JPH0317735Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (industrial application field) The present invention relates to Buddhist altars, and can be used for the front door of the Buddhist altar and the door of the zushi, and especially for the middle door. This relates to a split door opening/closing device.

(Prior Art) Conventionally, the front door, middle door, and zushi door of a Buddhist altar are customarily two or four doors that meet in the center, and there is no example of a six-part door.

However, in Utility Application No. 59-067119 previously disclosed by the applicant, a technique for opening and closing six or more doors by using a pantograph has been disclosed, even if the number of doors is six or eight.

(Problem to be Solved) In the above-mentioned Utility Application No. 59-067119, since the pantograph 12 has a pronged portion 14 on each frame mounting piece 13, the door 15 inevitably opens when the door is fully opened as shown in FIG. It has no choice but to be in a slanted position, and
In the case of fully closed doors, it is inevitable that there will be a small gap between the doors, as shown in Figure 3.

B. Composition of the invention (means for solving the problem) In order to solve the above drawback, first consider that when the doors are opened, all the doors are put together and tightly attached to the wall, and when the doors are closed, the doors are close to each other. It is assumed that there is no problem with partially overlapping each other, and considering that the applicant uses the guide rod moving mechanism already disclosed,
When we calculated the opening and closing of three doors on one side by drawing, we were able to achieve our goal with a simple structure as long as we could determine the shape of the guide groove.

(Function) The shape of the guide groove 11 in the present invention is shown in Fig. 1A.
From the position X of the driving point 10 in the closed state shown in FIG. 1 to the driving point 1 in the intermediate state shown in FIG.
A large number of positions of 0 are determined, and finally the locus of the driving point that reaches the position Y of the driving point 10 in the open state shown in FIG.
The force applied to the drive point 10 is calculated assuming that the links 9 and 8 or the fitting points 6 and 5 of the door 3 and door 2 do not reverse the doors 2 and 3, so the force applied to the driving point 10 is the first The doors are opened in an orderly manner as shown in Figures A, B, and C. On the other hand, when the doors are closed, as can be seen from the drawing, there is no risk of the doors 2 and 3 being reversed.

(Embodiments of the present invention) The present invention will be explained based on embodiments and with reference to the drawings.
FIGS. 1A, B, and C are design drawings of the embodiment, in which A is a closed door state, C is an open state, and B is an intermediate drawing in which the door is halfway opened.

The door 1 at the end of the wall is pivoted to the ceiling, and the second door 2 and the third door 3 each have one end connected to a rail 7 fixed to the ceiling that runs through the center of the pivot point in the door closing direction.
The door 1 is slidably and rotatably fitted into the door 1 .
The end opposite to the pivot joint and the midpoint of the door 3 and the end opposite to the fitting of the door 2 and the midpoint of the door 2 are engaged by links 8 and 9, respectively. The length of is the length required when doors 1, 2, and 3 are neatly folded as shown in Figure 1C. A driving point 10 is provided outside the link pivot point of the door 3.

Let X be the position of the driving point 10 in FIG. 1A. When a leftward force that is almost parallel to the rail 7 is applied to point This is Figure B. Furthermore, when a leftward force is applied to the drive point 10, the fitting point 5 of the door 2 and the fitting point 6 of the door 3 slide on the rail 7, and at a point when approximately 2/3 of the entire stroke X-Y has passed. From then on, the locus of the driving point 10 changes from a straight line inclined approximately α=8 degrees with respect to the rail 7 to a curved line, and ends at the opening position Y shown in FIG. 1C.

However, the shape of the X-Y guide groove 11, which is the locus of the driving point 10 shown in this embodiment, is for the case where the width and thickness of the door have the proportions shown in FIG. 1, and α=8. This is also limited to this case, and in other cases it is necessary to draw individual trajectories.

A guide groove 11 is drilled in the ceiling of the Buddhist altar along the locus of this driving point, and a guide rod of the driving device is used to reach the driving point 11.
move.

The details of the drive device are described in Utility Application No. 57-167038, but as shown in Fig. 4, it is fixed to the ceiling.
Small gear 1 rotated by motor 17
Rack 20, 2 that engages 8, 19 from the opposite direction
1 is housed in gear boxes 23 and 24 which are swingably attached to the shaft 22 of a motor 17, and a guide rod 25 at the tip of the rack moves along a zigzag guide groove 26 drilled in the ceiling. be.

Since the present invention has the above-described configuration, if the racks 20 and 21 are to be moved to open the door by normal rotation of the motor, the guide rod 25 will apply force to the driving point 10 to the left in FIG. 1A. Therefore, the door passes through the intermediate state shown in FIG. 1B and finally reaches the open state shown in FIG. 1C.

In the reverse rotation of the motor 17, from C in Figure 1, A is passed through B.
The state becomes the state where the door is closed.

C. Effect of the present invention When using the present invention, as detailed above, three sides of the
The opening and closing of each Buddhist altar door can be done without leaving any gaps between the doors when closed, and when the door is opened, the doors can be folded neatly to create a large, well-organized opening. It is extremely effective when used for doors.

[Brief explanation of drawings]

Figures 1A, B, and C are design drawings of the embodiment of the present invention; Figure 2 shows the state of the pantograph-type door opening;
The figure shows the closed state of the pantograph type door, and FIG. 4 is an explanatory diagram of the drive device of the present invention. 1... Door at the end of the wall, 2... Second door, 3... Third door
Door, 4... Pivot, 5, 6... Fitting, 7... Rail, 8, 9... Link, 10... Driving point, 11...
... Guide groove, 12 ... Pantograph, 13 ... Mounting piece, 14 ... Fork, 15 ... Door, 16 ... Fixing, 17 ... Motor, 18, 19 ... Small gear, 2
0, 21...Rack, 22...Motor shaft, 23,
24... Gear box, 25... Guide rod, 26... Zigzag groove. X...Position of driving point 10 when door is closed, Y...
...The position of the driving point 10 when the door is opened, α...The angle between the straight line part of the locus of the driving point and the rail.

Claims (1)

[Scope of utility model registration request] When opening and closing the Buddhist altar door, which consists of six doors in total, three on each side, the door 1 at the end of the wall is pivoted 4 to the ceiling, and the center lines of the second door 2 and third door 3 meet the pivot point. slidingly and rotatably fitted into the linear rail 7 passing through;
6, the other end of door 1 and the center of door 2, and the other end of door 2 and the center of door 3 are linked 8 and 9, respectively, and doors 1, 2, and 3 have the lengths of links 8 and 9 that are neatly folded. The drive point 10 is slightly outward from the link pivot point of the door 3, and is slightly linearly away from the rail 7 from the drive point X when the door is closed, toward the drive point Y when the door is opened from past the center. A Buddhist altar door opening/closing device characterized in that a driving point 10 is moved by a guide rod of a driving device through a guide groove 11 bored in the ceiling of a Buddhist altar that curves sharply.