JPH0571382U - Biaxial structure joint - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] A biaxial joint that has a simpler mechanism and can open 180 ° reliably and is durable. [Structure] A fixed plate is attached to the main body side to provide a first shaft 4, and a turntable 8 is attached to a door 2 side to provide a second shaft 7,
The relay plate 5 is interposed between the fixed plate 6 and the rotary plate to form a guide groove in the relay plate, and the slider 9 is loosely fitted in the guide groove. Then, a concave groove is formed in one place of the fixed plate and the turntable, the slider end is fitted therein, and the fitting of the slider restricts the rotation around the first shaft or the second shaft, thereby opening the door. Open 180 °.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a biaxial joint for opening and closing a door attached to a locker or a library.

[0002]

[Prior Art]

 The door attached to furniture such as fittings and lockers can be opened and closed, but if the joint for attaching the above door has a uniaxial structure, the opening of the door is restricted. Therefore, in order to increase the opening degree of the door, the door may be attached using a biaxial joint, and in such a biaxial joint, the door is rotated about 180 ° to open. You can

By the way, as the joint constituted by the above-mentioned biaxial structure, for example, "Hinge device for furniture etc." according to Japanese Utility Model Publication No. 62-31574, "Cabinet door hinged device" according to Japanese Utility Model Publication No. 62-21621. , "Opening / closing device of storage box" according to Jitsuho Sho 60-6133 is known. Of course, two-axis structure joints having certain characteristics other than these are known in the related art. However, these conventional joints are used as rotation restricting members, such as rotation restricting grooves, locking portions, and stoppers. It has a spring, etc., which makes it structurally complicated. Therefore, the manufacturing cost is high, and the structure is complicated, so that the durability is poor and the opening / closing operation of the door is hindered.

[0004]

[Problems to be solved by the present invention]

 As described above, the conventional biaxial joint has the above problems. The problems to be solved by the present invention are these problems, and provide a biaxial structural joint having an opening degree of 180 ° with an extremely simple structure.

[0005]

[Means for Solving the Problems]

 The biaxial joint according to the present invention has the following features as means for solving the above-mentioned problems. That is, the first shaft is attached to the main body side, the second shaft is provided to the door, the fixed cam is attached to the first shaft, and the turntable is attached to the second shaft. A slider is interposed between the rotary board and the rotary board. A relay plate is provided across the first shaft and the second shaft, and the slider is loosely fitted in a guide groove formed in the relay plate. The fixed cam and the peripheral surface of the turntable form smooth arc surfaces and concave grooves, and the slider can be slid so as to engage with these concave grooves and, conversely, to separate from the concave grooves. The fixed cam has a concave groove formed at a position where the door is opened by about 90 °, and the rotary disk has a concave groove formed in the same direction as the door surface. The fixed cam does not rotate and the rotary disk is on the door side. It is fixed to and rotates with the door.

[0006]

[Action]

 To explain the operation of the biaxial structural joint configured as described above, when the door in the closed state is first opened, the door rotates about the first axis. In this case, the slider is fitted in the concave groove of the rotary disc having the second shaft as its center, and the other end of the slider contacts the outer periphery of the fixed cam so that the slider cannot be separated from the concave groove. Touching. Therefore, the relay plate also rotates at the same time as the door and opens about 90 °.

When the door and the relay plate open about 90 °, the concave groove of the fixed cam is formed at that position, and the other end of the slider becomes free. The relay plate is provided with a rotation restricting member (stopper) that prevents it from rotating more than 90 °, so that rotation about the first axis is not possible, and rotation about the second axis is not possible. The door starts to rotate. When the slider fits into the concave groove of the fixed cam, it is disengaged from the concave groove of the rotary disk and is allowed to rotate around the second axis, and the slider fitted into the concave groove of the fixed cam has one end. Since it contacts the outer peripheral surface of the rotating disk, its movement is restrained and does not separate from the concave groove. Similarly, when the door is closed, the concave groove into which the tip of the slider fits is changed in the opening state of about 90 °, and the rotation axis changes from the second axis to the first axis. A rotation restricting member (stopper) provided at the side end of the door hits the relay plate to prevent rotation about the second axis. An embodiment according to the present invention will be described below with reference to the drawings.

[0008]

【Example】

 FIG. 1 is a specific example showing a biaxial structure joint of the present invention. In the figure, reference numeral 1 denotes a main body, 2 denotes a door, a fixed cam 3 is fixed to the main body 1 side, and a fixed shaft 3 is provided with a first shaft 4. The first shaft 4 has a relay plate. 5 is rotatably supported. In this embodiment, a fixing plate 6 is separately provided on the main body 1, the first shaft 4 stands upright from the fixing plate 6, and the fixing cam 3 is fixed to the tip of the first shaft 4. The relay plate 5 is interposed between the fixed cam 3 and the fixed plate 6. On the other hand, a second shaft 7 is provided on the door 2 side, and a turntable 8 is attached to the second shaft 7. The turntable 8 is fixed to the door 2 and rotates together with the door 2. To do. A second shaft 7 extending from the rotary plate 8 is connected to the relay plate 5 and is rotatably supported, and a slider 9 is provided in a guide groove formed in the relay plate 5 for supporting both shafts 4, 7. It is loosely fitted so that it can reciprocate in the direction.

By the way, when the door 2 is opened, first, the door 2 rotates about the first axis, and when it opens about 90 °, it next rotates about the second axis 7. Movement from the first shaft 4 to the second shaft 7 is performed by the relay plate 5 and the slider 9 attached to the relay plate 5. FIG. 2 is an exploded view of the above-mentioned biaxial structure joint disassembled into its parts. The fixed cam 3 has a smooth curved surface on its side surface 10 and a concave groove 11 formed at one place. It is fixed to the upright first shaft 4. A shaft hole 12 into which the first shaft 4 is fitted is formed at one end of the relay plate 5, a second shaft 7 projects at the other end, and a guide groove 13 is provided between the shaft hole 12 and the second shaft 7. Are formed. Here, it is also possible to attach the second shaft 7 to the door side instead of attaching it to the relay plate 5 side and form a shaft hole in place of the second shaft 7. A stopper 20 is formed on the side edge of the relay plate 5. A slider 9 is set in the guide groove 13, and flanges 14a and 14b are formed on both sides of the upper portion so that the set slider 9 does not fall out of the guide groove 13. The turntable 8 is attached to the attachment plate 15 fixed to the door 2 side, and the second shaft 7 is fitted into the shaft hole 16 provided at the center of the turntable 8. The holes at both ends of the attaching plate 15 are screw holes 17a and 17b for fixing the attaching plate 15 to the door 2, and the door 2 is also provided with a stopper 21. Further, in the figure, numeral 23 is a flat plate which prevents the slider 9 from falling when this joint is attached to the upper part of the door. Of course, the fall prevention means of the slider 9 is not limited to the brim 14 and the flat plate 23.

Hereinafter, the operation of this joint will be described with reference to FIGS. 3A to 3C. In FIG. 3A, the slider 9 is positioned between the fixed cam 3 and the turntable 8 when the door 2 is closed. Then, one end of the slider 9 is fitted into the concave groove 18 of the rotary disk 8, and the other end is in contact with the side surface 10 of the fixed cam 3. Therefore, when the door 2 is opened in this state, since the rotation of the turntable 8 attached to the door 2 side is restricted by the slider 9, the door 2 rotates about the first shaft 4. .. Until the door 2 is rotated about 90 °, the other end of the slider is in contact with the side surface 10 of the fixed cam 3, so that the door 2 is rotated as it is. In b, the door 2 is opened by about 90 °, the other end of the slider 9 is positioned in the concave groove 11 of the fixed cam 3, and the other end of the slider 9 is free. The relay plate 5 also rotates with the rotation of the door 2, and the stopper 20 formed on the relay plate 5 contacts the side surface of the fixed plate 6.

Accordingly, when the door 2 is further opened from the state of b, the stopper 20 of the relay plate 5 prevents the rotation of 90 ° or more, and the rotation around the first shaft 4 cannot be performed. Therefore, the slider 9 is rotated about the second shaft 7, and the slider 9 is disengaged from the concave groove 18 of the rotary disk 8 so that the rotary disk 8 fixed to the door can rotate. That is, when the turntable 8 rotates, the fixed cam 3 side is in a free state, so that the slider 9 moves to the fixed cam 3 side and fits into the concave groove 11 of the fixed cam 3. In FIG. 3C, the door 2 is opened by about 180 °, the relay plate 5 rotates about 90 ° with respect to the fixed cam 3, and the turntable 8 rotates about 90 ° with respect to the relay plate 5. is doing.

On the contrary, when the door 2 opened 180 ° is closed, the order of operation is c → b → a, and one end 19 of the slider 9 has a concave shape of the fixed cam 3 in the opened state of 90 °. From the state of being fitted in the groove 11 to the concave groove 18 of the turntable 8. A stopper 21 is provided at the side end of the door 2, and when the door 21 is closed from c to b, the stopper 21 contacts the side surface 22 of the relay plate 5 to prevent the door 2 from rotating. .. Therefore, the force for closing the door 2 causes the relay plate 5 to rotate, the relay plate 5 rotates about the first shaft 4, the slider 9 separates from the concave groove 11, and the rotary plate 8 moves. It can be fitted into the concave groove 18, and the door 2 is closed together with the relay plate 5. The embodiment described above is merely one specific example of the present invention and is not limited to this embodiment. By the way, by constructing the joint of the present invention in this way, the following effects can be obtained.

[0013]

[Effect of the device]

 The biaxial structure joint of the present invention is provided with a fixed cam and a rotary plate formed with a predetermined curved surface, a first shaft and a second shaft, and both shafts are connected by a relay plate, and a slider slides on the relay plate. It is attached as much as possible, and it is fitted into the concave groove of the fixed cam or the concave groove of the rotary disk by the movement of the slider, thereby restricting the rotation of the first and second shafts and opening the door by 180 °. The mechanism of the rotation restricting member is extremely simple because it can be used. That is, the biaxial joint of the present invention is a mechanism that uses a plate cam, and the opening and closing operations of the door become extremely smooth by appropriately setting the shape of the plate cam (fixed plate, rotary plate, slider), Moreover, it has a durable structure.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a biaxial joint according to the present invention.

FIG. 2 is a development view of the biaxial structure joint of the present invention.

FIG. 3 is an operation diagram of a biaxial structure joint.

[Explanation of symbols]

 1 Main Body 2 Door 3 Fixed Cam 4 1st Shaft 5 Relay Plate 6 Fixed Plate 7 2nd Shaft 8 Rotating Plate 9 Slider 10 Side Surface 11 Recessed Groove 12 Shaft Hole 13 Guide Groove 14 Flange 15 Attachment Plate 16 Shaft Hole 17 Screw Hole 18 Recessed groove 19 One end 20 Stopper 21 Stopper 22 Side 23 Flat plate

Claims (1)

[Scope of utility model registration request] 1. A fixed cam having a side surface of a predetermined radius and a concave groove continuously formed on the side surface is attached to the main body side, the fixed cam is provided with a first shaft, and one door side is provided. A rotary disk having an outer peripheral surface having a predetermined radius and a concave groove continuously formed on the outer peripheral surface is fixed, and a second shaft is provided on the rotary disk, and the first shaft and the second shaft are connected by a relay plate. Connected, and the relay plate has a guide groove and about 9
A stopper that prevents rotation of 0 ° or more is provided, a slider is loosely fitted in the guide groove, and both ends of the slider move so as to fit into the concave groove. Also, the relay plate is also provided at the side end of the door. A biaxial structure joint characterized in that a stopper that comes into contact with the side surface is formed.