JP6189212B2 - Retractor unit - Google Patents

Description

  The present invention relates to a retracting device unit that applies a retracting force to a hinged door of a building.

  2. Description of the Related Art A retracting device unit that applies a retracting force to a hinged door of a building is known (see Patent Document 1). As shown in FIG. 10, the retracting device unit includes a retracting device 102 attached to the frame 101 and a receiving seat 104 attached to the hinged door 103. The retracting device 102 includes an arm 102a that rotates around a vertical axis from a retracted position to a retracted position. The arm 102a has a groove 102b into which the receiving shaft 104a of the receiving seat 104 is detachably fitted. As shown in FIG. 11A, when the hinged door 103 is closed, the receiving shaft 104a of the receiving seat 104 is fitted into the groove 102b of the arm 102a at the position where it is pulled out. As shown in FIGS. 11 (a) to 11 (b), the arm 102a rotates around the vertical axis in a state where the receiving shaft 104a is fitted in the groove 102b, and applies a rotational force in the closing direction to the hinged door 103. Give. As shown in FIG. 10, when the hinged door 103 is opened, the seat shaft 104a of the seat 104 moves away from the groove 102b of the arm 102a. For this reason, the hinged door 103 can be opened with little force.

JP 2009-287237 A

  In the retractor unit, when the hinged door is closed, the seat shaft of the seat must be fitted in the groove of the arm of the retractor. From this request, in the conventional retractor unit, either the retractor or the seat is attached to the lower surface of the upper frame of the frame.

  However, when the retracting device is attached to the lower surface of the upper frame, a space for attaching the retracting device or the receiving seat to the lower surface of the upper frame is required, and there is a problem that the thickness of the frame increases.

  Accordingly, an object of the present invention is to provide a retracting device unit that can be attached with a retracting device or a receiving seat regardless of the thickness of the frame and can be easily attached.

  In order to solve the above-described problem, one embodiment of the present invention is the opening side of the hinged door and the retracting device attached to the wall surface on the opening direction side of the hinged door of the upper frame or the building. The retraction device and the other of the receiving seat attached to the wall surface of the retraction device, wherein the retraction device has a groove into which the receiving shaft of the receiving seat is detachably fitted, and when the hinged door is closed, the retraction device The swinging door includes an arm that rotates around a vertical axis in a state in which the seating shaft is fitted, applies a rotational force in the closing direction to the hinged door, and opens the hinged door, and the seating shaft is separated from the groove. The retracting device unit engages the arm of the retracting device and the seat shaft above the upper surface of the retracting device.

  In a preferred aspect of the present invention, the retracting device or the receiving seat is attached to a wall surface of an upper frame of the frame, and the retracting device or the receiving seat has a positioning piece capable of contacting the lower surface of the upper frame of the frame. It is characterized by that.

  In a further preferred aspect of the present invention, the retracting device includes the positioning piece, a bracket having a main body portion attached to a wall surface of the upper frame by a fastening member, and a retracting device main body attached to the bracket by the fastening member. It is characterized by providing.

  In a further preferred aspect of the present invention, the seat or the retracting device is attached to the wall surface of the hinged door, and the seat or the retracting device has a positioning piece that can contact the upper surface of the hinged door. .

  In a further preferred aspect of the present invention, the seat includes a position adjusting mechanism that adjusts a position of the seat shaft in a direction orthogonal to the wall surface of the upper frame of the frame or the wall surface of the hinged door. To do.

  According to one aspect of the present invention, either the retracting device or the receiving seat is attached to the upper frame of the frame or the wall surface of the building on the opening direction side of the hinged door, and the other of the retracting device and the receiving seat is the hinged door opening. Since it is attached to the wall on the direction side, it is not necessary to attach a retracting device or a seat to the lower surface of the upper frame of the frame, and the retracting device unit can be attached regardless of the thickness of the frame. In addition, since the arm of the retracting device and the seat shaft are engaged above the upper surface of the hinged door, when the hinged door is opened and closed, the arm of the retractable device or the seat of the seat that is attached to the wall of the building is received. The seat axis does not hit the hinged door. Furthermore, since the arm of the retracting device and the seat shaft of the seat are easily visible, the position adjustment of the retracting device and the seat is also facilitated. Further, since the retracting device and the seat are attached to the opening direction side (for example, the outdoor side) of the frame and the hinged door, for example, the aesthetic appearance of the frame and the hinged door when viewed from the indoor side is improved.

  According to the preferable one aspect | mode of this invention, since a drawing-in apparatus or a seat has a positioning piece which can contact | abut to the lower surface of the upper frame of a frame, a drawing-in apparatus can be positioned to an up-down direction.

  According to a further preferred aspect of the present invention, since the retracting device includes a bracket attached to the wall surface of the upper frame by a fastening member and a retracting device main body attached to the bracket by the fastening member, the dimension in the height direction is It is easy to attach the retracting device to the small upper frame.

  According to a further preferred aspect of the present invention, since the seat or the retracting device has the positioning piece that can contact the upper surface of the hinged door, the seat or the retracting device can be positioned in the vertical direction.

  According to a further preferred aspect of the present invention, the position of the receiving shaft can be adjusted in a direction orthogonal to the wall surface of the upper frame or the wall surface of the hinged door.

The perspective view of the drawing-in apparatus unit of 1st embodiment of this invention. The perspective view of the drawing-in apparatus unit of this embodiment which removed the decorative cover Internal structure diagram of retractor of this embodiment The exploded perspective view of the drawing-in device of this embodiment The exploded perspective view of the seat of this embodiment Front view of retractor and seat according to this embodiment VII-VII sectional view of FIG. FIG. 8A is a plan view showing the behavior of the arm when the hinged door is closed (FIG. 8A shows a state in which the receiving shaft is in contact with the arm at the pulled-out position, and FIG. 8B is a thought point in the retracting direction of the arm. Shows the state rotated to the angle of The perspective view of the drawing-in apparatus unit of 2nd embodiment of this invention. Perspective view of a conventional retractor unit FIG. 11A is a plan view showing the behavior of the arm of the conventional retracting device unit (FIG. 11A shows a state in which the receiving shaft is in contact with the arm at the pulled-out position, and FIG. 11B rotates the arm to the retracted position. Shows the condition

  The retracting device unit according to the first embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows the retracting device unit of this embodiment attached to the frame 1 and the hinged door 2. The frame 1 includes an upper frame 1a, left and right vertical frames 1b and 1c, and a lower frame 1d. Inside the frame 1, there is provided a door stop 1 e that hits the wall surface on the closing direction side of the hinged door 2 when the hinged door 2 is closed. A hinged door 2 is attached to the frame 1 through a uniaxial hinge 3 so as to be opened and closed. When the hinged door 2 is closed, the wall surface 1f of the frame 1 and the wall surface 2a of the hinged door 2 are arranged in substantially the same plane.

  The retracting device 4 is attached to the wall surface 1 f of the upper frame 1 a on the opening direction side of the hinged door 2. The retracting device 4 includes an arm 5 that rotates around a vertical axis from a retracted position to a retracted position. The arm 5 has a groove 5a into which the receiving shaft 7 of the receiving seat 6 is detachably fitted. The vertical axis that becomes the rotation center of the arm 5 is arranged on the fishing side. A receiving seat 6 is attached to the wall surface 2 a on the opening direction side of the hinged door 2. The seat 6 includes a seat shaft 7 that fits into the groove 5 a of the arm 5 of the retracting device 4. The retracting device 4 and the seat 6 are covered with a decorative cover.

  As shown in FIG. 1, when the hinged door 2 is opened, the seat shaft 7 of the seat 6 is separated from the arm 5 of the retracting device 4. When the hinged door 2 is closed, the receiving shaft 7 fits into the groove 5a of the arm 5 and rotates around the vertical axis from the position where the arm 5 is pulled out to the retracted position, thereby applying a rotational force in the closing direction to the hinged door 2. . The arm 5 is disposed above the upper surface 2b of the hinged door 2 so as not to hit the hinged door 2 that opens and closes. At least an upper end portion of the receiving shaft 7 is disposed above the upper surface 2 b of the hinged door 2 so that the arm 5 can be engaged.

  FIG. 2 shows the retracting device 4 and the seat 6 with the decorative cover removed. The retracting device 4 includes a bracket 11 attached to a wall surface 1f of the upper frame 1a by a fastening member such as a screw, and a retracting device main body 12 attached to the bracket 11 by a fastening member such as a caulking pin. The bracket 11 has a positioning claw 14 as a positioning piece that can come into contact with the lower surface 1g of the upper frame 1a (see FIG. 3), and is attached to the upper frame 1a while being positioned in the vertical direction. Frame 1 is surrounded by a building wall. When the bracket 11 does not fit within the vertical dimension of the upper frame 1a, the bracket 11 may be attached to the upper frame 1a and the wall surface of the building, or may be attached only to the wall surface of the building.

  As shown in FIG. 2, the receiving seat 6 is attached to the upper end of the wall surface 2 a of the hinged door 2 by a fastening member such as a screw. The receiving seat 6 has a positioning claw 8 as a positioning piece that can come into contact with the upper surface 2 b of the hinged door 2. The receiving seat 6 is attached to the hinged door 2 in a state of being positioned in the vertical direction. The structure of the seat 6 will be described later.

  FIG. 3 shows an internal structure diagram of the retracting device 4. The retracting device 4 includes a bracket 11 and a retracting device main body 12 attached to the bracket 11. The pull-in device main body 12 includes a case 21 indicated by a two-dot chain line in FIG. 3, an arm 5 supported by the case 21 so as to be rotatable around a vertical axis, and a rotational force (torque) in the pull-out direction and the pull-in direction. And a damper mechanism 23 that slowly retracts the arm 5 when retracted.

  The bracket 11, the case 21, the arm 5, the slider crank mechanism 22, and the damper mechanism 23 will be described in order with reference to the exploded perspective view of FIG.

  The bracket 11 includes a main body plate 15 as a main body portion to which the retracting device main body 12 is attached, and a positioning claw 14 as a positioning piece. The main body plate 15 is formed in a rectangular shape that is elongated in the left-right direction (the opening direction of the frame 1). The body plate 15 is provided with an attachment hole 15a into which a fastening member such as a screw for attaching the bracket 11 to the upper frame 1a is inserted. Further, the body plate 15 is provided with a mounting hole 15b into which a fastening member such as a caulking pin 16 for mounting the retracting device body 12 is inserted. The positioning claw 14 protrudes in the direction orthogonal to the main body plate 15 on the back side of the main body plate 15. A plurality of positioning claws 14 are provided apart in the length direction of the main body plate 15. Both end portions 15c in the length direction of the main body plate 15 are bent toward the retracting device main body 12 side. The back side of the main body plate 15 contacts the wall surface 1f of the upper frame 1a. The positioning claw 14 contacts the lower surface 1g of the upper frame 1a.

  The case 21 has a pair of side walls 21a and a bottom wall 21b, and is formed in a U-shaped cross section. The case 21 is elongated in the left-right direction (the opening direction of the frame 1). The vertical shaft 24 of the arm 5 is disposed at the center of the case 21 in the length direction. The slider crank mechanism 22 is disposed on one side of the vertical shaft 24 of the case 21, and the damper mechanism 23 is disposed on the other side of the vertical shaft 24 of the case 21. The upper end portion of the case 21 and both end portions in the length direction are opened. An arm opening 21 c for rotating the arm 5 is opened at the lower portion of the case 21.

  The arm 5 includes a metal arm main body 31, a shock absorber 32 that reduces an impact sound when colliding with the receiving shaft 7, and a resin arm cover 33 that covers the arm main body 31 and exposes the shock absorber 32. And an arm shaft 34 made of resin that rotates integrally with the arm main body 31. The arm cover 33 also has a role of preventing the buffer body 32 from falling off the arm body 31. The reason why the arm body 31 is made of metal is to increase the strength of the arm 5 and to apply a pulling force to the heavy hinged door 2. However, if the weight of the hinged door 2 is not heavy, the arm main body 31 and the arm cover 33 can also be made into an integral resin molded product.

  A vertical shaft 24 passes through the arm body 31 and the arm shaft 34. Both ends of the vertical shaft 24 are fixed to the case 21 of the retractor main body 12. The arm body 31 and the arm shaft 34 rotate integrally around the vertical shaft 24. The arm body 31 and the arm shaft 34 are connected by first and second pins 35a and 35b. The first pin 35 a is connected to a link 36 of the slider crank mechanism 22 that applies a rotational force to the arm 5. The second pin 35 b is connected to the slide block 41 of the damper mechanism 23 that applies a braking force to the rotating arm 5.

  The slider crank mechanism 22 includes a link 36, a slider 37, a coil spring 38, and a spring base 39. One end of the link 36 is rotatably connected to the arm 5 via a first pin 35 a at a position eccentric from the vertical shaft 24, and the other end of the link 36 is rotatably connected to the slider 37 via a pin 40. Is done. The slider 37 is supported by the case 21 so as to be slidable in one direction. A coil spring 38 as an elastic member is interposed between the slider 37 and the spring base 39 and applies a biasing force to the slider 37.

  The damper mechanism 23 includes a slide block 41, for example, three dampers 42, a damper receiver 43 that adjusts the position of the damper 42, a damper base 44, and a damper adjustment shaft 45. The slide block 41 is formed with a long hole 41a through which the second pin 35b of the arm 5 is passed. The slide block 41 is supported by the case 21 so as to be slidable in one direction. When the arm 5 rotates, the slide block 41 slides in one direction. The damper 42 is interposed between the slide block 41 and the damper receiver 43. As the damper 42, an expandable damper in which a rod strokes with respect to the main body portion is used. When the arm 5 rotates in the retracted direction, the damper 42 is contracted, and a damper force is generated. The damper base 44 is fixed to the case 21. The damper base 44 is formed with a plurality of stages (two stages in this embodiment) in the vertical direction and a plurality of rows (two lines in this embodiment) of damper accommodating portions 44a in the left-right direction. The damper base 44 is provided with a damper receiver 43 in contact with the plurality of dampers 42 so as to be slidable in one direction. A damper adjusting shaft 45 for adjusting the position of the damper receiver 43 in one direction is incorporated in the damper base 44. By rotating the damper adjustment shaft 45, the positions of the damper receivers 43 in contact with the plurality of dampers 42 are adjusted, and the positions of the plurality of dampers 42 are adjusted simultaneously. The reason for providing the damper receiver 43 is to simultaneously adjust the positions of the plurality of dampers 42 arranged in the vertical direction and the horizontal direction.

  FIG. 5 shows an exploded perspective view of the seat 6. The receiving seat 6 is attached to the wall surface 2 a of the hinged door 2 of the receiving base 51 attached to the wall surface 2 a of the hinged door 2, the receiving shaft 7 supported by the receiving base 51, and the receiving shaft 7 with respect to the receiving base 51. And a receiving block 52 as a position adjusting mechanism for adjusting a position in a direction perpendicular to the direction (hereinafter referred to as a depth direction). The receiving base 51 protrudes from the wall surface 2a of the hinged door 2 in a bracket shape. A mounting hole 51 a into which a fastening member such as a screw for mounting the receiving seat 6 to the hinged door 2 is inserted is opened in the receiving base 51. The receiving base 51 is provided with a positioning claw 8 as a positioning piece protruding to the back side of the receiving base 51. A plurality of positioning claws 8 are provided apart from each other in the left-right direction of the receiving base 51 (the opening direction of the hinged door 2). The back side of the receiving base 51 contacts the wall surface 2a of the hinged door 2 (see FIG. 2). The positioning claw 8 contacts the upper surface 2b of the hinged door 2 (see FIG. 2). On the upper surface of the receiving base 51, jagged portions 51c (continuous irregularities) are formed.

  A receiving block 52 is attached to the upper surface of the receiving base 51 via a fastening member 58 such as a screw. On the lower surface of the receiving block 52, jagged edges 52a (continuous irregularities) are formed. If the fastening member 58 is loosened, the position of the receiving block 52 in the depth direction can be adjusted. When the fastening member 58 is tightened after the adjustment, the receiving block 52 is fixed to the receiving base 51 in the depth direction.

  The seat shaft 7 is fixed to the seat block 52. The receiving shaft 7 includes a fixed shaft 56 that is screwed to the receiving block 52 and a movable shaft 55 that is movable in the axial direction with respect to the fixed shaft 56. As shown in the front view of the seat 6 in FIG. 6, the movable shaft 55 fits into the groove 5 a of the arm 5. As shown in the cross-sectional view of the seat 6 in FIG. 7, the movable shaft 55 is telescoped on the fixed shaft 56 in a state of protruding by the coil spring 54. A screw is formed on the outer peripheral surface of the fixed shaft 56, and the fixed shaft 56 is fixed to the seat block 52 with a screw. A nut 57 is also screwed onto the fixed shaft 56. When the fixed shaft 56 is rotated, the vertical position of the fixed shaft 56 is adjusted by the action of the screw. After adjusting the position of the fixed shaft 56, the fixed shaft 56 is fixed to the seat block 52 by tightening the nut 57.

  The coil spring 54 is interposed between the movable shaft 55 and the fixed shaft 56 because the movable shaft 55 fits into the groove 5a of the arm 5 even if the arm 5 at the position pulled out by mischief or the like moves to the retracted position. This is to make it round. As shown in FIG. 7, even when the arm 5 is moved to the retracted position, when the hinged door 2 is closed, the movable shaft 55 gets over the inclined surface 5b on the side of the groove 5a of the arm 5 and fits into the groove 5a of the arm 5. Maru. A coil spring 54 is provided so that the movable shaft 55 gets over the inclined surface 5b. Fixed to the fixed shaft 56 is a guide shaft 53 that corrects distortion of the expanding and contracting coil spring 54.

  The movement of the retracting device 4 will be described with reference to FIG. As shown in FIG. 8A, when the arm 5 is in the pulled-out position, the slider crank mechanism 22 applies a rotational force (torque) in the direction (1) further pulled out to the arm 5. For this reason, the position where the arm 5 is pulled out is maintained. When the hinged door 2 is closed and the receiving shaft 7 hits the arm 5 at the position where it is pulled out, the arm 5 rotates in the retracting direction (2) as shown in FIG. Since the arm 5 is provided with the buffer body 32, the impact sound at this time can be reduced. When the arm 5 exceeds the ideal point of the slider crank mechanism 22, the slider crank mechanism 22 applies a torque in the retracting direction (2) to the arm 5, and the arm 5 rotates in the retracting direction (2). Since the receiving shaft 7 is fitted in the groove 5 a of the arm 5, a retraction force is applied to the hinged door 2 by the rotation of the arm 5 in the retraction direction (2). When the hinged door 2 is in the fully closed position corresponding to 1e per door, the slider crank mechanism 22 further applies torque in the retracting direction (2) to the arm 5. For this reason, the fully closed position of the hinged door 2 is maintained.

  When the hinged door 2 is opened, the arm 5 shows the opposite behavior to that described above. That is, when the hinged door 2 is opened, the receiving shaft 7 rotates the arm 5 from the retracted position in the pulling direction (1). When the arm 5 rotates to the angle of the thought point shown in FIG. 8B, the direction of the rotational force applied to the arm 5 by the slider crank mechanism 22 is switched, and the rotational force in the pulling direction (1) is applied to the arm 5. For this reason, the arm 5 automatically rotates to the drawing position shown in FIG.

  FIG. 9 shows a retractor unit according to the second embodiment of the present invention. In the retracting device unit of the first embodiment, the retracting device 4 is attached to the wall surface 1f of the upper frame 1a of the frame 1 and the seat 6 is attached to the wall surface 2a of the hinged door 2, but in this embodiment, The retracting device 4 is attached to the wall surface 2 a of the hinged door 2, and the seat 6 is attached to the wall surface 1 f of the upper frame 1 a of the frame 1. The receiving shaft 7 of the receiving seat 6 is disposed above the upper surface 2b of the hinged door 2 so as not to hit the hinged door 2 that opens and closes. The arm 5 of the retracting device 4 is disposed above the upper surface 2 b of the hinged door 2 so as to engage with the receiving shaft 7 of the receiving seat 6.

  In this embodiment, the retracting device 4 is directly attached to the hinged door 2 without using the bracket 11. The rest of the structure of the retracting device 4 is substantially the same as that of the retracting device 4 of the first embodiment, so that the same reference numerals are given and description thereof is omitted. Moreover, since the structure of the receiving seat 6 is also substantially the same as the receiving seat 6 of 1st embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  Note that the present invention is not limited to the embodiment described above, and can be modified to various embodiments without departing from the gist of the present invention.

  The structure of the drawing-in device described above is an example. For example, a damper mechanism can be omitted, and various mechanisms other than the slider crank mechanism can be adopted as long as a rotational force can be applied to the arm. It is not necessary to provide a buffer on the arm.

  Moreover, in the said embodiment, although the positioning nail | claw is provided in the bracket to which a drawing-in apparatus main body is attached, a positioning claw can be provided in the case of a drawing-in apparatus, and a drawing-in apparatus can also be directly attached to a frame without a bracket.

DESCRIPTION OF SYMBOLS 1 ... Frame 1a ... Upper frame 1f ... Upper frame wall surface 2 ... Opening door 2a ... Opening door wall surface 2b ... Opening door upper surface 4 ... Retraction device 5 ... Arm 5a ... Arm groove 6 ... Receiving seat 7 ... Receiving shaft 8 ... Receiving Positioning claw of seat (positioning piece of seat)
DESCRIPTION OF SYMBOLS 11 ... Bracket 12 ... Retracting device main body 14 ... Retraction device positioning claw (Retraction device positioning piece)
15 ... Main body plate (main body)
24 ... Vertical axis of arm

Claims (5)

Either the upper frame of the frame or the retractor attached to the wall of the building on the opening direction side of the hinged door and the receiving seat;
The other of the retracting device and the receiving seat that is attached to the wall surface on the opening direction side of the hinged door,
The retractor is
The receiving shaft of the receiving seat has a groove that fits in a detachable manner, and when the hinged door is closed, it rotates around the vertical axis with the seating shaft fitted in the groove and closes in the closing direction of the hinged door. When the rotational force is applied and the hinged door is opened, the seat shaft includes an arm that moves away from the groove,
A retracting device unit in which the arm of the retracting device and the seat shaft are engaged above the upper surface of the hinged door. The retractor or the seat is attached to the wall surface of the upper frame of the frame,
2. The retracting device unit according to claim 1, wherein the retracting device or the receiving seat includes a positioning piece capable of contacting a lower surface of an upper frame of the frame. The retractor is
A bracket having a body portion attached to the positioning piece and a wall surface of the upper frame by a fastening member;
The retractor unit according to claim 2, further comprising a retractor main body attached to the bracket by a fastening member. The seat or the retracting device is attached to the wall surface of the hinged door,
4. The retracting device unit according to claim 1, wherein the seat or the retracting device has a positioning piece capable of contacting an upper surface of the hinged door. 5.   The said seat is provided with the position adjustment mechanism which adjusts the position of the direction orthogonal to the wall surface of the upper frame of a frame, or the wall surface of a hinged door of the said seat axis | shaft. The retractor unit described in 1.

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