JPH116682A - Door opening-and-closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive easy opening and closing operation of a door by constructing a door support in a split type and pivoting engagement parts in a freely rotatable manner in an opening and closing device of a door for closing a machine chamber of a refrigerator. SOLUTION: This door opening-and-closing device comprises an angle 18 having an opening part 19 provided in each front face of both sides of a machine chamber 4, a support plate 24 pivoted on each inner side of both side walls of a door 21 and having an engagement face 26 at one end, a stepped part rearward of the engagement face 26 and a coupling hole 28 through the opening part 19 of the angle 18, and a support body 31 having a weight not more than one-fourths of the weight of the support plate 24 and connecting the coupling hole 28 of the support plate 24 and a freely rotatably pivoted guide plate 29. Thus, high operability of being capable of easily fixing the door in an open state and relieving the door is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for closing a machine room of a refrigerator.

[0002]

2. Description of the Related Art In recent years, a unit section as a machine room includes:
For inspection and cleaning of filters and electrical components
A door as a decorative plate is provided on the front surface. In a refrigerator such as a refrigerator, it has been necessary to provide customers with easy operations such as opening and closing and removing the door. Various inventions have been made to solve these problems. For example, there is Japanese Utility Model Publication No. 6-36459.

A conventional door opening / closing device will be described below with reference to FIG.
This will be described with reference to FIGS. 1 is a main body of the refrigerator, 2 is a machine room 4 in which the electrical unit 3 and the like are arranged.
And a base 9 in which a condenser unit comprising a condenser 6, a compressor 7 and a blower 8 provided with a filter 5 on the front side is installed. Reference numeral 10 denotes an angle that extends in the front-rear direction on both sides of the unit portion 2 and that stands vertically in both sides and has an opening hole 10a. Reference numeral 11 denotes a reinforcing plate that supports the angle 10 and extends in the width direction. 12
Is a door as a decorative plate covering the front surface of the unit portion 2 and is pivotally supported by the angle 10. 13 is a side wall of the door 12, 14 is a support, has a locking groove 15 below, and a side wall 1 of the door 12 through an opening 10a of the angle 10.
3 rotatably supported. A strike 16 is inserted and fixed to the front surface of the angle 10. 17
Is a latch, which is inserted into the lower part of the rear surface of the door 12.

The operation of the door opening / closing device configured as described above will be described below.

[0005] First, the door 12 is rotatably supported on the side wall 13 of the door 12, and a supporting body 14 is provided in the unit 2 through the opening 10 a of the angle 10. At the time, the door 12 pivots around a portion pivotally supported by the angle 10 and when lifted upward,
While holding the support 14 at the lower surface of the opening 10 a of the angle 10, the support 14 is moved upward, and the locking groove 15 provided in the lower direction of the support 14 is engaged with the opening 10 a of the angle 10.
When the support 14 comes to the position, since the support 14 is applied with a downward force by its own weight, it falls down, fits into the opening 10a, can support and fix the door 12, and can be closed. At the time, the supporter 14 is lifted while gripping the door 12, a portion fitted into the opening 10 a of the angle 10 is removed, and the door 12 is lowered downward, so that the supporter 14 is inserted into the unit 2. Fits. The lower part of the door 12 is fixed at the door 12
When the door is in close contact with the main body, the latch 17 inserted at the lower portion of the back surface of the door 12 is locked by the strike 16 inserted and fixed to the front surface of the angle 10. By pulling the door 12 upward from the front, the strike 16 and the latch 1
7 comes off.

[0006]

However, in the above-mentioned conventional structure, when closing the door 12, the support 14 is lifted while the door 12 is being gripped, and the locking groove 15 is moved to the angle 1 position.
Since the filter 5 has to be removed from the opening 10a, there is a drawback that the user is very inconvenient when cleaning the filter 5 and the like.

In the above-described conventional configuration, the door 12 can be fixed when it is opened. However, when the door 12 is detached and attached by a service or the like, a hinge or the like fixing the door 12 must be removed. However, there is a disadvantage that the detachability of the door 12 is poor.

The present invention solves the conventional problems,
It is an object of the present invention to provide a door opening / closing device that can facilitate opening / closing of a door by dividing a support of the door and pivotally supporting a locking portion.

Another object of the present invention is to provide a holder having L-shaped insertion grooves on both sides of the door and U-shaped insertion grooves on the side surfaces thereof, which are inclined forward and downward at both ends of the reinforcing plate on the upper front surface of the angle. An object of the present invention is to be able to easily cope with the attachment and detachment of a door by being fitted from above into a support pin having a locking portion of a support member provided with an inclined portion.

[0010]

In order to achieve this object, the present invention provides a support member for holding the door open and closed, a support plate having one end rotatably supported inside the both side walls of the door, and the support plate. A guide plate formed with a weight of 1/4 or less of the plate is used as a support which is rotatably supported by one end of the support plate and connected thereto.

[0011] This makes it easy to open and close the door. A support plate rotatably supported at one end inside a side wall of the door, and a locking surface protruding downward from a contact surface abutting on a locking surface of the support plate; 1 /
A guide plate having a weight of 4 or less is provided as a support which is rotatably supported on one end of the support plate and connected thereto.

With this arrangement, when the door is opened and closed, the engaging surface of the guide plate abuts on the opening of the angle, the support plate can be operated reliably, and the support is smoothly stored so as not to be caught by the opening. Can be.

[0013] The support portion of the door may be provided with an L-shaped support member having a sloped portion inclined forward and downward, a front closing surface, and a support pin having a locking portion at one end flange. A holder having a U-shaped fitting groove is fitted from above, and the fitting part is used as a fulcrum to form a rotating door.

[0014] Thus, the main body of the door can be opened and closed about the support portion on the main body side, and the door can be lifted upward and easily detached.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that an angle having openings provided on both side surfaces of a machine room and a door rotatably supported inside the both side walls of the door, A support plate having a locking surface at one end, a step on the main body side from the locking surface, and a connection hole, and a weight of １ ／ or less of the support plate, through the opening of the angle; A door provided with a support connecting the connection hole and a guide plate rotatably supported, wherein the support is rotatably supported by the support plate and the guide plate. When the door is lifted, the support plate of the support is lifted through the opening of the angle while abutting on the lower end of the opening. The support plate is heavier than the guide plate, and the guide plate is Since the portion supporting the plate is at the rear, the support plate falls by its own weight, and the door can be fixed. .

Further, when the door is lifted, the support is lifted, and when the guide plate exceeds the opening, the guide plate weighs less than 1/4 of the support plate. The support plate and the guide plate come into contact with each other and are in a straight state. At that time, when the door is moved downward, the guide plate and the support plate go over the opening and the support fits into the main body side, so while holding the door, the door can be opened and closed without removing the support from the angle opening. It becomes possible to do.

According to a second aspect of the present invention, there is provided a support plate rotatably supported inside a door, the width of the support plate being slightly larger than that of the support plate, and the width being lower than the support plate. A guide plate provided with a protruding latching surface and a door having a support rotatably supported on a guide plate, wherein the width of the guide plate is increased downward from the support plate to provide a latching surface. When the door is open, the guide plate is lifted up on the lower surface of the opening of the angle, and the support plate is easily dropped downward. When the door is closed, the guide plate projects downward from the support plate, so that the support plate does not catch on the opening of the angle, so that the operation of the support member can be smoothly and reliably performed. It becomes possible.

According to a third aspect of the present invention, there is provided an inclined portion inclined forward and downward at both ends of an upper front surface of a widthwise extending reinforcing plate for supporting angles provided on both side surfaces of a machine room. A supporting member having a front closing surface, a supporting pin having a locking portion at one end flange, and a holder having an L-shaped side surface and a U-shaped fitting groove on the upper inner surface on both sides of the door. A door provided with a locking portion of the support member, the fitting pin of the holder is fitted into the supporting pin from above, and the fitted portion is a fulcrum. When the door is in the closed state, since the fitting groove of the holder provided on the door is downward, the door can be lifted upward and removed,
It is possible to easily open and close the door and detach it.

(Embodiment 1) FIG. 1 is a side sectional view of a main part of a door opening / closing device according to Embodiment 1 of the present invention. FIG. 2 is an enlarged sectional view of a main part of the door opening / closing device according to the embodiment. FIG. 3 is a perspective view of the door opening and closing device of the embodiment.

1, 2 and 3, reference numeral 1 denotes a main body of the refrigerator, 2 denotes a unit portion, and an angle 1 which is erected in the upper and lower directions on both sides of the unit portion 2 and erected in the upper and lower directions on both sides.
At 8, an opening 19 is provided and a strike 20 is inserted and fixed below. The angle 18 is fixed to the main body 1 with screws or the like.
It is stuck to. 21 covers the front of the unit 2
The door is pivotally supported by the angle 18 and a latch 22 is provided at a lower portion of the back surface. 23 is a side wall of the door,
On both sides. A support plate 24 has a mounting hole 25 at one end, a locking surface 26 at one end, and a step 27 and a connection hole 28 behind the locking surface 26. Reference numeral 29 denotes a guide plate which has a contact surface 30 which abuts the locking surface 26 of the support plate 24 at a weight of 以下 or less of the support plate 24, through a connection hole 28 of the support plate 24, A supporting body 31 is connected to be rotatably supported by the shaft, and
The door 21 is rotatably mounted on the side wall 23 of the door 21 through a mounting hole of the support plate 24 through the opening 19.

The operation of the door opening / closing device configured as described above will be described below. The support 31 rotatably provided on the side wall 23 of the door 21 is received in the unit 2 via the opening 19 of the angle 18, and the latch 22 provided on the door 21 is provided on the angle 18. The strike 20 is fitted and fixed. When opening the door 21, the user grips the door 21 and pulls it upward.

Thus, the strike 20 and the latch 22
When the door 21 is rotated upward,
The support 31 moves by contacting the lower end of the opening 19 of the angle 18, and when reaching the position beyond the opening 19 of the angle 18, the support plate 24 of the support 31 Since the weight of the support plate 24 is 1/4 or less, and the portion of the support plate 24 that supports the guide plate 29 from the locking surface 26 is at the rear, the guide plate 29 is lowered by its own weight.
9 corresponds to the end face of the opening 19 and rises upward,
The locking surface 26 of the support plate 24 is located below the opening 19, and the support plate 24 is fixed by the weight of the door 21, and the door is opened.

Further, at the time of closing, the guide plate 29 is lowered by its own weight, and the contact surface 30 of the guide plate 29 comes into contact with the locking surface 26 of the support plate 24, so that the support plate 24 and the guide plate 29 are straight. State. When the door 21 is moved downward in this state, the position where the support plate 24 and the guide plate 29 are pivotally supported becomes
Because it is located behind the locking surface 26 of the support plate 24,
Since the guide plate 29 is applied with a downward force, the opening 1 of the angle 18 remains in a straight state with the support plate 24.
9, the support 31 is inserted into the machine room 4,
The latch 22 provided on the door 21 is locked by the strike 20 provided on the angle 18, and the door 21 can be closed.

As described above, the door opening / closing device according to the present embodiment is rotatably supported by the inside of both side walls of the door 21, and has the locking surface 26 at one end through the opening 19 of the angle 18. A support plate 24 having a step 27 on the main body side with respect to the locking surface 26 and a connection hole 28, and pivoting with respect to the connection hole 28 of the support plate 24 with a weight of 1/4 or less of the support plate 24. The guide plate 29 is supported by a door 21 having a support 31 connected to the support plate 31. The support 31 is supported by the support plate 24 and the guide plate 29 is rotatably supported by the support plate. Door 21
Can be easily opened and closed.

(Embodiment 2) FIG. 4 is a side sectional view of a main part of a door opening / closing device according to Embodiment 2 of the present invention. FIG. 5 is an enlarged side view of a main part of the door opening operation of the door opening and closing device of the embodiment. FIG. 6 is an enlarged side view of a main part of the door opening / closing device of the embodiment when the door is opened. FIG. 7 is an enlarged side view of a main part of a door closing operation of the door opening and closing device of the embodiment.

4, 5, 6, and 7, reference numeral 32 denotes a door for covering the front surface of the unit 2, and reference numeral 33 denotes a door.
The second side wall is fixed to both side surfaces of the door 32. A support plate 34 has a mounting hole 35 at one end and a locking surface 36 at one end.
And a step 37 and a connecting hole 38 behind the locking surface 36. 39 is a guide plate, one of the support plates 34
At a weight of ４ or less, a contact surface 40 that abuts on the locking surface 36 of the support plate 34 and a latch surface 41 that is larger than the width of the support plate 34 and protrudes downward from the contact surface 40. Have
The support plate 34 and the guide plate 39 are connected to the support plate 34
The support member 42 which is rotatably supported and connected via the connection hole 38 is formed through the opening 19 of the angle 18.
It is rotatably attached to a side wall 33 of the door 32 by a mounting hole 35 of a support plate 34.

The operation of the door opening / closing device configured as described above will be described below. When the door 32 is rotated upward, the support plate 34 of the support 42
8 through the opening 19 of the guide plate 39, the lower surface of the angle 18 is brought into contact with the engaging surface 41 of the guide plate 39, and the guide plate 39
Moves upward, the support plate 34 is lowered by its own weight, and the locking surface 36 of the support plate 34 abuts against the lower surface of the opening 19 of the angle 18 to fix the door 32.

When the door 32 is lifted upward in this state, the support plate 42 is lifted and the guide plate 39 is lowered, and the guide plate 39 is brought into contact with the locking surface 36 of the support plate 34.
Contacts the lower end of the opening 19 of the angle 18. At this time, the width of the support plate 34 is shorter than the guide plate 39 and is located inside the support plate 34.
Without being caught on the end face of the opening 19 of the support member 42.
Can be stored in the unit 2.

As described above, the door opening / closing device according to the present embodiment uses the support plate 3 with a weight of １ ／ or less of the support plate 34.
4 is slightly larger than the width of the locking surface 3 of the support plate 34.
A guide plate 39 having a hooking surface 41 protruding downward from a portion abutting on the guide plate 6, and a door 32 having a support body 42 rotatably supporting and connecting the support plate 34. ,
By making the width of the guide plate 39 slightly larger than the support plate 34 and providing the locking surface 41 in the downward direction, the support plate 34 can be securely locked, and the guide plate 39 can be smoothly held without being caught in the opening 19 of the angle 18. Operation can be performed.

(Embodiment 3) FIG. 8 is a side sectional view of a main part of a door opening and closing device according to Embodiment 3 of the present invention. FIG. 9 is an enlarged side sectional view of a main part of the door opening / closing device of the embodiment. FIG. 10 is a perspective view of a main part of the door opening and closing device of the embodiment.

8, 9 and 10, reference numeral 43 denotes a refrigerator main body, 44 denotes a heat insulating wall, 45 denotes a machine room, and a condenser provided on the heat insulating wall 44 and having a front filter 46. 47. Numerals 48 are angles provided on both side surfaces of the machine room 45, and are erected vertically on both sides of the main body 43, and extend in the front-rear direction and are fixed to the main body 43 with screws or the like.

The reference numeral 49 extends in the width direction at the upper part of the front surface of the angle 48, and is fixed to the angle 48 with screws or the like. Reference numeral 50 denotes a support member, and an inclined portion 51 inclined forward and downward.
, A closing surface 52, and a support pin 54 having a locking portion 53 on one end flange, and are provided at both ends of the reinforcing plate 49. Reference numeral 55 denotes a door, which is provided on the front face of the filter 46 facing the same. Reference numeral 56 denotes a holder having a U-shaped fitting groove 57, which is fixed to the inside of the upper portion on both sides of the door 55.

The operation of the thus configured door opening / closing device will be described below. The U-shaped fitting groove 57 of the holder 56 fixed to the upper inside of both sides of the door 55 is inserted into the support pin 5 having the locking portion 53 of the support member 50.
4 from above, and the door 55 is
Rotates. Since the closing surface 52 of the support member 50 is on the rotation direction side, the U-shaped fitting groove 57 of the holder 56 of the door 55 is provided.
However, it does not come off from the support pin 54. A latch 58 as a fixing means at the lower portion of the door 55 and a strike 59
As shown in FIG. 7, the latch 58 is attached to the lower portion of the back surface of the door 55, while the strike 59 is inserted and fixed in a mounting hole formed in the front surface of the angle 48. When it comes into close contact with the main body, the strike 59 is locked by the latch 58. The user can use the filter
When cleaning 46, the door 55 is pulled upward from the front.

Thus, the strike 59 and the latch 58
As the door 55 is removed, the door 55 is pivoted about the portion of the holder 56 in which the U-shaped insertion groove 57 is inserted into the support pin 54 of the support member 50 as a fulcrum, and is lifted upward. Door 5
5 with the latch 58 and strike 59 removed,
By lifting the 5 upward, the U-shaped fitting groove 57 of the holder 56 fixed to the door 55 is released from the support pin 54 of the support member 50, and the door 55 can be removed.
If the operation is performed in the reverse order, the door 55 can be mounted.

As described above, the door opening / closing device according to the present embodiment includes the inclined portion 51 inclined forward and downward and the closing surface 52.
A support member 50 provided with a support pin 54 having a locking portion 53 at one end flange; and a door 55 provided with a holder 56 having a U-shaped fitting groove 57 inside the upper side of both sides of the door 55. And the U-shaped fitting groove 57 of the holder 56 provided in the door 55 is fitted into the support pin 54 of the support member 50, and the fitted portion is used as a fulcrum to rotate the door 55. Therefore, opening and closing and detaching of the door 55 can be easily performed.

[0036]

As described above, according to the present invention, the support for the door is divided into a support plate and a guide plate weighing 1/4 of the weight of the support plate. The door is fixed and released when the door is opened and closed.

Further, by making the width of the guide plate slightly larger in the lower direction than the width of the support plate and providing a hooking surface, the operation of the support can be surely and smoothly performed. It can be fixed and released easily and reliably.

[0038] A support member provided with a support pin having a locking portion on one end flange, a closing surface, a closing surface, and a U-shaped fitting groove is provided on the upper inside of both sides of the door. By providing a holder having the above, the U-shaped fitting groove of the holder is fitted into the support pin of the support member from above, and the door is rotated with the fitted portion as a fulcrum, so that the door is rotated. Opening / closing and detachment can be facilitated.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a main part of a first embodiment of a door opening / closing device according to the present invention.

FIG. 2 is an enlarged side sectional view of a main part of the door opening and closing device of the embodiment.

FIG. 3 is a perspective view of the door opening and closing device of the embodiment.

FIG. 4 is a side sectional view of a main part of a door opening / closing device according to a second embodiment of the present invention;

FIG. 5 is an enlarged side view of a main part of the door opening operation of the door opening / closing device according to the embodiment.

FIG. 6 is an enlarged side view of a main part of the door opening / closing device of the embodiment when the door is opened.

FIG. 7 is an enlarged side view of a main part of a door opening operation of the door opening / closing device of the embodiment.

FIG. 8 is a side sectional view of a main part of a door opening / closing device according to a third embodiment of the present invention;

FIG. 9 is an enlarged side sectional view of a main part of the door opening and closing device of the embodiment.

FIG. 10 is a perspective view of a main part of the door opening and closing device of the embodiment.

FIG. 11 is a side sectional view of a conventional refrigerator.

FIG. 12 is a perspective view of a conventional door opening / closing device.

FIG. 13 is a side sectional view of a main part of a conventional door opening / closing device.

[Explanation of symbols]

 18 Angle 19 Opening 21 Door 24 Support Plate 25 Mounting Hole 26 Locking Surface 27 Step 28 Connection Hole 29 Guide Plate 30 Contact Surface 31 Support 32 Door 34 Support Plate 35 Mounting Hole 36 Locking Surface 37 Step 38 Connection Hole 39 Guide plate 40 Contact surface 41 Hook surface 42 Support body 50 Support member 51 Inclined portion 52 Closed surface 53 Lock portion 54 Support pin 55 Door 56 Holder 57 U-shaped fitting groove

Claims (3)

[Claims] 1. A machine room formed on an upper part of a heat insulating wall constituting a main body of a refrigerator and accommodating a condenser and the like provided with a filter on a front surface, and openings provided on both front surfaces of the machine room. An angle, a door provided on a front surface facing the filter, and a pivotally rotatably supported inside of both side walls of the door, a locking surface at one end through an opening of the angle, and the locking surface. A support plate having a step and a connection hole on the main body side from a surface, and a contact surface that abuts a locking surface of the support plate with a weight of 1/4 or less of the support plate; A door opening / closing device, comprising: a connection hole formed by a supporting member; and a support provided with a guide plate rotatably supported by a shaft. 2. A support plate rotatably supported on the inside of both side walls of a door, and a latch projecting beyond a width of the support plate below a contact surface that comes into contact with a locking surface of the support plate. 2. The door opening and closing device according to claim 1, further comprising: a support member rotatably supporting a guide plate having a surface. 3. A machine room formed on an upper part of a heat insulating wall constituting a main body of the refrigerator, for storing a condenser or the like provided with a filter on the front side, and a width for supporting angles provided on both front sides of the machine room. At both ends of the front upper part of the reinforcing plate extending in the direction
An inclined surface inclined forward and downward, a closed surface on the front surface, a support member provided with a support pin having a locking portion on one end flange,
A holder having an L-shaped and U-shaped fitting groove on the side surface is provided on the upper inside of both sides of the door, and the fitting groove of the holder is moved upward to the support pin having the locking portion of the support member. A door opening / closing device comprising a door that is fitted into the door and that rotates about the fitted portion.