JP2016132974A - Self-closing type door support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-closing type door support device, easy in installation work, also imparting the position adjustment function, and having further the function of limiting an opening angle of a door and holding the door at a desired angle.SOLUTION: In a self-closing type door support device of a door body capable of opening-closing a door 4 arranged in an entrance frame 1 by an upper side support shaft 21 projected on a bottom surface 13 in an upper frame 11 of the entrance frame 1 and a lower side support shaft 31 projected on a floor surface 12 of the entrance frame 1 and also supported in a self-closing system via a self-closing device 6 provided in the door 4, the self-closing device 6 is respectively internally attached with a plane cam member 53 having a contour curve of a heart shape or a comma-bead shape in a plane shape respectively internally installed in a case body 51 buried in a top surface 41 of the door 4 and having a fitting-insertion port 52 for nonrotatably fitting-inserting-supporting the upper side support shaft in the center, a roller member 55 for rolling along a cam surface 54 formed on an outer peripheral surface of the plane cam member 53 and a compression spring 57 for energizing the roller member 55 to the plane cam member 53.SELECTED DRAWING: Figure 1

Description

  The present invention always closes the door supported by the upper support shaft projecting from the bottom surface of the upper frame of the entrance / exit frame formed in the building and the lower support shaft projecting from the floor surface of the entrance / exit frame. It is supported by an upper support shaft that protrudes from the bottom surface of the upper frame of the entrance / exit frame that is formed in the building used for holding in position, and a lower support shaft that protrudes from the floor surface of the entrance / exit frame. The present invention relates to a self-closing door support device used for automatically returning a closed door to a closed state.

  Conventionally, the door supported by the upper support shaft protruding from the bottom surface of the entrance frame formed in the building and the lower support shaft protruding from the floor surface of the entrance frame is always held in the closed position. As the self-closing door support device used for the above-mentioned, a device using a gravity hinge as disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-227236, Japanese Patent Application Laid-Open No. 2004-232338, or the like is disclosed. A swing door as disclosed in Japanese Patent No. 323719 is known.

  The gravity hinge is provided with an inclined cam that is opposed to the pivot shaft of the hinge and is naturally restored by pushing one of the inclined cams by its own weight or spring, but when the door is opened, the door rises. In order to come, it is necessary to increase the gap between the door and the upper and lower door frames, or to accommodate the outset. Therefore, the shielding property and appearance are poor, and it is used in a place where there is no problem even if there is a slight gap such as a factory or a toilet, and is not suitable for use of a door in a general place.

  In addition, in a swing door that supports the door by suspending the door on the upper shaft, not only the hinge is not visible on the surface of the door but also the gap between the door frame and the floor surface is small in the gravity hinge, and the appearance is Although it is good, there is also a structure where the door rises when opening and closing, especially because the upper frame bracket and the built-in mechanism on the door side are integrated or close to it, so the frame side bracket can be attached while lifting the door. It is necessary to install it, and two people have to work, and it takes time and effort to install it rather than hanging a normal hinge.

  In addition, because of the structure that supports the full load of the door with a single shaft, an excessive load is applied to the shaft and parts around the shaft, and especially when opening and closing, the force of the spring also acts to cause strength such as cracking and breakage. There is a great concern, and if it breaks, there is a danger that the door will fall, and the parts will inevitably become large due to the necessity to prevent these situations. In addition, it is difficult to adjust the three directions in the horizontal and vertical directions after installation because of the structure. In particular, since the shaft is almost fixed, it is difficult to adjust in the vertical direction, and since the full load of the door is always applied, there is a problem that a large force is required for the adjustment.

JP 2001-227236 A JP 2004-232338 A JP 2001-323719 A

  The present invention was made to solve the problems of the conventional self-closing door support device, and it is not necessary to increase the gap between the door and the upper and lower door frames. It goes without saying that the appearance is beautiful because it is housed in the door, and the overall size of the parts can be reduced, and the springs and cams used are small, so that they can be used in small indoor fittings. In addition, it is not necessary to mount the bracket with the door lifted up, the mounting work is easy, and the horizontal and height adjustment functions can be provided, and the door opening angle is limited. In addition, the present invention provides a self-closing door support device that is superior to conventional ones, such as having a function of holding a door at a desired angle.

  The present invention, which has been made to solve the above problems, includes an upper support shaft projecting on the bottom surface of the upper frame of the entrance / exit frame formed in the building, and a lower support shaft projecting on the floor surface of the entrance / exit frame. A self-closing door support device for a door body that can open and close a door arranged in the entrance / exit frame and supports the door in a self-closing manner through a self-closing device provided in the door, wherein the upper support shaft has its axis position The lower support shaft is supported by an upper support shaft mounting member that moves and fixes in the horizontal direction, and the lower support shaft is supported by a lower support shaft mounting member that can move and fix the axis position in the horizontal direction. The closing device has a contour shape of a heart shape or a slanted ball shape that is respectively embedded in the case body embedded in the top surface of the door, and the upper support shaft is fitted and supported in a non-rotatable manner at the center. A planar cam member having an insertion opening and a front A roller member that rolls along the cam surface formed on the outer peripheral surface of the flat cam member, characterized in that the compression spring that urges the roller member to the flat cam member is furnished respectively.

  Further, in the case of using the slant-shaped flat cam member, a gear is pivotally attached to the cam shaft, and the gear is used as another gear having an insertion opening for inserting and supporting the upper support shaft in a non-rotatable manner. It is characterized by meshing.

  In particular, the upper support shaft can be inserted from both sides by an insertion opening formed on the other gear for insertion and support, and the case body is inverted in the vertical direction and embedded in the top surface of the door. Thus, it is possible to mount according to the opening and closing direction of the door.

  According to the present invention, it is not necessary to increase the gap between the door and the upper and lower door frames, and since the upper part of the door is accommodated in the door, it is needless to say that the appearance is also beautiful. Can be used with small indoor fittings, and it is not necessary to mount the bracket with the door lifted up, and the mounting work is easy and horizontal. It is also possible to provide a function of adjusting the direction and the height direction, and further, it is possible to provide a function of limiting the opening angle of the door and holding the door at a desired angle.

Schematic which shows the use condition in preferable embodiment of this invention. FIG. 2 shows a main part of an upper portion in the embodiment shown in FIG. 1, (a) is a schematic view showing a use state, (b) is a bottom view of the upper support shaft mounting member, and (c) is self-closing. The top view of an apparatus, (d) is explanatory drawing which shows the open / close state of a self-closing apparatus. It shows the principal part of the lower part in the embodiment shown in FIG. 1, (a) is a schematic diagram showing a use state, (b) is a door side receiving member that constitutes a part of the lower support member (C) is a top view of a lower side support shaft attachment member. It is explanatory drawing which shows the movement state of the horizontal direction of the lower side support shaft attachment member shown in FIG.3 (c), (a) is a standard state, (b) is the state adjusted to the left direction toward (c), Is a state adjusted rightward, (d) is a state adjusted forward, and (e) is a state adjusted backward. The top view which shows the use condition in different embodiment of this invention. Schematic which shows the principal part in further different embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show a preferred embodiment of the present invention. In this embodiment, an upper support shaft 21 is projected from a bottom surface 13 of an upper frame 11 of an entrance / exit frame 1 formed in a building. An upper support shaft mounting member 2 for mounting, a lower support shaft mounting member 3 for mounting the lower support shaft 31 in a projecting state on the floor 12 of the doorway frame 1, and the doorway frame 1. The upper support shaft 21 and the lower support shaft 31 support the door 4 so that it can be opened and closed.

  In the present embodiment, the self-closing device 5 for self-closing the door 4 is embedded in a recess 42 formed on the top surface 41 of the door 4 and is fixed by a mounting screw 50. A planar cam member 53 having a heart-shaped contour curve and a fitting hole 52 for fitting and supporting the upper support shaft 21 in a non-rotatable manner at the center, and an outer peripheral surface of the planar cam member 53. A roller member 55 that rolls along the formed cam surface 54, a support member 56 of the roller member 55, a compression spring 57 for applying a pressing force to the cam surface 54 of the flat cam member 53, and further, An adjustment screw 58 for adjusting the urging force of the compression spring 57 is formed.

  More specifically, the upper support shaft mounting member 2 that supports the upper support shaft 21 is embedded in a recess 14 formed in the bottom surface 13 of the upper frame 11 of the entrance / exit frame 1 as shown in FIGS. In this state, the upper support shaft 21 is suspended from the top surface which is disposed so as to be movable in the horizontal direction in the base 23 fixed by the mounting screw 22 and the gap 24 formed by folding the tip of the base 23. A guide protrusion 27 projecting from the bottom surface of the support portion 26 is formed in the opening 25 extending in the left-right direction formed at the edge of the folded portion of the base portion 23. It is inserted so as to be movable in the length direction by a distance, and the support portion 26 can be rotated within a predetermined angular range around the guide projection 27. The position adjustment of the guide projection 27 and the guide projection 27 The By turning the adjustment to heart by moving the support 26 for adjusting the mounting position of the horizontal direction (front, rear, right and left direction) of the guide projection 27. Then, after adjusting the horizontal mounting position, it is loosened in advance to a fixing screw hole (not shown) formed in the base 23 under the relief hole 29 formed in the support portion 26. The fixing screw 28 that has been screwed can be screwed to fix the mounting position of the support portion 26, and the upper support shaft 21 can be fixed in a state of protruding at a desired horizontal position.

  In the present embodiment, the rightmost mounting screw 22 shown in the mounting screws 22 used for mounting the upper support shaft mounting member 2 to the upper frame 11 of the entrance / exit frame 1 has a base 23 shifted. In the unlikely event that the base 23 does not come off from the upper frame 11, it also serves to prevent the base 23 from being detached.

  Further, the lower support shaft mounting member 3 for supporting the lower support shaft 31 is basically similar in structure to the upper support shaft mounting member 2 as shown in FIG. 3 and FIG. The upper support shaft 31 is protruded from a base portion 33 fixed to the floor surface 12 by a mounting screw 32 and a bottom surface movably disposed in the horizontal direction in a gap 34 formed by folding the tip of the base portion 33. A guide projection 37 projecting from the top surface of the support portion 36 is inserted into an opening 35 extending in the left-right direction formed at the edge of the folded portion of the base portion 33 and the support portion 36. The support portion 36 can be rotated within a predetermined angle range around the guide projection 37 in the portion 36, and the fixing portion 36 is formed on the base portion 33 through the relief hole 39 formed in the support portion 36. Screw holes (not shown) The fixing screw 38, which has been screwed in a loosened state), is screwed to fix the mounting position of the support portion 36, and the lower support shaft 31 is fixed in a state protruding from a desired horizontal position. (See FIG. 4).

  Further, the lower support shaft mounting member 3 is configured so as to make it possible to move the axial center position of the lower support shaft 31 in the horizontal direction, but on the door 4 side, FIGS. ), (B), a receiving member 6 constituting a part of the lower support member 3 is embedded in a recess 44 formed in the bottom surface 43 of the door 4.

  The receiving member 6 is embedded in a recess 44 formed on the bottom surface 43 of the door 4 and fixed by a mounting screw 61, and a height adjusting screw 63 disposed in the case body 62 in the vertical direction. And a support member 64 of the lower support shaft 31 that is fitted on the lower support shaft 31 installed on the floor 12 and supports the door 4 is arranged by moving up and down by the rotation of the height adjusting screw 63. Yes. In particular, in the present embodiment, the support member 64 is configured such that the height position of the opening end 65 into which the lower support shaft 31 formed on the bottom surface is inserted can be moved to a position higher than the top surface of the lower support shaft 31. Has been placed.

  Accordingly, the lower support member 3 itself can move the lower shaft member 31 in the horizontal direction and can be adjusted by moving the vertical support position of the door 4 by the receiving member 6.

  As shown in FIG. 1, the present embodiment having the above configuration is a flat cam member 53 of a self-closing device 5 in which an upper support shaft 21 installed on an upper frame 11 of an entrance / exit frame 1 is installed on an upper part of a door 4. While being inserted into the insertion slot 52 and supported so as not to rotate, the lower support shaft 31 installed on the floor 12 is placed on the receiving member 6 disposed on the bottom surface 43 of the door 4 so that the door is placed on the entrance / exit frame 1. Supports opening and closing.

  At this time, in this Embodiment, the support part 26 is removed from the upper side support shaft attachment member 2, and the door 4 is made into the state which inserted the upper side support shaft 21 in the insertion opening 52 of the self-closing apparatus 5 installed in the door 4. By holding the lower support shaft 31 into the support member 64 of the receiving member 6 and supporting the door 4, the support portion 26 is inserted into the base portion 23 and fixed with the fixing screw 28, so that the door 4 can be very easily attached. 1 can be attached.

  Then, the horizontal position of the support portion 26 of the upper support shaft mounting member 2 is adjusted to adjust the horizontal position of the upper support shaft 21 and the horizontal position of the support portion 36 of the lower support shaft mounting member 3 to fix the screw. The door 4 can be accurately placed on the entrance / exit frame 1 by being fixed by 38, and if necessary, the height adjustment screw 63 is adjusted to adjust the height position of the door.

  As described above, in this embodiment, since the mounting position of the door 4 can be adjusted with respect to the front, rear, left, right, and height with the door 4 mounted, the operation is easy and the adjustment can be performed using screws. Convenient.

  Further, in the present embodiment, since the self-closing device 5 is arranged on the door 4, as shown in FIG. 2D, when the door is closed (right lateral position in the figure), Since the roller member 55 pressed by the compression spring 57 is in contact with the recess 59 formed in the center of the flat cam member 53, the door 4 is maintained in the closed state.

  When the door 4 is opened, the self-closing device 5 disposed on the door 4 is moved to the position shown in FIG. Deviates from the recess 59 formed in the center of the flat cam member 53 and moves along the cam surface 54. When the force in the opening direction on the door 4 is released, the roller member pressed by the compression spring 57 Since 55 is in contact with the cam surface 54, it returns to the recess 59 formed in the center, and the door 4 is self-closed.

  As described above, in this embodiment, the number of components is small, and the weight of the door 4 is supported by the lower support shaft 31 without being suspended from the upper support shaft 21. It can be used for large and heavy doors 4 and excessive load is applied to the self-closing device shaft and parts around the shaft as in the case of adopting the conventional swing structure that supports the full load of the door with a single shaft. And the self-closing device 5 is independent of the upper support shaft 31, so that the upper support shaft mounting member 2 and the lower support shaft mounting member 3 are connected to the upper frame 11 and The door 4 can be installed after being attached to the floor surface 12, and there is no difficulty in attaching the attachment member while holding the door 4. In particular, after the door 4 is installed, the door mounting position can be finely adjusted in the horizontal direction and the vertical direction.

  Furthermore, since the present embodiment does not expose parts to the outside of the door 4, the appearance is also beautiful, and the planar cam member 53 having a heart-shaped contour curve is used for the door 4 to be used. Either double-opening or single-opening can be used. In the case of single-opening, it can be used regardless of the opening direction.

  In addition, since the self-closing force can be easily adjusted by turning the adjusting screw 58, the self-closing speed of the door 4 can be adjusted, and the strength and number of the compression springs 57 can be changed with the same component configuration. Thus, for example, the self-closing device 5 of the door 4 having a different weight can be easily provided.

  Furthermore, in the present embodiment, the opening angle of the door 4 is limited by providing a step or a dent (not shown) at a desired position of the cam surface 54 in the flat cam member 53, or the door 4 at a desired angle. It is also possible to have a function of holding

  FIG. 5 shows a different embodiment of the present invention, and the overall configuration is substantially the same as that of the embodiment shown in FIGS. 1 to 4, but the planar shape of the planar cam member 53 is the same. A gear 71 is mounted on the cam shaft of the ball-shaped flat cam member 53, and the insertion port 52 for inserting and supporting the gear 71 with the upper support shaft 21 so as not to rotate is provided. The difference is that it is meshed with the other gear 72.

  In the present embodiment, the usable door 4 is limited to a single door, but on the other hand, the distance of the cam surface 54 becomes longer, the contact length of the roller can be increased, and the difference in rotational radius can be increased. There is an advantage that the width of adjustment can be widened by widening the closing speed. Moreover, since the distance of a cam surface is long, it is easy to form the level | step difference and dent for making a cam surface hold | maintain a roller.

  Further, according to the present embodiment, an insertion opening 52 for inserting and supporting the upper support shaft 21 formed on the other gear 72 can be inserted from both sides, and the case body 51 is inverted in the vertical direction to By being embedded in the top surface 41 of the door 4, it is possible to mount the door 4 in accordance with the opening / closing direction of the door 4.

  FIG. 5 shows still another embodiment of the present invention, and the overall configuration is the same as that of the above embodiment. However, the upper support shaft 21 is extended and protruded from the fitting insertion port 52. A control device 8 such as a rotary damper or a brake is attached, and further minor adjustment is possible.

  DESCRIPTION OF SYMBOLS 1 Entrance / exit frame, 2 Upper support shaft attachment member, 3 Lower support shaft attachment member, 4 Door, 5 Self-closing device, 6 Receiving member, 11 Upper frame, 12 Floor surface, 13 Bottom surface (upper frame), 14 Recessed part, 21 Upper support shaft, 22 mounting screw, 23 base, 24 clearance, 26 support, 31 lower support shaft, 32 mounting screw, 33 base, 34 clearance, 36 support, 41 top surface (door), 42 recess, 43 bottom surface , 44 recess, 50 mounting screw, 51 case body, 52 insertion slot, 53 flat cam member, 54 cam surface, 55 roller member, 57 compression spring, 61 mounting screw, 62 case body, 63 height adjustment screw, 71, 72 gears

Claims (3)

  The door arranged in the entrance / exit frame can be opened / closed by an upper support shaft projecting from the bottom surface of the upper frame of the entrance / exit frame formed in the building and a lower support shaft projecting from the floor surface of the entrance / exit frame. A self-closing door support device for a door body that is self-closing supported via a self-closing device provided in the door, wherein the upper support shaft moves and fixes its axial position in the horizontal direction. And the lower support shaft is supported by a lower support shaft mounting member that can move and fix the axis position in the horizontal direction, and the self-closing device is embedded in the top surface of the door. A planar cam member having an insertion opening for inserting and supporting the upper support shaft in a non-rotatable manner at the center thereof, and the planar shape respectively incorporated in the case body has a heart-shaped or slanting-shaped contour curve; On the cam surface formed on the outer peripheral surface of the member A roller member that rolls I, self-closing door supporting apparatus compression spring for urging is characterized in that it is furnished respectively the roller member to the flat cam member.   In the case where the slanted ball-shaped cam member is used, a gear is attached to the camshaft, and this gear is engaged with another gear having an insertion opening for inserting and supporting the upper support shaft in a non-rotatable manner. The self-closing door support device according to claim 1, wherein   An insertion opening formed in the other gear for insertion and support is capable of inserting the upper support shaft from both sides, and the case body is inverted in the vertical direction and embedded in the top surface of the door. The self-closing door support device according to claim 2, wherein mounting is possible in accordance with the opening / closing direction of the door.