JPH0594684U - Door opener - Google Patents

Abstract

(57) [Summary] [Purpose] A door opening / closing device for the purpose of facilitating the work of mounting the door located on the upper part of the main body. [Mechanism] A machine room 4 which is formed on an upper portion of a heat insulating wall 3 which constitutes a main body of a refrigerator 1 and which houses a condenser 9 and the like having a filter 10 on the front surface thereof, and which are provided on both left and right side surfaces of the machine room 4. And a pair of left and right side walls 6, a door 8 provided on the front surface facing the filter 10 and rotating upward, a main portion 26 extending rearward from an upper portion of the door 8, and the main portion. 26
And a rear member 27 that is narrower than the main portion 26 and that is provided at the front upper portion of the machine chamber 4 and that is wider than the rear member 27 and narrower than the main portion 26. A door opening / closing device comprising:

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a door opening / closing device that closes a machine room of a refrigerator.

[0002]

[Prior Art]

 As a prior art prior to the present invention, Japanese Utility Model Publication No. 54-125068 discloses a machine room having an upper surface and a rear surface which are defined by left and right side walls and a front door on the upper part of a refrigerator body. A condenser unit composed of a condenser, a compressor and a blower is installed in this machine room to take in air from the passage formed in the door and promote heat dissipation of the condenser unit.

[0003]

[Problems to be solved by the device]

 The doors are attached to both the left and right side walls so that they can be removed for cleaning the filter located in front of the condenser or for maintenance of the condensation unit. Since it is done with screws and other fasteners, not only is it time-consuming to install the door located at the top of the main unit, but also when cleaning the filter, the door must be removed and the door must be removed. The work was also laborious.

The present invention has been made in view of the above-mentioned problems, and is an opening / closing device for a door, which is intended to facilitate the work of installing the door located at the upper part of the main body.

[0005]

[Means for Solving the Problems]

 As a means for achieving the above object, the present invention provides a machine room for accommodating a condenser or the like which is formed on an upper part of a heat insulating wall which constitutes a main body of a refrigerator and which is provided with a filter on a front surface, and a machine room for the machine room. A pair of left and right side walls provided on both left and right sides, an upwardly rotatable door provided on the front surface facing the filter, a main part extending rearward from an upper portion of the door, A rear member that extends downward from the main portion, is narrower than at least the main portion, and an opening that is provided on the upper front side of the machine chamber and that is wider than the rear member and narrower than the main portion. The present invention provides a door opening / closing device.

[0006]

[Action]

 According to the present invention, the main part extending rearward from the upper part of the door and the rear member extending downward from the main part and narrower than the width of the opening formed in the upper part of the machine room are provided. The rear member penetrates the opening, but the main part hangs on the edge of the opening, and when the door is opened, it rotates about the connection between the main part and the rear member as a fulcrum.

Further, when the door is removed, since only the rear member penetrates the opening, the door can be removed only by removing the rear member from the opening.

[0008]

【Example】

 (1) shown in FIGS. 1 to 3 is a refrigerator whose main body is composed of a heat insulating wall (3) having a plurality of heat insulating doors (2) on the front surface, and cools the inside of the refrigerator to a predetermined temperature although not shown. Equipped with a cooler. (4) is a machine room which is formed in the upper part of the heat insulating wall (3) constituting the main body and has an open upper surface, which is erected on both left and right side walls on the heat insulating wall and is mutually supported by beams (5). A pair of left and right metal side walls (6) (6) connected to each other, and a metal door (8) arranged on the upper surface of the heat insulating wall and having a passage (7) for guiding air to a condensing unit described later. A condenser (9) which is defined and has a filter (10) on the front surface, a base (11) in which a condenser unit (not shown) including a compressor and a blower is installed, and an electrical equipment box (12) are housed. There is.

The left and right side walls each have a vertical front flange (13) and a horizontal upper flange (14), and a catcher (fixing portion) described below is provided under the front flange (13). Strikes (closures) (15) that make a pair and close the lower part of the door (8) are provided, and an opening (16) is formed in the front part of the upper surface flange (14) and downward from the vicinity of the front edge of this opening. It forms a hanging engagement protrusion (17). The door is composed of a pair of right and left columns (18) and (18) and two upper and lower plates (19) and (20) supported by the columns. A passage (7) is formed so as to be separated from each other, and a catcher (21) capable of holding a strike (15) is provided on the back surface of the column (18), and a folded portion (22) of the lower plate (20). In the longitudinal direction, a large number of holes (23) are formed as air passages. Reference numeral (24) is a pair of left and right metal engaging arms fixed to the upper surfaces of the both columns, and overlaps with the upper surface flanges (14) of the side walls, and as shown in FIG. 25) forming a main part (26), a rear member (27) penetrating an opening (16) inclined rearward and downward from a rear end of the main part (26), and a lower end of the rear member (27). And an engaging portion (28) that slopes downward from the front to face the engaging protrusion. The relation among the opening, the main portion and the rear member is b> c> a. (29) is a rubber-made cushioning material fixed to the rear member (27), which comes into contact with the engaging projection (17) when the door (8) is closed, and relaxes the vibration of the condensing unit to engage. Preventing noise generation by the arm (24). Reference numeral (30) is a rod-shaped stopper for maintaining the door open state of the door (8) by arranging the door (8) and the upper part of the heat insulation wall (3). It is supported by a stopper (32) fixed to the base (11) so as to be vertically rotatable, and the other end bent portion (33) is inserted and engaged with the hole (23) of the door. . When the door (8) is closed, this stopper is kept horizontal by a holder (34) as shown by the dashed line in FIG. 51 and is stored in the machine room (4).

Next, the installation of the door (8) will be described. As shown in FIG. 1, after the door (8) is inclined upward and downward, the door (8) is lifted above the side walls (6) and (6), The door (8) is lowered in the direction of arrow A so that the action portions (25) and (25) of the engagement arms (24) and (24) are brought into contact with the upper surface flange (14), and the rear member (27) and the engagement portion are engaged. Position (28) below the top flange (14) through the opening (16) as shown in FIG. 6 (a). In this state, the catcher (21) is in contact with the strike (15) due to the weight of the door (8), and by pushing the door (8) backward, the catcher (21) strikes as shown in FIG. (15) is clamped, the main part (26) abuts and overlaps with the upper surface of the upper surface flange (14), and the door (8) is vertically supported and is in a closed state. The door (8) can be removed by operating in the reverse order.

When the door (8) thus mounted is opened, the door (8) is swung upward so that the catcher (21) is disengaged from the strike (15). With this rotation, as shown in FIG. 6 (b), the action portions (25) and (25) slide rearward on the upper surface flange (14) with the fulcrum, and the engagement portion (28) moves to the engagement projection ( It approaches 17) gradually. By continuing the rotation for a while, the rotation angle becomes larger, and the upper and lower surfaces of the inclined portion (27) move backward in the opening (16) while the upper and lower surfaces thereof are reversed to engage with each other as shown in FIG. 6 (C). The rotation of the door (8) is restricted by the engagement of the portion (28) with the engagement protrusion (17). In this opened door (8), the stopper (30) is removed from the holder (34) and the bent portion (33) of the stopper (30) is inserted into the hole (23) of the door (8). By engaging, the stopper (30) is arranged so as to straddle between the door (8) and the upper portion of the heat insulating wall (3), and the door (8) can be supported at a predetermined angle.

According to this structure, by inserting the rear member (27) of the engaging arm (24) into the opening (16), the engaging arm (24) becomes the left and right side walls (6) and (6). It serves as a connecting member for connecting and connecting the door (8), and when the door (8) is opened, it acts as a rotating member, and as the door (8) is rotated upward, the engaging arm (24) rotates upward to increase the angle between the main part (26) and the upper surface flange (14), and the action parts (25) and (25) slide on the upper surface flange (14) while serving as a fulcrum. Then, the rear member (27) moves in the opening (16) in accordance with this sliding to reverse the upper and lower surfaces thereof, and the engaging portion (28) approaches the engaging protrusion (17) and is engaged. Rotation of the door (8) in the upward direction is restricted, and the door (8) is rotated at a predetermined angle by the stopper (30). It can be supported in an open state.

Therefore, in the structure in which the machine room (4) is formed above the main body, cleaning of the filter (10) and maintenance and inspection of the condensing unit become very easy. In the above embodiment, the hole (23) serving as the ventilation path formed in the door (8) also serves as the engaging portion into which the bent portion (33) of the rod-shaped stopper (30) is inserted and engaged. Therefore, it is excellent in that it is not necessary to configure engaging means dedicated to the stopper (30).

[0014]

[Effect of the device]

 As described above, according to the present invention, when the door provided on the front surface of the machine room facing the filter is rotated upward, the main portion contacts the edge of the opening through which the rear member penetrates. They come into contact with each other and rotate about this contact portion, that is, the acting portion as a fulcrum. Then, when the door is closed, the machine room is closed by rotating downward with the working part as a fulcrum.

Further, when the door is removed, only the rear member penetrates the opening, and the rear member is bent downward. Therefore, only removing the rear member from the opening. You can remove the door with. In this way, the door can be easily opened and closed, and the door can be easily attached and detached. Therefore, maintenance and inspection and cleaning of the filter can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a refrigerator with a door removed.

FIG. 2 is a longitudinal sectional view of a main part.

FIG. 3 is a perspective view when a door is opened.

FIG. 4 is an exploded perspective view of a main part.

FIG. 5 is an enlarged view of a main part when the door is opened.

FIG. 6 is an explanatory diagram of a door opening sequence.

[Explanation of symbols]

 1 Refrigerator 3 Thermal insulation wall 4 Machine room 6 Side wall 8 Door 9 Condenser 10 Filter-16 Opening 26 Main part 27 Rear member

Claims (1)

[Scope of utility model registration request] 1. A machine room for accommodating a condenser or the like, which is formed on an upper part of a heat insulating wall which constitutes a main body of a refrigerator and has a filter on a front surface, and a pair of left and right sides provided on both left and right side surfaces of the machine room. Both side walls, an upwardly rotatable door provided on the front surface facing the filter, a main portion extending rearward from an upper portion of the door, and a main portion extending downward from the main portion, and at least a main portion. An opening / closing device for a door, comprising: a rear member that is narrower than a main portion; and an opening that is provided in an upper front portion of the machine chamber and that is wider than the rear member and narrower than the main portion.