JP3878692B2 - Door set - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shaft (door shaft) of a shaft hanging door and a bearing engaged therewith.
[0002]
[Prior art]
Conventionally, a method of attaching the door to the door frame by a hinge has been taken, but with the recent increase in weight of the door, a shaft hanging door is frequently used. In this case, also from the ease of installation of the door, even if the lower door shaft is fixed, the upper door shaft needs to be able to enter and exit. Conventionally, one end of a lever is pivotally attached to the lower end of the upper door shaft, and the other end of the lever is moved up and down to allow the door shaft to enter and exit from the upper surface of the door. However, in this case, a space for installing the lever is necessary, and it is necessary to carve a considerable notch on the upper surface of the door.
[0003]
[Problems to be solved by the invention]
The present invention simplifies the mechanism for raising and lowering the shaft, reducing the installation space to prevent deterioration of the strength of the upper part of the door, and allowing the operation of raising and lowering the shaft only from the prospective surface of the door Therefore, it is possible to prevent the door from being detached when the door is closed, and as a safety measure against accidental dropping of the door, and to make the bearing opening larger in diameter than the inside (shaft stop). Thus, the door shaft can be easily inserted into the bearing, and the door installation work can be facilitated.
[0004]
[Means for Solving the Problems]
The door set which concerns on this invention is the state which made the door shaft 4 protrude from the upper surface or lower surface of the door 2 in the door set which consists of the rotating shaft 4 of the door 2, and the bearing 3 which supports this door shaft 4 rotatably. And a link mechanism 6 for moving between the state accommodated in the door 2, and the link mechanism 6 includes first and second link levers 7 and 8 that are pivotally attached to each other. The other end of the first link lever 7 is attached to the door shaft 4 and the other end of the second link lever 8 is attached to the door 2 side, and the other end of the second link lever 8 is the door. The drive shaft 10 is configured to rotate from the two prospective surfaces 19 and has an L-shaped stabilizing spring 16 and a protrusion 15 for locking the door shaft 4 in the protruding state and the retracted state, respectively. , the door shaft 4 abuts against the bottom of the shaft housing part 11 in the storage state of said door shaft, said door shaft 4 The second link lever 8 connecting portion passes over fulcrum of the first and second link levers 7 and 8 in the projecting state abuts the abutment pin 20, furthermore, the bearing 3 for accommodating the door shaft 4 The opening 17 is characterized by having a larger diameter than the inside (the shaft stopper 18).
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, reference numeral 1 denotes a shaft fitting, which is fixed to the upper part of the door 2. Reference numeral 3 denotes a bearing which is embedded in the door frame 5 so that the door shaft 4 of the shaft fitting 1 is engaged with the shaft. The door shaft 4 is accommodated in the shaft accommodating portion 11 so as to be movable up and down, and a link mechanism 6 is provided at a lower portion thereof. As shown in FIG. 2, the link mechanism 6 includes first and second link levers 7, 8. One end of the first link lever 7 is connected to the tail of the door shaft 4, and the other end is connected to a pin 9. The second link lever 8 is rotatably connected to the two link levers 8, and the other end of the second link lever 8 is a drive shaft 10 and is pivotally attached to the door 2 side.
[0006]
The drive shaft 10 is supported by a rotary shaft support fitting 12 that is fixed below the shaft storage portion 11. A slit 14 is cut in the end surface of the drive shaft 10, and the door shaft 4 is moved by rotating the drive shaft 10 with an unillustrated driver or the like through an adjustment hole 13 carved in the prospective surface 19 of the door 2. It can be moved up and down to the retracted state of FIG. 2A and the protruding state of FIG.
[0007]
FIG. 2A shows the retracted state of the door shaft 4. In this state, the door shaft 4 comes into contact with the bottom of the shaft housing 11, and the slit 14 of the drive shaft 10 is carved as shown in FIG. 3. This state is fixed by the projection 15 and the stabilization spring 16 provided on the surface opposite to the surface. FIG. 2 (b) shows the protruding state of the door shaft 4. The connecting portion of the first and second link levers 7 and 8 passes through the upper fulcrum and the second lever 8 contacts the pin 20 and is driven in the same manner as described above. This state is secured by the protrusion 15 and the stabilization spring 16 provided on the back surface of the shaft 10.
[0008]
In FIG. 1, the door frame 5 is provided with a bearing 3 for engaging the door shaft 4. In the bearing 3 of the present invention, the diameter of the opening 17 on the side where the door shaft 4 is inserted is a little larger than the diameter of the inner shaft stopper 18. This is to facilitate insertion when the door shaft 4 is engaged with the bearing 3. The door shaft 4 must be pivotally attached to the shaft locking portion 18 of the bearing 3 within a rotatable range. If the diameter of the opening 17 is substantially the same as the diameter of the door shaft 4, the door 2 is attached to the door frame 5. In the case where the door shaft 4 is mounted, the door shaft 4 is difficult to insert into the bearing 3. The present invention avoids this drawback.
[0009]
In the present embodiment, the door set of the present invention is provided on the upper portion of the door 2, but as another embodiment, the door set of the present invention may also be provided on the lower portion of the door 2.
[0010]
【The invention's effect】
As described above, in the present invention, the door shaft 4 can be easily projected and retracted from the adjustment hole 13 of the prospective surface 19 of the door 2 and only from the adjustment hole 13 in the prospective surface 19. The work can be performed only when the door is opened, and inadvertent attachment / detachment when the door is closed is prevented, thereby ensuring safety.
[0011]
In addition, the projection 15 and the stabilization spring 16 of the link mechanism 6 have an effect that the retracted state and the protruding state of the door shaft 4 are surely stopped.
[0012]
Further, since the diameter of the opening 17 of the bearing 3 is slightly larger than the diameter of the shaft stopper 18, the door shaft 4 is inserted into the bearing 3 when the door 2 is mounted on the door frame 5. It is easy and the effect of the convenience of assembly work is remarkable.
[Brief description of the drawings]
FIG. 1 is an external view showing a cross section of a part of a door set. FIG. 2 shows a link mechanism of a door shaft, (a) shows a state in which the door shaft is stored, and (b) shows a door shaft. Is a state of protruding.
FIG. 3 is a perspective view of the relationship between the link mechanism and the L-shaped stabilizing spring.
DESCRIPTION OF SYMBOLS 1 Shaft bracket 2 Door 3 Bearing 4 Door shaft 5 Door frame 6 Link mechanism 7 1st link lever 8 2nd link lever 9 Pin 10 Rotating shaft 11 Shaft storage part 12 Rotating shaft support bracket 13 Adjustment hole 14 Slit 15 Protrusion 16 L shape Stabilizing spring 17 Opening 18 Shaft stop 19 Prospect surface 20 Contact pin

Claims (1)

In a door set comprising a rotation shaft of a door and a bearing that rotatably supports the door shaft,
A link mechanism is provided for moving the door shaft between a state of protruding from the upper or lower surface of the door and a state of being housed in the door,
The link mechanism has two first and second link levers pivotally attached to each other. The other end of the first link lever is on the door shaft, and the other end of the second link lever is on the door side. The other end of the second link lever is configured as a drive shaft for rotating from the prospective surface of the door, and the door shaft is fixed in the protruding state and the retracted state. It has an L-shaped stabilization spring and a protrusion,
In the retracted state of the door shaft, the door shaft abuts the bottom of the shaft storage portion, and in the projected state of the door shaft, the connecting portion of the first and second link levers passes through the upper fulcrum and the second link lever Abut the contact pin,
Furthermore, the opening of the said bearing which accommodates a door axis | shaft is made larger diameter than a shaft stop part, The door set characterized by the above-mentioned.

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