JP2016183493A - hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge that reduces a size of a gap between an edge part on a pivot side of a swing door and a door stop on a door frame when the swing door is closed, and mitigates unintended movement of a hinge piece when the door is opened.SOLUTION: A hinge includes a fixed-side half body fitted on a door frame side, a movable-side half body fixed on a door side, and a shaft body connecting the fixing-side half body and the movable-side half body. The fixed-side half body includes a fixed-side shaft tube into which an end of the shaft body is inserted, while the movable-side half body includes a movable-side shaft tube into which the other end of the shaft body is inserted. A cam mechanism is formed on a part of an outer peripheral surface of the shaft body in a shaft direction and an inner peripheral surface of the fixed-side shaft tube or the movable-side shaft tube corresponding to the outer peripheral surface, for moving the movable-side shaft tube to a door stop side of the door frame when the door is rotated in a closing direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a hinge, and more particularly to a technique for reducing a gap between a door-side end of a door and a door stop of a door frame when the hinged door is closed.

  When the door of the hinged door is attached to the door frame, a hinge in which a pair of hinge pieces including a blade plate and a shaft tube are connected by a shaft bar is generally used.

  The following Patent Document 1 discloses a hinge that reduces a gap between a closed door-side end of a closed door and a door stop of a door frame. Such a hinge is such that when the door is closed, the engaging piece 124 and the receiving piece 134 provided on the blade plate are engaged, and the hinge piece attached to the door side is pulled to the door-end side of the door frame. Therefore, the gap between the door and the door stop is reduced. Further, when the door is opened, the door-side hinge piece is pushed back to the original position by the biasing body 20 arranged in the shaft cylinder of the hinge piece attached to the door frame side.

Japanese Patent Laid-Open No. 2003-041844

  In the hinge of Patent Document 1, the urging body 20 holds the door-side hinge piece in its original position. Therefore, even when the door is open, if a force greater than the urging force of the urging body 20 is applied to the door, the hinge piece moves within the movable range. Such unintentional movement of the hinge piece is particularly noticeable when the door is heavy.

  In view of the above problems, the problem to be solved by the present invention is that when the hinged door is closed, the gap between the door-side end of the door and the door stop of the door frame can be reduced, and the door is opened. An object of the present invention is to provide a hinge that can reduce unintentional movement of the hinge piece even in a state.

In order to solve the above-mentioned problems, the hinge of the present invention is a hinge for connecting the door to the door frame so as to be openable and closable, and includes a stationary half attached to the door frame side and a movable side half attached to the door side. Body,
A shaft that connects the fixed side half and the movable side half, and the fixed side half has a fixed side shaft cylinder that is a shaft cylinder into which one end side of the shaft body is inserted, The movable-side half has a movable-side shaft cylinder that is a shaft cylinder into which the other end side of the shaft body is inserted, and a part of the outer peripheral surface in the axial direction of the shaft body, and the outer surface corresponding to the outer peripheral surface A cam that moves the movable side barrel to the door stop side of the door frame when the door rotates in the closing direction on the inner circumferential surface of the fixed side barrel or the inner circumferential surface of the movable side barrel. The gist is that the mechanism is formed.

  A cam mechanism is provided on the outer peripheral surface of the shaft body and the inner peripheral surface of the shaft tube, and when the door is rotated in the closing direction, the shaft tube on the door side (and the end of the door on the hanging side) By making it move, the clearance gap between the door suspension edge part and door stop can be made small.

  In addition, the shaft body is integrally rotated in the circumferential direction with the movable-side shaft cylinder by fixing the other end side to the movable-side shaft cylinder, and the shaft body includes the shaft on the one end side. An eccentric portion in which the outer peripheral surface of the body extends in the radial direction is formed, and a guide portion on which the eccentric portion slides is formed on the inner peripheral surface of the fixed-side shaft cylinder corresponding to the eccentric portion. The part and the guide part may be configured to constitute a cam mechanism that moves the movable-side shaft tube toward the door stop side of the door frame when the door rotates in the closing direction.

  Further, between the door contact side surface on the inner peripheral surface of the fixed side shaft cylinder and the one end side of the shaft body, the one end side of the shaft body is in a direction opposite to the door contact side direction. It is good also as a structure provided with the urging member which urges | biases to.

  Further, the shape of the eccentric portion in the circumferential direction is substantially fan-shaped, the shape of the guide portion in the circumferential direction is substantially rectangular, and the other end side of the shaft body is at a central angle portion of the eccentric portion. When the other end side of the shaft body is rotated together with the door, the eccentric portion rotates about the central angle portion, and any one side surface of the radial portion of the eccentric portion moves the guide portion. It is good also as a structure which the said other end side of the said shaft body and the said movable side axial cylinder move to the said door stop side or the opposite side with the said center angle part by sliding.

  In addition, the eccentric portion is a single protrusion extending along the axial direction of the shaft body, and the guide portion has a part in the circumferential direction on the inner peripheral surface of the fixed-side shaft cylinder extending radially outward. The eccentric portion and the guide portion are configured to move the other end side of the shaft body and the movable side shaft tube toward the door stop side when the door approaches the closed position. Also good.

  Further, the inner peripheral surface excluding the guide portion of the fixed-side shaft cylinder has a shape that allows movement of the shaft body in the expected direction and restricts movement in a direction orthogonal to the expected direction. It is also good.

  According to the hinge according to the present invention, when the hinged door is closed, a gap between the door end of the door and the door stop of the door frame can be reduced, and the hinge piece can be removed even when the door is opened. A hinge that can reduce unintended movement can be provided.

It is sectional drawing which shows the structure of the hinge of 1st embodiment. It is the top view which looked at the hinge of 1st embodiment from upper direction. It is explanatory drawing which shows the flow of the door closing operation | movement by the hinge of 1st embodiment. It is sectional drawing which shows the structure of the hinge of 2nd embodiment. It is the top view which looked at the hinge of 2nd embodiment from upper direction. It is explanatory drawing which shows the flow of the door closing operation | movement by the hinge of 2nd embodiment. It is sectional drawing which shows the structure of the hinge of 3rd embodiment. It is sectional drawing which shows the structure of the hinge of 4th embodiment. It is the top view which looked at the hinge of 4th embodiment from upper direction. It is explanatory drawing which shows the flow of the door closing operation | movement by the hinge of 4th embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the “finding direction” refers to the width direction (that is, the left-right direction) when the opening provided in the wall of the building is viewed from the front, and the “look-in direction” refers to such a view. It is a direction orthogonal to the attachment direction, and refers to the direction connecting the room and the outside, that is, the depth direction at the opening of the building. In addition, the “hanging side” refers to the rotation axis side of the door in the hinged door. The term “door stop” as used in the present invention refers to a protrusion provided on the door frame so that the door does not go too far when the hinged door is closed, and when the hinged door is opened, the door is placed at a predetermined position. It does not include so-called door-to-door brackets.

(First embodiment)
FIG. 1 is a sectional view showing the structure of a hinge 10 according to the first embodiment. The hinge 10 is a member that connects the door to the door frame so as to be openable and closable. The hinge 10 is a pair of metal hinge pieces 20 and a movable half 30 and the fixed half 20 and the movable half. 30 and a metal shaft body 40 that is rotatably connected to each other in the circumferential direction. FIG. 1A shows the movable half 30 and the shaft 40 fixed to the movable half 30, and FIG. 1B shows the fixed half 20.

  The fixed side half 20 is a hinge piece attached to the door frame side, and is a member in which the fixed side blade plate 202 and the fixed side shaft cylinder 201 are integrated. The fixed-side blade plate 202 is a blade plate fixed to the opening side surface of one of the vertical frames constituting the door frame, and the fixed-side shaft tube 201 is one end-side shaft portion that is one end side of the shaft body 40. A shaft cylinder 402 is inserted. The fixed-side blade plate 202 is provided with six screw holes 202a for screwing the fixed-side blade plate 202 to the door frame.

  The movable side half 30 is a hinge piece attached to the door side, and is a member in which the movable side blade plate 302 and the movable side shaft tube 301 are integrated. The movable blade 302 is a blade fixed to the side of the door hanging side, and the movable shaft 301 is a shaft into which the other end side shaft portion 401 that is the other end of the shaft body 40 is inserted. It is a cylinder. Similar to the fixed-side blade plate 202, the movable-side blade plate 302 is also provided with six screw holes 302a for screwing the movable-side blade plate 302 to the door.

  The other end-side shaft portion 401 of the shaft body 40 is fixed to the movable-side shaft tube 301 so as not to be removable, so that the shaft body 40 rotates integrally with the movable-side shaft tube 301 in the circumferential direction. An eccentric portion 403 whose outer peripheral surface extends in the radial direction is formed on the one end side shaft portion 402 of the shaft body 40. The eccentric part 403 is formed over the entire range excluding the tip part in the axial direction of the one end side shaft part 402. Moreover, in order to reduce the sliding resistance with the bottom surface of the fixed-side shaft cylinder 201, the tip portion is formed in a spherical surface with a slightly pointed contact with the fixed-side shaft cylinder 201.

  A guide portion 201 a on which the eccentric portion 403 slides is formed on the inner peripheral surface of the fixed-side shaft cylinder 201 corresponding to the eccentric portion 403. Here, “corresponding to the eccentric portion 403” means that the eccentric portion 403 has the same axial position and faces the outer peripheral surface of the eccentric portion 403. Note that the guide portion 201a in the first embodiment is provided not only in the range corresponding to the eccentric portion 403 but also in the entire range in the axial direction of the fixed-side shaft tube 201. This is for simplifying the shape and facilitating processing, and it is not always necessary to provide the entire range in the axial direction.

  2 is a plan view of the fixed half body 20, the movable half body 30, and the shaft body 40 of FIG. 1 as viewed from above. 2A shows the movable-side half 30 and the shaft 40, FIG. 2B shows the fixed-side half 20, and FIG. 2C shows a state in which these members are connected.

  As shown in FIG. 1A and FIG. 2A, the movable side barrel 301 is a cylindrical member, and the other end side shaft portion 401 fixed to the movable side barrel 301 is a cylindrical member. It is. As shown in FIG. 2 (a), the shape of the eccentric portion 403 in the circumferential direction is substantially a fan shape. Connected in the axial direction. On the other hand, the circumferential shape of the guide portion 201a is a substantially rectangular shape with rounded corners as shown in FIG. 2 (b).

  The pivotable range of the hinge 10 is 90 degrees. The arrangement of the fixed-side half 20 and the movable-side half 30 in FIG. 2C is in a state in which the door is fully open, and the arrangement obtained by rotating the movable-side half 30 90 degrees clockwise from here is the door. Is in a closed state.

  FIG. 3 is an explanatory view showing the flow of the closing operation of the door 92 by the hinge 10. In FIG. 3, only the reference numeral is attached to FIG. 3A, and the reference numerals in FIGS. 3B and 3C are omitted (the same applies to FIGS. 6 and 10).

  The door 92 in FIG. 3A is in a fully open state. The eccentric portion 403 in this state is in sliding contact with all four circumferential surfaces of the guide portion 201a by the radius portion 403c and the central angle portion 403a which are both ends of the arc portion 403b. As a result, the movable side cylinder 301 is only allowed to rotate and cannot move in either the direction of finding or the direction of expectation, and unintentional movement of the movable side cylinder 301 is prevented.

  The door 92 in FIG. 3B is in a half-open state. By rotating the door 92 from the fully open state to the half open state, the movable side barrel 301 of the movable side half 30 fixed to the door 92 and the other end side shaft portion 401 fixed to the movable side barrel 301 are provided. Rotate. When the other end side shaft portion 401 rotates, the eccentric portion 403 rotates about the central angle portion 403a to which the other end side shaft portion 401 is connected. As a result, one of the radius portions 403c of the eccentric portion 403 pushes the guide portion 201a, and the other end side shaft portion 401 and the movable side shaft cylinder 301 are moved to the door contact 91a of the door frame 91 together with the central angle portion 403a of the eccentric portion 403. Move to the side. Even when the door 92 is in the half-opened state, the eccentric portion 403 is in sliding contact with all four circumferential surfaces of the guide portion 201a by the arc portion 403b, the radius portion 403c, and the central corner portion 403a. The unintentional movement 301 is prevented.

  The door 92 in FIG. 3C is in a closed state. From the state of FIG. 3B until the door 92 is in the closed state, the eccentric portion 403 continues to move the movable shaft 301 to the door stop 91a side, so that the end portion on the suspension side of the door 92 in the closed state. The gap between the door stop 91a is made small. Thus, the eccentric part 403 and the guide part 201a in the hinge 10 constitute a cam mechanism that moves the movable side barrel 301 toward the door stop 91a when the door 92 rotates in the closing direction.

  As described above, in the hinge 10 of the first embodiment, the eccentric portion 403 is formed over the entire range excluding the tip portion in the axial direction of the one end side shaft portion 402. Accordingly, the force applied to the door 92 is efficiently converted into a force in the moving direction of the movable side barrel 301 and the stress generated in the shaft body 40 is dispersed. Is suppressed (the same applies to second and third embodiments described later).

(Second embodiment)
FIG. 4 is a cross-sectional view showing the structure of the hinge 11 according to the second embodiment. Similarly to the hinge 10 of the first embodiment, the hinge 11 is also composed of a pair of metal hinge pieces 21, a fixed half body 21 and a movable half body 30, and a metal shaft body 41 that connects them. . 4A shows the movable-side half 30 and the shaft 41 fixed to the movable-side half 30, and FIG. 4B shows the fixed-side half 21 and the urging member disposed therein. 50 is shown. In the following description, the same components as those in the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted. Even if the numbers are different, the same purpose as in the first embodiment will be provided. Detailed description of the shape and structure having the purpose is omitted.

  The shaft body 41 includes one end side shaft portion 412 inserted into the fixed side shaft tube 211 and the other end side shaft portion 411 inserted into the movable side shaft tube 301. The other end-side shaft portion 411 of the shaft body 41 is fixed to the movable-side shaft tube 301 so as not to be removable, so that the shaft body 41 rotates integrally with the movable-side shaft tube 301 in the circumferential direction. On the outer peripheral surface of the one end side shaft portion 412 of the shaft body 41, an eccentric portion 413 which is a single protrusion extending in the axial direction is formed. The eccentric part 413 is formed over the entire range excluding the tip part in the axial direction of the one end side shaft part 412. A guide portion 211 a on which the eccentric portion 413 slides is formed on the inner peripheral surface of the fixed-side shaft cylinder 211 corresponding to the eccentric portion 413.

  FIG. 5 is a plan view of the fixed half body 21, the movable half body 30, and the shaft body 41 of FIG. 4 as viewed from above. 5A shows the movable-side half 30 and the shaft 41, FIG. 5B shows the fixed-side half 21, and FIG. 5C shows a state where these members are connected.

  As shown in FIG. 5 (b), the guide portion 211a is a portion of a portion of the fixed-side shaft tube 211 that is substantially elliptical in the circumferential direction and whose circumferential portion is expanded radially outward. It is a circumferential surface. The biasing member 50 disposed inside the fixed-side shaft 211 is constituted by a coil spring 503, a first support portion 501 that supports the coil spring 503, and a second support portion 502. The first support portion 501 is fixed to the door-contacting surface of the fixed-side shaft cylinder 211, and the second support portion 502 is in sliding contact with the outer peripheral surface of the one end-side shaft portion 412 of the shaft body 41, and the urging force of the coil spring 503. The one end side shaft portion 412 is pressed in a direction away from the door stop side.

  The pivotable range of the hinge 11 is 90 degrees. The arrangement of the fixed-side half 21 and the movable-side half 30 in FIG. 5C is in a state where the door is fully opened, and the arrangement in which the movable-side half 30 is rotated 90 degrees clockwise from here is the door. Is in a closed state.

  FIG. 6 is an explanatory view showing the flow of the closing operation of the door 92 by the hinge 11. The door 92 in FIG. 6A is in a fully open state. The eccentric part 413 in this state restricts the movement of the movable side barrel 301 in the door stop 91a side direction by being locked to the guide part 211a. The movement of the shaft body 41 in the other direction is restricted by the inner peripheral surface of the fixed-side shaft cylinder 211. Thereby, the unintended movement of the movable side barrel 301 when the door 92 is fully opened is prevented.

  The door 92 in FIG. 6B is in a half-open state. Even in this state, the eccentric portion 413 and the guide portion 211a do not move the movable side barrel 301 from the original position (do not move it toward the door stop 91a). This avoids the problem that when the movable side barrel 301 is moved to the door stop 91a side early, the hanging side surface of the door 92 interferes with the door stop 91a and the door 92 cannot be closed. Because. Since the movable side barrel 301 in this state is held in its original position by the biasing member 50, when a force stronger than the biasing force of the biasing member 50 is applied to the door 92, the movable side barrel 301 is It will move to the door stop 91a side.

  Thereafter, when the end of the suspending side of the door 92 passes through the end of the door stop 91a, the eccentric part 413 and the guide part 211a move the movable side cylinder 301 toward the door stop 91a (FIG. 3 (c). )).

(Third embodiment)
FIG. 7 is a cross-sectional view showing the structure of the hinge 12 according to the third embodiment. The hinge 12 has a configuration in which the fixed side half 20 and the movable side half 30 of the hinge 10 according to the first embodiment are attached in reverse. In the hinge 12, the shaft 42 is not rotated, but the movable side shaft cylinder 321 (fixed side shaft cylinder 201) is rotated to reduce the gap between the door suspension base end and the door stop. Other configurations, operations, and movement principles are the same as those of the hinge 10.

(Fourth embodiment)
FIG. 8 is a sectional view showing the structure of a hinge 13 according to the fourth embodiment. Similarly to the hinge 10 of the first embodiment, the hinge 13 includes a pair of metallic hinge pieces 23 and a movable side half 30, and these fixed side half 23 and movable side half 30. It is comprised by the metal shaft bodies 43 connected mutually so that rotation in the circumferential direction is possible. 8A shows the movable half 30 and the shaft 43 fixed to the movable half 30, and FIG. 8B shows the fixed half 23 and the urging member disposed therein. 51 is shown.

  The shaft body 43 includes one end side shaft portion 432 inserted into the fixed side shaft tube 231 and the other end side shaft portion 431 inserted into the movable side shaft tube 301. The other end side shaft portion 431 of the shaft body 43 is fixed to the movable side shaft cylinder 301 so as not to be removable, so that the shaft body 43 rotates integrally with the movable side shaft cylinder 301 in the circumferential direction. An eccentric portion 433 having the same shape in the circumferential direction as the eccentric portion 403 of the hinge 10 of the first embodiment is formed on the outer peripheral surface of the one end side shaft portion 432 of the shaft body 43. The eccentric portion 433 is formed only at the proximal end portion in the axial direction of the one end side shaft portion 432. A guide portion 231 a on which the eccentric portion 433 slides is formed on the inner peripheral surface of the fixed-side shaft cylinder 231 corresponding to the eccentric portion 433.

  FIG. 9 is a plan view of the fixed half body 23, the movable half body 30, and the shaft body 43 of FIG. 8 as viewed from above. 9A shows the movable-side half 30 and the shaft 43, FIG. 9B shows the fixed-side half 23, and FIG. 9C shows a state where these members are connected.

  As shown in FIG. 9B, the circumferential shape of the fixed side barrel 231 and the guide portion 231a is the lower side of the fixed side barrel 201 and the guide portion 201a of the first embodiment in FIG. The shape (viewed in the drawing) is extended downward (viewed in the drawing). Thereby, the rotatable range of the movable side half 30 of the hinge 13 is expanded to 180 degrees.

  Further, as shown in FIGS. 8B and 9B, the inner peripheral surface of the portion other than the guide portion 231a in the fixed-side shaft cylinder 231 allows the shaft body 43 to move in the expected direction, And it is set as the shape which controls the movement to a finding direction. This prevents unintentional movement of the movable side barrel 301 in the direction of finding.

  FIG. 10 is an explanatory diagram showing the flow of the closing operation of the door 92 by the hinge 13. The principle that the eccentric part 433 and the guide part 231a of the hinge 13 move the movable side cylinder 301 toward the door stop 91a is the same as that of the hinge 10. On the other hand, the hinge 13 holds the position of the movable side cylinder 301 by the urging member 51 at least in the rotational position of FIG. 10B, and a force stronger than the urging force of the urging member 51 is applied to the door 92. When it is added to, the movable side cylinder 301 will move to the door stop 91a side.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Hinge 20 Fixed side half 201 Fixed side axial tube 201a Guide part 202 Fixed side blade board 30 Movable side half body 301 Movable side axis tube 302 Movable side blade board 40 Shaft body 401 Other end side shaft part 402 One end side shaft part 403 Eccentric part 403a Central angle part 403b Arc part 403c Radius part 50 Energizing member 501 First support part 502 Second support part 503 Coil spring 92 Door 91 Door frame 91a Door contact

Claims (6)

A hinge that connects the door to the door frame so as to be openable and closable,
A stationary half attached to the door frame side;
A movable half attached to the door side;
A shaft that connects the fixed-side half and the movable-side half, and
The fixed-side half has a fixed-side shaft cylinder that is a shaft cylinder into which one end side of the shaft body is inserted
The movable side half has a movable side barrel that is a barrel into which the other end of the shaft is inserted,
The door rotates in the closing direction on a part of the outer peripheral surface in the axial direction of the shaft body, and the inner peripheral surface of the fixed-side shaft cylinder or the inner peripheral surface of the movable-side shaft cylinder corresponding to the outer peripheral surface. A hinge is formed, wherein a cam mechanism is formed to move the movable side cylinder to the door stop side of the door frame when moved. The shaft body is integrally rotated in the circumferential direction with the movable side barrel by fixing the other end side to the movable side barrel.
On the one end side of the shaft body, an eccentric portion in which the outer peripheral surface of the shaft body extends in the radial direction is formed,
A guide portion on which the eccentric portion slides is formed on the inner peripheral surface of the fixed side cylinder corresponding to the eccentric portion,
2. The eccentric portion and the guide portion constitute a cam mechanism that moves the movable-side shaft tube to a door contact side of the door frame when the door rotates in the closing direction. Hinge described in.   The one end side of the shaft body is attached in a direction opposite to the door contact side direction between the door contact side surface on the inner peripheral surface of the fixed side shaft cylinder and the one end side of the shaft body. The hinge according to claim 2, wherein a biasing member is provided. The shape of the eccentric part in the circumferential direction is a substantially fan shape,
The circumferential shape of the guide portion is a substantially square shape,
The other end side of the shaft body is connected to a central angle portion of the eccentric portion,
When the other end side of the shaft body rotates together with the door, the eccentric portion rotates about the central angle portion, and any one side surface of the radial portion of the eccentric portion slides on the guide portion. The hinge according to claim 2 or 3, wherein the other end side of the shaft body and the movable side shaft tube move to the door stop side or the opposite side thereof together with the central angle portion. . The eccentric portion is a single protrusion extending along the axial direction of the shaft body,
The guide portion includes a portion in which a circumferential portion of the inner peripheral surface of the fixed-side shaft cylinder is expanded radially outwardly,
3. The eccentric portion and the guide portion move the other end side of the shaft body and the movable-side shaft tube toward the door stop side when the door approaches the closed position. Or the hinge of Claim 3.   The inner peripheral surface excluding the guide portion in the fixed-side shaft cylinder has a shape that allows movement of the shaft body in the expected direction and restricts movement in a direction orthogonal to the expected direction. The hinge according to any one of claims 2 to 5.

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