (riveted). The first casing back 12 may be pivotally connected.

The first adjustment block 20 connected to the first casing 11 as described above has a vertical adjustment elongated hole provided in the first casing back portion 12 when the vertical position is adjusted as will be described later. 13, the one end portion 28 b of the connection support pin 28 moves to allow the first casing 11 and the first adjustment block 20 to move relative to each other. Is made by.
Further, the operation portion of the male screw portion 28a provided at the other end portion of the connection support pin 28 is screwed into the female screw portion 27, as shown in FIG. It is possible to operate. By operating the operating portion in the screw acting direction of the male screw portion 28a, the first adjustment block 20 and the first casing 11 are relatively moved along the male screw portion 28a. That is, as will be described later, it is possible to adjust the position of the door 2 to which the first connection main body 10 is attached in the width direction (left and right direction, the direction along the normal direction with respect to the suspension side end surface 3).

  As shown in FIG. 3, the first connection main body 10 configured as described above is covered with a first cover 19 made of, for example, a synthetic resin. The first cover 19 is attached to the first connection body 10 in a detachable manner with respect to the first connection body 10 by a locking claw or the like provided on the back surface thereof. In FIG. 3, reference numeral 19a denotes an arm opening for exposing each of the connecting arms 50 and 60 described later. In a state in which the first cover 19 is attached to the first connecting body 10, the fixing fasteners and the like of the first connecting body 10 described above are covered and excellent in aesthetics.

As shown in FIGS. 7A and 7B, the second connection main body 30 is disposed substantially facing the first connection main body 10 in the closed state, as shown in FIGS. 1A and 3. As described above, the second casing 31 accommodated and fixed in the mounting recess 9 provided in the suspension side vertical frame 6a, and the second adjustment block 40 accommodated and fixed in the second casing 31 are provided. I have.
As shown in FIG. 3, the second casing 31 has substantially the same configuration as the first casing 11 provided in the first connection main body 10, and the opening side surface 7 in the vicinity of the front side portion of the suspension side vertical frame 6 a. The second casing back portion 32 is disposed substantially parallel to the housing and is accommodated along the inner side surface of the mounting recess 9, and is bent in the horizontal direction from the upper end portion and the lower end portion of the second casing back portion 32, respectively. The second casing top surface portion 34 and the second casing bottom surface portion 36 accommodated along the top surface and the bottom surface of the mounting recess 9, respectively, and the second casing top surface portion 34 and the second casing bottom surface portion 36. There are provided an upper collar part 35 and a lower collar part 37 that are bent upward and downward from the tip part, respectively, and are accommodated in recesses formed so as to be continuous with the upper and lower sides of the mounting recess 9.

Female screw holes 33 and 33 into which front and rear adjustment screws 38 and 38 for fixing a second adjustment block 40 to be described later to the second casing 31 are respectively screwed in the upper end portion and the lower end portion of the second casing back portion 32. Are formed respectively. A space is formed in a portion of the second casing back portion 32 on the side of the mounting recess 9 so that the front end portions of the front and rear adjustment screws 38, 38 to be described later do not interfere with the back side surface of the mounting recess 9. A step portion is formed on the surface.
The second casing 31 is accommodated in the mounting recess 9 and, like the first casing 11, as shown in FIG. 1A, insertion holes provided in the upper collar portion 35 and the lower collar portion 37. And is fixed to the opening side surface 7 in the vicinity of the front side portion of the suspension side vertical frame 6a by a fixing tool such as a wood screw.

Similar to the first adjustment block 20, the second adjustment block 40 is formed by appropriately processing (cutting, casting, etc.) a rectangular column-shaped material made of a metal material, for example, as shown in FIG. As shown in FIG. 3 and FIG. 3, a second arm housing recess 42 and a first arm housing recess 41, which are notched along a substantially horizontal direction, are provided at predetermined intervals in the vertical direction.
As shown in FIG. 7A, the second arm accommodating recess 42 and the second arm accommodating recess 22 provided in the first connecting body 10 open in a direction facing each other in the closed state. ing. Further, the first arm receiving recess 41 and the first arm receiving recess 21 provided in the first connecting body 10 are directed toward each other in the closed state as shown in FIG. 7B. It is open.
In the state where the second connection main body 20 is stored in the mounting recess 9, the arm receiving recesses 41, 42 are hung on one side of the both side portions that are open, like the first connection main body 10. It will be in the state obstruct | occluded by the one side wall part of the attachment recess 9 of the former side vertical frame 6a. It should be noted that, in the same manner as the first adjustment block 20, the second adjustment block 40 itself is pulled out and the second connection main body 30 is substantially faced in the closed state without forming such a shape. It is good also as an arm accommodation recessed part opened only to the said 1st connection main body 10 side.

Further, as shown in FIG. 1A, the second adjustment block 40 includes a second arm support shaft 44 that serves as a pivot point of the second connection arm 60 described later, and a first connection arm 50 described later. The first arm support shaft 43 serving as a rotation fulcrum is provided at different locations in the upper and lower directions, and is provided such that its axis (rotation fulcrum) is at a different position in plan view.
The second arm support shaft 44 is provided so as to vertically penetrate the space of the second arm accommodating recess 42, while the first arm support shaft 43 is empty in the first arm accommodating recess 41. It is provided so as to penetrate the place up and down.
As shown in FIG. 3, each of the support shafts 43 and 44 is inserted from, for example, a through-hole or an insertion hole provided in the second adjustment block 40 along the vertical direction, as shown in FIG. Then, it may be inserted into shaft insertion holes 54 and 64 provided in the connecting arms 50 and 60, which will be described later, and attached and fixed to the second adjustment block 40 by a fixing support means such as a pin member.

As shown in FIGS. 7A and 7B, the support shafts 43 and 44 are located in the direction in which the suspension-side vertical frame 6a is found (the same direction as the width direction of the door 2 in the closed state) in this embodiment. The first arm support shaft 43 is provided at a position closer to the opening op than the second arm support shaft 44. .
The support shafts 43 and 44 are provided so as to be displaced from each other along the prospective direction (the thickness direction of the inner wall w) of the suspension base vertical frame 6a. 44 is provided at a position closer to the front side surface 8 than the first arm support shaft 43.

Further, each of the support shafts 43 and 44 is provided so as to be relatively close to the front side surface (finding surface) 8 of the suspension side vertical frame 6a in plan view. That is, when the door 2 is opened from the closed state, as described later, of the surfaces adjacent to the opening side surface 7 (the front side surface and the back surface) constituting the mounting surface portion of the hanging side vertical frame 6a, The support shafts 43 and 44 are provided so as to be located at the front side surface 8 which is an adjacent surface on the side close to the door 2.
In other words, in the present embodiment, the support shafts 23 and 24 provided on the first connection body 10 and the support shafts 43 and 44 provided on the second connection body 30 are relatively close to each other. It is provided at a position close to. Thereby, the relative moving radius of each connection main body 10 and 30 made by opening and closing of the door 2 can be made small compared with what is provided in the reverse side, for example. In other words, when the door 2 is connected so as to be freely opened and closed so that the door 2 and the suspension side vertical frame 6a do not interfere with each other, when each support shaft serving as each rotation fulcrum is provided closer to the opposite side, it will be described later. Each of the connecting arms 50 and 60 needs to be relatively long, and the moving radius of each of the connecting main bodies 10 and 30 is increased. However, according to the above configuration, the moving radius can be reduced. Therefore, the clearance gap between the door 2 and the suspension side vertical frame 6a can be made comparatively small.

Further, the support shafts 23 and 24 provided in the first connection body 10 and the support shafts 43 and 44 provided in the second connection body 30 are in a closed state as shown in FIG. A straight line 56 that connects the axial centers of the first arm support shafts 23 and 43 and a straight line 66 that connects the axial centers of the second arm support shafts 24 and 44 are provided so as to slightly intersect. That is, a straight line 56 that connects the axis of the first arm support shaft 23 and the axis of the first arm support shaft 43 that respectively constitute the rotation fulcrum of each end of the first connection arm 50 described later, and a first A straight line 66 connecting the axis of the second arm support shaft 24 and the axis of the second arm support shaft 44, which respectively constitute the pivot points of the ends of the two connecting arms 60, is provided so as to slightly intersect. It has been.
As will be described later, the intersecting aspect of the straight line 56 and the straight line 66 may be substantially intersected when the door 2 in the closed state is opened, for example, the degree of opening from the closed state. In a relatively small state (for example, a state where the opening angle described later is about 0 ° to 20 °), that is, the straight line 56 and the straight line 66 do not intersect in the closed state, that is, in the closed state. It is good also as a state which touches or is in contact.

In the present embodiment, in the closed state, the support shafts are positioned so that the door 2 is difficult to rotate toward the back side, and the intersections of the straight lines 56 and 66 are set. Yes. In the present embodiment, the intersection on the straight line 66 is located on the door 2 side in the closed state, that is, the distance from the axis of the second arm support shaft 44 to the intersection is the distance from the intersection. It is set to be larger than the distance to the two-arm support shaft 24.
Furthermore, in this embodiment, while the door 2 is completely opened as described later, the support shafts are positioned so that the door 2 is difficult to rotate toward the inner wall w side, and the straight lines are arranged. 56 and 66 intersections are set. In the present embodiment, as shown in FIG. 6A, the intersection on the straight line 66 is positioned on the suspension side vertical frame 6 a side, that is, from the axis of the second arm support shaft 44 to the intersection. Is set to be smaller than the distance from the intersection to the second arm support shaft 24.

  The installation location of each of the support shafts 24, 44, 23, and 43 can be set as appropriate. For example, when the door 2 is opened and closed, the suspension-side end surface 3 of the door 2 and the suspension In order to reduce the gap between the door 2 and the suspension side vertical frame 6a, the opening side surface 7 of the door 2 does not contact (abut) the opening side surface 7 of the side vertical frame 6a. The distance between the front side edge portion 3 (the chamfered portion 3a) and the axis of the second arm support shaft 24 is such that the distance between the straight line 66 and the opening side surface 7 intersects the second arm support shaft 24. You may make it slightly smaller than the distance to an axial center. Similarly, when the door 2 is opened and closed, the front surface 4 of the door 2 and the chamfered portion 7a of the hanging side vertical frame 6a do not contact (contact), and these doors 2 and the distance between the front surface 4 of the door 2 and the axis of the second arm support shaft 24 is set to be smaller than the straight line 66 and the chamfered portion. You may make it slightly smaller than the distance from the intersection which 7a crosses to the axial center of the said 2nd arm support shaft 24. FIG.

As shown in FIG. 1A and FIG. 3, the major axis of the second adjustment block 40 is substantially parallel to the opening side surface 7 near the front side portion of the suspension side vertical frame 6a. Longitudinal adjustment long holes 45, 45 are provided along the horizontal direction (the width direction of the second adjustment block 40, the prospective direction of the suspension side vertical frame 6a). The front and rear adjustment screws 38 and 38 are inserted into the front and rear adjustment long holes 45 and 45, respectively, and are screwed into the female screw holes 33 and 33 provided in the second casing 31, thereby the second adjustment block 40. Is fixed to the second casing 31. Further, the fixing position of the second adjustment block 40 can be adjusted along the major axis direction of the longitudinal holes 45 for front and rear adjustment. That is, as will be described later, the second adjustment block 40 can be fixed to the second casing 31 so that the position of the second adjustment block 40 can be adjusted in the front-rear direction (the prospective direction of the hanging side vertical frame 6a, the wall thickness direction). It is configured.
The front / rear adjustment screw 38 may be a washer (washer) built-in screw.

As shown in FIG. 3, the second connection main body 30 configured as described above is covered with second covers 39 and 39 made of, for example, a synthetic resin, as shown in FIG. 3. The second cover 39 is detachably attached to the second connection body 30 by a locking claw or the like provided on the back surface thereof as described above. In a state where the second covers 39, 39 are attached to the second connection main body 30, the above-described fixing stoppers and the like of the second connection main body 30 are covered, and the aesthetic appearance is excellent.
In this example, the second cover 39, 39 is illustrated as being vertically separated so that the connecting arms 50, 60 described later are exposed and do not interfere with the cover body. Similar to the cover 19, an embodiment may be adopted in which an opening is provided.
Further, in FIG. 3, reference numeral 39 a is a concave groove provided in order to reduce the amount of protrusion from the opening side surface 7 of the suspension side vertical frame 6 a of the second cover 39. By forming this concave groove 39a, as will be described later, when the door 2 is opened and closed, the front side edge of the suspension side end surface 3 of the door 2 that moves close to the opening side surface 7 is provided. The contact between the (chamfered portion 3a) and the second covers 39, 39 is avoided.

As shown in FIGS. 1 (a) and 7 (b), the first connection arm 50 has a first arm support shaft of the first connection body 10 in a shaft insertion hole 52 provided at one end thereof. The first arm support shaft 43 of the second connection body 30 is inserted into the shaft insertion hole 54 provided at the other end, and the first connection body 10 and the second connection are connected. The main body 30 is connected.
As the door 2 is opened and closed, the first connecting arm 50 has the support shafts 23 and 43 connected to the ends thereof as pivot points, respectively, and the first connection body 10 and the second connection body. It moves relative to 30.
The first connecting arm 50 is substantially U-shaped in a plan view, and when the door is closed, the one end arm 51 extends from the one end where the shaft insertion hole 52 is provided toward the substantially back side. The other end arm portion 53 extending from the other end portion where the shaft insertion hole 54 is provided toward the substantially back side, and the intermediate arm portion 55 connecting the one end arm portion 51 and the other end arm portion 53. I have.
As shown in FIG. 7B, the first connection arm 50 is formed in the first arm receiving recesses 21 and 41 provided in the first connection body 10 and the second connection body 30 in the closed state. The structure is generally accommodated.

As shown in FIGS. 1 (a) and 7 (a), the second connecting arm 60 has a second arm support shaft of the first connecting body 10 in a shaft insertion hole 62 provided at one end thereof. On the other hand, the second arm support shaft 44 of the second connection body 30 is inserted into the shaft insertion hole 64 provided at the other end, and the first connection body 10 and the second connection are connected. The main body 30 is connected.
As the door 2 is opened and closed, the second connecting arm 60 has the support shafts 24 and 44 to which the ends thereof are connected as pivot points, and the first connecting body 10 and the second connecting body 30. Move relative to.
Further, the second connecting arm 60 is substantially U-shaped in a plan view, substantially the same as the first connecting arm 50, and in a closed state, is substantially from one end portion where the shaft insertion hole 62 is provided. One end arm portion 61 extending toward the back side, the other end arm portion 63 extending toward the substantially back side from the other end portion where the shaft insertion hole 64 is provided, the one end arm portion 61 and the other end arm portion 63. And an intermediate arm portion 65 for connecting the two.

As shown in FIG. 7A, the second connecting arm 60 is provided in the second arm receiving recesses 22 and 42 provided in the first connecting body 10 and the second connecting body 30 in the closed state. The structure is generally accommodated.
In other words, in the present embodiment, the first connecting arm 50 and the second connecting arm 60 are respectively provided in the arm receiving recesses 21, 41, and 22 of the first connecting body 10 and the second connecting body 30 that are provided respectively. 42 in the closed state. In other words, in a state where the connecting arms 50 and 60 are generally accommodated as described above, the first connecting body 10 and the second connecting body 30 are arranged in close proximity to each other, and the connecting arms 50 are connected. , 60 are generally accommodated and not exposed, and the aesthetics at the connecting portion can be improved. That is, it becomes a structure like a hidden hinge.

The first connection arm 50 and the second connection arm 60 are made of, for example, a metal material. Further, in the present embodiment, the first connection arm 50 is formed to have higher mechanical strength and rigidity than the second connection arm 60, and as shown in the figure, the first connection arm 50 is higher in the vertical direction than the second connection arm 60. The height of is relatively large.
In addition, in order to make the mechanical strength and rigidity of the first connection arm 50 larger than those of the second connection arm 60, the material-specific strengths of the first connection arm 50 and the second connection arm 60 are varied. Each may be used.
Further, in the present embodiment, a shaft insertion hole is provided at each end of each connection arm 50, 60, and each support shaft provided in each connection body 10, 30 is inserted through the shaft insertion hole. Although the aspect which attached each end part of the connection arms 50 and 60 to each connection main body 10 and 30 rotatably is illustrated, for example, it is a pin member on the upper and lower sides of each end part of each connection arm 50 and 60, for example. Etc., and the pin members are inserted into pin support recesses or pin support holes or the like provided in the connection main bodies 10 and 30, so that the end portions of the connection arms 50 and 60 are connected to the connection main bodies. It is good also as an aspect attached to 10,30 so that rotation is possible.

As described above, according to the door connecting structure using the door connecting member 1 according to the present embodiment, the door 2 is accommodated in the mounting recess 5 of the door 2 and the mounting recess 9 of the hanging side vertical frame 6a. The first connection body 10 and the second connection body 30 are connected by the first connection arm 50 and the second connection arm 60. Thereby, simplification of the structure of the said door connection member 1 can be achieved.
Further, each end portion of the first connection arm 50 and the second connection arm 60 is structured to be rotatably attached to the first connection body 10 and the second connection body 30, respectively. Like the above-described conventional concealed hinge, the door 2 is free from the possibility of misalignment or the like caused by sliding of the fulcrums on the slide side of the hinges attached to different locations along the height direction. And the suspension side vertical frame 6a can be held substantially uniformly in the height direction. Thereby, the aesthetics in the connection part of the door 2 can be improved, and it can also prevent that the door-end side of this door 2 hangs down.

In particular, in the present embodiment, each of the connecting arms 50 and 60 has a substantially U shape in a plan view, and therefore, for example, the aesthetics are hindered compared to a case in which each connecting arm has a substantially linear shape. Without interference, it is possible to reduce the interference between each of the connecting arms and the door or the mounting target when the door is opened.
That is, when the doors are opened, when the connecting arms are substantially linear, the connecting arms come into contact with the side walls of the arm receiving recesses and the door opening operation is hindered. However, in the present embodiment configured as described above, the side walls of the arm receiving recesses that are close to each other so as to be folded as the door is opened are formed in the substantially U shape as described later. The door opening operation is performed so as to be received in the open space of each of the connected arms 50 and 60. Accordingly, the doors can be opened without the connection arms 50, 60 coming into contact with the side walls of the arm receiving recesses, and the door 2 can be opened to about 180 ° as will be described later. Further, as described later, it is not necessary to cut out the side wall portion, and aesthetics can be improved.

Next, an example of position adjustment between the door 2 and the door frame 6 connected using the door connecting member 1 configured as described above will be described with reference to FIGS. 1 and 5.
After assembling the door connecting member 1 as described above and attaching the door connecting member 1 to the hanging side end face 3 of the door 2 and the opening side surface 7 of the hanging side vertical frame 6a, 2 is adjusted, the door 2 is in an open state, the suspension side end surface 3 of the door 2 and the opening side surface 7 of the suspension side vertical frame 6a are exposed, and the respective covers 19, 39, 39 are exposed. May be removed from each coupling body 10, 30 and performed as follows.

<Vertical position adjustment>
When the door 2 is moved upward relative to the suspension side vertical frame 6a, the bolt head 26a of the vertical adjustment bolt 26 is moved by a tool such as a spanner or a wrench as shown in FIG. By operating in the screw acting direction, the amount of advance / retreat of the vertical adjustment bolt 26 relative to the first adjustment block 20 is adjusted. In the present example, the vertical adjustment bolt 26 is a right-hand screw, and when the vertical adjustment bolt 26 is operated in the direction of loosening (the arrow direction in FIG. 5B), the vertical adjustment bolt 26 is The first adjustment block 20 moves in the direction protruding from the female screw hole 25 (see FIG. 5A) (extension direction).
The bolt head 26 a of the vertical adjustment bolt 26 moves in a direction protruding from the first adjustment block 20, that is, the vertical adjustment bolt 26 extends with respect to the first adjustment block 20. The first casing 11 connected by one adjustment block 20 and the connection support pins 28, 28 is moved upward with relative movement along the vertical adjustment elongated holes 13, 13 of the connection support pins 28, 28. Move towards. Thereby, the door 2 to which the first casing 11 is fixed moves upward with respect to the suspension side vertical frame 6a.

On the other hand, when the door 2 is moved downward with respect to the suspension side vertical frame 6a, although not shown, the upper and lower adjustment bolts 26 are arranged in the opposite direction (tightening direction in the figure). By operating the bolt head 26a, the vertical adjustment bolt 26 moves in a direction (shortening direction) into the female screw hole 25 (see FIG. 5A) of the first adjustment block 20, and the first casing. 11 moves downward. Thereby, the door 2 to which the first casing 11 is fixed moves downward with respect to the suspension side vertical frame 6a.
In the present embodiment, as described above, the first casing 11 and the first adjustment block 20 are connected by a plurality of (two in the illustrated example) connection support pins 28, and thus in the vertical direction. Even when the position adjustment is performed, the relative vertical movement is stably performed.
In addition, in the aspect which provided the door connection member 1 in multiple places (this embodiment two places) along the height direction of the connection part of the door 2 and the door frame 6 like this embodiment, it is the above-mentioned. When adjusting the vertical position as described above, when the door 2 is moved upward, the door 2 is adjusted little by little from the one provided on the upper side, and when the door 2 is moved downward, the lower side You may make it adjust little by little in order from what was provided in.

<Left / right position adjustment>
2 with respect to the suspension side vertical frame 6a on the left side in the closed state shown in FIG. 2 (the suspension side end surface 3 of the door 2 facing in the closed state and the opening side surface 7 of the suspension side vertical frame 6a) 5, the operation portion of the male screw portion 28a of the connection support pin 28 is operated in the screw action direction with a tool such as a Phillips screwdriver, as shown in FIG. In this example, the male screw portion 28a of the connection support pin 28 is a right-hand screw, and the male screw portion 28a is operated by operating in the direction in which the male screw portion 28a is tightened (the arrow direction in FIG. 5B). The first adjustment block 20 provided with the female screw portion 27 to be screwed to the first casing 11 and the first casing 11 relatively move along the male screw portion 28a. That is, the first adjustment block 20 and the first casing 11 move in a direction away from each other. Thereby, the door 2 to which the first casing 11 is fixed moves in a direction away from the hanging vertical frame 6a (left side in FIG. 2).

On the other hand, the door 2 is placed on the right side in the closed state shown in FIG. 2 with respect to the suspension side vertical frame 6a (the suspension side end surface 3 of the door 2 facing in the closed state and the opening side surface of the suspension side vertical frame 6a). In the case of moving in the direction close to 7), although not shown, by operating the operating portion of the male thread portion 28a of the connection support pin 28 in the opposite direction (in the direction of loosening in the figure). The first adjustment block 20 and the first casing 11 move in a direction approaching each other. Thereby, the door 2 to which the first casing 11 is fixed moves toward the direction close to the hanging vertical frame 6a (right side in FIG. 2).
In addition, when adjusting the left-right position, as in the above-described vertical position adjustment, each connection support pin 28 may be adjusted little by little.

<Previous position adjustment>
When the door 2 is moved to the near side in the closed state shown in FIG. 2 with respect to the door frame 6, the front and rear adjustment screws for fixing the second adjustment block 40 to the second casing 31. 38 and 38 are loosened with a tool such as a Phillips screwdriver so that the relative movement along the longitudinal adjustment holes 45 and 45 of the front and rear adjustment screws 38 and 38 is possible. 2 Move toward the front side (right side in FIG. 5A) with respect to the casing 31, and tighten the front and rear adjustment screws 38 at appropriate positions. Accordingly, the first adjustment block 20 connected to the second adjustment block 40 via the connection arms 50 and 60 faces the front side (right side in FIG. 5A) with respect to the door frame 6. The door 2 fixed to the first adjustment block 20 via the first casing 11 moves to the front side (right side in FIG. 5A) with respect to the door frame 6.

  On the other hand, when the door 2 is moved to the back side in the closed state shown in FIG. 2 with respect to the door frame 6, the front and rear adjustment screws 38, 38 are loosened as described above. Then, the second adjustment block 40 is moved with respect to the second casing 31 in the direction opposite to the above (back side (left side in FIG. 5A)), and each front and rear adjustment screw is appropriately positioned. Tighten 38. As a result, the first adjustment block 20 connected to the second adjustment block 40 via the connection arms 50 and 60 moves toward the back side with respect to the door frame 6, and the first adjustment block 20 The door 2 fixed via the first casing 11 moves to the back side with respect to the door frame 6.

As described above, according to the door connection structure in which the door 2 is connected to the door frame 6 using the door connection member 1 according to the present embodiment, the workability at the time of adjusting the vertical position is improved even though the structure is simple. Can be made. That is, the vertical position can be adjusted by a simple operation, and even one person can easily work.
Further, as described above, the vertical adjustment bolt 26 constituting the vertical adjustment screw portion is screwed into the female screw hole 25 constituting the block side screw portion of the first adjustment block 20, and is advanced and retracted vertically by the screw action. Therefore, it is possible to reliably prevent the positional deviation of the adjusted vertical position from being adjusted, and it is possible to easily and reliably adjust the slight vertical position.
Furthermore, according to the door connection structure using the door connection member 1 according to the present embodiment, not only the vertical position adjustment but also the door 2 can be adjusted in the left-right direction and the front-rear direction with respect to the door frame 6. It is possible to adjust the position in three directions after the door 2 is connected to the door frame 6.

  Next, an example of the opening / closing operation | movement of the door 2 connected with the door frame 6 using the door connection member 1 set as the said structure is demonstrated based on FIGS. In addition, the opening angle shown below has shown the angle which the suspension base side end surface 3 of the door 2 and the opening side surface 7 of the suspension base side vertical frame 6a make. Further, in FIG. 8, the door 2A in a closed state with an opening angle of 0 ° is indicated by a solid line, the door 2B in a state in which the opening angle is approximately 45 ° is indicated by a broken line, and the door 2C in a state in which the opening angle is approximately 90 ° is a single point. The door 2D in the state where the opening angle is about 135 ° is shown by a chain line, and the door 2E in the state where the opening angle is about 180 ° is shown by a solid line.

  First, as shown in FIGS. 7A and 7B, the door 2 (the state of the door 2A in FIG. 8) in the closed state (the state where the opening angle is 0 °) is changed to the handle 2a (FIG. 2). In the state where the opening angle is about 45 ° (the state of the door 2B in FIG. 8), the second connecting arm 60 is a second member provided on the second connecting body 30. The first connection main body 10 that rotates toward the front side with the arm support shaft 44 as a fulcrum and is connected to one end of the second connection arm 60 has a second position with the second arm support shaft 24 as a fulcrum. It rotates with respect to the connecting arm 60. In this state, although not shown in the drawing, the convexly bent portion side of the second connecting arm 60 that is substantially U-shaped, that is, the intermediate arm portion 65 side is moved to the second state as the door 2 is opened. It will be in the state located so that the connection main body 30 and the 1st connection main body 10 may protrude in the fan-shaped space side formed spaced apart.

When the first connection arm 50 is opened as described above, the first connection arm 50 is in front of the first arm support shaft 43 provided in the second connection body 30 as a fulcrum, like the second connection arm 60. The first connection main body 10 that is rotated toward the side and connected to one end of the first connection arm 50 rotates with respect to the first connection arm 50 with the first arm support shaft 23 as a fulcrum. . In this state, although not shown in the figure, like the second connecting arm 60, the convexly bent portion side of the first connecting arm 50 that is substantially U-shaped, that is, the intermediate arm portion 55 side is connected to the door 2. With the opening, the second connection main body 30 and the first connection main body 10 are positioned so as to protrude toward the fan-shaped space formed apart from each other.
As described above, the first connection main body 10 connected to the second connection main body 30 via the connection arms 50 and 60 is moved relative to the second connection main body 30 with the movement of the connection arms 50 and 60. 8, the door 2 is opened in a state where the chamfered portion 3a of the suspension side end face 3 is close to the opening side surface 7 of the suspension side vertical frame 6a. The

Next, when the door 2 is opened until the opening angle is about 135 ° (the state of the door 2D in FIG. 8), the first connecting body 10 is connected to the connecting arms 50, 60 as described above. It moves with respect to the 2nd connection main body 30 with this movement. In this state and the state before and after this, the opening operation is performed so that the front surface 4 near the suspension side end of the door 2 approaches and faces the chamfered portion 7a of the suspension side vertical frame 6a.
Although not shown in this state and the states before and after this state, as described above, each arm is accommodated in the U-shaped open space of each of the connection arms 50 and 60 each having a substantially U shape. The opening operation is performed so as to receive the side wall portion on the near side of the recesses 21, 22, 41, 42 (the portion on the near side of the hanging side end of the door 2, the portion on the near side of the hanging side vertical frame 6 a). Made.

Next, in a state where the door 2 is completely opened with a further opening operation of the door 2 (a state where the opening angle is about 180 °, the state of the door 2E in FIG. 8), FIG. As shown in (b), the front surface 4 near the suspension side end of the door 2 and the front side surface 8 of the suspension side vertical frame 6a face each other.
Moreover, in this state, each arm accommodation recessed part 21, 22, 41, 42 of the 1st connection main body 10 and the 2nd connection main body 30 each opened toward the said door-end side vertical frame 6b (refer FIG. 2) side. Each of the connecting arms 50, 60 is in a state where each arm receiving recess is provided between the one end arm portions 51, 61 and the other end arm portions 53, 63, that is, in a U-shaped open space. It will be in the received state so that the said side wall part of the near side of 21, 22, 41, 42 may be pinched | interposed.
The closing operation from the state where the door is completely opened as described above is performed in the same manner although it is the reverse of the above.

The opening / closing operation | movement of the above doors 2 is further demonstrated based on FIG. 8 which shows notionally the door connection structure using the door connection member 1 which concerns on this invention.
From the state of the closed door 2A to the state of the door 2B, the state of the door 2C, the state of the door 2D, and the state of the door 2E in order, the first connection arm 50 is the first on the second connection main body 30 side. The arm support shaft 43 is turned toward the front side with the arm support shaft 43 as a fulcrum, and the second connection arm 60 is turned toward the front side with the second arm support shaft 44 on the second connection body 30 side as a fulcrum. Further, the first connection main body 10 in which one end portions of the connection arms 50 and 60 are rotatably connected is moved toward the front side with relative movement with the connection arms 50 and 60. Then, the door 2 is opened.
Further, as shown in FIG. 8, the door 2 and the suspension side vertical frame 6a in which each of the connection main bodies 10 and 30 is accommodated and connected are always kept close to each other as shown in FIG. 2 is opened and closed.

When the opening operation is performed from the closed state as described above and the door is opened, and when the closing operation is performed from the opened state and the door is closed, as shown in FIG. The straight line 56 connecting the shaft centers of the support shafts 23 and 43 and the straight line 66 connecting the shaft centers of the second arm support shafts 24 and 44 are always in a state of intersecting with each other, The two connecting arms 60 are configured to move independently of each other.
Thus, when the straight line 56 and the straight line 66 cross each other, the connecting arms 50 and 60 regulate each other. Therefore, when the door 2 is opened and closed, the door 2 is moved along a certain track. The door 2 can be opened and closed smoothly.

In the present embodiment, as an example of a specific structure of each of the connecting arms 50 and 60, an example of a substantially U shape in plan view is illustrated, but as shown in the conceptual diagram of FIG. A substantially linear first connecting arm having both ends connected to the one arm support shafts 23, 43 and a substantially linear second connecting arm having both ends connected to the second arm support shafts 24, 44, You may make it comprise each connection arm. In such a case, for example, arm receiving recesses in which the side wall portions are notched may be used so as not to contact the above-described adjacent side wall portions of the arm receiving recesses.
Moreover, the arrangement | positioning aspect of the rotation fulcrum of each edge part in each above-mentioned connection arm 50 and 60 is an example, and the said 1st connection arm 50 and the said 2nd connection arm 60 are closed as mentioned above. When the door is opened from the state, a straight line 56 connecting the rotation fulcrum of each end of the first connection arm 50 and a straight line 66 connecting the rotation fulcrum of each end of the second connection arm 60 are provided. Any structure may be used as long as the structures move independently of each other so as to substantially intersect.
Furthermore, in the present embodiment, as described above, an example is illustrated in which the door 2 can be opened from a state where the opening angle is 0 ° until the opening angle is 180 °. However, the opening angle is smaller than 180 °. It is good also as an aspect which can be opened until it becomes or until it becomes an opening angle larger than 180 degrees.

Furthermore, in the present embodiment, the first connection arm 50 and the second connection body 30 are connected to the first connection arm 50 and the second connection body 30 as a connection arm that connects the first connection main body 10 and the second connection main body 30 so as to allow relative movement accompanying the opening / closing operation of the door 2. Although the aspect provided with the connection arm 60 is illustrated, in addition, another second connection arm 60 having the same configuration as the second connection arm 60 is provided below the first connection arm 50. It is good also as an aspect which provides. As described above, when the door connecting member is provided with the second connecting arms 60 and 60 serving as the guide arms on the upper and lower sides of the first connecting arm 50, the door opening and closing operation is more stably performed.
Furthermore, as described above, the present invention is not limited to the mode including one first connection arm 50 and two second connection arms 60, 60, and one of the first connection arm 50 and the second connection arm 60 can be used. One or more of at least one of them may be further provided. In addition, in the case of having such a plurality of connecting arms, the first connecting arm 50 and the second connecting arm 60 may be alternately provided up and down.

In the present embodiment, the door 2 is opened and closed as a connecting arm that connects the first connecting body 10 and the second connecting body 30 so as to be capable of relative movement with the opening and closing operation of the door 2. In this case, an example in which a plurality of connecting arms configured to move independently from each other is illustrated, but the present invention is not limited to such a mode. For example, a plurality of (for example, two) connecting arms connected by a vertical rotation shaft may be provided as in the conventional hidden hinge described above. In this case, one end of one of the two connecting arms is rotatably attached to the support portion of the first connecting body, and the other end is slid into a slide groove provided in the second connecting body. Of the two connecting arms, one end of the other connecting arm is rotatably attached to the support portion of the second connecting body, and the other end is connected to the first connecting arm. It is good also as a structure supported by the slide groove provided in 1 connection main body so that sliding and rotation are possible.
In such a hidden hinge, as the door is opened and closed, the two connecting arms rotate relative to each other with the vertical rotation shaft as a fulcrum, and each end rotates with the support portion as a fulcrum. At the same time, each of the other ends slides along the slide groove while rotating with respect to the slide groove, and the first connection body and the second connection body move relatively to open and close the door. However, the present invention can be applied to such a thing.

Further, in the present embodiment, the first connecting body 10 is attached to the door 2 side, the second connecting body 30 is attached to the door frame 6 side, and the vertical adjustment screw portion 26 is connected to the door 2 via the first casing 11. Although the aspect provided in the upper end part of the 1st adjustment block 20 where this load is applied is illustrated, it is good also as an aspect which attaches each on the opposite side. In this case, the block side screw portion 25 and the vertical adjustment screw portion 26 of the first adjustment block 20 are placed on the lower end portion side of the first adjustment block 20 to which the load of the door 2 is applied via the connection arms 50 and 60. The first casing bottom surface portion 16 may be grasped as the adjustment receiving portion. Even if it is set as such an aspect, the door 2 and the door frame 6 can be moved up and down relatively by operating the up-and-down adjustment screw part 26 in a screw action direction.
Furthermore, in the present embodiment, as means for moving the first casing 11 and the first adjustment block 20 relatively up and down, a female screw hole 25 provided in the first adjustment block 20 and the female screw hole 25 are provided. Although the aspect comprised by the up-and-down adjustment bolt 26 screwed in is illustrated, it is not restricted to such an aspect, It is made to advance / retreat with respect to the said 1st adjustment block 20, and its advance / retreat amount Any adjustment screw may be used as long as it has an adjustment operation part for adjusting the adjustment and an adjustment contact part that contacts the first casing 11. For example, a male screw part (block side screw part) is projected from the first adjustment block 20, a nut member screwed into the male screw part is used as a vertical adjustment screw part, and a side surface part of the nut member is an adjustment operation part, an upper end It is good also as an aspect which makes a part (or lower end part) an adjustment contact part.

Moreover, in this embodiment, although the aspect provided with the two connection support pins 28 and 28 was illustrated as a means to connect the said 1st casing 11 and the said 1st adjustment block 20, this connection support pin The number may be one, or three or more, and the first casing 11 may be provided with the vertical adjustment long holes 13 according to the number.
Further, in the present embodiment, the left and right sides are connected by a connection support pin 28 as means for connecting the first casing 11 and the first adjustment block 20 and a female screw portion 27 provided in the first adjustment block 20. Although the aspect which enabled position adjustment is illustrated, it is not restricted to such an aspect. For example, an aspect in which the left and right positions cannot be adjusted, that is, protrudes from the first adjustment block 20 toward the first casing 11 and is movable along the vertical adjustment elongated holes 13 provided in the first casing 11. It is good also as a connection projection part made with and being connected to the 1st casing 11. Further, in this case, the embodiment is not limited to the aspect in which the up / down adjustment long hole 13 is provided in the first casing back portion 12. For example, the casing side surface portion is provided, and the long hole is formed in the side surface portion. It is good also as an aspect which provides the said connection protrusion part in the side part of a block.

Furthermore, in the present embodiment, a fixing stopper that fixes the second adjustment block 40 to the second casing 31 is provided before and after the female casing hole 33 is provided in the second casing 31 and screwed into the female thread hole 33. Although the aspect made into the adjustment screw 38 is illustrated, it is not restricted to such an aspect. For example, the second casing 31 is provided with a bolt insertion hole, a nut member is provided on the back surface (recess side surface) of the casing, and the fixing member is configured by the bolt member screwed into the nut member. It may be.
Further, in the present embodiment, the second adjustment block 40 is provided with a longitudinal hole 45 for longitudinal adjustment, and the second adjustment block 40 and the second casing 31 are relatively front and rear (the width of the second connecting body). Although a mode in which position adjustment is possible in the direction) is illustrated, a mode in which such front-rear position adjustment means is not provided is also possible.

Next, a modification of the door connecting member according to the present invention will be described with reference to FIG.
In addition, about the specific structure of each door connection member which concerns on each following modification, since it is substantially the same as the door connection member 1 which concerns on the said 1st Embodiment, description is abbreviate | omitted and it mainly demonstrates a different structure. .

Fig.9 (a) is explanatory drawing which shows notionally an example of the door connection structure using 1 A of door connection members which concern on a 1st modification. In addition, in Fig.9 (a), the side plate as a door and attachment object is shown with the dashed-two dotted line.
This modification shows an example in which a door connecting member 1A is provided at a connecting portion between a side plate 6Aa of a storage such as a cabinet and a door 2F for closing or opening a storage space of the storage.
The first connecting body 10A of the door connecting member 1A is housed and fixed in a mounting recess 5A provided on the back surface 3A in the vicinity of the end face 4A of the hanging side end of the door 2F, and the second connecting body. 30A is accommodated and fixed in a mounting recess 9A provided on the front end surface 7A of the side plate 6Aa.
Further, each end of the first connecting arm 50A is rotatably attached to the support shafts 23A and 43A as described above, and each end of the first connecting arm 60A is rotated around the support shafts 24A and 44A as described above. It is mounted movably. That is, also in the present modification, the support shafts 23A and 43A on the first connection main body 10A side are relatively close to the suspension side end surface 4A side, which is a surface close to the side plate 6Aa, when the door is opened. On the other hand, the support shafts 24A and 44A on the second connecting body 30A side are provided on the outer surface 8A side, which is the surface on the side close to the door 2F, when the door is opened. It is provided in a relatively close position.

Also in this modification, the straight line 56A connecting the rotation fulcrum of each end of the first connection arm 50A and the straight line 66A connecting the rotation fulcrum of each end of the second connection arm 60A are in the closed state. It is set as the aspect which crossed.
In the door connecting structure using the door connecting member 1A having the above-described configuration, the first connecting arm 50A and the second connecting arm with respect to the second connecting main body 30A in the same manner as the door 2F is opened. The first connecting body 10A moves with the movement of 60A.
Also in this modified example, the same effects as in the first embodiment can be obtained.
In the present modification, the position adjustment described in the first embodiment is performed by adjusting the left-right position in the front-rear position adjustment (the front end face 7A of the side plate 6Aa and the end face 4A of the suspension side end of the door 2F). The front / rear position adjustment corresponds to the left / right position adjustment (position adjustment in the width direction of the door 2F with respect to the side plate 6Aa). That is, as described above, position adjustment in three directions is possible.

FIG.9 (b) is explanatory drawing which shows notionally an example of the door connection structure using the door connection member 1B which concerns on a 2nd modification. In addition, in FIG.9 (b), the door and the other door as an attachment object are shown with the dashed-two dotted line.
In this modification, the example which provided the door connection member 1B in the connection part of the door 2G and the door 2H which comprise a folding door is shown. That is, in this modification, the attachment target of the door 2G is grasped as the other door 2H.
The first connecting body 10B of the door connecting member 1B is housed and fixed in a mounting recess 5B provided on the connecting portion side end surface 3B of the door 2G, and the second connecting body 20B is connected to the other door 2H. Are accommodated and fixed in a mounting recess 9B provided on the end surface 7B of the connecting portion.
Further, the first connecting arm 50B is rotatably attached to the support shafts 23B and 43B in the same manner as described above, and the second connecting arm 60B is rotated around the support shafts 24B and 44B in the same manner as described above. It is mounted movably. That is, also in the present modification, the support shafts 23B and 43B on the first connection main body 10B side relatively approach the rear surface 4B side, which is the surface close to the other door 2H, when the door is opened. On the other hand, the support shafts 24B and 44B on the second connection main body 30B side are compared with the back surface 8B side which is the surface on the side close to the door 2G when the door is opened. It is provided so that it is in a close position.

Also in this modified example, the straight line 56B connecting the rotation fulcrum of each end of the first connection arm 50B and the straight line 66B connecting the rotation fulcrum of each end of the second connection arm 60B are in the closed state. It is set as the aspect which crossed.
In the door connecting structure using the door connecting member 1B configured as described above, the first connecting main body 10B and the second connecting main body 30B are opened as the folding door composed of the door 2G and the door 2H is opened (folded). Means that the folding door is opened by moving relatively with the movement of the first connecting arm 50B and the second connecting arm 60B.
Also in this modified example, the same effects as in the first embodiment can be obtained.
Note that the position adjustments described in the first embodiment are substantially the same in the present modification except for the attachment target, and can be adjusted in three directions.

  Moreover, in the said 1st Embodiment and each modification, although the door, door frame, etc. which each provided the attachment recess were illustrated as an example of the door connected by each door connection member, and an attachment object, in this invention The application location of the door connecting member can be applied to a connecting portion between various doors and an attachment target.

1,1A, 1B Door connecting member 2,2F, 2G Door 2H The other door (attachment target)
3 Door end side (mounting surface)
3A Back surface (mounting surface) near the end surface of the door's suspension end
3B Door connection side end surface (mounting surface)
5,5A, 5B Door installation recess (recess)
6a Vertical frame on the hanger side (target for installation)
6Aa Side plate of storage (attachment target)
7 Open side near the front side of the vertical frame (mounting surface)
7A Front side end face of side plate (mounting surface)
7B Connection side edge of the other door (mounting surface)
9 Vertical frame mounting recess (recess)
9A Side plate mounting recess (recess)
9B Installation recess for the other door (recess)
10, 10A, 10B 1st connection main body 11 1st casing 12 1st casing back part (casing back part)
13 Long hole for vertical adjustment (long hole)
14 First casing top surface (adjustment receiving part)
20 1st adjustment block 21 1st arm accommodation recessed part (arm accommodation recessed part)
22 Second arm housing recess (arm housing recess)
23, 23A, 23B first arm support shaft (rotation fulcrum on the first connecting body side of the first connecting arm)
24, 24A, 24B second arm support shaft (rotation fulcrum on the first connecting body side of the second connecting arm)
25 Female threaded hole (Block side threaded part)
26 Vertical adjustment bolt (vertical adjustment screw, bolt member)
26a Bolt head (adjustment operation part, adjustment contact part)
27 Female thread portion 28 Connection support pin (connection protrusion)
28a Male thread portion 28b One end portion of the connection support pin 30, 30A, 30B Second connection main body 31 Second casing 38 Front / rear adjustment screw (fixing stopper)
40 Second adjustment block 41 First arm receiving recess (arm receiving recess)
42 Second arm housing recess (arm housing recess)
43, 43A, 43B first arm support shaft (rotation fulcrum on the second connecting body side of the first connecting arm)
44, 44A, 44B Second arm support shaft (rotation fulcrum on the second connecting body side of the second connecting arm)
45 Front / rear adjustment slot (adjustment slot)
50, 50A, 50B 1st connection arm (connection arm)
52 A shaft insertion hole on the first connection body side of the first connection arm (a shaft insertion hole provided at one end of the first connection arm)
54 A shaft insertion hole on the second connection main body side of the first connection arm (a shaft insertion hole provided at the other end of the first connection arm)
56, 56A, 56B A straight line 60, 60A, 60B connecting the rotation fulcrum at each end of the first connecting arm.
62 A shaft insertion hole on the first connection main body side of the second connection arm (a shaft insertion hole provided at one end of the second connection arm)
64 A shaft insertion hole on the second connection body side of the second connection arm (a shaft insertion hole provided at the other end of the second connection arm)
66, 66A, 66B A straight line connecting the rotation fulcrum of each end of the second connecting arm

Claims (7)

A door connecting member for connecting the door to the object to be attached so as to be openable and closable,
A first casing fixed to one of the attachment surface portion of the door and the attachment surface portion to be attached, a first connection body having a first adjustment block attached to the first casing, and a first connection body attached to the other. Two connection main bodies, and a connection arm that connects the second connection main body and the first adjustment block in association with the opening and closing operation of the door so as to enable relative movement thereof,
The first adjustment block is provided with an adjustment operation portion for adjusting the amount of advancement and retraction, and an adjustment contact portion for contacting the first casing. While the provided vertical adjustment screw portion, the block side screw portion screwed into the vertical adjustment screw portion, and the connecting projection portion connected to the first casing are provided,
The first casing is provided with an elongated hole through which the connecting projection is inserted and allowing the vertical movement of the first casing, and an adjustment receiving portion with which the adjustment contact portion comes into contact. The door connecting member, wherein the first casing and the first adjustment block are relatively moved up and down by operating in an action direction. In claim 1,
A female threaded portion in which a long hole of the first casing is provided in a casing back portion arranged substantially parallel to the mounting surface portion, and penetrates the first adjustment block in a horizontal direction, one of which is open toward the casing back portion. With a configuration
The connecting projection has a male threaded portion that engages with the female threaded portion, protrudes from the one opening toward the back of the casing, has one end inserted through the elongated hole, and the one end is the first casing. It is a connection support pin that is rotatably connected to
The first casing and the first adjustment block are relatively moved along the male screw portion by operating an operation portion of the male screw portion provided at the other end portion of the connection support pin in the screw acting direction. A door connecting member characterized by having a moving structure. In claim 1 or 2,
The second connection body includes a second casing fixed to the other of the attachment surface portions, and a second adjustment block attached to the second casing and connected to the connection arm.
The second adjustment block is provided with an adjustment long hole whose major axis is substantially parallel to the mounting surface portion and along the horizontal direction.
The door connecting member, wherein the second adjustment block is fixed to the second casing by a fixing stopper inserted through the adjustment long hole. In any one of Claims 1 thru | or 3,
The block-side screw portion is a female screw hole provided in the first adjustment block along the vertical direction, the vertical adjustment screw portion is a bolt member, and the bolt head of the bolt member is the adjustment operation portion and the adjustment screw. A door connecting member comprising a contact portion. In any one of Claims 1 thru | or 4,
Each of the first connecting body and the second connecting body is provided with an arm receiving recess that opens in a direction facing each other in the closed state,
The door connecting member, wherein the connecting arm is configured to be generally accommodated in the arm accommodating recess when the door is closed. In any one of Claims 1 thru | or 5,
Each of the connection arms has a first connection arm and a second connection arm each having one end rotatably attached to the first connection main body and each other end rotatably attached to the second connection main body. With a connecting arm,
When the first connection arm and the second connection arm are changed from the closed state to the open state, the first connection arm and the second connection arm A door connecting member, wherein the door connecting member is structured to move independently of each other so that a straight line connecting the rotation fulcrums of each end portion substantially intersects. A door connecting structure that uses the door connecting member according to any one of claims 1 to 6 to connect the door to an attachment target so as to be opened and closed.
The first connecting body is mounted in a recess provided in the mounting surface portion of the door, while the second connecting body is mounted in a recess provided in the mounting surface portion to be mounted. The door connection structure characterized by having.

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