JP2001227238A - Stopper device for sliding door of refrigerator, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely hold the sliding door of a refrigerator or the like in a stopped position and prevent the door from springing back, by means of a stopper device for the sliding door; reduce load to the hung part of the door when the door stops; facilitate movement of the door by reducing resistance when the door is returned from the stopped position; and use products of the same structure while reversing them horizontally even if the products are different in opening direction (either right or left) or of the type that is openable to both the right and left. SOLUTION: A stopper 24 for stopping the movement of the sheave-equipped door hanger 11 of the sliding door 10 is provided in a predetermined portion of the door sheave travel rail 3 of the sliding door 10. A freely swinging arm 26 extending both rightwards and leftwards from the stopper 10 is disposed horizontally above the stopper 10 and a roller 28 or a downwardly arcuate projection which makes contact with the top of a door sheave 12 moving on the rail 3 is provided at the end of the arm 26. A spring 30 for energizing the arm 26 to keep horizontal is attached to the other end of the arm 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a refrigerator, for example,
The present invention relates to a stopper device for a slide door in a freezer, a storage, a cool box, or the like (hereinafter, referred to as a refrigerator, etc.).

[0002]

2. Description of the Related Art Conventionally, a stopper device of this type is provided with a rubber stopper on an end of a sliding door of a sliding door on a slide door opening side, and the stopper is provided with an opened slide. When the door wheel on the door bottom side of the door hits,
It was to stop the door.

[0003]

However, in the conventional stopper device for a sliding door, the door is hit only by the rubber stopper, and the door is rebounded when the impact force is strong. was there.

[0004] In order to prevent the door from rebounding, an extremely strong holding (catch) force is required. Conversely, when the door is returned from the stop position, there is a problem that the resistance increases.

[0005] Further, in any of the conventional slide door stopper devices, there is a problem that the load is easily concentrated on the hanging portion of the door hanging device, and the structure of the door hanging device must be strengthened.

[0006] In general, a sliding door of a refrigerator may be a left-sided opening, a right-sided opening, or a left-right opening. In either case, the sliding door must be securely held at a stop position. Can prevent the door from bouncing back, and when the door stops, the load on the hanging part of the door is small, and when the opening and closing direction of the sliding door is different from left to right There has been a strong demand for a convenient slide door stopper device that can use products having the same structure.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to respond to the above-mentioned conventional demands. In addition to preventing bouncing back, the load on the hanging portion of the door when the door is stopped can be reduced, and when the door is returned from the stop position, the resistance is small and the door can be easily moved. It is possible to use a product having the same structure even when the opening / closing direction of the sliding door is different from right to left, or when the sliding door is left / right opening, which is very convenient. Is to try to provide.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the invention according to claim 1 of the present invention relates to a door with a sliding door for a sliding door at a predetermined position of a sliding door sliding rail of a sliding door in a refrigerator or the like. In a stopper device for a slide door provided with a stopper for stopping the movement of the hanging member, a swingable arm extending horizontally on both the left and right sides of the stopper is disposed horizontally above the stopper, and at the tip of the swing arm, A roller or a downward-facing arcuate projection is provided at the top of a door wheel that moves on the rail, and at the other end of the swing arm,
A spring for urging the arm so as to keep it horizontal is attached.

According to a second aspect of the present invention, a pair of inner and outer rollers or downward arcuate convex portions are provided at a tip end of the swing arm at predetermined intervals, and an outer roller or downward arcuate arc is provided. The convex part is arranged so as to face an annular concave groove of a door roller moving on a rail.

[0010] The predetermined position of the rail for the door pulley to which the stopper device for the sliding door of the present invention is attached is as follows.
For example, when the sliding door of the refrigerator or the like is one-side open, the right end of the rail on the open side of the door, and conversely, when the slide door is one-side open on the left, so-called selfish difference, the open side of the door This is the left end of the rail. Further, when the sliding door of the refrigerator or the like is, for example, left and right opening, the right and left ends of the rail. Further, when the stopper device according to the present invention is used as a so-called center stopper in the upper central portion of a wide storage opening of a refrigerator or the like, it is an intermediate portion of a rail corresponding to the upper central portion of the storage opening.

[0011]

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

In this specification, left and right refer to FIG. 3, left means the front side of the drawing sheet of FIG. 3, and right means the same back side. The inside means the inside of the refrigerator, and the outside means the outside.

The embodiment shows a case in which the present invention is applied to a refrigerator having a sliding door with a right-hand opening.

Referring to the drawings, on the outer surface of the refrigerator wall of the refrigerator (1), there is required a door-roller running rail (3) made of an aluminum hollow extruded shape and extending to the right side over the storage opening (2). It is attached by a number of L-shaped brackets (4). The sliding door (10) is a so-called right-sided one-sided sliding door.
(10) A pair of left and right door hanging members (11) and (11) are attached to the upper surface of the upper wall, and the door pulley (12) is cantilevered by the pivot (14) at the portion near the upper end of each door hanging member (11). And are mounted so that they protrude toward the rail (3).
(11) The sliding door (10) is slidably suspended on the rail (3) via (11). In this embodiment, the rail (3) is wide, and the ridges (5) for guiding the door rollers are provided on the outermost side, and two inner enlarged grooves for fitting nuts are provided on the inner side.
(6) and (6) are provided in the longitudinal direction of the rail (3).

An inverted frustoconical stopper (24) made of an elastic material such as hard rubber is provided on the right end (3a) of the door carrier traveling rail (3) on the slide door open side. In the embodiment of the stopper device (20) according to the present invention, the right end of the rail
(3a) A stopper mounting board (21) is mounted on the rail (3) with bolts and nuts so as to be adjustable in the longitudinal direction of the rail (3).
(22) is provided. The inner edge of the stopper mounting board (21) coincides with the inner edge of the rail (3), and the outer edge of the stopper mounting board (21) projects outside the outer edge of the rail (3). It is made and the rising wall (22)
Has the same width as the width of the stopper mounting board (21). A pair of inner and outer bolt holes (34) are provided on the rising wall (22),
Bolts (35) and nuts (not shown in the drawings) are provided at predetermined intervals so as to be symmetrically positioned around the center of the width of the rising wall (22), and are inserted through the outer bolt holes (34). ), The stopper (24) is mounted on the front surface of the outer half of the rising wall (22). The stopper (24) is disposed at a position protruding slightly outward from the ridge (5) for guiding the door roller of the rail (3). As will be described later, the inner bolt hole (34) of the rising wall portion (22) is provided with the stopper device of the present invention even when the opening and closing directions of the sliding door (10) of the refrigerator (1) are different from each other. This is provided so that (20) can be used.

On the other hand, a pair of overhanging walls (13) and (13) are provided on the left and right side edges of the upper end of each door hanging tool (11), respectively.
(3) It is provided so as to protrude to the side. The portion (13) is adapted to hit the stopper (24).

Above the stopper (24), a swingable arm (26) extending to the left and right sides from the stopper (24) is horizontally disposed, and a rail ( 3) A roller (28) is provided on the upper part of the door wheel (12) that moves upward. That is, in this embodiment, the horizontal wall (2) is provided on the upper end of the rising wall (22) of the stopper mounting board (21).
3) is provided so as to extend to the right, and a pair of bearing brackets (25) and (25) are provided on the inner and outer side edges of the horizontal wall portion (23), respectively, so as to protrude upward. A pivot (27) is suspended horizontally in the middle part of the length of (25).
The swing arm (26) has a substantially inverted U-shaped cross section, and a part closer to the door end side than the center of the inner and outer side walls (26a) (26a) of the swing arm (26) is pivoted ( The swing arm (26) is swingably supported by the swing arm (26), and is mounted so as to be located at the center of the width of the stopper mounting board (21).

The inner and outer side walls (26) of the end of the swing arm (26) which extend beyond the stopper (24) to the left.
a) (26a), a pair of small rollers (28) (28) relatively smaller than the door roller (12) are provided side by side at a predetermined interval by a common pivot (29), and both small rollers (28 ) And (28) are rotatably mounted at positions along the opposing surfaces of the arm side walls (26a) and (26a), respectively, of the two small rollers (28) and (28), 28) so that it faces directly above the ridge (5) for guiding the door roller of the rail (3), that is, it faces the annular groove (14) of the door roller (12) that moves on the rail (3). And is held so as to enter the annular groove (12a) of the moving door wheel (12) and hit the upper end of the door wheel (12). As will be described later, the other small roller (28) on the other side can also be used in the stopper device (20) of the present invention even when the opening and closing directions of the sliding door (10) of the refrigerator (1) are different from each other. )
Is provided to enable the use.

Next, a coil spring (30) is provided between the right end of the swing arm (26) and the stopper mounting board (21) to keep the swing arm (26) in a horizontal state at all times. I have. The coil spring (30) is connected to the upper wall (2) of the swing arm (26).
It is fastened to the right end of 6b) by a long screw (31) screwed from above. The coil spring (30) urges the right end of the upper wall (26b) of the swing arm (26) upward by the elastic force thereof, and urges the swing arm (26) to always hold the horizontal state. Therefore, the small roller (28) at the tip of the swing arm (26) is always held at a position where it hits the upper part of the door roller (12) on the door end side.

At a predetermined position near the outside of the refrigerator door (2) of the refrigerator (1), a sliding door (10) is pressed against a three-sided frame at the periphery of the refrigerator door (2) to seal the lower end of the door. Press roller
(8) is arranged (see Fig. 3), and a lower stopper for stopping the lower end of the sliding door (10) at the bottom of the door is provided at a predetermined location near the outside of the storage wall on the opening side of the refrigerator (1). (9) is arranged (see FIG. 4).

In the above description, the sliding door (10) moves from the side of the refrigerator door (2) of the refrigerator (1) on the rail (3) in the opening direction, that is, rightward, and comes near the rail end (3a). And the door roller (12) of the door butt side door hanging tool (11) of the sliding door (10) is the outer small roller (28) at the tip of the swing arm (26) of the stopper device (20).
At this time, the upper end of the door roller (12) is positioned on the outer small roller at the tip of the swing arm (26).
(28), the swing arm (26) is swung about the pivot (27) by the passage of the door (12) of the slide door (10), and the small roller at the tip of the swing arm (26) (28) is a door wheel
(12) It passes over the top of the door wheel (12) while being rotated in the opposite direction due to frictional contact with the door wheel (12) while being inserted into the annular groove (12a) at the upper end. At this time, swing arm (2
6) The tip is pushed up against the elastic force of the coil spring (30), and conversely, the other end of the swing arm (26) is lowered.
When the small roller (28) passes over the top of the door roller (12), the swing arm is turned by the resilient force of the coil spring (30).
The other end of (26) is pushed up, the swing arm (26) is restored to the horizontal state, and the small roller (28) at the tip of this swing arm (26)
Is held at its original height on the left. Then immediately,
The right overhanging wall portion (13) of the door hanging device (11) hits the stopper (24), and the door (10) stops.

Thus, before the sliding door (10) stops,
First, the upper end of the door roller (12) is the small roller (28) of the swing arm (26).
To push this up, the impact force is dispersed,
The impact when the sliding door (10) subsequently stops is reduced, and the load on the hanging portion of the door hanging device (11) can be reduced.

Further, since the impact force when the slide door (10) stops is reduced, the rebound force of the door (10) also becomes small,
In addition, the small roller (28) at the tip of the swing arm (26) is located above the door roller (12) on the side of the door end, over the door roller (12) to the left, and the storage opening (2).
It is located so as to hit the door wheel (12) from the side,
The swing arm (26) is in a horizontal state by being urged by the resilient force of the coil spring (30), that is, the small roller (28) is a door roller (12).
The door is held at the height of the top of the door, so that the door (12) can be securely detented, and the sliding door (10) can be
(2) The door (10) can be reliably held in a stopped state when the slide door (10) is fully opened without being returned to the side.

When the slide door (10) is pulled back to the left, that is, toward the refrigerator opening (2), the slide door (1) is pulled back.
By pulling the door (0) in the closing direction, the door roller (12) on the door end side of the door (10) will pass under the small roller (28) at the tip of the swing arm (26), this time from right to left. However, at this time, the small roller (28) at the tip of the swing arm (26) rotates in the opposite direction due to frictional contact with the door wheel (12) and crosses the top of the door wheel (12), and accompanying this, The tip of the swing arm (26) is pushed up against the elastic force of the coil spring (30), and the other end of the arm (26) is lowered. The sliding door (10) can be moved to the left, that is, to the refrigerator opening (2).

As shown in FIG. 2, a stopper device (20) also corresponds to the stop position of the slide door (10) on the left end (3b) of the rail (3) on the warehouse (2) side. It is mounted in the opposite direction to the right and left ends of the rail (3a), but the stopper is made of an elastic body (24)
Is provided, but the swing arm (26) having the small rollers (28) (28) is not provided. The stopper (24) is replaced so as to be located on the front surface of the outer half of the rising wall (22) of the stopper mounting board (21). That is, when the stopper mounting board (21) is turned left and right oppositely, of the pair of bolt holes (34) of the rising wall portion (22), the bolts (35) inserted into the bolt holes (34) located on the outside. The stopper (24) is fixed by a nut and a nut (not shown). Then, when the sliding door (10) moves to the left to close the storage opening (2), the left overhanging wall (13) of the door hanging device (11) on the door end side.
Is arranged to hit the stopper (24).

As shown in FIG. 3, a ridge (7) is provided on the outer surface of the door carrier traveling rail (3) over the entire length of the rail (3). Then, on the inner surface of each of the door hanging members (11) of the sliding door (10), it is located near the lower part of the ridge (7) and comes into contact with the lower surface of the ridge (7) when the door roller (12) rises. A wheel prevention roller (15) is attached. The pivot (17) of the roller for preventing wheel removal (15) is supported in a cantilever manner by a bearing member (16), and the bearing member (16) is closed by a pair of screws (18). It is attached to the inner side of the so that it is located near the lower side of the door wheel (12). As described above, when the door wheel (12) traveling on the rail (3) rises, the derailment prevention roller (15) hits the lower surface of the ridge (7), so that the slide door (10) is derailed. Since the roller (15) is used to prevent the lift of the door roller (12), the contact resistance with the rail (3) is extremely small, and the sliding door (10) The opening and closing operation can be performed lightly with a small force. In addition, the wear of the rail (3) and the anti-lift roller (15) can be greatly reduced, and therefore, there is an advantage that it has excellent durability and can be used with a small or light sliding door. .

It should be noted that, contrary to the case of the above-described embodiment, the stopper device according to the present invention can also be used when the sliding door (10) of the refrigerator (1) has a left-sided one-sided opening and is so-called wrong.
By attaching the (20) to the left end of the rail (3) in the opposite direction to that of FIG. 1, it can be used similarly. In this case, as described for the stopper device (20) on the left end (3b) side of the rail (3) in FIG.
Need to be replaced so that it is located in front of the outer half of the rising wall (22) of the mounting board (21).
The swing arm (26) of (0) and a pair of small rollers (28) and (28) attached to the tip of the swing arm (26) may be left as they are. This is because, of the pair of inner and outer small rollers (28) and (28) attached to the tip of the swing arm (26), the small roller (28) arranged inside in FIG. The rails (3) are disposed so as to face directly above the ridges (5) for guiding the door rollers of the rail (3). And this small roller (28)
Is the annular groove (12a) of the door roller (12) on the door bottom side of the sliding door (10)
Into the door (12) and the sliding door (1
0) can reduce the impact when it stops, and can also detent the door roller (12) and thus deactivate the sliding door (10).

Further, unlike the above embodiment,
When a pair of left and right sliding doors (10) and (10) are provided for the wide storage opening (2) of the refrigerator (1), and the sliding doors (10) and (10) are open right and left, the present invention Stopper device by
By attaching (20) and (20) to the left and right ends of the door carrier traveling rail (3) in opposite directions, the same can be used. Also, in this case, the stopper devices (20) and (20) according to the present invention are attached to the middle portion of the rail (3) corresponding to the upper center of the wide storage opening (2) in opposite directions to the left and right, so that the left and right opening slide can be performed. It can be used as a so-called center stopper for the doors (10).

In each of these cases, the small roller (28) at the tip of the swing arm (26) of the stopper device (20) is moved before the left and right sliding doors (10) and (10) stop. The impact force is dispersed by hitting the upper end of the door roller (12), and the impact when the sliding doors (10) and (10) stop by the stopper (24) is alleviated.
1) The load on the hanging portion of (11) can be reduced. In addition, since the impact force when the sliding doors (10) and (10) stop is reduced, the rebound force of the doors (10) and (10) is also reduced, and the sliding doors (10) and (10) are not returned. Sliding door (10) (1
0) can be reliably held in a stopped state. And
Even when the sliding doors (10) and (10) are opened and closed, the resistance is extremely small, and the sliding doors (10) and (10) can be easily opened and closed.

As described above, since the pair of inner and outer rollers (28) and (28) are arranged at a predetermined interval at the tip of the swing arm (26) of the stopper device (20), the sliding door (Ten)
Even if the opening and closing directions of the right and left are different from each other, or if the opening and closing directions are both right and left, the product of the stopper device (20) having the same structure should be reversed to the left and right and the mounting position of the stopper (24) should be slightly changed. Can be used in common, and is very convenient.

In the above embodiment, a pair of small detent rollers for stopping the sliding door is provided at the tip of the swing arm (26), which extends to the left of the stopper (24) of the swing arm (26). (28) Although (28) is provided, the invention is not limited to this, and instead of such small rollers (28) and (28), a downward arcuate convex portion having a similarly low frictional resistance may be provided. good.

In the above embodiment, the slide door stopper device (20) of the present invention is applied to the refrigerator (1). However, the present invention is also applicable to a freezer, a storage, or a cold storage. The present invention is applied to a sliding door of a storage or the like in the same manner.

[0033]

According to the first aspect of the present invention, as described above, the stopper for stopping the movement of the door hanging member with the door roller of the slide door is provided at a predetermined position of the door roller traveling rail of the slide door in a refrigerator or the like. In the slide door stopper device provided, a swingable arm extending horizontally on the left and right sides of the stopper is disposed horizontally above the stopper, and at the tip of the swing arm, an upper part of a door wheel that moves on a rail. A roller or a downward-facing arcuate projection is provided,
The other end of the swing arm is provided with a spring that urges the arm to be kept horizontal. According to the slide door stopper device of the present invention, the slide door is securely stopped. Can prevent the door from bouncing back, reduce the load on the hanging part of the door when the door is stopped, and provide a resistance when returning the door from the stop position. Is small and can be easily moved.

According to a second aspect of the present invention, a pair of inner and outer rollers or downward arcuate convex portions are provided at a tip end of the swing arm at predetermined intervals, and an outer roller or downward arcuate arc is provided. Since the convex part is arranged to face the annular groove of the door roller moving on the rail,
Even if the opening and closing directions of the sliding door are different from each other, or if the sliding door is open from both sides, the products of the stopper device having the same structure can be used in common by simply turning the left and right opposite directions and changing the mounting position of the parts. It is very convenient.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a slide door stopper device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a slide door and a rail portion of the refrigerator.

FIG. 3 is a longitudinal sectional view of a door hanging side door hanging part.

FIG. 4 is a vertical cross-sectional view of an end of a door end side rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Storage opening 3 Rail 3a Rail end part 10 Sliding door 11 Door hanging tool 12 Door roller 13 Overhanging wall part 14 Axis 20 Stopper device 21 Mounting board 22 Standing wall part 23 Horizontal wall part 24 Stopper 25 Bearing bracket 26 Swing arm 26a Tip side wall 26b End upper wall 28 Roller 30 Coil spring

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kaoru Nobehara 3-8-5 Okamotocho, Minato-ku, Osaka Saeki Metals Co., Ltd. F-term (reference) 3L102 JA02 KA08 KB20 KB21 KB22

Claims (2)

[Claims] 1. A slide door stopper device provided with a stopper for stopping the movement of a door hanger with a door roller of a slide door at a predetermined position of a door roller travel rail of a slide door in a refrigerator or the like. A swingable arm extending on both the left and right sides is horizontally arranged, and at the tip of the swing arm, a roller or a downward arc-shaped convex portion that hits the upper part of a door wheel that moves on a rail is provided, and A stopper device for a slide door in a refrigerator or the like, wherein a spring for urging the arm to be kept horizontal is attached to the other end. 2. A door wheel in which a pair of inner and outer rollers or a downwardly extending convex portion are provided at a predetermined interval at an end of the swing arm, and an outer roller or a downwardly extending convex portion moves on a rail. The stopper device for a slide door in a refrigerator or the like according to claim 1, wherein the stopper device is disposed so as to face the annular concave groove.