KR0157397B1 - Device capable of opening/closing a door member at either side thereof - Google Patents

Abstract

A two-sided open door opening and closing device capable of arbitrarily opening a door provided at a door opening of a main body is disclosed.

The door opening and closing device according to the present invention includes at least one pair of hinge pins which are respectively installed at both end portions of either the door or the main body to form pivotal pivots of the door;

A fixing member fixed to the opposite main body or the door of the door or the main body, and having pin access passages provided at both ends of the hinge pins for entering and exiting in the rotational direction of the door;

Each of the pin holding grooves for accommodating the corresponding hinge pins introduced along the pin access passages may rotate between an accommodation standby position in which the hinge pins are not accommodated and an accommodation position in which the hinge pins are accommodated. Rotatable members which are respectively installed in the regions of the pin access passages of the fixing member so that the hinge pins rotate in conjunction with the hinge pins when the pin holding grooves move in and out;

A latch having one end connected to the pivot member at a predetermined distance from the pivot point of the pivot member and supported by the fixing member to be reciprocated along the longitudinal direction of the fixing member by a pivot cam action of the pivot member As the members, the other ends of the latch members face each other as the free ends to be spaced apart from each other by a predetermined distance in the closed state of the door, and the latch member is moved toward the other latch member when the one side of the door is opened. The other end portion includes a latch member for preventing the longitudinal movement of the counterpart latch member and the rotation of the counterpart rotation member by contacting each other. Thereby, it is possible to miniaturize with a simple structure and to provide a two-side open door opening and closing device that can be adapted to various shapes and conditions.

Description

Both sides open door opening and closing device

1 is a schematic perspective view showing a state in which a door of a refrigerator to which a door opening and closing device according to the present invention is applied is opened and closed.

2 is an exploded perspective view of the door opening and closing apparatus according to the first embodiment of the present invention.

3 is a plan view showing the closing device of the door opening and closing device of FIG.

Figure 4 is a plan view showing one side open state of the door opening and closing device of FIG.

5 is a plan view showing a closed state of the door opening and closing apparatus according to the second embodiment of the present invention.

Figure 6 is a plan view showing one side open state of the door opening and closing device of FIG.

7 is a plan view showing a closed state of the door opening and closing device according to a third embodiment of the present invention.

8 is a plan view showing one side open state of the door opening and closing device of FIG.

9 is a plan view showing a closed state of the door opening and closing apparatus according to the fourth embodiment of the present invention.

10 is a cross-sectional view taken along the line A-A of FIG.

11 is a cross-sectional view showing one side open state of the door opening and closing device of FIG.

12 is an exploded perspective view of the door opening and closing apparatus according to the fifth embodiment of the present invention.

13 is a plan view showing a closed state of the door opening and closing device of FIG.

14 is a cross-sectional view taken along the line B-B in FIG.

15 is a cross-sectional view taken along the line C-C in FIG.

Figure 16 is a plan view showing one side open state of the door opening and closing device of FIG.

17 is an exploded perspective view of the door opening and closing apparatus according to the sixth embodiment of the present invention.

18 is a plan view showing the closed state of the door opening and closing device of FIG.

19 is a cross-sectional view taken along the line D-D of FIG. 18;

20 is a plan view showing one side open state of the door opening and closing apparatus of FIG.

21 is a plan view showing a closed state of the door opening and closing apparatus according to the seventh embodiment of the present invention.

22 is a cross-sectional view taken along the line E-E of FIG.

Figure 23 is a plan view showing one side open state of the door opening and closing device of FIG.

24 is a plan view showing a closed state of a conventional door opening and closing device.

25 is a plan view showing an open side of the conventional door opening and closing device of FIG.

* Explanation of symbols for main parts of the drawings

6: pin guide groove 14: hinge pin

30, 70, 90: latch member 80, 82: rotating cam

33, 81, 95: rotating shaft 34: pin holding groove

35, 73: guide member 40, 76: toggle spring means

41: bullet spring 42: support pin

43: casing 44: compression spring

51, 61: hanging groove 53, 56, 66: compression spring

54, 64: paper pin 57, 67: haejae pin

71: inner end 74: locking pin

75: side slot 82: pin holding groove

86: rotational locking member 88: bending slot

90a: Connection lever 96: Rotating lock member

99: hanging piece 100: second member

105: first member S: separation interval

The present invention relates to an opening and closing device mainly used in the door member, and more particularly to a two-side openable door opening and closing device that can open and close the door arbitrarily on both sides of the door.

Doors are installed in buildings such as houses, furniture, home appliances such as refrigerators and microwave ovens, automobiles, etc. and are essential for human life. Such doors are generally made to be open to one side only from the beginning by installing a hinge or hinge on one side of the left or right side and a handle on the other side.

Therefore, since the opening direction of the door is limited to any one, it may be inconvenient to use depending on whether the user is left-handed or right-handed, and the installation place should always be selected in consideration of the opening direction of the door. There are many inconveniences such as being a big limitation in the efficient use of space.

US Patent No. 5,064,255 (Yoshio Inui et. Al) is known as a recent proposal to solve this inconvenience. Accordingly, both side openable door opening and closing devices are particularly suitable for refrigerators, and as shown in FIGS. 24 and 25, hinge pins 102A and 102B on both the left and right ends of the door or the main body to which the door is attached. ) Is provided with fixing plates 104B having grooves 107A, 107B on which the hinge pins 102A, 102B can be removably engaged from the open side of the door, and are provided at the left and right ends of the fixing plate 014B. Latch plates 105A, 105B having latch grooves 108A, 108B to which the hinge pins 102A, 102B can catch are rotatably provided.

Each latch plate 105A, 105B is provided with links 106A, 106B pivotally fixed at the ends of the shafts 113A, 113B protruding from the fixing plate 104B, and each link 104A, 106B has its free end side. Is provided, and each of the links 106A and 106B is connected at its free end by a connecting link 106C. The latch plates 105A and 105B have protruding lock pins 115A and 115B, and the links 106A and 106B provided on the latch plates 105A and 105B are sliding guides in which the lock pins 115A and 115B are engaged. The parts 114A1 and 114B1 and the stopper parts 114A2 and 114B2 have lock holes 114A and 114B which are provided to bend.

By such a configuration, in the above-described known door opening and closing device, when the left side of the door is pulled to open the door to the left from the closed state of the door as shown in FIG. 24, the hinge pin 102B opens the groove 107B. As it exits, the latch plate 105B is rotated clockwise so as to be in a state as shown in FIG. At this time, as the lock pin 115B of the latch plate 105B moves along the sliding guide 114B of the link 106B, the link 106B is inclined to one side, whereby the link 106A on the right side is also connected to the link. Tilt through 106C.

Thus, the lock pin 115A of the right latch plate 105A is pushed into the stopper portion 114A2 of the lock hole 114A, so that the latch plate 105A on the right side can rotate even if the hinge pin 102A receives the release force. Since it is not possible to perform a secure hinge function. When the left side is closed from the open state, the hinge pin 102B rotates the latch plate 105B to return to the original state. In order to ensure that the latch plates 105A, 105B rotate between the open position and the closed position, springs 110A, 110B acting in a toggle manner are provided.

An essential requirement for both open door devices is that the hinge pins on both sides must be releasably removable, and the latch member on the other side must securely hold the hinge pins when the latch member on one side is opened. And finally, the latch member in the open state must be kept in a state capable of receiving the hinge pin again. The above-mentioned known device employs the rotating latch plates 105A and 105B for the removable insertion of the hinge pins, and the three link members 106A, 106B and 106C, locks to meet the second and third requirements. Pins 115A and 115B and lock holes 114A and 114B are used.

This known door opening and closing device is relatively complicated in structure because it has a relatively large number of operating members, and thus it can be expected that the manufacturing cost and the failure rate can be high. In addition, there is a limit in reducing the thickness of the device because there is a link that is installed horizontally in the width direction of the door. Therefore, it may be suitable for installation in a relatively thick door such as a refrigerator, but has a problem in that it is difficult to apply to a thin door such as a door of a sink. In addition, since the connecting link 106C for interlocking the two links 106A and 106B can transmit the action force almost in a straight line, for example, when the door is bulging toward the front, the device may be used. Not applicable

Accordingly, it is an object of the present invention to provide a bilateral open door opening and closing device which is relatively simple in structure and can be made thin.

Still another object of the present invention is to provide a double side open door opening and closing device that can be applied to doors having various bending phenomena.

It is still another object of the present invention to provide a two-sided door opening and closing device in which both corner portions of the door have a polygonal or partial cylindrical shape close to round, so that the rotation radius of both edge portions is reduced.

Still another object of the present invention is to provide a safe two-sided door opening and closing device that can prevent the door from falling off due to an unfavorable external force in a state in which one side of the door is opened.

The above object of the present invention is a two-sided open door opening and closing device capable of arbitrarily opening a door provided at a door opening of a main body, each of which is provided at either end of either the door or the main body to respectively rotate the pivot axis of the door. At least one pair of hinge pins formed to face each other; A fixing member fixed to the opposite main body or the door of the door or the main body, and having pin access passages provided at both ends thereof to allow the hinge pins to enter and exit in the rotational direction of the door; Each of the pin holding grooves for accommodating the corresponding hinge pins introduced along the pin access passages may rotate between an accommodation standby position in which the hinge pins are not accommodated and an accommodation position in which the hinge pins are accommodated. In each of the pin access passage area of the fixing member so as to be provided, In both open door opening and closing device consisting of a rotating member to rotate in conjunction with the hinge pin when moving the pin holding groove,

One end portion is connected to the pivot member at a predetermined distance from the pivot point of the pivot member to be supported by the guide member of the anchor member so as to be reciprocated along the longitudinal direction of the anchor member by a pivot cam action of the pivot member. As the latch members, the other ends of the latch members are free ends and face each other between the two pivot members so as to be spaced apart by a predetermined distance in the door closed state, and when the one side of the door is opened, the corresponding latch member faces the opposite latch member. It is achieved by including a latch member that moves and the other ends are in contact with each other to prevent longitudinal movement of the counterpart latch member and rotation of the counterpart rotation member.

As a preferred embodiment of the present invention, it may further include a toggle spring mechanism for elastically holding the rotating member at the receiving standby position and the receiving position, respectively, to maintain the rotating member firmly at a predetermined rotating position.

The pivot member and the latch member are advantageous in that the connection by the relatively rotatable pin coupling ensures the movement of the latch member, and may be separated from each other in sliding contact in consideration of the frictional force.

In addition, the latch member may be one rigid body, and may be configured to be connected to the at least two rigid bodies so as to be bendable so that the rotational motion can be more accurately transmitted to the linear motion.

On the other hand, the rotating member and the latch member may be configured to be connected by a slot on one side and a movable pin in the slot, wherein the latch member is connected to the rotating member by the slot and the pin A first member reciprocating in the longitudinal direction of the fixing member, and a second end reciprocating in the longitudinal direction of the fixing member by forming one end thereof in contact with the cam-shaped surface of the rotating member and the other end forming a free end portion of the latch member. A member may be provided, and an interlocking means may be provided between the first member and the second member to allow movement of the first member in the direction of the rotation member only with the second member.

The second member and the pivot member are advantageous in that the rolling contact with each other reduces the frictional force, and the interlocking means may be simply formed as a locking step in the moving direction between the first member and the second member.

The opposing pair of latch members may be configured to be in direct contact with each other, may be indirectly contacted through at least one intermediary member, and the intermediary member may be formed of a compression spring and may also be applied to a curved door. So that it can be moved along a curved path. In this case, the intermediate member may be formed of a plurality of rolling bodies.

In addition, both end portions of the door may be formed in a shape such as an improvement of a partial cylinder or a partial polygon, so that the rotation radius of both edge portions of the door may be reduced.

In addition, as a preferred embodiment of the present invention, in order to securely open and close the door, it prevents the return of the latch member on the open side moved toward the latch member on the opposite side when one side of the door is opened, and when the door is closed, the opening is prevented. A locking means for releasing the locked state of the side latch member and allowing its return can be further provided.

As a preferred example of the locking means, a locking pin provided in the latch member and a locking pin which is supported to be urged in the direction between the door and the main body to the fixing member adjacent to the locking groove and configured to be inserted into the locking slot. And, one end is urged so as to protrude in the direction between the door and the main body, the other end is provided with a release pin configured to be in contact with the locking pin, the locking pin is recessed in the hanging groove when the door is opened It is configured to prevent the return of the latch member, and when the door is closed, the release pin is inserted into the inside of the fixing member to release the locking pin from the locking groove to allow the latch member to return.

As another example of the locking means, a locking pin protruding from the latch member and the locking member are rotatably supported so as to be urged in the direction between the door and the main body, and the locking pin is inserted therein and movable. A first rotating lock member having a bending slot consisting of a longitudinal slot in the longitudinal direction of the holding member and a transverse slot in the horizontal direction, wherein the locking pin is caught by the transverse slot to prevent the return of the latch member when the door is opened. The locking pin is positioned in the longitudinal slot when the door is closed, and is configured to allow the return of the latch member.

In another embodiment, the locking means is rotatably supported by the latching protrusion protruding from the latch member and the fixing member so as to be urged in the direction between the door and the main body, and the locking protrusion is inserted therein so as to be pivotable. And a second pivot lock member having a groove formed therein so that the locking projection is caught by the locking groove to prevent the return of the latch member when the door is opened, and the locking projection is separated from the locking groove when the door is closed. It is configured to allow return.

The above and other objects and shapes of the present invention will become more apparent from the following detailed description of the accompanying drawings and the embodiments thereof.

1 is a schematic perspective view showing a state in which a door of a refrigerator to which the two open door opening and closing devices according to the present invention are specifically applied is opened and closed.

Referring to FIG. 1, a door 20 is formed in a double top and bottom at a door opening formed in the refrigerator main body 10, and an upper door is a state in which the right side of the door is opened, and a lower door is left of the door. This open state is shown. In addition, a pair of hinge pins 14, which act as pivotal centers of the doors, are formed on both sides of the door opening of the main body 20, respectively. On the other hand, the hinge pin 14 may be installed on the side of the corresponding door 20, if necessary, may be installed only one pair in the upper and lower center area of the door.

In the following embodiments of the present invention, the hinge pin 14 is formed in the main body, in particular, will be described in the case formed in the upper side of the door opening of the main body 10, the same through the previous embodiment The components will be denoted by the same reference numerals,

2 is an exploded perspective view of the door opening and closing apparatus according to the first embodiment of the present invention. As can be seen in this figure, the fixing part 3 and the cover part 5 integrally coupled on the fixing part 3 are, for example, a fixing member installed on one of a main body, such as a refrigerator, or a door thereof. To form.

The fixing member formed by integrally coupling the fixing portion 3 and the cover portion 5 forms a long elongated body, and pin introduction grooves serving as pin access passages of the hinge pins 14 at both ends thereof. 4) and pin guide grooves 6 are formed, respectively, through which the hinge pins 14 can move in and out of the fixing member with the opposite hinge pins 14 as pivot centers. That is, it is preferable that the pin access passage is open in the main body 10 direction and is also open upward, and has a curvature shape having the opposite hinge pin 14 as the curvature center.

Inside the fixing member, a pair of latch members 30 serving as latch members are built so as to reciprocate in the longitudinal direction of the fixing member to face each other. The inner end portions of the latch members 30 are accommodated in the guide member 35 provided on the lower surface 37 near the center of the fixing member and face each other with a predetermined gap s.

On the other hand, a rotation cam 32 is provided on the lower surface 37 of the fixing member near each of the pin access passages. The pivoting cam 32 is pivotally coupled to the fixing member about one side of the pivot shaft 33, and the other side is coupled to the hinge about the outer end of the latch member and the hinge shaft 31. In addition, it has a pin holding groove (34) intersecting with the pin introduction groove (6) formed in the fixing member, and to be accommodated therein so as to accommodate the hinge pin (14) when the door is closed.

3 and 4 schematically show a plan view in the closed state and a plan view in the open state of the door opening and closing device having such a configuration. In these drawings, the hinge pin 14 is installed on the bracket 12 of the metal plate fixed to protrude to the main body 10, and the fixing part 3 and the members attached thereto are installed in the door 20, and fixed. The cover part 5 of the member is omitted in each plan view for ease of explanation. In addition, although omitted in the drawing, a wide gasket between the main body 10 and the door 20 has a gasket for sealing the door 20 and the main body 10.

First, FIG. 3 shows a state in which the door 20 is closed in close contact with the door opening of the main body 10, and both the hinge pins 14 on both sides are located in the pin guide groove 6 of the cover part 5. FIG. In this state, the pin retaining grooves 34 of the respective rotation cams 32 intersect the pin guide grooves 6 and hold the hinge pins 14 therein. In this case, the latch members 30 have their inner ends accommodated in the guide member 35 to maintain a predetermined spacing s. The spacing interval s should be maintained at a size corresponding to the movement distance of the latch member 3 according to the rotational operation of any one of the rotation cams 32.

When the door 20 is pulled out of the main body 10 using a handle (not shown), for example, the left end of the drawing, to open the door 20 from the closed state of the door of FIG. Along the pin guide groove (6) of the) is moved in a direction that is separated outward. At this time, the pivoting cam 32 is rotated counterclockwise around the pivoting shaft 33 by the hinge pin 14 so that the left latch member 30 in the drawing faces the right latch member 3 ( Image table direction) so that the inner ends thereof are in contact with each other. As a result, the right latch member 30 is prevented from moving to the left side, and the door 20 is securely supported about the right hinge pin 14.

When the door 20 is moved back to the closed position in the open state as shown in FIG. 4, the hinge pin 14 moves inward along the pin guide groove 6 of the fixing member so that the pivoting cam 32 is moved. The pin holding groove 34 is pushed. As a result, the rotation cam 32 rotates in a counterclockwise direction to receive the hinge pin 14 in the pin retaining groove 34 to complete the closing operation of the door. At this time, the latch member 30 is maintained at the first separation interval (s) to enable the next opening operation.

The opening and closing operations of the door are the same when the latch member 30 on the right side is operated. And since the sliding contact between the hinge pin 14 and the side portion of the pin introduction groove 6 may cause a problem of wear. To prevent this, the hinge pin 14 may be designed to be rotatable, and if necessary, a thrust bearing may be installed on the hinge pin 14 to support the load of the door 20. In addition, when the hinge pin 14 enters and exits through the pin access passage at a position corresponding to the hinge pin 14 on the side of the door 20 on which the fixing member is installed when the door 20 is closed. It is possible to further install a rolling member, for example, a ball bearing, capable of rolling while contacting the tip of the pin 14. This is to prevent sagging of the door and at the same time to facilitate the closing operation of the door.

5 and 6 show a plan view of an open state and a closed state of the door opening and closing apparatus according to the second embodiment of the present invention.

The embodiment is the same as the novel first embodiment except that the rotation cam toggle spring means 40 is provided to securely hold the rotation position of the rotation cam 32 at a predetermined position.

Referring to FIG. 5, the rotation cam toggle spring means 40 is positioned so as to protrude outward from the casing 43, the tanval spring 41 located in the casing 43, and the casing 43. It is made of a support pin 42 that is under the force of the bullet spring (41). The rotating cam toggle spring means 40 is rotatably supported on one side of the casing 43 on the lower surface 37 of the fixing member, the other time the constant support pin 42 is the rotating cam 32 ) Is pivotally combined. The rotating cam toggle spring means 40 is positioned to impart a force obliquely to the rotating cam 32. That is, as shown in FIG. 5, in the closed state of the door, a clockwise force is applied to the pivoting cam 32 so that the hinge pin 14 can be safely accommodated in the pin retaining groove 34 in the pivoting cam 32. At the same time, the rotating cam 32 is maintained at a predetermined position so that the rotating cam 32 is not excessively rotated in the clockwise direction.

On the other hand, as shown in FIG. 6, when the toggle spring means 40 is opened by one side of the door 20 is subjected to a compressive force by the rotational motion of the rotating cam 32, when rotated more than a predetermined angle the ball spring ( By the repulsive force of 41), the rotating cam 32 is fixed to a certain position so that the rotating cam 32 is not over rotated in the counterclockwise direction.

Therefore, since one side of the door is open, the rotating cam 32 on the open side continues to receive a boost force by the ball spring 41 of the rotating cam toggle spring 40, so that the door is open. Rotation cam 32 is prevented from rotating in a clockwise direction by the external force of the side. Therefore, the door 20 can be safely opened and closed without being separated from the main body 10.

7 is a plan view showing a closed state of the door opening and closing apparatus according to a third embodiment of the present invention, Figure 8 is a plan view showing one side open state. In this embodiment, the same as the second embodiment described above except for the shape of the rotation cam toggle spring means 40 for maintaining the rotation position of the rotation cam 32 firmly at a predetermined position.

7 and 8, the rotation cam toggle spring means is composed of a single compression spring (44). One side portion of the compression spring 44 is rotatably supported on the lower surface 37 of the fixing member, and the other side portion is rotatably coupled to the rotatable cam 32. The compression spring 44 is obliquely applied to the rotation cam 32, the hinge pin (34) in the pin holding groove 34 in the rotation cam 32 in the closed state as shown in FIG. The clockwise force is applied to the rotational cam 32 so that the rotational cam 32 can be safely accommodated, and the rotational cam 32 is maintained at a predetermined position so that the rotational cam 32 is not excessively rotated clockwise. On the contrary, when one side of the door 20 is opened and receives a compressive force by the rotational motion of the rotational cam 32 and rotates more than a predetermined angle, the rotational cam 32 is applied counterclockwise by the repulsive force of the compression spring 44. By applying the to ensure that the rotating cam 32 is fixed to a constant rotational position.

Therefore, the door 20 can be safely opened and closed without being separated from the main body 10.

9 to 11 are views according to the fourth embodiment of the present invention, Figure 9 is a plan view showing a closed state of the door opening and closing device, Figure 10 is a cross-sectional view of the line AA of Figure 9, Figure 11 is a view of the door opening and closing device It is a top view which shows one side open state.

In this embodiment, when one side of the door 20 is opened, it prevents the return of the latch member 30 on the open side moved toward the latch member 30 on the opposite side, and when the door is closed, The same as in the first embodiment described above, except that there is further provided locking means for releasing the locked state and allowing its return.

Referring to FIG. 9, the locking means is close to the locking grooves 51 and 61 installed in the latch member 30 and the locking grooves 51 and 61 so as to be caught or released from the locking grooves 51 and 61. And installed in the support between the door 20 and the main body 10 to the urging in the direction between the fixing member and configured to be inserted into the locking groove groove pins 54, 64, and one end of the door ( 20) and the release pins (57, 67) is urged so as to protrude in the direction between the main body 10 and the other end is configured to contact the pins (54, 64). In FIG. 9, two locking means are formed in each of the left and right latch members 30, and two locking means near the center of the fixing member are operated by one release pin 67. In FIG.

Looking at the specific shape of the locking means with reference to Figure 10 as follows. That is, the rubbing pins 54 and 64 have one end thereof in contact with the compression spring 53 supported in the kenishing 52 fixedly installed on the lower surface 37 of the fixing member and the other end of the door 20. In the direction between the body and the main body 10. In addition, the release pins 57 and 67 are also oriented between the door 20 and the main body 10 by a compression spring 56 supported in another casing 55 fixedly installed on the lower surface 37 of the fixing member. The one end of the release pin (57, 67) is directed toward the inside of the fixing member so as to be in contact with the locking pin (54, 64), the other end of the door 20 from the fixing member And protrude in the direction between the main body 10. That is, the height from the lower surface of the fixing member lower surface 37 of the multi-stage portion of the rubbing pins 54 and 64 is maintained higher than the height of the latch member 30, and the general portion of the release pins 57 and 67 is the latch member. It is comprised so that it may come in contact with the multiple part of the said pin | tip pin 54,64 across the upper part of the 30. On the other hand, the locking means near the center of the fixing member shown in Figure 9 is configured to operate the two pins 64 by one release pin (67).

Operation of the door opening and closing device according to the embodiment is as follows. First, as shown in FIG. 9, in the closed state of the door, the other ends of the release pins 57 and 67 protruding to the outside of the fixing member come into contact with the main body 10. Is pushed into the fixing member, and at the same time, one end of the release pins 57, 67 pushes the pins 54 and 64 so that the pins 54 and 64 are removed from the pins 51 and 61. It is released. At this time, each latch member 30 is moved in the direction of the hinge pin 14, the spaced interval (s) is maintained between the inner ends of the latch member (30).

Meanwhile, as shown in FIG. 11, when the left side of the door is opened, the left cam member 32 is rotated counterclockwise while the left latch member 30 moves toward the right latch member 30. At the same time, by the repulsive force of the respective compression springs (53, 56, 63, 66), the locking pin (54, 64) is received and supported by the locking groove (51, 61) is formed close to the latch member ( 30) and the release pins 57 and 67 protrude outward from the fixing member.

Therefore, the door can be opened and closed safely.

12 to 16 show a fifth embodiment of the present invention, FIG. 12 is an exploded perspective view of the door opening and closing device, FIG. 13 is a plan view showing a closed state of the door opening and closing device, and FIG. 14 is a BB of FIG. It is sectional drawing of a line, FIG. 14 is a longitudinal cross-sectional view of the CC line of FIG. 13, and FIG. 16 is a top view which shows one side open state of the door opening and closing apparatus.

Referring to FIG. 12, the fixing member consisting of the fixing part 3 and the cover part 5 shows an example in which both edges are rounded, and both edges of the door in which the fixing member is installed are also rounded. As described above, the corner portion of the door is made in a semicircle shape or a polygonal shape close to a circle in order to reduce the rotation range of the door to reduce the distance between the door and the main body and to smoothly open and close the door.

On the other hand, inside the fixing member, a pair of latch members 70 made of a plate shape serving as a latch member are built so as to reciprocate in the longitudinal direction of the fixing member to face each other. The inner end portions 71 of the latch members 70 are accommodated in the guide member 73 provided on the lower surface 37 near the center of the fixing member and face each other with a predetermined gap s. At this time, each latch member 70 is urged outward by the repulsive force of the compression spring 72 interposed between the inner end portion (71). In addition, each of the latch members 70 has a locking plate 74 protruding downward from the inside thereof, and a horizontal slot 75 is formed in the horizontal direction of the latch member 70 near the outer end.

On the other hand, the rotation cam 80 is installed on the lower surface 37 of the fixing member so that one side can rotate about the pivot shaft 81 near each of the pin access passages. In addition, a first rotation lock which prevents the return movement of the latch spring 70 and the toggle spring means 76 serving as a rotation cam toggle spring means between the latch member 70 and the lower surface 37 of the fixing member. Each member 86 is formed.

One end of the toggle spring means (76) is rotatably supported on the lower surface (37) of the fixing member, and the other end is pivotally coupled around the rotation cam (80) and the hinge shaft (77). . In addition, the first pivot lock member 86 is rotatably supported such that one end thereof is urged in the direction between the door 20 and the main body 10 by a spring 87 on the fixing member about the pivot shaft 85. And a gripping pin 74 installed in the latch member 70 is inserted therein and is movable, and a longitudinal slot in the longitudinal direction of the fixing member and a horizontal slot in the horizontal direction have a c-shaped bending slot ( 88).

Referring to FIGS. 13 and 14, the door 20 is in close contact with the door opening of the main body 10, and both hinge pins 14 on both sides are pins of the cover part 5. It is accommodated in the guide groove 6, and in this state, the pin holding groove 34 of each rotation cam 32 intersects with the said pin guide groove 6, and the said hinge pin 14 is hold | maintained in it. At this time, the latch members 70 have their inner end 71 accommodated in the guide member 73 to maintain a predetermined spacing (s). In this case, the toggle spring portion 76 and the rotational shaft 77 portion in which the rotation cam 80 is pivotally coupled is located at the main body side end of the transverse slot 75 formed in the latch member 70, The first rotating path member 86 is pushed into the fixing member in contact with the main body 10, and the locking pin 85 installed in the latch member 70 is formed in the first rotating lock member 86. The bending slot 88 is positioned at an outer end of the longitudinal slot formed in the longitudinal direction of the latch member 70.

Referring to FIG. 15, a guide groove 38 is formed along the pin access passage in the fixing member lower surface 37 in contact with the front end of the hinge pin 14 entering and exiting through the pin access passage. (14) facilitates entry and exit.

When the left end of the drawing is pulled from the main body 10 to open the door 20 from the closed state of FIG. 13, the hinge pin 14 is fixed along the pin access passage as shown in FIG. The door is opened away from the outside of the member. At this time, the rotating cam 80 is rotated counterclockwise around the pivot shaft 81 by the hinge pin 14, the left latch member 70 in the drawing toward the right latch member 70 ( Arrow a)) so that the inner end portions 71 are brought into contact with each other. As a result, the right latch member 70 is prevented from moving to the left side, and the door 20 is securely supported by the main body 10 about the right hinge pin 14.

In this case, the rotation spring 77 portion in which the toggle spring 76 and the rotation cam 80 are rotated is positioned at the opposite end of the main body of the transverse slot 75 formed in the latch member 70 to rotate the rotation spring 77. The cam 80 is firmly held at a predetermined rotational position. In addition, the first rotation lock member 86 is rotated for the repulsive force of the spring 87 (arrow b direction) so that the free end protrudes out of the fixing member through the access groove formed on the side of the fixing member, The engaging plate 74 provided on the latch member 70 slides along the bending slot 88 formed in the first pivot lock member 86 to the outer end of the horizontal slot formed in the horizontal direction of the latch member 70. Located. Therefore, the latch member 70 is prevented from moving to the left side of the drawing by the locking plate 74.

When the door 20 is moved back to the closed position in the open state shown in FIG. 16, the hinge pin 14 moves inward along the fixing member and the pin guide groove 6 to rotate the cam 80. The pin holding groove 82 of the) is pushed, and at the same time, the free end of the first pivot lock member 86 is pushed into the fixing member while contacting the main body 10 to release the locking of the latch member 70. do. As a result, the pivoting cam 80 rotates clockwise to receive the hinge pin 14 in the pin retaining groove 82 and the latch member 70 moves to the left, as shown in FIG. The closing operation of the door is completed.

17 to 20 show a sixth embodiment of the present invention, FIG. 17 is an exploded perspective view of the door opening and closing device, FIG. 18 is a plan view showing a closed state on the door opening and closing device, and FIG. 19 is a DD of FIG. 20 is a plan view showing one side open state of the door opening and closing device. This embodiment shows that the latch member is made of a connection lever having at least one bent coupling portion.

Referring to FIG. 17, a coupling lever 90a is additionally installed between the latch member 90 and the rotational cam 80 inside the fixing member, and the coupling lever 90a is formed of the latch member 90. It is connected by the connecting pin 91. According to the above configuration, the accuracy is improved when the rotation operation is switched to the linear reciprocating movement operation. The inner ends of the latch members 90 are accommodated in the guide member 73 provided on the lower surface 37 near the center of the fixing member and face each other with a predetermined gap s. In addition, each latch member 90 has a locking groove 92 formed in the horizontal direction therein.

On the other hand, as in the fifth embodiment described above, a rotation cam 80 is installed near each of the pin access passages, and a rotation cam toggle spring means is provided between the latch member 90 and the lower surface 37 of the fixing member. Toggle spring means 76 which serves as a second rotation lock member 96 for preventing the return movement of the latch member 90 is formed, respectively.

The second rotation lock member 96 is rotatably supported such that one end thereof is urged in the direction between the door 20 and the main body 10 by a spring 97 on the fixing member about the rotation shaft 95. It is perpendicular to the free end, the hanging piece 99 protrudes upward.

Referring to FIGS. 18 and 19, the door 20 is in close contact with the door opening of the main body 10, and both hinge pins 14 on both sides are pins of the respective rotation cams 80. The retaining groove 82 and the pin guide groove 6 intersect and are held therein. In this case, the latch members 90 have their inner ends accommodated in the guide member 73 to maintain a predetermined spacing s. In addition, the toggle spring means 76 is supported in a position that can apply a clockwise force to the rotation cam 80, the second rotation lock member 96, the free end of the main body 10 It is pushed into the inside of the fixing member in contact with the contact surface, the rubbing surface 99 protruding at the free end of the second pivot lock 96 is separated from the locking groove 92 formed in the latch member (90).

When the left end of the drawing is pulled from the main body 10 to open the door 20 from the closed state of FIG. 17, the hinge pin 14 is fixed along the pin access passage as shown in FIG. The door is opened away from the outside of the member. At this time, while the pivoting cam 80 rotates counterclockwise around the pivot shaft 81 by the hinge pin 14, the left latch member 90 in the drawing slides toward the right latch member 90. Are moved so that their inner ends are in contact with each other. As a result, the right latch member 90 is prevented from moving to the left side, and the door 20 is securely supported by the main body 10 about the right hinge pin 14. At this time, since the left latch member 90 is connected to the left rotating cam 80 through a separate left connecting lever 90a connected to it by the left connecting pin 91, the rotation operation of the left rotating cam 80 is performed. The left latch member 90 connected to the pivoting cam around the left connecting pin 91 rotates in a clockwise direction corresponding to the left connecting pin 91. Since only linear movement is performed, the reciprocating movement of the latch member 90 is maintained more accurately.

In addition, the toggle spring means 76 is placed in the position to apply the force in the counterclockwise direction to maintain the rotation cam 80 in a predetermined rotation position. In addition, the second rotation lock member 96 is rotated by the repulsive force of the spring 97 so that its free end protrudes to the outside of the fixing member through the access groove formed on the side of the fixing member, the second rotation lock member A sliding surface 99 formed at the free end of 96 slides into the locking groove 92 formed in the latch member 70 to prevent the latch member 90 from moving to the left side of the drawing. Is secured to the body 10.

When the door 20 is moved back to the closed position in the open state as shown in FIG. 20, the hinge pin 14 is moved inward along the pin guide groove 6 of the fixing member so that the rotation cam 80 The pin holding groove 82 is pushed, and at the same time, the free end of the second rotation lock member 96 is pushed into the fixing member while contacting the main body 10 to release the locking of the latch member 90. As a result, the pivoting cam 80 rotates clockwise to receive the hinge pin 14 in the pin retaining groove 82 and the latch member 90 moves to the left, as shown in FIG. The closing operation of the door is completed.

21 to 23 show a door opening and closing apparatus according to a seventh embodiment of the present invention, FIG. 21 is a plan view showing a closed state, FIG. 22 is a cross-sectional view of the EE line of FIG. 21, and FIG. 23 is a one side open state. It is a top view which shows. The seventh embodiment of the present invention further includes an interlocking means for preventing the rotation member from rotating to the position of the closed state of the door in a state in which the latch member formed in the fixing member is locked by the locking means when the side of the door is opened. The latch function of the latch member and the return stop function of the latch member are separated.

21 and 22, the door 20 is in close contact with the door opening of the main body 1, and the hinge pins 14 on both sides are held in the receiving position. . On the other hand, the latch member, which is a feature of the present embodiment, is composed of a first member 105 and a second member 100. The first member 105 is formed in a rectangular cylinder that is movable in the longitudinal direction of the fixing member in the fixing member, a horizontal slot 106 is formed in the horizontal direction of the fixing member at the outer end and the first catch on the inner end. The jaw 109 is formed. The second member 100 is accommodated in the first member 105, the second locking jaw 110 is formed so as to work with the first locking jaw 109 of the first member 105 in the middle It is. When the first member 105 moves in the direction of the rotation cam 80 with the second member 100 due to the interaction between the first and second locking jaws 109 and 110. Only allowed. The inner end portion 71 of the second members 100 is accommodated in the guide member 73 to maintain a predetermined spacing (s). In addition, the roller 108 is formed by the roller pin 107 on the opposite side of the pin holding groove 82 of the rotating cam 80, the roller pin 107 is formed in the first member 105 It is accommodated in the transverse slot 106 and located at the main body side end. On the other hand, the locking means 84 for locking the second member 100 is in contact with the main body 10 is pushed into the interior of the fixing member and the locking pin 74 installed in the second member 100 is the lock The bending slot 88 formed in the member 86 is located at the outer end of the longitudinal slot formed in the longitudinal direction of the second member 100.

When the left end of the drawing is pulled from the main body 10 to open the door 20 from the closed state of FIG. 21, the hinge pin 14 is fixed along the pin access passage as shown in FIG. The door is opened away from the outside of the member. At this time, the pivoting cam 80 rotates counterclockwise around the pivoting shaft 81 by the hinge pin 14 to stay in the receiving standby position, and the roller pin 107 is the first member ( Sliding toward the opposite side of the main body 10 along the transverse slot 106 of 105, the left second member 100 in the drawing slides toward the right second member 100 so that the inner end portions 71 contact each other. Let's do it. Therefore, the right second member 100 is prevented from moving to the left side so that the door 20 is securely supported by the main body 10 about the right hinge pin 14. In addition, the locking means 84 is rotated by the repulsive force of the spring 87, the free end is protruded to the outside of the fixing member through the access groove formed on the side of the fixing member, installed in the second member 100 The locking pin 74 slides along the bending slot 88 formed in the lock member 86 and is positioned at the outer end of the horizontal slot formed in the horizontal direction of the fixing member. Therefore, the movement of the second member 100 to the left side of the drawing is prevented by the locking pin 74.

On the other hand, when the rotating cam 80 in the hinge pin receiving standby position while receiving the external force to rotate to the hinge pin receiving position while the second member 100 is maintained in one side open state, the roller pin ( 107 slides along the horizontal slot 106, but in this embodiment, the first locking jaw 109 of the first member 105 is connected to the second locking jaw 100 of the second member 100. The first member 105 is no longer moved by being caught. Therefore, the rotation cam 80 is always maintained in the hinge pin receiving standby position when the open side. That is, due to the interaction between the first and second locking jaws 109 and 110, the first member 105 may move in the direction of the rotation cam 80 together with the second member 100. Only allowed.

When the door 20 is moved back to the closed position in the open state as shown in FIG. 23, the hinge pin 14 moves inward along the pin guide groove 6 of the fixing member, The pin retaining groove 82 is pushed, and at the same time, the free end of the lock member 86 is pushed into the fixing member while contacting the main body 10 to release the locking of the second member 100. As a result, the pivoting cam 80 rotates in the clockwise direction to receive the hinge pin 14 in the pin retaining groove 82 and the second member 100 moves to the left, as shown in FIG. Likewise, the closing operation of the door is completed.

In addition, the opposing pair of latch members 70 are indirectly contacted through at least one intermediary member, and the intermediary member is preferably a compression spring, but a plurality of the intermediary members are movable along a curved path. Can form as a cloud of. Such rolling bodies may be replaced by balls or rollers, deformable elastomers or rigid bodies in multiple pieces. When the intermediate member is composed of a plurality of balls, the movement path of the balls may be formed as a bending path. In any case, by using such an intermediary member, even when the shape of the door is not flat or the transmission path cannot be straight, it is possible to easily install both side open door opening and closing devices.

As can be seen from the detailed description of each embodiment, according to the present invention is provided with a two-sided open door opening and closing device that is relatively simple in structure and thin in thickness, it can be applied to doors having various bending phenomena, A two-sided open door opening and closing device is provided in which the corners of both sides are formed in a polygonal or partial cylindrical shape close to a round so that the turning radius of both edges is reduced. Furthermore, the door was prevented from falling off due to an unfavorable external force while the one side of the door was opened.

On the other hand, each of the above embodiments are shown as a preferred illustration of the present invention, various changes and modifications are of course possible within the scope of the spirit of the present invention.

Claims (18)

At least one pair of hinge pins disposed on both end sides of either the door or the main body to form pivotal cores of the door, respectively; A fixing member fixed to the opposite main body or the door of the door or the main body, and having pin access passages at both ends thereof for allowing the hinge pieces to enter and exit the rotational direction of the door; Each of the pin holding grooves for accommodating the corresponding hinge pins introduced along the pin access passages may rotate between an accommodation standby position in which the hinge pins are not accommodated and an accommodation position in which the hinge pins are accommodated. In each of the pin access passage area of the fixing member so as to be installed, both sides of the open door opening and closing device consisting of the rotating member is rotated in conjunction with the hinge pin when the pin holding groove moves in and out, one end portion It is connected to the pivot member at a position spaced from the pivot point of the pivot member and supported by the guide member of the fixation member so as to be reciprocated along the longitudinal direction of the fix member by the pivot cam action of the pivot member. And a latch member, wherein the other end of the latch member faces each other between the two pivot members to close the door. When the one side of the door is spaced apart by a predetermined distance from the corresponding latch member is moved toward the other latch member to the other end contact each other to prevent the longitudinal movement of the counterpart latch member and the rotation of the counterpart rotation member Both sides open door opening and closing device. The two-side open door opening and closing device of claim 1, wherein the latch member is connected to be bent at least two rigid bodies. 2. The latch member of claim 1, wherein the latch member comprises a first member connected to the pivot member by the slot and the pin to reciprocate in the longitudinal direction of the fixing member, and one end thereof contacts the cam surface of the pivot member. And the other end includes a second member reciprocating in the longitudinal direction of the fixing member by forming a free end of the latch member, and between the first member and the second member, the pivot member of the first member. Both sides of the door opening and closing device characterized in that the interlocking means is provided only to allow movement in the direction with the second member. The two-side open door opening and closing device of claim 3, wherein the second member and the rotation member are in rolling contact with each other. The two-side open door opening and closing device of claim 3, wherein the linkage means is a locking step in a moving direction between the first member and the second member. The two-side open door opening and closing device according to any one of claims 1 to 5, wherein the opposing pair of latch members contact each other indirectly through at least one intermediate member. The two-side open door opening and closing device according to claim 6, wherein the intermediate member is a compression spring. The two-side open door opening and closing device of claim 6, wherein the intermediate member is movable along a curved path. The two-side open door opening and closing device according to claim 8, wherein the intermediate member is a plurality of rolling bodies. The locking means according to any one of claims 1 to 5, wherein the locking means prevents the return movement of the latch member on the open side moved to the counterpart when the door is opened, and permits the return movement of the latch member when the door is closed. Both sides open door opening and closing device further comprising. 11. The method of claim 10, wherein the locking means, the locking groove provided in the latch member, and adjacent to the locking groove is supported to be urged in the direction between the door and the main body to the fixing member so that the locking groove can be inserted into the locking groove. Comprised of a ruler pin, and one end is urged so as to protrude in the direction between the door and the main body and the other end has a release pin configured to contact the ruler pin, the ruler pin is opened in the ruler groove when the door is opened. Both sides of the open type to prevent the return of the latch member, the release pin is inserted into the inside of the holding member when the door is closed, and release the locking pin from the locking groove to allow the return of the latch member. Door opening and closing device. 12. The apparatus of claim 11, wherein the locking means is configured to operate a plurality of ruled pins by one release pin. 11. The method of claim 10, wherein the locking means, the locking plate protruding to the latch member, the fixing member is rotatably supported so as to be urged in the direction between the door and the main body and the locking pin is inserted into the movement And a first pivot lock member having a bending slot consisting of a longitudinal slot in a longitudinal direction of the fixing member and a transverse slot in a horizontal direction, wherein the locking pin is caught by the horizontal slot when the door is opened. Both sides of the open door opening and closing device for preventing the return, the closing pin is located in the longitudinal slot to allow the return of the latch member when the door is closed. The locking means of claim 10, wherein the locking means is rotatably supported so that the latching protrusion protruded from the latch member and the fixing member is urged in the direction between the door and the main body, and the locking protrusion is inserted into the locking means. And a second pivot lock member having a locking groove formed therein so that the locking protrusion is caught by the locking groove to prevent the return of the latch member when the door is opened, and the locking protrusion is separated from the locking groove when the door is closed. Both side open door opening and closing device for allowing the return of the member. The two-side open door opening and closing device according to any one of claims 1 to 5, wherein both ends of the door are formed in the shape of a partial cylinder. The door opening / closing device according to any one of claims 1 to 5, wherein the door has both end portions formed in a shape such as a partial polygon. The two-side open door opening and closing device according to any one of claims 1 to 5, wherein the hinge pin is freely rotatable about an axis. The two-side open door opening and closing device of claim 16, wherein the hinge pin has a drumster bearing.