JP2003227265A - Pivot shaft operating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply confirm the engagement state of a pivot shaft and a pivot hole in a door. <P>SOLUTION: This pivot shaft operating device includes the pivot hole 2 formed in the door 1 of an entrance, a fixed body 4 fixed to an entrance frame 3, the pivot shaft 5 put in and out of the pivot hole from the fixed body side, a slide hole 6 formed in the fixed body for supporting the pivot shaft to be freely slid, a lever 7 supported on the fixed body connected to the pivot shaft, and a lever operating screw 8 engaged with the fixed body to project the pivot shaft into the pivot hole through the lever when it spirally advances into the inside of the fixed body and to separate the pivot shaft through the lever when it spirally advances to the outside of the fixed body. The device is provided with an indicator member 23 mounted in an opening part of a screw hole of the fixed body in the condition where the lever operating screw is sunk in the interior of the fixed body. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot shaft operating device used for a pivot hinge.

[0002]

2. Description of the Related Art A door for a doorway of a building may be attached to an doorway frame integrated with a wall or the like via a pivot hinge. Japanese Patent Laid-Open No. 2001-90425 discloses an example of a pivot hinge. This pivot hinge includes a pivot shaft operating device having the following configuration. That is,
A pivot hole formed in the door of the doorway, a fixed body fixed to the doorway frame, a pivot shaft that can be moved in and out of the pivot hole from the fixed body side, and a slide formed in the fixed body that slidably supports the pivot shaft. A hole, a lever supported by a fixed body that is connected to the pivot shaft, and a lever when the pivot shaft is projected into the pivot hole through the lever when it is screwed inside the fixed body and when it is screwed outside the fixed body. And a lever operating screw screwed to a fixed body for disengaging the pivot shaft from the pivot hole. When the lever operation screw is turned to one side and screwed toward the inside of the fixed body, the lever rotates in one direction to allow the pivot shaft to enter the pivot hole. As a result, the pivot hinge is connected, and the door can be opened and closed with the pivot shaft as a fulcrum. Further, when the lever operating screw is turned in the opposite direction and screwed to the outside of the fixed body, the lever rotates in the other direction to disengage the pivot shaft from the pivot hole. This separates the pivot hinge and allows the door to be removed from the doorway frame.

[0003]

The screw hole of the conventional lever operating screw is completely shielded by the decorative plate after the door is attached to the doorway frame. Therefore, once the installation work of the door is completed, it is not possible to confirm the tightening condition of the lever operation screw, the presence or absence of the lever operation screw, and the like. In order to confirm this, it is troublesome to remove the decorative plate one by one. Also, when removing the door from the doorway frame for repairs or the like, it is troublesome to remove the decorative plate one by one.

An object of the present invention is to make it possible to easily confirm the tightening condition of the lever operating screw, the presence or absence of the lever operating screw, etc., and to easily and quickly remove the door from the doorway frame for repair or the like. To provide an operating device.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is fixed to a pivot hole (2) formed in a door (1) of an entrance and exit and an entrance and exit frame (3). To the fixed body (4), a pivot shaft (5) that can be inserted into and removed from the pivot body (2) from the side of the fixed body (4), and a fixed body (4) that slidably supports the pivot shaft (5). The slide hole (6) formed, the lever (7) supported by the fixed body (4) connected to the pivot shaft (5), and the lever when screwing into the fixed body (4) Fixation for protruding the pivot shaft (5) into the pivot hole (2) and detaching the pivot shaft (5) to the outside of the pivot hole (2) via the lever (7) when the pivot shaft (5) is screwed to the outside of the fixed body (4) Body (4)
In a pivot shaft operating device comprising a lever operating screw (8) screwed into a screw hole (8), the lever operating screw (8) is recessed inside the fixed body (4) and the screw hole (4) of the fixed body (4) is 8b) indicator member (2
3, 25) equipped with a pivot shaft operating device.

According to a second aspect of the present invention, in the pivot shaft operating device according to the first aspect, a tool insertion hole (24) having a diameter smaller than that of the lever operating screw (8) is provided in the center of the indicator member (23, 25). , 26) is formed on the pivot shaft operating device.

The invention according to claim 3 is the pivot shaft operating device according to claim 1, wherein the indicator member (23, 25) has a peep hole (24, 24) for viewing the state of the lever operating screw (8). 26) is adopted.

The invention according to claim 4 is the pivot shaft operating device according to any one of claims 1 to 3, wherein the indicator members (23, 25) are means for preventing the lever operating screw (8) from coming off. A pivot shaft operating device equipped with (30) is adopted.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a pivot shaft operating device according to the present invention will be described in detail below with reference to the accompanying drawings.

<Embodiment 1> As shown in FIGS. 1 to 3, this pivot shaft operating device includes a pivot hole 2 formed in a door 1 at an entrance and an exit, and a fixed body 4 fixed to an entrance frame 3. A pivot shaft 5 that can be inserted into and removed from the pivot hole 2 from the side of the fixed body 4, a slide hole 6 formed in the fixed body 4 that slidably supports the pivot shaft 5, and a fixed body 4 connected to the pivot shaft 5. The lever 7 supported by the fixed body 4
When the screw shaft is inwardly advanced, the pivot shaft 5 is projected into the pivot hole 2 through the lever 7 and when the screw shaft is externally screwed to the fixed body 4, the pivot shaft 5 is detached from the pivot hole 2 through the lever 7. The lever operation screw 8 screwed to the body 4 is provided.

As shown in FIG. 2, the pivot hole 2 is formed in the upper end of the door 1 as a bearing hole for rotatably supporting the pivot shaft 5. Although not shown, a similar pivot hole is formed at the lower end of the door 1.

The fixed body 4 is formed of a substantially rectangular plate material.
The fixed body 4 is fixed to a surface of the doorway frame 3 facing the upper edge of the door 1 by a desired fixing means such as a fixing screw. A cavity for accommodating the operating device of the pivot shaft 5 is provided above the fixed body 4 of the doorway frame 3.

The pivot shaft 5 is formed of a bar material such as a round bar. The fixed body 4 is provided with a slide hole 6 in which the pivot shaft 5 slides toward the door 1 side by the cylindrical body 10. A fitting hole is formed in the fixed body 4, and the tubular body 10 is fitted into the fitting hole from the inlet / outlet frame 3 side to be integrated with the fixed body 4. The pivot shaft 5 slides in the slide hole 6 in the vertical direction with respect to the fixed body 4 and moves in and out from the lower surface of the fixed body 4 to move in and out of the pivot hole 2.

The lever 7 extends above the fixed body 4 along its length, and is supported by a bracket 11 provided on the fixed body 4 via a horizontal shaft 12 so as to be vertically rotatable.
One side of the lever 7 around the horizontal axis 12 extends toward the cylinder 10, and a thin rod-shaped tip of the lever 7 penetrates a vertical groove 13 formed on a side surface of the cylinder 10 into the cylinder 10 to form a pivot shaft. 5 enters into the lateral hole 14 formed on the side surface of 5. Therefore, when the lever 7 pivots up and down with the horizontal shaft 12 as a fulcrum, the pivot shaft 5 slides up and down in the slide hole 6.

Further, an indicator piece 15 projecting toward the fixed body 4 is formed at an intermediate portion of the lever 7 on the side of the pivot shaft 5 around the horizontal shaft 12. The fixed body 4 is formed with an inlet / outlet hole 16 of the indicator piece 15 corresponding to the indicator piece 15. When the pivot shaft 5 properly enters the pivot hole 2, the indicator piece 15 enters into the entrance / exit hole 16 as shown in FIG. 2, and the tip of the indicator piece 15 is fixed to be seen through the entrance / exit hole 16 of the fixed body 4. It can be seen from below the body 4. When the pivot shaft 5 is disengaged from the pivot hole 2 or the pivot shaft 5 is incompletely inserted into the pivot hole 2, the indicator piece 15 slightly penetrates into the entrance / exit hole 16 as shown in FIG. Only the middle of 16 enters, and the tip of the indicator piece 15 cannot be clearly seen from the outside of the insertion hole 16 of the fixed body 4.

The lever operating screw 8 is provided so as to vertically pass through the fixed body 4, and its upper end is connected to the other side of the lever 7 about the horizontal shaft 12 via a ball joint 17. The male screw of the screw shaft 8 a of the lever operating screw 8 is screwed into the female screw of the screw hole 8 b formed perpendicularly to the fixed body 4. A groove 8c for inserting a tool (not shown) such as a screwdriver for driver is formed at the lower end of the screw shaft 8a. When a tool is inserted into the groove 8c and the lever operating screw 8 is rotated so as to be screwed toward the inside of the fixed body 4, the lever 7 rotates around the horizontal shaft 12 in the counterclockwise direction as shown in FIG. Insert the pivot shaft 5 into the pivot hole 2. The lever operation screw 8 is screwed so that the lever operation screw 8 is screwed to the outside of the fixed body 4.
When is rotated in the opposite direction, the lever 7 rotates clockwise around the horizontal shaft 12 as shown in FIG. 1, and the pivot shaft 5 is disengaged from the pivot hole 2.

Further, as shown in FIGS. 1 to 3, a decorative plate 18 is attached to the surface of the fixed body 4 facing the door 1 as required. The decorative plate 18 is fixed to the fixed body 4 with a set screw 19, and shields the end surface of the tubular body 10 viewed from the fixed body 4, the cutout portion of the bracket 11, and the like. The decorative plate 18 has a guide hole 20 communicating with the slide hole 6 of the cylindrical body 10,
A window hole 21 that communicates with the inlet / outlet hole 16 of the indicator piece 15,
Through holes 22 through which the lever operation screw 8 penetrates are provided respectively, and the pivot shaft 5, the indicator piece 15, and the lever operation screw 8 are exposed from the respective holes.

As shown in FIGS. 2 and 3, the operating device for the pivot shaft 5 is provided with an indicator cap 23 which is an indicator member for indicating that the pivot shaft 5 has been completely inserted into the pivot hole 2. It is provided. That is, when the lever operation screw 8 is immersed in the fixed body 4, the disc-shaped indicator cap 23 is screwed into the screw hole 8b.
Is attached to the opening of the. Since the indicator cap 23 is attached to the opening of the screw hole 8b, it can be visually recognized from the outside that the pivot shaft 5 is properly inserted into the pivot hole 2 of the door 1. The indicator cap 23 is fitted and fixed to the edge of the through hole 22 of the decorative plate 18 from below the decorative plate 18. In order to hold the indicator cap 23 more firmly in the through hole 22, an inverted taper surface may be formed as shown in FIG. Further, when the decorative plate 18 is omitted, the indicator cap 23 may be directly attached to the fixed body 4 by fitting it into the screw hole 8b of the fixed body 4. The indicator cap 23 may be colored in order to make it easier to visually recognize the presence of the indicator cap 23.

A tool insertion hole 24 having a diameter smaller than that of the screw shaft 8a of the lever operating screw 8 is formed in the center of the indicator cap 23. As a result, the tool is inserted from the tool insertion hole 24 into the screw hole 8b, locked in the groove 8c of the lever operation screw 8, and the lever operation screw 8 is loosened, the pivot shaft 5 is pivoted as shown in FIG. The indicator cap 23 can be removed from the fixed body 4 at the same time when the indicator cap 23 is pulled out from the hole 2 into the cylindrical body 10. The tool insertion hole 24 also functions as a peep hole for viewing the state of the lever operating screw 8. By observing the presence or absence of the lever operation screw 8 or the position of the lower end of the lever operation screw 8 through the peep hole, it is possible to determine whether the engagement state between the pivot shaft 5 and the pivot hole 2 is good or bad.

Next, the operation of the pivot shaft operating device having the above structure will be described.

When the door 1 is attached to the doorway frame 3, the pivot shaft 5 and its operating device are set in the state shown in FIG. 1, and the pivot hole 2 of the door 1 is brought into contact with the slide hole 6 of the pivot shaft 5 in the doorway frame 3. No

Then, a tool such as a screwdriver is inserted into the groove 8c of the lever operating screw 8 shown in FIG. 1, and the lever operating screw 8 is screwed into the fixed body 4. As a result, as shown in FIG. 2, the lever 7 rotates in the counterclockwise direction around the horizontal shaft 12 and pushes the pivot shaft 5 downward. Pivot axis 5
Is guided by the slide hole 6 and protrudes below the fixed body 4,
It penetrates into the pivot hole 2 of the door 1.

As shown in FIG. 2, when the pivot shaft 5 properly enters the pivot hole 2, the screw shaft 8a of the lever operating screw 8 is completely recessed inside the fixed body 4. Then, in order to mark the completion of the engagement between the pivot shaft 5 and the pivot hole 2, the indicator cap 23 is attached to the opening of the screw hole 8b of the fixed body 4. Indicator cap 23
May be fixed by fitting it into the screw hole 8b.
8 may be fitted in the through hole 22 and fixed.

In addition, a floor-side pivot shaft is also inserted in a pivot hole on the lower side of the door 1, whereby the door 1 can be rotated around a pivot hinge as a fulcrum, and an entrance / exit can be opened / closed.

The indicator cap 23 fits in the gap between the upper edge of the door 1 and the doorway frame 3, so that the door 1 can be opened and closed without being interfered with by the indicator cap 23. Also, when the door 1 is opened, the indicator cap 2
By checking the presence or absence of 3, the pivot shaft 5 becomes the pivot hole 2
It is possible to confirm whether or not it is properly inserted into. Further, the indicator cap 23 has a tool insertion hole 24
If a hole is formed, the state of the lever operating screw 8 can be seen as a peep hole, and the lever operating screw 8
It is possible to check the tightening condition, etc. at any time.

Further, as shown in FIG. 2, when the pivot shaft 5 properly enters into the pivot hole 2, the indicator piece 15 of the lever 7 enters into the entrance / exit hole 16 of the fixed body 4, and the tip thereof is the decorative plate. It can be seen through 18 window holes 21. This also makes it possible to confirm the engagement state between the pivot shaft 5 and the pivot hole 2.

When the door 1 is repaired, maintained or inspected, the door 1
To remove the door from the doorway frame 3, the indicator cap 23
Insert the tool from the tool insertion hole 24 of the lever operation screw 8
Can be turned immediately. As a result, as shown in FIG. 1, the pivot shaft 5 can be quickly removed from the pivot hole 2 and the door 1 can be removed from the doorway frame 3. When the lever operating screw 8 is turned in the direction of pulling out the pivot shaft 5 from the pivot hole 2, the tool insertion hole 24 is formed to have a smaller diameter than the screw shaft 8a of the lever operating screw 8.
The indicator cap 23 is pushed by the lever operating screw 8 and removed from the fixed body 4. For this reason, the indicator cap 23 is prevented from remaining on the fixed body 4, and erroneous display is prevented. After the door 1 is mounted on the doorway frame 3, the indicator cap 23 is mounted again on the opening of the screw hole 8b of the lever operating screw 8.

<Second Embodiment> As shown in FIGS. 4 and 5, the pivot shaft operating device according to the second embodiment has substantially the same structure as that of the first embodiment, but the indicator member is an adhesive sheet. The difference is that it is the indicator seal 25 formed in 1.

A tool such as a screwdriver is inserted into the groove 8c of the lever operating screw 8 shown in FIG.
When the screw shaft 8a is screwed inward, the pivot shaft 5 enters the pivot hole 2 and the screw shaft 8a of the lever operating screw 8 is completely recessed inside the fixed body 4 as shown in FIG. Therefore, in order to mark that the engagement between the pivot shaft 5 and the pivot hole 2 is completed, the indicator seal 25 is attached to the screw hole 8 of the fixed body 4.
It is attached to the opening of b. The indicator seal 25 is attached to the decorative plate 18 so as to close the through hole 22 of the decorative plate 18, but when the decorative plate 18 is omitted, it is attached to the fixed body 4.

The indicator seal 25 fits in the gap between the upper edge of the door 1 and the doorway frame 3, and therefore the indicator seal 25 is not interfered by the door 1 and does not come off.
By checking the existence of the indicator seal 25 when the door 1 is opened, it can be confirmed whether or not the pivot shaft 5 is properly inserted into the pivot hole 2. Further, when the tool insertion hole 26 is formed in the indicator seal 25, the state of the lever operation screw 8 can be seen as a peep hole, and the tightening degree of the lever operation screw 8 can be checked at any time. it can.

To remove the door 1 from the doorway frame 3 for repair, maintenance, inspection, etc. of the door 1, a tool can be inserted through the tool insertion hole 26 and the lever operating screw 8 can be immediately turned. Thereby, as shown in FIG. 4, the pivot shaft 5 can be quickly pulled out from the pivot hole 2 and the door 1 can be removed from the doorway frame 3. When turning the lever operation screw 8 in the direction to pull out the pivot shaft 5 from the pivot hole 2,
Since the tool insertion hole 26 has a smaller diameter than the screw shaft 8a of the lever operation screw 8, the indicator seal 2
5 is pushed by the lever operating screw 8 and peeled off from the fixed body 4. Therefore, the fixed body 4 of the indicator seal 25
Is prevented from being left on the screen and erroneous display is prevented. After the door 1 is mounted on the doorway frame 3, the indicator seal 25 is mounted again on the opening of the screw hole 8b of the lever operating screw 8.

<Third Embodiment> As shown in FIGS. 6 and 7, the pivot shaft operating device according to the third embodiment has substantially the same structure as that of the first embodiment, but the indicator member is operated by the lever. The difference is that a means for retaining the screw 8 is provided.

The indicator cap 27, which is an indicator member, is a ring that is attached to the opening of the screw hole 8b when the lever operating screw 8 is recessed in the fixed body 4, and has a tool insertion hole 24 in the center. The outer peripheral portion has a lower flange piece 28 that is locked to the lower opening edge of the through hole 22 formed in the decorative plate 18, and an upper flange piece 29 that is locked to the upper opening edge of the through hole 22. A cylinder piece 30 facing the lower end of the lever operating screw 8 is provided at the upper portion, and a notch 31 extending in the radial direction is provided at a predetermined position.

The tubular piece 30 functions as a means for preventing the lever operating screw 8 from coming off, and when the lever operating screw 8 is loosened in the state where the indicator cap 27 is fitted in the through hole 22, the lower end of the lever operating screw 8 is inserted. Are formed so that they can enter the cylinder. Specifically, the tube piece 30 is formed such that the inner diameter B thereof is substantially the same as or slightly larger than the outer diameter of the lever operation screw 8, and when the lever operation screw 8 loosens and descends, the lower end of the tube piece 30 is of the tube piece 30. It is designed to go inside the cavity. When the lower end of the lever operating screw 8 enters into the tubular piece 30, the tubular piece 30 is prevented from having a small diameter, the outer diameter of the upper flange portion 31 does not become smaller than the diameter C of the through hole 22, and the indicator cap 27 Is prevented from dropping,
This prevents the lever operating screw 8 from coming off.

Tool insertion hole 2 of the indicator cap 27
The tightened state of the lever operation screw 8 can be confirmed from 4. Furthermore, it is possible to insert a tool into the screw hole 8b from the tool insertion hole 24 and further tighten the lever operating screw 8 for adjustment.

Both the lower flange piece 28 and the upper flange piece 29 are formed in a desired shape such as an annular shape and an uneven shape, and the outer diameter C of the lower flange piece 28 and the outer diameter C of the upper flange piece 29 are both the decorative plate 18. When the indicator cap 27 is inserted into the through hole 22 and is larger than the inner diameter A of the through hole 22, the upper and lower flange pieces 29 and 28 sandwich the inner and outer edges of the through hole 22 and fix the indicator cap 27 to the through hole 22. To do.

In order to make it easier to fit the indicator cap 27 into the edge of the through hole 22 from below the decorative plate 18, the upper flange piece 29 is formed so that the outer diameter D thereof is slightly larger than the diameter C of the through hole 22. , Upper flange piece 2
An inclined surface 31 is formed between the stopper 9 and the stopper piece 30 at a position facing the edge of the through hole 22.

[0038]

According to the first aspect of the present invention, the pivot hole formed in the door of the doorway, the fixed body fixed to the doorway frame, the pivot shaft capable of moving in and out of the pivot hole from the fixed body side, and the pivot. A slide hole formed in a fixed body that slidably supports the shaft, a lever supported by the fixed body that is connected to the pivot shaft, and a pivot shaft that moves the pivot shaft through the lever when it is screwed inside the fixed body. In the pivot shaft operating device, the lever operating screw comprises a lever operating screw that is screwed into the fixing body that projects into the outside of the pivot hole via the lever when the lever operating screw is projected to Since the indicator member is attached to the opening of the screw hole of the fixed body while it is immersed inside the fixed body, it is possible to visually check the indicator member from time to time to pivot the pivot shaft and the pivot. The engagement between the can be easily confirmed.

According to the invention of claim 2, in the pivot shaft operating device according to claim 1, since the tool insertion hole having a diameter smaller than that of the lever operating screw is formed in the center of the indicator member, the lever operating screw is installed. The indicator member can be removed from the threaded hole at the same time that the loosening pivot shaft is withdrawn from the pivot hole. Therefore, the indicator member is prevented from remaining on the fixed body and erroneous display is prevented.

According to the third aspect of the present invention, in the pivot shaft operating device according to the first aspect, since the indicator member has the peep hole for checking the state of the lever operation screw, the lever operation is performed from the peep hole. By observing the presence or absence of the screw or the position of the lower end of the lever operating screw, it is possible to easily determine whether the engagement state between the pivot shaft and the pivot hole is good or bad.

According to the invention of claim 4, in the pivot shaft operating device according to any one of claims 1 to 3, the indicator member is provided with means for retaining the lever operating screw. As a result, the pivot shaft can always be held at the proper position.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a pivot shaft operating device according to a first embodiment of the present invention, showing a state in which a pivot shaft is disengaged from a pivot hole.

FIG. 2 is a vertical cross-sectional view of the pivot shaft operating device shown with the pivot shaft inserted into the pivot hole.

FIG. 3 is a bottom view of the pivot shaft operating device.

FIG. 4 is a vertical sectional view showing a pivot shaft operating device according to a second embodiment of the present invention, showing a state where the pivot shaft is disengaged from a pivot hole.

FIG. 5 is a vertical cross-sectional view of the pivot shaft operating device shown with the pivot shaft inserted in the pivot hole.

FIG. 6 is a vertical sectional view of a pivot shaft operating device according to a third embodiment of the present invention, showing a state in which the pivot shaft is inserted into a pivot hole.

FIG. 7 is a bottom view of the pivot shaft operating device.

[Explanation of symbols]

1 ... Door 2 ... Pivot hole 3 ... Doorway frame 4 ... Fixed body 5 ... Pivot axis 6 ... Slide hole 7 ... lever 8 ... Lever operation screw 8b ... Screw hole 23 ... Indicator cap 25 ... Indicator sticker 30 ... Cylinder piece

Claims (4)

[Claims] 1. A pivot hole formed in a door of an entrance / exit, a fixed body fixed to an entrance / exit frame, a pivot shaft capable of coming in and out from the pivot hole from the fixed body side, and a fixed body slidably supporting the pivot shaft. The slide hole formed in the, the lever supported by the fixed body that is connected to the pivot shaft, and the screw shaft that protrudes into the pivot hole and is screwed to the outside of the fixed body through the lever when screwing into the fixed body. In a pivot shaft operating device comprising a lever operating screw screwed to a fixed body that separates the pivot shaft from the pivot hole through a lever when moving forward, with the lever operating screw immersed in the fixed body. A pivot shaft operating device comprising an indicator member attached to an opening of a screw hole of a fixed body. 2. The pivot shaft operating device according to claim 1, wherein a tool insertion hole having a diameter smaller than that of the lever operating screw is formed in the center of the indicator member. 3. The pivot shaft operating device according to claim 1, wherein the indicator member has a peep hole for viewing a state of the lever operating screw. 4. The pivot shaft operating device according to claim 1, wherein the indicator member includes a lever operating screw retaining means.