JP5219085B2 - Door hinge - Google Patents

Description

  The present invention relates to a door hinge, that is, a hinge that supports a door so as to be openable and closable around a vertical axis with respect to a column or vertical frame.

  The door hinge includes a standard hinge without an auto closer and a hinge with an auto closer. As shown in Patent Document 1, the former is composed of a elbow bracket (armature bracket) fixed to a column or a vertical frame, and a hinge bracket fixed to a door. A pin fixed to the tip of the elbow fitting is inserted into a cylinder provided at the tip of the metal fitting, or a pin attached to the tip of the elbow fitting is inserted into the hinge to support the pin rotatably. On the other hand, as shown in Patent Document 2, the latter includes a elbow bracket fixed to a column or a vertical frame, and a pin fixed to a door and supported by a cylindrical portion provided at the tip of the elbow bracket. It is composed of an auto closer with a coil spring that acts on the door to close the door. When the door is opened, the closing force is accumulated in the coil spring. It is intended to rotate.

Japanese Patent Application Laid-Open No. 11-152953 JP 09-88412 A

  However, in the prior art, the standard hinge inserts the pin of the hinge fitting into the tube portion of the elbow fitting, or the pin fixed to the tip of the elbow fitting passes through the tube portion provided on the hinge fitting, and the pin is centered. The hinges with auto closers need to be mounted so that the closing force of the auto closers applies forces in opposite directions to the door and the elbow bracket and rotates around the pin. For this reason, the number of members that can be used in common for one hinge component is small, and it is necessary to manufacture and prepare a unique component member according to the type of hinge. Accordingly, there are problems that the number of members to be managed is large, management is complicated, and manufacturing costs and storage costs increase.

  Then, an object of this invention is to provide the hinge for doors which can be used for both a standard hinge and a hinge with an auto closer.

  In order to achieve the above object, the present invention provides an elbow fitting having a cylindrical portion fixed to a column or a vertical frame and having a hole with a non-circular cross-sectional shape opened upward at one end, and a cylindrical portion of the elliptical fitting. A bush having a cross-sectional outer shape that prevents relative rotation with the tube portion of the elbow fitting when inserted therein, and a bush having a round hole into which the pin of the hinge fitting of the standard hinge can be rotatably inserted, The cross-sectional shape of the hole in the cylindrical portion of the ovine fitting is the same as the cross-sectional shape of the pin that is applied with the closing force of the auto closer and extends downward from the auto closer (claim 1).

  A preferable example of the present invention is composed of a elbow fitting and a bush for fixing a door hinge to a column or a vertical frame, and the elbow fitting has a non-circular cross-sectional shape in which a cylindrical portion provided at one end thereof opens upward. The bush has a flange portion at the upper end and a cylindrical portion extending downward from the flange portion, and the cylindrical portion of the bush extends downward from the upper surface of the flange. The bush has a cross-sectional outer shape that prevents relative rotation of both tube portions when inserted into the tube portion of the elbow bracket. When the cylindrical portion is inserted into the hole of the cylindrical portion of the elbow bracket, the flange portion is placed on the upper surface of the cylindrical portion of the elbow bracket (claim 2).

  The bush is characterized in that the diameter of the starting end of the hole into which the pin of the hinge fitting is inserted is larger than the diameter of the remaining portion (Claim 3).

  The bush is made of a material having a small friction coefficient (Claim 4).

  The elbow bracket is fixed to a column or vertical frame, or to a pedestal fixed to the column or vertical frame so that the amount taken out to the door side is adjustable (Claim 5).

  The elbow bracket includes an insertion portion that is fixedly inserted and fixed to a pedestal, a bent portion that is bent from one end of the insertion portion, and a cylindrical portion that is provided at the tip of the bent portion. The non-circular hole of the cylinder part penetrates in the vertical direction of the cylinder part, and the insertion part can be inserted into the pedestal in an adjustable manner even if the upper and lower sides are reversed. (Claim 6).

  According to the first aspect of the present invention, the door hinge is composed of the elbow fitting and the bush, so that the number of components is small. The bush has a perfect hole, and has a cross-sectional outer shape that prevents relative rotation between the bush and the hinge bracket when inserted into the cylinder of the elbow bracket. In use, the pin of the hinge fitting can be rotatably inserted into the hole of the bush so that the door having no self-closing force can be opened and closed. In addition, since the bush has a cross-sectional outer shape that prevents relative rotation of both tube portions when inserted into the tube portion of the elbow bracket, a pin having the same cross-sectional shape of the auto closer can be used without using the bush. By inserting into the hole of the cylindrical part of the metal fitting, the door can be supported in a state in which the closing force of the auto closer acts. That is, the hinge of the present invention can be used in common for both a standard hinge and a hinge with an auto closer, only the use / non-use of the bush differs depending on the presence or absence of the auto closer. Therefore, the manufacturing cost and management cost of parts are reduced.

  According to the invention of claim 2, the bush has a flange portion at the upper end portion and a cylindrical portion having a round hole extending downward from the flange portion and extending downward from the upper surface of the flange portion, and the cylindrical portion is It has a cross-sectional outer shape that prevents relative rotation of both cylinder parts when inserted into the cylinder part of the elbow bracket, and when the cylinder part is inserted into the hole of the cylinder part of the elbow bracket, the flange part is Since it is mounted and fixed on the upper surface of the tube portion, the bush can be easily attached to the elbow bracket. When the bush is made of synthetic resin, the flange acts as a washer for the pin of the hinge bracket to reduce the rotational friction of the pin, and the occurrence of metallic noise when the pin rotates together with the bushing cylinder is suppressed. The

  According to invention of Claim 3, the pin of a hinge metal fitting can be easily inserted in the hole of a bush.

  According to invention of Claim 4, the pin of the hinge metal fitting rotatably inserted in the hole of the bush rotates smoothly and without producing metallic noise. Therefore, the door can be opened and closed lightly and quietly.

  According to the invention of claim 5, it is possible to easily adjust the mounting position with respect to the door column or the vertical frame.

  According to the invention of claim 6, one kind of door hinge (elbow bracket and bush) is attached to either the left-handed or right-handed single-open door, to the left or right of the double-open door, and to the outside of these doors. It can be attached to either an opening or an inward opening.

It is a disassembled perspective view which shows one Embodiment at the time of applying the hinge for doors which concerns on this invention to a gate, (a) is a figure which shows the structure at the time of using as a standard hinge, (b) is a hinge with an auto closer It is a figure which shows the structure in the case of using as. It is a front view which shows a part in the case of using as a standard hinge of the hinge for doors which concerns on this invention in a cross section. It is a top view which shows a part of FIG. 2 in a cross section. FIG. 3 is a left side view of FIG. 2. It is a front view in the case of using the hinge for doors concerning this invention as a hinge with an auto closer. FIG. 6 is a sectional view taken along line XX of FIG. 5. It is a front view which shows the state which supported the gate door so that opening and closing was possible at the gate pillar using the door hinge which concerns on this invention.

  Next, an embodiment in which the door hinge according to the present invention is applied to a gate door will be described in detail based on the drawings.

  Describing schematically, the door hinge according to the present invention includes, as shown in FIG. 1 (a), a barnacle fitting 20 and a bush 30 corresponding to a support member as minimum components. When the elbow bracket 20 is fixed to the gate pillar 1 and the bush 30 uses the door hinge according to the present invention as a standard hinge, the hinge bracket 40 attached to the elbow bracket 20 and attached to the gate door 2 is connected via a pin 43. Used to support rotatably. On the other hand, when the door hinge according to the present invention is used as a hinge with an auto closer, as shown in FIG. 1 (b), the bush 30 is not used, and the pin 53 that gives the closing force of the auto closer 50 is provided with the elbow bracket. It is used to support the motor 20 in a state in which it cannot rotate relative to the motor 20. This will be described in detail below.

  Generally, the elbow bracket 20 is attached to the gate pole 1 so that the amount of carry-out adjustment is possible. Various structures are known that can be adjusted so that the carry-out amount can be adjusted, and any of them may be adopted in the present invention. In this specification, only an example will be described. Reference numeral 10 in FIG. 1 denotes a pedestal corresponding to a fixing member for attaching the elbow bracket 20 to the gate pole 1 so that the amount of carry-out adjustment can be adjusted.

  The pedestal 10 has mounting walls 11 and 12 extending upward and downward along a common vertical plane. The mounting walls 11 and 12 are in contact with the mounting surface 1a of the gate column 1 and are formed on the mounting walls 11 and 12, respectively. The fixing screws 11b and 12b are screwed into the holes 11a and 12a, and the gate pillar 1 is fixed to a predetermined position. The pedestal 10 has an upper wall 13 and a lower wall 14 projecting forward from the lower end portion of the mounting wall 11 and the upper end portion of the mounting wall 12, respectively. Further, the base wall 10 continues between the projecting end portions of the upper wall and the lower wall. The front wall 15 is closed and connected to one end of each of the mounting wall 11, the upper wall 13, the front wall 15, the lower wall 14, and the mounting wall 12, and either one of the left and right ends of the base 10 is closed. And has an end wall 16 that is formed in a substantially box shape having a crucible fitting insertion space 17 opened on the back surface of the base 10 and on either the left or right end surface. The shaft portion of the left and right mounting position adjusting screw b1 is inserted into a hole 16a formed so as to penetrate the ovine fitting insertion space 17 at substantially the center in the height direction of the end wall 16, and the hole 16a of the shaft portion is inserted. The left and right mounting position adjusting screw b1 is axially immovable and rotatable by washers 18 and 19 fixed at a position closer to the inner head and at a position closer to the outer head than the hole 16a. Is retained.

  A shallow groove 110 that is long in the left-right direction is formed at a substantially central portion in the height direction of the front wall 15 of the pedestal 10, extends in parallel with the longitudinal direction of the groove at the center of the bottom of the groove, and penetrates the front wall 15. A long hole 111 is formed. The depth of the groove 110 is substantially equal to the height of the head of the fixing screw b3 described later.

  On the other hand, the elbow acupuncture fitting 20 integrally includes an insertion portion 21 having a substantially horizontally long flat plate shape and a cylindrical portion 23 formed at the tip of a bent portion 22 bent from one end portion of the insertion portion. A hole 24 is formed in the upper and lower surfaces. The cross-sectional shape of the hole 24 is a non-true circle. The reason for the non-circular shape is to prevent the pin 53 inserted into the hole 24 from freely rotating so as to be equal to the non-circular cross-sectional shape of the pin 53 of the auto closer 50 described later.

  The other end side of the insertion portion 21 of the elbow bracket 20 is inserted into the elbow bracket insertion space 17 of the base 10 even when the elbow bracket 20 is oriented as shown in FIG. Can be moved to. A first screw hole 25 extending in the longitudinal direction from the end surface is formed on the side surface of the other end of the elbow fitting 20, and penetrates in a direction perpendicular to the longitudinal direction at a substantially central portion in the longitudinal direction of the elbow fitting 20. A second screw hole 26 is formed.

  When attaching the elbow bracket 20 to the pedestal 10, the insertion portion 21 of the elbow bracket 20 is inserted into the elbow bracket insertion space 17 of the pedestal 10, and the shaft tip of the left and right mounting position adjusting screw b 1 is aligned with the first screw hole 25. The screw b1 is rotated in a predetermined direction. Depending on the amount of rotation, positioning of the elbow bracket 20 in the left-right direction can be performed.

  In the second screw hole 26 of the elbow bracket 20, the longitudinal mounting position adjusting screw b <b> 2 is mounted before or after the elbow bracket 20 is stored in the elbow bracket insertion space 17 from the back side of the base 10. Screwed in from the front side.

  Therefore, the front-rear mounting position of the elbow bracket 20 can be adjusted by rotating the front-rear mounting position adjusting screw b2 clockwise or counterclockwise. After the position adjustment, the elbow bracket 20 can be fixed by screwing the fixing screw b3 into the screw hole 112 and pressing the tip of the fixing screw b3 against the insertion portion 21.

  The bush 30 includes an annular flange 31 at the upper end portion and a cylindrical portion 32 extending downward from the flange, and the cylindrical portion 32 is provided with a hole 33 having a perfectly circular cross-sectional shape penetrating in the axial direction. Further, the cross-sectional outer shape of the cylindrical portion 32 is the same as the cross-sectional shape of the hole 24 of the cylindrical portion 23 of the elbow bracket 20, and when the cylindrical portion 32 is inserted into the hole 24 of the cylindrical portion 23, the bush 30 is And fixed in a state where relative rotation is impossible.

  The pedestal 10 to which the eaves fitting 20 to which the bush 30 is attached is fixed is attached to at least two upper and lower portions of the gate pillar 1 with a predetermined interval, and one hole 33 of the upper and lower bushes 30 is located at a predetermined distance from the gate pillar 1. The mounting position of the eaves fitting 20 is adjusted via the left-right direction mounting position adjusting screw b1 and the front-rear direction mounting position adjusting screw b2 so as to exist on the vertical line, and finally fixed temporarily by the fixing screw b3.

  The hinge metal fitting 40 has a leaf 41 and a cylindrical portion 42 connected to one end of the leaf, and a pin 43 that is partially inserted into the cylindrical portion 42 and fixed by a set screw 44. The remaining portion protrudes downward from the cylindrical portion 42. The cross-sectional shape of the pin 43 is a perfect circle that is the same as the hole 33 of the cylindrical portion 32 of the bush 30. Therefore, the pin 43 can be rotatably inserted into the hole 33 of the cylindrical portion 32 of the bush 30.

  The hinge fitting 40 is formed by screwing a fixing screw b4 penetrating the leaf 41 into a screw hole of a screw receiving member 60 formed in an end portion of the vertical frame 2a on one side of the gate door 2 and mounted in the groove. 2 is temporarily fixed. Hinge fittings 40 are attached to the vertical frame 2a of the gate door 2 at least at two locations, the upper portion and the lower portion, with intervals substantially equal to the intervals between the pedestals 10 of the gate pillars.

  The pin 43 of each hinge fitting 40 fixed to the gate door 2 is inserted into the hole 33 of the bush 30 attached to the elbow fitting 20 of each pedestal 10 fixed to the gate pillar 1, and the gate door 2 is suspended. If necessary, the fixing screw b4 is operated to adjust the mounting position so that the bottom surface of the cylindrical portion 42 of the hinge fitting 40 contacts the top surface of the flange 31 of the bush 30. In addition, when the gate is a double door, the upper ends of the left and right gates are aligned on a common horizontal line, and vertical gaps are formed between the butted surfaces of the left and right gates. The adjustment screw b1 and / or the adjustment screw b2 is operated to adjust the left / right and / or front / rear inclination. That is, the left-right direction mounting position adjusting screw b1 is rotated by a required amount in the required direction, and the front-rear direction mounting position adjusting screw b2 is rotated by the required amount in the required direction. Then, the fixing work b3 is finally screwed in and the adjustment work is finished in a state where the elbow fitting 20 is locked. Finally, the retaining screw b5 is screwed into the screw hole 27 provided in the cylindrical portion 23 of the elbow fitting 20, and the screw is fitted into the annular concave groove 44 provided in the pin 43 to prevent the screw. When the cylindrical portion 32 of the bush 30 is long, a through hole may be formed in the cylindrical portion 32 and fitted into the concave groove 44 of the pin 43 from the through hole.

  With the above configuration, the gate 2 is supported by the elbow bracket 20 with a standard hinge attached thereto and the pin 43 of the hinge bracket 40 being rotatable within the hole 33 of the bush 30.

  When the gate 2 is opened and closed, the bush 30 is made of a synthetic resin having a low friction coefficient so that metallic noise is not generated due to contact between the pin 43 of the hinge fitting 40 and the inner peripheral surface of the hole 33 of the bush 30. Or it is desirable to use metal which performed the surface treatment. Further, it is desirable that the diameter of the start end of the hole 33 of the bush 30 into which the pin 43 of the hinge metal fitting is inserted is larger than the diameter of the remaining portion to facilitate insertion.

  When the door hinge according to the present invention is applied to a hinge with an auto closer, it is replaced with one of the hinge fittings of the vertical frame 2a on one side of the gate 2 in FIG. Then, as shown in FIG. 1B, the auto closer 50 is attached. The auto closer 50 includes a leaf 51, a cylindrical portion 52 provided at one end of the leaf, and a pin 53 protruding downward from the lower end of the cylindrical portion, and the hinge fitting 40 is attached to the gate 2. It can be installed in the same way. That is, the fixing screw b4 penetrating through the leaf 51 of the auto closer 50 is screwed and fixed to the screw receiving member 60 'that is mounted in the groove of the vertical frame 2a so as to be movable up and down. The pin 53 is also provided with an annular concave groove 54, and the tip of a retaining screw b5 screwed into the screw hole 27 of the cylindrical portion 23 of the ovine fitting 20 is fitted to prevent the pin 53 from coming off. In the cylinder portion 52 of the auto closer 50, a member that accumulates the closing force and outputs it from the pin 53 when the gate 2 is opened, such as a coil spring, is accommodated. For such an auto closer 50, any known one can be used.

  In the present invention, an important configuration is that the pin 53 has the same cross-sectional shape as the hole 24 of the cylindrical portion 23 of the elbow bracket 20 and when the pin is inserted into the hole 24, the cylindrical portion of the pin 53 is provided. 23 is coupled to a state in which relative rotation is impossible.

  As described above, when the door hinge according to the present invention is applied to a standard hinge, if the bush 30 is attached to the elbow fitting 20, the gate 43 is inserted into the bush 30 by inserting the pin 43 of the conventional hinge fitting 40. When applying to a hinge with an auto closer, the auto closer 50 can be directly attached to the hole 24 of the cylindrical portion 23 of the elbow bracket 20 without attaching the bush 30 to the elbow bracket 20. By simply inserting the pin 53, the gate can be supported so as to be automatically closed by the closing force of the auto closer. That is, as shown in FIG. 7, the door hinge of the present invention can be used in common for both the auto-closer-less hinge 3U and the auto-closer-equipped hinge 3L. In addition, the attachment position of the hinge 3U without an auto closer and the hinge 3L with an auto closer may be either up or down. The difference from the prior art is that the hole 24 of the cylindrical portion 23 of the elbow bracket 20 is made non-circular, and that the bush is provided with a cylindrical portion 32 whose inner shape is a perfect circle and whose outer shape is a non-true circle. Therefore, compared to the conventional technology in which the standard hinge and the hinge with auto closer are each composed of different members, the number of parts is small and manufacturing is easy. Is possible.

  Although only the embodiment in which the present invention is applied to a gate has been described above, the present invention can also be applied to a wing type door other than the gate. In that case, the base 10 is attached to a column or a vertical frame. The mounting position with respect to the door is not limited at all. Further, the elbow bracket 20 may be attached to the pillar or the vertical frame so that the position thereof can be adjusted without using the base 10.

DESCRIPTION OF SYMBOLS 1 Gate pillar 2 Gate 2a Vertical frame 3U Hinge without auto closer 3L Hinge with auto closer 10 Base b1 Left and right direction installation position adjustment screw b2 Front and rear direction installation position adjustment screw b3 Fixing screw
DESCRIPTION OF SYMBOLS 20 Elbow bracket 21 Insertion part 22 Bending part 23 Cylinder part 24 Hole 30 Bush 31 Flange 32 Cylinder part 33 Hole 40 Hinge metal fitting 41 Leaf 42 Cylinder part 43 Pin 50 Auto closer 51 Leaf 52 Cylinder part 53 Pin

Claims (6)

A crucible fitting having a cylindrical portion fixed to a column or vertical frame and having a non-circular hole with a cross-sectional shape opened upward at one end, and a cylinder of the elephant fitting when inserted into the cylindrical portion of the elbow fitting It has a cross-sectional outer shape that prevents relative rotation with the part, and consists of a bush having a round hole in which a pin of a hinge fitting of a standard hinge can be rotatably inserted,
The door hinge is characterized in that the cross-sectional shape of the hole in the cylindrical portion of the elbow bracket is the same as the cross-sectional shape of a pin that is applied with the closing force of the auto closer and extends downward from the auto closer. It consists of an elbow bracket that is fixed to a pillar or vertical frame, and a bush that is detachably attached to the elbow bracket,
The elbow bracket has a non-circular hole with a cross-sectional shape in which a cylindrical portion provided at one end thereof opens upward,
The bush has a flange portion and a cylindrical portion extending downward from the flange portion, and the cylindrical portion of the bush has a perfect circular hole through which a pin of a hinge fitting of a standard hinge can be rotatably inserted. The tube portion of the bush has a cross-sectional outer shape that prevents relative rotation of both tube portions when inserted into the tube portion of the elbow bracket.
When the cylindrical portion of the bush is inserted into the hole of the cylindrical portion of the elbow bracket, the flange portion is placed and fixed on the upper surface of the cylindrical portion of the elbow bracket,
The pin of the auto closer can be inserted in a state in which relative rotation is impossible in the hole of the cylindrical portion of the elbow bracket when the bush is not attached.
A door hinge characterized by that.   3. The door hinge according to claim 1, wherein the bush has a diameter at a start end of a hole into which a pin of the hinge fitting is inserted larger than a diameter of the remaining portion. 4.   The door hinge according to claim 1, wherein the bush is made of a material having a small friction coefficient.   The barnacle fitting is fixed to a column or vertical frame, or to a pedestal fixed to the column or vertical frame so that the amount taken out to the door side is adjustable. A door hinge according to any one of the above.   The elbow bracket has an insertion part that is fixedly inserted and fixed to the pedestal, a bent part bent from one end of the insertion part, and a cylindrical part provided at the tip of the bent part. In addition, the non-round hole of the cylindrical portion penetrates in the vertical direction of the cylindrical portion, and the insertion portion can be inserted into the pedestal in an adjustable manner even when the upper and lower sides are reversed. The door hinge according to any one of claims 1, 2, 3, 4, and 5.

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