JP2510611Y2 - Door gasket structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes a fin having at least a sagittal portion which is inserted into a groove of a door frame, and a fin which forms an air chamber on the other side where the sagittal portion is provided. , A door gasket that is equipped with a magnetic material and is attached to the door frame by inserting the arrow-shaped portion into the groove portion of the door frame, more specifically, but not limited to, a refrigerator, a freezer, and a warmer. The present invention relates to a structure of a door gasket which is attached to a peripheral edge portion on the back side of an opening / closing door of a heat insulating box such as a warehouse, and comes into contact with the opening of the heat insulating box when the opening is closed.

[0002]

2. Description of the Related Art For example, a door gasket provided on the back side of an opening / closing door of a refrigerator is disclosed in Japanese Utility Model Publication Nos. 62-16637, 62-12228 and 62-41178. It is well known in the art. And, a typical representative example thereof is shown in FIGS. As is clear from these figures, the front surface of the refrigerator 52 formed of a heat insulating box is opened, and the opening / closing door 5 is opened in these openings.
0 and 51 are provided. Then, a door gasket 60 is attached to the peripheral portion on the back side thereof,
0 is the end surface 53 of the opening of the heat insulating box 52 when the door is closed.
It comes into contact with.

The door gasket 60 includes a substrate portion 61, an arrow-shaped portion 62, a locking portion 63, a plurality of fins 64, 64, 65,
It is composed of a magnet 66 and the like. The arrow 62 is
The locking portion 63 is also formed integrally with the arrow-shaped portion 62 at the end portion of the substrate portion, protruding from the substrate portion 61 in a substantially right-angled direction. Fins 64, 64, 65 on the side opposite to the arrow-shaped portion 62
Is formed on the substrate portion 61, and is formed by the fins 64, 64.
In the air chamber 67, the fin 64 and the fin 65 form a second air chamber 68. The base of the fins 64, 64 is shown in FIG.
As shown in FIG. 3A, the bulging portion 69 of the fin 64 is located between the arrow-shaped portion 62 and the locking portion 63.
Is located slightly retracted from just above the arrow-shaped portion 62.
A magnet or a permanent magnet 66 that absorbs the opening of the heat insulating box is provided so as to be surrounded by part of the fin. As is clear from the figure, this permanent magnet is provided at a position offset from the upper space of the arrow-shaped portion 62.

A resin door frame 70 fixed to the rear edge of the opening / closing door 50 has a sagittal portion 62 of a door gasket inserted therein, as is well known in the art and shown in FIG. It is composed of a hole or slit 71 and a hook portion 72 formed at a predetermined interval from the slit 71.

Therefore, the locking portion 63 of the door gasket
To the hook portion 72 of the door frame 70, and the arrow-shaped portion 62 with the fin 65.
When pressed from above and inserted into the slit 71, the substrate portion 61 of the door gasket is attached to the opening / closing door 50 in a state of being in close contact with the surface of the door frame 70. Door 5 in this state
When 0 is closed, the magnet 66 of the door gasket is magnetized by the refrigerator main body 53 to prevent the cool air from leaking out of the refrigerator and the air chamber 68 covered with the fins 65 allows the cool air to enter the magnet 66 from the refrigerator. Is prevented.

[0006]

As described above, the conventional door gasket has the excellent effect that it can be attached to the opening / closing door only by inserting the arrow-shaped portion 62 into the slit 71 of the door frame. However, the conventional door gasket has a drawback that the mounting operability or workability is poor. That is, since the permanent magnet is provided at a position deviated from the space above the arrow-shaped portion 62, as shown in FIG. 14, pressing force is applied from directly above the arrow-shaped portion to move the arrow-shaped portion of the door frame 70. It can be inserted into the slit 71. However, a part of the bulged portion 69 of the fin 64 is part of the arrow-shaped portion 62.
Since it hangs just above the fin, when a pressing force is applied from above the fin 65, a part of the bulged part 69 of the fin comes to the arrow-shaped portion and the thickness is not uniform, and as a result, the pressing force is at a right angle. However, there is a drawback that the light is not transmitted to the arrow-shaped portion 62 but is dispersed as shown by arrows a and a in FIG. Since the pressing force or the inserting force is not accurately transmitted to the arrow-shaped portion 62 as described above, the pressing force or the inserting force is forced to be inserted by a human sense, and the fact is that it is not mechanized yet. Further, since it is not transmitted in a concentrated manner, a large force is required even when it is pressed and inserted by a finger, resulting in poor workability. Therefore, according to the present invention, in a door gasket provided with at least a mounting arrow-shaped portion, the structure of the door gasket having a good push-insertability of the arrow-shaped portion with respect to the groove of the other side, that is, workability when pushing and inserting with a finger is improved. It is also an object of the present invention to provide a structure of a door gasket that can be easily mechanized.

[0007]

In order to achieve the above object, the invention according to claim 1 has an arrow-shaped portion to be inserted into at least a groove portion of a door frame, and an air on the other side where the arrow-shaped portion is provided. A fin that forms a chamber and a magnetic body that is provided on the other side of the side where the sagittal portion is provided are provided, and by inserting the sagittal portion into the groove portion of the door frame, A door gasket adapted to be attached to a door frame, wherein the magnetic body is provided at a position offset from a fin pressing portion above the arrow-shaped portion, and the fin is
When the fin pressing portion above the arrow-shaped portion is pressed to insert the arrow-shaped portion into the groove of the door frame, the fins of the fin pressing portion are overlapped with each other to have a substantially uniform thickness. According to a second aspect of the present invention, the air chamber according to the first aspect is provided with a guide portion projecting into the air chamber corresponding to the arrow-shaped portion, and the third aspect of the invention is the second aspect. The top portion of the guide portion is formed so that its cross section has a substantially groove shape.

[0008]

Since the present invention is constructed as described above,
When the door gasket is attached to, for example, the door frame of the opening / closing door, it is pressed with a finger or an instrument, for example, a roller from just above the fin pressing portion. Then, the arrow-shaped portion is inserted into the groove portion of the door frame, and the door gasket is fixed to the door frame. During this pressing and inserting operation, the magnetic body is provided in a position offset from the fin pressing portion above the arrow-shaped portion, and since the fins have a substantially uniform overlap, they can be pressed with a finger or with an instrument. However, the pressing force is transmitted to the arrow-shaped portion at a substantially right angle, and the arrow-shaped portion is surely inserted into the groove. According to the second aspect of the present invention, the air chamber on the side opposite to the side on which the arrow-shaped portion is provided has the guide portion corresponding to the arrow-shaped portion.
For example, the fin pressing portion is pressed by a roller. Then, the pressing force is transmitted to the arrow-shaped portion via the guide portion, and the arrow-shaped portion is surely inserted into the groove portion. According to a third aspect of the present invention, for example, when the fin pressing portion is pressed by the roller, the roller is substantially directly above the arrow-shaped portion due to the crest of the guide portion formed in the substantially groove shape even if the position of the roller is slightly displaced. Corrected or guided by, the pressing force is concentrated in the center of the arrow. Even when pressing and inserting with a human finger, the pressing force is likewise concentrated on the central portion. This ensures that the sagittal portion is inserted into the groove.

[0009]

EXAMPLE A typical example of the present invention will be described below. FIG. 1 is a cross-sectional view of the first embodiment of the door gasket 1. Referring to this drawing, the schematic shape is the same as that of the conventional gasket shown in FIG. To be understood. That is, the door gasket 1 includes a flat base plate portion 2, a substantially arrow-shaped arrow-shaped portion 3, and a locking portion 4.
And a plurality of fins 5, 6, 9 and a magnet 11. The substrate portion and the like are made of, for example, high polymerization degree vinyl chloride. The arrow-shaped portion 3 is a portion that is inserted into a groove portion 21 of the door frame 20 described later, and has a hollow arrow shape. Therefore, it is inserted into the groove portion in a state of being elastically deformed and reduced in diameter, and once inserted, it is restored to the original state and is prevented from falling off by the arrow. A third air chamber 14 is formed on the lower side of the base plate portion 2, that is, on the same side as the arrow-shaped portion 3, and a locking portion 4 is formed in a substantially hook shape with the end side thereof extended.

The arrow-shaped portion 3 and the locking portion 4 are formed on one surface of the substrate portion 2 as described above, but the first, second and third fins are formed on the other surface on the opposite side. 5, 6, and 9 are integrally formed with the substrate portion 2 from a flexible synthetic resin, for example. That is, the base 7 of the first fin 5 is located on the surface opposite to the arrow-shaped portion 3, and the fin 5 reaches the bag body 10 enclosing the magnet 11 through the bulging portion 8. The second fin 6 extends from the end portion of the substrate portion 3 and reaches the bag body 10 through the bulging portion in the same manner. The third fin 9 rises from the other end of the base plate 1, is bent at a substantially right angle, and is connected to the upper portion of the bag body 10. First to first
The third fins 5, 6, 9 and the substrate portion 2 and the like form first and second air chambers 12, 13. As shown in FIG. 1, the magnet or the rubber magnet 11 is not provided in the space above the arrow-shaped portion 3 but is provided at a position deviated from the arrow-shaped portion 3. The upper surface of the third fin 9 located in the space above the arrow-shaped portion 3 serves as the fin pressing portion 15. Note that the reference numeral 16 in FIG. 1 indicates an air hole.

A door frame 20 to which the door gasket 1 is attached
As shown in FIG. 1B, is integrally formed of, for example, hard vinyl chloride from the groove portion 21, the engaging portion 22 and the like, and is appropriately attached to a heat insulating door.
The groove portion 21 has a hollow portion 23 inside, and the entrance of the groove is tapered toward the hollow portion 23. Therefore, when the arrow-shaped portion 3 is pressed toward the groove portion 21, the arrow-shaped portion 3 is reduced in diameter and enters the cavity portion 23. The engagement portion 22 is a portion with which the locking portion 4 of the door gasket 1 is engaged, and is formed in an inverted U shape when viewed from the side. As is clear from the above description, the gap between the groove portion 21 and the engaging portion 22 is
The distance between the arrow-shaped portion 3 and the locking portion 4 of the gasket is approximately equal.

Next, the operation of the above embodiment will be described. Although not shown in FIG. 2, the locking portion 4 is hooked on the engaging portion 22 of the door frame 20, and the arrow portion 3 of the door gasket is positioned on the groove portion 21 of the door frame 20, and the roller R or The finger F presses the fin pressing portion 15 of the third fin 9 against the substrate portion 2 at a substantially right angle. At this time, since the magnet 11 is not above the fin pressing portion 15, it does not hinder the pressing operation. Then, the pressing force is transmitted to the arrow-shaped portion 3, and the arrow-shaped portion 3 is reduced in diameter by the taper portion of the groove portion 21 and enters the hollow portion 23. Upon entering the hollow portion 23, the arrow-shaped portion 3 is restored to its original state. Therefore, the arrow-shaped portion 3 fits in the groove portion 21, and the door gasket 1 is fixed to the door frame 20. At the time of this pressing and inserting operation, the base 7 of the first fin 5 is located right above the arrow-shaped portion 3, so that the overlapping of the first and third fins 5 and 9 of the fin pressing portion 15 is shown in FIG. As described above, the thickness becomes substantially uniform, and the pressing insertion force concentrates on the arrow-shaped portion 3. This concentrated state is indicated by a single arrow A in FIG.

FIG. 3 shows a second embodiment of the present invention. The same elements as those of the embodiment shown in FIG. 1 are designated by the same reference numerals to avoid redundant description, but according to the present embodiment, the root 7 of the first fin 5 is located above the arrow-shaped portion 3. Instead, it is located to the right in the figure. However, the first
The bulging portion 8 of the fin 5 bulges to a position slightly above the space above the arrow-shaped portion 3 in a natural state where it is not pressed. Therefore, when the fin pressing portion 15 is pressed, the bulging portion 8 of the first fin 5 bends as shown in FIG.
The fins 5 and 9 of 3 are overlapped three-fold to have a uniform thickness. Therefore, the pressing insertion force is concentratedly transmitted to the arrow-shaped portion 3 and can be easily inserted into the groove portion 21.

A third embodiment in which the guide portion 30 is provided on the door gasket 1 is shown in FIG. In the present embodiment as well, repeated description is avoided, but according to the present embodiment, the guide portion 3
0 is the air chamber 13 on the upper surface of the substrate portion 2 corresponding to the arrow-shaped portion 3.
It is integrally formed so as to project inward. The top portion of the guide portion 30 is configured to have a substantially groove-shaped cross section by the two protrusions 31 and 31 formed so that the slopes face each other. Therefore, as shown in FIG.
As shown in FIG. 3, when the fin R is pressed by the roller R or the finger F to insert the arrow-shaped portion 3, even if the position of the roller R or the finger F is slightly deviated, Guided by, the pressing force is concentrated in the center and is inserted effectively. When pressing and inserting with fingers, the protrusions 31, 31
Since is protruding from other portions, the position of the protrusion, that is, the position of the arrow-shaped portion 3 can be easily confirmed even from above the third fin 9. Therefore, the guide portion 30 of this embodiment also functions as a pressing instruction portion that indicates the position where the arrow-shaped portion 3 is pressed. According to the present embodiment, the guide portion 30 has the third fin 9
The guide portion 30 does not impair the aesthetic effect because it is provided inside the. In addition, according to the present embodiment, since the bulging portion 8 of the first fin 5 is also displaced from the arrow-shaped portion 3, the fin overlapping in the fin pressing portion 15 is as shown in FIGS. As shown, only the third fin 9 has a substantially uniform thickness.

FIG. 8 shows another embodiment of the guide portion 30. According to the present embodiment, one of the protrusions 32 on the top of the guide portion 30 is independently provided in the air chamber 12, but the other protrusion is also used as the root 33 of the first fin 5. Has been done. The shape of the root 33 portion is formed symmetrically with that of the protrusion 32. Also according to this embodiment, FIG.
It is clear that the same action and effect as the example shown in (3) are achieved. Therefore, its operating state is shown in FIGS.
No duplicate explanation will be given. Also in this embodiment, the fins overlap in the fin pressing portion 15 only in the first and third fins 5 and 9, and have a substantially uniform thickness as shown in FIGS.

11 (a), (b), (c), (d)
Shows various different embodiments of the guide portion 30. That is, the guide portion 30 shown in (a)
Is thick and cut in a V shape in the longitudinal direction to form a guide groove 34. Since it is cut into a V shape, its slope acts as a guide.
The embodiment shown in (b) is also the same as the embodiment shown in (a) in that it has the guide surfaces 35, 35, but it is different in that the groove reaches the substrate portion 1 deeply. are doing. The embodiment shown in (c) is the guide groove 3
The cross section of 6 has an arc shape. In FIG. 11D,
The guide portion 30 has a single protrusion 37 and the base 3 of the first fin 5.
An example formed with 8 and 8 is shown. This embodiment differs from the embodiment of FIG. 8 in that the root 38 of the fin acts as a guide on the right side in the figure. It is obvious that these guide portions 30 have the same effects as the guide portions shown in FIGS. 5 and 8 described above. Further, it is clear that the guide surface or the guide groove can be implemented in other shapes, and can be implemented in various combinations with the fin root. Although not shown in the drawing, it is also clear that these guide portions 30 are formed in the air chamber.

The guide portion 30 functions as a guide when the fin pressing portion 15 is pushed by a roller or a finger to push and insert the arrow-shaped portion 3 into the groove portion 21 of the door frame 20.
Since the guide portion 30 partially protrudes outward from the flat base plate portion 1, it essentially has a function of instructing a position when pressing. Therefore, although the embodiment of the guide portion 30 described above is also an embodiment of the pressing instruction portion, FIG. 11E shows an example in which the pressing instruction portion is implemented by the single projecting portion 39.

[0018]

As described above in detail, according to the present invention,
Since the magnetic body is provided at a position offset from the fin pressing part above the arrow-shaped part, when the fin-shaped pressing part above the arrow-shaped part is pressed to insert the arrow-shaped part into the groove part of the door frame, The pressing force can be applied directly from above. Moreover, since the fins overlap each other in the fin pressing portion to have a substantially uniform thickness, the pressing force is concentrated and transmitted to the arrow-shaped portion, and the arrow-shaped portion is reliably inserted into the groove portion with a small pressing force. Therefore, according to the present invention, it is possible to obtain the effect peculiar to the present invention that the workability when pressing and inserting with a finger is improved and the mechanization can be easily achieved. According to the invention as set forth in claim 2, since the air chamber is formed with the guide portion projecting into the air chamber corresponding to the arrow-shaped portion, in addition to the above effect, the arrow-shaped portion can be surely provided through the guide portion. The effect that it can be inserted into the groove is obtained. According to the third aspect of the present invention, the top of the guide portion is formed so that its cross section has a substantially groove shape. Therefore, when the arrow-shaped portion is inserted into the groove portion of the door frame by the mounting tool, for example, the roller, Even if the position is slightly displaced, the groove shape guides the sagittal portion substantially right above the sagittal portion, and the insertion pressing force is further concentrated in the central portion of the sagittal portion. Therefore, the door gasket can be mechanically attached. Even when pressing and inserting with a human finger, the top of the guide can be sensed with the feeling of a finger, and it can be inserted at a right angle from right above the arrow-shaped part with a light pressing force, and the workability of installing the door gasket is improved. improves.

[Brief description of drawings]

1A is a sectional view showing a first embodiment of a door gasket according to the present invention, and FIG. 1B is a sectional view showing an example of a door frame.

FIG. 2 is a cross-sectional view of an essential part showing a working state of the embodiment shown in FIG. 1 at the time of mounting.

FIG. 3 is a sectional view showing an essential part of a second embodiment of the door gasket according to the present invention.

FIG. 4 is a cross-sectional view of essential parts showing an operating state during mounting of the embodiment shown in FIG.

FIG. 5 is a sectional view showing an essential part of a third embodiment of the door gasket according to the present invention.

FIG. 6 is a cross-sectional view of essential parts showing an operating state during mounting of the embodiment shown in FIG.

FIG. 7 is a cross-sectional view of an essential part showing another working state of the embodiment shown in FIG. 5 at the time of attachment.

FIG. 8 is a sectional view showing a main part of another embodiment of the guide portion of the door gasket according to the present invention.

FIG. 9 is a cross-sectional view of essential parts showing an operating state during attachment of the embodiment shown in FIG.

FIG. 10 is a cross-sectional view of a main part showing another operating state of the embodiment shown in FIG. 8 at the time of attachment.

FIG. 11 is a cross-sectional view showing a main part of another embodiment in which the guide portion or the pressing instruction portion of the door gasket according to the present invention is different.

FIG. 12 is a perspective view showing a conventional refrigerator.

13 is a sectional view taken along the line AA in FIG. 12, in which (a) is an enlarged sectional view and (b) is an enlarged sectional view of a door frame portion.

FIG. 14 is a cross-sectional view showing an operating state when a conventional door gasket is attached.

[Explanation of symbols]

1 Door Gasket 15 Fin Pressing Part 3 Arrow Shaped Part 20 Door Frame 5, 9 Fins 21 Groove Part 11 Magnet 30 Guide Part 12 Air Chamber

Claims (3)

(57) [Scope of utility model registration request] 1. A sagittal portion that is inserted into at least a groove portion of a door frame, a fin that forms an air chamber on the other side where the sagittal portion is provided , and the sagittal portion is similarly provided. Are
And a magnetic member provided on the other side of the side, by inserting the arrow shape portion in the groove of the door frame, a by which the door gasket adapted to be mounted to the door frame, the magnetic body Is biased from the fin pressing part above the arrow-shaped part.
It was together is provided at a position, the fins, when to press the fin pressing portion of the upper of the arrow-shaped portion for inserting the arrow shape portion in the groove of the door frame, the fin
A structure of a door gasket, characterized in that the fins are overlapped in the pressing portion to have a substantially uniform thickness . 2. The air chamber according to claim 1, wherein the air chamber has a pair of arrow-shaped portions.
Accordingly, a guide portion protruding into the air chamber is formed.
The structure of the door gasket. 3. The top portion of the guide portion according to claim 2,
Structure of door gasket section is formed to exhibit a substantially channel-shaped.