JP2005350993A - Pivot hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a pivot hinge which houses a means for easily attaching/detaching a pivot fitting of the pivot hinge to/from a receiving fitting, which pivot hinge is for fitting a door to a door mounting opening like a frontage in a pivotally openable and closeable manner. <P>SOLUTION: The pivot hinges 8, 9 are mounted at a protruding position to connect the door 1 and a door mounting frame 2 in a manner that the door 1 is pivotally openable and closeable. A retreating means 20 for a pivot 4e retreatingly displaces the pivot 4e of at least a pair of pivot fitting 4 and a receiving fitting 6 toward the inside of a pivot case 4d against an urging spring means 25. The retreating means 20 is provided in an outer case 11 so that the pivot retreating means 20 may be operated from the outside of the outer case 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention can always hold the door pivoting open / close with respect to the door mounting frame smoothly and stably over a large opening / closing angle, and at the same time efficiently accomplish the work of mounting and removing the door with respect to the door mounting frame. It relates to a pivoting hinge mainly applied to hinged doors.

  In order to open and close the door with a large opening at the entrance and exit of the partition area by the frontage of the building and the panel member, a pivot hinge that pivotally supports the door around the vertical axis has been used in many cases. In order to allow the door to be opened from the closed state to 180 degrees around the vertical axis, the hinge shaft position where the pivot hinge shaft member and the receiving hole member are engaged as a door support is pushed forward of the door. The thing is used a lot recently.

  Such pivot hinges are required to be able to easily adjust the position of the door in order to ensure smooth opening and closing operations with the door attached to the door frame. In order to increase the efficiency of door installation and removal work when there are many entrances and exits in buildings and partition areas, it is necessary to provide an easy-to-operate operation means that simplifies the door removal and installation.

  Regarding the former door position adjusting means, the applicant has already received the shaft member of the upper pivot hinge provided at the upper part of the door and the lower pivot hinge provided at the lower side of the door in Japanese Patent Application No. 2003-059502. We propose and provide holes that can be adjusted to the left and right by adjusting the left and right adjustment screws along the door surface, and the door mounting position can be adjusted to the left and right when the door is closed.

  Japanese Patent Laid-Open No. 9-209641 has a hinge movable member with a built-in spherical body for facilitating attachment and position adjustment, and smoothing the operation after attachment, and the movable member is attached with an orthogonally arranged adjustment screw or the like. By adopting a pivot hinge structure that supports the door-side body by covering the spherical body with an inner ring that is adjusted by the support adjustment screw of the adjustment member that is also arranged inside the hinge while being adjustable in plane. Since the three-dimensional position can be adjusted by using two adjustment screws, the one that simplifies the operation of attaching the hinge to the door or door frame is disclosed.

However, the above-mentioned conventional pivot hinge has a spherical member inside, thereby ensuring the three-dimensional position adjustment function of the pivot hinge, and having a spherical contact portion, so that the pivot hinge is located at two locations apart from the door. Although there is an advantage that the mounting work can be facilitated even when mounting, the structure with the spherical body as the main member is likely to increase the cost of the pivot hinge, and therefore, more cost-effective mounting and removal are easy. There is a need to provide a pivot hinge that is provided as a means and has a structure that allows the operator to feel the convenience of installing and removing the door.
Japanese Patent Laid-Open No. 9-209641

  Therefore, according to the present invention, in the pivot hinge for opening and closing the door with respect to the door frame, the engagement attachment and the disengagement between the hinge pivot shaft member and the receiving hole member can be easily performed by an external operation. We will provide a pivot hinge for the door with a built-in means that can simplify the installation and removal between the door and the door frame.

  In order to solve the above-described problems, the present invention provides a pivot shaft having a pivot portion at one end and a washer portion at the other end in a shaft case so that the pivot shaft can be moved in and out in a predetermined axial direction. A shaft bracket having a mounting body attached to the shaft main body or the outer case, and housing a shaft main body formed by inserting a spring means that always urges from one end of the shaft case toward the protruding direction. And a pair of receiving brackets for receiving the pivot portion of the pivot shaft of the shaft bracket, and the two sets of the upper end region and the lower end region of the door and the door frame. In a pivot hinge provided between each corresponding door attaching portion and arranged for door opening / closing operation around the shaft center, at least the pair of shaft fittings and the pivot shafts of the receiving fittings. Above axis case A pivot shaft retracting means for retracting and displacing the biasing spring means toward the inside is provided in the outer case, and the pivot shaft retracting means is configured to be operable from the outside of the outer case. A pivoting hinge characterized by the above is provided.

  With the pivot hinge having the above-described configuration, when the door is attached to, for example, the door mounting frame at the front of the building, or when the door is removed as desired, the pivot hinge retracting means is provided in the pivot hinge. The retraction displacement means is actuated by an ordinary driver tool or the like from an operation opening provided in advance in the outer case of the pair of shaft bracket and receiving bracket, and the pivot portion of the pivot shaft is directed toward the inside of the shaft case. When the door is mounted, the pivot shaft receives the return force from the biasing spring when the tool is removed after visually aligning the axis of the pivot shaft to the pivot receiving hole of the bracket when the door is installed. Projects into and engages with the pivot receiving hole. Also, when the door is removed, if the pivot part of the pivot shaft is retracted by the retraction displacement means and the door is pulled out from the door mounting frame, the pivot hinge shaft bracket and the receiving bracket can be easily separated. The door can be removed. That is, there is an effect that the operator can easily perform the attaching / detaching operation of the door with respect to the door mounting frame as desired from the outside.

  Preferably, the retraction displacement means of the pivot shaft includes a toothed operating plate provided with one end locked to the washer portion of the pivot shaft and movable integrally with the pivot shaft outside the shaft case, and And a drive wheel meshed with the teeth of the operation plate, and by operating the drive vehicle from the outside of the outer case through an operation hole formed in the drive vehicle, together with the operation plate The pivot portion of the pivot shaft is configured to be displaced backward.

  Provided with such a toothed actuating plate and a pivot shaft retraction means constituted by a drive wheel meshing with the teeth, the drive wheel is operated from the outside so as to retreat and displace the pivot shaft together with the actuating plate. In this case, by introducing a mechanical element having a small number of parts, a means for driving the movement displacement in the axial direction of the pivot shaft and simplifying the door attaching / detaching operation is realized.

  Preferably, the operating plate has an inner tooth rack portion, pinion teeth that mesh with the inner tooth rack portion are formed in the driving wheel, and a tool insertion hole is formed in the driving wheel as the operation hole. It is set as the formed structure. In this way, the operation plate and the pinion wheel can be easily and inexpensively manufactured by a mechanical manufacturing method, for example, an electric discharge machining method using an electrode type or a wire electrode that is frequently used recently.

  Furthermore, it is preferable that the outer case has a configuration in which a tool can be inserted from the outside into a tool insertion hole formed as a positive screw hole or the like of the driving wheel and can be closed.

  The outer case of the shaft bracket allows the tool to be inserted from the outside into the tool insertion hole of the drive vehicle described above, and if the opening has a closable opening, the opening formed in the outer case is For example, if it is closed with a screw cap, etc. after the work is completed, dust can be prevented from entering the inside of the pivot hinge from the outside, and the appearance can be kept beautiful. An effect of preventing mischief and the like will also be exhibited. Hereinafter, the present invention will be described in more detail according to preferred embodiments shown in the accompanying drawings.

The embodiments of the present invention described below are merely typical preferred embodiments, and it goes without saying that the present invention is not limited thereto.
Now, FIG. 1 schematically shows an exemplary embodiment in which a pivot hinge according to the present invention having a door pivot axis is provided at a position protruding from the upper end region and the lower end region of the door with respect to the door mounting frame. 2 is a perspective view of the main part of the door shown in FIG. 2, and FIG. 2 is a perspective view showing the pivot metal hinge of the present invention shown in FIG. FIG. 3 is an exploded perspective view of the shaft fitting shown in FIG. 2, and FIGS. 4A and 4B are front views showing the shape and structure of a pinion drive vehicle that constitutes the retracting means of the pivot portion. It is a figure and a side view.

  Note that the upper and lower pivot hinges shown in FIG. 1 are both shown with the shaft metal fitting and the receiving metal fitting disengaged, and the door is kept floating in the air with respect to the door mounting frame. However, this is merely shown for the purpose of clarifying the structures of the upper and lower shaft brackets and the brackets. Therefore, it can be understood that when both the upper and lower pivot hinges are engaged, the door can be attached to the door mounting frame with almost no gap or while securing a desired upper gap or lower gap.

  In the embodiment described above, the pivot hinge 8 attached to the upper end region of the door 1 is formed as the shaft bracket 4 having the pivot shaft retracting means according to the feature of the present invention described in detail below, and the lower end of the door 1 is formed. As for the pivot hinge 9 attached to the partial area, the case where the pivot shaft retracting means as described above is not provided is shown.

  First, when looking at the pivot shaft hinge 9 spanned between the lower end region of the door 1 and the door mounting frame 2 to the projecting position, the shaft fitting 5 is located at the projecting position of the door mounting frame 2, for example, the floor surface. It is fixed to the screw bolts 5a and 5a via a mounting washer 5b and has a pivot shaft 5c. Further, the receiving metal fitting 7 corresponding to the shaft metal fitting 5 is fixed to the lower end region of the door 1 by screw bolts 7a and 7a via the washer part 7b, and the pivot part of the shaft metal fitting 5 is attached to the tip part of the axle box part 7c. A receiving hole member 7d into which the shaft 5c enters and is received is incorporated. When the door 1 is mounted, the pivot shaft 5c is fitted into a receiving hole (not shown in the figure) of the receiving hole member 7d, and the opening / closing operation by the rotation of the door 1 around the axis of the pivot shaft 5c is allowed. It has become.

  Here, since the pivot shaft 5c of the shaft metal fitting 5 is provided in a state of being fixed in the axial direction as well as in the left and right front and rear, the receiving hole member 7d of the metal fitting 7 is provided in a portion not shown. For example, the center of the pivot shaft 5c and the center of the receiving hole are adjusted by the adjusting means so as to be concentric when the door 1 is completely installed. For example, the adjusting means disclosed in Japanese Patent Application No. 2003-59502 by the present applicant is adjustable. Just understand.

  On the other hand, when the pivot shaft hinge 8 spanned to the protruding position between the upper end region of the door 1 and the door mounting frame 2 is seen, the receiving metal 6 is attached to the side of the door mounting frame 2 by the screw bolt 6a and the mounting washer 6b. At this time, the axle box portion 6c is located at the protruding position, and a shaft receiving hole member 6d is provided at the distal end portion of the shaft box portion 6c. It has a structure that has a hole and receives the pivot shaft on the shaft bracket 4 side.

  The shaft bracket 4 facing the receiving bracket 6 is configured to be fixed and attached to the upper end surface of the door 1 by a screw bolt 4a via a mounting washer 4b. In this case, the mounting washer 4b is configured to be able to substantially ensure concentricity with the shaft metal fitting 4 by being mounted at a preset or predetermined position of the door mounting frame 2.

  In addition, the shaft fitting 4 has a mounting washer 4b fixed to the upper end surface of the door 1 with a mounting screw bolt 4a and a positioning pin 4c, and a shaft case 4d is held at the tip of the mounting washer 4b. The shaft case 4d is provided with a pivot shaft 4e, and the distal end of the pivot shaft 4e forms a pivot portion 4f to enter and engage with the receiving hole member 6d of the receiving metal fitting 6 as described later. It is the structure which enables one pivoting rotation.

  Here, the shaft case 4d of the shaft bracket 4 is housed in the outer case 11, and the pivot portion 4f of the pivot shaft 4e is disposed between the outer case 11 and the shaft case 4d in the axial direction. Means are provided that can displace in two directions: a direction of projecting displacement toward the metal fitting 6 and a direction of retreat displacement from the projecting state. That is, the means for retracting displacement of the pivot shaft 4e, which is a feature of the present invention, is provided, and the detailed configuration thereof will be described in detail with reference to FIGS.

  Here, referring to FIG. 1 again, the outer case 4 is adjusted so that the shaft center of the pivot portion 4f of the pivot shaft 4e is aligned with the receiving hole member 6d of the metal fitting 6 via the shaft case 4d described above. As a means, an operating hole 11a is provided for adjusting and displacing the shaft case 4d from the outside of the outer case 11 through a screw bolt to ensure the concentric state, and an adjusting operation is executed from the outside of the outer case 11. However, what is necessary is just to understand that the detailed structure is disclosed by the above-mentioned applicant's Japanese Patent Application No. 2003-59502.

  The outer case 11 is also provided with an operation hole 11b for operating the backward displacement of the pivot shaft 4e, and can be operated using, for example, a driver tool 30 shown in the figure. In addition, if necessary, the former operation hole 11a and the latter operation hole 11b are configured in advance with a screw hole structure, and a configuration is provided in which these operation holes 11a and 11b can be closed with a screwed lid 40 from the outside. May be.

  Referring now to FIG. 2, there is shown a perspective perspective view of the pivot hinge 8 provided in the upper end region of the door 1 described above. As can be understood from FIG. Is projected to the position of the illustrated projecting state by receiving a pressing force of an urging spring, which will be described later, and on the other hand, the pivot portion of the pivot shaft 4e is projected between the shaft case 4d and the outer case 11. Retraction displacement means 20 is provided for reversing displacement of 4f toward the inside of the shaft case 4d.

The backward displacement means 20 is provided between the shaft case 4d and the outer case 11, and the configuration thereof will be described in detail with reference to FIG.
That is, FIG. 3 shows the shaft bracket 4 in an exploded view.
2 and 3, in the shaft case 4d, the pivot shaft 4e includes a shaft cylinder 4h continuous with the pivot portion 4f and a spring seat 4j formed on a part of the shaft cylinder 4h. Further, a washer portion 4g is provided at the lower end extending through the bottom surface of the shaft case 4d. An urging spring 25 is disposed between the inner bottom surface of the shaft case 4d and the above-described spring seat 4j to press and urge the pivot shaft 4e toward the outside of the shaft case 4d. The pivot portion 4f is projected and biased toward the receiving hole member 6d side of the mating receiving metal fitting 6.

The shaft case 4d is surrounded and held by the left and right arms 14a and 14a (only one of which appears in FIG. 2) and the lower plate 14b of the box-shaped bracket 14 formed by the extension of the mounting washer 4b. The tip of the lower plate 14b extends so as to support the outer bottom surface of the shaft case 4d.
On the other hand, a substantially L-shaped actuating plate 21 is provided along the end surface of the shaft case 4d and between the inner wall surface of the outer case 11, and the lateral plate 22 of the actuating plate 21 is below the bracket 14. The vertical plate 23 is provided with a vertical groove 26 in which rack teeth are engraved as internal teeth 24 and is disposed between the plate 14b and the washer portion 4g of the pivot shaft 4e. Then, the meshing position is selected so that the pinion wheel 27 is meshed with the inner teeth 24 of the vertical groove 26 so that the axial position of the pinion wheel 27 is substantially coincident with the axial center of the operation hole 11 b formed in the outer case 11. In the state where the pinion wheel 27 is engaged with the operating plate 21, the pivot portion 4f of the pivot shaft 4e is normally biased from the shaft case 4d by being sandwiched between the outer case 11 and the shaft case 4d. It is arrange | positioned so that it may receive the spring urging | biasing force of 25 and may maintain a protrusion state.

  The detailed structure of the pinion wheel 27 is shown as a front view and a side view in FIGS. 4 (a) and 4 (b), and has a pinion tooth 28 that meshes with the internal teeth 24 of the operating plate 21 and an operating port 30. And a cylindrical portion 29. When the pinion wheel 27 is rotated from the outside with an appropriate tool or the like through the operation hole 11b of the outer case 11, an appropriate tool such as a screwdriver is inserted into the operation port 30 to reduce the backward displacement of the pivot shaft 4e. It is what is started. The above-described retraction displacement means 20 of the pivot shaft 4e is configured with the operation plate 21 having the internal teeth 24 and the pinion wheel 27 having the pinion teeth 28 as constituent elements.

  In the pivot hinge according to the embodiment of the present invention having the above-described configuration, when the door 1 is attached to the door mounting frame 2 or the like or when the attached door 1 is removed, the pivot shaft 4e of the shaft bracket 4 in the pivot hinge 8 is attached. The operation plate 21 forming the backward displacement means 20 and the latter pinion wheel 27 of the pinion wheel 27 are operated by rotating and driving an appropriate tool from the operation port 11b of the outer case 11 into the operation port 30. The plate 21 moves in the downward direction of the arrow S in FIG. 3, and accordingly, the pivot portion 4f of the pivot shaft 4e moves backward in the direction indicated by the arrow T toward the inside of the shaft case 4d. Since the receiving hole formed in the receiving hole member 6d maintains a dissociated state, both the operation of attaching the door 1 and the operation of removing the door 1 can be easily performed. 2 and 3, a through-hole 4k formed in the mounting washer 4b is inserted with a screw bolt for fixing the mounting, a positioning pin or the like.

  In the above-described embodiment, the pivot hinge that is retracted and displaced from the position where the pivot shaft protrudes by the biasing spring is provided with the retracting displacement means on the shaft fitting provided in the upper end region of the door, and the upper end of the door. Contrary to this, the shaft bracket is attached to the lower end region of the door, and the pivot bracket retracting means according to the present invention is built in the shaft bracket. It is good also as composition of an embodiment made to do. Furthermore, it is good also as a structure of embodiment which provides the pivot hinge which incorporated the retracting displacement means which concerns on this invention in both the area | regions of the upper-lower-end part of a door as needed.

Door mounting schematically showing an exemplary embodiment with a pivot hinge according to the present invention having a door pivot axis at positions protruding from the upper and lower end regions of the door relative to the door mounting frame A perspective view of the main part, FIG. 1 is a perspective view showing an example of a configuration provided with a pivot hinge retraction means according to the present invention shown in FIG. FIG. 2 is an exploded perspective view of the shaft bracket shown in FIG. (A) and (B) are a front view and a side view showing an example of the structure of a pinion drive vehicle that constitutes a retraction means with a pivot portion.

Explanation of symbols

1: Door
1a: Door surface
2: Door mounting frame
4: Shaft bracket
4a: Screw bolt
4b: Mounting washer
4c: Positioning pin
4d: Shaft case
4e: Pivot axis
4f: Pivot part
4g: Washer
4h: Shaft barrel
4j: Spring seat 4k: Through hole
5: Shaft bracket
5a: Screw bolt 5
5b: Mounting washer
5c: Pivot axis
6: Bracket
6a: Screw bolt
6b: Mounting washer
6c: Shaft box part
6d: receiving hole member
7: Bracket
7a: Screw bolt
7b: Washer part
7c: Shaft box part
7d: receiving hole member
8: Pivot hinge
9: Pivot hinge
11: Outer case
11a: Operation hole
11b: Operation hole
20: Retraction displacement means
21: Actuating plate
22: Horizontal board
23: Vertical board
24: Internal teeth
25: Biasing spring
26: Vertical groove
27: Pinion car
28: Pinion teeth
29: Tube
30: Working port
35: Driver tool
40: Screw cap

Claims (4)

A pivot shaft having a pivot portion at one end and a washer portion at the other end is provided in the shaft case so as to be movable in and out in a predetermined axial direction, and the pivot portion is always attached from one end of the shaft case to the projecting direction side. A shaft metal fitting having a mounting flange attached to the shaft main body or the outer case, and a pivot portion of the shaft metal fitting in the pivot shaft; A pair of receiving brackets for receiving the two, and the two sets are hung between the upper end region and the lower end region of the door and the corresponding door attachment portion in the door frame. In the pivot hinge provided for the door opening and closing operation around the axis,
At least the pair of shaft brackets and the pivot brackets, the pivot shaft retracting displacement means for retracting the pivot shaft toward the inside of the shaft case against the biasing force of the biasing spring means. A pivot hinge provided inside and configured such that the retraction displacement means of the pivot shaft is operable from the outside of the outer case. The pivot shaft retraction means includes a toothed operating plate that is locked to one end of the pivot shaft washer portion so as to be movable integrally with the pivot shaft outside the shaft case; and A drive wheel meshing with teeth, and operating the drive vehicle from the outside of the outer case through an operation hole formed in the drive vehicle, thereby the pivot shaft together with the operation plate. The pivot hinge according to claim 1, wherein the pivot portion can be displaced backward. The said action | operation board has an internal-tooth rack part, The pinion tooth | gear which meshes with this internal-tooth rack part was formed in the said drive wheel, and the tool insertion hole was formed in this drive wheel as the said operation hole. Pivot hinge. 4. The pivot hinge according to claim 3, wherein the outer case has a closable opening that allows a tool to be inserted from the outside into a tool insertion hole of the driving vehicle.

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