JP2504710Y2 - Sealing device for sliding doors in refrigerators, etc. - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide door sealing device in, for example, a large prefabricated refrigerator, a freezer, a storage or a cooler (hereinafter referred to as a refrigerator).

[0002]

2. Description of the Related Art Generally, a slide door provided in a large-sized prefabricated refrigerator has a structure in which it is pressed against the outer surface of the peripheral edge of the container so that cold air in the container does not leak when the container is closed. Has become.

The applicant has previously arranged a pair of left and right conical rollers at the lower edge of the refrigerator opening in order to seal such a slide door, while at the bottom of the slide door, on the door side. We proposed a sealing device for a sliding door equipped with a door pulling plate having an inclined inclined surface (see Japanese Patent Application No. 2-34581).

In the previously proposed sliding door sealing device, when the sliding door is in the closed state, the inclined surface of the door closing plate is in contact with the inclined outer peripheral surface of the conical roller, and the weight of the sliding door is reduced. When it touches the shifting plate, its inclined surface slides downward along the inclined outer peripheral surface of the conical roller,
Eventually, the force acts in the direction of moving the door to the peripheral edge of the refrigerator, so that the annular gasket attached to the inside of the door is pressed against the outer surface of the peripheral edge of the refrigerator and adheres thereto.

[0005]

However, since the gasket inside the slide door has elasticity, the reaction force based on the elastic force of the gasket pushes the slide door away from the peripheral edge of the storage opening. The force eventually acts in the direction of lifting the slide door upward through the inclined surface of the door closing plate at the lower end of the door and the inclined outer peripheral surface of the conical roller that is in contact with this, whereby the cold air in the refrigerator is cooled. There was a problem that could leak.

The object of the present invention is to solve the above problems,
In the closed state of the slide door, the gasket inside the slide door can be pressed firmly against the outer surface of the peripheral edge of the storage port so that the gasket can be brought into close contact, and the slide door is lifted upward by the reaction force based on the elastic force of the gasket. Another object of the present invention is to provide a sealing device for a sliding door in a refrigerator or the like that can securely hold the inside of the refrigerator in a sealed state without the sliding door once closed being returned to the opening side.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has left and right sides of a lower end portion of a slide door which is pressed against the outer surface of the peripheral portion of the storage opening to close the storage opening when closing the storage opening of a refrigerator or the like. on both sides, mounted rotatably around a respective door bottom portion away prevention roller vertical axis, in a refrigerator or the like to which the left and right sides to the door rocking motion preventing member corresponding to the refrigerator port periphery lower end they are mounted , Left and right door swing
Preventing members have the same structure as each other and prevent each door from swinging.
The member is a mounting wall fixed to the lower edge of the peripheral edge of the storage opening, and
And the door side separation prevention roller on the edge of the storage opening.
Made by the guide vital plate spring so as to approach gradually
A roller guide inclined walls, mounting wall and the roller guide inclined portion
The right side wall that connects to the right end of the
And each door swing prevention member is
Opening to the left and to the left, each door swing prevention part
The opening between the material mounting wall and the left end of the roller guide slope is wide.
The roller guide slope is attached to the right side wall.
The distance between the door and the wall is narrow, and the lock
-The lower edge of the base on the side close to the peripheral edge of the storage opening
Is fixed to the bottom wall of the door swing prevention member by welding , while the free end on the opposite side is separated from the bottom wall, and the free end of each free end is near the tip of the storage opening. The gist is a device for sealing a sliding door in a refrigerator or the like, which is provided with a roller detent convex portion having a substantially rectangular shape when seen from a plane protruding toward the side.

[0008]

According to the above-described device for sealing the slide door, when the door of the refrigerator or the like is closed, the lower end of the slide door prevents the lower end of the door from separating, and the roller guide of the door swing prevention member at the lower end of the peripheral edge of the door. Guided by the inclined part and gradually approaching the peripheral edge of the storage opening, the slide door is pressed firmly against the outer surface of the peripheral edge of the storage opening to be brought into close contact with it, and by the reaction force based on the elastic force of the gasket inside the slide door. However, the sliding door is not lifted up from the peripheral portion of the refrigerator such as the refrigerator, and of course lifted upward, and there is no fear that cold air in the refrigerator will leak.

Further, when the sliding door closes the storage opening, the separation prevention roller on the sliding door side is guided to the roller guide inclined portion of the door swing prevention member, but the roller is first of all the free end portion of the inclined portion. The roller detent convex portion provided on the roller end, and then the roller detent convex portion is pushed forward against the spring force of the leaf spring that constitutes the free end, and beyond the convex portion to the base side. Reach The convex portion immediately returns to the original state by the action of the leaf spring. Therefore, once the slide door is closed, the movement of the roller in the return direction is blocked by the detent convex portion, and therefore the slide door may return in the opening direction depending on external factors such as internal pressure. Instead, the inside of the refrigerator is securely kept in a sealed state.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

The drawings show a case in which the sliding door sealing device of the present invention is applied to a large prefabricated refrigerator of an assembled type.

In this specification, front and rear and left and right refer to
With reference to FIG. 1, the front refers to the lower side of FIG. 1, the rear refers to the upper side, and the left and right sides refer to the rear.

1 to 4 showing the first embodiment of the present invention, a rail (20) extending from the upper edge of the storage opening (2) to the right side is attached to the front wall of the refrigerator (1), A slide door (3) is slidable left and right along the rail (20). An annular gasket (16) is attached to the inside of the peripheral edge of the slide door (3).

At the left and right ends of the lower surface of the slide door (3), roller mounting members (4) and (4) of a shape viewed from a plane and an inverted shape are horizontally provided by bolts (28) and nuts (not shown). It is installed. These roller mounting members (4) (4)
Fixing part with a pair of front and rear long holes (9) (9) for inserting bolts
(5) (5) and arm portions (6) and (6) extending to the left or right from these tips are provided, and the door bottom end separation prevention roller (7) is provided at the tips of the arm portions (6) and (6). Each (7) is mounted rotatably about a vertical axis (8) (8).

On the other hand, door swing preventing members (10) are provided on the left and right sides of the lower edge of the storage opening peripheral edge (1a) corresponding to these rollers (7) (7).
(10) is installed. Door swing prevention member (10) (10)
Is a mounting wall (11) fixed by a bolt (28) and a nut (not shown) to the lower end of the peripheral edge (1a) of the storage opening, and a roller (7) that faces the mounting wall (11) and faces the door (3). ) Is around the opening
A roller guide inclined wall (12) that guides to gradually approach the (1a) side, a right wall (13) connected to the mounting wall (11) and the right end of the roller guide inclined portion (12), and the lower side of these. Bottom wall
(15), the mounting wall (11) and the roller guide inclined portion (12) are wide on the left end opening (14) side, and are narrower toward the right side wall (13). In addition, a pair of long holes (27) (27) that are long in the vertical direction are formed in the mounting wall (11) of each door rocking prevention member (10), and the doors can be screwed in by bolts (28) (28). The height of the rocking preventive member (10) is slightly adjusted.

Here, the roller guide inclined portion formed of a leaf spring
(12) The lower edges of the bases (12a) (12a) on the side closer to the storage opening peripheral edge (1a) of (12) are the bottom walls (15) (15) of the door swing preventing members (10) (10). ) By welding, while the opposite free ends (12b) (12b) are separated from the bottom walls (15) (15). The free end portions (12b) and (12b) are provided with roller detent convex portions (17) and (17), which are substantially square-shaped as viewed from the plane protruding toward the storage opening peripheral edge portion (1a), at the portions near the tips. Has been.

The slide door (3) moves rightward along the rail (20) on the front wall of the refrigerator (1) from the opened state to the storage opening (2), and the door (3) The lower end separation prevention rollers (7) and (7) are the door swing prevention members on the lower end side of the storage opening peripheral edge (1a).
(10) It enters through the openings (14) and (14) of the (10), and is guided so as to gradually approach the storage opening peripheral edge (1a) side along the roller guide inclined walls (12) and (12). For this reason, the sliding door (3) is firmly pressed against the outer surface of the peripheral edge portion (1a) of the storage opening to be brought into close contact therewith, and by the reaction force based on the elastic force of the gasket (16) inside the sliding door (3), The slide door (3) is never separated from the refrigerator opening (1a) peripheral edge (1a).

When the slide door (3) closes the storage opening (2), the separation prevention rollers (7) and (7) on the slide door (3) side first have the roller detent convex portion (17). When hitting (17), these convex portions (17) (17) are pushed forward once against the spring force of the leaf springs of the free ends (12b) (12b) of the roller guide inclined portions (12) (12). , Over both convex portions (17), (17) to reach the base portion (12a) (12a) side. Since both convex portions (17) (17) immediately return to their original state due to the action of the leaf spring, once the sliding door (3) is closed, the rollers (7) (7) return to their original direction. The movement is blocked by these detent protrusions (17) (17), so unless the slide door (3) is moved in the opening direction by hand, it may be slid depending on external factors such as internal pressure. The door (3) does not return in the opening direction.

Further, the door swing preventing member (10) (10) is a refrigerator
Since it is fixed to the lower edge of the storage opening edge (1a) of (1) with bolts and nuts, it does not protrude much from the front wall and does not interfere with the loading and unloading of luggage into the refrigerator (1). It is a thing.

The slide door (3) is constantly biased toward the upper side of the rail (20) of the refrigerator (1) to open the door.
(3) A so-called semi-auto slide mechanism that semi-automatically moves only in the opening direction is provided, but this is not shown.

FIG. 5 shows a second embodiment of the present invention. Here, the difference from the case of the first embodiment is that
The roller mounting members (24) (24), which are substantially L-shaped when viewed from the front, are mounted on the left and right side surfaces of the lower end of the slide door (3) in a height-adjustable manner, and at the periphery of the refrigerator opening (1). The bottom wall (15a) (15b) of the door swing prevention member (10) on the part (1a) side has a vertically double structure, and the upper bottom wall (15a) having the roller guide inclined portion (12) is , The lower bottom wall (15b) connected to the mounting wall (11) can be moved back and forth, and by moving the upper bottom wall (15a), the roller guide inclined part (12) with respect to the separation prevention roller (7). The point is that you can adjust the front-back position.

The roller mounting members (24), (24) are bolts.
A fixed part (25) (25) having a pair of long front and rear long holes (27) (27) into which (28) is inserted, and arm parts (26) (26) extending horizontally from these tips are provided. ing. Also, door swing prevention member
The upper bottom wall (15a) of (10) has a pair of left and right elongated holes (27) (27) formed before and after inserting the bolt (28).

In the second embodiment, the rollers (7) and (7) for preventing the lower end of the door are separated from the vertical axes at the tips of the arms (26) and (26) of the roller mounting members (24) and (24), respectively. (8) The roller is attached rotatably around (8) and the roller guide inclined part (12) (12) composed of a leaf spring, near the tip of the free end (12b) (12b) of the roller. Other points such as the provision of the detent projections (17) and (17) are the same as in the case of the first embodiment, and therefore, the same reference numerals are attached to the same parts in the drawings. did.

Although the sliding door sealing device of the present invention is applied to the large prefabricated refrigerator of the assembling type in the above embodiment, the present invention is not limited to this. Alternatively, the same applies to a slide door in a cool box or the like.

[0025]

[Effect of the Invention] As described above, the present invention is applicable to refrigerators and the like.
When the storage port is closed, it is pressed against the outer surface of the peripheral part of the storage port and adheres closely.
The left and right sides of the lower end of the sliding door to be brought, the door lower portion away preventing roller rotatably mounted about a vertical axis, respectively, the door swings prevent the left and right sides of the compartment opening periphery lower end corresponding to these Refrigerator etc. to which components are attached
The left and right door swing prevention members have the same structure.
Each door swing prevention member is fixed to the bottom edge of the storage opening.
Specified mounting wall and for preventing separation on the door side facing it
Only guide the roller so that it gradually approaches the edge of the storage opening.
A roller guide inclined wall made by One leaf springs, mounting wall
And the right side wall connected to the right end of the roller guide slope,
Is it composed of a bottom wall connected to the bottom of these
Use the same shape for the left and right door swing prevention members.
Able to use, the structure is very easy single, Katsuso
Is easy to install and, in turn, a slide door sealing device is
It is possible to easily and inexpensively manufacture a provided refrigerator or the like.
It

In addition, the sliding door sealing device of the present invention
The door swing prevention members toward the top and left
Opening, mounting wall of each door swing prevention member and roller guide
The opening with the left end of the slope is wide, and it reaches the right side wall from this
The narrower the distance between the roller guide slope and the mounting wall, the better.
Around the door opening of the roller guide slope of each door swing prevention member
The bottom edge of the base on the side near the
While it is fixed by welding, the self on the opposite side
The free end is separated from the bottom wall, and each free end is closer to the tip.
Part of the box is a square shape when viewed from the plane protruding toward the peripheral edge of the opening.
Since retaining projection back over La is kicked set, during closing of the compartment opening such as a refrigerator, for preventing the roller away of the sliding door lower end, the roller guides the inclination of the door swinging preventing member compartment opening peripheral portion The slide door is gradually pushed closer to the peripheral edge of the storage opening, so that the slide door is pressed firmly against the outer surface of the peripheral edge of the storage opening to be brought into close contact with the slide door, and therefore the reaction force based on the elastic force of the gasket inside the slide door is applied. However, the slide door is lifted upward without being separated from the peripheral portion of the refrigerator such as a refrigerator, and there is an effect that cold air in the refrigerator does not leak.

Further, since the door swing preventing member is fixed to the lower end portion of the refrigerator peripheral edge portion, it does not protrude much from the front wall and does not hinder the loading and unloading of luggage into and from the refrigerator.

Moreover, the base portion of the roller guide inclined portion formed of the leaf spring near the storage opening peripheral portion is fixed to the bottom wall of the door swing preventing member, while the free end portion on the opposite side is fixed. Since the free end is separated from the bottom wall and provided with a convex portion for roller detent that is substantially square-shaped when viewed from the plane projecting toward the peripheral edge of the storage opening, the free end portions are provided with slide doors. When the mouth is closed, the sliding door side separation prevention roller guided by the roller guide inclined portion first hits the roller detent convex portion at the free end and then resists the spring force of the leaf spring at the free end. These roller detent convex portions are once pushed away to the front and beyond the convex portions to reach the base side. When the roller goes over the convex portion, the convex portion immediately returns to its original position due to the action of the leaf spring, so that once the slide door is closed,
The movement of the rollers in the return direction is blocked by the detent projections, so the inside of the refrigerator can be reliably kept in a sealed state without returning to the opening direction due to external factors such as internal pressure. Play.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a main part of a refrigerator opening showing a first embodiment of the present invention.

FIG. 2 is a horizontal cross-sectional view in which an enlarged main part of the storage opening is omitted.

FIG. 3 is an enlarged vertical cross-sectional view of a main portion of the storage opening portion.

FIG. 4 is a front view showing the entire refrigerator.

FIG. 5 is an enlarged perspective view of an essential part of a refrigerator opening showing a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Refrigerator 1a Storage opening peripheral part 2 Storage opening 3 Sliding door 7 Door lower end separation prevention roller 8 Vertical shaft 10 Door swing prevention member 11 Mounting wall 12 Roller guide inclined part 12a made of leaf springs 12a Base part 12b Free end part 13 Right Side Wall 14 Opening 15 Bottom Wall 15a Upper Bottom Wall 15b Lower Bottom Wall 17 Roller Detent Projection

Claims (1)

(57) [Scope of utility model registration request] 1. The left and right sides of the lower end of the sliding door (3) which is pressed against the outer surface of the peripheral edge (1a) of the refrigerator opening (2) when the refrigerator (1) or the like is closed, and the door lower ends. parts away prevention roller (7) (7), each vertical axis (8) around rotatably attached to the (8), the refrigerator port peripheral portion in correspondence with these (1a) left and right sides to the door swinging the lower end Preventing member (10) (10) is installed
In a refrigerator, etc., where the left and right door swing prevention members (10) (1
0) have the same structure as each other, and each door swing prevention member (1
(0) is the mounting wall (11) fixed to the bottom edge of the storage opening (1a)
And a roller (7) for preventing separation that faces the door and is on the door (3) side.
The roller guide slanted wall (12) made of leaf springs , and
Right side of the wall (11) and the right end of the roller guide slope (12)
By the side wall (13) and the bottom wall (15) connected to these undersides
In addition to being configured, each door swing prevention member (10) extends upward.
And open to the left and each door swing prevention member (10)
Opening between the mounting wall (11) and the left end of the roller guide slope (12)
(14) is wide, and roller guide extends to the right side wall (13)
The distance between the inclined part (12) and the mounting wall (11) is narrow,
The lower edge portion of the compartment opening periphery (1a) to the side near the base of the roller guide inclined portion of the Kakutobira rocking motion preventing member (10) (12) (12a) is, the bottom of TobiraYurado preventing member (1 0) whereas are being fixed by welding to the wall (1 5), the free end of the opposite (12b) have been separated Ri good bottom wall (1 5), the tip of the free end portion (12b) A sealing device for a sliding door in a refrigerator or the like, which is provided with a roller detent convex portion ( 17) having a substantially square shape when seen from a plane protruding toward the storage opening peripheral portion (1a) side at a side portion.