JP4681421B2 - Hanging door device - Google Patents

Description

  The present invention relates to a hanging door device that can suppress tilting of a hanging door body and can keep the hanging door body in a desired horizontal state.

2. Description of the Related Art Conventionally, for example, a hanging door body that moves in the left-right direction, a horizontal roller body that is rotatably provided around a vertical axis at a lower portion of the hanging door body, and a downward door that has a downwardly recessed groove portion into which the horizontal roller body is inserted. A hanging door device provided with a guide body is known (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 4-236881

  However, in the above conventional sliding door device, there is a gap between the upper surface of the horizontal roller body and the recessed groove portion of the sliding door guide, so that when the sliding door is moved vigorously, for example, There is a risk of tilting.

  This invention is made | formed in view of such a point, It aims at providing the suspension door apparatus which can suppress that a suspension door body inclines and can keep a suspension door body in a desired horizontal state.

The suspension door apparatus according to claim 1 is a suspension door body that moves in the left-right direction, and a roller support that is provided at the lower portion of the suspension door body so as to be rotatable up and down around a horizontal axis in the front-rear direction. An arm, a roller body rotatably provided around the horizontal axis in the front-rear direction at the tip of the rotating arm, and a downwardly-facing recess into which the roller body is rotatably inserted by the rotation of the rotating arm A suspension door guide body having a groove, an urging means for urging the rotating arm upward and pressing the roller body against the recessed groove, and a lower arm of the suspension door, An arm support body that supports the pivot arm so as to be pivotable up and down, and the arm support body opens upward by an upper surface opening and opens downward by a lower surface opening to accommodate the pivot arm. A receiving part is formed and the arm support A positioning projection is provided on the lower end of the projection so as to protrude downward, and the positioning projection engages with an engagement receiving surface at a lower portion of the suspension door body. Is positioned with respect to the suspension door body .

  According to a second aspect of the present invention, there is provided the sliding door device according to the first aspect, wherein the roller body is adjustable in the front-rear position relative to the hanging door body.

  The suspension door device according to claim 3 is the suspension door device according to claim 1 or 2, further comprising a moving body provided in an upper part of the suspension door body and moving in the left-right direction together with the suspension door body, A positioning engagement receiving portion, and the suspension door body includes a positioning engagement portion that engages with the positioning engagement reception portion, and the roller body is suspended when the suspension door body is suspended. After being inserted into the concave groove portion of the guide body, the positioning engagement portion of the suspension door body is engaged with the positioning engagement receiving portion of the movable body.

According to a fourth aspect of the present invention, there is provided the sliding door device according to the first aspect, wherein the arm support is formed with a screw hole , and the hanging door has a long hole extending in the front-rear direction at a lower portion. The screw as a fixture is inserted into the long hole and screwed into the screw hole, so that the arm support body can be adjusted in the longitudinal direction along the long hole at the lower part of the suspension door body. It is what is attached.

The hanging door device according to claim 5 is the hanging door device according to claim 1, wherein the hanging door body is a substantially rectangular shape elongated in the left-right direction projecting rearward from the rear surface position of the door main body portion and the door main body portion. The arm support is attached to the upper surface of the left and right sides of the protruding plate portion so that the front and rear positions can be adjusted .

  According to the first aspect of the present invention, the roller body that rotates about the horizontal axis in the front-rear direction is fitted into the downward recessed groove portion of the sliding door guide body and is pressed against the recessed groove portion by the urging force of the urging means. Therefore, the tilting of the suspension door body can be suppressed, the suspension door body can be kept in a desired horizontal state, and the lower part of the suspension door body is provided so as to be rotatable up and down around a horizontal axis in the front-rear direction. The roller body can be properly supported by the rotating arm.

  According to the invention which concerns on Claim 2, since the roller body can adjust front-back position with respect to a suspension door body, the front-back position of a roller body can be adjusted appropriately.

  According to the invention which concerns on Claim 3, after inserting a roller body in the recessed groove part of a suspension door guide body, by engaging the positioning engagement part of a suspension door body with the positioning engagement receiving part of a moving body, suspension is carried out. Since the door can be easily positioned with respect to the moving body, the suspension work of the hanging door can be facilitated.

  An embodiment of a hanging door device of the present invention will be described with reference to the drawings.

  1 and 2, reference numeral 1 denotes a hanging door device, which is an opening / closing device that opens and closes a front opening 3 of a cabinet body 2 such as a system kitchen.

  The cabinet body 2 has a top plate portion 4, a bottom plate portion 5, left and right side plate portions 6 and a back plate portion, and a front surface opening portion 3 having a substantially rectangular shape is formed on the front surface in a longitudinal direction in the left-right direction.

  The hanging door device 1 has a left and right longitudinal upper guide rail body 11 attached to the front end portion of the top plate portion 4 of the cabinet body 2 and a left and right longitudinal direction attached to the front end portion of the bottom plate portion 5 of the cabinet body 2. Lower guide rail body (suspending door guide body) 12 and a plurality of substantially rectangular shapes that move in the left-right direction along both guide rail bodies 11, 12 to open and close the front opening 3 of the cabinet body 2, for example, 2 A front-side hanging door body 13 and a rear-side hanging door body 14 which are outset type sliding doors are provided.

  The front suspension door body 13 opens and closes the right side portion of the front opening 3 of the cabinet body 2, and the rear suspension door body 14 is located on the left side of the front opening portion 3 of the cabinet body 2. Open and close parts.

  As shown in FIGS. 2 and 3, the upper guide rail body 11 includes a substantially U-shaped rear door roller guide groove portion 21 that is open toward the front, and the rear door roller guide groove portion. The front door roller guide groove portion 22 has a substantially U-shape and a longitudinally left and right side shape that is spaced apart from 21 and opens rearward. Further, the upper guide rail body 11 has a cylindrical housing portion 23 extending in the left-right direction, and on the left side of the housing portion 23 is a rear door buffer that reduces the impact of the rear suspension door body 14 and the side plate portion 6. Means 24 is accommodated, and on the right side of the accommodation portion 23, a front door buffering means 25 for reducing the impact between the front suspension door body 13 and the side plate portion 6 is accommodated.

  As shown in FIGS. 2 and 4, the lower guide rail body 12 is formed of a downwardly extending rear door groove 31 and a front door recess that are parallel to each other in the front-rear direction and open downward in the left-right direction. A groove 32 is provided. The rear door groove 31 is positioned in front of and slightly higher than the front door groove 32. Each of the rear door groove 31 and the front door groove 32 has a horizontal surface 33 and a vertical surface 34 protruding downward from the front and rear ends of the horizontal surface 33.

  As shown in FIGS. 1 to 4, the rear suspension door body 14 includes a substantially rectangular plate-like door main body portion 41, and an upper frame portion 42 that is long in the left-right direction at the upper end portion of the door main body portion 41. Is attached to the lower end portion of the door main body 41.

  The upper frame portion 42 of the rear hanging door body 14 has a substantially rectangular and horizontal upper plate portion 45 that is elongated in the left-right direction, and a left-right longitudinal positioning member on the lower surface of the rear end portion of the upper plate portion 45. A positioning ridge 46, which is a joint, is provided so as to protrude downward.

  And on the rear surface side of the upper frame portion 42 of the rear suspension door body 14 is an L-shape which is a moving body having a substantially longitudinal L-shaped cross section that moves in the left-right direction along the upper guide rail body 11. The plate 51 is attached with a screw 52 which is a fixture.

  The L-shaped plate 51 has a vertical plate 53 that is substantially rectangular in the left-right direction, and a horizontal plate 54 that is substantially rectangular in the left-right direction from the upper end of the vertical plate 53 toward the front. It protrudes. On the rear side of the upper surface portion of the horizontal plate portion 54, a positioning groove 55 is formed as an upward positioning engagement receiving portion that opens upward, and the rear of the horizontal flat plate portion 54 is engaged by the engagement of the positioning groove 55 and the positioning protrusion 46. The side suspension door body 14 is positioned with respect to the L-shaped plate 51.

  On the left side of the L-shaped plate 51, a vertical position adjusting mechanism 56 made of a worm gear or the like is attached by a screw 57 as an attachment tool, and a roller support 61 is attached to the vertical position adjusting mechanism 56.

  The roller support 61 has a horizontal plate portion 62, a screw shaft portion 63 projects downward from a substantially center of the horizontal plate portion 62, and the screw shaft portion 63 is inserted into the vertical position adjusting mechanism 56. A vertical plate portion 64 protrudes upward from the front end portion of the horizontal plate portion 62, and a protrusion portion 65 that enters and exits the rear door buffer means 24 protrudes upward at the right end of the upper end portion of the vertical plate portion 64. It is provided in the shape.

  A plurality of, for example, two upper roller bodies 66 are attached to the vertical plate portion 64 of the roller support 61 so as to be rotatable about a horizontal axis 67 in the front-rear direction. The upper roller body 66 is a rear suspension door body. When the left and right 14 are moved, the upper guide rail body 11 moves in the left-right direction along the roller guide groove 21 for the rear door while rotating about the horizontal axis 67. Further, the upper roller body 66 can be adjusted in the vertical position with respect to the rear suspension door body 14. That is, the roller support 61 is moved up and down by rotating an operation portion 60 of the vertical position adjusting mechanism 56, for example, a cross-shaped groove (see FIG. 1) from the rear side of the rear suspension door 14 using a tool or the like. The upper and lower positions of the upper roller body 66 can be adjusted with respect to the rear suspension door body 14.

  Also, a roller support 71 is attached to the right side of the L-shaped plate 51 with a screw 72 as a fixture, and one upper roller body 76 rotates around the horizontal axis 77 in the front-rear direction. It is attached as possible. The upper roller body 76 moves in the left-right direction along the rear door roller guide groove 21 of the upper guide rail body 11 while rotating around the horizontal axis 77 when the rear suspension door body 14 moves left and right.

  On the other hand, the lower frame portion 43 of the rear suspension door body 14 has a substantially rectangular and horizontal projecting plate portion 81 that is elongated in the left-right direction and projects rearward from the rear surface position of the door main body 41, and the projecting plate. A plurality of, for example, two long holes 82 extending in the front-rear direction are formed in the left and right sides of the portion 81 in a cutout shape from the rear.

  And, on the upper surface side of the left and right sides of the projecting plate portion 81 of the lower frame portion 43 of the rear suspension door body 14, the arm support 83 can be adjusted in the longitudinal position along the long hole 82 with a screw 84 as a fixture. Is attached.

  The arm support 83 has a rectangular parallelepiped shape that is slightly elongated in the left-right direction. Screw holes 85 are formed on the left and right sides of the arm support 83, and the screw holes 85 are inserted into the long holes 82. Screw 84 is screwed. In addition, the arm support 83 is formed with an arm accommodating portion 88 that opens upward through the upper surface opening 86 and opens downward through the lower surface opening 87. A horizontal axis 90 in the front-rear direction is stretched over a plate part 89 that is spaced apart and opposed to the front and rear via the arm accommodating part 88. Further, a positioning protrusion 91 is provided on the lower end portion of the arm support 83 so as to protrude downward, and the positioning protrusion 91 is an engagement receiving surface that is an end surface of the protruding plate portion 81 of the lower frame portion 43. The arm support 83 is positioned with respect to the rear suspension door 14 by this engagement.

  Then, as shown in FIG. 5, the lower frame portion 43 of the rear suspension door body 14, that is, the left and right sides of the lower portion of the rear suspension door body 14, is a roller support body via an arm support body 83. An arm 93 is provided so as to be rotatable up and down around a horizontal axis 90 in the front-rear direction. That is, the base end portion of the pivot arm 93 is pivotally attached to the horizontal shaft 90 of the arm support 83, and the distal end side of the pivot arm 93 moves up and down. The pivot arm 93 has a shape that can be accommodated in the arm accommodating portion 88 of the arm support 83, and a lower roller body 96, which is a roller body, has a horizontal axis 97 in the front-rear direction at the tip of the pivot arm 93. The lower roller body 96 is rotatably mounted as a center, and the upper portion of the lower roller body 96 is fitted into the rear door concave groove 31.

  Further, the upper end of the lower roller body 96 is urged between the rotating arm 93 and the arm support 83 that rotatably supports the rotating arm 93 by urging the rotating arm 93 upward. A coiled spring 98 is disposed as a biasing means for pressing against the horizontal surface 33 of the rear door groove 31. The lower roller body 96 is in a state where the upper end is pressed against the horizontal surface 33 of the rear door groove 31 by the bias of the spring 98 and the front and rear surfaces are substantially in contact with the vertical surface 34 of the rear door groove 31. Thus, when the rear suspension door 14 moves left and right, it moves in the left and right direction along the rear door groove 31 of the lower guide rail body 12 while rotating around the horizontal axis 97.

  Further, the lower roller body 96 can be adjusted in the front-rear position with respect to the rear suspension door body 14. That is, by changing the mounting position of the arm support 83 with respect to the rear suspension door 14 along the long hole 82, the rotating arm 93 can be moved back and forth with respect to the rear suspension door 14, and the lower roller body 96 Can be adjusted with respect to the rear suspension door 14.

  The front side hanging door body 13 has the same basic configuration as the rear side hanging door body 14 and has a substantially rectangular plate-like door main body part 141. An upper frame portion 142 is attached, and a lower frame portion 143 having a longitudinal shape in the left-right direction is attached to a lower end portion of the door main body portion 141.

  The upper frame portion 142 of the front side hanging door body 13 has a substantially rectangular and horizontal upper plate portion 145 that is elongated in the left-right direction. A positioning protrusion 146, which is a part, is provided so as to protrude downward.

  And on the rear surface side of the upper frame portion 142 of the front side hanging door body 13 is an L-shaped plate which is a moving body having a substantially L-shaped section in the left-right direction moving in the left-right direction along the upper guide rail body 11. 151 is attached with a screw as a fixture.

  The L-shaped plate 151 has a vertical plate portion 153 that is substantially rectangular in the left-right direction, and a horizontal plate portion 154 that is substantially rectangular in the left-right direction from the upper end of the vertical plate portion 153. It protrudes. On the rear side of the upper surface portion of the horizontal plate portion 154, a positioning groove 155 that is an upward positioning engagement receiving portion that opens upward is formed, and the front side is formed by the engagement of the positioning groove 155 and the positioning protrusion 146. The suspension door 13 is positioned with respect to the L-shaped plate 151.

  On the right side of the L-shaped plate 151, a vertical position adjusting mechanism 156 made of a worm gear or the like is attached with a screw 157 as a fixture, and a roller support 161 is attached to the vertical position adjusting mechanism 156.

  The roller support 161 has a horizontal plate portion 162, the screw shaft portion 163 projects downward from the approximate center of the horizontal plate portion 162, and the screw shaft portion 163 is inserted into the vertical position adjusting mechanism 156. A vertical plate portion 164 protrudes upward from the rear end portion of the horizontal plate portion 162, and a protruding portion 165 that enters and exits the front door cushioning means 25 faces upward at the left end of the upper end portion of the vertical plate portion 164. It is provided in a protruding shape.

  A plurality of, for example, two upper roller bodies 166 are attached to the vertical plate portion 164 of the roller support body 161 so as to be rotatable about a horizontal axis 167 in the front-rear direction, and the upper roller body 166 includes the front suspension door body 13. When moving the left and right, it moves in the left and right direction along the front door roller guide groove 22 of the upper guide rail body 11 while rotating around the horizontal axis 167. Further, the upper roller body 166 can be adjusted in the vertical position with respect to the front suspension door body 13. That is, the roller support 161 is adjusted in the vertical position by rotating the operation portion 160 of the vertical position adjustment mechanism 156, for example, a cross-shaped groove (see FIG. 1) from the rear side of the front suspension door body 13 using a tool or the like. The upper and lower positions of the upper roller body 166 can be adjusted relative to the front suspension door body 13 with respect to the mechanism 156.

  Further, a roller support 171 is attached to the left side of the L-shaped plate 151 with a screw 172 as a fixture, and one upper roller body 176 rotates about the horizontal axis 177 in the front-rear direction on the roller support 171. It is attached as possible. The upper roller body 176 moves in the left-right direction along the front door roller guide groove portion 22 of the upper guide rail body 11 while rotating about the horizontal shaft 177 when the front suspension door body 13 moves left and right.

  On the other hand, the lower frame portion 143 of the front hanging door body 13 has a substantially rectangular and horizontal protruding plate portion 181 that protrudes rearward from the rear surface position of the door main body portion 141, and has a protruding plate portion 181. A plurality of, for example, two long holes extending in the front-rear direction are formed in the left and right sides of 181 in a cutout shape from the rear.

  The arm support 183 is attached to the upper surface side of the left and right sides of the protruding plate portion 181 of the lower frame portion 143 of the front suspension door body 13 so that the front / rear position can be adjusted along a long hole with a screw as a fixture. ing.

  The arm support body 183 has a rectangular parallelepiped shape that is slightly elongated in the left-right direction. Screw holes are formed on the left and right sides of the arm support body 183, and the screws inserted into the screw holes are inserted into the long holes. Are screwed together. In addition, the arm support 183 is formed with an arm accommodating portion 188 that opens upward through the upper surface opening 186 and opens downward through the lower surface opening 187. A horizontal axis 190 in the front-rear direction is stretched over a plate part 189 that is spaced apart and opposed to the front and rear via the arm accommodating part 188. Further, a positioning projection 191 is provided on the lower end portion of the arm support 183 so as to protrude downward, and this positioning projection 191 is an engagement that is an end surface of the projection plate portion 181 of the lower frame portion 143. The arm support 183 is positioned with respect to the front suspension door body 13 by engaging with the receiving surface 192.

  As shown also in FIG. 5, the lower frame portion 143 of the front suspension door body 13, that is, the left and right sides of the lower portion of the front suspension door body 13, a rotating arm 193 that is a roller support body via an arm support body 183. Is provided so as to be vertically rotatable around a horizontal axis 190 in the front-rear direction. That is, the base end portion of the rotating arm 193 is rotatably attached to the horizontal shaft 190 of the arm support 183, and the distal end side of the rotating arm 193 moves up and down. The rotating arm 193 has a shape that can be accommodated in the arm accommodating portion 188 of the arm support 183, and a lower roller body 196, which is a roller body, has a horizontal axis 197 in the front-rear direction at the tip of the rotating arm 193. The lower roller body 196 is rotatably mounted as a center, and the upper portion of the lower roller body 196 is fitted into the front door groove portion 32 of the lower guide rail body 12.

  Further, the upper end of the lower roller body 196 is urged between the rotating arm 193 and the arm support 183 that supports the rotating arm 193 so as to be rotatable. A coiled spring 198 is disposed as a biasing means for pressing against the horizontal surface 33 of the front door groove portion 32. The lower roller body 196 is in a state where the upper end portion is pressed against the horizontal surface 33 of the front door groove portion 32 by the bias of the spring 198 and the front and rear surface portions are substantially in contact with the vertical surface 34 of the front door groove portion 32. Thus, the front suspension door 13 moves in the left-right direction along the front door groove portion 32 of the lower guide rail body 12 while rotating around the horizontal axis 197 when moving in the left-right direction.

  Further, the lower roller body 196 can be adjusted in the front-rear position with respect to the front suspension door body 13. That is, by changing the mounting position of the arm support 183 with respect to the front suspension door body 13 along the long hole, the pivot arm 193 can be moved back and forth with respect to the front suspension door body 13, and the front and rear positions of the lower roller body 196 Can be adjusted with respect to the front suspension door 13.

  Next, a method for attaching the hanging door device 1 to the cabinet body 2 will be described.

  The roller supports 71 and 171 supporting the upper roller bodies 76 and 176 and the vertical position adjusting mechanisms 56 and 156 are attached to the L-shaped plates 51 and 151 in advance, and the upper roller body 66 is attached to the vertical position adjusting mechanisms 56 and 156. , 166 are attached, and the upper roller units 99, 199 are assembled.

  First, the upper guide rail body 11 is attached to the top plate portion 4 of the cabinet body 2 with screws or the like, and the lower guide rail body 12 is attached to the bottom plate portion 5 of the cabinet body 2 with screws or the like.

  Next, the front door buffering means 25 and the rear door buffering means 24 are inserted into the receiving portion 23 of the upper guide rail body 11 and fixed in place, and the upper guide rail body 11 Insert the upper roller bodies 66, 76, 166, 176 of the roller units 99, 199.

  Thereafter, the lower roller body 96 supported by the rotating arm 93 attached to the lower portion of the rear suspension door body 14 is fitted into the recessed groove portion 31 for the rear door of the lower guide rail body 12.

  Subsequently, with the lower roller body 96 fitted in the recessed groove portion 31 for the rear door of the lower guide rail body 12, the rear suspension door 14 is raised, and the positioning protrusion of the upper portion of the rear suspension door 14 is raised. The strip 46 is engaged with the positioning groove 55 of the L-shaped plate 51 of the upper roller unit 99, and the rear suspension door body 14 is positioned with respect to the L-shaped plate 51. Thereafter, the rear suspension door 14 is attached to the L-shaped plate 51 from the rear side of the rear suspension door 14 with screws 52. In this way, the suspension work of the rear suspension door body 14 is completed, and then the suspension work of the front suspension door body 13 is similarly performed.

  And according to the hanging door apparatus 1 attached to the cabinet main body 2 in this way, the lower roller bodies 96, 196 fitted into the downward concave grooves 31, 32 of the lower guide rail body 12 are formed by the springs 98, 198. With the upper end pressed against the horizontal surface 33 of the recessed groove portions 31 and 32 by the urging and the front and rear surface portions thereof substantially in contact with the vertical surface 34 of the recessed groove portions 31 and 32, the horizontal axis 197 in the front and rear direction is the center. Since it moves in the left-right direction along the recessed groove portions 31 and 32 of the lower guide rail body 12 while rotating, not only can the swinging of the suspension door bodies 13 and 14 be prevented, but also the suspension door bodies 13 and 14 can be suddenly moved. It is possible to suppress the tilting of the suspension door bodies 13 and 14 due to the vertical movement on the side end side during the left-right movement, and the suspension door bodies 13 and 14 can be maintained in a desired horizontal state.

  Further, after the lower roller bodies 96 and 196 are fitted into the recessed groove portions 31 and 32 of the lower guide rail body 12, the suspension door bodies 13 and 14 are raised, and the positioning protrusions 46 on the upper portions of the suspension door bodies 13 and 14 are raised. , 146 are engaged with the positioning grooves 55, 155 of the L-shaped plates 51, 151, so that the hanging door bodies 13, 14 can be easily positioned with respect to the L-shaped plates 51, 151. It is possible to facilitate the suspension work of 13 and 14.

  Further, since the upper roller bodies 66 and 166 can be adjusted in the vertical position with respect to the suspension door bodies 13 and 14, and the lower roller bodies 96 and 196 can be adjusted in the front-rear position with respect to the suspension door bodies 13 and 14, By adjusting the vertical positions of the roller bodies 66 and 166 and the front and rear positions of the lower roller bodies 96 and 196, it is possible to absorb dimensional errors and assembly errors of parts, and the left and right sliding door bodies 13 and 14 can be smoothly moved left and right. Can be obtained.

  Moreover, the vertical dimension of the lower roller bodies 96 and 196 can be reduced as compared with the conventional apparatus, and the front opening 3 of the cabinet body 2 can be made larger.

  For example, although not shown, in addition to the upper roller bodies 66 and 166, the upper roller bodies 76 and 176 may be vertically adjustable with respect to the suspension door bodies 13 and 14.

It is a front view which shows one Embodiment of the sliding door apparatus of this invention. It is a side view of a suspension door apparatus same as the above. It is a disassembled perspective view of the upper end side of a suspension door apparatus same as the above. It is a disassembled perspective view of the lower end side of a suspension door apparatus same as the above. It is a side view of the lower roller body part of the same hanging door apparatus.

1 Hanging door device
12 Lower guide rail body that is a sliding door guide body
13 Front hanging door that is a hanging door
14 Rear suspension door body
31 Groove for rear door, which is a groove
32 is a concave groove front door concave groove portion
41, 141 main unit
46,146 Positioning ridge that is a positioning engagement part
51,151 L-shaped plate as moving body
55,155 Positioning groove for positioning engagement
81,181 Projecting plate
82 Slotted hole
83, 183 Arm support
84 Screws as fixtures
85 Screw hole
86, 186 top opening
87, 187 bottom opening
88,188 arm housing
90, 190 horizontal axis
91,191 positioning protrusion
92, 192 engagement receiving surface
93,193 Rotating arm as roller support
96,196 Lower roller body which is a roller body
97, 197 horizontal axis
98,198 Spring as a biasing means

Claims (5)

A hanging door that moves in the left-right direction;
A rotating arm that is a roller support provided at the lower part of the hanging door body so as to be vertically rotatable around a horizontal axis in the front-rear direction;
A roller body provided at the tip of the rotating arm so as to be rotatable about a horizontal axis in the front-rear direction;
A sliding door guide body having a downwardly recessed groove portion into which the roller body is rotatably fitted by the rotation of the rotating arm,
Urging means for urging the rotating arm upward and pressing the roller body against the concave groove portion ;
An arm support that is attached to a lower portion of the suspension door and supports the pivot arm so as to be pivotable up and down ;
The arm support is formed with an arm accommodating portion that opens upward by an upper surface opening and opens downward by a lower surface opening and can accommodate the rotating arm,
A positioning protrusion is provided on the lower end of the arm support so as to protrude downward,
The said positioning protrusion engages with the engaging receiving surface of the lower part of the said suspension door body, The said arm support body is positioned with respect to the said suspension door body by this engagement, The suspension door apparatus characterized by the above-mentioned . The sliding door device according to claim 1, wherein the roller body is adjustable in the front-rear position with respect to the hanging door body. Provided on the upper part of the hanging door body with a moving body that moves in the left and right direction with this hanging door body,
The moving body has a positioning engagement receiving portion,
The hanging door body has a positioning engagement portion that engages with the positioning engagement receiving portion,
When the suspension door is suspended, the roller body is fitted into the recessed groove portion of the suspension door guide body, and then the positioning engagement portion of the suspension door body is engaged with the positioning engagement receiving portion of the movable body. The suspension door device according to claim 1 or 2, characterized by being combined. A screw hole is formed in the arm support ,
The hanging door body has a long hole extending in the front-rear direction at the bottom,
A screw, which is a fixture, is inserted into the long hole and screwed into the screw hole, so that the arm support body is attached to the lower part of the suspension door body so that the longitudinal position can be adjusted along the long hole. The hanging door device according to claim 1, wherein: The hanging door body has a door main body portion, a substantially rectangular and horizontal protruding plate portion elongated in the left-right direction protruding rearward from the rear surface position of the door main body portion,
The suspension door device according to claim 1 , wherein the arm support body is attached to the upper surface side of the left and right sides of the protruding plate portion so that the front and rear positions can be adjusted .

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