JP5643447B1 - Cold air shut-off device for refrigerator - Google Patents

Abstract

[PROBLEMS] To provide a simple-shaped refrigerator capable of reliably shutting off the cold air in each refrigerator storage room in the refrigerator, allowing goods to be taken in and out using both hands, and being retrofitted to a new or in-use refrigerator. To provide a cold air shut-off device. The insertion holding block constituting the present invention is formed by integrally molding a synthetic resin material or natural rubber having elasticity and flexibility, and has an upper portion which is in contact with a locking notch portion of a flip-up turning door. A lock mount part that is locked in contact is formed, a rotation shaft hole in which the rotation shaft part of the flip-up rotary door is fitted is formed in the center part, and the flip-up rotary door is rearward in the inner direction. The stopper convex part which restricts inclining is projected, and the downward part depth direction is formed by forming the insertion sandwiching part into which the shelf board is inserted. Is provided with a locking notch for locking the locking mount, and at the lower end of the flat plate, the center of the pivot shaft is shifted from the back of the flat plate forward by the thickness of the flat plate. take. [Selection] Figure 1

Description

  The present invention reliably shuts off the cold air for each refrigerated storage room in the refrigerator, enables the use of both hands to put in and out the goods, and has a simple shape that can be retrofitted to a new or in-use refrigerator. The present invention relates to a cold air shutoff device for a refrigerator.

  Out of the power consumed by electrical appliances used in ordinary households, the percentage of standby power consumption with the outlets left open is about 6% of the total, and that percentage is the amount of power consumed by one household. If applied to the above, the total amount of standby power consumption is estimated to be 285 kwh per year, and if calculated at 22 yen per 1 kwh of power, it is estimated that an electricity bill of 6.270 yen per year will be charged. Refrigerators consume the most power during standby, accounting for about 14.2% of the total consumption, and when converted to annual electricity bills, the amount is about 886 yen. As a power-saving measure that can be performed in the refrigerator, the frequency of opening and closing the doors is reduced, the necessary items are quickly taken, the refrigerator is not overfilled with unnecessary items, and the refrigerator temperature is set according to the season. By taking measures such as adjusting frequently, it is possible to reduce the amount of standby power consumption, but it is difficult to practice the behavior habitually in daily life, and consumer needs are those It was hoped that the energy-saving function of the product was provided as a product specification for the refrigerator.

  However, as a manufacturer, installing such energy-saving functions as standard equipment would result in huge R & D costs and a rise in product prices, and so far sales of refrigerators with full-fledged cold air shut-off functions have been realized. It never happened. Therefore, by installing a simple and light-weight energy-saving measure device, if a certain energy-saving effect can be obtained, it will be a benefit for both consumers and manufacturers, so the cold air in the refrigerator has conventionally flowed out to the outside. Various cool air shut-off devices, such as a curtain system, a side-open door system, a shutter system, and a slide storage system, have been proposed and are well-known technologies.

  For example, with respect to the above-mentioned curtain type warming-up type, the upper part of the curtain is suspended and attached, so that the curtain itself swings and is difficult to take out. There is a problem that the cold air blocking effect is reduced, and for the slide type, the half of the refrigerator opening / closing surface is closed, and the trouble of opening and closing the rotating door when removing it remains There was something.

  In addition, for the side open door system, the means for attaching the open door is attached to the inner wall surface of the refrigerator, which leads to the procurement of parts and the installation work cost during manufacturing, and the open / close area requires the width dimension of the refrigerator. There was a problem that it was difficult to secure space.

  In addition, the shutter system has a problem that the operating door has a flexible shutter structure, which leads to an increase in parts cost and a complicated mounting structure.

  In addition, the slide storage system has a problem that it leads to an increase in the cost of the parts and at the same time the attachment means is attached to the inner wall surface of the refrigerator, so that the structure of the parts becomes complicated and the manufacturing and work costs increase. there were.

  Therefore, proposals have conventionally been made to solve the above problems. For example, a resin film is bonded to the front frame of the refrigerator main body, and a takeout port is provided for each shelf plate in the resin film, and a lid is attached to the takeout port so that objects can be taken in and out from the takeout port. An "energy-saving screen for refrigerators" (see Patent Document 1) has been proposed.

  However, since the above proposal selects the means for adhering the resin film to the front frame of the refrigerator main body, the aging adhesive effect at low temperatures is questioned, and the resin film is attached to the front frame of the refrigerator main body. However, the mounting work in the manufacturing stage is expected to be difficult, and the problems of usability in the use stage, maintenance of resin film maintenance, repair and maintenance remain.

  In addition, in a sheet-like cold air blocking curtain provided with one or a plurality of open / close windows with lids, tapes that reinforce the flexibility of the curtains are attached to the left and right sides of the open / close windows at intervals of several centimeters. Etc. ”(refer to Patent Document 2).

  However, the above proposal adopts a method of suspending the cold air blocking curtain with a tension rod, so that the mounting state is unstable, and when the opening / closing window is opened, the opening / closing door itself must be held with one hand. Because there is a problem that it is not possible to put in and out items with both hands, and it is necessary to match the interval between the refrigerator shelf and the opening and closing window of the cool air shut-off curtain, it is provided as a cool air shut-off curtain dedicated to that refrigerator There is no problem, but there is a problem that the manufacturer cannot sell as a different retrofit product.

  In addition, a “refrigerator with a cold air outflow prevention door” (see Patent Document 3) has been proposed which has a structure in which the outflow of cold air in the cabinet is kept to a minimum even when the front door is opened, and the temperature in the cabinet does not rise.

  However, since the above proposal cannot be attached to the uppermost shelf in the refrigerator, it cannot prevent the cold air from flowing out of the uppermost refrigerated storage room. Since it must be held and held with one hand, it is impossible to take in and out the goods with both hands, and there is a problem that the cooling shut-off effect may be reduced because the part corresponding to the handle is a triangular gap, or a retrofit When doing so, there has been a problem that a strut rod has to be straddled for each stage, which obstructs the removal.

  The cold air shut-off device for refrigerator that blocks out the cold air in the refrigerator as described above has a structure that can reliably block the cold air for each refrigerated storage room, a structure that can be easily attached with the cold air shut-off device, It can satisfy consumer needs such as a structure in which goods can be taken in and out with both hands, a structure with low manufacturing costs, a structure in which the device itself is small and light, and a structure that can be retrofitted to a refrigerator that is currently in use. It was not a thing.

  The applicant of the present invention has the structure described above and a structure in which a pivot door that pivots upward is sandwiched between shelf plates that partition the refrigerator storage room of the refrigerator, and the cool air in the refrigerator is individually blocked to prevent outflow of the cool air. Focusing on the current situation where a cold air shut-off device for refrigerators has not yet been proposed, each refrigerator storage room in the refrigerator is designed to solve these problems at once using simple accessories. Developed a cool air shut-off device for refrigerators with a simple shape that can shut off cold air of the refrigerator and insert and remove items using both hands, and can be retrofitted to new and used refrigerators. This leads to the proposal of the “refrigerating device for cold air for refrigerators”.

Published Utility Model No.57-153987 Japanese Patent Laid-Open No. 58-80481 JP 2000-274929 A

  In view of the above problems, the present invention reliably shuts off the cold air in each refrigerated storage room in the refrigerator, enables the use of both hands to put in and out the goods, and is retrofitted to new and in-use refrigerators. An object of the present invention is to provide a cold air shutoff device for a refrigerator with a simple shape.

The cold air shutoff device for a refrigerator according to the present invention is made to achieve the above-mentioned object, and is composed of a symmetrical insertion pinch block and a flip-up turning door, and is mounted on the front surface of the refrigerator shelf. A cold air shut-off device for a refrigerator, wherein the insertion clamping block is integrally formed of a synthetic resin material or natural rubber having elasticity and flexibility, and an upper portion is provided with a locking notch for the flip-up turning door. A locking mount portion is formed to be in contact with the locking portion, a rotation shaft hole in which the rotation shaft portion of the flip-up rotation door is fitted is formed in the center portion, and the flip-up direction is formed in the inner direction. A stopper convex portion that restricts the tilting of the revolving door is projected, and an insertion clamping portion into which the shelf plate is inserted is formed in the depth direction of the lower portion, and the flip-up revolving door is rectangular. said locking mount the lower part on both sides of the flat plate Parts with the provision of the locking notch to be engaged, the lower end of the plate take means provided the central portion of the rotary shaft portion is shifted from the back of the plate in the thickness dimension of the front of the plate.

Moreover, the cold air shutoff device for a refrigerator of the present invention is a refrigerator for a refrigerator which is composed of the symmetrical insertion plug block, the flip-up pivot door, and the hanging pivot door and is mounted on the front surface of the refrigerator shelf. In the cool air shut-off device, the flip-up turning door is provided with a locking notch portion for locking the locking mount portion on both sides of the lower portion of the rectangular flat plate, and at the lower end of the flat plate. The center part of the moving shaft part is provided by being shifted forward from the back surface of the flat plate by the thickness dimension of the flat plate, and further, a rotating recess is formed at the center of both ends of the rotating shaft part. of the upper portion of the plate provided with the engaging notch to be engaged in contact with the engaging mount portion of the insert clamping block comprises forming a pivot protrusion on the inside of the both ends, Kai flipped the A means for rotating by inserting the rotating convex portion of the hanging rotating door into the rotating concave portion of the moving door is adopted.

  The cold air shutoff device for a refrigerator of the present invention employs a means in which the symmetrical insertion plug blocks are connected to both ends of an attachment stay forming the insertion clamp portion and integrally formed.

  Moreover, the cold air shut-off device for a refrigerator of the present invention employs a means in which the symmetrical insertion plug block, in which the lower portion of the insertion clamp is omitted, is connected to the front surface of the refrigerator shelf and integrally formed.

  According to the cold air shut-off device for a refrigerator of the present invention, the refrigerated storage chamber for each shelf in the refrigerator can be effectively closed by turning up the turning door and the hanging turning door. An excellent effect is obtained such that a cold air blocking effect is obtained.

  Further, according to the cold air shutoff device for a refrigerator of the present invention, since it is composed of a detachable inserting and holding block, a flip-up turning door, and a hanging turning door, they can be easily mounted on a shelf board and in use. It has an excellent effect that the revolving door can be opened and closed with one touch.

  Further, according to the cold air shutoff device for a refrigerator of the present invention, since the shutoff of the cold air in all the refrigerated storage rooms can be operated with a pivoting pivot door, the opening / closing operation is simple and the pivot door is opened. Since it has a function capable of being locked, it has an excellent effect that it is possible to easily take in and out the goods with both hands.

  Further, according to the cold air shut-off device for a refrigerator of the present invention, the device itself is manufactured in a small size and light weight, thereby producing an excellent effect that the manufacturing cost can be reduced.

  Further, according to the cold air shutoff device for a refrigerator of the present invention, a symmetrical insertion pin block is connected to both ends of the mounting stay forming the insertion pinching portion and integrally formed, thereby reducing the number of parts and the manufacturing cost. As a result, it is possible to achieve an excellent effect that the locking door locking effect is reliably executed.

  By connecting and integrally forming a symmetrical insertion and holding block with the insertion and holding part omitted from the front of the shelf plate of the refrigerator, the number of parts can be reduced and the manufacturing cost can be reduced. There is an excellent effect that the stopping effect is surely executed.

  Further, according to the cold air shutoff device for a refrigerator of the present invention, since it can be manufactured and sold as a single product, it has an excellent effect that it can be attached to a new or used refrigerator afterwards.

It is a disassembled perspective view which shows embodiment of Claim 1 in the cold air | blocking apparatus for refrigerators of this invention. Example 1 It is a whole perspective view which shows embodiment of Claim 1 in the cold air | blocking apparatus for refrigerators of this invention. It is a disassembled perspective view which shows embodiment of Claim 2 in the cold air | blocking apparatus for refrigerators of this invention. (Example 2) It is a whole perspective view which shows embodiment of Claim 2 in the cold air | blocking apparatus for refrigerators of this invention. It is typical explanatory drawing which shows the installation state of the flip-up rotation door in the cold air | blocking apparatus for refrigerators of this invention. It is typical explanatory drawing which shows the open / close state of the flip-up rotation door in the cold air | blocking apparatus for refrigerators of this invention. It is typical explanatory drawing which shows the opening-and-closing state of the lowest stage of the flip-up rotation door in the cold air | blocking apparatus for refrigerators of this invention. It is typical explanatory drawing which shows the open / close state of the lowest step of the drooping rotation door in the cold air | blocking apparatus for refrigerators of this invention. It is a whole perspective view which shows embodiment of Claim 3 in the cold air | blocking apparatus for refrigerators of this invention. (Example 3) It is a whole perspective view which shows embodiment of Claim 4 in the cold air | blocking apparatus for refrigerators of this invention. Example 4

The refrigerator cool air shut-off device 10 according to the present invention includes a symmetrical insertion and holding block 20 and a flip-up pivot door 30 and is mounted on the front surface of the shelf 50 of the refrigerator R. a is, bayonet clamping block 20 is formed are integrally molded of a synthetic resin material or natural rubber having elasticity and flexibility, contact with the engaging notch 34 of the rotary door 30 splashed to the upper portion A locking mount portion 21 to be locked is formed, a rotation shaft hole 23 into which the rotation shaft portion 31 of the flip-up rotary door 30 is fitted is formed in the center portion, and the flip-up rotary door is formed in the inner direction. The stopper convex part 25 which restricts that 30 inclines back is protrudingly provided, and the insertion pinching part 24 in which the shelf board 50 is inserted is formed in the lower part depth direction, and the flip-up turning door 30 is rectangular. locking Mau the lower part on both sides of the flat plate The locking notch 34 of the isolation portions 21 are engaged with providing the means provided by shifting the center of the rotation axis portion 31 in the thickness dimension of the front of the plate from the back of the plate in the lower end of the plate The biggest feature is that it was taken. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The cold air shut-off device 10 for a refrigerator according to the present invention is not limited to the embodiments described below, but is within the scope of the technical idea of the present invention, that is, within the range of the shape and size capable of exhibiting the same effect. Can be changed as appropriate.

FIG. 1 is an exploded perspective view showing an embodiment of claim 1 in the refrigerator cool air shut-off device of the present invention, and FIG. 2 shows an embodiment of claim 1 in the refrigerator cool air shut-off device of the present invention. It is a whole perspective view.
The refrigerator cool air shut-off device 10 according to the present invention is composed of an extremely small number of parts such as a symmetrical insertion and holding block 20 and a flip-up turning door 30, and is installed in the front of the shelf 50 of the refrigerator R. The cold air blockage for each refrigerated storage room H is performed.

  The insertion sandwiching block 20 forms a locking mount portion 21 that is locked in contact with the locking notch 34 of the flip-up rotary door 30 at the upper portion, and the rotation of the flip-up rotary door 30 at the center portion. A rotation shaft hole 23 into which the dynamic shaft portion 31 is fitted is formed, and a stopper convex portion 25 is provided in the inner direction so as to restrict the flip-up rotation door 30 from being inclined rearward. The insertion and holding portion 24 into which the shelf board 50 is inserted is formed, and is formed of a synthetic resin material or natural rubber having elasticity and flexibility. Further, the whole is made of a hard resin material, and the lock mount portion 21, the lock inner wall portion 22a and the lock outer wall portion 22b are fitted or formed into a sheet shape, and a synthetic resin material or natural rubber having elasticity and flexibility. May be formed.

  The locking mount portion 21 is formed in a semicircular shape above the insertion sandwiching block 20, and is a portion where the locking notch horizontal portion 34 a of the flip-up turning door 30 that is flipped up comes into contact with and is locked. .

  The locking inner wall portion 22a is formed in a tapered shape with a thin front at the inner side of the insertion sandwiching block 20, and the locking notch vertical portion 34b of the flip-up turning door 30 that is flipped up is brought into contact and locked. This is supplementarily used as a means for obtaining the same locking effect as when the locking mount portion 21 is used.

The flip-up turning door 30 is provided with a locking notch 34 for locking the locking mount 20 on both sides of the lower part of the rectangular flat plate, and the center of the rotary shaft 31 at the lower end of the flat plate. parts of a transparent rotating doors made of synthetic resin flip-up provided by shifting the thickness dimension of the front of the plate from the back of the plate, by Rukoto splashed upward upon cooling, locking notch 34 together are reliably engaged in contact with the engaging mount portion 21 of the insert clamping block 20, by the natural hanging state with its own weight at the time of loading and unloading, Ru can be easily out of the goods with both hands It is formed into a shape.

  The locking notch 34 is formed of a locking notch horizontal part 34a and a locking notch vertical part 34b on both sides of the lower end of the flip-up turning door 30, and the locking notch horizontal part 34a is an insertion clamping block. This is the place where the 20 locking mounts 21 come into contact and are locked.

  When the locking mount portion 21 is used, the locking notch vertical portion 34b is a portion where the locking inner wall portion 22a of the insertion clamping block 20 formed in a tapered shape with a thin front is abutted and locked. It is used as a means for obtaining the same locking effect.

  The shelf board 50 is formed in the rectangular flat plate shape mounted in the shelf stage T provided in the inner wall of the refrigerator R, and utilizes the shelf board manufactured by a manufacturer.

  Unlike the conventional complex and large-sized cold air shut-off device, the refrigerator cold air shut-off device 10 configured as described above is a small and lightweight cold air shut-off device. It can also be sold alone.

  Further, since the cold air shutoff device 10 for the refrigerator of the present invention cannot be attached to the uppermost shelf T in the refrigerator R in the attaching means, the uppermost refrigerated storage room H cannot be reliably shut off of cold air. When opening the window, the open / closed state must be held with one hand, so it is not possible to insert or remove items with both hands, and the cooling cut-off effect is reduced because the part corresponding to the handle is a triangular gap In the case of retrofitting, it is necessary to straddle a strut bar for each stage, and the problem of obstructing the removal is solved. The “refrigerator with a cold air outflow prevention door” described in the above (refer to Patent Document 3) is common in that a means for shutting off the cold air is used for each refrigerated storage room T, but it is remarkable in its function and effect. With there is a difference, it has adopted a completely different way also in the solution.

FIG. 3 is an exploded perspective view showing the embodiment of claim 2 in the refrigerator cool air shut-off device of the present invention, and FIG. 4 shows the embodiment of claim 2 in the refrigerator cool air shut-off device of the present invention. It is a whole perspective view.
The cold air shut-off device 10 for a refrigerator of the present invention is composed of an extremely small number of parts including a symmetrical insertion and holding block 20, a flip-up turning door 30, and a hanging turning door 40. Cold air shut-off of the refrigerated storage chamber H in the refrigerator R to be mounted can be performed simultaneously in two stages, upper and lower.

  The insertion sandwiching block 20 forms a locking mount portion 21 that is locked in contact with the locking notch 34 of the flip-up rotary door 30 at the upper portion, and the rotation of the flip-up rotary door 30 at the center portion. A rotation shaft hole 23 into which the dynamic shaft portion 31 is fitted is formed, and a stopper convex portion 25 is provided in the inner direction so as to restrict the flip-up rotation door 30 from being inclined rearward. The insertion sandwiching portion 24 into which the shelf board 50 of the refrigerator R is inserted is formed, and is formed of a synthetic resin material or natural rubber having elasticity and flexibility. Further, the whole is made of a hard resin material, and the lock mount portion 21, the lock inner wall portion 22a and the lock outer wall portion 22b are fitted or formed into a sheet shape, and a synthetic resin material or natural rubber having elasticity and flexibility. May be formed.

  The locking mount portion 21 is formed in a semicircular shape above the insertion sandwiching block 20, and is a portion where the locking notch horizontal portion 43 a of the suspended rotating door 40 that is flipped up is brought into contact with and locked.

  The locking outer wall portion 22b is formed in a tapered shape with a thin front at the inside of the insertion sandwiching block 20, and the locking notch vertical portion 43b of the suspended rotary door 40 that is flipped up is brought into contact with and locked. In some places, it is used as an auxiliary means for obtaining the same locking effect as when the locking mount portion 21 is used.

The flip-up turning door 30 is provided with a locking notch 34 for locking the locking mount 20 on both sides of the lower part of the rectangular flat plate, and the center of the rotary shaft 31 at the lower end of the flat plate. The part is shifted from the back of the flat plate to the front by the thickness dimension of the flat plate, and further, the rotating shaft portion 31 is formed with a rotating recess 32 at the center of both ends. a door, at the time of cooling by Rukoto splashed upward, the engaging notch 34 is reliably engaged in contact with the engaging mount portion 21 of the insert clamping block 20, the time out with its own weight by a naturally drooping state, out of the goods with both hands is formed easily Ru shape.

Droop Kaidotobira 40, the locking notch 43 to be engaged in contact with the engaging mount portion 21 of the insert clamping block 20 provided on the upper portion of the rectangular plate, pivot protrusion on the inside of the both ends 41 is formed, and the rotary convex part 41 of the hanging rotary door 40 is fitted into the rotary concave part 32 of the flip-up rotary door 30 and is rotated to bring the hanging rotary door 40 into a hanging state. In addition, the uneven | corrugated shape of the rotation recessed part 32 of the flip-up rotation door 30 and the rotation convex part 41 of the hanging rotation door 40 can also be formed with a mutually reverse shape.

  The locking notch 43 is formed of a locking notch horizontal portion 43 a and a locking notch vertical portion 43 b on the inner side of the upper end of the hanging rotation door 40, and the locking notch horizontal portion 43 a is formed by the insertion clamping block 20. This is the place where the locking mount portion 21 abuts and is locked.

  When the locking mount portion 21 is used, the locking notch vertical portion 43b is a portion where the locking outer wall portion 22b of the insertion clamping block 20 formed in a tapered shape with a thin front is abutted and locked. It is used as a means for obtaining the same locking effect.

  The cold air shut-off device 10 for a refrigerator configured as described above is a small and lightweight cold air shut-off device, unlike a conventional complicated and large cold air shut-off device, so that it is a stand-alone energy-saving measure product as a manufacturer standard part. Can also be sold at.

FIG. 5 is a schematic explanatory view showing an installation state of the flip-up turning door in the refrigerator cool air shut-off device of the present invention.
The illustration shows an example in which the refrigerator R having four shelves T and five refrigerated storage rooms H is mounted on the refrigerator R. The top shelf and the middle shelf T of the refrigerator R are for the refrigerator according to claim 1. The cool air shut-off device 10 is placed, and the cooler air shut-off device 10 for refrigerators according to claim 2 is placed on the lowest shelf T, and is stored in the refrigerated storage rooms H of all the stages. The items can be put in and out by the flip-up turning door 30 and the hanging turning door 40 with one touch.

  The cold air shut-off device 10 for a refrigerator according to the present invention configured as described above is provided by mounting the flip-up turning door 30 and the hanging turning door 40 in any combination according to the number of shelves T of the refrigerator R. Cold air is shut off for each refrigerated storage room H of R.

FIG. 6 is a schematic explanatory view showing an open / closed state of the flip-up turning door in the refrigerator cool air shut-off device of the present invention.
FIG. 6 (a) shows a state in which the cold air shut-off device 10 for the refrigerator is placed on the uppermost stage and the middle shelf T of the refrigerator R. The front side of the refrigerated storage room H of the upper shelf T is cut off. The lower flip-up turning door 30 is not limited to the lower part of the upper flip-up turning door 30, and the gap is made as small as possible to block cold air for each refrigerated storage room H of the refrigerator R.

  FIG. 6B shows a state when the items in the upper refrigerated storage room H are taken out, and the upper end of the flip-up rotary door 30 is lightly raised with a finger toward the front, thereby The locking notch horizontal portion 34a is released from the engagement state of the locking mount portion 21 of the insertion clamping block 20 and is naturally suspended downward.

  The cold air shut-off device 10 for a refrigerator configured as described above aims to block the cold air for each of the refrigerator storage chambers H at the uppermost stage and the middle stage of the refrigerator R by the flip-up turning door 30 and slightly put a finger on the flip-up turning door 30. You can open and close the revolving door and put in and out the goods with just one touch.

FIG. 7 is a schematic explanatory view showing the open / close state of the lowest stage of the flip-up turning door in the cold air shutoff device for a refrigerator of the present invention.
The refrigerator cold air shutoff device 10 of the present invention shows a state where it is placed on the bottom shelf T of the refrigerator R. When opening the upper flip-up turning door 30, the lower refrigerator storage is shown. It will be in the state which overlaps with the drooping rotation door 40 which interrupts | blocks the front of the room H. FIG.

FIG. 8 is a schematic explanatory view showing the open / close state of the lowermost stage of the hanging rotary door in the cold air shutoff device for a refrigerator of the present invention.
The refrigerator cold air shut-off device 10 of the present invention shows a state where it is placed on the lowest shelf T of the refrigerator R, and when the lowermost pivot door 40 is opened, the upper refrigerated storage is shown. It is used in a state where it overlaps with the flip-up pivot door 30 that blocks the front of the chamber H. Then, droop Kaidotobira 40, along with closing the front of the upper refrigerated storage chamber H, droop been suspended Kaidotobira 40 Ru are used in the structure for blocking the front of the lowermost refrigerating storage chamber H.
In addition, the hanging pivot door 40 that is pivoted upward at the time of removal is brought into a state of being securely abutted and latched by the latch mount portion 21 of the inserting and holding block 20, and is rotated at the lower end of the flat plate. The center part of the moving shaft part 31 is provided so as to be shifted forward from the back surface of the flat plate by the thickness of the flat plate, so that the lower pivoting door as shown in FIG. 8B and FIG. The flip-up turning door 30 can be opened and closed without overlapping with 40.

FIG. 9 is an overall perspective view showing an embodiment of claim 3 in the cold air shutoff device for a refrigerator of the present invention.
A symmetrical insertion and holding block 20 is connected and integrally formed at both ends of the mounting stay 26 forming the insertion and holding portion 24, thereby reducing the number of parts and reducing the manufacturing cost. Since the gap is completely fixed, the locking effect of the insertion clamping block 20 is reliably executed.

FIG. 10: is a whole perspective view which shows embodiment of Claim 4 in the cold air | blocking apparatus for refrigerators of this invention.
By connecting and integrally forming a symmetrical insertion / holding block 20 in which the lower portion of the insertion / holding portion is omitted on the front surface of the shelf plate 50 of the refrigerator R, the number of parts is further reduced and the manufacturing cost is reduced, and the left / right symmetry is achieved. Since the space between the insertion and holding blocks 20 is completely fixed, the locking effect of the insertion and holding blocks 20 is reliably executed. In addition, the locking capability can be enhanced by using a highly elastic cushioning material or a fitting member as the surface material of the contact and locking surfaces of the locking mount portion 21 and the locking inner wall portion 22a and the locking outer wall portion 22b.

  The refrigerator cold air shutoff device of the present invention has a structure capable of reliably shutting off cold air for each refrigerated storage room, a structure in which the cold air shutoff device can be easily attached, a structure in which goods can be taken in and out with both hands, and a low manufacturing cost. By providing a structure that can satisfy consumer needs, such as a structure that is small and lightweight, and a structure that can be retrofitted to a refrigerator that is in use, the power consumption of the refrigerator can be further increased Since it can suppress, the industrial applicability of the cold air shutoff device for refrigerators in the present invention is understood to be extremely high.

DESCRIPTION OF SYMBOLS 10 Cold air shut-off device 20 for refrigerators Insertion pinching block 21 Locking mount part 22a Locking inner wall part 22b Locking outer wall part 23 Rotation shaft hole 24 Insertion pinching part 25 Stopper convex part 26 Mounting stay 30 Bounce-up rotation door 31 Rotation Shaft portion 32 Rotating recess 33 Plate surface portion 34 Locking notch portion 34a Locking notch horizontal portion 34b Locking notch vertical portion 40 Hanging rotation door 41 Rotating convex portion 42 Plate surface portion 43 Locking notch portion 43a Locking notch horizontal portion 43b Locking notch vertical part 50 Shelf board R Refrigerator T Shelf stage H Refrigerated storage room

Claims (4)

A cold air shut-off device for a refrigerator, which is configured by a symmetrical insertion sandwiching block and a flip-up turning door and is mounted on the front surface of a refrigerator shelf board,
The insertion clamping block is formed by being integrally molded with a synthetic resin material or natural rubber having elasticity and flexibility, and an upper portion is engaged with and locked by a locking notch portion of the flip-up turning door. A stop mount portion is formed, a rotation shaft hole into which the rotation shaft portion of the flip-up rotation door is fitted is formed in the center portion, and the flip-up rotation door is inclined rearward in the inner direction. Protruding a stopper convex part to limit, forming the insertion sandwiching part into which the shelf is inserted in the lower part depth direction,
The flip-up turning door is provided with a locking notch for locking the locking mount on both sides of the lower part of the rectangular flat plate, and the central part of the rotary shaft is provided at the lower end of the flat plate. A cold air shut-off device for a refrigerator, wherein the cold air shut-off device for a refrigerator is provided by being shifted from the back surface of the flat plate to the front by the thickness dimension of the flat plate .
A cold air shutoff device for a refrigerator, which is configured by the left-right symmetrical insertion sandwiching block, the flip-up turning door, and the hanging turning door, and is attached to the front surface of the shelf of the refrigerator,
The flip-up turning door is provided with a locking notch for locking the locking mount on both sides of the lower part of the rectangular flat plate, and the central part of the rotary shaft is provided at the lower end of the flat plate. Provided by shifting from the back of the flat plate to the front by the thickness dimension of the flat plate, and further forming a turning recess at the center of both ends of the turning shaft portion,
The droop Kaidotobira is the upper portion of the rectangular plate provided with locking notch to be engaged in contact with the engaging mount portion of the insert clamping block, forming a pivot protrusion on the inside of the both ends It was made by,
2. The cold air shutoff device for a refrigerator according to claim 1, wherein the rotating convex part of the hanging rotary door is fitted into the rotary concave part of the flip-up rotary door to rotate.
  The cold air shutoff device for a refrigerator according to claim 1 or 2, wherein the insertion sandwiching blocks symmetrical to each other are connected and integrally formed at both ends of an attachment stay forming the insertion sandwiching portion. The cold air shutoff device for a refrigerator according to claim 1 or 2, wherein the symmetrical insertion plug block is omitted and formed integrally with a front surface of a shelf of the refrigerator.

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