KR102466105B1 - door opener apparatus for refrigerator - Google Patents

Abstract

In order to improve safety in use, the present invention includes a housing part having an upper surface coupled to a front lower portion of a refrigerator body, an insertion space formed therein, and a guide inclined surface formed on a lower bottom surface; a fixed shaft provided and fixed along the front and rear directions inside the housing part; a pressure pedal portion having a spring locking portion through which the fixing shaft is inserted at a rear portion disposed inside the housing portion, and a front portion protruding forward of the housing portion and disposed below a door hingedly connected to the refrigerator body; A first elastic spring disposed surrounding the rear portion of the fixed shaft and having a front end engaged with the spring engaging part and a rear end engaged with the inner wall surface of the housing part; a second elastic spring disposed surrounding the front portion of the fixed shaft; an opening delay portion having a rear side of the central portion opposite to the front end of the second elastic spring, an upper portion hingedly connected to the pressure pedal portion, and a locking pressing protrusion extending integrally from the upper portion toward the front; And it is slidably coupled to the upper inside of the housing part, and the rear end of the second elastic spring is engaged with the rear part penetrated into the fixing shaft corresponding to the front of the spring engaging part, and the front end of the engaging pressing projection is connected to the lower surface. A refrigerator door opening device includes a delay pressing portion in which a locking groove is recessed upward so as to be selectively inserted into rotation, and a front portion protrudes toward the front of the housing portion so that the front surface faces the rear surface of the door.

Description

Refrigerator door opener {door opener apparatus for refrigerator}

The present invention relates to a refrigerator door opening device, and more particularly, to a refrigerator door opening device with improved use safety.

In general, a refrigerator door is composed of a hinged door, and is provided on the principle that when a user grabs a handle and pulls to open the door or pushes the door, a rubber magnet is brought into close contact with the door.

Here, when a user holding an object with both hands puts an object into the refrigerator, he cannot pull the handle provided on the door of the refrigerator, puts the object down on the floor, opens the refrigerator door, and picks up the object to be placed inside the refrigerator. There was a problem that it was cumbersome to use because it was put in.

In order to solve this problem, conventionally, a door opening device is provided in which a user presses a stepping plate supported on a chin of a refrigerator door using a foot while holding an object with both hands to open the refrigerator door by rotation of the stepping plate. has been developed Through this, the user can easily put the object into the refrigerator without putting the object down from both hands.

However, in the conventional refrigerator door opening device, since the refrigerator is opened as soon as the user presses the stepping plate, the user's body collides with the refrigerator door that is being opened, resulting in a safety accident.

Korea Utility Model Registration No. 20-0174784

In order to solve the above problems, an object of the present invention is to provide a refrigerator door opening device having improved use safety.

In order to solve the above problems, the present invention provides a housing unit having an upper surface coupled to a front lower portion of a refrigerator body, an insertion space formed therein, and a guide inclined surface formed on a lower bottom surface; a fixed shaft provided and fixed along the front and rear directions inside the housing part; a pressure pedal portion having a spring locking portion through which the fixing shaft is inserted at a rear portion disposed inside the housing portion, and a front portion protruding forward of the housing portion and disposed below a door hingedly connected to the refrigerator body; A first elastic spring disposed surrounding the rear portion of the fixed shaft and having a front end engaged with the spring engaging part and a rear end engaged with the inner wall surface of the housing part; a second elastic spring disposed surrounding the front portion of the fixed shaft; an opening delay portion having a rear side of the central portion opposite to the front end of the second elastic spring, an upper portion hingedly connected to the pressure pedal portion, and a locking pressing protrusion extending integrally from the upper portion toward the front; And it is slidably coupled to the upper inside of the housing part, and the rear end of the second elastic spring is engaged with the rear part penetrated into the fixing shaft corresponding to the front of the spring engaging part, and the front end of the engaging pressing projection is connected to the lower surface. A refrigerator door opening device includes a delay pressing portion in which a locking groove is recessed upward so as to be selectively inserted into rotation, and a front portion protrudes toward the front of the housing portion so that the front surface faces the rear surface of the door.

Through the above solution, the present invention provides the following effects.

First, the opening delay unit hinged to the pressurized pedal unit is interlocked and retracted, and as it is rotated, it is engaged in the locking groove of the pressurization delay unit, and when the pressurization of the pressurization pedal unit is released, the delay pressurization unit advances interlockingly by the elastic restoring force of the first elastic spring. Since the door is opened with a delay, safety accidents due to collisions are prevented and safety in use can be remarkably improved.

Second, the rotating protrusion extending backward from the lower end of the opening delay unit is rotated and restored as it is guided to the guide inclined surface formed on the lower bottom surface of the housing unit to be inclined downward toward the rear side, and when the opening delay unit is separated from the locking groove, the elastic restoring force of the second elastic spring Since the delay pressing part is automatically retracted by the operation precision, the operation precision can be improved.

Third, the forward and backward movement displacement of the opening delay unit is set in correspondence with the gap between the locking groove and the lower surface of the delay pressing portion corresponding to the front side of the locking groove, so that the front end of the locking pressing protrusion moved backward rotates stably in the locking groove. Can be jammed.

Fourth, a pair of hinge coupling parts extending upward from both side rims of the pressure pedal part into which a hinge shaft equipped with a torsion spring is inserted is formed, so that the upper part of the opening delay part is hingedly connected to the hinge shaft, so that when the pressure pedal part is retracted, the opening delay part is retracted interlockingly. Since it rotates stably, operation precision can be improved.

Fifth, the delay pressing part is slidably coupled to the slide coupling groove formed in the housing part so that it slides stably in the forward and backward directions along the fixed axis, and the rear end of the delay pressing part is caught on the rear side of the slide coupling groove. The stopper protrusion extends and projects to move the delay pressing part Since the range is limited, operation precision can be improved.

1 is a perspective view showing a state of use of a refrigerator door opening device according to an embodiment of the present invention;
2 is a perspective view showing a refrigerator door opening device according to an embodiment of the present invention;
3 is a perspective view illustrating a housing part of a refrigerator door opening device according to an embodiment of the present invention;
4 is a perspective view showing a press pedal part in a refrigerator door opening device according to an embodiment of the present invention;
5, 6, 7 and 8 are side cross-sectional views showing a state of use of the refrigerator door opening device according to an embodiment of the present invention.

Hereinafter, a refrigerator door opening device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a state of use of a refrigerator door opening device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a refrigerator door opening device according to an embodiment of the present invention, and FIG. Fig. 4 is a perspective view showing a press pedal part in the refrigerator door opening device according to an embodiment of the present invention, and Figs. 5 and 6 and Figs. 7 and 8 are It is a side cross-sectional view showing a state of use of the refrigerator door opening device according to an embodiment of the present invention.

1 to 8, the refrigerator door opening device 200 according to an embodiment of the present invention includes a housing part 110, a fixed shaft 120, a pressure pedal part 130, a first elastic spring ( 140), a second elastic spring 150, an opening delay unit 160, and a delay pressing unit 170.

Here, the refrigerator door opening device 200 according to an embodiment of the present invention is coupled to one lower front side of the refrigerator body 1 and is provided to open the door 2 connected to the refrigerator body 1 by pressing forward. It is a device that

Meanwhile, the upper surface of the housing part 110 is coupled to the front lower part of the refrigerator body 1 by a fastening screw, etc., and it is preferable that the housing part 110 has a rectangular parallelepiped shape having a preset width and extends along the front-back direction, but has an insertion space formed therein. .

Here, the fixed shaft 120, the rear part of the pressure pedal part 130, the first elastic spring 140, and the second elastic spring 150 are inserted into the insertion space formed inside the housing part 110. , The opening delay portion 160 and the rear portion of the delay pressing portion 170 are accommodated to provide a compact appearance. At this time, it is preferable that each front part of the pressure pedal part 130 and the delayed pressure part 170 be exposed to the front of the housing part 110 and provided to slide along the front and rear directions.

In addition, the housing part 110 preferably has an opening 110a opened upwards at a central part in the width direction of the upper part so that the insertion space is opened upward and disposed facing the lower part of the refrigerator body 1 . At this time, it is preferable that the housing part 110 is coupled to the upper edge of both sides of the opening part 110a to the lower part of the refrigerator body 1 by fastening screws or the like.

Moreover, the housing part 110 has a front part opened so that the insertion space can be opened forward. In addition, the housing part 110 may further include a housing cover part 117 provided to cover the lower side of the opened front part. At this time, the housing cover part 117 covers the lower part of the open front part of the housing part 110, but the upper part of the front part of the housing part 110 has the delay pressing part 170 inserted through and disposed so that the front and back It is preferable to understand that it is opened so that it slides along the direction.

Here, both sides of the housing cover part 117 in the width direction may be aligned oppositely to both front rims of the housing part 110 and then coupled to each other through fastening screws or the like to be fixed. Of course, in some cases, the housing cover part 117 may be fitted into the front of the housing part 110 .

On the other hand, the fixing shaft 120 is provided along the front and rear directions inside the housing part 110, and it is preferable that the front and rear ends are fixed to the inner wall surface of the housing part 110. At this time, it is preferable that the length of the fixing shaft 120 is set corresponding to the length of the housing part 110 in the front-back direction.

In detail, it is preferable that the first fixed shaft fixing groove 116 is recessed backward so that the rear end of the fixed shaft 120 is engaged with the inner wall surface of the rear side of the housing part 110 . In addition, it is preferable that the second fixed shaft fixing groove 117a is recessed forward on the rear surface of the housing cover 117 so that the front end of the fixed shaft 120 is engaged.

Through this, it is preferable that the rear end of the fixed shaft 120 is engaged with the first fixed shaft fixing groove 116 and at the same time the front end of the fixed shaft 120 is engaged with the second fixed shaft fixed groove and fixed. do. That is, it is preferable to understand that the fixing shaft 120 is maintained in a fixed state by being disposed along the front-back direction inside the housing part 110 . At this time, the fixed shaft 120 guides the pressing pedal unit 130, the first elastic spring 140, the second elastic spring 150, and the delay pressing unit 170 along the forward and backward directions. It is desirable to understand by providing a function.

On the other hand, it is preferable that the pressure pedal part 130 has a spring engaging part 132 through which the fixing shaft 120 is inserted into the rear part disposed inside the housing part 110 .

At this time, the pressure pedal part 130 may include a flat plate part 130a having a width smaller than that of the housing part 110 at the rear part disposed inside the housing part 110 and extending along the front and rear directions. have. In addition, the spring hooking portion 132 may integrally protrude upward from the rear portion of the flat plate portion 130a.

In addition, it is preferable that a first guide through hole 132a having an inner diameter corresponding to an outer diameter of the fixing shaft 120 is formed through the spring engaging part 132 in the forward and backward directions. At this time, preferably, the inner diameter of the first guide through hole 132a may be set to slightly exceed the outer diameter of the fixing shaft 120 so that the press pedal part 130 slides along the front and rear directions. At this time, it is preferable that the first guide through-hole 132a is inserted through the fixing shaft 120 .

In addition, the first elastic spring 130 is disposed surrounding the rear portion of the fixed shaft 120, and the front end is engaged with the spring engaging portion 132, and the rear end is engaged with the rear inner wall surface of the housing portion 110. Combined is preferred. At this time, the rear end of the first elastic spring 130 may be engaged with the first fixed shaft fixing groove 116 .

Here, the first elastic spring 130 is preferably provided to provide elastic restoring force to the press pedal part 130 forward when it is pressed backward by a user's external force.

On the other hand, a pair of hinge coupling parts 136a are formed at the center of the pressurization pedal part 130 in the front and rear direction, extending upward from both side rims of the flat plate part 130a so that the opening delay part 160 is hingedly connected to the upper part. this is preferable At this time, it is preferable that hinge insertion holes 136 are formed through the upper portion of each of the hinge coupling parts 136a in the width direction so that the hinge shaft 162 to be described later is inserted. Here, the hinge coupling part 136a may be selectively disposed opposite to the lower surface of the locking groove 172 and the delay pressing part 170 as it moves in the forward and backward directions.

In addition, the protruding part 135 may integrally extend upward from the flat plate part 130a at a position corresponding to the inside of the front part of each hinge coupling part 136a at the central part in the front and rear direction of the press pedal part 130. .

Here, it is preferable that a second guide through-hole 135a having an inner diameter corresponding to an outer diameter of the fixing shaft 120 is formed through the protruding part 135 in the forward and backward directions. At this time, preferably, the inner diameter of the second guide through hole 135a may be set to slightly exceed the outer diameter of the fixing shaft 120 so that the press pedal part 130 slides along the front and rear directions. At this time, it is preferable that the first guide through hole 132a and the second guide through hole 135a are respectively inserted into the fixing shaft 120 .

Here, the first guide through-hole 132a and the second guide through-hole 135a formed in the press pedal part 130 are inserted into the fixing shaft 120, respectively, so that the press pedal part 130 is It can be slid along the forward and backward directions.

Moreover, guide protrusions 138 protrude on both sides of the pressure pedal part 130 in the width direction, respectively, and may extend along the front-rear direction. In addition, guide grooves 118 are recessed on both sides of the housing part 110 opposite to each of the guide protrusions 138 and may extend in the front-rear direction. Further, a guide stopper 118a may be formed on the rear side of the guide groove 118 so that the rear end of each guide protrusion 138 is hooked. Through this, each of the guide protrusions 138 is slidably coupled to each of the guide grooves, so that the pressure pedal 130 can be slid and moved along the forward and backward directions.

In addition, in a state where the first guide through hole 132a and the second guide through hole 135a are respectively inserted into the fixing shaft 120, the lower rear side of the press pedal part 130 is the housing. It is preferable to be spaced apart from the lower bottom surface 111 on the rear side of the unit 110 in the vertical direction. At this time, the lower front side of the pressure pedal unit 130 may come into contact with the front lower bottom surface 113 of the housing unit 110 .

Here, the height difference between the lower bottom surface 111 on the rear side of the housing part 110 and the lower bottom surface 113 on the front side of the housing part 110 corresponds to the longitudinal length of the guide inclined surface 112 described later. and can be set.

In addition, at the center of the press pedal part 130 in the front and rear direction, opening holes 133 for disposing the opening delay part 160 in the flat plate part 130a located adjacent to the rear of the protruding part 135 are formed in upper and lower directions. It is preferable to form penetrating in the direction. That is, the protrusion 135 is preferably formed in front of the opening hole 133 . At this time, the opening hole 133 is preferably formed such that the lower portion of the opening delay portion 160 is inserted through the lower portion of the press pedal portion 130 disposed inside the front of the housing portion 110 .

On the other hand, a pair of slit protrusions 137 are provided on both side edges in the width direction of the flat plate part 130a corresponding to the front of the protruding part 135 and the hinge coupling part 136a at the front part of the pressure pedal part 130 can be integrally extended upward.

In addition, in the housing cover part 117, slit guide grooves 117b may be recessed upwardly at the lower portions of both sides in the width direction of the positions corresponding to each of the slit projections 137 so that each of the slit projections 137 is inserted through them. have.

Accordingly, each of the slit protrusions 137 is inserted into each of the slit guide grooves 117b and can be slid in the front and rear directions of the housing part 110 inside and outward.

In addition, the front part of the pressure pedal part 130 protrudes forward from the housing part 110 and faces the lower side of the door 2 hingedly connected to the refrigerator body 1. A pedal 131 is provided It is desirable to be At this time, the pedal 131 is provided in a flat plate shape so that the front surface may be disposed perpendicular to the fixing shaft 120 . That is, the front surface of the pedal 130 may be disposed in the same direction as the direction toward the front surface of the door 2 .

On the other hand, the second elastic spring 150 is disposed surrounding the front part of the fixed shaft 120, and the front end is engaged with the rear surface of the spring coupling part 165 disposed at the rear side of the opening delay part 160, and the rear end This may be engaged with the front surface of the spring facing portion 171 formed in the rear portion of the delay pressing portion 170. Here, the second elastic spring 150 is preferably provided to provide elastic restoring force forward and backward to the delay pressing part 170 .

In addition, the opening delay unit 160 is preferably arranged to face the front end of the second elastic spring 150 at the rear of the central portion. In detail, the spring coupling part 165 having a hole formed in the center to be inserted into the fixing shaft 120 may be further provided at the rear side of the opening delay part 160 . In this case, the front end of the second elastic spring 150 is hooked to the rear surface of the spring coupling part 165, but the front surface may be contacted and supported on the rear side of the central portion of the opening delay part 160. The spring coupling part 165 is provided separately from the opening delay part 160 so that the opening delay part 160 does not rotate interlockingly when the hinge rotates and is engaged with the front end of the second elastic spring 150 It is preferable to understand it as a member provided to maintain a state.

In addition, it is preferable that the front surface of the opening delay part 160 is spaced apart from the rear surface of the protruding part 135 formed on the pressure pedal part 130 . Here, it is preferable that the expansion through hole 161 is formed through the center of the opening delay unit 160 in the forward and backward directions, and the expansion through hole 161 is preferably inserted into the fixed shaft 120 . At this time, when the opening delay part 160 rotates around the hinge shaft 162, the inner diameter of the expansion through-hole 161 is equal to that of the fixed shaft so that a margin is secured so as not to be caught on the fixed shaft 120. It is set to exceed the outer diameter, and the inner circumference of the expansion through hole 161 and the outer circumference of the fixing shaft 120 are preferably spaced apart from each other.

Also, when the pressure pedal unit 130 presses and retracts along the fixed shaft 120, the opening delay unit 160 is interlocked and retracted and rotated about the hinge shaft 162, so that the opening delay unit 160 ) may be hinged through the hinge axis 162 so that the upper portion of the housing portion 110 is hingedly connected to one side of the upper portion of the pressure pedal portion 130 disposed inside the front side of the housing portion 110 . In this case, preferably, an upper portion of the opening delay unit 160 may be hinged to the hinge coupling unit 136a formed in the press pedal unit 130 .

In detail, a hinge through-hole 162a may be formed through the upper portion of the opening delay portion 160 in the width direction, and the hinge through-hole 162a may be formed on the upper portion of the hinge coupling portion 136a. It may be arranged in alignment with the hole 136 . Further, the opening delay unit 160 preferably further includes a hinge shaft 162 inserted through the hinge through hole 162a and the hinge insertion hole 136 . Accordingly, the opening delay unit 160 may be hingedly connected to an upper portion of the pressure pedal unit 130 through the hinge shaft 162 .

In addition, it is preferable that the locking pressing protrusion 161 integrally extends from the upper end of the opening delay unit 160 toward the front. At this time, when the press pedal part 130 advances, the upper surface of the engaging press protrusion 161 may be disposed opposite to the lower surface of the delay press part 170 . In addition, when the pressure pedal part 130 is retracted, the front end of the locking pressure protrusion 161 can be rotated and inserted into the locking groove 172 to be described later.

Meanwhile, the lower portion of the opening delay unit 160 is inserted into the opening hole 133, and the opening delay unit 160 has a rotating protrusion 164 from the lower end disposed below the opening hole 133. It is preferable that it extends integrally toward the rear.

In addition, a guide inclined surface 112 is formed on the lower bottom surface of the housing part 110, and the guide inclined surface 112 is the lower bottom surface of the housing part 110 facing the lower side of the rotary protrusion 164. It is preferable to form a downward slope toward the rear side.

At this time, the front end of the guide inclined surface 112 is continuously formed with the lower bottom surface 113 on the front side of the housing part 110, and the rear end of the guide inclined surface 112 is formed on the rear side of the housing part 110. It is preferable to be continuously formed with the lower bottom surface 111.

In addition, the height of the opening delay unit 160 in the vertical direction is the front lower bottom surface 113 of the front side bottom surface 113 of the housing unit 110 continuously formed on the front side lower surface of the delay pressing unit 170 and the front side of the guide inclined surface 112. ) can be set in correspondence with the interval between

On the other hand, it is preferable that the delay pressing part 170 is slidably coupled to the inside of the upper side of the housing part 110 in the forward and backward directions. In detail, on the inside of the upper part of the housing part 110, a pair of slide coupling grooves 114 are spaced at intervals corresponding to the width of the delay pressing portion 170 so that both sides of the delay pressing portion 170 in the width direction are slide-coupled. Is recessed on both sides in the width direction and is preferably extended along the front-back direction. In addition, although not shown by reference numerals, it is preferable that slide coupling protrusions are formed on both sides of the delay pressing portion 170 in the width direction to extend to both sides in the width direction so as to be slidably coupled to the slide coupling grooves 114. Accordingly, the delay pressing part 170 can be slid along the front and rear directions inside the upper side of the housing part 110 .

At this time, the longitudinal length of the slide coupling groove 114 may be set to be less than the longitudinal length of the housing part 110 and may be set to correspond to the longitudinal pressing length of the delay pressing part 170 .

In addition, it is preferable that stopper protrusions 115 extend inwardly in the width direction so that the rear end of the delay pressing portion 170 is engaged at the rear side of each slide coupling groove 114. At this time, the stopper protrusion 115 may be formed on the upper part of the center side of the housing part 110 in the front-rear direction.

On the other hand, it is preferable that the spring facing portion 171 is formed in the rear portion of the delay pressing portion 170, which is inserted through the fixing shaft 120 corresponding to the front of the spring engaging portion 132. At this time, the spring facing portion 171 integrally extends downward from the rear portion of the retard pressing portion 170, and has an inner diameter corresponding to the outer diameter of the fixed shaft 120 so that the fixed shaft 120 is inserted therethrough. It is preferable that the third guide through-hole 171a having a through-form in the front-back direction. In this case, preferably, the inner diameter of the third guide through hole 171a may be set to slightly exceed the outer diameter of the fixed shaft 120 . At this time, it is preferable that the third guide through-hole 171a is inserted through the fixing shaft 120 . In addition, it is preferable that the rear end of the second elastic spring 150 is engaged with the front surface of the spring facing portion 171 .

Further, it is preferable that the locking groove 172 is recessed upward so that the front end of the locking pressing protrusion 163 is selectively rotatably inserted on the lower surface of the delay pressing part 170 . At this time, the locking groove 172 may be formed between the lower surface of the front side of the delay pressing part 170 inserted into the housing part 110 but selectively moved forward and the spring facing part 171. have.

Here, the lower surface of the front side of the delay pressing part 170 inserted into the housing part 110 and selectively moved forward is formed as a flat surface, and when the pressing pedal part 130 advances, the opening delay part It may be disposed opposite to the upper surface of (160). Also, when the pressure pedal unit 130 is retracted, the front end of the opening delay unit 160 may be rotated and inserted into the locking groove 172 .

At this time, the front-end movement of the opening delay unit 160 in the front-and-back direction is such that the front end of the locking pressing protrusion 163 moved backward is engaged with the locking groove 172, and the front end of the locking groove 172 and the front end of the locking groove 172. It is preferable to set correspondingly to the distance between the lower surfaces of the delay pressing part 170 corresponding to the front side of the locking groove 172.

Also, the front portion of the delay pressing portion 170 protrudes toward the front of the housing portion 110, and the front portion is preferably disposed facing the rear surface of the door 2. In this case, the front part of the delay pressing part 170 may be disposed above the front part of the press pedal part 130 . In detail, the rotation shaft 173 is inserted through the front portion of the delay pressing unit 170 in the width direction, and the lower end is hingedly connected to the rotation shaft 173 to extend upward. It is preferable that the pressing surface portion 174 is provided. do. At this time, the rear surface of the pressing surface portion 174 is disposed to face the lower front surface of the refrigerator body 1, and the front surface of the pressing surface portion 174 is preferably disposed to face the lower rear surface of the door 2. Here, the lower front surface of the refrigerator body 1 and the lower rear surface of the door 2 may be spaced apart from each other at a distance corresponding to the thickness of the pressing surface portion 174 in the front-back direction.

Meanwhile, with reference to FIGS. 5 to 8 , the use state of the refrigerator door opening device 200 will be described below.

First, in an initial state in which the user does not press the pressure pedal part 130, the upper surface of the opening delay part 160 is inserted into the housing part 110. Opposite contact is made to the lower surface of the front side. At the same time, the lower surface of the opening delay unit 160 is in opposite contact with the lower bottom surface 113 on the front side of the housing unit 110, and the upper surface of the rotating protrusion 164 is on the rear side of the opening hole 133. It is supported in surface contact with the rim lower surface 134.

In addition, when the user presses the pedal 131 of the pressure pedal part 130 backward, the first elastic spring 140 is compressed, and the entire pressure pedal part 130 slides and retracts, and at the same time, the pressure pedal The opening delay part 160 and the spring coupling part 165 hinged to the part 130 are interlocked and retracted. At this time, the opening delay part 160 is maintained in a fixed state by the stopper protrusion 115, and the second elastic spring 150 is compressed by the spring coupling part 165.

In this case, a torsion spring may be further provided to the hinge shaft 162 to provide elastic restoring force for rotating the opening delay unit 160 . Of course, the torsion spring is not further provided, and the longitudinal extension length and weight of the rotary protrusion 164 are set to be greater than the longitudinal extension length and weight of the locking pressure protrusion 163, so that the opening delay unit 160 is prevented by gravity. It may be automatically rotated, or the position of the hinge shaft 162 may be set to a position away from the center of gravity so that the opening delay unit 160 is automatically rotated by gravity.

In addition, when the user pushes the pedal 131 of the pressure pedal unit 130 backward and the opening delay unit 160 is retracted, the moment when the opening delay unit 160 is disposed opposite to the lower side of the locking groove 172, the torsion spring As the front end of the locking pressing protrusion 163 rotates upward around the hinge shaft 162 by the elastic restoring force, it is inserted into the locking groove 172 . At this time, the front end of the holding pressure protrusion 163 is caught and inserted into the locking groove 172, and at the same time, the rear end of the rotating protrusion 164 is rotated downward around the hinge shaft 162, and the opening hole 133 ) is separated from the rear rim lower surface 134 and contacts the rear lower bottom surface 111 of the housing part 110.

Here, in a state in which the user presses the pressure pedal part 130 downward, the door 2 is not opened because the forward pressing force by the delayed pressing part 170 does not act on the door 2. status is maintained

Meanwhile, when the user releases the pressurization of the pressure pedal part 130, the pressure pedal part 130 and the opening delay part 160 move forward by the elastic restoring force of the compressed first elastic spring 140. pressure is restored.

At the same time, the front end of the locking pressing protrusion 163 is inserted into the locking groove 172, and the delay pressing portion 170 is simultaneously pressed forward by the locking pressing protrusion 163. Accordingly, as the delay pressing unit 170 presses the door 2 forward, the door 2 is opened.

And, referring to FIG. 7 , when the opening delay part 160 continues to be pressed forward and restored, the lower surface of the rotating protrusion 164 is formed between the guide inclined surface 112 and the front lower part of the housing part 110. As the surfaces are guided to the bottom surface 113 sequentially, the opening delay unit 160 is rotated and pressed about the hinge shaft 162 .

Subsequently, referring to FIG. 8 , the front end of the locking pressing protrusion 163 is rotated downward about the hinge shaft 162 and is separated from the locking groove 172, and the upper surface of the rotating protrusion 164 is The rear edge of the opening hole 133 is supported in surface contact with the lower surface 134 .

In addition, when the front end of the locking pressing protrusion 163 is rotated downward about the hinge shaft 162 and is separated from the locking groove 172, the second pressing portion 170 is compressed. It is retreated by the elastic restoring force of the elastic spring 150 and automatically restored to the initial state.

In this way, when the pressure pedal unit 130 is pressed to delay opening the door 2, the opening delay unit 160 hinged to the pressure pedal unit 130 is retracted and rotated in conjunction with the locking groove of the delay pressure unit 170. 172, and as the pressurization of the pressure pedal unit 130 is released, the delay pressing unit 170 engaged with the opening delay unit 160 interlocks with the elastic restoring force of the first elastic spring 140. Since the door 2 is pushed forward and opened with a delay, safety accidents due to collisions are prevented, and safety in use can be remarkably improved.

In addition, after the delay pressing unit 170 engaged with the opening delay unit 160 moves forward interlockingly and delays pressing and opening the door 2, the rotational protrusion extends integrally from the lower end of the opening delay unit 160 toward the rear. As the 164 is guided to the guide inclined surface 112 formed to be inclined downward toward the rear on the lower bottom surface of the housing part 110 opposite to the lower side of the rotating protrusion 164, the opening delay part 160 is rotated and restored. When it is separated from the locking groove 172, the delay pressing unit 170 is automatically retracted by the elastic restoring force of the second elastic spring 150, so operation precision can be improved.

At this time, the forward and backward movement displacement of the opening delay unit 160 is set to correspond to the gap between the locking groove 172 and the lower surface of the delay pressing unit 170 corresponding to the front side of the locking groove 172, and moves backward. The front end of the engaging pressing protrusion 163 can be stably rotated and engaged with the engaging groove 172. Here, a pair of hinge coupling parts 136a are formed extending upward from both side rims of the pressure pedal part 130 and into which the hinge shaft 162 equipped with a torsion spring is inserted, so that the upper part of the opening delay unit 160 is the hinge shaft Since the hinge is connected to 162, when the pressure pedal unit 130 is retracted, the opening delay unit 160 is interlocked and retracted and rotated stably, so that operation precision can be improved.

In addition, when the press pedal unit 130 advances, the upper surface of the engaging press protrusion 163 is disposed opposite to the lower surface of the delay press unit 170, and the height of the opening delay unit 160 in the vertical direction is the delay press unit 170 It is set to correspond to the gap between the lower bottom surface 113 of the front side of the housing part 110 continuously formed in front of the lower surface of the front side and the guide inclined surface 112 of the front side, so that the locking pressing protrusion 163 of the opening delay unit 160 is Since arbitrary rotation is prevented before engaging in the locking groove 172, operation precision can be improved.

In addition, the opening hole 133 is formed to penetrate in the vertical direction so that the lower part of the opening delay part 160 is inserted into the pressure pedal part 130, and the upper surface of the rotating protrusion 164 is the rear edge of the opening hole 133. Since it is supported in surface contact with the lower surface 134 and provides a stopper function, the rotation angle of the opening delay unit 160 is limited and guided, so that operation precision can be improved.

In addition, since the front end is disposed on the rear side of the opening delay unit 160 and the front end of the second elastic spring 150 is engaged with the spring coupling unit 165 inserted through the fixed shaft 120, the opening delay unit 160 As the spring coupling part 165 is moved independently of the opening delay part 160 to align in parallel with the second elastic spring 150 during rotation of the spring, a stable elastic restoring force for restoring the delay pressing part 170 is provided. can do.

In addition, the delay pressing part 170 and the pressing pedal part 130 are slide-coupled to the slide coupling groove part 114 and the guide groove part 118 formed in the housing part 110, respectively, to stably back and forth along the fixed shaft 120. Since it slides in the direction, operation precision can be improved.

Moreover, on the rear side of the slide coupling groove 114, the stopper protrusions 115 extend inwardly in the width direction so that the rear end of the retard pressing portion 170 is engaged, so that the range of movement of the retard pressing portion 170 is limited, thereby improving operational precision. this can be improved.

In this case, terms such as "include", "comprise" or "have" described above mean that the corresponding component may be present unless otherwise stated, excluding other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

As described above, the present invention is not limited to the above-described embodiments, and it is possible to modify and implement the present invention by those skilled in the art without departing from the scope claimed in the claims of the present invention. And, such modifications fall within the scope of the present invention.

1: refrigerator body 2: door
110: mounting housing 120: fixed shaft
130: pressure pedal unit 140: first elastic spring
150: second elastic spring 160: opening delay unit
170: delay pressing unit 200: refrigerator door opening device

Claims (6)

a housing part having an upper surface coupled to the front lower part of the refrigerator body, an insertion space formed therein, and a guide inclined surface formed on a lower bottom surface;
a fixed shaft provided and fixed along the front and rear directions inside the housing part;
a pressure pedal portion having a spring locking portion through which the fixing shaft is inserted at a rear portion disposed inside the housing portion, and a front portion protruding forward of the housing portion and disposed below a door hingedly connected to the refrigerator body;
A first elastic spring disposed surrounding the rear portion of the fixed shaft and having a front end engaged with the spring engaging part and a rear end engaged with the inner wall surface of the housing part;
a second elastic spring disposed surrounding the front portion of the fixed shaft;
an opening delay portion having a rear side of the central portion opposite to the front end of the second elastic spring, an upper portion hingedly connected to the pressure pedal portion, and a locking pressing protrusion extending integrally from the upper portion toward the front; and
It is slidably coupled to the inside of the upper side of the housing part, and the rear end of the second elastic spring is engaged with the rear part penetrated into the fixing shaft corresponding to the front of the spring engaging part, and the front end of the engaging pressing protrusion is selectively coupled to the lower surface. A refrigerator door opening device comprising a delay pressing portion in which a locking groove is recessed upward so as to be rotated and inserted into, and a front portion protrudes toward the front of the housing portion so that the front surface faces the rear surface of the door. According to claim 1,
A pair of hinge coupling parts extending upward from both side rims and into which a hinge shaft equipped with a torsion spring is inserted is formed in the press pedal part so that the opening delay part is retracted and rotated when the pressure pedal part is retracted, and the upper part of the opening delay part Is hinged to the hinge shaft,
A rotating protrusion integrally extends rearward from the lower end of the opening delay portion, and the guide inclined surface is formed on a lower bottom surface of the housing portion opposite to the lower side of the rotating protrusion and is inclined downward toward the rear side. Device. According to claim 2,
So that the front end of the locking pressing protrusion moved backward is engaged with the locking groove, the forward-backward movement displacement of the opening delay part is proportional to the distance between the locking groove and the lower surface of the delay pressing part corresponding to the front side of the locking groove. A refrigerator door opening device characterized in that it is set in correspondence. According to claim 3,
The vertical height of the opening delay unit is set to correspond to the gap between the front lower surface of the delay pressing unit and the front lower bottom surface of the housing unit continuously formed in front of the guide inclined surface,
An opening hole is formed in the press pedal part in a vertical direction so that the lower part of the opening delay part is inserted therethrough, and the upper surface of the rotating protrusion is selectively supported in surface contact with a lower surface of a rear edge of the opening hole. . According to claim 4,
The delay pressing portion is formed with a spring facing portion integrally extending downward from the rear portion so as to be inserted through the fixed shaft corresponding to the front of the spring engaging portion,
The second elastic spring has a rear end engaged with the front surface of the spring facing part, and a front end disposed at the rear side of the opening delay part and engaged with a spring coupling part inserted through the fixing shaft,
The refrigerator door opening device according to claim 1 , wherein a protrusion extends upward in front of the opening hole in the press pedal part, and a front surface of the delay pressing part is spaced apart from a rear surface of the protrusion part. According to claim 1,
The housing portion has an upper widthwise center portion opened,
Inside the upper part of the housing part, a pair of slide coupling grooves are recessed on both sides in the width direction at intervals corresponding to the width of the delay pressing portion so that both sides of the delay pressing portion in the width direction are slidably coupled, and extend along the front and rear directions,
Refrigerator door opener, characterized in that the stopper protrusions extend inwardly in the width direction so that the rear end of the delay pressing portion is engaged at the rear side of each slide coupling groove.

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