JP2689091B2 - Hinge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called gravity hinge used for attaching a door of a public toilet or the like.

[0002]

2. Description of the Related Art Conventionally, as a hinge of this type, as shown in, for example, Japanese Utility Model Laid-Open No. 4-51587, a pair of connecting members having cylindrical portions arranged at the ends thereof so as to face each other on the same axis.
A cam receiving body that is inserted and fixed in one cylindrical portion and has a receiving concave portion whose inner bottom surface is formed as a cam receiving surface, a bearing body that is inserted and fixed in the other cylindrical portion, and is rotatably inserted in the receiving concave portion. And a cam rod formed on a cam surface of which an end surface is in sliding contact with the cam receiving surface, a shaft hole through which the cam rod is detachably inserted is formed in the bearing body, and the shaft is inserted into the shaft hole of the bearing body. A part is formed on the serration shaft and a shaft hole is formed on the serration shaft hole, so that the relative positional relationship of the pair of connecting members can be freely changed, and the structure can be set to a normally open hinge or a normally closed hinge. The configuration is such that the mounting state such as the opening position of the door can be variably set.

[0003]

However, in the above-mentioned conventional structure, when the door is lifted upward from the cam structure in which the cam receiver is placed on the cam rod, the other member is attached to the mounting member such as the window frame frame. The door can be removed relatively easily with the connection member remaining and one of the connection members attached to the door.
For this reason, there is the inconvenience that it may not be possible to prevent fraudulent acts such as removing the door and carrying it away.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve these disadvantages, and the gist thereof is to provide a pair of connecting members each having a tubular portion arranged at the ends thereof so as to face each other on the same axis. , A cam receiving body which is inserted and fixed in one cylindrical portion and has a receiving concave portion whose inner bottom surface is formed as a cam receiving surface, a bearing body which is inserted and fixed in the other cylindrical portion, and is rotatable in the receiving concave portion. A cam rod formed on a cam surface that is inserted and has an end surface slidingly contacting the cam receiving surface; and a pair of tubular bodies fitted to the pair of tubular portions. The bearing body includes the cam. The guide rod is erected and fixed by inserting the rod, the cam receiver and one of the tubular bodies, and the locking pin is projected from the guide rod, and the locking pin is inserted into the tubular body and the cam receiving body. To form a locking groove that allows only at a specific relative position of the pair of connecting members ,
A peripheral flange that contacts the inner end surface of one cylinder is formed on the cam receiver.
On the outer end face of the one tubular part.
A peripheral flange is formed to abut, and the inner side of the other cylinder is attached to the bearing body.
A peripheral flange that contacts the end face is formed and the other tubular body
A peripheral collar that abuts the outer end surface of the other tubular portion,
Insert the guide rod into the bearing body and the other tubular body, and
The shaft is formed by connecting the bearing body and the other tubular body with a nut.
The hinge is characterized in that the guide rod is erected and fixed to the receiving body .

[0005]

The guide rod is inserted into and fixed to the other cylindrical portion, and the guide rod is erected and fixed through the cam rod, the cam receiver, and the one cylindrical body, and the guide rod is provided with the locking pin in a protruding manner. Since a locking groove is formed in the tubular body and the cam receiving body to allow the insertion of the locking pin only at a specific relative position of the pair of connecting members, at a specific relative position of the pair of connecting members. Only one connecting member can be moved away from the other connecting member in the axial direction, and at this specific relative position, it can be set to the structure of the hinge for normal opening or the hinge for normal closing, or the opening position of the door. It is impossible to move one connecting member away from the other connecting member in the axial direction at a position other than a specific relative position. Can be prevented.

Further, a peripheral flange which contacts the inner end surface of the one cylindrical portion is formed on the cam receiving body, and a peripheral flange which contacts the outer end surface of the one cylindrical portion is formed on the one cylindrical body, The bearing body is formed with a peripheral collar that abuts the inner end surface of the other tubular portion, and the other tubular body is formed with a peripheral collar that abuts the outer end surface of the other tubular portion, and the guide rod is a bearing. The guide rod can be erected and fixed to the bearing body by inserting the body and the other tubular body and connecting the bearing body and the other tubular body with the screw portion and the nut.

[0007]

1 to 17 show an embodiment of the present invention, FIGS. 1 to 11 show an embodiment in the case of a normally open hinge, and FIGS. 12 to 17 show a case in which the hinge is normally closed. It is another example of.

Reference numeral 1 denotes an upper connecting member, 2 denotes a lower connecting member, which is made of stainless steel, and has cylindrical portions 1a and 2a arranged opposite to each other on the same axis line at its ends.
In addition, a plurality of screw holes 1b and 2b are formed in the double-sided spot facing.

Reference numeral 3 denotes a cam receiver, which is made of synthetic resin in this case, and the cylindrical portion 1a is provided on the lower peripheral flange 3a of the cam receiver 3.
Locking projection 3 which is fitted and locked in the locking recess 1c formed in the
b is formed, and the inner bottom surface is formed in the lower inner side of the sloped cam receiving surface 4 including the bottom valley portion 4a and the bottom top portion 4b. Is formed so as to penetrate therethrough, and a rectangular groove-shaped locking groove 7 extending in the axial direction is formed on the inner surface of the insertion hole 6 in a direction orthogonal to the plate direction of the connecting member 1 as shown in FIGS. Is inserted into the upper cylinder portion 1a to be press-fitted and fixed.

Reference numeral 8 denotes a bearing body made of synthetic resin,
On the upper peripheral flange 8a of the bearing body 8, a locking convex portion 8b which is fitted and locked in the locking concave portion 2c formed on the cylindrical portion 2a is formed, and is inserted into the lower cylindrical portion 1b by press fitting. It is fixed.

Reference numeral 9 denotes a cam rod made of synthetic resin,
A sloped cam having a top portion 10a and a valley portion 10b which are rotatably inserted in the receiving recess 5 and whose upper end surfaces are slidably in contact with the sloped cam receiving surface 4 and which face the bottom valley portion 4a and the bottom top portion 4b. Formed on the surface 10.

In this case, the bearing body 8 is formed with a sliding hole 8c, a through hole 8d and a small diameter hole 8e are formed therein, the cam rod 9 is formed in a stepped shaft shape, and the sliding hole 8c is formed in the lower portion. A through shaft 9a is formed through which the shaft is slidably and slidably inserted, the step end surface is formed as the contact surface 11, and a large step recess is formed on the upper surface of the bearing body 8 and is continuous with the sliding hole 8c. 8g is formed, the inner bottom surface of the stepped recess 8g is formed as a contact surface 12 capable of contacting the contact surface 11, and the contact surfaces 11 and 12 are further extended radially from the center by 18 degrees. The ratchet pawl surfaces 13 and 14 are formed on the ratchet pawls 13 and 14 which are formed of a plurality of substantially triangular protrusions 13a and 14a and recesses 13b and 14b which are arranged side by side.

Numerals 17 and 18 are cylindrical bodies made of synthetic resin and formed in a cylindrical shape with a bottom. The peripheral flanges 17a and 18a have locking recesses 1d and 2d formed in the cylindrical portions 1a and 2a. Locking protrusions 17b and 18b to be fitted and locked are formed, insertion holes 17d and 18d are formed in the bottom plate parts 17c and 18c, and the same shape as that of the rectangular groove-shaped locking groove 7 is formed on the inner surface thereof. A locking groove 19 is formed in the phase position, that is, in the direction orthogonal to the plate direction of the connecting member 1 as shown in FIGS. 8 and 13, and the upper end of the guide rod 15 can be inserted through the locking groove 7/19. The pin 20 is horizontally projected in the plate direction of the connecting member 2 as shown in FIGS.
The tubular bodies 17 and 18 are press-fitted to the outer ends of the tubular portions 1a and 2a.

Numerals 21 and 22 are caps, which are made of synthetic resin, are formed in a bowl shape, and have the above-mentioned cylindrical body 17.1.
8 is formed with fitting protrusions 21a and 22a that are fitted outside so as to face the locking protrusions 17b and 18b, and the caps 21 and 22 are press-fitted into the outer ends of the cylindrical bodies 17 and 18. It is configured by fitting.

In this case, the guide rod 15 made of stainless steel is inserted into the through hole 8d of the bearing body 8, and the threaded portion 15 of the guide rod 15 is projected from the insertion hole 18d of the cylindrical body 18.
A nut 15b is screwed to a, whereby the guide rod 15 is erected and fixed to the bearing body 8 and the cylindrical body 18 and the bearing body 8 are connected to each other, and the guide rod 15 is inserted into the cam rod 9. A guide hole 16 having a hole shape is formed, a guide rod 15 is formed in a stepped shaft shape, and a step surface 16a of the guide hole 16 and a step surface 15 of the guide rod 15 are formed.
c is formed on a stopper surface that can abut each other.

Since this embodiment has the above-mentioned construction, when the hinge for the normally open type used in public toilets is set as shown in FIG. 7, the cap 21 is provided with the cylindrical body 17 in the state shown in FIG.
And the engaging pin 20 of the cam rod 9 in the engaging groove 19 of the tubular body 17 as a specific relative position of the connecting members 1 and 2.
In the state where they are combined, that is, in the state where the plate directions of the connecting members 1 and 2 are orthogonal to each other, the tubular body 17 is pulled out from the tubular portion 1a, and the tubular portion 1a and the cam receiving body 3 are locked on the cam receiving body 3. With the locking pin 20 of the cam rod 9 aligned with the groove 7, that is, with the plate directions of the connecting members 1 and 2 orthogonal to each other, pull out upward.
As a result, the cam rod 9 is exposed, and in this state, the cam rod 9 is lifted on the guide rod 15 until the step surface 16a contacts the step surface 15c, and the ratchet pawl surface 13 is separated from the ratchet pawl surface 14. The cam rod 9 is rotated in a movable state, and as shown in FIG. 2, the angle θ between the upper connecting member 1 and the upper connecting member 1 when the door D is in the open and stopped state is set with reference to the plate direction of the lower connecting member 2. In the case of θ = 108 degrees, the top 10a
And the valley portion 10b is rotated, and in this setting state, the cam rod 9 is pushed downward on the guide rod 15, and the ratchet pawl surface 13 is brought into contact with the ratchet pawl surface 13 so as to occlude each other. The cam rod 9 is adjusted by rotating it with respect to the bearing body 8 to a position that serves as a normally-closed hinge. At this time, the ratchet pawl surfaces 13 and 14 extend in a radial direction from the center and are arranged in a plurality of substantially triangular shapes. Projections 13a and 14a and recesses 13a
Since it is composed of 14b, the contact surfaces 11 and 12 are locked by the plurality of convex portions and concave portions, the bearing body 8 and the cam rod 9 are securely fixed, and the tubular portion is again formed. 1a and the cam receiving body 3 are locking grooves 7 formed in the cam receiving body 3
With the locking pin 20 of the cam rod 9 fitted together, that is, with the connecting members 1 and 2 in the plate direction orthogonal to each other, it is inserted downward, and then the cam rod 9 is locked in the locking groove 19 of the tubular body 17. In the state where the pins 20 are combined, that is, in the state where the plate directions of the connecting members 1 and 2 are orthogonal to each other, the tubular body 17 is fitted to the tubular portion 1a and the cap 21 is fitted to the tubular body 17. The hinge connecting member 1 set as the normally open hinge is attached to the door D, and the connecting member 2 is attached to the attaching member M such as a door frame.

However, in the normal state, as shown in FIGS. 8 and 9,
The door D is in an open state having θ = 108 degrees, and when the door D is closed and rotated counterclockwise in the figures, the plate directions of the connecting members 1 and 2 are the same as shown in FIGS. 10 and 11. Door D is closed, and at this time, the cylinder portion 1a and the door D are moved to the cam receiving surface 4
The cam face 10 and the cam face 10 move upward while rotating, and this closed state is maintained by a slide key fitting or the like between the door D and the mounting member M.

When the slide key fittings are removed, the door D
Is rotated by the end face cam action of the cam receiving surface 4 and the cam surface 10 and the door's own weight and is rotated clockwise while being lowered, thereby automatically returning to the open state of θ = 108 degrees shown in FIGS. It will be.

12 to 17 show another embodiment in which the normally closed hinge as shown in FIG. 12 is set. In this case, in the same manner as described above, the ratchet pawl surface 14 to the ratchet pawl surface 13 are formed.
And the cam rod 9 is rotated in this freely rotatable state, and the top portion 1 is moved in the plate direction of the lower connecting member 2 as shown in FIG.
0a and the valley portion 10b are rotated, and in this setting state, the cam rod 9 is pushed downward on the guide rod 15, and the ratchet pawl surface 13 is brought into contact with the ratchet pawl surface 14 to occlude each other. Thus, the cam rod 9 is placed at a position where the upper connection member 1 and the lower connection member 2 are vertically closed hinges that are vertically overlapped with each other.
Is rotated with respect to the bearing body 8 to be adjusted and assembled in the same manner as described above. The connecting member 1 of the hinge set as the normally closed hinge is attached to the door D and the connecting member 2 is attached to a door frame or the like. It will be attached to the member M.

However, in the normal state, the door D is in the closed state as shown in FIGS. 14 and 15, and when the door D is opened and rotated counterclockwise in the figure, the door D is opened as shown in FIGS. 16 and 17. In this state, the tubular portion 1a and the door D are lifted while being rotated by the end face cam action of the cam receiving surface 4 and the cam surface 10.

When the hand is released from the door D, the door D lowers due to the end face cam action of the cam receiving surface 4 and the cam surface 10 and the door's own weight, and the door D is closed and pivoted in the clockwise direction. 14, it will return to the closed state of FIG.

Therefore, the cam rod 9 is disposed on the bearing body 8 so as to be rotatable and slidable in the axial direction, and contact surfaces 11 and 12 which can abut each other on the bearing body 8 and the cam rod 9 are formed. Is
Since the contact surfaces 11 and 12 are formed on the ratchet claw surfaces 13 and 14 which can be engaged with each other, by adjusting the rotational position of the cam rod 9 with respect to the bearing body 8, a pair of connecting members 1 and The relative positions of the two can be varied, and can be easily variably set to a normally-open or normally-closed hinge, and in particular, the bearing surface 1 and the cam rod 9 that can abut each other.
1 and 12 are formed, and ratchet pawl surfaces 13 and 14 capable of interlocking with each other are formed on the contact surfaces 11 and 12, and the bearing body 8 and the cam rod 9 are interlocked by mutual engagement of the ratchet pawl surfaces 13 and 14. Since the relative position of the cam rod can be adjusted and fixed, the length of the cam rod and the depth of the shaft hole can be made smaller and the total length of the cam rod can be shortened compared to the locking structure of the serration shaft and the serration shaft hole. Therefore, it is possible to make the device compact and to slide the ratchet pawl surfaces 13 and 14 by a small amount without separating the cam rod 9 from the hole at the time of setting the change, and to rotate the cam rod 9. After adjustment, the ratchet claw surfaces 13 and 14 can be occlusally locked with each other by sliding only this small amount, and thus the operation for setting and changing the positioning can be easily performed, improving workability and reducing costs. Reduction It is possible to achieve.

Since the ratchet claw surfaces 13 and 14 are composed of a plurality of substantially triangular protrusions 13a and 14a and recesses 13b and 14b which extend radially from the center and are juxtaposed, the plurality of protrusions are formed. And each contact surface 11 due to the recess
12 is locked, so that the bearing body 8 and the cam rod 9 can be securely fixed.

At this time, for example, when the door D is lifted in the open state of FIGS. 8 and 9 and the closed state of FIGS. 10 and 11 set to the normally open hinge, the locking pin 20 causes the tubular body 17 to move. The bottom plate portion 17c comes into contact with a surface of the bottom plate portion 17c on which the locking groove 19 is not formed, thereby preventing the door from moving away, and setting the hinge for normally closing, for example, in the closed state of FIGS. 14 and 15 and FIG.
6. In the open state of FIG. 17, when the door D is lifted, the locking pin 20 again contacts the surface of the bottom plate portion 17c of the cylindrical body 17 where the locking groove 19 is not formed, whereby the door D Will be prevented from moving away.

Therefore, in this case, the angle θ between the plate directions of the connecting members 1 and 2 set as a specific relative position =
Angles other than 90 degrees, for example, θ = 1 in FIGS. 8 and 9.
08 degrees, θ = 0 degrees in FIGS. 10 and 11, and FIG.
In FIG. 15, θ = 0 degree, and in FIGS. 16 and 17, θ
= 72 degrees, the locking pin 20 is prevented from being inserted, and is allowed only at a specific relative position, that is, θ = 90 degrees, so that at the specific relative position,
It is possible to move the connecting member 1 away from each other, change the specifications of the hinge and perform maintenance, and prevent illegal actions such as taking away the door D unless the specific relative position is known. .

Further, a peripheral flange 3a is formed on the cam receiver 3 so as to contact the inner end surface of the one cylindrical portion 1a, and the one cylindrical member 17 is contacted to the outer end surface of the one cylindrical portion 1a. A peripheral flange 17a is formed, a peripheral flange 8a is formed on the bearing body 8 so as to contact the inner end surface of the other tubular portion 2a, and the other tubular member 18 is contacted with the outer end surface of the other tubular portion 2a. Zhou Tsuba 1 in contact
8a is formed, the guide rod 15 is inserted into the bearing body 8 and the other tubular body 18, and the bearing body 8 and the other tubular body 18 are connected by the screw portion 15a and the nut 15b. Since the guide rod 15 is erected and fixed on the guide rod 15, the guide rod 15 is removed from the bearing body 8 while the locking pin 20 is in contact with the bottom plate portion 17c when the door D is lifted, and the guide rod 15 is separated together with the guide rod 15. It is possible to prevent the user from being abused, and it is possible to reliably prevent fraud.

The present invention is not limited to the above embodiment, but in the above embodiment, the engagement pin 20 and the engagement groove 7 are set so that the specific relative position is θ = 90 degrees.
Although the formation position of 19 is set, it is designed by appropriately changing it.

[0028]

As described above, the present invention makes it possible to move one connecting member away from the other connecting member in the axial direction only at the specific relative position of the pair of connecting members. In this case, the hinges for normally open and normally closed hinges can be set, and the mounting state such as the opening position of the door can be variably set.At positions other than the specific relative position, one connecting member can be used. It becomes inability of separating moved axially from the other connection member, specific phase
Unauthorized removal of the door unless you know the counter position
Can be prevented, and one of the cylinders can be attached to the cam receiver.
Forming a circumferential collar that abuts the inner end surface of the
A peripheral flange that abuts the outer end surface of one of the cylinders is formed on the cylindrical body of
The surrounding flange that abuts the inner end surface of the other cylinder on the bearing body.
And the outside of the other tubular portion on the other tubular body.
A peripheral collar that abuts on the end face is formed, and the guide rod is attached to the bearing body and
Insert into the other tubular body and use the screw and nut to mount the bearing
And the other cylindrical body are connected to each other, and a guide rod is erected on the bearing body.
By fixing, the guide rod will be a bearing when the door is lifted.
It will be removed from the body and removed along with the guide rod.
And prevent fraudulent activity.
Can be.

As described above, the initial purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view of an embodiment of the present invention.

FIG. 2 is a partial plan sectional view of an embodiment of the present invention.

FIG. 3 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 4 is a vertical sectional view of an embodiment of the present invention.

FIG. 5 is a partially exploded perspective view of the embodiment of the present invention.

FIG. 6 is a partial plan view of the embodiment of the present invention.

FIG. 7 is a plan view showing a usage state of the embodiment of the present invention.

FIG. 8 is a partially enlarged plan sectional view of an embodiment of the present invention in an open state.

FIG. 9 is a partially enlarged plan sectional view of the embodiment of the present invention in an open state.

FIG. 10 is a partially enlarged plan sectional view of the embodiment of the present invention in the closed state.

FIG. 11 is a partially enlarged plan sectional view of the embodiment of the present invention in a closed state.

FIG. 12 is a plan view of another usage state of the embodiment of the present invention.

FIG. 13 is a partial plan sectional view of another embodiment of the present invention.

FIG. 14 is a partially enlarged plan cross-sectional view of another embodiment of the present invention in a closed state.

FIG. 15 is a partially enlarged plan cross-sectional view of another embodiment of the present invention in a closed state.

FIG. 16 is a partially enlarged plan sectional view of an open state of another embodiment of the present invention.

FIG. 17 is a partially enlarged plan cross-sectional view of another embodiment of the present invention in an open state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection member 1a Cylinder part 2 Connection member 2a Cylinder part 3 Cam receiving body 3a Circumferential collar 4 Cam receiving surface 5 Receiving concave portion 7 Locking groove 8 Bearing body 8a Circumferential flange 9 Cam rod 10 Cam surface 15 Guide rod 15a Screw portion 15b Nut 17 Cylindrical body 17a Circumferential collar 18 Cylindrical body 18a Circumferential collar 19 Locking groove 20 Locking pin

Claims (1)

(57) [Claims] 1. A cam having a pair of connecting members, each of which has a tubular portion arranged to face each other on the same axis, and a receiving recess which is inserted and fixed in one tubular portion and whose inner bottom surface is formed as a cam receiving surface. A receiving body; a bearing body that is inserted and fixed in the other cylindrical portion; a cam rod that is rotatably inserted in the receiving concave portion and that is formed on a cam surface that has an end surface slidingly contacting the cam receiving surface; A pair of tubular parts fitted to the pair of tubular parts, and the guide rod is erected and fixed by inserting the cam rod and the cam receiver and one tubular body into the bearing body, The guide rod is provided with a locking pin, and the tubular body and the cam receiving member are formed with a locking groove that allows the insertion of the locking pin only at a specific relative position of the pair of connecting members. Inner end face of one cylinder on the receiver
Is formed on the one cylindrical body while forming a peripheral collar that abuts against
Forming a peripheral collar that abuts the outer end surface of the other tubular portion,
When the body is formed with a peripheral collar that abuts the inner end surface of the other tubular portion,
Both come into contact with the outer cylindrical end face of the other tubular portion on the other tubular body.
The guide rod is formed into a bearing body and the other tubular body.
Insert the nut into the bearing body and the other tubular shape
A hinge characterized in that the guide rod is erected and fixed to the bearing body by connecting to the body .