JPH08468Y2 - Rotating closed sliding door device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a sliding door device used in a large commercial freezer, a refrigerator, a vehicle, etc., and is provided along a front wall of a fixed frame body such as a main body when closed. The invention relates to a rotary closed sliding door device in which a sliding door that has moved linearly rotates in parallel toward the fixed frame body at the final stage of the closing operation to seal the opening / closing opening of the fixed frame body.

[Prior Art] In a conventional rotary sealed sliding door device, in order to secure a high degree of sealing, a sliding door is attracted to a fixed frame side at the time of closing operation to sufficiently compress a sealing member such as a packing material or a gasket.
As disclosed in Japanese Utility Model Publication No. 56-123988 and Japanese Utility Model Publication No. 60-121921, the running rail of the sliding door has a curved portion that is closer to the front wall of the fixed frame toward the tip. .

[Problems to be Solved by the Invention] Although the accuracy of the rail bending process affects the sealing degree of the sliding door, it is actually not easy to bend a predetermined portion of the rail to a predetermined curvature, and it is difficult to use the processing machine or The cost of bending the rail is high because it requires precise adjustment of the jig and careful work.

Therefore, the object of the present invention is to provide a rotary closed sliding door device which can reduce manufacturing cost because it does not use any rail having a curved portion and can easily change the opening / closing stroke of the sliding door. It is to be.

A further object of the present invention is to provide a rotary closed sliding door device in which the sliding door is stably supported for rotation, and the sliding door can be accurately opened and closed and rotated along a horizontal plane without rattling or shaking.

[Means for Solving the Problems] Hereinafter, a detailed description will be given using the reference symbols in the accompanying drawings. In the rotary closed sliding door device of one aspect of the present invention, a pair of upper and lower guide grooves 7 are provided in the longitudinal direction. The linear rails 3 are horizontally installed above and below the opening 2 of the fixed frame body 1, and the four rails 4 are vertically and horizontally accommodated in the linear rails 3 so as to be rollable.
A guide body 6 is provided so as to project from each of the support shafts 5, and each guide body 6 is movably fitted into the guide groove 7 of each linear rail 3.

Four upper, lower, left, and right horizontal arms 8 rotatable along the upper and lower surfaces of each linear rail 3 are provided on the side surfaces of the front end portion of each guide body 6, and the left and right end portions of the upper and lower surfaces of the sliding door 10 are provided on each horizontal arm 8 Is connected by a vertical pivot 9 to the tip of the.

The four fixed cases 11 having the shaft holes 12 on the upper and lower surfaces are arranged at the middle portion and the end portion of each of the upper and lower linear rails 3 to form the receiving groove 13 that can be aligned with the guide groove 7 of each linear rail 3. The four rotating rails 14 are accommodated in the shaft holes 12 of each fixed case 11.

A spring 16 slidably urges each rotary rail 14 side,
Four stopper bodies 17 whose side projections 18 engage with the receiving grooves 13
Are accommodated in the floating groove 15 of each fixed case 11 communicating with the shaft hole 12.

At the end of the closing operation, each guide body 6 is connected to each rotary rail.
The sliding door 10 is rotated in parallel with the front surface of the fixed frame body 1 by engaging with the receiving groove 13 of 14, and the sliding door 10 is housed between the upper and lower linear rails 3.

The operation of the rotary closed sliding door device of this aspect is as follows.

When the sliding door 10 is pulled in the closing direction by an appropriate handle means, the roller 4 rolls along the linear rail 3 and the guide body 6 linearly slides along the guide groove 7 of the linear rail 3. Therefore, the sliding door 10 supported by the horizontal arm 8
Moves parallel to the front wall of the fixed frame 1 of a commercial refrigerator or the like. As shown in FIG. 2, when the sliding door 10 is open, the side projections 18 of the stopper body 17 slidingly biased by the spring 16 are engaged with the receiving grooves 13 of the rotary rail 14, so that the rotary rail is 14 is fixed to the fixed case 11 so as not to rotate,
The receiving groove 13 is held at a standby position aligned with the guide groove 7 of the linear rail 3.

At the end of the closing operation of the sliding door 10, the guide body 6 escapes from the guide groove 7 of the linear rail 3, and the receiving groove 13 of the rotary rail 14
However, as shown in FIG. 3, the restraint of the rotary rail 14 is not released in the middle stage where the entire length of the guide body 6 is not engaged with the receiving groove 13 as shown in FIG.

As shown in FIG. 4, the entire length of the guide body 6 penetrates into the receiving groove 13, and the side surface protrusion 18 of the stopper body 17 turns into the rotary rail 14.
When pushed out from the receiving groove 13 of the above, the rotation rail 14 releases the restraint with respect to the fixed case 11.

Then, when the sliding door 10 is pulled so as to be pushed toward the fixed frame body 1, the rotary rail 14, the guide body 6 and the horizontal arm 8 are axially moved.
As it rotates about 12, the sliding door 10 connected to the tip of the horizontal arm 8 by the vertical pivot 9 rotates while moving in parallel with the front wall of the fixed frame body 1, as shown in FIG. As described above, the seal member 22 housed in the space between the upper and lower linear rails 3 and mounted on the outer surface of the opening 2 is pressed.

When the rotary rail 14 and the guide body 6 rotate, the roller 4
Also rolls along the case bottom in the fixed case 11,
The support shaft 5 of the roller 4 is arranged parallel to the extension line of the guide groove 7 as shown in FIG.

According to another aspect of the present invention, in a rotary closed sliding door device, a pair of upper and lower linear rails 53 are provided in an opening 52 of a fixed frame 51, and a pair of left and right rollers 54 are rolled in a horizontally long cavity 94 of each linear rail 53. It is accommodated movably, the base end of the guide body 56 in the cavity 94 is connected to the support shaft 55 of each roller 54, and the tip end of the guide body 56 is rotated in the lateral guide groove 57 of each linear rail 53. Mating impossible.

Horizontal arm 58 that rotates along the upper and lower surfaces of the straight rail 53
Is projected from the tip of each guide body 56, and the sliding door 60 is connected to the tips of the four horizontal arms 58 vertically and horizontally by the vertical pivots 59. In each of the fixed cases 61 arranged in the middle and end portions of the upper and lower linear rails 53, an introduction groove 74 aligned with the guide groove 57 of the linear rail 53 and a cavity portion 93 aligned with the cavity portion 94 are provided. A circular shaft hole 62 is provided at the inner end of 74, and a circular shaft hole 91 is provided at the inner bottom surface of the cavity 93 so as to face the shaft hole 62.

Each fixed case 61 accommodates a cylindrical rotation rail 64 whose upper and lower ends are rotatably supported by the shaft hole 62 and the shaft hole 91,
Each rotary rail 64 is provided with a receiving groove 63 that can be aligned with the introduction groove 74 of the fixed case 61 and a cavity 92 that can be aligned with the cavity 93 of the fixed case 61 on the diameter. Fixed case 61 communicating with shaft hole 62
The tip of the stopper body 67 is housed in the floating groove 65.

Connect the base end of each stopper body 67 to the cavity 92 of the rotary rail 64.
The stopper body 67 is housed in the cavity 95 communicating with the
Side protrusions 68 that are slidably urged toward the rotary rails 64 by 66 and that engage with and disengage from the receiving grooves 63 are provided on the stopper bodies 67.

The operation of the rotary closed sliding door device of this other mode is as follows.

That is, when the sliding door 60 is pulled in the closing direction by an appropriate handle means, the roller 54 rolls along the laterally long hollow portion 94 of the linear rail 53, and the guide body 56 moves.
It linearly slides along the guide groove 57 of 53. Therefore, the sliding door 60 supported by the horizontal arm 58 is a fixed frame body for a commercial refrigerator or the like.
Move parallel to the front wall of 51.

As shown in FIG. 9, when the sliding door 60 is open, the spring 66
The side projection 68 of the stopper body 67 that is urged to slide by
Is engaged with the receiving groove 63 of the rotary rail 64, the rotary rail 64 is non-rotatably restrained with respect to the fixed case 61, and
63 is a receiving groove 74 of the fixed case 61 and a guide groove 57 of the linear rail 53.
Is held in the standby position aligned with the
92 is a hollow portion 93 of the fixed case 61 and a hollow portion 94 of the straight rail 53.
Are aligned.

At the end of the closing operation of the sliding door 60, the guide body 56 moves from the guide groove 57 of the straight line 53 and the cavity 94 to the receiving groove of the fixed case 61.
Although it engages with the receiving groove 63 of the rotary rail 64 through 74 and the hollow portion 93, in the middle stage in which the entire length of the guide body 56 is not engaged with the receiving groove 63 as shown in FIG. , Swivel rail 64
The above restraints have not been lifted.

As shown in FIG. 11, the entire length of the guide body 56 enters the receiving groove 63 and the hollow portion 92, and the side projection 68 of the stopper body 67 is pushed out from the receiving groove 63 of the rotary rail 64 by the guide body 56. At this time, the rotation rail 64 releases the constraint on the fixed case 61. At this time, the roller 54 moves in the cavity 92 of the rotary rail 64.
The whole is inside.

Then, when the sliding door 60 is pulled so as to be pushed toward the fixed frame body 61, the rotary rail 64, the guide body 56, and the horizontal arm 58 center around the upper and lower shaft holes 62 and 91 as shown in FIG. To rotate, the sliding door 60 connected to the tip of the horizontal arm 58 by the vertical pivot 59 rotates while moving in parallel with the front wall of the fixed frame body 51, and as shown in FIG. The seal member 72, which is housed in the space between the rails 53 and 53 and mounted on the outer surface of the opening 52, is pressed.

When the rotating rail 64 and the guide body 56 rotate, the roller 54
Rotates integrally with the rotary rail 64, and the support shaft 55 of the roller 54 is disposed at a right angle to the extension line of the guide groove 57 and the receiving groove 74 as shown in FIG.

[Embodiment] In the rotary hermetic sliding door apparatus according to one embodiment of the present invention shown in FIGS. 1 to 7, the linear rail 3 is constituted by cutting a groove-shaped material into an appropriate length, and the upper linear rail is provided. 3 is fixed to the front wall of the fixed frame 1 with the guide groove 7 facing downward. The lower linear rail 3 is fixed to the front wall of the fixed frame 1 with the guide groove 7 facing upward. In this example, a total of four rollers 4 with guide bodies 6 are used, two on the right and two on the left and two on the left and right.

Each of the upper and lower linear rails 3 and 3 is used in pairs,
Two upper and lower fixed cases 11 are fixed to the fixed frame body 1. The first fixed case 11 is arranged adjacent to one end side of the first linear rail 3, and the second fixed case 11 is inserted and arranged between the first linear rail 3 and the second linear rail 3. There is.

The rotation support shaft hole 12 opened on the upper surface or the lower surface of each fixed case 11 communicates with the floating groove 15 by a communication groove 23.
The narrow side projection 18 of the stopper body 17 is fitted in the communication groove 23, and one end of the biasing spring 16 formed of a compression coil spring is in contact with the wide body portion of the stopper body 17. Each fixed case 11 is provided with a receiving groove 24 on the side opposite to the floating groove 15, and the guide body 6 passes through the receiving groove 24.

The receiving groove 13 is composed of two substantially semi-disc-shaped rotating rail component pieces 14a, 14
Formed diametrically between b. As shown in FIG. 2, when the sliding door 10 is open, the receiving groove 13, the connecting groove 23 and the receiving groove 24 are aligned with the guide groove 7 of the linear rail 3. As shown in FIG. 3, the guide body 6 has escaped from the guide groove 7 of the linear rail, but when the rear end portion of the guide body 6 is engaged with the receiving groove 24, the rotary rail 14 is fixed to the fixed case 11. Remains restrained against.

The guide body 6 is formed in a rectangular parallelepiped shape, and has a support shaft 5 of the roller 4.
Is integrally molded with or is fixed to the support shaft 5. Two rollers 4 are provided at both ends of the support shaft 5 as a set. The four horizontal, vertical and horizontal arms 8 have such a length that they can project from the front surface of the linear rail 3 and can be attached to and detached from the upper surface of the guide body 6 or the lower surface of the tip body by an appropriate fastener such as a screw 19. It is fixed. The horizontal arm 8
May be non-detachably fixed to the guide body 6 by welding or the like, or may be integrally molded with the guide body 6.

The vertical pivot 9 composed of a headed lock pin is inserted into the through hole 20 at the tip of the horizontal arm 8 and is inserted into the bearings 21 on the upper and lower surfaces of the left and right ends of the sliding door 10. Since the rectangular parallelepiped guide body 6 is fitted in the guide groove 7, the horizontal arm 8 cannot rotate with respect to the linear rail 8 and the sliding door 10 is the fixed frame when the roller 4 is in the linear rail 3. The body 1 is held at a position projecting to the front side.

A seal member 22 such as a packing material or a gasket is attached to the outer surface of the opening 2 of the fixed frame 1 over the entire four periphery. In the final stage of the closing operation, the sliding door 10 that has been rotated in parallel toward the fixed frame body 1 presses the entire length of the seal member 22 with its inner surface to seal the opening 2 of the fixed frame body 1.

The rotation support shaft hole 12 of the fixed case 11 is formed in a circular shape divided at the central portion, and the rotary rail 14 is formed in a disk shape in which the central portion is divided by a receiving groove 13. An approximately semi-circular locking which is formed by projecting a retaining projection 25 on the arcuate circumferential surface of the two component pieces 14a, 14b of the rotary rail 14 and forming the retaining projection 25 outside the shaft hole 12 of the fixed case 11. The grooves 27 and 28 are rotatably engaged.

Therefore, the length of the guide body 6 can be set to a dimension corresponding to the maximum diameter of the shaft hole 12, whereby the contact length between the guide body 6 and the guide groove 7 can be made sufficiently long and the linear rail 3 It is possible to prevent the guide body 6 from rattling in the horizontal plane when traveling along the sliding door 10 and wobbling.

A fixed plate 26 is fixed to the main body of the fixed case 11, and
The substantially semicircular locking groove 27 provided on the back side of 26 and the substantially semicircular locking groove 28 provided on the upper surface side of the main body portion are formed at positions communicating with each other. Since the retaining projections 25 are fitted into the substantially semicircular locking grooves 27 and 28 like dovetails, the two component pieces 14a and 14b of the rotary rail 14 are displaced toward the receiving groove 13 side. It is stably supported by the fixed case 11 without falling.

When the entire length of the guide body 6 is fitted into the receiving groove 13 of the rotary rail 14, the stopper body 17 is provided with a positioning protrusion 30 that comes into contact with the inner wall surface 29 of the floating groove 15, so that it partially penetrates the receiving groove 13. The excessive traveling of the guide body 6 is prevented, and the guide body 6
Makes its longitudinal shaft plug coincide with the center of the shaft hole 12 to smoothly rotate.

In the rotary hermetic sliding door device according to another embodiment of the present invention shown in FIGS. 8 to 18, the upper and lower linear rails 53, 53 made of grooved members are fixed to each other via a mounting bracket 78 and a fixed frame body 51. Fixed to the front wall of the. The stopper body 67 has a pair of spring receiving holes 87 formed on the side surface opposite to the side surface projecting portion 68, and a compression coil spring having one end housed in the spring receiving hole 87.
The other end of 66 is in contact with the contact plate 79 fixed to the end surface of the fixed case 61.

The main body of each stopper body 67 is housed in a cavity 95 aligned with the cavity 92 of the rotary rail 64. In the main part of each stopper body 67, the entire length of the guide body 56 is a rotating rail.
Positioning projections 80 are provided so as to come into contact with the contact plate 79 when fitted in the receiving grooves 63 of 64, whereby the stopper body 67 is provided.
The backward sliding of is stopped at the normal position.

On the side surface of each fixed case 61, there is provided a guide groove 89 into which the overhanging portion 90 of the positioning protrusion 80 is slidably fitted, and the overhanging portion 90 abuts the inner bottom surface 88 of the guide groove 89. At this time, the side projection 68 of the stopper body 67 is maximally engaged with the receiving groove 63 of the rotary rail 64. As shown in FIG. 9, when the sliding door 60 is open, the receiving groove 63 of the rotary rail 64 is aligned with the free groove 65 of the fixed case 61, the receiving groove 24, and the guide groove 57 of the linear rail 53. .

The distal end portion of the guide body 56 that enters the receiving groove 63 through the freeing groove 57 and the receiving groove 24 is formed in a rectangular parallelepiped shape, and each corner has a sloped surface 73 for guiding when entering each groove. ing. The support shaft 55 of the roller 54 is inserted into the through hole 96 in the thick plate-shaped base end portion of the guide body 56, and each end portion is caulked.

Each horizontal arm 58 has a length capable of protruding to the front surface of the linear rail 53, and is fixed to the upper surface or the lower surface of the tip end portion of the guide body 56 by a suitable fixing tool such as a screw 69. The horizontal arm 58 may be fixed to the guide body 56 in a non-detachable manner by welding or may be integrally formed with the guide body 56.

A small diameter portion of a vertical pivot 59 inserted through a washer 84, a bearing plate 71, and a washer 83 is inserted into a through hole 70 at the tip of each horizontal arm 58, and the vertical pivot 59 is swaged at the upper and lower ends thereof to form a bearing. The plate 71 is pivotally attached to the horizontal arm 58, and the bearing plate 71 is screw 86.
It is fixed to the sliding door 60 with a fixing tool such as. A vertical pivot 59 and a recess 85 for escaping the washer 84 are provided at the left and right ends of the upper and lower surfaces of the sliding door 60.

Since the rectangular parallelepiped guide body 56 fits into the guide groove 57, when the roller 54 is in the cavity 94 of the linear rail 53, the horizontal arm 58 cannot rotate with respect to the linear rail 53, and the sliding door 60 is The fixed frame body 51 is held in a state of protruding at a right angle to the front surface side.

A seal member 72 such as a packing material or a gasket is attached to the outer surface of the opening 52 of the fixed frame body 51 over the entire four peripheries. In the final stage of the closing operation, the sliding door 60, which is rotated in parallel toward the fixed frame body 51, presses the entire length of the seal member 72 with the inner surface 82 thereof to seal the opening 52 of the fixed frame body 51.

One circular shaft hole 91 of the fixed case 61 has a slightly larger diameter than the other circular shaft hole 62, and the outer peripheral flange portion 75 of the cylindrical rotary rail 64 abuts on the inner peripheral projection portion 77 in the middle. ing. By fixing the contact plate 76, which is brought into contact with the upper surface or the lower surface of the fixed case 61, to the fixed case 61 with a fastener such as a screw,
The cylindrical rotation rail 64 is prevented from being pulled out from the fixed case 61. The upper and lower ends of the cylindrical rotary rail 64 are rotatably supported by the inner peripheral surfaces of the circular shaft holes 62 and 91 whose central portion is divided in the diameter direction.

[Advantages of the Invention] As described above, in the rotary closed sliding door device according to the first aspect, the guide body 6 is engaged with the receiving groove 13 of the rotary rail 14 at the end of the closing operation of the sliding door 10, and the stopper body 17 is provided. By releasing the restraint of the rotary rail 14 by the, and rotating the rotary rail 14 and the guide body 6 integrally around the shaft hole 12,
10 is rotated in parallel via the horizontal arm 8 and the linear rail 3
Since it does not use any rail with a curved portion which is expensive to process unlike the conventional device, the entire device can be easily manufactured and the cost can be reduced.

Further, the opening / closing stroke of the sliding door 10 can be easily and freely set by cutting the linear rail 3 obtained at this low cost into appropriate dimensions.

In the rotary closed sliding door device according to claim (2), the fixed case 61 is provided with the introduction groove 74 aligned with the guide groove 57 of the linear rail 53 and the cavity portion 93 aligned with the cavity portion 94 of the linear rail 53. A circular shaft hole 62 is provided at the inner end of the groove 74, a circular shaft hole 91 is provided at the inner bottom surface of the cavity 93 so as to face the shaft hole 62, and a cylindrical rotary rail 64 is housed in the fixed case 61. Since the upper and lower end portions of the fixed case 61 are fitted in the shaft hole 62 and the shaft hole 91 and the rotary rail 64 is rotatably supported perpendicularly to the fixed case 61, the introduction groove 74 and the cavity of the fixed case 61 are formed. When the guide body 56 is tightly fitted into the receiving groove 63 of the rotary rail 64 and the cavity 92 through the 93, the horizontal arm 58 connected to the guide body 56 stably rotates in the horizontal plane without swinging or rattling. However, the sliding door 60 can be smoothly opened / closed and rotated.

[Brief description of drawings]

1 to 7 are schematic vertical sectional views of a rotary closed sliding door device according to an embodiment of the present invention, in which the sliding door is in an open state. FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 is a plan view of an essential part of the sliding door device when a part of the guide body is engaged with the receiving groove of the rotary rail. FIG. 4 is a plan view of an essential part of the sliding door device when the restraint of the rotary rail by the stopper body is released. FIG. 5 is a vertical sectional view in a state where the sliding door is closed. FIG. 6 is a plan view of the fixed case portion. FIG. 7 is a sectional view taken along line BB in FIG. 8 to 18 are vertical sectional views of a rotary closed sliding door device according to another embodiment of the present invention. FIG. 9 is a plan view of the lower half portion of the sliding door device, and the sliding door is in a state immediately before closing. First
FIG. 10 is a plan view of an essential part of the sliding door device when a part of the guide body is engaged with the receiving groove of the rotary rail. FIG. 11 is a plan view of an essential part of the sliding door device when the entire guide body is fitted in the receiving groove of the rotary rail. FIG. 12 is a plan view of an essential part of the sliding door device when the sliding door is closed and rotated about a rotary rail. FIG. 13 is a sectional view taken along the line CC of FIG. Figure 14 is the ninth
It is the DD sectional view taken on the line of FIG. FIG. 15 is a sectional view taken along the line EE of FIG. FIG. 16 is a sectional view taken along line FF in FIG. FIG. 17 is a sectional view taken along the line GG in FIG. FIG. 18 is a vertical sectional view of the upper linear rail. 1,51 …… Fixed frame body, 2,52 …… Opening part, 3,53 …… Linear rail, 4,54 …… Roller, 5,55 …… Support shaft, 6,56 …… Guide body, 7, 57 …… Induction groove, 8,58 …… Horizontal arm, 9,59 …… Vertical axis, 10,60 …… Sliding door, 11,61 …… Fixed case, 12,62
…… Shaft hole, 13,63 …… Receiving groove, 14,64 …… Rotating rail, 14a,
14b …… Rolling rail component, 15,65 …… Floating groove, 16,66
...... Spring, 17,67 …… Stopper body, 18,68 …… Side projection, 19,69 …… Fixing screw, 20,70 …… Axis through hole, 21,7
1 …… Bearing part, 22,72 …… Seal member, 23 …… Communication groove, 73
...... Slopes for guides, 24,74 …… Reception grooves, 25 …… Retaining protrusions, 75 …… Outer peripheral flanges, 26,76 …… Attenuating plates, 27,28 …… Semi-circular locking grooves, 77 ...... Inner peripheral projection, 78 …… Mounting bracket, 29 …… Inner wall of floating groove, 79 …… Attenuation plate, 30, 80 ……
Positioning protrusions, 31, 81 ... Edge frame part, 32, 82 ... Outer peripheral back surface, 83, 84 ... Washer, 85 ... Escape recess, 86 ... Fixing screw, 87 ... Spring receiving hole, 88 …… Inner bottom of the guide groove, 89 ……
Guide groove, 90 …… Overhanging part of positioning protrusion, 91 …… Shaft hole,
92 …… Rotary rail cavity, 93 …… Fixed case cavity, 94 …… Straight rail cavity, 95 …… Stopper housing cavity, 96 …… Spindle through hole

Claims (2)

[Scope of utility model registration request] 1. A pair of upper and lower linear rails 3 installed horizontally in the upper and lower portions of an opening 2 of a fixed frame 1 and provided with guide grooves 7 in the longitudinal direction; Four sets of upper, lower, left, and right rollers 4 accommodated therein; and four upper, lower, left, and right guide bodies 6 projecting from a support shaft 5 of each roller 4 and movably fitted in the guide groove 7 of each linear rail 3. Four horizontal arms 8 protruding and provided on the side of the tip of each guide body 6 and rotatable along the upper and lower surfaces of the linear rail 3; the left and right ends of the upper surface and the lower surface of the horizontal arm 8 respectively. Sliding doors 10 connected to the tip by vertical pivots 9; Four fixed cases 11 arranged in the middle and end of each of the upper and lower linear rails 3 and provided with shaft holes 12 in the upper and lower surfaces; It is housed in the shaft hole 12 of 11,
Four rotating rails 14 each formed with a receiving groove 13 that can be aligned with the guide groove 7 of each linear rail 3; housed in a floating groove 15 of each fixed case 11 communicating with the shaft hole 12, and each rotation by a spring 16. The side projections 18 are slidably biased toward the rail 14 side, and the side projections 18 are composed of four stopper bodies 17 that engage with the receiving grooves 13. Engage with 13 to rotate the sliding door 10 parallel to the front of the fixed frame 1,
A rotary sealed sliding door device that stores the sliding door 10 between the upper and lower linear rails 3. 2. A pair of upper and lower linear rails 53 provided in the opening 52 of the fixed frame 51; a pair of left and right rollers 54 rotatably accommodated in a horizontally long cavity 94 of each linear rail 53; A guide body 56 in which a base end portion in the portion 94 is connected to a support shaft 55 of each roller 4, and a tip end portion is non-rotatably fitted in a laterally long guide groove 57 of each linear rail 53; Is projected at the tip of
Horizontal arm 58 that rotates along the upper and lower surfaces of the straight rail 53
And; Vertical pivots 59 are attached to the tips of the four horizontal and vertical arms 58.
A sliding door 60 connected by; and an introduction groove 74 aligned with the guide groove 57 of the straight rail 53 and a cavity portion 93 aligned with the cavity portion 94, which are arranged in the middle and end portions of the upper and lower straight rails 53, respectively. A circular shaft hole 62 is provided at the inner end of the introduction groove 74.
Fixed case 61 in which a circular shaft hole 91 is provided on the inner bottom surface of the hollow portion 93 so as to face each other;
Each of the upper and lower ends is rotatably supported by the shaft hole 91, and a receiving groove 63 that can be aligned with the introduction groove 74 of the fixed case 61 and a cavity 92 that can be aligned with the cavity 93 of the fixed case 61 are provided on the diameter. Cylindrical rotation rail 64; floating groove of fixed case 61 communicating with shaft hole 62
The distal end portion is accommodated in 65, the base end portion is accommodated in the cavity portion 95 communicating with the cavity portion 92 of the rotary rail 64, and the side portion 68 is slid and biased toward the rotary rail 64 by the spring 66. Groove 63
And a stopper body 67 that is engaged with and disengaged from the guide body 56 at the end of the closing operation.
And the sliding door 60 is rotated about the shaft hole 62 and the shaft hole 91 in parallel with the front surface of the fixed frame body 51 to house the sliding door 60 between the upper and lower linear rails 53, 53. Sliding door device.