JP5492056B2 - Storage door device - Google Patents

Description

  The present invention relates to a door device for a storage such as a refrigerator.

  A general door device of a refrigerator is supported on a side edge of either the left or right of the front opening formed in the refrigerator body made of a heat insulating box so that the heat insulating door can swing open and close around the vertical axis, At the time of closing the heat insulating door, the magnet packing attached to the peripheral edge of the back surface of the heat insulating door is made to adhere to the peripheral edge on the front side of the front opening. In addition, in some door devices, a simple locking mechanism is provided by providing a ball plunger downward on the upper edge side of the front opening while forming a fitting recess for fitting the ball plunger ball on the upper surface of the heat insulating door. Is configured. In addition, what comprised the simple lock mechanism using the ball plunger in the door apparatus is described in patent document 1, for example.

JP 2003-224374 A

However, when using a ball plunger, the pressing force of the ball depends on the force of the spring loaded in the cylinder. Therefore, to obtain the desired pressing force, it is necessary to find one with a corresponding spring force. In some cases, it may be necessary to manufacture custom products. As for the arrangement structure, a complicated structure is required in which a nut is fixed to the bracket attached to the upper edge of the front opening by welding, and a ball plunger is screwed into the nut, resulting in high costs. there were.
The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a door device including a simple lock mechanism that can be manufactured at low cost.

The door device of the storage of the present invention is such that the door is supported on the side edge of the front opening formed in the storage body so that the door can swing open and close around the vertical axis. A supporting member is provided at a position corresponding to the upper side of the swinging end of the closed door, and a pressing plate having a substantially horizontal posture is attached to the supporting member so as to be elastically deformable in the vertical direction. A ball caster is attached downward to the plate, and a swinging recess on the upper surface of the door is formed with a fitting recess into which a ball of the ball caster is fitted when the door is closed . The ball is configured to be locked by being pressed against the fitting recess by the elastic force of the pressing plate .

When the door is closed and reaches its final stage, the ball of the ball caster rides on the swinging end of the door while elastically deflecting the presser plate, and when it is normally closed, the presser plate is restored and displaced downward. On the other hand, the ball of the ball caster is fitted and pressed into the fitting recess of the swinging end of the door, and a simple lock is applied.
The ball pressing force can be adjusted by changing the elastic force of the holding plate while using the existing ball caster. Also, the ball caster arrangement structure can be handled only by screwing, such as fixing the ball caster to the holding plate with screws and fixing the holding plate to the support member with screws. As a result, it can cope with low cost.

The following configuration may also be used.
(1) The support member is formed by a support plate provided in a form protruding horizontally toward the front side at the upper edge of the front opening, and a window hole is opened in the support plate, and the protruding edge A mounting plate is formed upright, and an end on the near side of the press plate to which the ball caster is mounted downward is attached to the mounting plate in a cantilevered manner, and the ball of the ball caster is attached to the support plate. It protrudes to the lower surface side through the window hole.

When the door is closed and it reaches the final stage, the ball of the ball caster rides on the rocking end of the door while elastically flexing so that the back end is lifted around the edge on the near side. When closed, the presser plate is restored and displaced so that the back end is lowered downward, and the ball is fitted into the fitting recess and locked.
Depending on the mounting height of the presser plate, the back end of the presser plate is tilted upward, and the ball caster's ball is pressed against the fitting recess. When the force in the direction in which the door is pressed acts on the door, the degree of adhesion of the door can be further increased.

  (2) The ball caster has a structure in which the ball is accommodated in the main body so that the ball can freely rotate and the lower side protrudes from the lower surface of the main body, and a flange is formed at the bottom of the main body. The ball caster is fixed by inserting the main body into a mounting hole opened in the presser plate from the lower surface side, applying the flange to a hole edge on the back side of the mounting hole, and fastening with a screw. The mounting position of the presser plate with respect to the support plate is set such that the distance between the lower surface of the presser plate and the upper surface of the support plate is smaller than the thickness of the flange.

  When the mounting height of the press plate is as described above, the position on the near side of the flange of the ball caster main body hits the support plate, and the back end of the press plate is mounted in a tilted upward position in advance, so that the door is When the ball caster is closed and fitted into the fitting recess of the door and pressed, a force in the direction of pressing the door against the front opening acts, and the degree of contact of the door is increased.

(3) In the mounting plate of the support plate, two screw insertion holes are formed side by side in the horizontal direction, and the support plate has an end on the near side on the support plate. A plate to be attached that hits the back side of the mounting plate of the plate is formed upright, and two screw holes are formed in the mounting plate corresponding to the insertion holes, and each screw is inserted into the corresponding insertion hole. The presser plate is attached in a cantilever manner by being threaded into the screw hole.
By performing the screwing work from the front side with a large space, the presser plate can be attached to the support plate, and the work of attaching the presser plate can be performed efficiently.

(4) The insertion hole formed in the mounting plate of the support plate is formed in the shape of a long hole in the horizontal direction.
The installation position of the presser plate can be shifted horizontally using the long hole-shaped insertion hole. Even if the support position of the door is shifted in the frontage direction, the ball caster fixed to the presser plate It is possible to align the ball and the fitting recess on the door side.

(5) An auxiliary attached plate formed to rise at an acute angle or an obtuse angle with respect to the presser plate is formed on an end edge of the presser plate opposite to the end edge on which the attached plate is formed, The screw hole is formed in the auxiliary mounting plate.
When the auxiliary mounting plate that stands up at an acute angle is put on the mounting plate of the support plate and fixed with screws, the back end of the presser plate is attached in advance in a slanting posture, the door is closed, and the ball caster ball is When the fitting recess is pressed against the door, a force in the direction pressed against the front opening acts on the door, and the degree of adhesion of the door is increased.
On the other hand, when the auxiliary mounting plate that rises at an obtuse angle is put on the mounting plate of the support plate and screwed, the back end of the presser plate is mounted in advance in an obliquely inclined position, the door is closed and the ball caster is closed. When the ball is fitted and pressed into the fitting recess of the door, a force in a direction away from the front opening acts on the door, and the degree of adhesion of the door is weakened.

(6) The support plate has a length comparable to the lateral width dimension of the front opening, and the attachment positions of the presser plate are set symmetrically on both left and right ends of the support plate. It is also possible to deal with the case where the door is opened from side to side.
(7) The upper surface on the swing end side of the door where the fitting recess is formed is formed as an inclined surface that is inclined downward toward the back surface side. The ball caster has a small allowance when the ball on the swinging end side of the door rides on the upper surface from the corner on the back surface, and the corner is less likely to wear, improving durability.
(8) The fitting recess formed in the swinging end portion of the upper surface of the door is formed in a horizontally long shape along the lateral width direction of the door. Even when the door support position is shifted in the frontage direction, it is ensured that the ball caster ball fixed to the presser plate is fitted and locked in the fitting recess on the door side.

  ADVANTAGE OF THE INVENTION According to this invention, the door apparatus provided with the simple lock mechanism which can be manufactured cheaply can be provided.

The front view of the door opening state of the quick-cooling refrigerator which concerns on Embodiment 1 of this invention Exploded perspective view of ball caster arrangement A perspective view showing a locking mechanism Partial cutaway side view of the state close to the door Partial cutaway side view when the door is closed Sectional drawing which shows the attachment structure of the ball caster concerning Embodiment 2. The disassembled perspective view of the arrangement | positioning part of the ball caster concerning Embodiment 3 The disassembled perspective view of the arrangement | positioning part of the ball caster concerning Embodiment 4 Sectional view showing the mounting structure of the ball caster Sectional drawing which shows the mounting structure of the ball caster which concerns on a modification The perspective view of the support plate which concerns on Embodiment 5. FIG. Partially cutaway side view of a state close to the door closing according to the sixth embodiment Partial cutaway side view when the door is closed The perspective view which shows the locking mechanism which concerns on Embodiment 7. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this Embodiment 1, the case where it applies to the door apparatus of a quick-cooling warehouse is illustrated.
Referring to FIG. 1, the entire structure of the rapid cooling chamber will be described. A cooling body 10 (hereinafter simply referred to as a main body 10) is placed on the upper surface of the machine room 11, and is supported by legs 12 disposed on the bottom surface of the machine room 11. ing.

The main body 10 is composed of a vertically long heat insulating box whose front surface is opened, and a heat insulating door 15 is attached to the front opening 13 of the main body 10 so as to be swingable and openable around the left edge as viewed from the front. The heat insulating door 15 is formed of a metal plate such as a stainless steel plate at least on the surface and the peripheral surface.
As shown in FIGS. 4 and 5, a magnet packing 17 is attached to the periphery of the back surface of the heat insulation door 15, and a magnet 18 is embedded in the periphery of the front opening 13. At the time of closing, the magnet packing 17 is attracted and adhered to the peripheral edge of the front opening 13 to seal the front opening 13.

Inside the main body 10, that is, inside the cabinet, the cooling unit 20 is installed in the left region as viewed from the front, while the right region is a food storage chamber 25, and shelves 26 are formed in multiple stages. A cooling unit 21 and a cooling fan 22 are accommodated in the cooling unit 20, and the cooling unit 21 includes a refrigeration apparatus (not shown) including a compressor, a condenser, and the like installed in the machine room 11 and a refrigerant pipe. Circularly connected.
The basic cooling operation is performed by driving the refrigeration apparatus (compressor) and the cooling fan 22, whereby the air in the storage chamber 25 is cooled from the surface side facing the storage chamber 25 in the cooling unit 20. Cold air is generated while being sucked into the unit 20 and passing through the cooler 21, and the cold air blown out from the back of the cooling unit 20 hits the left side wall inside the cabinet and is divided into the front and back, and the front side of the cooling unit 20. Then, after circulating around the back side surface, a circulation flow is generated such that it is fed into the storage chamber 25, whereby the food stored in the tray 26 and stored on the shelf 26 is rapidly cooled.

Next, the lock mechanism R that holds the heat insulation door 15 in the closed state will be described with reference to FIGS.
A support plate 30 (corresponding to a support member of the present invention) made of a metal plate for supporting a ball caster 50 described later is disposed on the upper edge portion 14 of the front opening 13 of the main body 10. The support plate 30 has a belt-like shape having a length slightly larger than the width dimension (frontage) of the front opening 13, and the mounting plate 31 formed to rise on the back edge side is the upper edge of the front opening 13. 14 is fixed by fixing with a screw 32 at a plurality of locations along the length direction.
In other words, as shown in FIG. 5, the support plate 30 protrudes in a horizontal posture from the upper edge portion 14 of the front opening 13 to the near side at a position above the upper surface 16 of the closed heat insulating door 15 by a predetermined dimension. The protruding end edge reaches a position slightly behind the surface of the heat insulating door 15. On the protruding edge of the support plate 30, a mounting plate 34 shorter than the above-described mounting plate 31 on the back side is bent and formed at a right angle.

  An arrangement location of the ball caster 50 is set at a position corresponding to the right end of the support plate 30, that is, above the swinging end of the closed heat insulating door 15. At the same location, a circular window hole 35 is opened at a substantially central portion in the width direction of the support plate 30. In addition, the front mounting plate 34 is formed with two insertion holes 37 for the screws 36 side by side in the left-right direction.

  In the ball caster 50, a ball 55 is accommodated in a substantially hemispherical main body 51 in such a manner that the ball 55 can freely rotate and the lower side protrudes from the lower surface of the main body 51. More specifically, a flange 52 is formed at the bottom of the main body 51, and the ball 55 is prevented from coming off by a small-diameter stopper 53 formed on the lower surface side of the flange 52. It has a structure in which a part on the lower side protrudes from the lower surface. Compared with the window hole 35 opened in the support plate 30, the flange 52 has a larger diameter and the stopper 53 has a smaller diameter.

On the other hand, a presser plate 40 for attaching the ball caster 50 is provided. The pressing plate 40 is made of a metal plate, and is formed in a substantially square plane having a depth slightly smaller than the depth (width) of the support plate 30 described above. At the front edge of the presser plate 40, a mounted plate 41 that can be brought into contact with the upper region of the mounting plate 34 of the support plate 30 rises at a right angle, and the mounted plate 41 has two screw holes 42. Is formed corresponding to the insertion hole 37.
In addition, a circular attachment hole 44 is opened in the presser plate 40 at a position corresponding to the concentricity with the window hole 35 when attached to the support plate 30 as will be described later. The mounting hole 44 is sized to fit the hemispherical main body 51 of the ball caster 50.

In the ball caster 50, the main body 51 is inserted into the mounting hole 44 of the presser plate 40 from the lower surface side. Thus, the mounted plate 41 of the holding plate 40 inserted through the ball caster 50 is applied to a predetermined position on the back side of the mounting plate 34 of the support plate 30. At this time, as shown in FIG. The flange 52 of the main body 51 of the ball caster 50 disposed on the lower surface thereof is placed on the hole edge on the front side of the window hole 35 of the support plate 30, and the stop portion 53 is fitted in the window hole 35. The ball 55 is projected from the lower surface side by a predetermined dimension.
In this state, the screws 36 are respectively passed from the front through the insertion holes 37 formed in the mounting plate 34 of the support plate 30, and are tightened and fixed to the screw holes 42 of the mounted plate 41 on the back side. Thus, the presser plate 40 is attached in a cantilever manner in which the rear end side can be bent and displaced in the vertical direction with the front side edge fixed to the mounting plate 34 of the support plate 30 as the center.

On the other hand, the swing end portion of the upper surface 16 of the heat insulating door 15, specifically, a part of a sphere into which the ball 55 of the ball caster 50 fits at a position directly below the ball caster 50 when the heat insulating door 15 is closed. A fitting recess 60 is formed as a recess.
Here, the dimension from the lower surface of the pressing plate 40 to the lower surface of the ball 55 of the ball caster 50 is slightly smaller than the dimension from the lower surface of the pressing plate 40 to the bottom of the fitting recess 60 formed in the upper surface 16 of the heat insulating door 15. It is set to be large.
A cover 10 </ b> A is attached to the upper surface of the main body 10 so as to cover the upper side of the support plate 30.

Then, the effect | action of this embodiment is demonstrated.
When the heat insulating door 15 is closed and reaches its final stage, the holding plate 40 is elastically bent so that the back end is lifted around the end edge on the near side, and the ball 55 of the ball caster 50 is swung to the heat insulating door 15. As shown in FIG. 5, when the magnet packing 17 is attracted to the magnet 18 and is closed in a close normal position as shown in FIG. 5, the presser plate 40 is restored and displaced so that the inner end is lowered. The ball 55 is fitted and pressed into the fitting recess 60, and a simple lock is applied. Thereby, the adhesiveness with respect to the front opening part 13 of the heat insulation door 15 is raised more.

  In this embodiment, when adjusting the pressing force of the ball 55, the elastic force of the pressing plate 40 itself is changed by changing the thickness or material of the pressing plate 40 while using the standard ball caster 50. It can respond. In addition, the ball caster 50 can be arranged only by screwing such that the ball caster 50 is fitted to the holding plate 40 and the holding plate 40 can be fixed to the support plate 30 with screws. As a result, it can cope with low cost.

Since the presser plate 40 is attached in a cantilever shape with its front edge fixed, as shown in FIG. 5, the back end of the presser plate 40 is inclined obliquely upward, and the ball caster 50 In this state, the ball 55 is pressed against the fitting recess 60, and in this state, the force in the direction pressed against the front opening 13 acts on the heat insulating door 15, thereby further increasing the degree of adhesion of the heat insulating door 15. be able to.
Further, by performing the screwing operation from the front side with a large space, the presser plate 40 can be attached to the support plate 30, and the presser plate 40 can be attached efficiently.

<Embodiment 2>
FIG. 6 shows Embodiment 2 of the present invention. In the second embodiment, the mounting height of the presser plate 40 is changed compared to the first embodiment.
Specifically, the attachment position of the presser plate 40 with respect to the support plate 30 is such that the distance a between the lower surface of the presser plate 40 and the upper surface of the support plate 30 is smaller than the thickness b of the flange 52 of the main body 51 of the ball caster 50. Is set to such a position.

  With such a setting, the position on the near side of the flange 52 of the main body 51 of the ball caster 50 hits the support plate 30, and the back end of the presser plate 40 is attached in advance so as to be inclined obliquely upward. Is closed and the ball 55 of the ball caster 50 is pressed into the fitting recess 60 of the heat insulation door 15 and pressed against the heat insulation door 15 against the front opening 13 as shown by the arrow in FIG. Directional force F acts to increase the degree of adhesion of the heat insulating door 15. It should be noted that the direction of action of the force F is slightly exaggerated.

<Embodiment 3>
FIG. 7 shows Embodiment 3 of the present invention. In the third embodiment, the insertion hole 37A of the screw 36 formed in the mounting plate 34 of the support plate 30 is formed in a long hole shape that is long in the lateral direction. Other structures are the same as those in the first embodiment.
In such a structure, it is possible to shift the mounting position of the presser plate 40 in the left-right direction using the long hole-shaped insertion hole 37A, and even if the support position of the heat insulating door 15 is shifted in the left-right direction. The ball 55 of the ball caster 50 fixed to the press plate 40 and the fitting recess 60 on the heat insulating door 15 side can be aligned.

<Embodiment 4>
A fourth embodiment of the present invention will be described with reference to FIGS. In the fourth embodiment, as shown in FIG. 8, the auxiliary plate formed to rise at an acute angle with respect to the presser plate 40 at the end of the presser plate 40 </ b> A opposite to the end edge where the attached plate 41 is formed. The attached plate 45 is formed, and a screw hole 42 is also formed in the auxiliary attached plate 45.
In this structure, as shown in FIG. 9, when the auxiliary mounting plate 45 rising at an acute angle is applied to the mounting plate 34 of the support plate 30 and fastened with screws 36, the inner end of the presser plate 40A is inclined obliquely upward. When the heat insulating door 15 is closed and the ball 55 of the ball caster 50 is fitted into the fitting recess 60 of the heat insulating door 15 and pressed against the heat insulating door 15, the direction is pressed against the front opening 13. Thus, the degree of adhesion of the heat insulating door 15 is increased. This is convenient when adjusting to increase the degree of adhesion.

  As a modification, as shown in FIG. 10, the auxiliary plate formed at the end edge of the presser plate 40 </ b> B opposite to the end edge where the attached plate 41 is formed is raised at an obtuse angle with respect to the presser plate 40 </ b> B. The mounted plate 46 may be formed. When the auxiliary mounting plate 46 rising at an obtuse angle is applied to the mounting plate 34 of the support plate 30 and fastened with the screw 36, the back end of the presser plate 40B is attached in advance in a posture inclined obliquely downward, and the heat insulating door When 15 is closed and the ball 55 of the ball caster 50 is fitted and pressed into the fitting recess 60 of the heat insulating door 15, a force in a direction away from the front opening 13 acts on the heat insulating door 15, and the heat insulating door 15. The adhesion degree of is weakened. This is convenient for adjusting the degree of adhesion so that the opening operation of the heat insulating door 15 is facilitated.

<Embodiment 5>
FIG. 11 shows Embodiment 5 of the present invention. In the fifth embodiment, the attachment positions T of the presser plate 40 provided with the window holes 35 and the insertion holes 37 of the two screws 36 are set symmetrically on the left and right ends of the support plate 30.
Even when the heat insulating door 15 is supported on either the left edge or the right edge of the front opening 13 so as to be swingable and openable, it can be dealt with only by providing the common support plate 30.

<Embodiment 6>
Embodiment 6 of the present invention will be described with reference to FIGS. In the sixth embodiment, as shown in FIG. 12, the upper surface 16 </ b> A in which the fitting recess 60 in the heat insulating door 15 is formed is formed as an inclined surface that is inclined downward at an inclination angle α toward the back surface side. .
In this structure, before being locked as shown in FIG. 13, the ball 55 of the ball caster 50 has a small allowance when it rides on the upper surface 16 </ b> A from the corner of the back surface on the swing end side of the heat insulating door 15. The same corner is less likely to be worn and durability is improved.

<Embodiment 7>
FIG. 14 shows a seventh embodiment of the present invention. In the seventh embodiment, the fitting recess 60 </ b> A provided at the swinging end portion of the upper surface 16 of the heat insulating door 15 so as to fit the ball 55 of the ball caster 50 is formed in a horizontally long shape along the width direction of the heat insulating door 15. Has been.
In this structure, even when the support position of the heat insulating door 15 is shifted in the left-right direction, the ball 55 of the ball caster 50 fixed to the presser plate 40 is fitted and locked in the fitting recess 60A on the heat insulating door 15 side. That is guaranteed.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The support member that supports the ball caster may be a support plate that is narrow enough to attach the press plate, and is not limited to a plate shape, but may be any shape as long as the press plate can be supported elastically. Does not matter.
(2) The presser plate to which the ball caster is attached may be attached to a support plate that can be elastically bent in the vertical direction.
(3) The shape of the ball caster is not limited to that exemplified in the above embodiment, and any other shape can be used as long as the ball is accommodated in the main body so as to freely rotate and the lower side protrudes from the lower surface of the main body. It may be a shape.

(4) The present invention can be similarly applied to a door device of a type in which a normal packing without a magnet is mounted on the back surface of the heat insulating door.
(5) The present invention is not limited to the quick cooler illustrated in the above embodiment, but is a type of cooling in which a heat insulating door is supported on the side edge of the front opening formed in the storage body so as to be swingable and openable around the vertical axis. Applicable to all storage.
(6) Further, the present invention is not limited to the cooling storage, and can be widely applied to all storages provided with a swing opening / closing door device around the vertical axis.

  DESCRIPTION OF SYMBOLS 10 ... Cooling-body main body (storage main body) 13 ... Front opening part 14 ... Upper edge part (front opening part 13) 15 ... Heat insulation door (door) 16, 16A ... Upper surface (of heat insulation door 15) 30 ... Support plate (support) 34) Mounting plate 35 ... Window hole 36 ... Screw 37, 37A ... Insertion hole 40, 40A, 40B ... Holding plate 41 ... Mounted plate 42 ... Screw hole 44 ... Mounting hole 45 ... Auxiliary mounted plate 46 ... Auxiliary 50 ... Ball caster 51 ... Main body 52 ... Flange 55 ... Ball 57 ... Screw 60, 60A ... Fitting recess R ... Locking mechanism T ... Installation location

Claims (9)

In the side edge of the front opening formed in the storage body, the door is supported so that it can swing open and close around the vertical axis,
A support member is provided on the upper edge of the front opening at a position corresponding to the upper side of the swinging end of the closed door, and a presser plate having a substantially horizontal posture is provided on the support member in the vertical direction. It is attached so that it can be bent, and a ball caster is attached downward to this presser plate,
A fitting recess into which a ball of the ball caster is fitted when the door is closed is formed on the swinging end of the upper surface of the door ,
The storage door device according to claim 1, wherein the ball caster is configured to be locked when the ball is pressed against the fitting recess by an elastic force of the presser plate . In the side edge of the front opening formed in the storage body, the door is supported so that it can swing open and close around the vertical axis,
A support member is provided on the upper edge of the front opening at a position corresponding to the upper side of the swinging end of the closed door, and a presser plate is attached to the support member so as to be elastically deformable in the vertical direction. The ball caster is attached to this presser plate downward,
A fitting recess into which a ball of the ball caster is fitted when the door is closed is formed on the swinging end of the upper surface of the door,
Further, the support member is formed by a support plate provided so as to protrude horizontally toward the front side at the upper edge of the front opening, and a window hole is opened in the support plate and attached to the protruding edge. As the plate rises and is formed,
The front edge of the presser plate with the ball caster attached downward is attached to the attachment plate in a cantilevered manner, and the ball of the ball caster projects to the lower surface side through the window hole of the support plate. door apparatus of savings built warehouse shall be the features that you are. The ball caster has a structure in which the ball is accommodated in the main body so that the ball can freely rotate and the lower side protrudes from the lower surface of the main body, and a flange is formed at the bottom of the main body,
The ball caster is fixed by inserting the main body into a mounting hole opened in the presser plate from the lower surface side, applying the flange to a hole edge on the back side of the mounting hole, and fastening with a screw.
The mounting position of the presser plate with respect to the support plate is set such that the distance between the lower surface of the presser plate and the upper surface of the support plate is smaller than the thickness of the flange. Item 3. The storage door device according to Item 2. In the mounting plate of the support plate, two screw insertion holes are formed side by side in the horizontal direction, and at the front edge of the presser plate, A mounting plate that hits the back side of the mounting plate is formed upright, and two screw holes are formed in the mounting plate corresponding to the insertion holes, and each screw is passed through the corresponding insertion hole to 4. The storage door apparatus according to claim 2, wherein the presser plate is attached in a cantilever manner by being screwed into the screw hole. 5. The storage door device according to claim 4, wherein the insertion hole formed in the mounting plate of the support plate is formed in a horizontal long hole shape. An auxiliary mounting plate is formed at the edge of the holding plate opposite to the edge on which the mounting plate is formed. The auxiliary mounting plate is formed at an acute angle or an obtuse angle with respect to the holding plate. 6. The storage door apparatus according to claim 4 or 5, wherein the screw hole is formed in the mounted plate. The support plate has a length comparable to the lateral width dimension of the front opening, and the attachment positions of the press plate are set symmetrically on both left and right ends of the support plate. The storage door apparatus according to any one of claims 2 to 6. The upper surface of the swing end side in which the fitting concave portion is formed in the door is formed as an inclined surface having a downward slope toward the back surface side. The storage door apparatus according to claim 1. 9. The fitting recess formed in the swinging end portion of the upper surface of the door is formed in a horizontally long shape along the width direction of the door. The storage door device according to item.

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