JPS591575Y2 - Operating mechanism for opening and closing the Buddhist altar door with cycloid movement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing device for a working layer having a semi-elliptical front surface, and more particularly to an opening/closing device operated by a telescopic arm that moves in a cycloid.

Conventionally, the door of a zushi with a semi-circular front and four-split double doors was opened and closed manually, but the applicant proposed the Utility Model Application filed in 1983 as a device that made it possible to open and close the door manually or electrically by operating only a few points.
-173935 (Refer to Utility Model Publication No. 57-97477) Buddhist monk door opening/closing device, Utility Model 55-186258 (Refer to Utility Model Application Publication No. 57-107490) Reduction device/clutch mechanism for opening/closing Buddhist monk door, Utility Model Sho 55-186258 55-186259 (Refer to Japanese Utility Model Publication No. 107491/1983) Electric Buddhist monk door opening/closing device
(Refer to the publication) We have disclosed an operation box with a speed reduction for the opening/closing device.

However, all of these are about zushi with a semicircular front surface, but in recent years, the shape of the zushi with a wide front width and shallow depth has been preferred, and as a result, the shape of the zushi is The shape has a semi-elliptical front surface, which is a quarter circle with a flat front surface, and the conventionally disclosed technology cannot necessarily be said to be an ideal opening/closing device, and a new method has been desired.

The present invention is an invention that meets that need, and will be explained in comparison with the conventional one.

First, a door opening/closing device for a door opening/closing device for a zushi with a semicircular front and four-split double doors will be described.

In Fig. 1, arc-shaped guide holes 3 are provided symmetrically in the ceiling plate 2 of the zushi 1, which has a semicircular front surface, and the four-part doors A and B and C and D are each hinge-engaged, and the door B A floating shaft 4 is installed in the guide hole 3 directly above the joining part of C and C.
It penetrates through and protrudes from the upper part of the ceiling plate 2, and engages with the retaining holes of the two telescoping arms 6 of the actuating mechanism 5 provided on the ceiling plate 2.

Figure 2 shows the inside of the actuating mechanism 5. Out of gears 8 and 9 with the same number of teeth that are pivotally supported on a stand 7 and mesh with each other, a lead disk 10 is fixed to gear 8, and a thin lead disk 10 is fixed to the gear 8. A twisted steel wire 15 is locked and fixed with a stopper 17.

Telescopic arms are fixed to the gears 8 and 9 in opposite directions.

A separate operation box 11 is provided with a lead disk 1 that is pivotally supported on a stand 12.
3 is rotated by a handle 14, and a thin twisted steel wire 15 is locked to the lead disk 13 and fixed by a stopper 18.

A thin stranded steel wire 15 covered with a protective tube 16 connects the operating mechanism 5 and the operation box 11 without slack.

With such a configuration, the handle 14 of the operation box 12
When rotated in the direction shown in the figure, the gear 8 of the actuating mechanism 5 rotates in the direction of the arrow due to the movement of the thin twisted steel wire 15 that is locked to the lead disk 13, so that the telescopic arm 6 on the side of the gear 8 makes the motion of opening the door.

Since the gear 9 that meshes with the gear 8 moves in the completely opposite direction, the telescopic arm 6 on the side of the gear 9 also moves to open the door.

When the bundle 14 rotates in the opposite direction, ie, moves from the dotted line position to the solid line position, the gears 8, 9 rotate in the direction completely opposite to that described above, and the telescoping arm 6 performs a door closing movement.

Since the operating mechanism 5 is as described above, please refer to FIG. 6 which shows the opening/closing operation of the door.

In FIG. 6, 40 is the rear surface of the semicircular zushi, 41 is the front surface of the semicircular drawing, 42 is the center line of the guide hole, and 43
indicates the locus of the tip of the fixed part of the telescopic arm 6.

Therefore, the minimum extension of the telescoping shaft moving in the telescoping arm is 4
4 and the maximum elongation 45 to move the swing shafts 4 of doors B and C. However, when this is applied to an oval zushi, the maximum elongation 44 becomes even larger, and doors B and C
It becomes extremely difficult to move the object, and in some cases, it may not move no matter how much force is applied.

The object of the present invention is to eliminate the drawbacks of the prior art described above and to provide an operating mechanism that can easily open and close the four-part double door of a long-standing circular zushi.

In short, the present invention is characterized in that in the conventional mechanism, the part fixed to the gear of the telescoping arm moves in a circular motion, whereas in the present invention, the part fixed to the gear of the telescoping arm has a cycloidal motion.

The present invention will be explained based on embodiments and with reference to the drawings.

FIG. 3 is a plan view drawn on the same scale in comparison with the conventional actuation mechanism 5, in which a lead disk 20 is pivotally supported in the center of the actuation mechanism 19 and a thin stranded steel wire supported by a guide tool 21. A protective tube 16 containing a protective tube 15 is fixed.

A thin twisted steel wire 15 is fixed to a lead disk 20.

(Illustration omitted). In order to better understand the embodiment, FIG. 5 shows a bottom view of the actuating mechanism 19, and FIG. 4 shows a view taken along the line X--X in FIG.

In the actuating mechanism 19, a rectangular stand 20 projects three legs 23 having holes for screwing into the ceiling plate 2, and the front and rear sides form a downwardly U-shaped front bend 24 and rear bend 25. , a shaft bearing 26 is provided in the center of the stand 20 to pass through it, and a mating shaft 27 is rotatably fitted from below the shaft bearing 26.
A receiving shaft 28 is fixed to the upper end of the receiving shaft 28, and a lead disk 20 is fixed to this receiving shaft 28.

Now, a rack 29 is fixed inside near both ends of the rear bend 25, and a gear 30 meshing with this rack 29 is supported by the front bend 24 and the rear bend 25 while meshing with the rack 29, and can be moved freely. There is.

A telescoping arm 6 is fixed to the gear 30, and a pedestal 31 of the telescoping arm is fixed concentrically with the gear 30 and swings on the upper surface of the front bend 24.

The pedestal 31 has bends 32 and 32 to fix the cylinder 33, and a telescopic shaft 34 is movably disposed inside the cylinder 33, and its tip engages with the floating shaft 4 of the door B or C. A coordinating ring is provided.

Further, an arm 36 is fixed to a joint shaft 27 rotated by the lead disk 20, and links 37 are provided between both ends of the arm 36 and the centers of the gears 30 on both sides, and are rotatably supported.

With such a configuration, the thin twisted steel wire 15 inside the protective tube 16, which is moved manually or electrically in FIG. 3, causes rotational movement of the lead disk 20.

The rotational movement of the node disk 20 becomes the rotational movement of the arm 36 via the receiving shaft 28 and the mating shaft 27.

In FIG. 5, when the arm 36 rotates in the direction of the arrow, the center of the gear 30 is pushed through the link 37 in the direction of the arrow in the opposite direction as shown in the figure.
rotate in the direction of the arrow in the figure while engaging with the racks 29 and 29, respectively, and therefore the telescoping arms on both sides also rotate while moving in the direction of the arrow on the opposite side.

Figure 7 shows the movement of this telescoping arm.
8 is the back surface of the semi-elliptical Zushi, 49 is the front surface of the semi-elliptic Zushi, and 50 is the locus of the center of the guide groove that fits there.

Therefore, since the center of the telescoping arm moves linearly and rotates, for example, the locus drawn by the tip of the pedestal 31 of the telescoping arm becomes a cycloid, as shown in the figure.

As shown in FIG. 7, there is not much difference between the minimum extension 52 and the maximum extension 53 of the telescopic arm in the semi-long circular zushi, and therefore the relative movement between the cylinder 33 of the telescopic arm and the telescopic shaft 34 is small and the frictional resistance is reduced. Almost never occurs.

Furthermore, the relationship between the gear 30 and the rack 29 and the arm 3
If the relationship between the 6 and the link 37 is suitable, it is possible to meet the request for a quarter-fold double-sided door for a semi-elliptic zushi of any shape.

Figure 7 shows a comparison between a semicircular Zushi and a semi-elliptical Zushi when using telescopic arms of the same size.
(1) The back length 46 of the semi-elliptical Zushi is greater than the back length 38 of the semi-circular Zushi, so the recently fashionable front is essentially compatible with the wide and narrow Zushi.

According to the present invention, the configuration of the telescopic arm that utilizes cycloidal motion makes it possible to easily operate manually or electrically the four-split double door of a semi-elliptical zushi with a wide front and narrow depth, which is highly effective. be.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the opening/closing mechanism of the conventional four-part double door of a zushi with a semicircular front, Figure 2 is a diagram showing its operating mechanism and its relationship with the operation box, and Figure 3 is similar to Figure 2. A plan view of the embodiment of the present invention drawn on the same scale, FIG. 5 is a bottom view thereof, FIG. 4 is a view taken along the line X-X in FIG. FIG. 7 is a diagram superimposing a size comparison with a conventional one on an explanatory diagram of the motion locus of the embodiment of the present invention. 1: Zushi, 2: Ceiling board, 3: Guide hole, 4: Swing axis, 5:
Actuation mechanism, 6: Telescopic arm, 7: Main body, 8, 9: Gears,
10: Lead disk, 11: Operation box, 12: Stand, 13: Lead disk, 14: Handle, 15: Thin stranded steel wire, 16
:Protective tube, 17.18: Stopper, 19: Operating mechanism, 2
0: lead disc, 21: guide, 22: stand, 23: leg,
24: Front bending, 25: Rear bending, 26: Bearing, 27:
Joint shaft, 28: Receiving shaft, 29 Nirakku, 30: Gear, 31:
Pedestal, 32: Bending, 33: Cylinder, 34: Telescopic axis, 35: Engagement ring, 36: Arm, 37: Link, 38: Semi-circular Zushi width, 39: Semi-circular Zushi depth, 40: Semi-circular Zushi back , 41: Front side of the semicircular Zushi, 42: Center line of the semicircular Zushi guide hole, 43: Trajectory of the tip of the semicircular Zushi telescopic arm, 44: Extension of the depth of the Semicircular Zushi,
45: Semi-circular Zushi depth extension, 46: Semi-circular Zushi depth, 49: Semi-circular Zushi depth, 50: Semi-circular Zushi guide hole center line, 51: Semi-circular Zushi depth arm tip locus, 52: Semi-circular Zushi depth Extension, 53: Semicircular Zushi depth extension.

Claims (1)

[Scope of utility model registration request] The oscillating motion transmitted manually or electrically is captured as a circular oscillating motion of the node disk, and both ends of the arm, which rotates coaxially with the lead disk, engage and rotate with the rack within the restraint member, and each moves linearly in opposite directions. The cycloid is characterized by a configuration in which a telescopic arm is fixed to each gear and the circular swinging motion of the lead disk is provided as a cycloidal motion of the telescopic arm. The operating mechanism for opening and closing the door of a Buddhist monk in motion.