JP2007046253A - Hinge mechanism for glass door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge mechanism for a glass door capable of coping with the glass door clearly changing its weight according to the thickness, and capable of setting an opening-closing speed substantially constant even in the glass door of heavy weight and the glass door of light weight. <P>SOLUTION: This self-closable hinge mechanism has a base side metal fitting 1 installed in a vertical frame of the doorway of a building and a door side metal fitting joined to the glass door and rotatably supported to the base side metal fitting 1 by positioning a bearing cylinder part on a bearing cylinder part 6 of the base metal fitting 1, and is formed by incorporating respectively mutually abutting cam members 9 and 10 into the bearing cylinder part 6 of the base side metal fitting 1 and the bearing cylinder part of the door side metal fitting. An upper end inclined cam surface 9b of the cam member 9 incorporated into the bearing cylinder part 6 of the base side metal fitting 1 has an inclined cam surface 9b' of the shallow depth in one side half with a position for vertically dividing the peripheral directional length into two parts as a boundary, and has an inclined cam surface 9b" of the deep depth in opposite side half, and can be freely set so that the direction of the cam member 9 laterally changes in the bearing cylinder part 6 of the base side metal fitting 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hinge mechanism for a glass door.

As a conventional hinge mechanism of this type, there is known a hinge in which a door is self-closed by upper and lower cam-type shaft rings as disclosed in Patent Document 1, for example.
Japanese Utility Model Publication No. 50-46862

  However, although the hinge structure disclosed in the above-mentioned conventional patent document 1 has a function of closing the door by an inclined surface, there is only one kind of speed for closing the door, and the opening / closing speed depends on the difference in the weight of the door. There was a problem that changed. Specifically, for example, when a heavy door is supported, the opening / closing speed is increased, and when a light door is supported, the opening / closing speed is decreased.

  The object of the present invention is to solve such a problem, and can cope with a glass door whose weight changes clearly depending on the thickness, and the opening / closing speed is almost the same even with a heavy glass door and a light glass door. It is to provide a hinge mechanism for a glass door that is constant.

  A hinge mechanism for a glass door according to a first aspect of the present invention includes a base side metal fitting attached to a vertical frame of a doorway of a building, and a glass door that closes the entrance and exit of a bearing tube portion of the base side metal fitting. And a door-side fitting that is rotatably supported by the shaft with respect to the base-side bracket, and the bearing-cylinder portion of the base-side fitting and the bearing-cylinder portion of the door-side fitting are respectively connected to each other. A cam member that comes into contact is built in, and when the glass door is closed, the bottom of the cam member in the bearing tube portion of the base side metal fitting is in contact with the apex portion of the cam member in the bearing tube portion of the door side metal fitting. The cam member is a self-closing hinge mechanism configured such that the two cam members come into contact with each other when the door is open, and is an inclined cam at the upper end of the cam member built in the bearing tube portion of the base side metal fitting. The surface has a circumferential length A half-inclined cam surface on one half and a deep cam surface on the other half on the right-half divide position. It is characterized in that it can be set to change from side to side.

  The hinge mechanism for a glass door according to claim 2, wherein a vertex portion is formed at a boundary portion of the inclined cam surface having a different depth of the base side metal fitting, and a groove is formed at each vertex portion. The apex portion of the inclined cam surface of the metal fitting is characterized by being fitted into one of the grooves of the apex portion of the base side metal fitting.

  As described above, the hinge mechanism for a glass door according to the present invention can cope with a glass door whose weight changes clearly depending on the thickness, and the base side metal fittings can be used for both a heavy glass door and a light glass door. It is possible to provide a hinge mechanism for a glass door in which the opening / closing speed is substantially constant by setting the direction of the cam member in the bearing tube portion to change from side to side. In addition, when the glass door is opened, the apex of the cam member of the door side metal fitting that supports the glass door fits into one of the grooves of the apex of the cam member of the base side metal fitting, thereby making the glass door By holding the open state and pushing the glass door in the closing direction by hand, the apex portion of the cam member of the door side metal fitting comes off from either one of the grooves, and the glass door can be self-closed.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
In the figure, 1 is a base side metal fitting attached to a vertical frame 3 of a doorway 2 of a building, 4 is connected to a glass door 5 that closes the doorway 2, and a bearing cylinder portion 7 on the bearing cylinder portion 6 of the base side metal fitting 1. Is a door side metal fitting that is rotatably supported by the shaft 8 with respect to the base side metal fitting 1. Cam members 9 and 10 that come into contact with each other are built in the bearing tube portion 6 of the base-side metal fitting 1 and the bearing tube portion 7 of the door-side metal fitting 4, respectively, and a hole portion 9 a formed in the center of the cam members 9 and 10. The shaft 8 is inserted into 10 a so that the door-side metal fitting 4 is rotatable with respect to the base-side metal fitting 1. When the glass door 5 is closed, the bottom of the cam member 9 and the apex of the cam member 10 come into contact with each other. When the glass door 5 is open, the cam members 9 and 10 come into contact with each other at the apexes. The cam members 9 and 10 are formed with inclined cam surfaces 9b and 10b so as to fit with each other. In other words, when the glass door 5 is open, the apex portions of the inclined cam surfaces 9b and 10b come into contact with each other, and the glass door 5 supported by the door side metal fitting 4 is opened so as to be lifted. When the glass door 5 is closed, the apex of the inclined cam surface 10b of the cam member 10 of the door side metal fitting 4 moves so as to descend on the inclined cam surface 9b of the cam member 9 of the base side metal fitting 1. Thus, the glass door 5 is self-closing. More specifically, the inclined cam surface 9b at the upper end of the cam member 9 built in the bearing tube portion 6 of the base side metal fitting 1 has a depth in the left half with respect to a position that divides the circumferential length into two equal parts. Are provided with a shallow V-shaped inclined cam surface 9b 'and a deep V-shaped inclined cam surface 9b "on the right half, which is apex at the boundary between the inclined cam surface 9b' and the inclined cam surface 9b". Portions 9c and 9d are formed, and grooves 9c ′ and 9d ′ are formed in the vertex portions 9c and 9d. The inclined cam surface 10b at the lower end of the cam member 10 built in the bearing tube portion 7 of the door side metal fitting 4 is configured to operate so as to face the left half of the inclined cam surface 9b of the cam member 9, and has a depth. When the shallow inclined cam surface 9b ′ is positioned on the left half, the apex portion 10c of the inclined cam surface 10b of the cam member 10 on the glass door 5 side is lowered on the inclined cam surface 9b ′ of the cam member 9 at a low speed. When the cam member 9 is replaced so that the orientation of the cam member 9 in the bearing tube portion 6 is changed and the deep inclined cam surface 9b "is positioned in the left half, the glass door 5 The apex portion 10c of the inclined cam surface 10b of the cam member 10 on the side rotates so as to descend on the inclined cam surface 9b "of the cam member 9 at a high speed. It should be noted that when a heavy glass door and a light glass door are supported using inclined cam surfaces having the same depth, the closing speed of the heavy glass door is increased. Needless to say, when a heavy glass door is used, the shallow cam surface 9b 'is set to be located on the left half, and when a light glass door is used, a deep inclined cam is used. If the surface 9b ″ is set so as to be positioned on the left half, the closing speed of any glass door can be made almost constant. And when the glass door 5 is opened, the glass door 5 is supported. The apex portion 10c of the inclined cam surface 10b of the door-side metal fitting 4 is fitted into one of the grooves 9c ′ and 9d ′ of the apex portions 9c and 9d, and the glass door 5 is kept open, and the glass door Either by pushing 5 in the direction to close by hand The apex 10c is removed from one of the grooves 9c 'and 9d', and the glass door 5 is self-closed along the inclined cam surface 9b, and the cam member 9 is built in the bearing tube 6 of the base side metal fitting 1. Before the height adjustment member 11 is inserted into the lower end of the bearing tube portion 6 from above, and a hole 12 formed in the bottom portion of the bearing tube portion 6 in a hexagonal hole 11a formed in the lower end of the height adjustment member 11. Further, a height hex wrench is inserted and the height adjusting member 11 is screwed into the screw hole 13 at the bottom of the bearing tube portion 6 so that the upper end height position of the height adjusting member 11 can be adjusted. A ball member 14 is placed on the member 11, and the lower end of the cam member 9 is placed on the ball member 14 and the shaft 8 inserted into the hole 9a is placed in this way. Provided at the bottom of the bearing tube 6 of the bracket 1 By adjusting the height of the height adjusting member 11, the bearing tube portion 7 including the cam member 10 mounted on the cam member 9 on the base side metal fitting 1 side is finely adjusted up and down integrally with the door side metal fitting 4 and the glass door 5 side. On the other hand, the aforementioned cam member 10 is inserted into the bearing tube portion 7 of the door side metal fitting 4, and a cap 16 for closing the upper end of the bearing tube portion 7 is screwed into the screw hole 15 at the upper end of the cam member 10. It is like that.

  Next, the door side metal fitting 4 provided with the bearing tube portion 7 is a base plate 17 integral with the bearing tube portion 7, and a base plate which is supported on the base plate 17 by two screw shafts 18 and 19 and opposite to the door opening direction. An adjustment plate 20 facing the surface of 17, a cover 21 that covers the surface of the base plate 17 on the door opening direction side, a pressing plate 22 that clamps one end side of the glass door 5 between the adjustment plate 20, The cover 21, the adjustment plate 20, and the holding plate 22 are coupled to each other by screws 23, and packing materials 24 and 25 are attached to the opposing surfaces of the adjustment plate 20 and the holding plate 22. More specifically, of the two screw shafts 18 and 19, one screw shaft 18 close to the bearing tube portion 7 side is a fixing screw for fastening, and the other screw shaft 19 far from the bearing tube portion 7 is an adjustment plate 20. This is the angle adjustment screw. The head of the one screw shaft 18 is engaged with a laterally long hole 17 a formed in the base plate 17, and the tip of the screw shaft 18 is screwed into a screw hole 20 a formed in the adjustment plate 20. A hexagonal hole 18 a is formed in the head of the screw shaft 18. The head of the other screw shaft 19 is screwed into a screw hole 17 b formed in the base plate 17, and the tip of the screw shaft 18 is engaged with a laterally long hole 20 b formed in the adjustment plate 20. Yes. The cover 21 is formed with a round hole 21a for engaging a hexagon wrench with the hexagon hole 18a at the position of the one screw shaft 18 and the screw shaft 19 at the position of the other screw shaft 19. A laterally long hole 21b for engaging a hexagonal wrench is formed in the hexagonal hole 19a of the head, and a screw 23 for connecting the cover 21, the adjustment plate 20 and the holding plate 22 is inserted and the head of the screw 23 is inserted. A round hole 21c for engaging the portions is formed. The adjustment plate 20 is formed with a round hole 20c through which the screw 23 is inserted, and the holding plate 22 is formed with a screw hole 22a through which the screw 23 is screwed. Further, the base plate 17 is formed with a laterally long hole 17 c at the position of the screw 23. Further, a claw portion 20d is formed on one end side of the adjustment plate 20 so as to be engaged with an uneven portion 17d formed on the base plate 17 in the vicinity of the connection portion between the bearing tube portion 7 of the door side metal fitting 4 and the base plate 17. Yes. A round hole 5 a is formed in the glass door 5 so as to avoid the connecting portion between the pressing plate 22 and the screw 23.

  In the above configuration, the base side metal fitting 1 is attached to the vertical frame 3 of the entrance / exit 2 of the building so as to support the two portions near the upper and lower ends of the glass door 5 and is supported rotatably with respect to the base side metal fitting 1. A glass door 5 is attached to the door side metal fitting 4. Specifically, the glass door 5 is engaged between the adjustment plate 20 and the holding plate 22 by engaging a hexagon wrench with the hexagon hole 23a in the head of the screw 23 from the outside of the cover 21 and tightening the screw 23. It is pinched. In this state, the position of the glass door 5 is adjusted. The height of the glass door 5 is adjusted by the height adjustment member 11 provided at the bottom of the bearing tube portion 6 of the base side metal fitting 1 as described above. This is done by height adjustment. When it is desired to shift the glass door 5 in the door surface direction, the one screw shaft 18 is loosely tightened, and after the fine adjustment by moving the glass door 5 in the door surface direction together with the adjustment plate 20, The screw shaft 18 may be tightened (see FIG. 9). Further, when it is desired to adjust the opening direction angle of the glass door 5, the one screw shaft 18 is loosened and the other screw shaft 19 is rotated clockwise or counterclockwise to adjust the base plate 17. The angle of 20 may be adjusted, and then one screw shaft 18 may be tightened (see FIG. 10).

  In the present embodiment, the hinge mechanism has a height adjustment function of the glass door 5, a door surface direction adjustment function, and an opening direction angle adjustment function, but also supports those that do not have these functions. it can.

It is a disassembled perspective view of the hinge mechanism for glass doors in one embodiment of this invention. It is a front view which shows the state which attached the glass door using the hinge mechanism. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is an expansion perspective view of the upper end of the cam member incorporated in the bearing cylinder part of the base side metal fitting. It is an expansion perspective view of the upper end of the cam member which shows the state which changed the direction of the cam member incorporated in the bearing cylinder part of the base side metal fitting. It is a principal part expansion perspective view which shows the relationship between the cam member incorporated in the bearing cylinder part of the base side metal fitting, and the cam member incorporated in the bearing cylinder part of the door side metal fitting. It is a principal part expansion partial notched front view which shows the state which changed the height with the height adjustment member incorporated in the bottom part of the bearing cylinder part of the base side metal fitting. It is sectional drawing of the door side metal fitting which shows the state which shifted the glass door to the door surface direction with the door side metal fitting. It is sectional drawing of the door side metal fitting which shows the state which adjusted the opening direction angle of the glass door with the door side metal fitting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base side metal fitting 2 Entrance / exit 3 Vertical frame 4 Door side metal fitting 5 Glass door 6,7 Bearing cylinder part 8 Shaft 9,10 Cam member 9a, 10a Hole part 9b, 10b Inclined cam surface 9b ', 9b "Inclined cam surface 9c 9d vertex portion 9c ′, 9d ′ groove 10c vertex portion 11 height adjusting member 11a hexagonal hole 12 hole 13 screw hole 14 ball member 15 screw hole 16 cap 17 base plate 17a long hole 17b screw hole 17c long hole 18, 19 screw shaft 20 Adjustment plate 20a Screw hole 20b Long hole 20c Round hole 21 Cover 21a Round hole 21b Long hole 21c Round hole 22 Holding plate 22a Screw hole 23 Screw

Claims (2)

A base metal fitting attached to the vertical frame of the building entrance and exit and a glass door that closes the entrance are combined with the bearing cylinder on the bearing cylinder of the base side metal fitting and rotated with respect to the base metal fitting by the shaft. A door-side bracket that is freely supported, and the bearing cylinder portion of the base-side bracket and the bearing barrel portion of the door-side bracket each include a cam member that abuts each other, and the base side when the glass door is closed The bottom part of the cam member in the bearing cylinder part of the metal fitting and the top part of the cam member in the bearing cylinder part of the door side metal fitting come into contact with each other, and both the cam members make contact with each other in the state where the glass door is opened. The inclined cam surface at the upper end of the cam member built in the bearing tube portion of the base side metal fitting is configured on one side with respect to the position where the circumferential length is equally divided into left and right. The half is shallow in depth For glass doors, characterized in that the cam surface has an inclined cam surface with a deep depth on the opposite half and can be set so that the orientation of the cam member in the bearing tube of the base side bracket changes left and right Hinge mechanism. The apex portion is formed at the boundary of the inclined cam surface with different depth of the base metal fitting, and the groove is formed at each apex portion, the apex portion of the inclined cam surface of the door side metal fitting is the apex portion of the base metal fitting The hinge mechanism for a glass door according to claim 1, wherein the hinge mechanism is fitted into any one of the grooves.

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