JP3439989B2 - Auto closer joint - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for connecting an automatic closer provided on a door to a body.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show a gate using a conventional joint of this type. The gate pillar (frame) 1 is provided with a hinge joint piece (connecting member) 2 for rotatably connecting the door 3, and the door 3 is provided with an auto closer 4. The hinge joint piece 4 and the auto closer 4 are connected by a joint 5.

On the upper end surface of the joint 5, a recess 5a is formed in the central portion and a groove 5b is formed in the outer peripheral portion. A door support 2a provided at the tip of the hinge joint piece 2 is fitted in the recess 5a, and a feed 2b of the hinge joint piece 2 is fitted in the groove 5b. Thereby, the joint 5 is non-rotatably connected to the gate post 1. Further, the lower end surface of the joint 5 has a recess 5c having a flattened portion 5c '.
Is formed, and the movable wheel (rotating shaft) 4a having the flattened portion 4a ′ of the auto closer 4 is fitted into the recess 5c. As a result, the joint 5 and the movable wheel 4a are non-rotatably connected, and the movable wheel 4a is non-rotatably connected to the gate pole 1. Therefore, when the door 3 is opened and then released, the auto closer 4 returns the door 3 to the closed position.

[0004]

SUMMARY OF THE INVENTION In the above conventional structure,
Since the carrying feed 2b is fitted in the groove 5b, and the movable wheel 4a and the flattening portions 4a ', 5c' of the joint 5 are butted against each other, the closed position of the door 3 is also uniquely determined by the direction of the carrying feed 2b. It In other words, if the carrying direction 2b is different, the closed position of the door 3 also changes accordingly. For this reason, when it is desired to make the doors closed at the same position for hinge joint pieces (coupling members) having different carrying directions, the same joint cannot be used and another joint must be used. .

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 provides a rotary shaft of an auto-closer which is provided on a door rotatably supported by a skeleton and which returns the door to a closed position. , To the connecting member provided on the body,
In each joint for non-rotatably connected auto-closer, at a plurality of positions in the circumferential direction of the rotary shaft of the auto-closer, there is a connecting means non-rotatably connected to at least one of the rotary shaft or the connecting member. It is characterized by

Here, a connecting hole into which the rotary shaft of the auto closer is inserted and a notch extending from the inner peripheral surface of the connecting hole to the outer surface of the joint are formed, and the width of the notch is narrowed. By reducing the inner diameter of the connecting hole by means of the above, a reducing member for fixing the rotating shaft is provided in the connecting hole, and the connecting means is constituted by the connecting hole, the notch and the reducing member. desirable. Further, it is preferable that the diameter reducing member is a bolt that penetrates one of both side portions adjacent to the notch and is screwed into the other.

A fitting hole which has a plurality of concavities and convexities continuous in the circumferential direction on the inner peripheral surface, and which is non-rotatably fitted is formed in a fitting portion provided on the rotary shaft of the auto closer. It is also desirable to configure the connecting means.

[0008] A plurality of connecting grooves, which are arranged apart from each other in the circumferential direction of the rotating shaft, can be non-rotatably connected to the connecting member, respectively, and the connecting means can be constituted by the connecting grooves. desirable. This allows the join
To engage the connecting groove of the connector with the fitting part of the connecting member.
Therefore, the joint and the connection member can be connected so that the angle can be adjusted.
Can be made.

A plurality of fitting grooves of different sizes may be formed so that any one of them is non-rotatably connected to the connecting member.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 shows a gate 10 to which the present invention is applied. The gate 10 includes a gate post (body) 11 and a door 14. In the gatepost 11,
A hinge joint piece (connecting member) 12 is provided. The hinge joint piece 12 includes a base portion 12 a fixed to the gate post 11,
It has a carrier 12b that projects from the base 12a toward the door 14 and a support 12c provided at the tip of the carrier 12b. As shown in FIG.
The lower part of the hinge shaft 12d is press-fitted into c. On the other hand, the door 14 is provided with a hinge fitting 13. The hinge fitting 13 is supported from below by the support portion 12c, and the hinge shaft 12d is rotatably inserted therein. As a result, the door 14 is rotatably supported by the gate post 11.

The door 14 is provided with an automatic closer 20 for returning the door 14 to the closed position. The auto closer 20 has a cylindrical main body 21 with its axis lined up and down.
And a fixing piece 21a is provided on the peripheral side surface of the main body 21. On the other hand, as shown in FIG. 5, the gate post 11 of the door 14
A vertical groove 14a having a narrow entrance and a wide interior is formed at the side edge. The parallelogram-shaped fixing metal fitting 50 is vertically inserted into the vertical groove 14a, and the bolt 51
Is fixed through the bolt hole 21a 'of the fixing piece 21a.
It is screwed into the 0 screw hole 50a. by this,
As shown in FIG. 6, the fixing metal fitting 50 is laid down, and the acute angle portion 50b thereof bites into the rear end portion 14b of the vertical groove 14a, and as shown in FIG. 3, the fixing piece 21a and the gate post 11 side of the door 14 are provided. The main body 21 of the automatic closer 20 is fixed to the door 14 by press-contacting the edge of the fixing metal fitting 50 with each other.

As shown in FIG. 2, a movable wheel (rotating shaft) 22 having a cylindrical shape is rotatably inserted into a main body 21 of the automatic closer 20. The upper end of the movable wheel 22 projects from the main body 21, and the fitting part 2 is attached to the projected upper end.
2a is formed. Flat knurls are engraved on the outer peripheral surface of the fitting portion 22a (see FIG. 3). Body 21
A return means (not shown) is provided between the movable wheel 22 and the movable wheel 22. The returning means has a function of returning the direction of the movable wheel 22 to the main body 21 to the original position (the position when the door 3 is closed).

The movable wheel 22 and the hinge joint piece 12 are connected by a joint 30. As shown in FIG. 4, the joint 30 has a substantially cylindrical shape, and a support portion recess 31a is formed in the center of the upper end surface thereof.
Two fitting grooves 31b and 31c are formed in the peripheral portion. The fitting grooves 31b and 31c are arranged to face each other with the support portion recess 31a interposed therebetween, and extend from the outer peripheral surface of the joint 30 to the support portion recess 31a. These two fitting grooves 31b and 31c are different in size, and the fitting groove 31b on the left side in FIG.
It is smaller than 1c.

As shown in FIG. 2, the support portion 12c of the hinge joint piece 12 is fitted in the support portion recess 31a. Further, as shown in FIG. 1, one of the fitting grooves 31
b, 31c (in this embodiment, the smaller fitting groove 31
The feed 12b of the hinge joint piece 12 is fitted in b). Thereby, the joint 30 is non-rotatably connected to the gate post 11.

As shown in FIGS. 2 and 3, the joint 3
A fitting hole 32a is formed in the lower end surface of 0. On the inner peripheral surface of the fitting hole 32a, a flat knurl having a shape obtained by inverting the flat knurl of the fitting portion 22a is engraved. By fitting the fitting portion 22a of the movable wheel 22 into the fitting hole 32a, the joint 30 and the movable wheel 22 are non-rotatably connected. Moreover, the joint 30 and the movable wheel 22 can be changed in fitting position for each pitch of the flat knurls.

As shown in FIGS. 2 to 4, the joint 30
Is about two-thirds at the position where it hits the bottom of the fitting hole 32a.
A slot 32b extending from the outer peripheral surface to the fitting hole 32a is formed over the circumference. A notch 32c extending to the lower end surface of the joint 30 is formed at a position corresponding to the center of the slot 32b in the circumferential direction. The fitting hole 32a can be reduced in diameter by narrowing the width of the notch 32c. On the lower side of the joint 30, an insertion hole 32d is formed at one end adjacent to the cutout 32c, and a screw hole 32e is formed at the other end. A bolt (diameter reducing member) 33 is inserted through the insertion hole 32d, and the tip of the bolt 33 is screwed into the screw hole 32e. Therefore, when the bolt 33 is tightened, the diameter of the fitting hole 32a is reduced and the movable wheel 22 is tightened, so that the joint 30 and the movable wheel 22 are connected in a non-pullable manner.

Incidentally, a bolt recess 32f communicating with the insertion hole 32d is formed on the outer peripheral surface of the joint 30 near the end on the side where the insertion hole 32d is formed. The head 33a of the bolt 33 is recessed in the bolt recess 32f. This allows the bolt head 3 to be opened and closed when the door 14 is opened and closed.
3a does not interfere with the door 14. Further, inside the joint 30, a central shaft recess 31 d extending upward from the bottom surface of the fitting hole 32 a and the central shaft recess 31 are provided.
A small hole 31e extending from the bottom surface of d to the bottom surface of the support portion recess 31a is formed. On the other hand, the automatic closer 20 is provided with a central shaft 23 protruding from the upper end surface of the movable wheel 22. The central shaft 23 is not rotatable with respect to the main body 21 but is rotatable with respect to the movable wheel 22. The center shaft 23 is rotatably inserted into the center shaft recess 31d, and the bolt 24 is inserted into the small hole 31e.
Will be retained by.

A procedure for mounting the auto closer 20 using the joint 30 will be described. Initially, the gate 10
Is assumed to be a state in which the auto closer 20 and the joint 30 are removed from the final state of FIG. That is, it is assumed that the door 14 is simply rotatably supported by the gate post 11 via the hinge joint piece 12 and the hinge fitting 13. Auto closer 20 and joint 3
0 is connected in advance. That is, the movable wheel 22 is fitted into the fitting hole 32a, the central shaft 23 is inserted into the central shaft recess 31d, and the bolt 24 prevents the central shaft 23 from coming off. next,
The movable wheel 22 is fixed to the joint 30 by tightening the bolt 33.

The automatic closer 20 thus integrated
And joint 30 to support portion 12c of hinge joint piece 12
Located on the lower side of the joint 30
The a and the fitting groove 31b are fitted to the hinge joint piece 12.
Then, the fixing piece 21 a of the auto closer 20 is fixed to the door 14 using the fixing metal fitting 50. This completes the attachment of the auto closer 20. Therefore, the door 1
The auto closer 20 can be attached while the existing state is maintained, without removing the 4 and the hinge fitting 13.

In the above structure, since the fitting groove 31b is fitted in the feed 12b, the orientation of the joint 30 is determined by the orientation of the feed 12b. However, the relative orientation of the joint 30 and the movable wheel 22 is determined by the fitting hole 3
It can be adjusted by changing the fitting position of 0a and the fitting portion 22a in the circumferential direction, and the direction of the movable wheel 22 is not determined by the direction of the carrying feed 12b. Therefore, even if the relative angle between the direction of the carrying feed 12b and the closed position of the door 14 is different, the same type of joint 30 can be used. Moreover, since the joint 30 is provided with the two large and small fitting grooves 31b and 31c, the joint 30 can be used for two types of hinge joint pieces 12 having different thicknesses.

By the way, since the joint 30 and the movable wheel 22 are non-rotatably connected by tightening the bolt 33, it is not always necessary to form the flat knurls in the fitting hole 30a and the fitting portion 22a. In that case,
The fitting hole 32a of the joint 30 corresponds to the "connecting hole" of claim 2. In such a structure in which there is no flat knurl and the joint 30 and the movable wheel 22 are connected only by tightening the bolt 33, the joint 30 and the movable wheel 22 can be connected at an arbitrary angle over 360 °. it can. On the contrary, since the joint 30 and the movable wheel 22 can be non-rotatably connected only by meshing the flat knurls, the slot 32b, the notch 32c, and the bolt 33 are not always necessary when the flat knurl is attached. Not.

FIG. 7 shows a joint 40 according to another embodiment of the present invention. A recess 42a having a flattened portion 42a 'is formed on the lower end surface of the joint 40, and the movable wheel 4a of the conventional auto closer 4 shown in FIG. 9 is fitted therein. Therefore,
The angle formed by the joint 40 and the movable wheel 4a cannot be adjusted. On the other hand, on the upper end surface of the joint 40, a recess 41a for fitting the support portion is formed in the central portion, and a plurality of connecting grooves 41b are formed in the peripheral portion at intervals in the circumferential direction. These connecting grooves 41b have the same size, and the carrying feed 12b of the hinge joint piece (connecting member) 12 can be fitted into any of the connecting grooves 41b. Therefore, the hinge joint piece 12 and the joint 40 are connected at a plurality of angles at which the feed 12b and the connecting groove 41b mesh with each other. As a result, the closed position of the door 14 can be kept constant even if the orientation of the carriage 12b is different.

The present invention is not limited to the above embodiment, but can be modified as appropriate. For example, in the above-described embodiment, the "joining member" is configured by the hinge joint piece 12 for rotatably connecting the door 14 to the gate post 11, but the hinge post 12 is not included in the gate post (frame) 11. Alternatively, a "connecting member" may be provided and the joint 30 may be connected to this.

[0024]

As described above, in the invention according to claim 1, since the joint can be connected to at least one of the rotary shaft of the auto closer and the connecting member of the body so as to be adjustable in angle, The closing position of the door is not uniquely determined by the direction of the connecting member. Therefore, the same kind of joint can be applied regardless of the direction of the closed position of the connecting member or the door. Also, the size
The same type of joint to different types of connecting members
Can be used. In the invention according to claim 2, the joint and the rotary shaft can be connected at an arbitrary angle over 360 °. In the invention according to claim 3, the joint and the rotary shaft can be easily connected by screwing the bolt. In the invention according to claim 4, by engaging the fitting hole of the joint with the fitting portion of the rotary shaft, the joint and the rotary shaft can be connected so that the angle can be adjusted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along a plane parallel to a side surface of a gate pillar (frame) that passes through a rotation axis of the door of FIG. 1 and faces a hinge joint piece (coupling member) at 90 degrees.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of the joint according to the embodiment.

FIG. 5 is an exploded perspective view showing how the auto closer of FIG. 1 is attached to a door.

6 is a perspective view showing a state in which the fixing bracket of FIG. 5 is fixed to a door.

FIG. 7 is a perspective view of a joint according to an embodiment of claim 5.

FIG. 8 is a view corresponding to FIG. 3 showing a conventional example.

FIG. 9 is a perspective view showing a conventional example.

[Explanation of symbols]

11 Gatepost (body) 12 Hinge joint piece (connecting member) 14 doors 20 auto closer 22 Movable wheel (rotating shaft) 22a fitting part 30 joints 31b Fitting groove 31c Mating groove 32a Fitting hole (connecting hole) 32c cutout 33 bolts (reducing diameter member) 40 joints 41b Connection groove

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 11/00-11/08

Claims (4)

(57) [Claims] 1. A door provided on a body rotatably supported by the body.
Revolving axis of the auto closer that returns this door to the closed position
And the connecting member provided on the body
Odor joints that cannot be connected together
hand, A plurality of positions in the circumferential direction of the rotation axis of the auto closer
At least one of the rotating shaft and the connecting member.
It has a connecting means that is connected non-rotatably, Moreover, the connecting portions are different in size from each other.
Formed with multiple mating grooves that are non-rotatably connected to the material
Ru This is a joint for auto closers. 2. A connecting hole into which a rotary shaft of the auto closer is inserted, and a notch extending from an inner peripheral surface of the connecting hole to an outer surface of the joint are formed, and a width of the notch is narrowed. By reducing the inner diameter of the connecting hole, a reducing member for fixing the rotary shaft is provided in the connecting hole, and the connecting hole, the notch and the reducing member constitute the connecting means. The joint for an auto closer according to claim 1, wherein 3. The joint for an auto closer according to claim 2, wherein the diameter reducing member is a bolt that penetrates one of both side portions adjacent to the notch and is screwed into the other. 4. A fitting hole, which has a plurality of concavities and convexities continuous in the circumferential direction on the inner peripheral surface, is formed in a fitting portion provided on the rotating shaft of the auto closer so as to be non-rotatable, and the fitting hole is formed. The joint for an auto closer according to claim 1, wherein the connecting means is constituted by a hole.