JPS6130401Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a door device that allows the opening and closing direction of the door of a switchboard, refrigerator, etc. to be freely changed.

Conventionally, the doors of switchboards, etc., have been fixed to open to the right or left, but either one is determined at the design stage and manufactured.
That change is not easy.

Figures 1 to 3 are schematic diagrams showing the opening and closing states of the door of the switchboard, and a, b, and c are the panels a ₁ , b ₁ , c ₁ , a ₂ , and b ₂ , respectively, which are arranged in rows. , c ₂ , a ₃ , b ₃ ,
c ₃ is each door. Normally, panels are made to either open on the right or on the left, as shown in Figure 1, but the drawback of this is that even when the door is opened, the door must pass through the adjacent panel, making it difficult to assemble the equipment inside the panel. It is difficult to perform test adjustments, wiring work after on-site installation, and mutual checks between special panels for maintenance and inspection. For example, board a
When checking between and b, door _b1 becomes a gap. If you try to improve this as shown in Figure 2, the doors b ₂ and c ₂ will become obstacles. The same problem occurs even if the arrangement is as shown in FIG.

Furthermore, depending on the installation location and ease of use, it is desirable for refrigerator doors to open to the right or left, but this cannot be changed freely.

Previously, this type of improvement was made in July 1964.
There was a notice published on the 23rd of May, 1977-17053. This consists of rotatable levers installed parallel to each other at both ends of the door, rods that are driven in the axial direction according to the rotation of these levers, and a frame on the panel side that supports the door. It consists of a support that is provided corresponding to the rod and that engages with the rod and supports the door with the frame, and a removable handle that fits with each lever and operates the rotational movement of the lever. When the rod was fitted into the lever on the side that opens the door and rotated, the rod was disengaged from the support and the door could be opened. When the rod and support are not engaged, the handle cannot be removed from the lever, but when they are engaged, the handle can be attached and detached. An interlock is provided by the groove in the lever and the protrusion on the part of the handle that is inserted into the lever. I was doing it.

With this door device, when opening or closing the side opposite to the side where the handle is inserted into the lever, it is necessary to remove the handle from the lever and insert it into the lever on the opposite side. It also had the disadvantage of being lost.

This idea was made in order to eliminate the drawbacks of the conventional ones as mentioned above.The door is supported near both the left and right sides of the door, and the support of the door on either the left or right side is released. The object of the present invention is to provide a double door device which can be opened and closed from any direction and is equipped with an interlock device that prevents the door from coming off due to the non-supporting state on the supporting side.

An embodiment of the present invention will be described below with reference to the structural diagram of a door device shown in FIG. In the figure, 1 is the door body, 2 is a frame supporting the door body 1, 31, 3
Reference numerals 3, 41, and 43 designate frame-side engaging tools provided on the frame body, which in this case are slots. 32, 34, 42, 4
4 is a rod that engages with the holes 31, 33, 41, 43, respectively, and guides 45, 46, 4.
7, 48, it is mounted so as to be movable in the vertical direction. Reference numerals 51 and 52 indicate a crank 53 and a rod 3 having a handle 54 for opening and closing the door body 1 with links.
2 and 34, and are pivotally connected to each other. The crank 53 has a peripheral surface 53b and a recess 53a cut out.

Here 31, 32, 33, 34, 51, 52,
53 and 54 constitute a left and right engagement device 101,
By operating the handle 54, the rods 32, 34 and the hole 3
1 and 33 can be selectively engaged or disengaged.

Reference numerals 61 and 62 indicate a crank 63 and a rod 4 having a handle 64 for opening and closing the door body 1 with links.
2 and 44, and are pivotally connected to each other. Like the crank 53, the crank 63 has a peripheral surface 63b and a recess 63a.

Here 41, 42, 43, 44, 61, 62,
63 and 64 constitute the right engagement device 102, which is provided opposite to the left engagement device 101, and is connected between the rods 42 and 44 and the holes 41 and 43 by operating the handle 64. can be selectively engaged or disengaged. Reference numeral 71 denotes an interlock rod for preventing the door from detaching, and its tips face the cranks 53 and 63, respectively, and when the left and right engaging devices 101 and 102 are engaged, the crank 53 and 63 recessed portion 53a,
63a. 72 is a guide for moving the rod 71 left and right. This 71, 72, 53a,
53b, 63a, and 63b constitute an interlock device 70 for preventing door separation. The details of this interlock device 70 are shown in FIGS. 5a and 5b.
As shown in the figure, when the left and right engaging devices 101 and 102 are in the engaged state, the distance between the recesses 53a and 63a is l, and the notch size of the cranks 53 and 63, that is, the projection 5
3b, 63b and the recessed portions 53a, 63a.
l ₁ and the length L of the rod 71, the length of the rod 71 is L=l-l ₁ which is slightly shorter than this, and L>l-2l ₁ . In this way, when the handle 54 is rotated to disengage the left engagement device 101 as shown in FIG. 5b, the convex portion 53a of the crank 53 presses the rod 71 and moves it to the right. and engages closely with the recess 63a of the crank 63, making the crank 63 unrotatable. Therefore, the right engaging device 102 is interlocked in the engaged state, and the door body 1 can be opened from the left. Since there is a condition L>l-2l ₁ , both the left and right engaging devices 101, 102 cannot be in the disengaged state at the same time. When opening the door body 1 from the right side, it can be done by operating the right engaging device in the same way as from the left side. In this way, it can be easily opened and closed from both the left and right sides.

FIG. 6 is a view of the main part of another embodiment of the interlock device, in which the recess 63a of the crank 63 is a circular groove, and the tip of the rod 71 is circular to engage with this groove. Further, a roller may be attached to this tip to facilitate contact movement with the recess 63a.

There are times when it is convenient to remove the door body 1 from the frame 2 during assembly and wiring or testing. In this case, one side of the door body 1 is opened and the engagement device on the open side, for example 101, is left open and the handle 53 is opened.
When the recess 53a and the left end of the lever 71 are placed opposite each other, and the handle 64 on the support side is rotated to disengage the right engagement device 102, the door body 1
can also be removed from the frame 2.

As explained above, this invention is a door device that has engaging devices on the left and right sides of the door body and can be opened and closed from the left or right by disengaging either of the engaging devices. In addition, by providing an interlock device between the left and right engaging devices to keep one of the engaging devices engaged, the double door device is simple and convenient to use. .

[Brief explanation of the drawing]

Figures 1, 2, and 3 are schematic diagrams showing the opening and closing states of the panel and door, Figure 4 is a structural diagram of a double door device showing an embodiment of this invention, and Figures 5a and b are diagrams of this device. A structural diagram of an interlock device according to an embodiment of the invention,
FIG. 6 is a structural diagram of the main parts of another embodiment of the interlock device of this invention. In the figure, 1 is the main body, 2 is the frame, 31, 33, 41, 43 are holes, 3
2, 34, 42, 44 are rods, 51, 52, 6
1, 62 are links, 53, 63 are cranks, 53
a, 63a are concave parts of the crank, 53b, 63b are peripheral parts of the crank, 54, 64 are handles, 70 is an interlock device, 71 is a rod, 101 is a left engagement device, 102 is a right engagement device It is. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A door body, a frame for supporting the door body provided opposite to the door body, a rotatable handle provided on the left side of the door body, and a handle provided on the left side of the door body in conjunction with the rotation of the handle. a left engagement device having rods protruding from the upper and lower parts of the frame, and rod-supporting holes provided at positions corresponding to the rods of the frame body and supporting the protruding rods; A rotatable handle provided on the right side of the door body, and rods provided on the upper and lower parts of the right side of the door body protrude in conjunction with the rotation of the handle, and a right-side engagement device having a rod-supporting hole provided at a position corresponding to the rod and supporting the protruding rod; a crank that rotates together with the left and right handles and having a recess in a part of its circumferential surface; , a sliding part that is interposed between the left and right cranks and slides on the peripheral surface of the left and right cranks, respectively;
The distance between the sliding parts is approximately the same as the distance between the circumferential surface of one crank and the recess of the other crank, and an interlock rod that is movable from side to side is installed to prevent door separation. The door body is equipped with a locking device, and when the handle of one of the above-mentioned engagement devices is rotated to disengage this engagement device, the door body can be opened and closed using the rod of the other engagement device as a support. At the same time, in conjunction with the disengaged handle, the peripheral surface of one of the cranks presses one sliding part of the interlock rod, causing the other sliding part of the other crank to press. A double door device that engages with the recess to interlock the rotation of the crank.