JP5793462B2 - Door opening / closing structure - Google Patents

Description

  The present invention relates to a door opening / closing structure, and more particularly to a door opening / closing structure that is attached to a building, furniture, a figurine, and the like and that opens and closes freely.

  As a door opening / closing structure, for example, a door opening / closing structure disclosed in Patent Document 1 is known. In this door opening / closing structure, in a shaft member fixed on the door side facing each other and a shaft member fixed on a door mounting target body, one of the two shaft members is a magnet and the other is attracted to a magnetic body or a magnet. This is a door opening / closing structure in which the end surfaces of two shaft members are brought into contact with each other so that the door can be easily detached from the object to be attached by the magnet's attractive force.

Japanese Patent No. 4846046

  In the case of the door opening and closing structure described in Patent Document 1, the two shaft members are excellent in that they are brought into contact with each other by the magnet's attractive force and can be detached from the object to which the door is attached. Therefore, in some cases, they rub against each other, and there is a possibility that the surface of the magnet or the surface of the magnetic body may be scraped or damaged.

  Moreover, although the door opening / closing structure of patent document 1 makes the removal of a door easy, when opening / closing a door, it may be difficult to remove a door from the attachment object of a door. In this case, as a known structure, shaft members 102a and 102b provided on the upper end surface 101a and the lower end surface 101b of the door 101 as shown in the schematic explanatory diagram of the door opening / closing structure of the box-shaped furniture F in FIG. The door 101 is inserted into the insertion recesses (the top plate insertion recess 105a and the base plate insertion recess 105b) formed in the top plate 103 and the base plate 104, respectively, to which the door 101 is attached. Some of them are attached to the base plate 104.

  However, with such a configuration, when the door 101 is removed, the shaft member 102b provided on the lower end surface 101b of the door 101 is the same length L4 as the depth L1 that fits into the ground plate insertion recess 105b of the ground plate 104, By shifting the door 101 upward to the state indicated by the two-dot chain line in FIG. 7, the shaft member 102 b is shifted upward with respect to the main plate 104, and the tip of the shaft member 102 b is more than the upper end surface 104 a of the main plate 104. It must be removed after it has been turned up. Therefore, a gap CL1 having a vertical dimension L3 equal to or greater than L4 must be ensured between the upper end surface 101a of the door 101 and the lower end surface 103a of the top plate 103. Further, the shaft member 102a must be able to move upward in a state where the shaft member 102a of the upper end surface 101a of the door 101 is inserted into the top plate insertion recess 105a. Therefore, the insertion recess having a vertical dimension L2 that is equal to or longer than the length (L1, L4) for shifting the door 101 upward between the bottom surface 115 of the top plate insertion recess 105a and the tip of the shaft member 102a. The clearance CL2 on the side must be ensured. Therefore, in the conventional structure, there is a problem that a large gap is opened between the door top plate 103 and the upper end surface 101a of the door, or the door top plate 103 must be thickened.

  On the other hand, if the length of the shaft members 102a and 102b is shortened, the gap CL1 and the gap CL2 on the insertion recess side can be reduced, but the shaft members 102a and 102b are fitted into the top plate insertion recess 105a and the ground plane insertion recess 105b. Since the size to be inserted is also reduced, the shaft members 102a and 102b are likely to be detached from the top plate insertion recess 105a and the ground plane insertion recess 105b.

  The present invention has been made in view of the above circumstances. When a magnet or a magnetic material is used to stably stop a door rotating around an axis by a magnetic force, or to generate a magnetic force, the magnets A door opening / closing structure that prevents friction between the magnet and the magnetic body and prevents the surface of the magnet or magnetic body from being scraped or damaged by friction, and makes it difficult for the door to come off due to magnetic force. The purpose is to provide. It is another object of the present invention to provide a door opening / closing structure capable of making it difficult to remove the door even if the length of the shaft member fitted into the attachment target body of the door is shortened.

  The door opening and closing structure of the present invention is a door opening and closing structure that opens and closes a door by a shaft member and a bearing member having a recess into which the shaft member is rotatably inserted, and the bearing member has an opening edge of the recess. The shaft member is in contact with the bearing member side collar, and slides and rotates with respect to the bearing member side collar as the door is opened and closed. And the tip of the convex portion of the shaft member inserted into the concave portion and the bottom surface of the concave portion of the bearing member are attracted to each other by magnetic force in a non-contact state.

  In the door opening / closing structure of the present invention, when the shaft member is provided with a magnet or a magnetic body, and when the shaft member is provided with a magnet, the bearing member is provided with a magnet or magnetic body that attracts the shaft member. Is preferably provided.

  In the door opening and closing structure of the present invention, the shaft member is provided with a magnet or a magnetic body, and when the shaft member is provided with a magnetic body, the bearing member is provided with a magnet that attracts the magnetic body. It is preferable to be made.

  In the door opening and closing structure of the present invention, it is preferable that the shaft member is provided on a lower end surface of the door and the bearing member is provided on a door attachment target body.

  In the door opening / closing structure of the present invention, the shaft member includes a shaft member-side housing embedded in a mounting hole formed in the lower end surface of the door, and the shaft member-side housing projects from the tip of the shaft member. As described above, the shaft member-side housing recess for housing the magnet or the magnetic body and the shaft member-side flange are embedded, and the bearing member is embedded in a mounting hole formed in a mounting target body of the door and the bearing It is preferable that a bearing member side housing for protecting the member from the outside is provided, and the bearing member side housing includes a bearing member side housing recess for housing the magnet or magnetic body of the bearing member and the bearing member side flange. .

  In the door opening / closing structure of the present invention, it is preferable that an interposition member for adjusting a sliding condition is disposed between the shaft member side flange and the bearing member side flange.

  As described above, the door opening / closing structure of the present invention attracts the tip of the convex portion of the shaft member inserted into the concave portion of the bearing member and the bottom surface of the concave portion of the bearing member by a magnetic force in a non-contact state. For example, the door can be stably stopped at a predetermined position such as when the door is closed. In addition, the shaft member side flange and the bearing member side flange are in a non-contact state between the tip of the shaft member inserted into the recess and the bottom surface of the recess of the bearing member. No friction is generated between the magnet surface and the surface of the magnet or the magnetic material surface. Further, it is possible to prevent the shaft portion from being damaged due to scraps or the like.

  In addition, since the shaft member of the door and the concave portion of the bearing member are attracted by the magnetic force, the door is difficult to come off even if the magnet or the protruding portion of the magnetic material that fits into the concave portion is shallow. be able to. In addition, it is possible to reduce the depth at which the shaft member fits into the recess of the bearing member while making it difficult to remove the door, so the clearance between the door and the mounting target body side on the door upper side necessary when removing the door can be reduced. Can be narrowed.

1 is a schematic perspective view of furniture according to a first embodiment of the present invention. It is the schematic which shows the shaft member side of the door opening / closing structure with which the furniture of FIG. 1 is equipped, The left side in the figure of a door and a shaft member is shown as sectional drawing, and the right side in the figure of a shaft member is shown as a front view. It is the schematic of the bearing member side of the door opening / closing structure with which the furniture of FIG. 1 is equipped, The left side in the figure of a bottom plate and a bearing member is shown as sectional drawing, and the right side in the figure of a bearing member is shown as a front view. It is the schematic of the door opening / closing structure with which the furniture of FIG. 1 is provided, The left side in the figure of a door, a baseplate, a shaft member, and a bearing member is shown as sectional drawing, and the right side in the figure of a shaft member and a bearing member is shown as front view. It is a schematic perspective view which shows the furniture concerning the 2nd Embodiment of this invention. It is the schematic of the door opening-and-closing structure with which the furniture of FIG. 5 is provided, A shaft member side housing and a bearing member side housing are shown as a front view, and another member is shown as sectional drawing. It is the schematic explaining the assembly method of the door opening and closing structure concerning the 3rd Embodiment of this invention, The left side in the figure of a door, a baseplate, a shaft member, and a bearing member is shown as sectional drawing, The figure of a shaft member and a bearing member The middle right is shown as a front view. It is the schematic which shows the door opening and closing structure concerning the 3rd Embodiment of this invention, the left side in the figure of a door, a baseplate, a shaft member, and a bearing member is shown as sectional drawing, and the right side in the figure of a shaft member and a bearing member is a front Shown as a diagram. It is the schematic explaining the operation | movement which removes a door in the conventional door opening / closing structure.

  Embodiments of the present invention will be described below with reference to FIGS.

  The furniture concerning 1st Embodiment provided with the door opening and closing structure of this invention in FIG. 1 is shown. In the following embodiments, furniture will be described as an example. However, as long as the door opening / closing structure of the present invention is provided, the object to be attached is not limited to furniture, and may be a box, a building, or an electronic device. The present invention can be applied to any door mounting target body having a door such as a device. As shown in FIG. 1, the furniture F1 is a box-shaped wooden structure having a top plate 3 and a base plate 4, covered on three sides by a back plate 5 and two side plates 6, and having an open front surface. A pair of left and right doors 1a and 1b that open and close the opening in a double door manner are attached to the opened front surface.

  The doors 1a and 1b are formed in a substantially vertically long rectangular plate-like body made of wood, and one end is attached to the top plate 3 and the main plate 4 of the furniture F1 through the door opening / closing structures S1 and S2, as indicated by a dotted line in the figure. It is pivotally attached. The furniture F1 is not limited to wood, but may be a non-magnetic material such as synthetic resin or aluminum, but the material of the furniture F1 is not particularly limited as long as it does not depart from the object of the present invention. Hereinafter, regarding the door opening / closing structure, the door opening / closing structure provided between the doors 1a, 1b and the main plate 4 is referred to as S1, and the door opening / closing structure provided between the doors 1a, 1b and the top plate 3 is referred to as S2, and the door 1a. The door opening / closing structure S1 provided between the base plate 4 and the base plate 4 will be described in detail with reference to FIGS.

  The door opening / closing structure S1 includes a shaft member 11 shown in FIG. 2 provided on the door 1a and a concave portion 27 (see FIG. 3) into which the shaft member 11 is rotatably inserted. The door 1a is opened and closed by the bearing member 21 shown in FIG. 3, and the convex part (FIG. 2) of the shaft member 11 shown in FIG. The door 1a is attached by inserting the tip of a magnet (indicated by reference numeral 16). 2 to 4, the left side of the door 1 a, the bottom plate 4, the shaft member 11 and the bearing member 21 is shown as a sectional view, and the right side of the shaft member 11 and the bearing member 21 is shown as a front view. .

  As shown in FIG. 2, the shaft member 11 is formed with a concave mounting hole 31 that opens to the lower end surface 12 side of the door 1 a. The shaft member 11 is embedded directly or indirectly in the mounting hole 31. In the present embodiment, the shaft member 11 is embedded in the mounting hole 31 via the shaft member side housing 13 described later, but the shaft member 11 may be embedded directly in the mounting hole 31. As this embedding means, known techniques such as fitting, pins, screws, and adhesives can be employed. The shaft member 11 is not limited to the shaft member 11 embedded in the mounting hole 31 of the lower end surface 12 of the door 1a as in the present embodiment, and is particularly limited as long as it protrudes downward from the lower end surface 12 of the door 1a. Is not to be done. For example, the shaft member 11 may be a member that protrudes integrally or separately from the door 1a on the lower end surface 12 of the door 1a in which the mounting hole 31 is not provided.

  In the present embodiment, the shaft member 11 includes a shaft member-side housing 13 that is embedded in a mounting hole 31 formed in the lower end surface 12 of the door 1a and protects the shaft member 11 from the outside. The shaft member-side housing 13 includes a shaft member-side housing recess 14 that houses a magnet or a magnetic body (a projecting portion of the shaft member 11) such that the tip of the shaft member 11 protrudes from the lower end surface 12 of the door 1a, and the door 1a. On the lower end surface 12, the shaft member side flange 15 is engaged with the peripheral edge of the mounting hole 31 and abuts against a bearing member side flange 25 described later, as shown in FIG. 4. The shaft member side flange 15 slides and rotates with respect to the bearing member side flange 25 with the opening and closing of the door 1a. As shown in FIG. 2, a magnet or a magnetic body is fitted into the shaft member side accommodation recess 14 (magnet 16 in this embodiment).

  As shown in FIG. 2, the shaft member-side housing 13 is a bottomed, substantially cylindrical member having a shaft member-side flange 15 on the outer peripheral edge of the opening from which the magnet 16 protrudes. The term “bottomed” as used herein is sufficient if it has a bottom at least partially, and includes those having holes or notches. The shaft member-side accommodation recess 14 is formed to have substantially the same diameter as or slightly larger than the magnet 16 to be inserted. The outer peripheral side surface of the shaft member side housing 13 has a plurality of step portions 13a in the axial direction (vertical direction in FIG. 2) of the shaft member side housing 13 as shown in FIG. Each of the step portions 13a is formed in a tapered shape so as to reduce in diameter toward the distal end side (the upper end portion in FIG. 2) of the shaft member side housing 13. When the shaft member side housing 13 is inserted by providing the stepped portion 13a, the stepped portion 13a abuts against the inner wall of the mounting hole 31 by pushing the shaft member side housing 13 into the mounting hole 31, and slightly Since it is deformed, it is easy to insert. On the contrary, after the shaft member side housing 13 is attached, the stepped portion 13a is turned back to make it difficult for the shaft member side housing 13 to come off.

  The shaft member side flange 15 is a portion protruding from the outer peripheral edge of the opening of the shaft member side housing 13 to the outside in the substantially vertical direction with respect to the axial direction of the shaft member side housing 13. The shaft member side flange 15 may be annular or may be formed in a rectangular frame shape. In FIG. 2, the shaft member side flange 15 is shown integrally extending from the shaft member side housing 13, but the shaft member side flange 15 needs to be integrated with the shaft member side housing 13. It may be a separate body. For example, an annular shaft member side flange 15 such as a washer may be provided as a separate member from the shaft member side housing 13 at the opening edge of the attachment hole 31 in the lower end surface 12 of the door 1a. In the present embodiment, the shaft member 11 has a shaft member-side housing 13, but as will be described later, the tip of the convex portion (magnet 16) of the shaft member 11 and the shaft member 11. If the bottom surface 26a (see FIG. 3) of the concave portion 27 of the bearing member 21 into which the tip of the convex portion (magnet 16) is inserted can be held in a non-contact state and attracted to each other by magnetic force, the shaft member The side housing 13 is not always necessary.

  Next, the bearing member 21 will be described with reference to FIG. The bearing member 21 is embedded in a concave mounting hole 41 that opens at the upper end surface 22 of the main plate 4 that is an attachment target body of the door 1a. As the burying means, similar to the shaft member 11, known techniques such as fitting, pins, screws, adhesives, and the like can be adopted.

  In the present embodiment, the bearing member 21 includes a bearing member-side housing 23 that is embedded in a mounting hole 41 formed on the surface of the main plate 4 and protects the bearing member 21 from the outside. The bearing member-side housing 23 is opened on the upper end surface 22 side of the main plate 4 and is provided by being fitted into the bearing member-side receiving recess 24 and the bearing member-side receiving recess 24 for receiving a magnet or a magnetic body. The magnet 16 is arranged so that different polarities face each other so as to attract each other, or a magnetic body attracted by the magnet 16 (in this embodiment, the magnet 26). The bearing member 21 is provided with a recess 27 for inserting the tip of the shaft member 11 after the magnet 26 is mounted in the bearing member-side receiving recess 24. Therefore, the upper end surface 26 a of the magnet 26 does not protrude from the upper end surface of the bearing member 21 (here, the upper end surface 23 b of the bearing member side housing 23), and is between the upper end surface 26 a of the magnet and the upper end surface of the bearing member 21. A magnet 26 is provided so that a space is formed in the space. After the magnet is attached to the bearing member side housing 23, a recess 27 is formed by the inner wall of the bearing member side housing 23 and the upper end surface 26 a of the magnet 26, and the upper end surface 26 a of the magnet 26 corresponds to the recess 27 of the bearing member 21. The bottom surface is formed (hereinafter, the upper end surface 26a of the magnet 26 is referred to as "the bottom surface 26a of the recess 27"). At the opening edge of the recess 27, there is a bearing member side flange 25 that protrudes from the bearing member side housing 23 outward in a substantially vertical direction with respect to the axial direction of the bearing member side housing 23. The bearing member side flange 25 engages with the opening edge of the mounting hole 41 of the base plate 4 and comes into contact with the shaft member side flange 15 as shown in FIG. It slides and rotates with respect to the part 15. In addition, when the magnet 16 accommodated in the shaft member side accommodation recessed part 14 of the shaft member 11 is replaced with a magnetic body, it is necessary to accommodate the magnet in the bearing member side accommodation recessed part 24 of the bearing member 21.

  As shown in FIG. 3, the bearing member-side housing 23 is a bottomed, substantially cylindrical member having a bearing member-side flange 25 on the outer peripheral edge of the opening that opens upward. The bearing member-side accommodation recess 24 is formed to have substantially the same diameter as or slightly larger than the magnet 26 to be inserted. The outer peripheral side surface of the bearing member side housing 23 has a plurality of step portions 23a in the axial direction (vertical direction in FIG. 3) of the bearing member side housing 23, similarly to the shaft member side housing 13 shown in FIG. . The plurality of stepped portions 23a makes it easy to mount the bearing member side housing 23 and makes it difficult for the bearing member side housing 23 to come off.

  The bearing member side flange 25 only needs to have the same shape as the shaft member side flange 15, but may have a different shape and size. In FIG. 3, the bearing member side flange 25 is shown integrally extending from the bearing member side housing 23, but the bearing member side flange 25 needs to be integrated with the bearing member side housing 23. It may be a separate body. In the present embodiment, the bearing member 21 has a bearing member-side housing 23, but the tip of the shaft member 11 and the bottom surface 26a of the recess 27 of the bearing member 21 into which the shaft member 11 is inserted. (Refer to FIG. 3) can be held in a non-contact state and can be attracted to each other by magnetic force, the bearing member side housing 23 is not necessarily required. Here, in the present embodiment, the “concave portion” is configured by the inner wall of the bearing member side housing 23 and the upper end surface 26a of the magnet 26, but is not particularly limited as long as the shaft member 11 can be rotatably accommodated. For example, without using the bearing member side housing 23, the space after the magnet or the magnetic material is directly placed in the mounting hole 41 of the base plate 4 may be used as the recess 27.

  With the above configuration, the door opening / closing structure S1 of the present embodiment brings the shaft member side flange 15 and the bearing member side flange 25 into contact with each other as shown in FIG. The shaft member side flange 15 is configured to slide and rotate with respect to the bearing member side flange 25. 2 and 3, the length H1 at which the tip of the shaft member 11 (the tip of the magnet 16 in FIG. 2) protrudes from the end face of the shaft member side flange 15 is the depth of the recess 27. It is shorter than H2 (in FIG. 2, the length from the end surface 25a of the bearing member side flange 25 to the bottom surface 26a of the recess 27 of the bearing member 21). Therefore, as shown in FIG. 4, a space P is formed between the tip of the magnet 16 (projection) of the shaft member 11 and the bottom surface 26a of the recess 27 of the bearing member 21, and the tip surface 16a (shaft of the shaft member 11) The tip surface of the magnet 16 of the member 11 and the bottom surface 26a of the recess 27 of the bearing member 21 (the upper end surface of the magnet 26 of the bearing member 21) are in a state of being attracted to each other by magnetic force in a non-contact state. .

  In this way, the tip of the shaft member 11 inserted into the recess 27 of the bearing member 21 and the bottom surface 26a of the recess 27 of the bearing member 21 are in a state of being attracted to each other by magnetic force in a non-contact state by the space P. Therefore, as shown in FIG. 4, the tip surface of the magnet 16 of the shaft member 11 (tip surface 16 a of the magnet 16 of the shaft member 11) and the upper end surface of the magnet 26 of the bearing member (bottom surface 26 a of the recess 27) There is no scraping due to friction. Further, it is possible to prevent a failure of the shaft portion (door opening / closing structure S1) due to the scraped scraps of the magnets 16 and 26. The space H3 of the space P is not particularly limited as long as the magnetic forces of the magnets 16 and 26 reach each other. However, the space H3 should be shorter to increase the attractive force by the magnetic force, and should be greater than 0 and 1.0 mm or less. Is preferred.

  Further, the magnet 16 of the shaft member 11 is attracted by the magnet 26 provided in the bearing member-side accommodation recess 24 of the bearing member 21 while being inserted into the recess 27 (see FIG. 3) of the bearing member 21. Therefore, compared with the case where a simple shaft member and a bearing member that do not use magnets are used, the force for holding the positions of the rotating doors 1a and 1b on the spot increases due to the attractive force between the magnets. Therefore, when the furniture F1 or the like is provided in a tilted place or the like, in the case of a door opening / closing structure using a simple shaft member and a bearing member that does not use a magnet, the door may move in a tilted direction. According to the present invention, the doors 1a and 1b can be stably stopped while the doors 1a and 1b are closed.

  Moreover, the magnet 16 provided in the shaft member side accommodation recessed part 14 (refer FIG. 2) of the shaft member 11 and the magnet 26 provided in the recessed part 27 (refer FIG. 3) of the bearing member side accommodation recessed part 24 of the bearing member 21 are included. Due to the configuration in which the magnetic force generated between them and the tip of the magnet 16 of the shaft member 11 (the tip of the convex portion of the shaft member 11) are inserted into the concave portion 27 of the bearing member 21, the lateral force applied to the shaft member 11 is Since the member 11 is inserted into the recess 27, the door 1a can be prevented from coming off, and the force applied to the door 1a in the vertical direction is a magnetic force acting between the shaft member 11 and the bearing member 21. It is possible to prevent the door 1a from being detached due to the adsorption force due to.

  Further, the shaft member 11 is difficult to come off due to the magnetic force generated between the magnet 16 provided in the shaft member side accommodation recess 14 of the shaft member 11 and the magnet 26 provided in the bearing member side accommodation recess 24 of the bearing member 21. The depth at which the shaft member 11 fits into the recess 27 of the bearing member 21 (see H1 in FIGS. 2 and 4) is made shallower than the conventional door opening / closing structure (see FIG. 7) that does not use a magnet. Can do. Therefore, the vertical dimension of the gap between the door 1a and the top plate 3 (see FIG. 1), which is necessary for removing the door 1a, is the dimension required for a conventional door opening / closing structure that does not use a magnet. It can be made narrower than (the gap of the vertical dimension L3 in FIG. 7). Therefore, an unnecessary gap that impairs the aesthetic appearance is not opened between the door 1a and the top plate 3, and the appearance of furniture or the like can be improved.

  In addition, since the structure of the door 1b is the same as the structure of the door 1a, detailed description is abbreviate | omitted.

  Next, with reference to FIG. 5 and FIG. 6, which is a sectional view taken along the line XX of FIG. 5, furniture according to the second embodiment having the door opening and closing structure of the present invention will be shown. Since this embodiment is the same as the first embodiment shown in FIGS. 1 to 4 except for the method of attaching the doors 1a and 1b, the same parts as the first embodiment shown in FIG. Functions and forms are denoted by the same reference numerals and description thereof is omitted. Hereinafter, only points different from the first embodiment in FIG. 1 will be described.

  As shown in FIGS. 5 and 6, the furniture F <b> 2 according to the second embodiment has a notch recess 50 at the center in the vertical direction of the opening-side end surface 6 a of the side plate 6 of the furniture F <b> 2. Further, a mounting convex portion 62 formed on the fixed end surface 61 of the door 1a is inserted. Further, as shown in FIG. 6, a pin member 132 protruding upward from the upper end surface 62a is provided on the upper end surface 62a of the mounting convex portion 62 of the door 1a separately from the mounting convex portion 62. One end of the member 132 is embedded in the upper end surface 62a of the mounting convex portion 62 (the pin member 132 and the mounting convex portion 62 may be integrated). An attachment hole 131 is formed in the lower end surface 62b of the attachment convex portion 62, and the shaft member 11 shown in FIG. Further, mounting holes 141a and 141b are formed in the upper wall surface 50a and the lower wall surface 50b of the notch recess 50 of the side plate 6 of the furniture F2, and a bottomed cylindrical housing 33 is fitted in the mounting hole 141a. . The other end of the pin member 132 is fitted inside the housing 33. A bearing member 21 shown in FIG. 3 is provided in the mounting hole 141b. That is, the door opening / closing structure S1 as shown in FIGS. 1 and 2 is formed between the lower end surface 62b of the mounting projection 62 of the door 1a and the lower wall surface 50b of the notch recess 50 of the side plate 6. In addition, the relationship of the vertical dimension of the notch recessed part 50 and the attachment convex part 62 will not be specifically limited if the door 1a can be attached and removed.

  Even in such a configuration, the door opening and closing structures S1 and S2 exhibit the same operations and effects as in the case of the first embodiment shown in FIG.

  The door opening / closing structure according to the first embodiment shown in FIG. 1 and the second embodiment shown in FIG. 5 can be substituted by the door opening / closing structure according to the third embodiment shown in FIGS. It is. In the present embodiment, as shown in FIG. 7, an annular interposed member R is arranged between the shaft member side flange 15 and the bearing member side flange 25 in order to adjust the smoothness of opening and closing the door. Has been established. The height H4 of the intervention member R is configured to be shorter than the length H1 of the magnet 16 protruding from the shaft member side housing 13 of the shaft member 11. A through hole is formed in the center of the annular interposed member R so that the tip of the shaft member 11 can be inserted.

  Next, a method for disposing the intervention member R will be described. As shown in FIG. 7, first, the tip end of the magnet 16 projected from the shaft member side housing 13 is inserted from one end side of the interposed member R. Here, since the height H4 of the interposed member R is made shorter than the length H1 of the magnet 16 projecting from the shaft member side housing 13 of the shaft member 11, the magnet 16 from the other end side of the interposed member R is made. The tip can be projected. By fitting this protruding portion into the recess 27 of the bearing member 11, the disposition of the interposition member R between the shaft member side flange 15 and the bearing member side flange 25 can be completed. FIG. 8 shows a state in which the interposition member R is disposed between the shaft member side flange 15 and the bearing member side flange 25.

  In the present embodiment, the sliding state between the shaft member side flange 15 and the bearing member side flange 25 can be adjusted by the interposed member R. For example, the shaft member side flange 15 and the bearing member side flange 25 are prevented from excessively sliding (sliding), and the door 1a (see FIGS. 1 and 5) is held in an arbitrary open position. In order to facilitate this, the shaft member side housing 13 including the shaft member side flange 15 and the bearing member side housing 23 including the bearing member side flange 25 are formed of nylon, for example, nylon 6 or nylon 6,6. This is possible by molding the interposed member R with an elastic material such as an elastomer. On the other hand, when it is desired to make the sliding between the shaft member side flange 15 and the bearing member side flange 25 smooth, the interposed member R faces the shaft member side flange 15 and the bearing member side flange 25. On the surface, a material for improving sliding, for example, a plating such as nickel, a coating film made of a synthetic resin such as Teflon (registered trademark), a sheet member made of a hard synthetic resin such as Duracon (registered trademark) or rubber, This is possible by providing a wooden plate, a paper coated with a synthetic resin, lubricating oil, and the like. In the first embodiment shown in FIGS. 1 to 4 and the second embodiment shown in FIGS. 5 to 6, the material for adjusting the sliding condition as described above is used for the shaft member side flange 15. You may provide in the surface contact | abutted with the bearing member side collar part 25, or the surface contact | abutted with the shaft member side collar part 15 of the bearing member side collar part 25. FIG. In this case, the thickness of the material for adjusting the sliding condition may be as long as the suction force of the shaft member and the bearing member is not significantly reduced, and is preferably as thin as possible and is preferably 2 mm or less. Further, the sheet member, the wooden plate, and the coated paper can be fixed to the shaft member or the bearing member with an adhesive.

  Although the embodiment of the present invention has been described so far, the embodiment described here is merely an example, and various modifications can be made without departing from the scope of the claims.

  The method of fitting the magnet 16 or the magnet 26 into the shaft member side accommodation recess 14 or the bearing member side accommodation recess 24 is not particularly limited, and well-known fixing means such as an adhesive can be employed. It is possible to insert the adhesive into the recess 14 or the bearing member side accommodation recess 24 and press fit the magnet 16 or the magnet 26 into the shaft member side accommodation recess 14 or the bearing member side accommodation recess 24. The magnet 16 or the magnet 26 is not particularly limited, such as a ferrite magnet, a neodymium-based, or a samarium-based rare-earth magnet. Is preferably used.

  Further, the place where the door opening / closing structure according to the present invention is provided is not limited to the embodiment described here, and can be provided at various attachment portions of the door and the object to which the door is attached. The number of such door opening / closing structures is not particularly limited.

  Further, in the embodiment mentioned here, as a method of attracting the door to the object to be attached to the door, a member made of only a magnet or a magnetic material is used, but a member including a magnet or a magnetic material is used. Also good. An example of such a member is a molded product made of a synthetic resin in which magnets and magnetic materials are mixed in the form of particles.

  Moreover, in embodiment mentioned here, although what used the magnet for both the shaft member side and the bearing member side was shown, when one is made into a magnet, the other is made into a magnetic body, and the said embodiment and Similar effects can be obtained. As the magnetic material, iron, cobalt, nickel, and other ferromagnetic materials such as martensitic stainless steel can be used. Further, the shaft member and the bearing member are not limited to those containing only a magnet or only a magnetic body, and the shaft member and / or the bearing member itself may be a member including a magnet or a magnetic body. An example of such a member is a molded product made of a synthetic resin in which magnets and magnetic materials are mixed in the form of particles.

  Moreover, in embodiment mentioned here, although applying the door opening / closing structure of this invention to the fixing | fixed part of the board (top plate, a side board, a ground plate) of the furniture fixed to the door is illustrated, There is no limitation, and the door opening and closing structure of the present invention can also be applied to an attachment portion between doors.

  Moreover, in embodiment mentioned here, although the door illustrated the furniture of 2 sheets, the number of doors is not limited to 2 sheets, 3 or more or 1 sheet may be sufficient, The material is not limited to wood, but may be any material made of a non-magnetic material. For example, synthetic resin or aluminum can be employed. Further, the opening and closing of the door is not limited to the double door opening, but includes a partial opening and closing and a half open state.

  Moreover, in embodiment mentioned here, the axial center of a shaft member and a bearing member is extended in a perpendicular direction (the up-down direction of FIG.1, FIG.5, FIG.6), and the shaft member is inserted in a bearing member perpendicularly | vertically. Although the form is illustrated, the present invention can also be applied to the case where the shaft center of the shaft member and the bearing member extends in the horizontal direction (left-right direction) and the shaft member is inserted into the bearing member in the horizontal direction.

  Furthermore, the door opening / closing structure of the present invention can also be employed in a bearing portion of a hinge. In addition, in this embodiment, the shaft member is provided in the shaft member-side receiving recess formed on the end surface of the door. However, the method is not limited to the method of embedding, and the shaft member is protruded from the end surface of the door. It can also be added.

  Moreover, in 1st Embodiment shown in FIGS. 1-4, the shaft member 11 shown in FIG. 2 is provided in the lower end surface 12 of the door 1a, and the bearing member 21 shown in FIG. However, the present invention is not limited to this mode, and the bearing member 21 shown in FIG. 3 may be provided on the lower end surface 12 of the door 1a, and the shaft member 11 shown in FIG.

  Moreover, in 2nd Embodiment shown in FIGS. 5-6, the shaft member 11 shown in FIG. 2 is provided in the lower end surface 62b of the attachment convex part 62 of the door 1a, and the bottom of the notch recessed part 50 of the side plate 6 of furniture F2 is provided. Although the bearing member 21 shown in FIG. 3 is provided on the wall surface 50b, the bearing member 21 shown in FIG. 3 is provided on the lower end surface 62b of the mounting convex portion 62 of the door 1a, and below the notch concave portion 50 of the side plate 6 of the furniture F2. The shaft member 11 shown in FIG. 2 may be provided on the wall surface 50b.

  Moreover, in 2nd Embodiment shown in FIG. 6, although the attachment convex part 62 of the fixed end surface 61 of the door 1a and the notch recessed part 50 formed in the opening side end surface 6a of the side plate 6 of the furniture F2 are each one, Mounting convex portions are provided at a plurality of positions in the vertical direction on the fixed end surface 61 of the door 1a, and notched concave portions are formed at a plurality of vertical positions on the opening side end surface 6a of the side plate 6 of the furniture F2. It can be inserted into the notch recess. In this case, it is possible to provide the shaft member 11 shown in FIG. 2 on the lower end surface of each mounting convex part, and to provide the bearing member 21 shown in FIG. 3 on the lower wall surface of each notch concave part. Or the bearing member 21 shown in FIG. 3 can be provided in the lower end surface of each attachment convex part, and the shaft member 11 shown in FIG. 2 can also be provided in the lower wall surface of each notch recessed part.

F1, F2 Furniture 1a, 1b Door 3 Top plate 4 Ground plate 5 Back plate 6 Side plate 6a Open side end surface of side plate 6 S1, S2 Door opening / closing structure 11 Shaft member 12 Lower end surface 31, 41, 131, 141a, 141b of door 1a Hole 13 Shaft member-side housing 13a Shaft member-side housing step 14 Shaft member-side receiving recess 15 Shaft member-side flange 16, 26 Magnet 16a Tip surface of shaft member 11 (convex portion) 21 Bearing member 22 Upper end surface of base plate 4 DESCRIPTION OF SYMBOLS 23 Bearing member side housing 23a Step part 23b of bearing member side housing 23 Upper end surface of bearing member side housing 23 24 Bearing member side accommodation recessed part 25 Bearing member side collar part 25a End surface of bearing member side collar part 25 Magnet 26a 26 Bottom (upper surface of magnet 26)
27 concave portion 50 notched concave portion 50a upper wall surface 50b of notched concave portion 50 lower wall surface of notched concave portion 61 fixed end surface of door 1a 62 mounting convex portion 62a upper end surface of convex portion 62b lower end surface of convex portion 62 132 pin member P Space R intervention member

Claims (6)

A door opening and closing structure for opening and closing the door by a shaft member and a bearing member having a recess into which the shaft member is rotatably inserted;
The bearing member has a bearing member side flange on the opening edge of the recess,
The shaft member is in contact with the bearing member side collar, and has a shaft member side collar that slides and rotates with respect to the bearing member side collar as the door is opened and closed.
A door opening and closing structure, wherein the tip of the convex portion of the shaft member inserted into the concave portion and the bottom surface of the concave portion of the bearing member are attracted to each other by magnetic force in a non-contact state. When the shaft member is provided with a magnet or a magnetic body, and the shaft member is provided with a magnet, the bearing member is provided with a magnet or a magnetic body that attracts the shaft member. The door opening and closing structure according to claim 1. The magnet is provided on the shaft member, and when the shaft member is provided with a magnetic body, the bearing member is provided with a magnet that attracts the magnetic body. The door opening and closing structure according to 1. The door opening / closing structure according to any one of claims 1 to 3, wherein the shaft member is provided on a lower end surface of the door, and the bearing member is provided on an attachment target body of the door. The shaft member is embedded in a mounting hole formed in a lower end surface of the door and includes a shaft member side housing that protects the shaft member from the outside, and the shaft member side housing protrudes from a tip of the shaft member. said bearing member with the shaft member side accommodating recess for accommodating the magnet or magnetic body, and a said shaft member side collar portion, the bearing member is embedded in the mounting hole formed in the mounting object of door A bearing member-side housing that protects the bearing member from the outside, and the bearing member-side housing includes a bearing member-side housing recess that houses a magnet or a magnetic body of the bearing member, and the bearing member-side flange. The door opening and closing structure according to any one of claims 2 to 4. The door opening and closing structure according to any one of claims 1 to 5, wherein an interposition member for adjusting a sliding condition is provided between the shaft member side flange and the bearing member side flange.

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