TWI354089B - - Google Patents

Description

1354089 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a refrigerator. [Prior Art]

In the refrigerator described in Patent Document 1, a refrigerating chamber is disposed at the uppermost portion of the storage space inside the refrigerator main body including the heat insulating box, and a partition plate is provided below the separator to provide a temperature higher than that of the refrigerating chamber. The vegetable and fruit room kept at a high temperature is divided into a temperature-switching chamber and an ice-making ice storage chamber by a heat-insulating partition wall under the vegetable and fruit chamber, and a freezer compartment is disposed at the lowermost portion, and a dedicated one is disposed at the front opening portion. Open and close the door to close it. Then, a storage container for decompressing and storing the stored food is provided in the temperature switching chamber, and a pair of left and right support frames extending in the deep inner direction are attached to the inner surface side of the temperature switching chamber door, and the storage container is placed between the support frames. Thereby, the storage container of the temperature switching chamber is pulled out together with the door to the outside of the refrigerator. (Patent Document 1) Japanese Laid-Open Patent Publication No. 2004-218924 (paragraphs 0019, 0022, 0039, 1st, 3rd, 5th, etc.) [Summary of the Invention] However, the above-mentioned Patent Document 1 ' is a structure in which a storage container of a storage chamber is pulled out to a refrigerator together with a door, that is, a sliding structure, and a structure in which a lid is opened forward in comparison with an upper portion of a lid of the storage chamber, -5- 1354089 There is a problem with the use case. The present invention has been made in view of the above circumstances, and it is an object of the invention to provide a refrigerator which is easy to use for opening and closing a lid of a gas regulating chamber. (the means to solve the problem)

In order to solve the above problems, a refrigerator according to the present invention includes: a storage chamber having an opening for taking out a stored object; and a cover member that opens and closes an opening of the storage chamber; and a decompression means And setting the pressure of the storage chamber to be lower than atmospheric pressure; and reinforcing the support portion provided to the opening portion of the cover member for supporting the storage chamber; and a sealing member disposed on the cover member The movement between the cover member and the opening is suppressed between the opening that abuts the cover member. Further, the present invention includes: a storage chamber having a box shape, wherein the opening portion has a shape in which a left-right direction is longer than a vertical direction; and a lid member that opens and closes an opening portion of the storage chamber; and a pressure reducing means The pressure of the storage chamber is set to be lower than atmospheric pressure; and the reinforcing support portion is provided near the center of the cover member to support the opening portion of the storage chamber; and a sealing member is provided in the foregoing The lid member and the opening portion abutting on the lid member prevent movement of gas from the lid member and the opening portion. Further, the reinforcing support portion has a concave portion that retreats toward the back surface of the cover member, and has convex portions that are raised toward the front surface of the cover member on both sides of the concave portion.

1354089 Further, a glass member is provided on the upper portion of the storage compartment. The glass member is supported by the reinforcing support portion. Further, a metal plate member including a bottom wall and a side wall is provided inside the storage chamber, and the bottom wall of the plate member is supported by the support portion. Further, the sealing member has a cross section having elasticity of a v-shaped portion, and has a moving means provided in the storage chamber for moving the cover member in a direction of the opening portion, and the moving member means that the cover member faces the aforementioned The V-shaped portion of the sealing member is moved in the direction of the opening of the storage chamber to be narrowed between the cover member and the opening. Further, the sealing member is provided on the cover member ′ and is provided outside the reinforcing support portion. (Effect of the invention) The glass structure and the rear reinforcement are away from the front, the foregoing

According to the present invention, it is possible to realize a refrigerator in which the lid of the gas regulating chamber is opened and closed for ease of use. [Embodiment] Refrigerator Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the electric power 1 according to the embodiment of the present invention as seen from the front, and Fig. 2 is a cross-sectional view taken along the line A-A of Fig. 1 . <<Overall Configuration of Refrigerator 1>> 1354089

As shown in Fig. 1, the refrigerator 1 to which the present invention is applied is a refrigerating compartment 2 as a storage compartment in which a refrigerating temperature zone of 6 ° C or so is disposed at the uppermost portion, and a refrigerating compartment of 6 ° C is disposed at the lowermost portion. The temperature belt serves as the storage room of the vegetable and fruit chamber 5, and as shown in Fig. 2, between the refrigerating chamber 2 and the vegetable and fruit chamber 5, the compartments kl, k2, and k3 are respectively arranged to be separated from the two chambers. The freezing temperature zone below °C (for example, the temperature zone of about -20. (: 〜 18 °C) is the ice making compartment 3a of the freezer compartment, the quick freezing compartment 3b, and the freezing compartment 4. Refrigerator 1, Doors 6 to 10 having a heat insulating structure for closing the opening of the front surface of the storage chambers 2 to 5 are provided in the front, and the outer peripheral frame portions other than the doors 6 to 1 are made of a steel plate outer case 1 1 and made of resin. The inner tank is provided with a urethane foamed heat insulating material and a vacuum heat insulating material (not shown) which are insulated from the outside air. The refrigerator compartment door 6 (6a) for closing the opening of the front surface of the refrigerator compartment 2 , 6b), consisting of two doors with two doors on the left and right, on the other hand, blocking the ice making chamber 3 a The ice making compartment door 7 of the front opening, the quick freezing compartment door 8 that closes the opening of the front side of the quick freezing compartment 3, the freezing compartment door 9 that closes the opening of the freezer compartment 4, and the fruits and vegetables that open the front surface of the vegetable compartment 5 The door 10 is constituted by a drawer type door which is simultaneously pulled out from the container in the storage compartment. In the refrigerator 1, the refrigeration cycle for performing the above freezing and refrigerating is a compressor, a condenser, a capillary tube, and An evaporator that removes the heat of vaporization of the refrigerant and becomes a cooling source, and further connects the compressors in order. -8-

1354089 The evaporator that serves as the cooling source is disposed in the freezer compartment, and the cold air of the evaporator is sent to the ice making compartment 3a 3b and the freezing compartment 4 by the blower fan, and the openable and closed throttle is clamped once the temperature is lower than the refrigerating temperature. The (damper) device is sent to each of the storage compartments of the refrigerating compartment 5. Further, the cold air has a circulating structure of cold air which is circulated for each storage, and each of the storage chambers 2 to 5 is controlled by the temperature of the control device of the responsive sensor, and the temperature is maintained. 6a shown in Fig. 3 of the cross-sectional view taken along the line BB of Fig. 1 is a side of the door storage 6a 1 in which a pocket-shaped translucent resin is rotatably supported around the support shaft S 1 , and is A rotating partition plate 6a2 that is swingably formed by twisting a spiral pin and a guide is provided on the back surface. The rotating partition 6a2 is closed between the storage compartment doors 6a and 6b at the position along the left side of the refrigerating compartment door 6a when the refrigerating compartment doors 6a, 6b are closed (Fig. 1), and when the refrigerating compartment is "facing" In the thickness direction of the refrigerating compartment door 6a (the two-dot chain line is displayed so as not to obstruct the user), the refrigerating compartment door 6b on the right side is supported by the support shaft S2, and is placed in a drink or the like. The pocket-shaped translucent door storage 6b1 protrudes from the inner side. <<Structure of the decompression chamber 13 as the gas adjustment chamber>> The decompression chamber 13 shown in Fig. 3 is a vacuum pump After 3 and 4, the chilling chamber will be occluded 2 and the vegetable and fruit room compartments will be cooled. After using the temperature to hold the predetermined refrigerator door, the beverage will be placed in the internal spring spring pressure plug (refer to the air-cooling gas). When the air is opened from the cold 3 6 a), the air is oscillated from the resin to form the air, and the air is tempered to a temperature of -9 lbs. (70 kPa). It is a special air environment such as oxidation prevention of food, maintenance of freshness of fruits and vegetables, etc. In addition, if the air pressure is higher than 0.7 When the air pressure is, for example, 0.8 MPa (80 kPa), the differential pressure with the external atmospheric pressure is lowered. Therefore, the strength of the decompression chamber 13 can be lowered, and the capacity of the vacuum pump 12 can be lowered.

As shown in Fig. 3, in a state where the refrigerating compartment door 6b is closed, a predetermined space is formed between the door storage 6b1 of the refrigerating compartment door 6b and the decompression chamber cover 16 of the decompression chamber 13. They are constructed in such a way that they do not touch each other. Fig. 4 is a perspective view showing the structure of the decompression chamber 13 from the obliquely upper front side. The decompression chamber 13 forms an outer peripheral wall by the peripheral member 14, the glass plate G, and the decompression chamber cover 16, wherein the peripheral member 14 has an opening portion on the upper surface and the front surface and is formed in a flat inner portion to be long. The substantially rectangular parallelepiped shape is formed by the transparent tempered glass on the occlusion surface, and the decompression chamber cover 16 is rotatably supported around the horizontal fulcrum 24 S below the front opening portion and is front and rear. Remove the contents from the inside. In addition, when the decompression chamber cover 16 is opened, it is moved forward by a predetermined distance, for example, 10 mm, while being pulled forward toward the front, and then the upper portion moves while turning forward. . On the other hand, in the case where the decompression chamber cover 16 is closed, the strong plate member 15 has a substantially rectangular parallelepiped shape which is opened along the front surface and the upper surface of the shape of the outer peripheral member 14 toward the -10- 1354089. The reinforcing plate 15 is formed by, for example, using a metal plate such as a steel plate having a thickness of 1.6 mm and drawn by drawing, and two side walls 15a, 15b, a bottom wall 15c, and a rear wall 15d are continuously formed by a curved surface, such as In the sixth drawing, the reinforcing portions 15h projecting inwardly are formed on the side wall 15a, 15b and the bottom wall 15c.

In this way, the reinforcing plate 15 can be formed in a box shape by a curved surface, and has a plurality of reinforcing portions 15h protruding inwardly to improve the rigidity, and is resistant to a large difference caused by the difference between the external atmospheric pressure and the internal low pressure. Load. Further, as shown in FIG. 4, FIG. 6, and FIG. 7, a rectangular shape for holding the reinforcing plate 15 in the outer peripheral member 14 is formed on the upper edge portions of the side wall portions 15a and 15b and the rear wall I5d. The mounting portion 15t. Further, as shown in Fig. 7, the both sides of the bottom wall 15c of the reinforcing plate 15 are extended in the front-rear direction (the left-right direction of the paper surface in Fig. 4) to guide the food tray 17 in a concave shape. A pair of guide grooves 15m, 15m, and the food tray 17 can be smoothly moved in and out. The food tray 17 disposed in the reinforcing plate 15 is a transparent resin molded article such as AS, and as shown in Figs. 6 and 7, has two side walls 17a and 17b, a bottom wall 17c, a rear wall 17d, and a front wall. 17e. In the front wall 17e of the food tray 17, a concave portion 17f for arranging a reinforcing support portion 后 which will be described later is formed. As shown in Fig. 6, a food tray 17 is formed at the lower end portions of the front side walls 17e of the concave portion 17f. 12- 1354089 A pair of attachment claws 17t and 17t attached to the decompression chamber cover 16 and interlocking the opening and closing operation of the decompression chamber cover 16. The mounting claws 17t, 17t' are formed in a semi-cylindrical shape in which the lower portion is opened, and the food tray 17 is placed on the reinforcing plate 15 in the decompression chamber 12 and engaged with the protrusion on the back side of the decompression chamber cover 16. In the parts I6g and 16g (refer to Fig. 18), the food tray 17 is attached to the decompression chamber cover 16, and the opening and closing operation of the decompression chamber cover 16 is linked.

Therefore, the 'user' can easily take out the food in the food tray 17 in the food tray 17 which is pulled out in accordance with the opening and closing operation of the decompression chamber cover 16. As shown in Fig. 6 and Fig. 7, the glass plate G is made of tempered glass having a very rigid and strong transparent material, and is formed into a transparent rectangular plate shape. The annular spacer Gp attached to the periphery of the glass sheet G is a member for maintaining airtightness between the glass sheet G and the peripheral member 14, and rubber having elastic properties can be used for ensuring airtightness. The material has a groove into which the glass sheet G is inserted on the inner peripheral surface, and is formed into a ring shape. Further, a box-shaped casing made of metal may be appropriately selected and used in the peripheral member 14 without using the structure of the glass plate G. By using a box-shaped casing made of metal, it is possible to increase the strength of the decompression chamber 13. Fig. 8 is a perspective view showing the main part of the steel plate protective sheet 19 attached to the side of the decompression chamber 13 shown in Fig. 4, and showing the main part. As shown in Figs. 4 and 8, on the outside of the side walls 14a, 14b of the peripheral member 14, for guiding horizontally by the guiding members 24, 25-13-)

1354089 (refer to FIG. 17 and FIG. 29), the second guide groove guide member which extends in the front-rear direction toward the decompression chamber 13 in the decompression chamber cover (the left-right direction of the paper surface in FIGS. 4 and 8) (not shown) 'and the guide roller 21a of the shaft support, and Fig. 9 to Fig. 16 show the decompression chamber diagram of the process of changing the decompression chamber 13 from the closed state to the fully open state; Fig. 17 is a ninth diagram FF line profile. In addition, the ninth figure shows the state in which the opening and closing handle 26 is horizontally and forwardly facing the upper pressure chamber cover 16 (the left side of the paper of FIG. 9 is moved leftward, and the sixteenth figure shows the opening and closing handle 26, and the decompression chamber cover 16 is horizontal and forward. The upper portion of the cover 16 is moved forward toward the front side, and the front horizontal chamber cover 16 is fully opened to be fully opened. Here, FIGS. 10 to 15 show the process from the state of the ninth figure. When the decompression chamber cover 16 of the decompression chamber 13 is in the closed state, although the decompression chamber cover 16 is closed from the fully open state on the other hand as shown in Figs. 9 to 16, the migration is reversed. Further, as shown in FIGS. 16 to 9 , as shown in FIGS. 4 , 8 , and 17 , the bottom surface wall 14 c of the peripheral member 14 is fixed to the right and left pinion gears 22a and 22b. The rotation of the decompression chamber cover 16 shown in Figs. 9 to 16 is moved in the front-rear direction, and the guides 2b of the screw connectors 20b, 20b (refer to the decompression chamber cover 16 of the seventh embodiment) The right side view of 1 3: the side is pulled up and subtracted: the side is slightly pulled up and pulled up. After that, the decompression chamber moves and the state of the decompression map The first state is open to the full open: process, but is brought to the occlusion state J process. 'Show, in the decompression chamber: freely support the step shaft 23, it is desirable to: occlusion to open -14 - 1354089 action or from open to occlusion Therefore, the decompression chamber cover 16 is not tilted and can be pulled straight. As shown in Figs. 4 and 8, as the front and rear directions for performing the decompression chamber cover 16 ( The guide members 24 and 25 of the member moving in the left-right direction of the paper in the figures of Figs. 9 to 16 are provided on the left and right sides of the decompression chamber 13. The guide members 24 and 25 have the same configuration. Therefore, only the guiding member 24 will be described.

The guide member 24 is formed of a resin such as a polyacetal copolymer (a registered trademark of PolyPLASTICS) which is excellent in mechanical properties, and a rack gear is formed along the length direction of the lower surface ( The rack gear is 24 g, and the first guide groove 24a of the guide roller 21b is extended in the front-rear direction at the substantially central portion. Further, the rear side of the upper portion of the decompression chamber 13 is pivotally supported by the second guide groove 20b extending horizontally from the front toward the inside in the front-rear direction (the fourth and eighth drawings). Guide roller 24r guided in the left and right direction). Then, at the tip end portion of the guide member 24 on the right side of the decompression chamber 13, the decompression chamber cover 16 is rotatably supported around the fulcrum 24s, and the guide member on the left side of the decompression chamber 13 Before the 25th tip end portion, the decompression chamber cover 16 is rotatably supported around the same fulcrum. Thus, the guide roller 24r of the guide member 24 can be guided in the front-rear direction by the second guide groove 20b on the right side of the decompression chamber 13, and as shown in Figs. 4, 8, and 17, The first guide groove 24a of the guide member 24 can be guided by the guide roller 21b on the right front side of the decompression chamber 13. -15- 1354089 Similarly to the guide member 24, the guide roller of the guide member 25 on the left side can be turned forward and backward by the second guide groove (corresponding to the second guide groove 20b on the right side) on the left side of the decompression chamber 13 The direction is guided, and as shown in Fig. 1, the first guide groove 25a of the left guide member 25 can be guided by the guide roller 21a on the left front side of the decompression chamber 13.

Further, as shown in FIG. 4, FIG. 8, and FIG. 17, the rack gear 2^g of the guide member 24 and the rack gear 25g of the guide member 25 are respectively engaged and fixed to be rotatably supported. The pinion gears 22a, 22b that rotate the synchronizing shaft 23 below the decompression chamber 13 and are synchronized with the synchronizing shaft 23, and the guiding members 24, 25' are synchronized in the left and right directions, and are oriented in the front-rear direction (Fig. 9 to The left and right direction of the paper of the figure 16 moves. With this configuration, the decompression chamber cover 16 is in the front-rear direction (the left-right direction of the paper surface in the ninth to sixteenth drawings) in the opening and closing operation shown in the ninth to sixteenth drawings of the decompression chamber 13. During the movement, it can be moved horizontally because it can be supported at two points on both sides. Further, the decompression chamber cover 16 can be synchronized to the left and right by the driving of the synchronized left and right pinions 22a and 22b. Therefore, it is possible to perform a smooth reciprocating linear motion without tilting left and right in the horizontal plane. <<Structure of Decompression Chamber Cover 16>> As shown in Figs. 4, 5, and 8, the support shafts 24, 25 and 25 of the guide members 24 and 25 can be The decompression chamber cover 16 rotatably supported at the lower portion rotatably supports the opening and closing handle 26 around the support shaft 16s provided on both sides thereof, and can constitute the difference 16 shown in FIGS. 5 and 6. - 1354089 Pressure vent valve V. The user can hold the opening/closing handle 26 to perform the opening and closing operation of the decompression chamber cover 16 and the locking operation when the decompression chamber cover 16 is closed, and the opening and closing operation of the differential pressure vent valve V can be performed. In addition, the differential pressure vent valve V means that the decompression chamber 13 is decompressed by the vacuum pump 12, and the atmospheric pressure outside the decompression chamber 13 and the pressure inside the decompression chamber 13 are decompressed. Since the load applied to the decompression chamber cover 16 by the differential pressure is increased, the decompression chamber cover 16 cannot be directly opened by a human hand without any means. Therefore, the decompression chamber cover 16 can be easily opened by the differential pressure vent valve V being inserted into the inner and outer spaces of the decompression chamber cover 16 and eliminating the internal and external pressures and releasing the load caused by the differential pressure. As shown in Fig. 6, the decompression chamber cover 16 is provided with a gasket 16p of an elastic material at the inner peripheral edge of the peripheral member 14 when closed, and the spacer 16p performs peripheral members. The seal between the 14 and the decompression chamber cover 16. In the embodiment, the hardness of the spacer 16p is set to 30 degrees. As shown in Fig. 6, the cross section of the spacer 16p has a recess 16pl which is recessed on the inner side in the center of the outer circumference and is formed into a ring shape. The spacer 16p is softly elastically deformed in the recess 16pl even when the decompression chamber cover 16 is somewhat inclined to the peripheral member 14 and can be absorbed and biased to be surely sealed. The peripheral member 14 is interposed between the decompression chamber cover 16. Further, the spacer 16p may be provided on the side of the peripheral member 14 without being provided to the decompression chamber cover 16. As shown in Fig. 4, the decompression chamber cover 16 is formed of a resin of -17-1354089 such as opaque ABS to form an outer peripheral portion of 16g, and the central portion 16c is a food which can be visually stored in the decompression chamber 13. In this manner, it is molded by a resin such as transparent AS.

As shown in Fig. 4, the both side portions 16c1, 16cl of the central portion 16c of the decompression chamber cover 16 are used to open and close the handle 26 and the decompression chamber cover when the opening and closing handle 26 is rotated to the decompression chamber cover 16. In the space of 16, the distance between the side edges 16cl and 16c of the decompression chamber cover 16 and the rotation locus of the rod 27 of the opening and closing handle 26 is set to be less than or equal to, for example, 7 mm or less, and is substantially opened and closed. The arcuate path of the rod 27 of the handle 26 is formed to have a shape that bulges outward. As shown in Fig. 6, the central portion 16c2 of the decompression chamber cover 16 is recessed in such a manner that the outer surface side thereof has a user's hand and can open and close the space occupied by the handle operating portion 36 of the handle 26. The shape that enters the inner side. As described above, the decompression chamber cover 16 itself has a shape having irregularities in the deep internal direction (the horizontal direction of the paper surface in Fig. 6) as viewed from the front side of the decompression chamber cover 16. Thereby, the load applied to the decompression chamber cover 16 during decompression is dispersed. Therefore, it is possible to prevent warpage, deformation, and the like of the decompression chamber cover 16 itself at the time of decompression. Here, the front surface of the peripheral member 14 is opened, and a support member for supporting deformation of the outer casing member 11 is not provided. Once the pressure is reduced in a state where the support member is not provided, the amount of deformation of the front opening becomes large. Further, the decompression chamber 13 has a box shape, and the front surface opening of the outer casing member is a rectangular shape which is longer in the left-right direction than the vertical direction. Therefore, in the entire outer casing member 11, the amount of deformation at the time of decompression becomes maximum in the front opening -18 - 1354089. Further, once the support member is provided at the front opening, since the front opening is provided for taking out the stored object, there is a fear that the storage of the stored product is hindered. In view of the above, as shown in FIG. 6 and FIG. 10, a reinforcing support portion which is formed inwardly on the inner side of the central portion 16c2 of the decompression chamber cover 16 as a front support upper and lower support portion is formed. .

Fig. 18 is a perspective view of the decompression chamber cover 16 when the decompression chamber cover 16 shown in Fig. 16 is fully opened from the rear obliquely upward. As shown in Fig. 18, the reinforcing support portion 减压 of the decompression chamber cover 16 is continuously formed with an outer peripheral upper wall surface 竖1, an outer peripheral lower wall surface Η2, and two side wall surface Η3 which are erected on the inner side, and the outer peripheral upper wall surface Η1, outer circumference A plurality of reinforcing ribs hr are formed between the lower wall surface and the upper and lower sides. Thereby, the take-out operation of the storage material is not hindered, and the front opening of the outer casing member 1 1 can be supported and reinforced. Further, cylindrical protrusions 16g and 16g for interlocking the opening and closing of the food tray 17 and the decompression chamber cover 16 are formed on the outer surface of the side wall surface H3 of the reinforcing support portion 减压 of the decompression chamber cover 16. One of the food trays 17 is engaged with the attachment claws i7t and i7t (see FIG. 6) in the projections 16g and 16g, and the food tray 17 is pulled out to the outside in conjunction with the opening and closing operation of the decompression chamber sound 16. The user can easily and easily take out the food in the food tray 17. As shown in Fig. 6, when the decompression chamber cover ι·6 is closed and decompressed, the reinforcing support portion η on the inner side of the decompression chamber cover 16 is directly abutted below the glass plate G -19 - 1354089 The bottom surface 14e of the peripheral member 14 in the decompression chamber 13 and the bottom surface of the reinforcing plate 15 in the decompression chamber 13 are connected or indirectly supported. The wall 15c. Thereby, the load applied to the face wall 14e and the glass sheet G before being applied to the peripheral member 14 from above is supported by the differential pressure between the atmospheric pressure outside the decompression chamber 13 and the low pressure in the decompression chamber 13, and is applied to the periphery in accordance with the lower portion. The load due to the differential pressure of the bottom wall 14c of the member 14 is configured to suppress deformation of the decompression chamber 13. Moreover, with the above configuration, the strength (rigidity) of the decompression chamber 13 can be maintained, and the inside of the decompression chamber 13 can be confirmed in a reduced pressure state. Further, it is possible to prevent the reinforcing plate 15 from floating during decompression. In other words, the reinforcing plate 15 has a bottom wall 15c that floats due to the negative pressure at the time of pressure reduction. Once the reinforcing sheet 15 floats, a gap is formed between the outer casing member 11 and the reinforcing sheet 15. This gap is a deformation amount in which the outer casing member 1 1 is further deformed by the negative pressure. Therefore, in the present embodiment, the reinforcing plate member 15 is prevented from floating by the reinforcing support portion Η. Thereby, it is possible to prevent a gap from being formed between the outer casing member 1 1 and the reinforcing plate 15 at the time of pressure reduction. That is, the amount of deformation of the outer casing member 11 can be reduced. Further, the spacer 16p is provided outside the reinforcing support portion 减压 of the decompression chamber cover 16. Specifically, the spacer 16p is provided in the front surface of the decompression chamber cover 16 or the outer casing member 1 to improve the sealing property. At this time, the spacer 16 6ρ is provided to be located further outside than the reinforcing support portion 。. Here, the present invention is further outward than the trapping support portion ,. In the present embodiment, as shown in Fig. 18, the periphery of the reinforcing support portion Η is referred to as the vicinity of the edge portion of the back surface of the decompression chamber cover 16. Further, the position of the spacer 16p is not limited to the above position as long as it can suppress the entry and exit of the gas -20-1354089 between the decompression chamber cover 16 and the front opening of the outer casing member 1 1. Further, the position of the inner direction of the liner 16p (the left and right direction of the paper in FIGS. 26 to 28) is closer to the front than the reinforcing support portion ( (the paper in the 26th to 28th drawings) Set in the way of the left direction). Thereby, the sealing between the peripheral member 14 and the decompression chamber cover 16 and the reinforcement of the front opening of the outer casing member 14 can be simultaneously performed. Further, the position of the inner direction of the depth of the spacer 16 6ρ may be located above and below the reinforcing support portion ( (the position closer to the right direction than the spacer 16 ρ shown in FIGS. 26 to 28). Set by way. Thereby, the effects of the above embodiment can be achieved in the same manner. Further, as shown in Figs. 5 and 6, the differential pressure vent hole 16a inserted into the decompression chamber 13 of the differential pressure vent valve ν is provided in the central portion 16c2 of the decompression chamber cover 16, and is inferior. A valve seat 16z made of rubber or the like having elastic properties and flexibility is disposed around the pressure vent hole 16a. Then, as shown in Fig. 6, the valve opening/closing member 35 having the valve body 35t that opens and closes the differential pressure vent valve V is rotatably provided around the fulcrum shaft 35 s around the fulminating chamber cover 16. Here, the support shaft 35s that rotates the valve opening/closing member 35 and the support shaft 16s (see Fig. 8 and Fig. 1) on which the opening and closing handle 26 rotates are configured to be concentric, and the valve opening/closing member 35 is made The opening and closing operation of the opening and closing lever 26 is configured to interlock with the opening and closing operation of the valve body 35t. Fig. 29 is a perspective view showing the decompression chamber cover 16 after the decompression chamber cover 16 of Fig. 5 is cut by the HH line section; Fig. 30 is a view showing the reduction of the dice 5 by the Ι-Ϊ line profile. A perspective view of the decompression chamber 21 - 1354089 cover 16 after the pressure chamber cover 16 is cut. Further, Fig. 31 is a perspective view showing the decompression chamber cover 16 in which the decompression chamber cover 16 of Fig. 5 is cut by a D-D line cross section. As shown in Fig. 29 and Fig. 30, the valve opening and closing member 35 is formed with a flat rectangular parallelepiped opening and closing guide 35g for rotating the opening and closing handle 26 when the opening and closing handle 26 is opened and closed and the opening and closing valve operation of the valve body 35t. 35h, the opening and closing guides 35g and 35h each have a side surface 35gl parallel to a line connecting the center of the support shaft 35s (see FIG. 6) of the valve opening and closing member 35 and the center of the rod 27 of the opening and closing handle 26, 35g2, 35hl, 35h2. Further, as shown in Fig. 9, the right and left side portions of the decompression chamber cover 16 are rotatably supported around the support shafts 37s and 37s so as to be guided by the lid lock guide members 30 and 30 which will be described later. The handle holding members 37 and 37 that hold the opening and closing handle 26 at predetermined positions are opened and closed, and are biased upward by the torsion coil spring 32 (see FIG. 25, FIG. 26). The handle holding members 37 and 37 are respectively formed with holding projections 37t and 37t, and the holding projections 37t and 37t are respectively engaged with the claw portions 28t of the support portions 28 and 29 of the opening and closing handle 26 (refer to Fig. 10 and 11 and 13) and 29t (refer to Fig. 18), the opening and closing handle 26 is held at a predetermined position. <<Structure of opening and closing lever 26>> As shown in Fig. 4, Fig. 9, and Fig. 18, the 'opening and closing handle 26' is provided with a rod body 27 composed of an aluminum rod; The end portions are respectively fixed to the metal support portions 28, 29 at the left and right ends of the rod body 27; and the handle operation portion 36 for inserting the -22-1354089 rod body 27 to the center portion for handle operation. The left and right support portions 28 and 29 of the opening and closing handle 26 are rotatably supported by the center portions around the left and right support shafts 16s and 16s of the decompression chamber cover 16, respectively, and are rotatably supported by the guide roller 28r. And 29r, and a projecting claw portion 28t for fitting to the handle holding member 37 for holding the opening and closing handle 26 at the upper end position is formed.

<<Locking mechanism of opening/closing handle 26>> As shown in Fig. 8, the opening/closing handle 26 is rotatably supported around the support shafts 16s and 16s of the left and right side portions of the decompression chamber cover 16 so that The rod body 27 is located at the lowermost portion of the rotational locus around the right and left support shafts 16s and 16s, and is in a state in which the opening and closing handle 26 is closed and the decompression chamber cover 16 is locked. On the other hand, as shown in FIG. As shown in the figure, when the rod body 27 is positioned above the rotation locus around the right and left support shafts 16s and 16s, the opening and closing handle 26 is opened to open the decompression chamber cover 16. The guide rollers 28r and 209r of the left and right support portions 28 and 29 of the opening and closing handle 26 are fitted into the lid lock guide member 30 which is provided to the side walls 14a and 14b of the both side portions of the decompression chamber 13 respectively. 30, and the locking of the decompression chamber cover 16 is performed by the opening and closing handle 26. 19 to 21 show that the decompression chamber cover 16 of the decompression chamber 13 shown in Fig. 9, the support portion 28 of the opening and closing handle 26, and the opening and closing handle 26 around the lid lock guide member 30 are locked. An enlarged picture of the process. In addition, FIG. 19 is a schematic view showing the decompression chamber cover 16 in a locked open state by opening and closing the handle 26; FIG. 21 is a view showing the decompression chamber cover 16 being locked by the opening and closing handle 233-154089. Schematic diagram: The second diagram shows a schematic diagram of the state before locking in Fig. 21. • In addition, since the left cover lock guide member 30 has the same configuration as the right cover lock guide member 30, only the right cover lock guide member 30 will be described, and regarding the left side The description of the lid lock guide member 30 will be omitted. As shown in Figs. 19 to 21, the cover locks the guide member 30, such as a resin-molded member, which guides the guide roller 28r to the curved inner side wall guide 30a from the side. ° Introducer. The inner side wall guide 3a of the lid lock guide member 30 is formed into a shape as follows. That is, as shown in Fig. 19, once the inner side wall guide 30a of the straight line of the support shaft 16s and the guide roller 28r of the guide roller 28r is opened and closed by the opening and closing lever 26 The size between the intersection 30al and the support shaft 16s is set to c 'again' as shown in Fig. 20, and the support shaft 16s and the guide roller 28r which are connected before the decompression chamber cover 16 is locked by the opening and closing handle 26 The dimension between the intersection 30a2 and the support shaft 16s of the inner side wall guide 30a of the axis is set to b, and as shown in Fig. 21, the decompression chamber cover 16 is locked by the opening and closing handle 26 In the tight state of the support shaft 16s and the axis of the guide roller 2 8 r, the intersection of the inner side wall guide 3 0 a of the line 3 0 a and the size of the support shaft 1 6 s are set to a, then the a, b, c Between, to establish b (state before locking (Fig. 20)) > a (locking state (Fig. 21)) > c (locking open state (Fig. 19)) -24 - 1354089 The relationship curve is continuous, and the shape of the inner side wall guide 30a shown in Fig. 19 to Fig. 2 is formed in a side view. The shape of the inner side wall guide 30a of the lock guide member 30 according to the cover is in a state before the decompression chamber cover 16 is locked by the opening and closing handle 26 shown in Fig. 20, due to the connection of the support shaft 16s and The distance between the intersection 30a2 of the inner side wall guide 30a of the guide roller 28 ι and the fulcrum 16s is 0^ the maximum b, so as shown in Fig. 20, the guide roller 28 of the support portion 28 and the cover The inner side wall guide 30a of the locking guide member 30 strongly abuts or leaves, and brings the user of the opening and closing handle 26 supported by the support portion 28 to the opening and closing operation with a heavy feeling, and after giving a grip feeling In the locked manner, the inner side wall guide 30a is formed. In other words, the user grips the handle operating portion 3 6 of the opening and closing handle 26 and presses the handle operating portion 36 of the opening and closing handle 26 downward from the state before the locking in FIG. 20 to the second drawing. The situation of the locked state shown, from

b (state before locking (Fig. 20)) > a (locking state (Fig. 21)), in which the guide roller 28r of the support portion 28 in the neutral state leaves the cover lock guide member 3 Within 0, the side wall guide 30a, that is, the degree of strong abutment becomes gentle, and in the locking movement operation of the user toward the opening and closing handle 26, the opening and closing handle 26 is given the state before being locked. It is constructed by pulling in the feeling of being locked. -25-

1354089 Then the 'user' holds the handle 36' of the opening and closing handle 26 and opens and closes the lever of the handle 26 from the state before the locking of Fig. 20; 2 7 lifts up to the top of FIG. In the case of the locked open state _ the size between the fulcrum of the inner side wall guide 3〇a of the straight line connecting the support shaft 16s and the axis of the guide roller 28ι and the support shaft 16s is a, because it is compared with the state before the lock ( Referring to Fig. 20), the locking state (refer to Fig. 21) is the minimum, so although it passes through the heavy touched portion before the locking, the supporting portion is in the open state from the state of the H 20 map to the opening of the 19th graph. The guide 28r of 28 does not contact the inner side wall guide 30a of the cover locking guide member 30, and the inner side wall guide 30a is formed in such a manner that the opening and closing handle 26 is operated with a gentle feeling. <<Modification of Locking Mechanism of Opening and Closing Handle 26>> Next, a modification of the locking mechanism of the opening and closing handle 26 will be described. 22 to 24 are diagrams showing the lock opening of the cover locking mechanism of the opening and closing handle 26 of the modification from the neutral state to the locked state; FIG. 22 is a schematic view showing the locking opening; The figure shows a schematic view of the state before the locking of the chemical example: Fig. 24 shows a schematic view of the locking shape. In the cover locking mechanism of the opening and closing handle 26 of the modified example, the guide roller 28r of the support portion is changed into the slit guide of the support portion, and the inner side wall guide 30a of the lid lock guide member 30 is changed to be light-guided. In addition, since the other components are not changed, the same component is attached to the component symbol of the -26-1354089 component of the intermediate-body-formed roll 5 in the intermediate portion of the embodiment. Indicates 'detailed description is omitted. As shown in Fig. 22, in the side wall 14b of the peripheral member 14' of the decompression chamber 13', a guide roller rl' is rotatably supported instead of the lid lock guide member.

The support portion 28' of the opening and closing handle 26' is manufactured, for example, by press-working a steel plate, and rotatably supports a rod body 27' having an aluminum rod at one end thereof around the support shaft 16s', and the other end portion On the side, a roller guide 28 8a which is curved and guided by the guide roller rl' is formed in a side view. In the lock-open state shown in Fig. 22, the roller guide 28a' of the support portion 28' of the opening and closing handle 26' is formed to completely liberate the guide roller rl' of the peripheral member 14'. Once the distance between the contact point of the guide member rl' and the roller guide 28a' and the support shaft 16s' in the state before the lock is shown in Fig. 23 is set to b', the figure 24 is When the distance between the contact point of the guide roller rl' of the peripheral member 14' and the roller guide 28a' and the support shaft l6s' in the locked state is set to a', it becomes b' (the state before the lock (the first 2 3))> (The state of the lock state (Fig. 24)) is continuous, and the shape of the roller guide 28a' shown in Figs. 2 to 24 is formed in a side view. In the modified example, in the locked open state shown in Fig. 2, in addition to the support portion 28 of the opening and closing handle 26' of the -27-1354089, the roller guide 28a completely liberates the guide roller of the peripheral member 14'. Other than rl, the rest of the configuration is the same as that of the embodiment. Since the same operational effects can be obtained, detailed description will be omitted. Further, in the same manner as the foregoing embodiment, in the locked open state, the roller guide 28a' of the support portion 28' of the opening and closing handle 26' may of course be formed in contact with the guide roller rl' of the peripheral member 14'. And become

b' (state before locking (Fig. 23)) > (locking state (Fig. 24)) > c' (locking open state) The relationship between the curves is continuous, formed by the side view The shape of the roller guide 28a' shown in Figs. 2 to 24 is shown. <<Elastic spring of opening and closing handle 26>>

Fig. 25 is a FF line section view of the decompression chamber cover 16 shown in Fig. 5; and Fig. 26 is a GG line section view showing the decompression chamber cover 16 shown in Fig. 5, and shows the relative The decompression chamber cover 16 rotates the opening/closing handle 26 downward and closes the decompression chamber cover 16 to the elastic pressure of the torsion coil spring 32 when it is in the closed state. Further, Fig. 27 is a G-G line cross-sectional view of Fig. 5 when the opening/closing handle 26' is rotated with respect to the decompression chamber cover 16 and the elastic pressure of the torsion coil spring 32 is at the neutral position. As shown in Fig. 5, Fig. 25, and Fig. 26, in the decompression chamber cover 16-28-

1354089 is provided with a torsion coil spring 32 between the opening and closing handle 26 supported by the decompression chamber cover 16, and the torsion coil spring 32' is to open and close the handle 26 from the neutral position of the coil spring 32 shown in FIG. Rotating downward and pressing the operation of the decompression chamber cover 16 shown in Fig. 21 in a locked state, that is, pressing the closing handle 26 downward, assists the locking operation. Further, in the range from the torsion coil spring 32 shown in Fig. 27, the opening/closing handle 26 is rotated upward and is in the locked open state of the pressure reducing cover 16 shown in Fig. 19, it is opened and closed. The handle 26 is biased upward to assist in the opening operation. Fig. 28 is a G-G line cross-sectional view showing the fifth decompression chamber cover 16 of the operation of the torsion coil spring 32 when the decompression chamber cover 16 is rotated above the opening/closing handle 26. As shown in Figs. 26 to 28, the opening and closing levers 26 are rotatably supported around the support shaft 16s of the decompression cap 16, and in the spring force neutral position of Fig. 27, the handle 2 is opened and closed. The pivoting shaft 1 of the pivoting fulcrum of 6 and the elastic pressure of the torsion coil spring 32 are in the same straight line, and the arm length of the pivot 16s of the pivoting fulcrum of the opening and closing hand 26 and the elastic pressure of the torsion coil spring 32 becomes 0' and the torsion coil spring The 32-gun pressure does not act on the opening and closing handles. On the other hand, as shown in Fig. 26, when the opening/closing handle 26 is rotated downward from the neutral position of the spring force shown in the figure, the opening and closing lever is released by the elastic pressure indicated by the hollow arrow of the torsion spring 32. The arm length of the fulcrum 16s of the turning fulcrum of 26 is ul, and the downward pressure of the torsion coil spring 32 acts on the opening and closing handle 26, and the opening chamber is turned to the room by 6 s. 27 The screw is applied by -29- 1354089. The downward pressure is applied by the spring pressure. On the other hand, as shown in Fig. 28, when the opening/closing handle 26 is rotated upward from the neutral position of the spring force shown in Fig. 27, the opening and closing of the elastic pressure indicated by the hollow arrow of the torsion coil spring 32 is released. The arm length of the fulcrum 16s of the rotation fulcrum of the handle 26 becomes U2, and the upward biasing force of the torsion coil spring 32 acts on the opening and closing handle 26, and an upward moment is applied by the elastic pressure.

Here, the 'the spring force of the coil spring 32 to rotate the opening and closing handle 26 upwards' exceeds the weight of the opening and closing handle 26, and the opening and closing handle 26 is used even when the user releases the hand from the opening and closing handle 26. The spring pressure of the coil spring 32 is configured to rotate upward. The handle operating portion 36 (see Fig. 29) of the opening and closing lever 26 has a function of a grip portion when the user operates the opening and closing lever 26, and a function of opening and closing the differential pressure venting valve V. As shown in Fig. 29, the handle operating portion 36 of the opening and closing handle 26 is formed with two side surfaces 35g1, 35g2 of the opening and closing guide 35g of the valve opening and closing member 35 that is rotatably supported by the decompression chamber cover 16. The valve guide recess 30a is guided in the direction in which it extends. Similarly, as shown in Fig. 30, the handle operating portion 36 of the opening and closing lever 26 is formed with a valve guide that guides both side surfaces 35hl and 35h2 of the opening and closing guide 35h of the valve opening and closing member 35 in the extending direction thereof. In the opening and closing operation by the opening and closing of the opening and closing lever 26, the valve opening/closing member 35 is interposed with the opening and closing valve operation of the valve body 35t, thereby preventing the direct cause of the difference. The valve body of the pressure venting valve v is set under the -30-1354089 tree gas to open the closing handle 26 or the fat portion of the decompression chamber cover 16 which occurs when the handle 26 is opened and closed by the hand. The opening and closing operation of the valve body with a dimensional error such as a curve is not good. Fig. 32 is a sectional view taken along line D-D of Fig. 5, and shows a closed valve state of the differential pressure valve V: Fig. 33 is a schematic view showing a cross section taken along line D-D of Fig. 5 showing a state in which the differential pressure vent valve v is closed.

As shown in Fig. 32, when the opening/closing handle 26 is rotated toward the side as shown by the arrow and the state in which the decompression chamber cover 16 is locked is closed, the opening and closing handle 26 can be opened and closed regardless of the dimensional error of the closing handle 26. The body valve opening/closing member 35 interlocks the rotation operation of the opening and closing handle 26, and the differential pressure vent valve V can be closed by the valve body 35t of the valve opening and closing member 35. On the other hand, as shown in Fig. 33, when the opening/closing handle 26 is rotated upward from the locked state of the figure as indicated by the arrow, the size error of the opening and closing handle 26 can be used. The valve opening and closing member 35 that operates integrally with the opening and closing lever 26 interlocks the rotation of the opening and closing handle 26, and the differential pressure valve V can be opened by the valve body 35t of the valve opening and closing member 35. In the case of opening the valve, as shown by the arrow in Fig. 3, it is possible to eliminate the pressure of the outside atmosphere from entering the decompressed decompression chamber 13 due to the pressure difference, and applying it when the decompression chamber cover 16 is opened. The load due to the differential pressure of the decompression chamber cover 16 becomes unnecessary, and the decompression chamber cover can be smoothly opened. 1 <<Retaining mechanism of the opening and closing handle 26>> Fig. 34 shows the opening and closing handle 26 The claw portions 28t - 31 - 1354089 of the support portion 28 are locked to the holding 2 of the handle holding member 37 of the decompression chamber 16 and prevent the opening and closing handle 26 from rotating downward. FIG. 35 shows the opening and closing handle 26 The claw portion of the support portion and the holding projections of the handle holding member 37 of the decompression chamber 16 are stopped, and the right side view of the opening and closing handle 26 is prevented from being rotated downward. As shown in Figs. 34 and 35, the protrusion-shaped handle holding releasing members 39 and 39 are fixed to the peripheral member ^ portion. As shown in Fig. 34, when the decompression chamber cover 16 is separated from the decompression chamber member 14 by a predetermined distance, the both sides of the peripheral member 14 hold the releasing members 39, 39 from the handle 37 of the decompression chamber cover 16. , 37 leaves without pressing the handle holding members 37, 37. In this case, the holding projections 37t, 37t of the members 37, 37 which are biased toward the upper side of the decompression chamber cover 16 are locked to the claw portions 28t, 29t of the open support portions 28, 29, and can prevent the opening φ toward The rotation below the arrow. Then, as shown by the cutout arrow in Fig. 34, the direction in which the pressure reduction I is closed is moved, and as shown in Fig. 35, the outer member 14 of the decompression chamber cover chamber 13 is close to the predetermined distance. The handle holding releasing members 39, 39' of the portion press the handle holding members 37, 37 of 16 and the retaining projections 37t' of the handle holding members 37, 37 of the decompression chamber cover 16 in the direction of the arrow a will be opened and closed from the handle 26. The claws of the support portions 28 and 29 are disengaged, and the opening and closing handles 26 are released. The opening and closing handles 26 are lifted by 3 7t, _ side view; 28t, and the 37t card is released: the side of the commemoration 1 4 is 1 3 The outer periphery of the handle; the retaining member handle holds the closed handle 26. The closing handle 26 g covers the cover 16 from the decompression enclosure member 1 4 to the decompression chamber cover I, and the 37t, 28t, 29t can be freely -32- 1354089 Perform the rotation below the arrow. As a result, the opening and closing lever 26 can be completely rotated downward, and the decompression chamber cover 16 can be brought into close contact with the peripheral member 14. Further, the handle holding members 37 and the support portions 28, 29 and the claw portions 28t, 29t of the opening and closing handle 26 may be placed on only one side without being placed on the left and right sides. << Cover opening and closing guide mechanism of decompression chamber cover 16>>

Next, the opening and closing guide mechanism of the lid of the decompression chamber cover 16 will be described. As shown in Fig. 4 and Fig. 9, the decompression chamber 13 is provided with a decompression chamber cover 16 on the right side thereof, and is opened and closed from the closed state shown in Fig. 9 to the open state shown in Fig. 16. The movable cover opens and closes the guiding mechanism. As shown in FIGS. 4 and 9, the protective plate member 19 attached to the right side portion of the decompression chamber 13 is provided with a cover opening and closing guide hole 42 having a horizontally extending direction from the front toward the inside. a first horizontal guide hole 42a; and a first inclined guide hole 42b extending continuously deeper and lower than the first horizontal guide hole 42a; and extending horizontally deeper inside the first inclined guide hole 42b a second horizontal guide hole 42c; and a second inclined guide hole 42d extending continuously deeper and above the second horizontal guide hole 42c; and extending horizontally deeper inside the second inclined guide hole 42d The third horizontal guide hole 42e. When the decompression chamber cover 16 is closed by the presence of the third horizontal guide hole 42e, the decompression chamber cover 16 is not rotated when it is about to be closed, and can be moved straight to abut against the peripheral member 14 . As shown in Fig. 8, as the opening and closing guide mechanism of the decompression chamber cover 6, -33-1354089 is provided with the table 1 connecting link 43' first connecting link 43, with its central shaft 43 〇, rotating It is freely supported by the guiding member 24. Further, the guide roller 24r' on the inner side of the central axis 430 is guided by the second guide groove 20b shown in Fig. 8 and moved in the front-rear direction. Further, the 'first connecting link 43' is formed with a direction changing projection 43t' having a shape in which the front end of the square end has a curvature and protrudes and extends in a narrow width, and the switching projection 43t is supported from the central axis. The guide roller 431· guided by the opening and closing hole 42 is closed, and one end of the second connecting link 44 is rotatably coupled around the other end of the shaft 43j. As shown in Figs. 8 and 18, the second connecting link 44 has a long dimension in the front-rear direction, and the other end is rotatably supported by the decompression chamber cover 16 by the opening/closing handle 26 rotatably. The support shaft 16s is supported. Further, a V-shaped direction changing guide member 45 as shown in Fig. 8 is fixed to the inner surface of the protective plate member 19 disposed on the right side portion of the decompression chamber 13 shown in Fig. 4, such as As will be described later, the direction changing projection 43t of the first connecting link 43 is guided by the guiding surface 45a of the direction changing guide member 45, and the first connecting link 43 is switched in the front-rear direction. Fig. 36 (a) is a view showing a side view of the lid opening and closing guide mechanism in which the decompression chamber cover 16 is in an upright state when the decompression chamber cover 16 shown in Fig. 9 is closed; Fig. 3 (b) A side view of the cover opening and closing guide mechanism for displaying the state in which the decompression chamber cover 16 is opened and tilted to the maximum. As shown in Fig. 36 (a) and Fig. 36 (b), when the decompression chamber cover 16 is closed, the decompression chamber cover 16 is erected, and the decompression chamber cover 16-34 is opened.

1354089

When the decompression chamber cover 16 is tilted, the 16s (A) point and the shaft 4 3j (B) point of the second connecting link 44 are supported, and the first connecting link 43 is supported. The central axis 43 (C) point and The three points (A) and (B) of the shaft 43j (B) are located substantially in a straight line. Therefore, when the cover force F is applied, the opening and closing force F is not easily applied to the first connecting link 43 due to the rotational torque. » is transmitted straight to the point provided on the guiding member 24, so the guiding member 24 moves horizontally. Therefore, the decompression chamber reaches _ without rotating, and can remain in an upright or inclined state. Further, the opening and closing guide mechanism of the decompression chamber cover 16 is provided only on the right side portion of the pressure chamber 13 and is not provided on the left side portion. Further, the opening and closing guide mechanism of the cover 16 may not be provided. In the right side portion, the left side portion is provided. <<Opening and closing process of the lid opening and closing guide mechanism of the decompression chamber cover 16>> Next, the cover opening and closing guide of the decompression chamber cover 16 having the above configuration is performed. The opening and closing process of the decompression chamber cover 16 will be described. Here, as shown in Fig. 8, Fig. 17, and Fig. 18, the cover 16 is rotated freely. The ground is supported by the support shaft 24 of the guide member 24 and the support shaft 25, and is rotatably supported by the second link 44 by the support shaft 16s. Thus, the decompression chamber cover 16 is guided by When the support shaft of the member 24 and the support shaft 16s of the second connecting link 44 move in the same direction, the horizontal movement can be performed without rotation. The middle of the support shaft is opened and closed, and C) I 16 is flat in the decompression chamber. Placed in the compressor press chamber as well as the ground 2 4s level -35 - 1354089 As shown in Fig. 4, Fig. 8 and Fig. 36 (a), in the state in which the decompression chamber cover 16 is closed, the first connecting link The guide roller 43r of 43 is located at the third horizontal guide hole 42e extending horizontally of the cover opening and closing guide hole 42, and the central shaft 43A of the first joint link 43 is concentric with the guide roller 2 4r of the guide member 24 and is 8 is guided by the second guide groove 20b, and the second connecting link 44 connected to the first connecting link 43 is located at the position shown in the figure"

Next, as shown in Fig. 8, the user holds the handle operating portion 36 of the opening/closing handle 26, and turns the opening and closing handle 26 upward as indicated by an arrow to release the locking of the decompression chamber cover 16 by the opening and closing handle 26. . Then, as shown in FIG. 9, the user holds the handle operation portion 36 of the opening and closing handle 26 (see FIG. 4), and pulls the opening and closing handle 26 toward the front indicated by the arrow (the left side of the paper on the ninth figure). Then, the guide 43r of the first connecting link 43 is guided forward to the horizontally extending third horizontal guide hole 42e of the cover opening and closing guide hole 42, and the central axis 43 of the first connecting link 43 is guided and guided. The guide roller 24r of the member 24 is concentric and is guided by the second guide groove 20b shown in Fig. 8 and moved forward (the left side of the paper surface of Fig. 9), and the first connecting link 43 is not inclined. Move forward (left side of the paper on the 9th drawing). In this case, since the first connecting link 43 moves horizontally forward by the same distance as the guiding members 24 and 25, the first connecting link 43 and the second connecting link connected to the shaft 43j are connected. The rod 44 is moved in the same direction as the first connecting link 43 at equal distances. Therefore, the decompression chamber cover 16 supported by the guide members 24 and 25 and the first connecting link 43 does not rotate, but faces forward (the left side of the paper in Fig. 9 is -36-!354〇89 side), and The guiding members 24 and 25 and the first connecting link 43 move forward in the horizontal direction at equal distances. Thus, in the case where the decompression chamber cover 16 is opened, it is not inclined with the peripheral member 14 of the decompression chamber 13, but will be separated in the horizontal direction by a predetermined distance, whereas "in the case where the decompression chamber cover 16 is closed, It will be inclined with the peripheral member 14 of the decompression chamber 13 and will approach and abut in the horizontal direction.

Therefore, since the spacer 16p of the decompression chamber cover 16 does not incline with the peripheral member 14 and leaves, and does not incline with the peripheral member 14 to come close to the abutment, the pad 16p does not leave. The peripheral member 14 is substantially uniformly abutted, so that the sealing property is high. Further, deterioration of the spacer 16p can be prevented. Next, the user's pull of the opening and closing handle 26 forward (the left side of the paper surface of Fig. 9), as shown in Fig. 10, although the central axis 43 of the first connecting link 43 and the guide member 24 are guided. The roller 24 ι is located concentrically and guided by the second guide groove 2 〇 b shown in Fig. 8 and guided forward (to the left side of the sheet of the first drawing), but the guide roller 4 3 of the first connecting link 43 r is guided forward and downward by the second inclined guide hole 42d that covers the opening and closing hole 42. In this case, as shown in FIG. 10, the guide members 24 and 25 are horizontally moved, but the first connecting link 4 3 is inclined such that the light guide 43 is downward. The shaft 43j to which the link 44 is coupled moves upward. In this way, the decompression chamber cover 16 6 connected to the support shaft 16s by the second connecting link 44 can be moved forward by 0 - 37 - 1354089 while being tilted upward toward the front, and the arrow as shown in FIG. As shown in the figure, when the opening/closing handle 26 is pulled forward (the left side of the paper surface of the first drawing), as shown in Fig. 11, the central axis 43 of the first connecting link 43 is as described above. The second guide groove 20b shown in Fig. 8 is guided and guided forward (the left side of the paper surface of Fig. 11), but the direction changing projection 43t of the first connecting link 43 is guided by the direction changing guide member. The guide roller 43r of the first connecting link 43 is guided by the rear guide 45 of the 45, and is moved in the second horizontal guide hole 42c (refer to Fig. 9) of the cover opening and closing guide hole 42. In the process, the first connecting link 43 tilts the guide roller 43r downward, and the shaft 43j to which the second connecting link 44 is coupled moves upward. In this manner, the decompression chamber cover 16 that is connected to the support shaft 16s by the second connecting link 44 moves forward while being tilted toward the front. Next, as shown by the arrow in Fig. 11, once the opening/closing handle 26 is pulled forward (the left side of the paper surface of Fig. 1), as shown in Fig. 12, the central axis 43 of the first connecting link 43 is shown. 〇, as described above, guided by the second guide groove 20b shown in Fig. 8 and guided forward (to the left of the paper surface of Fig. 12), the direction changing projection 431 of the first connecting link 43 is The guide guide bottom surface 45a2 of the direction switching guide member 45 is guided by the concave guide bottom surface 45a2, and the guide roller 43r of the first connecting link 43 is moved in the second horizontal guide hole 42c of the cover opening and closing guide hole 42, and 1 The link link 43 is in an upright state. In this process, the shaft 43j to which the second connecting link 44 is coupled moves upwards to -38-1354089, and the decompression chamber cover 16' that is coupled to the support shaft 16s by the second connecting link 44 will face upward. The method of tilting moves while moving forward. By tilting the decompression chamber cover 16, the food or the like in the decompression chamber 13 can be easily seen, and the decompression chamber cover 13 can be taken out even if the decompression chamber cover 16 is not completely pulled out. Food, etc. Further, as shown by the arrow of Fig. 12, once the opening/closing handle 26 is pulled forward (the left side of the paper surface of Fig. 12), as shown in Fig. 13, the central axis of the first connecting link 43 is shown. 43〇, as described above, guided by the second guide groove 20b shown in Fig. 8 and guided forward (the left side of the paper surface of Fig. 13), the direction changing projection 431 of the first connecting link 43 will be Guided by the guide front face 4 5 a3 of the direction changing guide member 45, the guide roller 43r of the first connecting link 43 moves in the second horizontal guide hole 42c of the cover opening and closing guide hole 42, and the first link The link 43 is rotated around the direction changing projection 43t to change the direction.

In this process, the shaft 43j to which the second connecting link 44 is connected moves forward, and the decompression chamber cover 16 that is connected to the support shaft 16s by the second connecting link 44 is inclined upward toward the front. Open the side and move forward. Next, as shown by the arrow of Fig. 13, once the opening/closing handle 26 is pulled forward (the left side of the paper surface of Fig. 3), as shown in Fig. 14, the central axis 43 of the first connecting link 43 is shown. 〇, as described above, guided by the second guide groove 20b shown in FIG. 8 and guided forward (the left side of the paper surface of FIG. 14), but the guide roller 431 of the first connecting link 43 moves. The cover-39-43!354〇89 opens and closes the first inclined guide hole 42b of the guide hole 42, and the first link link is further rotated about the direction change projection 4 3 t side. In the process, the shaft 43j to which the second connecting link 44 is connected moves _ upward, and the reduction chamber cover 16 that is connected to the support shaft 16s by the second connecting link 44 is inclined upward toward the front. Rotate and move forward. Further, as shown by the arrow of Fig. 14, once the opening/closing handle 26 is turned forward (the left side of the paper of Fig. 14), as shown in Fig. 15, the central axis of the first connecting link 43 is shown. 43〇, as described above, guided by the second guide groove 20b shown in Fig. 8 and guided forward (the side of the paper surface of Fig. 15), the guide roller 43r of the first connecting link 43 is guided. The guide is moved in the first horizontal guide 42a extending in the horizontal direction of the cover opening and closing guide hole 42, and the first connecting link 43 is rotated to be horizontal and moved forward. In this process, the shaft 4 3 j to which the second connecting link 44 is coupled moves forward, and the reduction chamber cover 16 that is connected to the support shaft 16s by the second connecting link 44 is completely inclined upward. The operation is started when the guide 43r enters the first horizontal guide hole 42a of the cover opening and closing hole 42. Then, after the guide roller 43r of the first connecting link 43 moves to the first horizontal guide hole 42a of the cover opening 42 (see FIG. 9), the first connecting link 43 and the guiding member 24 are waited for When the distance moves forward, the decompression chamber cover 16 moves toward the front (the left side of the paper on the 15th side) in a fully open state. Pull the pressure side to the left and move the hole toward the pressure roller. > Figure -40-

1354089 Next, as indicated by the arrow in Fig. 15, a j is forward (the left side of the paper on the 15th drawing), and there is more. However, the central axis 43 of the first connecting link 43 will be the second guide as shown. The groove 20b is guided and guided toward the front (side), but the guide of the first connecting link 43 is moved in the horizontal side 42a of the cover opening and closing guide hole 42, and the right front side of the decompression chamber 13 is guided. The edge portion 24a of the first guide groove 24a of the member 24 faces forward in a state of being fully opened (the first pressure relief chamber cover 16 is fully opened). The above is the use of the cover opening and closing guide. The opening operation of the mechanism. The decompression chamber cover 16 shown in Fig. 16 is carried out from the process of the decompression chamber cover 16 shown in the full open view. Here, as shown in Fig. 16, in order to consider the refrigeration In the case of the lower portion of the chamber 6 or the like, the space is secured between the bottom surface of the two chambers 13 and the opening and closing handles 26, and the upper end of the decompression chamber cover 6 is formed to close the handle 26 to perform the decompression chamber cover 16 Opening and closing operation| <<locking opening and closing operation of decompression chamber cover 16 >> Next, the opening and closing of the decompression chamber cover 16 is shown in Fig. 37 (a) The opening and closing handle 26 is pulled from the decompression chamber cover 1 i. As shown in Fig. 16, the first horizontal guide that is guided and directed by the left side roller 43 of Fig. 16 of Fig. 8 is shown. The hole roller 21b abuts on the left side of the sheet of the decompression chamber cover 16 which is guided and stops the left side of the decompression chamber cover 16, and is closed to the process of the ninth process. The reverse migration directional pressure chamber 13 is disposed at the point chain. The finger of the decompressor shown by the line can be inserted into the side, and the user can hold it open. To explain. The right side view of the operation of opening the decompression chamber cover 16 by the opening and closing handle 26 in accordance with the opening and closing handle 26 and the closing state of -41 - 1354089; and the drawing (3) to (d) of Fig. 7 The retraction chamber cover 16 is unlocked in a locked state in which the closing handle 26 is opened, and the mechanism of the opening and closing of the opening and closing handle 16 is opened by opening and closing the handle 26 to open the decompression chamber cover 16. Side view. As shown in Fig. 37(a), when the decompression chamber 13 is closed by the decompression chamber cover 16 and the decompression chamber cover 16 is locked by the opening and closing handle 26, the handle 26 is opened and closed, and is placed in the decompression chamber cover 16. Lower part. Opening the decompression chamber cover 16 from the locked state in which the decompression chamber cover 16 is opened and closed according to the opening and closing handle 26, it is necessary to lift the opening and closing handle 26 completely upward to the upper end as indicated by an arrow α1. The lock is released, and as shown by an arrow α2, the opening and closing handle 26 is pulled forward (the left side of the paper surface of Fig. 37(a)). This process is illustrated using Figures 7(b) through (d). As shown in Fig. 37(b), in the locked state in which the decompression chamber cover 16 is opened and closed according to the closing handle 26, the guide roller 28r of the support portion 28 of the opening and closing handle 26 is at the intersection 30a3 (refer to the 21st). Figure) is in contact with and locked to the inner side wall guide 30a of the lid lock guide member 30. In this case, as shown in FIGS. 37(b) and 35, the handle holding releasing members 39'39 of the both side portions of the peripheral member 14 press the handle holding members 37, 37 of the decompression chamber cover 16, and The claw portions 28t, 29t of the support portions 28, 29 of the opening and closing handle 26 are located above, and are separated from the holding projections 37t of the handle holding members 37, 37. From this state, it can be understood that once the opening and closing lever 26 is lifted up as shown in Fig. 3 - 42 - 1354089 (a), the opening and closing lever 26 is rotated to turn the claw portion 28t of the support portion 28, 29 of the opening and closing handle 26. 29t will be located below and located in the vicinity of the holding projection 37t of the handle holding member 37. In this case, as shown in Fig. 28, the opening and closing lever 26' is supported at the raised position by the biasing force of the torsion coil spring 32 which is stronger than the weight of the opening/closing handle 26.

Next, as shown by the cutout arrow in Fig. 37(d), the user's hand pulls the opening and closing handle 26 to the front (the left side of the paper on the side of Fig. 37(d)), and the decompression chamber cover 16 is in an upright state. Moving forward (the left side of the paper surface of Fig. 3(d)), and the handle holding members 37, 37 of the decompression chamber cover 16 are from both sides of the peripheral member 14 on the body side of the decompression chamber cover 16. The handle holding releasing members 39 and 39 of the portion are separated and the engagement with each other is released. Therefore, since the handle holding members 37, 37 of the decompression chamber cover 16 are biased upward by the elastic material such as the torsion coil spring, they are rotated upward, and the handle holding members 37, 37 of the decompression chamber cover 16 are held by the protrusions. ^ 3 7t, 3 7t, the claws 28t, 29t of the support portions 28, 29 of the opening and closing handle 26 are locked, and the rotation of the opening and closing handle 26 is locked downward, so that the opening and closing handle 26 is locked at the upper end position. . Thus, in the state where the opening and closing lever 26 is locked at the upper end position, it is pulled out to the fully open position of the front side (the left side of the paper surface of Fig. 16) as shown in Figs. 9 to 16 . Next, the operation from the state in which the decompression chamber cover 16 is opened to the operation of closing the decompression chamber cover 16 by opening and closing the handle 26 will be described. Fig. 3(a) shows the state in which the decompression chamber cover 16 is opened, -43-1354089, the second cover is closed, and the roll guide is locked by the pre-piece support by the opening and closing handle 26. Right side view of the action of the tight decompression chamber cover 16: Fig. 8 (b) to (d) show the process of locking the decompression chamber cover 16 by the opening and closing handle 26 from the state in which the decompression chamber cover 16 is opened. Side view of the mechanism of movement around the opening and closing handles.

As shown in Fig. 3(a), the opening and closing handle 26' is opened and closed from the decompression chamber 16 as shown by the arrow ' 'back to the rear (the right side of the paper on the 3rd 8th (a)). When the handle 2 is not provided with any mechanism, the opening and closing handle 26 is in the return state as indicated by the dotted arrow. In this case, since the guide rollers 28r and 29r of the support portions 28 29 on both sides of the opening and closing handle 26 do not enter the cover lock guide grooves 30 and 30 in the both side portions, the decompression chamber cannot be closed. Cover 16. Therefore, the opening and closing handle 26 is decompressed while being held at the upper end position of the inside of the cover lock groove members 30, 30 by the guides 28r, 29r of the support portions 28, 29 as indicated by the broken line arrow 2 The manner in which the chamber cover 16 is closed is as follows. As shown in the aforementioned FIG. 37(d), when the decompression chamber cover 16 is separated from the decompression chamber 13 by a predetermined distance, the handle of the decompression chamber cover 16 holds the holding projections 37t, 37t of the 37' 37, and the card is stuck. The claw portions 28t and 29t of the stay portions 28 and 29 of the opening and closing handle 26 are closed, and the opening and closing handle 26 is rotated downward to be locked, and the opening and closing handle 26 is locked at the upper end position. Then, from this position, during the opening and closing operation of the pressure chamber cover 16 of the decompression chamber cover 16 away from the decompression chamber 13, the handle holders 3, 7 and 3 of the decompression chamber cover 16 are separated from the decompression chamber 13 body. The -44 - 1354089 of the side peripheral members 14 are held by the handle holding releasing members 39, 39 on both sides, and therefore are not pressed by the handle holding releasing members 39, 39. Therefore, the holding projections 37t, 3: 7t of the handle holding members 37, 37 of the decompression chamber cover 16 are locked to the claw portions 28t, 29t of the support portions 28, 29 of the opening and closing handle 26, and are locked, and The opening/closing handle 26 is opened and closed by the decompression chamber cover 16 in a state where the upper end position is held. Then, since the decompression chamber cover 16 is opened and the opening and closing handle 26 is held at the upper end position, the decompression chamber cover 16 is closed as indicated by the hollow arrow in Fig. 38(b), so that the pressure is reduced. When the chamber cover 16 is moved rearward (the left side of the paper surface of Fig. 38(b)), the guide rollers 28r, 29r of the support portions 28, 29 of the opening and closing handle 26 enter the lid lock guide members 30, 30. Then, after the guide rollers 28r, 29r of the support portions 28, 29 of the opening and closing handle 26 enter the lid lock guide members 30, 30, as shown in Fig. 38(c), 'because the decompression chamber cover 16 is closed Therefore, once it is closer to the peripheral member 14 of the decompression chamber 13, the handle holding members 37, 37 of the decompression chamber cover 16 are placed on the handle portions on both sides of the peripheral member 14 on the body side of the decompression chamber 13 When the holding releasing members 39, 39 are pressed, the engagement of the holding projections 37t, 37t of the handle holding members 37, 37 of the decompression chamber cover 16 with the claw portions 28t' 29t of the support portions 28, 29 of the opening and closing handle 26 is released. The opening and closing handle 26 is movable up and down. Then, as shown in Fig. 3(d), the user presses the opening and closing handle 26, and the guide rollers 28r, 29r of the support portions 28, 29 of the opening and closing handle 26 are guided by the cover locking guide members 30, 30. And the pressure-reducing -45 - 1354089 chamber cover 16 is pulled in with the opening and closing handle 26, and the decompression chamber cover 16 is locked to the outer member 1 4 β on the main body side of the decompression chamber 13 by pressing the opening and closing handle 26, The left and right sides of the decompression chamber cover 16 are pulled into the peripheral member 14, so that even if the parts of the decompression chamber cover 16 are warped or deformed, the pad can be surely abutted against the peripheral member 14 to ensure good Sealing. Further, the spacer 16p is provided with a recessed portion I6pl. Specifically, the cross section of the spacer 16p has a V-shape (see Figs. 28 and 30), and one of the V-shaped sides is provided in the decompression chamber cover 16. Further, the other side of the V-shape is provided so as to close the opening of the decompression chamber cover 16, and has elasticity so as to be in contact with the opening of the front surface of the outer casing member 1 (refer to Figs. 28 and 29). . Thereby, the gasket 16p' as the sealing member can suppress the gas from entering between the decompression chamber cover 16 and the peripheral member 11. In particular, when the decompression operation is started, the sealing property is more important. More specifically, once a certain degree of decompression is performed, a pressure difference occurs inside and outside the decompression chamber 13. Therefore, the spacer 16p generates a force to be pulled into the front opening side of the outer casing member 11, and the decompression chamber cover 16 and the front opening of the outer casing member 11 are more encrypted, and the sealing property is improved. On the other hand, when the depressurization operation is started, there is no pressure difference between the inside and the outside of the decompression chamber 13, i.e., the spacer 16p does not have a biasing force that is pulled into the front opening side of the outer casing member i i . Therefore, it is necessary to more reliably suppress the gas from entering between the decompression chamber cover 16 and the outer casing member 前 before starting the decompression operation. Therefore, in the present embodiment, the decompression chamber cover 16 and the outer casing member 1 1 are elastically contacted by -46 to 1354089 by providing the V-shaped groove in the spacer 16p. Thereby, when the decompression chamber cover 16 is closed, no gap is generated between the decompression chamber cover 16 and the outer casing member 11. Further, the spacer 16p is soft, and even when it is locked by the handle, by setting it to be pressed only in a range in which the recess is not completely crushed, the force of the locking handle can be prevented from being excessively large. And easy to lock the action. Further, the spacer 16p is provided on the outer side of the outer casing member 11 in the shape of one of the V-shaped members, and has a V-shaped side, and is elastically connected to the decompression chamber cover 16 The configuration of the arrangement can achieve the same operational effects as those of the above embodiment. After the decompression chamber cover 16 is closed, for example, when the user presses an operation switch (not shown) or the refrigerating chamber door 6b is closed and the door switch (not shown) is turned on, etc., the operation of the vacuum pump 12 starts. The air in the decompression chamber 13 is attracted to start decompression. When the decompression is started, the decompression chamber cover 16 is pressed from the outside according to the differential pressure between the atmospheric pressure and the internal low pressure, and the spacer 16p is pressed against the peripheral member 14 by the pressing of the force by the locking force by the handle. The recesses of the spacer 16p are in close contact with each other and become the state shown in Figs. 26 to 32. Due to the large load due to the differential pressure between the atmospheric pressure and the internal low pressure, the spacer 16p is crushed and generated. The larger surface pressure makes the seal better and maintains the internal negative pressure. According to the above configuration, the decompression chamber cover 16 of the decompression chamber 13 is opened while being rotated forward, and the decompression chamber cover 16 of the decompression chamber 13 is closed while being rotated toward the rear side, so that the pressure is reduced. The opening and closing operation of the chamber cover 16 is excellent in operability and is convenient to use. In addition, since the decompression chamber cover 16 can realize the synchronization of the right and left and the opening and closing operation toward the front or the rear, the operation reliability is high. Since the decompression chamber cover 16 is detached or abutted against the peripheral member 14 of the decompression chamber 13, the cushion Ιόρ of the decompression chamber cover 16 is not cleaved, and the wear of the gasket 16 6 is prevented. The sealing is high. << Variation 1 >>

Next, the modification 1 will be described using FIG. Further, Fig. 3 is a perspective view showing the structure of the decompression chamber 13 in the refrigerator of the first modification. In the decompression chamber 13 of the refrigerator of the first modification shown in Fig. 3, the decompression chamber cover 1 provided on the right side portion of the decompression chamber 13 of the embodiment shown in Fig. 3 is not provided. 6th, except for the configuration of the lid opening/closing guide mechanism of the first connecting link 43, the second connecting link 44, and the like that are opened while rotating, the same components are attached, and the same reference numerals are given to the components in the embodiment, and the detailed description is omitted. Description. According to the first modification, since the decompression chamber cover 16 can take the right and left synchronization and open and close the movement to the front or the rear, the operation reliability is high. Further, since the decompression chamber cover 16 abuts or separates from the peripheral member 14 of the decompression chamber 13, the gasket 16p of the decompression chamber cover 16 is not cleaved, and the lining can be prevented. The mat 1 6 ρ is worn and has high sealing properties. Further, in the above-described embodiment, the configuration in which the decompression chamber 13 is provided in the refrigerating chamber 2 is not limited thereto. Even if the decompression chamber 13 is provided in the freezing compartment 4, the same effect as that of the above embodiment can be obtained -48-1354089. At this time, it is also applicable to the case where the decompression chamber door 16 is not inclined. <<Modification2>> Next, a modification 2 will be described using Figs. 40 and 41. Further, Fig. 40 is a plan view of the decompression chamber 13 of Modification 2 as seen from the back side; Fig. 41 is a cross-sectional view of the Η-Η line of Fig. 40.

In the second modification, as shown in FIG. 40 and FIG. 41, the rack gears 124 g and 125 g which are formed horizontally on the guide members 124 and 125 are provided instead of the fourth and eighth figures. In the rack gears of the guide members 24 and 25 of the decompression chamber 13 of the embodiment shown in the figure, an even number of spur gears 71, 72, 73, 74 are provided in the substantially horizontal direction between the rack gears 124g and 125g. . The other components are the same as those in the embodiment, and the same reference numerals are given to the components in the embodiment, and the detailed description thereof will be omitted. According to the second modification, the rack gears 124g and 125g formed horizontally on the guide members 124 and 125 are disposed horizontally, and an even number of spur gears 71 and 7 are disposed between the rack gears 124g and 125g in the substantially horizontal direction. 2, 7 3, 7 4, so the size in the vertical direction can be reduced, and a compact structure can be formed. Further, the effects achieved in the above embodiment can be achieved. Further, in the above-described embodiment, the decompression chamber that sucks the air in the room and decompresses the air is exemplified as the gas adjustment chamber. However, the body adjustment chamber can be widely used in addition to the decompression chamber. Decompression of a process in which a nitrogen storage chamber, an oxygen separation membrane, and a storage chamber for discharging oxygen from a gas regulating chamber are pumped, and a silica gel, zeolite (ze〇iite) -49-1354089 is fully opened Right side view of the room. Fig. 11 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state. Fig. 12 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state. Fig. 13 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state.

Fig. 14 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state. Fig. 15 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state. Fig. 16 is a right side view showing the decompression chamber in the process of bringing the decompression chamber cover of the decompression chamber from the closed state to the fully open state. Figure 17 is a cross-sectional view taken along line F-F of Figure 9. Fig. 18 is a perspective view showing the decompression chamber cover when the decompression chamber cover shown in Fig. 16 is in the fully open state, obliquely from the rear. Figure 19 is a view showing that the decompression chamber cover is opened by the decompression chamber cover of the decompression chamber shown in Fig. 9, the support portion of the opening and closing handle, and the opening and closing handle around the lid lock guide member. schematic diagram. Fig. 20 is a view showing a state in which the decompression chamber cover of the decompression chamber shown in Fig. 9, the support portion of the opening and closing handle, and the periphery of the lid lock guide member are located before the lock. Fig. 21 is a view showing the decompression chamber cover by the decompression chamber cover of the decompression chamber shown in Fig. 9, the support portion of the opening and closing handle, and the opening and closing hand-51 - 1354089 shank around the lid lock guide member. Schematic diagram of the locked state. Fig. 22 is a schematic view showing the decompression chamber cover of the decompression chamber shown in Fig. 9 of the modification, the support portion of the opening and closing handle, and the lock around the lid lock guide member. Fig. 23 is a view showing a state in which the decompression chamber cover of the decompression chamber shown in Fig. 9 of the modification, the support portion of the opening and closing handle, and the periphery of the lid lock guide member are in a state before being locked.

Fig. 24 is a view showing a state in which the decompression chamber cover of the decompression chamber shown in Fig. 9 of the modification, the support portion of the opening and closing handle, and the periphery of the lid lock guide member are in a locked state. Figure 25 shows the F-F line profile of the decompression chamber cover shown in Figure 5

Fig. 26 is a view showing the GG line of the decompression chamber cover shown in Fig. 5 of the operation of the torsion coil spring when the opening and closing handle is rotated downward and the decompression chamber cover is brought close to the closed state with respect to the decompression chamber cover. Profile view.

Fig. 27 is a cross-sectional view taken along line G-G of Fig. 5 when the opening and closing handle is rotated with respect to the decompression chamber cover, and the elastic pressure of the torsion coil spring is at the neutral position. Fig. 28 is a G-G line cross-sectional view showing the decompression chamber cover of Fig. 5 in the operation of the torsion coil spring when the opening and closing handle is turned upward with respect to the decompression chamber cover. Fig. 29 is a perspective view showing the decompression chamber cover in which the decompression chamber cover of Fig. 5 is cut by the H-H line cross section. Fig. 30 is a perspective view showing the decompression chamber cover 16 in which the decompression chamber cover -52 - 1354089 16 of Fig. 5 is cut by the I-Ι line cross section. Fig. 3 is a perspective view showing the decompression chamber cover 16 in which the decompression chamber cover 16 of Fig. 5 is cut by a D-D line cross section. Fig. 32 is a cross-sectional view taken along the line D-D showing the valve closing state of the differential vent valve of Fig. 5. Fig. 3 is a schematic view corresponding to a cross section taken along the line D-D of Fig. 5 showing the closed valve state of the differential pressure vent valve V.

Fig. 34 is a view showing the right side view of the claw portion of the support portion of the opening and closing handle, the retaining projection of the handle holding member of the pressure reducing chamber cover, and the state in which the opening and closing handle is prevented from rotating downward. Fig. 35 is a view showing the right side view of the claw portion of the support portion of the opening and closing handle, releasing the engagement of the holding projection with the handle holding member of the pressure reducing chamber cover, and releasing the blocking of the opening and closing of the handle downward. Fig. 3(a) shows a side view of the cover opening and closing guide mechanism in which the decompression chamber cover is in an upright state when the decompression chamber cover shown in Fig. 9 is closed; (b) the pressure is reduced for display. A side view of the cover opening and closing guide mechanism in which the cover is opened and the state of being tilted to the maximum. Fig. 3(a) is a right side view showing the operation of releasing the lock from the lock state of the decompression chamber cover according to the opening and closing handle, and opening the decompression chamber cover by the opening and closing handle; (b) to (d) The side view of the mechanism transition from the opening and closing handles of the operation of opening and closing the opening of the decompression chamber cover by the opening and closing handle is released. Fig. 3(a) is a right side view showing the action of closing the decompression chamber cover by opening and closing the handle from the state in which the cover of the decompression chamber is opened; (b) to (d) -53 - 1354089 A view of the migrating side of the opening and closing handle during the process of closing the decompression chamber cover by the opening and closing handle. Fig. 39 is a perspective view showing the structure of a decompression chamber in the refrigerator of Modification 1. Fig. 40 is a plan view showing the decompression chamber of Modification 2 from the back side. Figure 41 is a cross-sectional view taken along line H-H of Figure 40.

[Description of main components] 1 : Refrigerator 13 : Decompression chamber 16 : Decompression chamber cover (storage chamber, gas adjustment chamber) 16p : Liner (sealing member) 20b : 2nd guide groove (2nd groove) 21a 21b: guide roller (first guide roller) 22a, 22b: pinion gear (moving means) 23: rotation synchronizing shaft (moving means) 24, 25: guiding member (moving means) 24a ' 25a : 1st guide groove ( First groove) 24g, 25g: rack gear (moving means) 24r: guide roller (second guide roller) 24s: support shaft (support portion) 28r, 29r: guide roller (third engagement portion) 30: guide Roller (second engaging portion) 42 : cover opening and closing guide hole (link mechanism, third groove) -54 - 1354089 43: first connecting link (link mechanism) 44 : second connecting link (link Mechanism) 45: Direction change guide member (link mechanism)

-55-

Claims (1)

1354089 X. Patent Application No. 1. A refrigerator comprising: a z storage compartment having an opening for taking out a storage object; and a cover member opening and closing an opening of the storage compartment; and decompression Means, the pressure of the storage chamber is set to be lower than atmospheric pressure; and a reinforcing support portion provided in the opening portion of the cover member for supporting the storage chamber; and a sealing member disposed between the cover member and the opening portion abutting the cover member for The movement of the gas from the cover member and the opening portion is suppressed. 2. A refrigerator according to the present invention, comprising: a storage chamber having a box shape, wherein the opening portion has a shape in which a left-right direction is longer than a vertical direction; and a cover member that opens and closes an opening of the storage chamber And a pressure reducing means for setting the pressure of the storage chamber to be lower than atmospheric pressure; and a reinforcing support portion provided in the vicinity of the center of the cover member for supporting the opening portion of the storage chamber; and a sealing member The cover member is disposed between the cover member and the opening portion that the cover member abuts to suppress movement of gas between the cover member and the opening portion. The refrigerator according to claim 1 or 2, wherein the reinforcing support portion has a concave portion that retreats toward a back surface of the cover member, and is on both sides of the concave portion. There is a convex portion that is raised toward the front surface of the cover member. 4. The refrigerator according to claim 1 or 2, wherein a glass member is provided on an upper portion of the storage chamber, and the glass member is supported by the reinforcing support portion. 5. The refrigerator according to claim 1 or 2, wherein a metal plate member including a bottom wall, a side wall, and a rear wall is provided inside the storage chamber, and the bottom wall of the plate member is Supported by the aforementioned reinforcing support portion. The refrigerator according to the first or second aspect of the invention, wherein the sealing member has an elastic body having a V-shaped cross section. The refrigerator according to claim 6, wherein the refrigerator has a moving means provided in the storage chamber for moving the cover member away from the opening, and the cover member is moved by the moving means When moving toward the opening of the storage chamber, the V-shaped portion of the sealing member is provided to be narrowed between the cover member and the opening. 8. The refrigerator according to claim 1 or 2, wherein the sealing member is provided on the cover member and is provided outside the reinforcing support portion. -57-