JP2008303532A - Two-shaft hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-shaft hinge capable of surely securing a high degree of sealing by being applied to a door of vacuum equipment etc. in a wide range. <P>SOLUTION: This two-shaft hinge comprises: a fixed blade member 2 which is fixed to a casing 1; a movable blade member 11 which is fixed to the door 20; and a connecting blade member 5 for connecting both the blade members 2 and 11 together. The one-end side of the connecting blade member 5 is pivotally attached to the fixed blade member 2 by means of a first pivot 9, and the other-end side thereof is pivotally attached to the movable blade member 11 by means of a second pivot 14. The connecting blade member 5 and the movable blade member 11 are provided with first and second opposed portions 6b and 13a facing each other in the closed state of the door 20, respectively. An adjusting member 16 for adjusting a distance between both the opposed portions 6b and 13a in the closed state of the door 20 by being interposed between both the opposed members is provided between the first and second opposed portions 6b and 13a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a biaxial hinge used for a sealing door such as various vacuum devices, and in a closed state of the door, a packing interposed between the door and the housing in cooperation with the tightening device is provided. It relates to those that are compressed evenly to provide a good hermetic condition.

  In the housing of the vacuum device, the internal space and the external space must be shut off with high airtightness in order to maintain a good vacuum state. In order to secure this sealing function, a packing made of plastic or rubber is mounted between the housing and the door, and the packing is compressed by a tightening device when the door is closed.

  The hinge includes a fixed single-axis hinge (see Patent Document 1) in which a single rotation center axis does not move with respect to the housing, and a movable multi-axis hinge having a fixed pivot and one or more movable pivots ( However, when a fixed single-axis hinge is used, the door does not abut against the entire circumference of the packing at the final stage of the closing operation of the door. Sometimes the packing part closer to the hinge is pre-compressed, so the packing part adjacent to it may swell or twist, and the door will not close completely or the desired degree of sealing cannot be ensured. Sometimes.

In the movable double-shaft type hinge, the door moves substantially in parallel toward the receiving frame of the housing at the final stage of closing, and evenly contacts the packing, so that the packing is compressed and deformed almost uniformly over the entire area. The biaxial hinge described in Patent Document 2 is controlled so as not to cause unnecessary relative rotation between the hinge bodies, and allows the relative angle of the hinge bodies to vary to such an extent that no gap is generated. That is, the fixed hinge body fixed to the housing is pivotally attached to the connection hinge body by the first shaft member, and the movable hinge body fixed to the door is pivotally attached to the connection hinge body by the second shaft member. The abutment portion of the movable hinge body and the abutment portion of the connection hinge body contact each other to stop rotation in one direction at a predetermined angle, so that the movable hinge body and the connection hinge body are unnecessary relative to each other. It is controlled not to cause rotation. However, since the relative rotation angle is fixed, there is a difficulty in that the applicable structure and dimensions of the housing are limited. Therefore, conventionally, it is necessary to individually cope with each apparatus, such as designing a hinge for each apparatus or processing a pivotal bearing hole into an elliptical hole.
Japanese Patent No. 2546780 JP 2007-56515 A

  The object of the present invention is applied to doors of a wide range of vacuum devices and the like so that the doors can be uniformly abutted over the entire circumference of the packing, and the packing can be made to a required thickness by tightening by the subsequent tightening device. It is possible to provide a biaxial hinge that can be compressed evenly and can securely hold the door in an appropriate closed position.

  In the present invention, in order to solve the above problems, the fixed wing member 2 fixed to the housing 1, the movable wing member 11 fixed to the door 20, and the connecting wing member for connecting the two wing members 2 and 11 together. 5 to constitute a biaxial hinge. One end of the connecting wing member 5 is pivotally attached to the fixed wing member 2 by the first pivot 9, and the other end is pivotally attached to the movable wing member 5 by the second pivot 14. The connecting wing member 5 and the movable wing member 11 are provided with a first facing portion 6b and a second facing portion 13a that face each other in the door opening / closing direction when the door 20 is closed. An adjusting bolt for adjusting the distance between the opposing portions 6b and 13a in the closed state of the door 20 by being interposed between the opposing portions between the first opposing portion 6b and the second opposing portion 13a. An adjustment member 16 such as 17 is provided.

  The adjustment member 16 includes an adjustment bolt 17 that is screwed into a screw hole 6 a provided in the first facing portion 6 b of the connecting blade member 5. The adjusting bolt 17 is moved from the connecting blade member 5 to the movable blade member. It can be made to project to 11 side and the said projecting dimension can be adjusted.

The screw hole 6 a of the connecting blade member 5 penetrates the connecting blade member 5, has one end opened to the front side that is the opening direction of the door 20, and the other end is the second of the movable blade member 11 in the closed state of the door 2. The adjustment bolt 17 can be adjusted from the opening on one end side of the screw hole 6a.
The adjustment member 16 is further provided with a set screw 18 screwed into the screw hole 6a so as to be able to contact one end of the adjustment bolt 17 located in the screw hole 6a. The tool engagement hole 17c can be provided, and the set screw 18 can be attached and detached and adjusted from one end side of the screw hole 6a.
Although the description has been given with reference to the reference numerals in the accompanying drawings, the present invention is not limited thereto.

  In the biaxial hinge of the present invention, the opposed portion 13a of the movable wing member 11 and the opposed portion 6b of the connecting wing member 5 in the closed state of the door 20 are individually adapted to the structure and dimensions of the case to be applied. The distance between them is adjusted by the adjusting member 16. Therefore, a single type of hinge can be applied to the door 20 of a wide range of vacuum devices and the like to contribute to reliable sealing.

  The adjustment member 16 is composed of an adjustment bolt 17 that is screwed into a screw hole 6a provided in the facing portion 6b of the connection blade member 5, and the adjustment bolt 17 is projected from the connection blade member 5 to the movable blade member side 11, If the projecting dimension can be adjusted, the adjusting operation is easy, and the adjusting member can be made small and simple.

  If the screw hole 6a is passed through the connecting wing member 5 and the adjustment bolt 17 can be adjusted from the opening on one end side of the screw hole 6a, the adjustment operation can be performed more easily with the door 20 in the closed position. be able to.

  If the adjusting member 16 is further provided with a set screw 18 that can come into contact with one end of the adjusting bolt 17, the adjusting operation can be easily performed, and the loosened adjusting bolt 17 can be surely stopped and the door can be improved. It is possible to maintain an airtight state.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a biaxial hinge according to the present invention, in which a door is in a closed position. 2 is a plan view of the biaxial hinge of FIG. 1, FIG. 3 is a front view of the biaxial hinge of FIG. 1 with a part cut away, FIG. 4 is a sectional view taken along line IV-IV in FIG. It is an expanded sectional view of a part.

  In the illustrated embodiment, the fixed wing member 2 fixed to the housing 1 is formed of a metal material, and includes a main body 3 having a bolt hole 3a and a pair of upper and lower bearing portions 4 protruding sideways from the main body 3. . A shaft hole 4a passes through the upper and lower bearing portions 4 on the same vertical line. The fixed wing member 2 is fastened and fixed to the door receiving frame portion of the housing 1 by a bolt 10 passing through the bolt hole 3a.

  The connecting wing member 5 formed of a metal material has a main body portion 6 and two pairs of bearing tube portions 7 and 8. The main body 6 has a substantially rectangular plate shape and has a vertical width that can be inserted between the pair of upper and lower bearing portions 4 of the fixed wing member 2. The bearing tube portions 7 and 8 are provided at the four corners of the main body portion 6. That is, a pair of upper and lower bearing cylinder portions 7 is formed on the base end side of the main body 6, and a pair of upper and lower bearing cylinder portions 8 is formed on the distal end side. The pair of upper and lower bearing cylinder portions 7 and 8 are respectively provided with shaft holes 7a and 8a on the same vertical line. The bearing tube portion 7 is continuous with the bearing portion 4 of the fixed wing member 2. At the center of the main body 6, a screw hole 6 a is provided that penetrates in the front-rear direction, which is the door opening / closing direction.

  The first pivot shaft 9 is inserted into the bearing portion 4 of the fixed wing member 2 and the bearing tube portion 7 of the connecting wing member 5, whereby the connecting wing member 5 is pivotally attached to the fixed wing member 2.

  The movable wing member 11 fixed to the door 20 is formed of a metal material, and has a pair of upper and lower bracket portions 12 and a connecting portion 13 that couples the bracket portions 12 together. Between the upper and lower bracket parts 12, the leading end side of the connecting wing member 5 can be received. A shaft hole 12 a passes through both bracket portions 12 on the same vertical line, and is continuous with the shaft hole 8 a of the bearing tube portion 8 of the received connecting blade member 5. The second pivot 14 is inserted into the bracket portion 12 of the movable wing member 11 and the bearing tube portion 8 of the connecting wing member 5, whereby the movable wing member 11 is pivotally attached to the connecting wing member 5. The movable wing member 11 is fastened and fixed to the door 20 by bolts 15 passing through the four bolt holes 12 b of the bracket portion 12.

  The connecting portion 13 of the movable wing member 11 is vertically cut in the vertical direction with an interval on the door side of the main portion 6 of the connecting wing member 5 when the door 20 is closed. The main portion 6 of the connecting wing member 5 and the connecting portion 13 of the movable wing member 11 are formed with first and second facing portions 6b and 13a that face each other in the door opening / closing direction. Therefore, one end side of the screw hole 6a of the connecting blade member 5 opens to the center surface (side surface opposite to the door) of the connecting blade member 5, and the other end side opens to the first facing portion 6b (door side surface).

  An adjustment member 16 for adjusting the distance between the facing portion 13 a of the movable wing member 11 and the facing portion 6 b of the connecting wing member 5 in the closed state of the door 20 is provided on the connecting wing member 5. In this embodiment, the adjustment member 16 includes an adjustment bolt 17 and a set screw 18 that are screwed into a screw hole 6 a provided in the connecting blade member 5. The adjustment bolt 17 has a large-diameter head portion 17a and a shaft portion 17b, and is screwed into the screw hole 6a from the back side of the connecting blade member 5 so that the head portion 17a is disposed on the connecting portion 13 side. . A square hole 17c for tool engagement is formed at the tip of the shaft portion 17b screwed into the screw hole 6a. The projecting length of the adjusting bolt 17 can be adjusted by engaging a tool with the square hole 17c from the front side of the connecting blade member 5. The set screw 18 is screwed into the screw hole 6 a from the front side of the connecting blade member 5, and the tip of the set screw 18 comes into contact with the tip of the adjustment bolt 17 to prevent the adjustment bolt 17 from loosening.

  By adjusting the protruding length of the adjustment bolt 17, the relative angle between the connecting blade member 5 and the movable blade member 11 in the closed state of the door 20 is finely adjusted. Thereby, the pressing angle of the door 20 with respect to the packing can be finely adjusted, the lifting of the door 20 due to the reaction force of the packing can be surely prevented, and a high sealing degree can be ensured. A suitable relative angle between the connecting wing member 5 and the movable wing member 11 is slightly different depending on the device to be applied. However, by adjusting the adjusting bolt 17, it can be applied to a door of a wide range of equipment such as a vacuum device by using one kind of hinge. can do. The adjustment operation can be easily performed in a state where the door is placed at the closed position, and the adjustment member 16 can be configured to be small and simple.

  6 and 7 show a biaxial hinge according to another embodiment. 6 is a front view, and FIG. 7 is a cross-sectional view. In the figure, the same components as those of the previous embodiment are denoted by the same reference numerals and description thereof is omitted.

  The biaxial hinge of this embodiment supports a heavy door 20 with a plurality of connecting blade members 5 and a movable blade member 11. The fixed wing member 2 fixed to the housing 1 is divided into a pair of upper and lower 2 a and 2 b, each having a main body 3 and a bearing portion 4. A long first pivot 9 is supported between the upper and lower bearings 4, and a plurality of connecting blade members 5 are pivoted on the pivot 9. The connecting wing member 5 is fixed in the axial direction by setting a position on the pivot 9 with a set collar 19. A movable wing member 11 is pivotally attached to each connecting wing member 5 by a second pivot 14 and fixed to a door 20 by a bolt 15. As a result, the plurality of connecting wing members 5 and the movable wing member 11 are rotated synchronously on the first pivot 9, contributing to a smooth opening / closing operation of the door 20.

It is a front view of the biaxial hinge concerning the present invention. It is a top view of the biaxial hinge of FIG. It is the front view which notched a part of biaxial hinge of FIG. It is IV-IV sectional drawing in FIG. FIG. 2 is an enlarged cross-sectional view of a part of the biaxial hinge of FIG. 1. It is a front view of the biaxial hinge which concerns on other embodiment of this invention. FIG. 6 is a cross-sectional view of the biaxial hinge of FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Fixed wing member 3 Main body 3a Bolt hole 4 Bearing part 4a Shaft hole 5 Connecting wing member 6 Main part 6a Screw hole 6b Opposing part 7 Bearing cylinder part 7a Shaft hole 8 Bearing cylinder part 8a Shaft hole 9 1st pivot 10 Bolt 11 Movable blade member 12 Bracket portion 12a Shaft hole 12b Bolt hole 13 Connecting portion 13a Opposing portion 14 Second pivot 15 Bolt 16 Adjusting member 17 Adjusting bolt 17a Head portion 17b Shaft portion 17c Square hole 18 Set screw 19 Set collar 20 door

Claims (4)

A fixed wing member fixed to the housing; a movable wing member fixed to the door; and a connecting wing member that connects the fixed wing member and the movable wing member. The pivot is pivotally attached to the fixed wing member and the other end is pivotally attached to the movable wing member by a second pivot.
The connecting wing member and the movable wing member each have a first facing portion and a second facing portion that face each other in the door opening and closing direction in the closed state of the door,
An adjusting member is provided between the first facing portion and the second facing portion to adjust the distance between the facing portions in the closed state of the door by being interposed between the facing portions. A biaxial hinge characterized by The adjustment member includes an adjustment bolt that is screwed into a screw hole provided in a first facing portion of the connecting wing member;
2. The biaxial hinge according to claim 1, wherein the adjustment bolt protrudes from the connecting blade member toward the movable blade member, and the protrusion dimension can be adjusted. The screw hole of the connecting wing member passes through the connecting wing member, and one end opens to the front in the opening direction of the door, and the other end faces the second facing portion of the movable wing member in the closed state of the door. And provided to open,
The biaxial hinge according to claim 2, wherein the adjustment bolt can be adjusted from an opening on one end side of the screw hole. The adjustment member further includes a set screw that is screwed into the screw hole so as to be able to contact one end of the adjustment bolt located in the screw hole.
The adjustment bolt has a tool engagement hole at one end,
The biaxial hinge according to claim 3, wherein the set screw is attachable / detachable and adjustable from one end side of the screw hole.

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