JPH0645025Y2 - Lower pivot tool - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a lower pivot tool capable of easily and quickly adjusting the height of a hanging door.

[Conventional technology and its problems]

Conventionally, there are folding-type hanging doors, and the hanging door on the end side simply rotates around the pivot, but when setting the hanging door at the end, the lower end of the hanging door The height of the hanging door is adjusted by the side pivot. The lower pivot is configured to expand and contract in the vertical direction due to the configuration of the screw rod and the inner screw portion, and the expansion and contraction is performed by rotating the nut provided on the screw rod with a tool such as a spanner. Actually, there is only a small gap between the bottom of the hanging door and the floor, so it is difficult to do,
In addition, the wrench is removed from the nut and re-attached to the initial position while the nut is rotated only slightly, which is troublesome and time-consuming.

[Means for Solving the Problems]

Therefore, as a result of earnest and repeated studies to solve the above-mentioned problems, the inventor has found that the invention is a metal screw rod having a screw part at the upper part in the longitudinal direction and a shaft support part at the lower part, and a flange part formed between them. , A lock nut is screwed into the shaft support portion above the flange portion, and at least the upper surface and the peripheral surface of the lock nut are wrapped and fixed by an adjustment dial made of synthetic resin having a diameter larger than the lock nut diameter, By using the lower pivot tool capable of screwing the screw portion of the metal screw rod to the inner screw portion of the tubular portion forming the screw portion, the work of adjusting the height of the hanging door can be efficiently performed. Therefore, the above problems are solved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 is a fixing cylinder body, and an inner screw portion 1a is provided on an inner peripheral side surface thereof.
Are formed.

Further, the outer peripheral side surface of the fixing cylinder 1 may be finely roughened to form a roughened surface 1b.

2 is a metal screw rod, and a screw part 2 is provided on the upper side in the longitudinal direction.
a, a shaft supporting portion 2b is formed on the lower end side, and the screw portion 2a and the shaft supporting portion are formed.
A collar portion 2c is formed in the middle of 2b. In many cases, the collar portion 2c has a hexagonal outer periphery (see FIGS. 2 to 5).
(See the drawing), and may be formed in a disc shape or an elliptical shape.

Reference numeral 3 denotes a lock nut, which is screwed onto the screw portion 2a of the metal screw rod 2 from above. Reference numeral 4 denotes a synthetic resin adjustment dial, which has a diameter larger than the diameter of the lock nut 3, and is wrapped around and fixed to at least the upper surface and the peripheral surface of the lock nut 3.

Specifically, there is an adjusting dial 4 having a recess 4a into which the lock nut 3 is fitted, and a thin plate collar 4b having a through hole is formed on the upper surface side of the recess 4a (Fig. 2, Fig. 2). (See FIGS. 5 and 6). Here, the adjustment dial 4
It is preferable to attach the lock nut 3 to the lock nut 3 from the upper side after molding the respective members, and the thin plate collar 4b is fixed to the upper surface side of the lock nut 3 (see FIG. 2). . As another embodiment, the seventh embodiment
As shown in the figure, the lock nut 3 has a disc shape,
Synthetic resin such as plastic on the outer circumference and upper and lower surfaces,
The adjustment dial 4 may be formed by being coated at the time of molding in a factory or the like. The adjusting dial 4 is made of nylon, plastic or the like, but it is preferable that it has a good feel and is formed in a disc shape. The outer circumference of the gear may be configured to prevent slipping when it is rotated by a fingertip (see FIGS. 3, 4 and 5).
(See FIG. 6). In this way, change the diameter of the lock nut 3 to D ₁
If the diameter of the adjusting dial 4 is D ₂ , then D ₁ <D ₂ .

As described above, the screw portion 2a of the metal screw rod 2 with the lock nut 3 and the adjustment dial 4 is screwed into the inner screw portion 1a of the fixing cylinder 1 from below.

Reference numeral 5 is a lower pivot support fitting, and a pivot support hole 5b is formed in the center of the support body 5a. A is a hanging door, which is a hanging type. Mounting portions 7 are formed at both ends and a lower end portion of the hanging door plate 6 of the hanging door A. The mounting portion 7 is
It has a hole shape into which the fixing cylinder 1 can be fitted.

In the figure, 8 is an upper pivot metal fitting, 9 is a hanging door rail, 10 is a hinge,
11 is an upper pivot support hole.

[Action]

First, the entire screw portion 2a of the metal screw rod 2 is screwed into the fixing cylinder 1 of the lower pivot device of the present invention attached to the lower end surface of the hanging door A. Next, the upper pivot metal fitting 8 provided at the upper end of the hanging door A is inserted into the upper pivot support hole 11 (see FIGS. 9 and 10), and the pivotal support portion 2b of the lower pivot tool of the hanging door A is moved to the lower pivot. Insert into the pivot support hole 5b of the support fitting 5 (11th
(See Fig. 12). At this time, as shown in FIG. 11, the lock nut 3 and the adjustment dial 4 of the lower pivot tool are brought into contact with directly above the collar portion 2c, and the metal screw rod 2 thereof is fixed to the fixing cylinder body 1. Screw it all the way in (upward). Next, when the adjustment dial 4 is rotated so as to be loosened, that is, when the metal screw rod 2 is rotated in a direction away from the fixing cylinder 1, the fixing cylinder 1 is fixed to the hanging door A. Due to the rotation of the metal screw rod 2, the hanging door A fixed to the fixing cylinder 1 also rises (see FIG. 12). Then, with the hanging door A reaching the desired height h, the adjustment dial 4
Then, only the adjustment dial 4 moves up and comes into contact with the lower surface of the hanging door A, and the metal screw rod 2 of the adjusting dial 4 moves.
It is firmly fixed to (see Fig. 13).

[Effect of device]

In the present invention, the upper portion in the longitudinal direction is the screw portion 2a, the lower portion is the shaft supporting portion 2b, and the metal screw rod 2 is formed with the collar portion 2c therebetween, and the lock nut is attached to the shaft supporting portion 2b above the collar portion 2c. 3 is screwed, and at least the upper surface and the peripheral surface of the lock nut 3 are wrapped and fixed by an adjustment dial 4 made of synthetic resin having a diameter larger than the diameter of the lock nut 3 to form an inner screw portion 1a. On the inner screw portion 1a of the body 1, the screw portion 2a of the metal screw rod 2
By using the lower pivot tool that can be screwed,
In addition, the height of the hanging door A can be easily and quickly adjusted with only a fingertip without a tool. Secondly, the hanging door is not damaged, and thirdly, the structure is simple and can be provided at low cost.

To elaborate on these effects, first, in the past, the hanging door on the end side simply rotates around the pivot, but when setting the hanging door on the end, the lower end side of the hanging door is set. The height of the hanging door is adjusted by the pivot. The lower pivot expands and contracts in the vertical direction due to the configuration of the screw rod and the inner screw portion, but the expansion and contraction is performed by rotating the nut provided on the screw rod with a tool such as a spanner. It is difficult to do because there is only a small gap between the bottom of the hanging door and the floor, and it is troublesome and time-consuming to remove the spanner from the nut and put it back to the initial position while turning the nut slightly. Met. However, in the present invention, since the adjusting dial 4 has a diameter larger than the lock nut 3 diameter, the adjusting dial 4 can be easily rotated with only the fingertips without using a tool, which is extremely simple and quick. There is an advantage that the hanging door A can be installed while vertically adjusting A.

Particularly, the adjusting dial 4 is wrapped around and fixed to the lock nut 3, and by turning the adjusting dial 4 in a direction away from the fixing cylinder 1, the adjusting dial 4 and the metal screw rod 2 are Can be rotated at the same time, and the hanging door A can be raised to an appropriate height for adjustment.

In this way, since the height of the hanging door A is maintained, by turning the same adjustment dial 4 in the opposite direction this time, the adjustment dial 4 approaches the side of the fixing cylinder 1 and finally the adjustment is performed. The dial 4 is brought into contact with the lower end side of the hanging door A so that it can be locked.

As described above, by providing the adjustment dial 4 on the lock nut 3, by rotating the adjustment dial 4 in one direction, it is possible to rotate the metal screw rod 2 and adjust the rising of the hanging door A. Then, this time, by rotating the adjustment dial 4 in the opposite direction, there is an effect that the original lock function can be achieved.

In addition, at least the upper surface and the peripheral surface of the lock nut 3,
Since it is wrapped and fixed with the adjustment dial 4 made of synthetic resin,
The lock nut 3 itself does not abut the hanging door A, but the synthetic resin material of the adjustment dial 4 abuts and the lower surface of the hanging door A can be prevented from being damaged.

Further, since the adjustment dial 4 is made of synthetic resin, the feeling of touch during adjustment is good, and the burden on the operator is reduced.

As described above, even though the structure is simple by simply attaching the adjustment dial 4 made of synthetic resin to the conventional member, the adjustment is easy and damage is prevented. It can be held by the screw rod 2 itself and becomes strong, and it is possible to provide a device utilizing the characteristics of metal and synthetic resin.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which FIG. 1 is a schematic view of a hanging door to which the present invention is attached, FIG. 2 is a sectional view showing the present invention attached to a lower portion of the hanging door, FIG. 3 is a partially cutaway perspective view of the present invention, FIG. 4 is a perspective view of essential parts of the present invention, FIG. 5 is an exploded view of the present invention, and FIG. 6 is an exploded perspective view of a lock nut and an adjustment dial. FIG. 7 is a sectional view of a main part of a lock nut and an adjusting dial of another embodiment, and FIG. 8 is a perspective view showing a state in which a fixing cylinder is attached to a lower portion of a hanging door, FIG. 9, and FIG.
FIG. 11 is a schematic view showing a state in which a hanging door is attached, and FIGS. 11 to 13 are sectional views showing working steps in a state in which a lower portion of the hanging door is attached using the present invention. 1 ... Fixing cylinder, 1a ... Inner screw part, 2 ... Metal screw rod, 2a ... Screw part, 2b ... Spindle part, 2c ... Flange part, 3 ... Lock nut, 4 ... Adjustment Dial.

Claims (1)

[Scope of utility model registration request] 1. A metal screw rod having an upper portion in the longitudinal direction as a screw portion and a lower portion as a shaft supporting portion, and a flange portion formed therebetween, and a lock nut is screwed to the shaft supporting portion above the collar portion. At least the upper surface and the peripheral surface of the lock nut are wrapped and fixed by an adjustment dial made of synthetic resin having a diameter larger than the lock nut diameter, and the inner screw portion of the tubular portion having the inner screw portion is provided with the metal screw rod. A lower pivot tool characterized in that the screw part can be screwed.