JPH09243240A - Door hinge apparatus for ice making machine, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To moderate a shock upon a door being fully opened and prevent the door from returning back even when the door of an ice making machine is opened violently. SOLUTION: A lower hinge 7 is fixed to a side end lower surface of an ice making machine body 2, and one hinge pin 8 on the lower hinge 7 is fitted to a corner part lower surface of a side-open door 3 whereby the door 3 is supported on the body 2. A plate shaped spring 13 is fixed to a vertical wall surface 12 of the lower hinge 7, a curved end 14 of which is arranged in the direction where the door 3 is opened so that a distance between it and the hinge pin 8 is increased. A stopper pin 17 protruding downward from the corner part lower surface of the door 3 resiliently deforms the plate-shaped spring 13 in the direction of the hinge pin 8 as the door 3 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making machine, a refrigerator,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for a door of a storage or the like, and more particularly to a device for smoothing the closing operation of the door.

[0002]

2. Description of the Related Art A conventional hinge stopper for a door in a refrigerator or the like has a cushion member attached to the tip of a protruding portion of a refrigerator main body as described in Japanese Utility Model Laid-Open No. 54-56259, so that the door can be mounted around the hinge pin. When the door is wide open, the end surface of the door abuts the inclined part of the cushioning member to regulate the full-open angle of the door and reduce the impact when the door is fully open. In such a case, there is a possibility that the end face of the door may be rebounded toward the closing direction due to the recoil of the collision with the cushioning member. Therefore, it is inevitable that the opening operation of the door is limited to some extent.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to reduce the impact of the door when it is fully opened and to prevent the door from bouncing even when the door of an ice maker, refrigerator, storage, etc. is opened vigorously. An object of the present invention is to provide a door hinge device that can be used.

[0004]

Therefore, a door hinge device for an ice making machine or the like according to the present invention is a hinge pin for pivotally supporting an end portion of a door to a body of the ice making machine or the like, a stopper pin protruding from the door, and the body. Attached to the hinge pin and having a plate-shaped spring that is in contact with the peripheral surface of the stopper pin when the door is opened about the hinge pin and the door is opened. The stopper pin is formed so that its distance from the hinge pin increases along the direction in which the stopper pin is displaced.

Therefore, when the door is opened about the hinge pin, the stopper pin protruding from the door also rotates about the hinge pin, so that the door is opened when the peripheral surface of the stopper pin contacts the plate spring. If it is opened, the peripheral surface of the stopper pin, which is displaced as it is opened, presses the plate-shaped spring, and elastically deforms largely toward the hinge pin.Therefore, energy is absorbed as the door is opened, The impact acting on the door when the door is fully opened can be effectively mitigated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention shown in the drawings will be described below. In the automatic ice maker 1, the main body 2
The side-opening door 3 attached to the front of the vehicle has vertical concentric round holes at its upper and lower corners, respectively.
A hinge pin (not shown) extending below an upper hinge 4 fixed to the main body 2 is fitted in an upper round hole of the door 3.

On the other hand, as shown in FIG. 2, a lower hinge 7 having a substantially L-shaped cross section is detachably fixed to the lower surface of the side end of the main body 2 by means of a screw 6 which is inserted through a spring washer 5, and the lower hinge. 7 is provided with two hinge pins 8 extending upward at intervals in the front-rear direction of the main body 2, and one of the hinge pins 8 is inserted into a vinyl washer 9 and fitted into a lower round hole of the door 3. Thus, the door 3 is pivotally supported on the main body 2 so as to be openable and closable about the one hinge pin 8 as a center. The other hinge pin 8 is loosely fitted in a round hole 10 formed on the lower surface of the side end of the main body 2, and the lower hinge 7 has a symmetrical shape in the front-back direction of the main body 2 as can be seen from FIG. Are doing

The vertical wall surface 12 of the lower hinge 4 is fixed by the screw 11.
The plate-shaped spring 13 detachably fixed to the intermediate step portion 131 has a bent portion connected by a small arc surface, while the curved end portion 14 has a curved end portion 14 as shown in FIGS. 5 and 6. It is arranged around the one hinge pin 8 and is formed so that the distance to the hinge pin 8 gradually increases along the direction in which the door 3 is opened, and grease is applied to the outer peripheral surface of the curved end portion 14. And the bent portion 15 at the other end
Are inserted into one of two rows of square holes 16 provided in the lower hinge vertical wall surface 12.

A stopper pin 17 is provided on the lower surface of the corner portion of the door 3 so as to project downward in parallel with the hinge pin 8. The stopper pin 17 is provided on the stopper surface 18 of the lower hinge 4 when the door 3 is opened. Is reached, the fully open angle of the door 3 is regulated. Incidentally, 19 is a leg portion of the main body 2.

When the door 3 which has closed the front surface of the main body 2 is opened around the upper and lower hinge pins, the stopper pin 17 is also rotated from the solid line position in FIG. 7 around the hinge pin 8 in the direction of the arrow. As described above, the curved end portion 14 of the plate spring 13 is formed so that the distance from the hinge pin 8 gradually increases along the direction in which the stopper pin 17 is displaced. Since the distance from 17 remains constant,
As shown by the two-dot chain lines in FIG. 7, the peripheral surface of the stopper pin 17 first comes into contact with the outer peripheral surface of the curved end portion 14 at the position 171, and further the peripheral surface of the stopper pin 17 as the door 3 is opened. While sliding on the outer peripheral surface of the curved end portion 14, the curved end portion 14 is pressed toward the hinge pin 8 to elastically largely deform the curved end portion 14, and the stopper pin 17 becomes the stopper surface 18. It hits and reaches the position 172, and the door 3 is fully opened.

That is, while the door 3 is being greatly opened, the peripheral surface of the stopper pin 17 elastically deforms the curved end portion 14 for a relatively long time, so that the release speed of the door 3 is increased. Since the elastic deformation is appropriately suppressed by the continuous elastic deformation of the portion 14, the door opening sensation can be softened and the feeling thereof can be improved, while the stopper pin 17 reaches the stopper surface 18 of the lower hinge 7. When fully opened, the impact force acting on the door 3 from the lower hinge 7 can be easily minimized,
The risk of damaging the door 3 and the like can be eliminated, and it is possible to reliably prevent the door 3 from being recoiled in the closing direction as in the conventional case. Therefore, the operation feeling of the door 3 can be improved and the ice making machine 1 The commercial value of can be easily increased.

The lower hinge 7 has a symmetrical shape in the front-rear direction of the main body 2, and is constructed so that it can be detachably fixed to the lower surface of the left and right side ends of the main body 2 with screws 6. Since the plate spring 13 is configured to be detachably fixed to the vertical wall surface 12 of the lower hinge 7 with the screw 11, the lower hinge 7 should be detachably fixed to either the left or right side end lower surface of the main body 2. As a result, the lower hinge 7 can be used in common with the left side-opening door or right side-opening door ice making machine, so that the number of parts and parts management man-hours for different models can be reduced by that much, and the product cost can be simplified. There is an advantage that can be reduced.

In the above embodiment, a hinge pin is provided on the lower hinge fixed to the main body of the ice making machine, and the hinge pin is fitted into the lower surface of the door. The hinge pin may be projected downward from the lower surface of the door and fitted into the hinge hole of the lower hinge fixed to the body of the ice making machine, and the present invention is not limited to the ice making machine, but may be a refrigerator, a freezer, a storage, a showcase. It is needless to say that the same effects can be obtained by implementing the same in the above devices.

[0014]

In the door hinge device of the ice making machine according to the present invention, as the door is opened around the hinge pin, the peripheral surface of the stopper pin protruding from the door presses the plate spring, and the plate spring is pressed. By absorbing the kinetic energy of the door by elastically deforming, it is possible to soften the feeling of opening the door and improve the feeling, while effectively relaxing the impact acting on the door when the door is fully opened, There is an advantage that the maintenance around the door is good and the reaction for the sudden door opening can be easily stopped.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the above embodiment.

FIG. 3 is a partially enlarged perspective view of the embodiment described above.

FIG. 4 is a partially enlarged perspective view of the embodiment example.

FIG. 5 is an enlarged perspective view of a main part of the above embodiment.

FIG. 6 is an enlarged view taken along the line VI-VI in FIG. 5;

FIG. 7 is an operation explanatory view of the embodiment.

[Explanation of symbols]

 1 Automatic Ice Machine 2 Main Body 3 Door 7 Lower Hinge 8 Hinge Pin 13 Plate Spring 14 Curved End 17 Stopper Pin 18 Stopper Surface

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyuki Sanada 3-16, South Building, Sakaemachi, Toyoake-shi, Aichi Hoshizaki Electric Co., Ltd.

Claims (2)

[Claims] 1. A hinge pin for pivotally supporting an end portion of a door on a body of an ice making machine, a stopper pin protruding from the door, a door mounted on the body and arranged around the hinge pin, and the door centering around the hinge pin. When the door is opened, the stopper pin has a plate-shaped spring with which the peripheral surface of the plate comes into contact. The plate-shaped spring increases the distance from the hinge pin along the direction in which the door is opened and the stopper pin is displaced. Door hinge device for ice machine etc. 2. The hinge pin according to claim 1, wherein the hinge pin is formed on a hinge that is detachably attached to the main body.
A door hinge device such as an ice maker, in which two plate springs are removably attached to the hinge, while two are provided at intervals in the front-rear direction of the main body.