JP2573568Y2 - Pivot hinge - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to an upper and a lower part of a door,
About pivot hinge for pivotally so as to be freely opened and closed by rotation in the door mount.

[0002]

2. Description of the Related Art As a conventional pivot hinge, as shown in FIGS. 4 to 6, an upper frame plate a and a lower frame plate b are provided.
The two shaft holes c and d formed in the upper frame protrusion a 'and the lower frame protrusion b' are overlapped so that they coincide with each other, and a round rod-shaped rotating shaft e is fitted into the both shaft holes c and d. It is known that the end of a support screw f inserted and screwed from the side of the lower frame protrusion b 'into a circumferential groove g provided in the rotary shaft e. (See Japanese Utility Model Publication No. 50-6194)

In the above-mentioned pivot hinge, FIGS.
As shown in the above, the upper frame mounting plate a ″ of the upper frame plate a is placed on the upper horizontal frame h of the door mounting body m, and is fixed to the inner surface thereof with screws, so that the upper frame protruding piece a ′ is formed. The lower frame plate b is projected forward of the upper horizontal frame h, and the lower frame mounting plate b ″ is moved to the door i.
Is fixed to the upper end face j of the lower frame with screws, so that the lower frame projection b '
Project forward from the front of the door i.
When the rotating shaft e is inserted as described above so that the two shaft holes c and d coincide with each other, the supporting screw f is connected to the lower frame protrusion b '.
The door i is pivotally attached so that the door i can be freely opened and closed by rotating the door i by screwing into the peripheral groove g by screwing in from the screw hole k.

Further, in the above-mentioned pivot hinge,
As shown in FIG. 5, in the door open state, the screw insertion hole k is directed obliquely forward so that a tool such as a screwdriver can be inserted obliquely from the front, as indicated by the arrow l, and the support screw f can be easily screwed. Has been drilled.

[0005]

However, in the above-mentioned conventional pivot hinge, when the door i is closed, FIG.
As shown in the figure, the support screw f is screwed obliquely rearward, that is, toward the door mounting body m, but the support screw f is screwed from the side of the lower frame protrusion b '. Because
When the gap n generated between the side of the lower frame projection b 'and the door mounting body m is somewhat large, a small curved driver or the like is inserted from here, and the screwing operation of the support screw f is performed. Becomes possible, and as a result, in the door closed state, the rotating shaft e is removed,
There is a risk that the door will be opened unintentionally.

The present invention has been made in view of the above-mentioned problems of the conventional pivot hinge, and a base plate and an arm are respectively connected to a base protruding plate portion.
More supported by a shaft pin at the arm projecting plate portion, between the respective projecting plate portion, by the Jikutome plate on the inner surface of the arm projecting plate portion are fixed by the mounting member by screws or the like, this Jikutome plate The stopper provided at the end of the shaft pin is inserted into an annular groove provided around the shaft pin, whereby when the door is closed, the shaft stopper plate is sandwiched between the base plate and the arm. By being concealed, it is impossible to screw the screw fixing the axle fixing plate, thereby making it impossible for the shaft pin to escape and completely preventing an unintentional opening. But that is the purpose.

[0007]

According to the present invention, in order to achieve the above object, the inner surface of the vertical frame or the side of the door mounting body at the door suspension side is provided.
A mounting plate attached to the inner surface of the frame and a horizontal frame
The board part provided on the inner surface and the board part
The base protruding plate that extends forward of the door
The base protruding plate has a base shaft
Base plate and the horizontal end face of the door of the door mounting body
The fixed plate part to be connected and the door
Arm extending from the arm
Comprising an arm that running through the arm shaft hole in the plate portion, these
Base protruding plate and arm protruding plate oppose in vertical relationship
With the door closed, the shaft pin is inserted into the arm shaft hole.
Into the base shaft hole so that it can rotate freely.
Type, whereas between the base projecting plate portion and the arm projecting plate portion, the arm projecting plate portion inner surface, a shaft stopper plate retaining portion at an end thereof, by a mounting member such as a screw In the door opening state fixed By doing so, the base projecting plate and the arm projecting plate
The annular groove of the shaft pin provided between the parts, is intended to provide a pivot hinge comprising engageably inserted so as to be rotatably retaining portion of the.

According to a second aspect of the present invention, a male screw portion is engraved on the shaft pin according to the first aspect of the present invention, and the male screw portion is screwed to a female screw portion engraved in a shaft hole of the arm. The content of the addition of the enabled configuration is described.

[0009]

According to the first aspect, first, the base plate is
The substrate part In the vertical frame inner surface and the like of the door mounting body, such as by fixed screws to the door Tsumoto side door base projecting plate portion
Protrude forward from the mounting body . On the other hand, the arm has its fixed plate part on the lateral end face of the door and screw it to the hanging side.
Fixed with such means, to project the arm projecting plate portion forward.

[0010] The base of the projecting plate portion and the arm projecting plate portion so as to face in the vertical relationship position and closing state, each of them based
A scan shaft hole and ground shaft hole at which is matched, the arms butt
It inlet fitting the shaft pin on the arm shaft hole in the plate portion is inserted so as to be rotatable in the base shaft hole of the base projecting plate portion that tip.

[0011] Here, when due to Claim 2, since the male threaded portion of the shaft pin is adapted to be screwed into the internal thread portion of the arm shaft hole, without axial pin would be out away, arms projecting plate held in part, Keru Contact <br/> the base projecting plate portion while being inserted into the base shaft hole is maintained, the door may be opening motion about the axis pin by rotation. Therefore, when the door is opened, the rotation of the arm causes the arm to protrude.
The inner surface of the plate portion, since escape from the base projecting plate portion inner surface so that the exhibited dew <br/>, and Haise' the Jikutome plate to the arm projecting plate portion inner surface, the retaining portion of the tip Is engaged with an annular groove formed around a portion between the two projecting plate portions on the shaft pin, and the shaft fixing plate is attached to the base projecting plate portion.
The door is completely mounted by fixing it to the inner surface with a mounting member such as a screw.

Since the shaft pin is prevented from moving in the axial direction by the shaft fixing plate, the shaft pin is fluctuated or screwed even when an external force in the rotation direction is applied to the shaft pin with the opening / closing operation by the rotation of the door. You are not moved and therefore do not escape. The shaft stop plate of the arm projecting plate portion in closing state, since it is hidden by the base projecting plate portion, threadedly such removal operation becomes impossible due to a tool mounting member by screws or the like at the time of closing, in which good is, worry that would be opening the door to the shaft pin is removed at the time of the closing door is eliminated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the pivot hinge according to claim 1, a door is provided.
Yo urchin in FIGS shows the case where it is attached to the upper base plate 1, and the horizontal plate portion 1a, the width
Form tracks at a right angle to the mounting plate portion 1b downward from a direction one side with are formed on the front face a substantially L-shaped, horizontally forward from the base plate portion 1a base protruding plate portion 1c is extended, the base
A base shaft hole 1d is provided in the base projecting plate portion 1c in the vertical direction.

Further, what is shown as the base plate 1 above, the substrate part 1a, and Juseki the base projecting plate portion 1c on the cover plate 2, together are fastened with screws 3 ‥‥‥ in FIG The cover plate 2 is further provided with a base shaft hole 1d of the base protruding plate portion 1c.
A bush 4 with a flange 4a is fitted into the through hole 2a from below, and its tip is inserted into the base shaft hole 1d.

Next, the arm 5 has an arm protruding plate portion 5b which is horizontally bent forward from one end of the horizontal fixed plate portion 5a.
Is formed into a substantially L-shape in a plane.
A base projecting plate of the base plate 1 is provided on the projecting plate portion 5b.
A so as to correspond to the base shaft hole 1d opened in the section 1c.
The arm shaft hole 5c is vertically penetrated.

Furthermore shaft pin 6 may be of a mere cylindrical but, as the pivot pin 6 according to claim 2, As best shown in FIG. 1, in the base of the head 6a side, said arm < br /> only a male screw portion 6b into the corresponding sites and the female screw portion 5c 'provided in the shaft hole 5c is Yes and engraved, it than to the tip is formed in a free round bar threaded portion, the male screw portion 6b in the vicinity that have been assumed that annular grooves 6c is circumferentially provided.

A shaft fixing plate 7 corresponding to the shaft pin 6
, The central portion in the width direction at the tip, in the illustrated embodiment by notches in a plane substantially U-shaped, retaining portion 7a having a pair of retaining pieces 7b, which are branched to the left and right, and 7b are formed.

[0018] Bibottohinji of the above configuration, use the door 10 by the operator, such as the following, to be pivotally mounted to the door mounting body 8
Will be used. First, the above base plate 1
Is and its substrate part 1a and the mounting plate portion 1b, and fixed with screws 9 ‥‥‥ on the inner surface of the lateral frame 8a inner surface and the vertical frame 8b of each door mounting member 8 as shown in FIGS. 1 to 3, a substrate From part 1a
The protruding base protruding plate portion 1c is made to protrude forward from the door mounting body 8 . Of course, in this case, the base plate 1
Is on the door mounting body 8 and is fixed to the door hanging side.

On the other hand, the arm 5 has a fixed plate portion 5a on a lateral end face 10a which is an upper layer of the door 10 in the illustrated example.
Ri passing shown in FIG. 2 in its Tsumoto side, bis 11 ‥‥‥
And the arm projecting plate portion 5b is also fixed to the door
The attachment body 8 is made to protrude forward.

Next, with the door 10, the base plate 1
And the base projecting plate portion 1c and the arm projecting plate portion 5b of the arm 5
Are opposed to the arrangement of the upper and lower relation , and each base shaft hole 1d,
When the arm shaft hole 5c is matched, in the illustrated example, the shaft pin 6 is fitted into the arm shaft hole 5c from below, and its tip is rotatably inserted into the base shaft hole 1d. Here, in the illustrated example, the male screw portion 6b of the shaft pin 6 is screwed into the female screw portion 5c 'of the arm shaft hole 5c, thereby preventing the shaft pin 6 from dropping off. The bush 4 which is fixed to the base plate 1 and integrated with the base plate 1 as described above, and which is provided in the arm shaft hole 5c.
Is inserted through.

[0021] Then, by rotating the direction of arrow A shows the door 10 in Figure 2, the door 10 is as open Tobirado indicated by the two-dot chain line in the figure, put the arm projecting plate portions 5b of the arm 5
The base end side escapes outward from the inner surface of the base projecting plate portion 1c of the base plate 1 and the cover plate 2, and the inner surface is exposed. Therefore, the shaft stopper plate 7 is fixed to the inner surface of the arm protruding plate portion 5b of the arm 5 by a mounting member 12 such as a screw in a state where the retaining portion 7a is engaged with the annular concave groove 6c of the shaft pin 6. Thus, the installation of the door 10 is completed.

In this embodiment, the base plate 1 is fixed to the inner surface of the vertical frame 8b of the door mounting body 8 so as to be fixed.
Although the mounting plate portion 1b is bent downward, it is formed in a substantially L-shaped plane similarly to the arm 5, and the horizontal frame 8a of the door mounting body 8 is formed.
May be fixed to the inner surface.

[0023]

[Effect of the Invention] The present invention is configured as described above.
Since the shaft stopper plate is completely concealed by the base protruding plate portion of the base plate, it becomes impossible to remove the mounting member such as a fixing screw using a screwdriver or other tools. This makes it possible to eliminate the concern for occurrence would be the door opening by escape shaft pin during closing.

Furthermore, according to the second aspect, the shaft pin is screwed into the female screw portion of the arm shaft hole in the arm projecting plate portion of the arm , so that the shaft pin does not detach downward, and therefore does not detach. While supporting the shaft pin,
It is not necessary to carry out the subsequent work, further, to the door opening
Arm projecting plate portion it is based on base plate
Since the projections escape from the inner side to the outside and are exposed, the work of fixing the shaft stopper plate itself can be easily performed, and the work of mounting the door can be performed simply and quickly.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a pivot hinge according to an embodiment of the present invention, showing a door mounted state.

FIG. 2 is a sectional view taken along line AA 'in FIG.

FIG. 3 is a front view of a main part showing the door mounting state of the embodiment in a partially cutaway manner;

FIG. 4 is a perspective view showing a conventional example of a pivot hinge with a part cut away.

FIG. 5 is a plan view of the conventional example, showing a used and opened state of the door.

FIG. 6 is a plan view showing the door open state of the conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Base plate 1a Substrate part 1b Mounting plate part 1c Base protruding plate part 1d Base shaft hole 5 Arm 5a Fixing plate part 5b Arm protruding plate part 5c Arm shaft hole 5c 'Female screw part 6 Shaft pin 6b Male screw part 7 Shaft stopper plate 7a Locking part 8 Door mounting body 8a Horizontal frame 8b Vertical frame 10 Door 10a Horizontal end face 12 Mounting member

Claims (2)

(57) [Scope of request for utility model registration] 1. The inner surface of a vertical frame on a door hanging side of a door mounting body.
A mounting plate attached to the inner surface of the horizontal frame and a horizontal
A board part arranged on the inner surface of the frame and a
With the base protruding plate that extends forward of the door
The base protruding plate has a base shaft
Base plate and a fixed plate attached to the lateral end surface of the door of the door mounting body
And an arm connected to this and extending forward from the door mount
Arm protruding plate, and arm arm
An arm penetrating through the hole, and the base projecting plate portion and the arm projecting plate portion
In the closed state where the doors are opposed to each other , a shaft pin is fitted into the arm shaft hole, and the tip is inserted into the base shaft hole so as to be freely rotatable. On the other hand , between the base projecting plate portion and the arm projecting plate portion , A
The over arm projecting plate portion inner surface, a shaft stopper plate stop portion was set vignetting tip, by fixing the mounting member such as a screw In the door opening state, the base projecting plate portion and the arm projecting plate portion the annular groove of the shaft pin provided between <br/>, pivot hinges, characterized in that as engaged cause to be freely retaining portion pivoting of the. 2. The inner surface of a vertical frame on a door hanging side of a door mounting body.
A mounting plate attached to the inner surface of the horizontal frame and a horizontal
A board part arranged on the inner surface of the frame and a
With the base protruding plate that extends forward of the door
The base protruding plate has a base shaft
Base plate and a fixed plate attached to the lateral end surface of the door of the door mounting body
And an arm connected to this and extending forward from the door mount
Arm protruding plate.
Arm having an arm shaft hole having a longitudinal axis.
The base projecting plate and the arm projecting plate are in a vertical relationship.
In closing state of being opposed Te, ne female arm shaft hole
And screwed to the internal thread portion of the shaft pin Flip unit, based its tip
And rotatably inserted so as to scan shaft hole, whereas during the base projecting plate portion and the arm projecting plate portion, A
The over arm projecting plate portion inner surface, a shaft stopper plate stop portion was set vignetting tip, by fixing the mounting member such as a screw In the door opening state, the base projecting plate portion and the arm projecting plate portion the annular groove of the shaft pin provided between <br/>, pivot hinges, characterized in that as engaged cause to be freely retaining portion pivoting of the.