JPS6199084A - Door opening mechanism - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a door opening mechanism for a refrigerator, etc., which opens a case equipped with a magnetic gasket when a handle attached to the front surface of the door is pressed or the like. be.

[Background of the invention]

A well-known conventional door opening mechanism is insulation material (
Utilizing a torsion spring embedded in the torsion spring (Glass Urn), a constant opening force is obtained even though it is not equipped with a magnetic seal, the latch is released by pressing a button, and the opening force of the torsion spring is used to automatically open the rabbit. ] Is there something strained?

As mentioned earlier, this product is not only suitable for cases where magnetic packing is not used, but also requires latches, etc. in addition to torsion springs embedded in the insulation material, resulting in high travel costs. Regarding this kind of refrigerator, for example, there is Utility Model Application No. 56-49603.

[Purpose of the invention]

In order to improve the above-mentioned defects, the present invention has developed a door opening mechanism suitable for refrigerators equipped with magnetic gaskets.

[Summary of the invention]

That is, one end is pivoted near the door's pivot point, and the other end extends to near the opposite end of the hinge.A handle located on the front of the door is connected to the end of the operating rod, and a handle located on the front of the door is connected to the end of the operating rod. When a leg is provided and the operating rod is rotated by operating the handle, the leg comes into contact with the main body and attracts the magnetizing force of the magnetic packing and the locking piece provided on the door side to the main body side when the egg is closed. It is designed to break the door closing force and open the door at a predetermined angle.

[Embodiments of the invention]

The details of the present invention will be explained below with reference to an embodiment shown in the drawings.
2 is a refrigerator body, and 2 is a door that closes a front opening of an interior 3 formed inside the refrigerator body 1. This door 2 is provided with a magnet packing 4 containing a built-in magnet, and is closely attached to the front opening of the refrigerator body 1 with an adhesive force F1.

Reference numeral 5 denotes a hinge that pivots the door 2 to the main body 1 so as to be rotatable. Reference numeral 6 denotes an operating rod having one end fixed to a shaft 6a near the pivot point, and the other end extending to near the end on the side opposite to the hinge. 7 is a handle connected to the opposite end of the hinge. When the handle 7 is pushed in the direction of arrow P, the operating rod 6 moves once in the direction of arrow P about the shaft 6a. 8 is a leg provided on the operating rod 6I, and when the operating rod 6 is rotated, this leg 8 comes into contact with a receiving part 9 provided on the side of the main body 1, and the magnetic gasket at the tip of the handle push force F2 comes into contact with the leg 8. When the adhesion force F1 and the door closing force F4 of the drawing member, which will be described later, are overcome, n2 opens by θ degrees around the hinge 5 as shown by the broken line. 10 is a spring that is always working to open the door 2. However, the force F3 of the lever spring 10 trying to open the door 2 is smaller than the adhesion force F1 of the magnetic packing, so if the door is opened by 2 or θ degrees, the force F3 of the lever spring 10 trying to open the door 2 will not open. When the magnetizing force of the magnet gasket is lost), the door 2 is opened to a predetermined angle.

Here, the stroke L1 of the handle 7 and the variable dimensions of the legs 8 will be explained in detail with reference to FIG. This is a good reason, but as shown in the figure, the closer the leg 8 is to the shaft 6a, the smaller the amount that the leg 8 can change with the stroke L1 dimension of the handle 7 becomes smaller from L2 to L3. If this size becomes smaller, it becomes difficult to absorb assembly errors, etc., so it is necessary to take into consideration the relationship with the pushing force F2 of the handle, which will be described later.

Further, in order to reduce the pushing force F2 of the handle, the closer the position of the leg 8 is to the shaft 6a, the smaller the lever ratio can be, but the position is determined by itself for the reasons mentioned above.

The above-mentioned operating rod 6 and spring 10 are installed using the upper and lower surfaces of the door 2, and are made of foam insulation material (not shown) 11 is a locking piece attached to n2. This locking piece 11 is usually attached to the lower part of the door on the handle side. 12 is a locking piece attached to n2. In the embodiment in which the drawing member is attached to the main body side opposite to the stopper 11, it is a leaf spring.The leaf spring 12 is made into a corrugated shape as shown in FIGS. This is to draw the locking piece 11 into the state shown in Fig. 4.In other words, when moving from the state shown in Fig. 4 to Fig. 5, the drawing force F4 and the magnetizing force F1 of the magnetic packing described earlier are used. Combined Fi
Unless a force F2 (pushing force of the handle 7) is applied to overcome the 10 F1 48 force, the sin will not open at the specified angle.

In the opening mechanism having such a configuration, when a pushing force F2 is applied to the handle 7, the magnetizing force F1 of the seal and the closing force F4 of the leaf spring are overcome and the door opens to the position shown in FIG.

After this, the door is automatically opened to the set angle by the force of the leaf spring 12 and spring 10.

〔Effect of the invention〕

As explained above, the present invention has one end pivoted near the pivot point of the door, and a handle located on the front of the door connected to the other end or the end of the operating rod that extends to the opposite end of the hinge. A leg is provided in the middle of the operating rod, and when the handle is operated and the operating rod is rotated, the leg comes into contact with the main body, and the magnetizing force of the magnetic packing and the locking piece provided on the door side are used to close the door. Since the door is opened at a predetermined angle by breaking the door closing force of the drawing member drawn into the main body at the time of opening, the door can be opened at a predetermined angle with a minimum of handle operations.

In addition, this opening mechanism is advantageous in terms of cost since it requires no major changes to the conventional levers on the market (it is a simple mechanism that only requires an operating rod connected to a handle).

In addition, when the hinge is closed, the magnet is defeated by the magnetizing force of the magnet gasket provided on the inner periphery of the shaft, and when the hinge opens θ degrees around the hinge,
A spring is provided between the door and the main body to open the door against the magnetizing force of the magnet gasket.

Furthermore, since the locking piece provided on the door side is used to detect when the door is closed, the door is forced to open when the door is opened, which of course makes the opening process smoother. When the door is opened, the force of the spring that is constantly trying to open the door is reduced to some extent by this attracting member, thereby ensuring a stable door opening state.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a refrigerator equipped with a door opening/closing mechanism of the present invention;
Fig. 2 is a cross-sectional explanatory diagram of the main part of Fig. 1, Fig. 3 is an explanatory diagram of the operation, and Fig. 4 is 64 yen for ■ optic kidney ζ in Fig. 3. Fig. 5 is a - It is a figure showing the process of movement. 1... Refrigerator body, 2... Door, 3... Inside, 4...
... Magnet packing, 5... Hinge, 6...
Operating rod, 6a...shaft, 7...handle, 8...leg, 9...receiving part, 1°...spring, 11...locking piece,
12...Plate spring. '$+(2) $3 figure $4 (21 non-5C2]

Claims (1)

[Scope of Claims] 1. A handle located in front of the door is connected to the end of the operating rod, one end of which is pivoted near the door pivot point and the other end of which extends to near the opposite end of the hinge, and A leg is provided in the middle of the operating rod,
When the handle is operated and the operating rod is rotated, the above legs come into contact with the main body, and the magnetizing force of the magnetic packing and the door closing force of the drawing member that draws the locking piece provided on the door side towards the main body side when the door is closed. A door opening/closing mechanism characterized in that the door is opened at a predetermined angle by breaking through. 2. Claim 1, characterized in that the door is forcibly opened when the door is opened by using a drawing member that draws the locking piece provided on the door side into the main body side when the door is closed. Refrigerator as described. 3. When the door is closed, it loses the magnetizing force of the magnetic packing provided on the inner edge of the door, and when the door opens θ degrees around the hinge,
2. The door opening mechanism according to claim 1, wherein a spring is provided between the door and the main body to open the door against the magnetizing force of the magnetic packing.