CN107804582B

CN107804582B - Cold insulation box

Info

Publication number: CN107804582B
Application number: CN201710506305.3A
Authority: CN
Inventors: 菊地淳; 山崎光洋
Original assignee: Globeride Inc; Nissen Chemitec Corp
Current assignee: Globeride Inc; Nissen Chemitec Corp
Priority date: 2016-09-09
Filing date: 2017-06-28
Publication date: 2020-03-31
Anticipated expiration: 2037-06-28
Also published as: TWI659909B; KR20180028944A; KR102408669B1; TW201811630A; CN107804582A

Abstract

The invention provides a cold insulation box, which can inhibit deformation and damage of an operation part. A cold insulation box (100) according to the present invention comprises: a box body (1) having an upper opening (10) with an upper surface opened; a cover member (2) that closes the upper opening (10); a lock mechanism (4) that maintains the closed state of the box body (1) and the lid member (2); and an operation section (5) for releasing the lock of the lock mechanism (4), wherein an operation section recess (20) for accommodating the operation section (5) is formed in the upper surface (2a) of the cover member (2), and the operation section (5) is provided so as to be slidable along the bottom surface (25) of the operation section recess (20).

Description

Cold insulation box

Technical area

The invention relates to a cold insulation box.

Background

The cold insulation box is provided with a containing space which can contain the fished fish, beverage or food together with the cold insulation agent. The accommodating space is isolated from the outside air, so that the accommodated objects such as fish are prevented from being heated by the outside air.

Generally, a cooling box includes: a box body with an upper opening facing upward; a cover member closing an upper opening of the box body; and an opening/closing device for preventing the lid member in the closed state from rotating (not performing an opening operation).

Further, the opening/closing device includes: a lock mechanism that holds (locks) the lid member in the closed state so as to prevent the lid member from rotating in the opening direction; and an operation portion for releasing the lock of the lock mechanism.

However, the operation portion of the following patent document is disposed on the end portion side of the upper surface of the cover member and extends in the horizontal direction. When the user hangs the finger hook on the lower surface of the operation portion and lifts the operation portion upward, the operation portion is rotated (raised) to unlock the lock mechanism.

In the locked state of the lock mechanism, if the operation portion disposed on the upper surface side of the cover member protrudes upward from the upper surface of the cover member, the lock is accidentally released by the catch. Therefore, in order to avoid this, the operation member is housed in an operation portion recess recessed downward from the upper surface of the cover member.

Patent document 1: japanese patent No. 4963258 publication

Disclosure of Invention

However, according to the above-described technique, it is necessary to form a gap for inserting a finger under the operation portion. Therefore, the operation portion recess has a downwardly largely recessed shape, and the thickness of the cover member located below the operation portion recess has to be reduced, and as a result, the inside of the cover member cannot be filled with the heat insulating material below the operation portion recess, and the heat insulating property is lowered.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a refrigerator which can suppress a decrease in heat insulation.

In order to solve the above problem, the present invention is a cold insulation box including: a box body, the upper surface of which is opened; a cover member for closing the opening; cover members provided on a front end side and a rear end side of the cover member; a lock mechanism that maintains a closed state of the box body and the lid member; and an operation portion for releasing the lock of the lock mechanism, wherein an operation portion recess for accommodating the operation portion is formed on an upper surface of the cover member, a bottom surface of the operation portion recess is parallel to the upper surface of the cover member, the operation portion is formed of an operation plate, is provided below the upper surface of the cover member, is slidable along the bottom surface of the operation portion recess, and is released from the lock mechanism by being pressed along the bottom surface, the lock mechanism includes a lock plate abutting against the operation plate, the lock plate is disposed between a distal end portion of the cover member and the cover member, and the distal end portion of the operation plate is inserted into an opening formed between the operation portion recess and the cover member.

According to the above invention, since the moving direction of the operation portion is parallel to the upper surface of the cover member, it is not necessary to insert a finger into the lower surface of the operation portion, and the recess for the operation portion can be designed to be shallow.

That is, since the thickness of the lid member below the operating portion recess can be secured to a large extent, it is possible to dispose the heat insulating layer inside the lid member below the operating portion recess, or to fill the inside with a material constituting the lid member without making the inside hollow, and it is possible to suppress a decrease in heat insulating property.

Further, according to the conventional configuration, for example, during fishing, although there is a possibility that the operating member or the hook unit is damaged by the hook unit or the like entering the lower surface of the operating member, according to the present invention, the operating member or the hook unit can be prevented from being damaged because the hook unit or the like does not enter the lower surface of the operating member.

In the above invention, it is preferable that a heat insulating layer is provided in the lid member, and the heat insulating layer extends to a position below the operation portion recess.

According to the above configuration, since the heat insulating layer is provided below the operation portion recess, in other words, at the portion where the thickness of the lid member is the thinnest, the heat insulating property of the lid member can be significantly improved.

In the above invention, it is preferable that the outer peripheral end of the heat insulating layer extends to an outer side of the opening when the lid member is viewed in plan.

According to the above configuration, since the lid of the lid member covers all the openings with the heat insulating layer, the cold air of the stored substance is less likely to leak through the lid member, and the heat insulating property of the lid member is dramatically improved.

In the above invention, it is preferable that the operation portion has an operation surface, the operation portion recess has a pair of opposing surfaces extending in a sliding direction of the operation portion and opposing each other, and the pair of opposing surfaces have: a wide region having a width larger than that of the operation portion and in which the operation portion is disposed; and a narrow region located closer to the sliding direction than the operation surface and having a width smaller than the width of the operation portion, the narrow region having a width that decreases toward a widthwise center portion of the operation surface.

According to the above configuration, the user inserts the finger between the pair of opposing surfaces in the concave portion for operation portion, in other words, into the region having a narrow width, and presses the operation surface by touching the operation surface with the finger.

Here, since the narrow region is narrowed toward the widthwise center portion of the operation surface, the user is guided so that the center portion of the operation portion is pressed by touching the widthwise center portion of the operation surface with a finger. Therefore, the end of the operation portion can be prevented from being pressed and the operation portion can be prevented from being inclined, that is, one end contact can be prevented from occurring.

According to the present invention, it is possible to provide a cold insulation box capable of suppressing a decrease in heat insulation.

Drawings

Fig. 1 is an exploded perspective view of a heat-insulating box according to an embodiment.

Fig. 2 is a sectional view when the cold box is cut along line II-II of fig. 5.

Fig. 3 is a sectional view when the cold box is cut along line III-III of fig. 5.

Fig. 4 is a plan view of the partially exploded lid member as viewed from above.

Fig. 5(a) is a rear view of the cover member as viewed from the rear side (inside), and (b) is a sectional view showing the relationship between the guide portion and the operation portion.

Fig. 6(a) is a diagram showing a state where a finger is in contact with an operation surface or the like, (b) is a diagram showing a state where the grip portion is gripped, and (c) shows a state where the grip portion (the front side of the cover member) is lifted.

Fig. 7(a) is a perspective view of the operation unit as viewed from the upper left front side, (b) is a perspective view of the operation unit as viewed from the lower right rear side, and (c) is a bottom view of the operation unit as viewed from below.

Fig. 8 is a perspective view of the lock mechanism according to the modification example, viewed obliquely.

Description of the symbols

100-cold insulation box; 1-a box body; 2-a cover member; 3-an opening and closing device; 4-a locking mechanism; 5-an operation panel (operation section); 6. 6B-locking plate; 10-upper opening; 11-a housing space; 16-a mated portion; 20-a recess for an operating portion; 21-a grip portion; 22-a front holding surface; 23-rear holding surface; 30-a lid body; 40-a cover member; 41-cover upper wall portion; 42-a hood front wall portion; 42 a-central plane (one end side plane); 50-a body portion; 52 a-pressing surface; 53a, 153 a-worktop; 54-an extension; 56-side wall; 60. 60A, 160-pressed parts; 70, 70A-claw portion; 105-an operating part; L1-Width; s1-opening; s2 — gap.

Detailed Description

Next, the cooling box of the embodiment will be described with reference to the drawings.

Cold insulation box

As shown in fig. 1, the cooling box 100 according to the embodiment is a rectangular parallelepiped box longer in the left-right direction than in the front-rear direction.

The cooling box 100 includes: a box body 1 formed with an upper opening 10; a lid member 2 closing an upper opening 10 of the box body 1; and an opening/closing device 3.

The opening/closing device 3 prevents the lid member 2 in the closed state from being accidentally moved in the opening direction.

The opening/closing device 3 includes: a lock mechanism 4 (see fig. 2) for locking the closed state of the lid member 2; and an operation plate (operation portion) 5 for releasing the lock of the lock mechanism 4.

The cooling box 100 of the present embodiment has a front-rear symmetrical structure. That is, the box body 1 and the lid member 2 are symmetrical in the front-rear direction, and the opening/closing devices 3 are provided on both the front side and the rear side. Therefore, in the following description, the front structure will be described, and the rear structure will not be described.

Box body

The box body 1 is a bottomed rectangular cylindrical resin container having an upper opening 10 and a storage space 11 for storing an article thrown in from the upper opening 10, and includes a bottom wall portion, a front wall portion, a rear wall portion, a right wall portion, and a left wall portion.

As shown in fig. 2, each wall portion has a 3-layer structure including an outer wall 12 and an inner wall 13 made of resin, and a heat insulating material (for example, urethane foam, styrene foam, or the like) 14 interposed between the outer wall 12 and the inner wall 13, and is excellent in heat insulation.

As shown in fig. 1, the box body 1 is provided with: a recessed portion 15 recessed downward and into which a part of the cover member 2 is inserted from above (see fig. 2); and 2 engaged portions 16 provided in the recessed portion 15 and spaced apart from each other in the right-and-left direction.

The engaged portion 16 is a metal component provided with a bar-shaped bar portion 16a extending in the left-right direction, and constitutes the lock mechanism 4.

Cover member

The cover member 2 is formed in a rectangular shape in plan view.

The cover member 2 is provided with: an operation portion recess 20 recessed downward and accommodating the operation panel 5 therein; and a gripping portion 21 that can be gripped with fingers when moving the distal end portion of the lid member 2 in the opening direction (upward).

The lid member 2 is composed of a lid main body 30 and a cover member 40, the lid main body 30 is substantially rectangular in plan view, and the cover member 40 is provided on the front end side and the rear end side of the lid main body 30.

Therefore, the cap body 30 and the cover member 40 will be initially described, and the operation portion recess 20 and the grip portion 21 will be described later.

Cap body

As shown in fig. 3, the lid body 30 has a 3-layer structure including an outer wall 31 and an inner wall 32 made of resin, and a heat insulating material 33 interposed between the outer wall 31 and the inner wall 32, and is excellent in heat insulation. Although not shown, the heat insulator 33 has a rectangular shape when viewed from above, and has a shape similar to the upper opening 10 of the box main body 1.

The outer peripheral end 33a of the insulating material 33 is located outside the upper opening 10 (see the auxiliary line N in fig. 2 and 3), and the insulating material 33 covers the entire upper opening 10.

As shown in fig. 4, the center portion of the front end surface 34a of the cap body 30 is recessed rearward from both end portions. Therefore, the lock plate 6 (described later) can be disposed between the front end portion 34 of the cover body 30 and the cover member 40 (see fig. 3).

Further, projections 35 projecting forward are provided on both left and right sides of the front end surface 34a of the cover body 30.

The upper surface 36 of the lid body 30 bulges upward from the center portion of the left and right end edges and the front and rear end edges. Therefore, the upper surface of the lid body 30 is less likely to deform even if it receives a load from above.

Cover member

The cover member 40 extends in the left-right direction and constitutes the front end of the cover member 2.

As shown in fig. 2 and 5(a), the cover member 40 includes: a cover upper wall 41 that constitutes a part of the upper surface 2a of the cover member 2; a cover front wall portion 42 extending downward from the front side of the cover upper wall portion 41 to constitute the front side surface of the lid member 2; and a cover side wall 43 extending in the vertical direction along the left and right end edges of the cover front wall 42 and having an upper end continuous with the cover upper wall 41 (see fig. 5).

In fig. 5(a), the rearward projecting portion of the cover member 40 is dotted to facilitate viewing of the structure.

As shown in fig. 5(a), the rear surface of the hood front wall portion 42 is formed with: horizontal ribs 46 extending inward in the left and right direction from the left and right cover side walls 43; upper and lower ribs 47 extending upward from the left-right direction inner ends of the horizontal ribs 46 and continuing to the cover upper wall portion 41; and inner ribs 48 extending inward in the left-right direction from the upper and lower ribs 47.

Further, on the rear face of the hood front wall portion 42, there are provided: a plurality of rod supporting portions 44 for supporting the rod 16a in a manner to be engaged with the rod 16a of the engaged portion 16 (see the two-dot chain line); a shaft member 45 extending in the left-right direction; a lock plate 6 rotatably provided on the shaft member 45; and a force member 7.

The lock plate 6 and the biasing member 7 are the structures of the lock mechanism 4, and will be described later.

The horizontal ribs 46 and the upper and lower ribs 47 are used to increase the strength of the cover member 40. The horizontal rib 46, the upper and lower ribs 47, and the cover upper wall portion 41 form a rectangular frame portion 47 c.

The protrusion 35 of the lid main body 30 is fitted into the rectangular frame portion 47c, and the lid main body 30 and the cover member 40 are integrally coupled (see fig. 2).

Although not shown, a bolt penetrating the horizontal bead 46 from below is screwed into the protrusion 35, and the protrusion 35 is prevented from falling out of the rectangular frame portion 47 c.

The inner rib 48 is continuous with the middle portion in the vertical direction of the upper and lower ribs 47. Therefore, as shown in fig. 5(b), the inner rib 48, the upper and lower ribs 47, and the cover upper wall portion 41 constitute a substantially C-shaped wall portion. Hereinafter, the substantially C-shaped wall portion is referred to as a guide portion 49. The guide portion 49 will be described later.

As shown in fig. 2, a notch 44a is formed at the lower end of the bar support portion 44. Then, the rod portion 16a of the engaged portion 16 enters the notch 44a from below, and the rod portion 16a engages with the rod supporting portion 44.

As shown in fig. 5(a), the shaft member 45 penetrates the bar support portion 44 disposed in the left-right direction, and both end portions are fixed to the left and right cover side walls 43.

Recess for operation part

As shown in fig. 1, the operation portion recess 20 is used to dispose the operation panel 5 below the upper surface 2a of the cover member 2. This makes it relatively stable even if another cooling box 100 is placed on the upper surface 2a of the cover member 2.

As shown in fig. 4, the operation portion recess 20 is formed by downwardly recessing the top surface of the distal end portion 34 of the cover main body 30, and includes a bottom surface 25, a rear side surface 26, a left side surface 27, and a right side surface 28.

The width L1 between the left side surface 27 and the right side surface 28 gradually narrows from the front toward the rear.

The width L1 is formed such that the front side is larger than the width of the operation panel 5 and the rear side is smaller than the width of the operation panel 5, with the middle in the front-rear direction being a boundary. In other words, the width L1 has: a wide region formed to be larger than the width of the operation panel 5; and a narrow width region formed to be smaller than the width of the operation panel 5.

Therefore, the operation panel 5 can be disposed on the front side of the operation portion recess 20.

On the other hand, the operation plate 5 disposed in front of the operation portion recess 20 cannot move backward, and the rear end portion of the operation plate 5 does not abut against the rear side surface 26 of the operation portion recess 20.

As a result, a gap S2 into which a finger can be inserted is always formed between the rear surface 26 and the operation panel 5.

The left side surface 27 and the right side surface 28 correspond to a "pair of opposing surfaces" described in the claims.

As shown in fig. 3, the bottom surface 25 is located below the cover upper wall portion 41 of the cover member 40, and an opening S1 is formed between the bottom surface 25 of the operation portion recess 20 and the cover upper wall portion 41 of the cover member 40.

The cover member 2 is filled with a heat insulating material 33 at a portion located below the operation portion recess 20.

Gripping part

The grip portion 21 protrudes upward from the bottom surface 25 of the operation portion recess 20 and is convex in cross section. Therefore, the finger can grip the object by being pinched in the front-rear direction.

The grip 21 includes: a front grip surface 22 facing forward; a rear grip surface 23 facing in a direction (rearward) opposite to the front grip surface 22 in the operation portion recess 20; and an upper gripping surface 24 facing upward.

The rear grip surface 23 is formed by a rear end surface (operation surface 53a) of the operation plate 5 accommodated in the operation portion recess 20. As will be described in detail later.

The front grip surface 22 is formed by a central surface 42a of the cover front wall 42 (the center of the front end surface of the cover member 2).

As shown in fig. 1 and 4, the center surface 42a of the cover front wall 42 is recessed inward from the left and right end surfaces 42b and 42c of the cover front wall 42.

Thus, other heat-insulating boxes 100 are arranged without a gap on the front side of heat-insulating box 100, and even when there is no gap for inserting a finger between the front side surface of heat-insulating box 100 and other heat-insulating boxes 100, a space is formed between center surface 42a and the side surface of other heat-insulating boxes 100.

Therefore, a finger can be inserted into the space from above, and the finger can contact the front grip surface 22 (the central surface 42a of the cover front wall portion 42) to grip the grip portion 21.

The upper grip surface 24 is a surface for contacting the palm from above (see fig. 6). The upper gripping surface 24 is formed by a cover upper wall portion 41 of the cover member 40. Further, the upper grip surface 24 increases the contact area between the hand and the grip portion 21, and thus the grip can be surely performed.

Next, the lock mechanism 4 and the operation panel 5 constituting the opening/closing device 3 will be described.

As shown in fig. 5, the lock mechanism 4 includes the engaged portion 16 (see fig. 1 and 2), the lock plate 6, and the urging member 7.

Locking plate

The lock plate 6 is a resin plate-shaped member extending in the left-right direction.

The lock plate 6 is inserted through the shaft member 45 at the center in the vertical direction, and is rotatable about the shaft member 45.

The lock plate 6 includes: a pressed portion 60 located at the center in the left-right direction and extending upward from the shaft member 45; claw portions 70 located on both sides in the left-right direction and extending downward from the shaft member 45; and a connecting portion 80 for connecting the pressed portion 60 and the claw portion 70.

The pressed portion 60, the claw portion 70, and the coupling portion 80 of the lock plate 6 according to the present embodiment are integrally formed by resin molding.

Here, of the 2 claw portions 70, the claw portion 70 disposed on the right end side of the shaft member 45 is referred to as a 1 st claw portion 75, and the claw portion 70 disposed on the left end side of the shaft member 45 is referred to as a 2 nd claw portion 76.

One end of the urging member 7 is engaged with the horizontal rib 46, and the other end is engaged with the rear surface of the claw portion 70, and constantly applies a force to the claw portion 70 toward the rear surface of the cover front wall portion 42 (toward the front of the cooling box 100) (see an arrow in fig. 2). Therefore, a force is applied to the pressed portion 60 integrated with the claw portion 70 so as to move (rotate) rearward of the cooling box 100 (see an arrow in fig. 3).

The pressed portion 60 is located between the left and right upper and lower beads 47 and is pressed against a pressing surface 52a of the operating portion 5, which will be described later.

The pressed portion 60 includes: a 1 st pressed portion 61 constituting a right side portion; a 2 nd pressed portion 62 constituting a left side portion; and an intermediate pressed portion 63 constituting a central portion of the pressed portion 60.

In fig. 5, the two-dot chain line M is drawn to clarify the areas of the 1 st pressed portion 61, the 2 nd pressed portion 62, and the intermediate pressed portion 63.

The pressed portion 60 is formed to be long in the left-right direction. Therefore, the 1 st pressed portion 61 is closer to the 1 st claw portion 75 in the left-right direction distance (see L4 in fig. 5). Similarly, the 2 nd pressed portion 62 is closer to the 2 nd claw portion 76 in the left-right direction.

As shown in fig. 3, the upper end 60a of the pressed portion 60 extends to the vicinity of the cover upper wall portion 41 of the cover member 40 and is located above the bottom surface 25 of the operation portion recess.

The upper end 60a has a semicircular cross section.

As shown in fig. 2, the claw portion 70 includes: a plate portion 72 extending downward from the shaft member 45; and a projection 73 projecting forward from the lower end of the plate portion 72.

Since the urging member 7 urges the plate portion 72 forward, the front surface abuts on the rod portion 16a of the engaged portion 16, and the lock plate 6 is prevented from rotating.

The projection 73 abuts on the lower surface of the rod 16 a. Therefore, even if a force is applied to move the distal end side of the cover member 2 upward, the projection 73 is locked by the rod portion 16a, and is restricted (locked) so that the distal end side of the cover member 2 does not move upward. Thereby, the closed state of the lid member 2 is maintained.

Further, the cover member 2 is coupled to be rotatable about the rod portion 16a because the periphery of the rod portion 16a is surrounded by the rod supporting portion 44 and the claw portion 70.

Further, in the present embodiment, the plate portion 72 of the claw portion 70 is brought into contact with the rod portion 16a to lock the lock plate 6, but in the present invention, the tip of the projection 73 may be brought into contact with the rear surface of the cover front wall portion 42 to lock the lock plate 6.

Operation part

As shown in fig. 7, the operation panel 5 is a member having a substantially rectangular shape in plan view and long in the left-right direction. Further, the operation panel 5 is formed with: a front end surface, i.e., a pressing surface 52 a; and a rear end face, i.e., the operation face 53 a.

As shown in fig. 3, the operation panel 5 is housed in the front side of the operation portion recess 20 and placed on the bottom surface 25 of the operation portion recess 20.

The

rear corners

55, 55 of the operation plate 5 abut against the left and right side surfaces 27, 28 of the operation portion recess 20 (see the operation plate 5 disposed on the rear side in fig. 4), and are restricted from moving rearward.

In the operation portion recess 20, the operation surface 53a (rear end surface) of the operation plate 5 faces rearward, and constitutes a rear grip surface 23 of the grip portion 21.

The distal end portion of the operation panel 5 is inserted into an opening S1 formed between the operation portion recess 20 and the cover member 40.

The distal end portion of the operation plate 5 is disposed between the left and right upper and lower reinforcing ribs 47 (see fig. 5), and the pressing surface 52a of the operation plate 5 abuts against the pressed portion 60 of the lock plate 6.

Therefore, when a load larger than the urging force of the urging member 7 is applied to the operation plate 5 in the forward direction, the operation plate 5 slides forward (moves horizontally) while pressing the pressed portion 60. The detailed structure of the operation panel 5 will be described later.

Next, an opening operation method of the cover member 2 is explained with reference to fig. 6.

The method of opening the lid member 2 includes a step of gripping the grip portion 21 and a step of lifting the grip portion 21 upward.

As shown in fig. 6(a), the gripping unit 21 is gripped by placing the hand above the gripping unit 21 and directing the palm downward.

Next, the thumb is brought into contact with the front grip surface 22 (the center surface 42a of the cover member 40), and the palm is brought into contact with the upper grip surface 24 (the cover upper wall portion 41 of the cover member 40).

Thereafter, fingers other than the thumb are inserted into the gap S2 between the rear side surface 26 of the operation portion recess 20 and the operation surface 53a of the operation panel 5, and contact the rear grip surface 23 (operation surface 53 a).

The width L1 in the left-right direction of the gap S2 between the rear surface 26 and the operation surface 53a is formed to be narrower than the width of the operation panel 5 (see fig. 4), and it is difficult to bring a finger into contact with the left and right ends of the operation surface 53 a. Therefore, the finger is guided so as to contact the center portion of the operation surface 53 a.

Next, each finger is bent so as to approach the thumb and the other 4 fingers, and the grip portion 21 is gripped.

As a result, as shown in fig. 6(b), the operation surface 53a is pressed, the operation plate 5 moves forward, and the pressed portion 60 rotates. Thus, the engagement between the left and right claw portions 70 and the rod portion 16a (see fig. 2) of the engaged portion 16 is released, and the front side of the cover member 2 can be moved (rotated) upward.

When the pressed portion 60 abuts against the rear surface of the cover front wall portion 42, the lock plate 6 stops rotating. Therefore, the movement of the operation plate 5 in the forward direction is restricted, and the grip portion 21 can be gripped (gripped) in the forward and backward directions.

Here, for example, when only the left end portion of the pressing portion 60 is pressed (hereinafter, referred to as "one-end contact") due to the inclination of the pressing surface 52a, although the left-side pawl portion 70 is sufficiently rotated, the amount of rotation of the right-side pawl portion 70 is small, and there is a possibility that the engagement with the engaged portion 16 cannot be released.

Here, according to the embodiment, the finger is guided so as to contact the center portion of the operation surface 53a, in other words, so as to press the center portion of the operation surface 53a, and therefore, the possibility of the one-end contact is small. Therefore, the engagement between the claw portions 70 on both the left and right sides and the engaged portion 16 can be reliably released.

Next, the hand is moved upward while maintaining the state of gripping the gripping portion 21. As a result, the distal end side of the cover member 2 is lifted upward as shown in fig. 6 (c). Then, when the hand is subsequently moved upward, the lid member 2 is rotated about the rod portion 16a of the engaged portion 16 of the rear opening/closing device 3, and the upper opening 10 of the box main body 1 is opened.

The above is an opening operation method of the lid member 2. When the front grip portion 21 and the rear grip portion 21 are simultaneously operated, the lock mechanisms 4 provided on both the front and rear sides are unlocked, and the cover member 2 can be detached from the box body 1.

Next, the operation panel 5 will be described in detail.

As shown in fig. 7, the operation panel 5 includes: a main body 50 having a substantially rectangular shape in plan view; an operation portion rib 51 extending forward and backward in the vicinity of the center of the lower surface of the main body portion 50; a front wall 52 extending downward along the front end of the main body 50 and having a front face forming a pressing face 52 a; a rear wall 53 extending downward along the rear end of the main body 50 and having a rear surface forming an operation surface 53 a; an extending portion 54 extending obliquely upward from the upper end surface of the rear wall 53; a corner portion 55 extending downward from a corner on the rear side of the main body portion 50; and side walls 56 extending downward along the left and right edges of the main body 50.

As shown in fig. 7(a), an upper slide portion 50a projecting upward is formed on the front edge side of the upper surface of the main body portion 50.

As shown in fig. 7(b), a lower slider 51a having a width smaller than that of the operation portion rib 51 is formed on the lower surface of the operation portion rib 51.

As shown in fig. 3, the upper slide portion 50a slidably contacts the lower surface of the cover upper wall portion 41. The lower sliding portion 51a slidably abuts against the bottom surface 25 of the operation portion recess 20. The upper slider 50a and the lower slider 51a suppress the vertical movement of the operation panel 5. Further, as compared with the case where the upper surface of the main body 50 and the lower surface of the operation portion rib 51 abut against each other, the contact area can be reduced, and the operation plate 5 can be smoothly slid.

As shown in fig. 7(c), the front wall 52 extends linearly in the left-right direction, and the pressing surface 52a is a flat surface.

The rear wall 53 is curved and the central portion is recessed forward. Further, as corresponding to the rear wall 53, the extending portion 54 is also curved and the central portion is depressed forward.

Therefore, as shown in fig. 4, the gap S2 between the rear surface 26 of the operation portion recess 20 and the operation panel 5 is largest at the center portion as compared with the left and right sides, and can be guided so that a finger can be inserted into the center portion. As a result, the probability of the finger touching the center portion of the operation surface 53a increases, and one end of the operation panel 5 can be prevented from touching the pressed portion 60.

As shown in fig. 3, the extending portion 54 extends obliquely upward and rearward from the upper end edge of the operation surface 53 a.

Since the extending portion is present, as shown in fig. 6(c), when the grip portion 21 is gripped and the lid member 2 is opened, the extending portion 54 catches on the finger even if the operation surface 53a slides down from the finger. Therefore, operability at the time of opening operation of the lid member 2 can be improved.

On the other hand, when the lid member 2 is in the closed state, even if the user mistakenly hooks the finger catch on the extension portion 54 and performs the lifting operation, the finger is likely to fall off due to the inclination of the extension portion 54. Therefore, it is possible to prevent the operation panel 5 from being damaged by a load more than necessary.

As shown in fig. 7(b), the left and right side walls 56 are formed to be shorter in vertical length than the front wall 52 and the rear wall 53.

Further, an upper slide portion 50a is formed on the upper surface of the side wall 56, and a lower slide portion 51a is formed on the lower surface of the side wall 56.

As shown in fig. 5(b), the left and right side walls 56 are inserted into the guide portions 49 formed in the cover member 40.

The upper slide portion 50a of the side wall 56 slidably abuts against the lower surface of the upper wall (cover upper wall portion 41) of the guide portion 49. The lower sliding portion 51a of the side wall 56 slidably abuts on the upper surface of the lower wall (inner rib 48) of the guide portion 49.

Further, a lateral sliding portion 49a projecting from the upper and lower beads 47 into the guide portion 49 is slidably abutted on an outer surface 56a of the side wall 56.

The lateral sliding portion 49a extends in the front-rear direction and always abuts against the outer surface 56a of the side wall 56.

According to the above configuration, the contact area between the side wall 56 of the operation panel 5 and the guide portion 49 can be reduced, and the operation panel 5 can be smoothly slid.

Further, the lateral sliding portion 49a can hold the pressing surface 52a of the operation panel 5 in parallel with the pressed portion 60, and can prevent one end of the operation panel 5 from coming into contact with. As a result, the engagement between the claw portions 70 on both the left and right sides and the engaged portion 16 can be reliably released.

As described above, according to the embodiment, since the side surface of the cover member 2 (the central surface 42a of the cover member 40) is gripped by touching the side surface of the cover member 2 with a finger, the load acting on the operation plate 5 when the cover member 2 is lifted is reduced, and deformation and breakage of the operation plate 5 are suppressed.

Further, since the operation surface 53a constitutes the rear grip surface 23, the grip portion 21 is gripped to release the lock of the lock mechanism 4. Therefore, the operation of grasping the grasping portion 21 includes the operation of releasing the lock of the lock mechanism 4, and therefore, the operability is excellent and the convenience is high.

Further, according to the embodiment, since the upper grip surface 24 that can contact the palm is formed, the grip can be surely performed, and the opening operation of the lid member 2 is stable.

Further, since the cover member 40, which is a part of the upper surface 2a of the lid member 2, is used as the upper gripping surface 24, the lid member 2 is not complicated to manufacture.

In addition, according to the embodiment, the operation plate 5 moves along the bottom surface of the operation portion recess 20. In other words, the finger holder is not hung on the lower surface of the operation portion and is not lifted as in the conventional art.

Therefore, it is not necessary to form a space for inserting a finger below the operation panel 5, and the operation portion recess 20 can be designed to be shallow, while the thickness of the cover member 2 located below the operation portion recess 20 can be designed to be large (see L2 in fig. 3).

As a result, as in the present embodiment, the heat insulating material 33 can be provided inside the cover member 2 constituting the bottom wall of the operation portion recess 20, or the space between the outer wall 31 and the inner wall 32 does not need to be made hollow, but the outer wall 31 and the inner wall 32 can be filled with, for example, a resin material to be made solid, and a decrease in heat insulating property can be suppressed.

The portion of the cover member 2 located below the operation portion recess 20 is the thinnest portion of the cover member 2.

Therefore, if the heat insulating material 33 is provided inside the cover member 2 constituting the bottom wall of the operation portion recess 20 as in the present embodiment, the heat insulating property of the cover member 2 can be effectively improved.

Further, by providing the heat insulating material 33 in the cover member 2 constituting the bottom wall of the operation portion recess 20, the heat insulating material 33 covers the entire upper opening 10. Therefore, the cold air in the housing space 11 is less likely to leak to the outside through the cover member 2, and the heat insulating property of the cover member 2 is dramatically improved.

Although the embodiments have been described above, the present invention is not limited to the examples described in the embodiments.

For example, although the locking plate 6 in which the pressed portion 60 and the claw portion 70 are integrally formed is used in the present embodiment, the present invention is not limited to this, and may be configured by, for example, a 1 st rotating member 110 in which a pressed portion 60A is formed and a 2 nd rotating member 120 in which a claw portion 70A is formed, as shown in fig. 8.

The 1 st rotating member 110 is a member including a pair of

coupling portions

111 and 111, a pressed portion 60A, and a 1 st rod 112, the pair of

coupling portions

111 and 111 being supported rotatably by the 1 st shaft 131 and extending vertically, the pressed portion 60A being fixed above the

coupling portions

111 and 111, and the 1 st rod 112 being fixed below the

coupling portions

111 and 111.

Further, the 2 nd rotating member 120 includes: an upper plate portion 122 rotatably supported by the 2 nd shaft 132 and extending upward; and claw

portions

70A, 70A rotatably supported by the 2 nd shaft 132 and connected to the upper plate portion 122. The upper plate portion 122 is positioned behind the 1 st rod 112 and abuts against the 1 st rod 112.

According to the above configuration, when the operation portion (not shown) is moved forward (see arrow a), the pressed portion 60A is pressed, and the 1 st rotating member 110 rotates (see arrow B). Further, since the 1 st rod 112 presses the upper plate portion 122, the 2 nd rotating member 120 rotates (see arrow C), and the engagement of the claw portion 70A with the engaged portion, not shown, is released.

In the embodiment, the operation panel 5 includes the extending portion 54, but the extending portion 54 may not be included in the present invention.

Further, although the center portion of the operation surface 53a of the embodiment is concavely curved in the pressing direction, the present invention is not particularly limited and may be a flat surface.

Further, the gripping surface (the operation surface and the side surface of the cover member) may be formed with a plurality of grooves and a plurality of projections extending in the left-right direction.

This makes it difficult for the finger to slip off the operation surface or the like. Further, even when the field of vision is poor at night or the like, the presence or absence of the groove portion or the like is checked by touching with a finger, and the position of the grasping face can be grasped.

Claims

1. A cold insulation box is provided with:

a box body, the upper surface of which is opened;

a cover member for closing the opening;

cover members provided on a front end side and a rear end side of the cover member;

a lock mechanism that maintains a closed state of the box body and the lid member;

and an operation part for releasing the locking of the locking mechanism,

an operation portion recess for accommodating the operation portion is formed on the upper surface of the cover member,

the bottom surface of the recess for the operation portion is parallel to the upper surface of the cover member,

the operation portion is composed of an operation plate, is provided below an upper surface of the cover member, is slidable along the bottom surface of the operation portion recess, and is pressed along the bottom surface to release the lock of the lock mechanism,

the lock mechanism includes a lock plate abutting against the operation plate,

the lock plate is disposed between the front end portion of the cover member and the cover member,

the front end of the operation plate is inserted into an opening formed between the operation portion recess and the cover member.

2. A cold-keeping box according to claim 1,

a heat insulating layer is provided inside the cover member,

the heat insulating layer extends below the operation portion recess.

3. A refrigerator according to claim 2, wherein an outer peripheral end of the heat insulating layer extends to a position outside the opening when the lid member is viewed in plan.

4. A cold-keeping box according to claim 1 or 2,

the operation part is provided with an operation surface,

the operation portion recess has a pair of opposing surfaces extending in the sliding direction of the operation portion and opposing each other,

the pair of opposing faces have: a wide region having a width larger than that of the operation portion and in which the operation portion is disposed; and a narrow region which is located closer to the sliding direction than the operation surface and has a width smaller than that of the operation portion,

the narrow region is narrowed toward a widthwise central portion of the operation surface.

5. A cold-insulating box according to any one of claims 1 to 3,

the locking mechanism is composed of an engaged part arranged on the box body and a claw part arranged on the cover component in a freely rotating way,

the operating portion has a pressing surface for rotating the claw portion,

the cover member has a guide portion for guiding the operation portion,

the pressing surface is formed to be wider in width in a direction of a rotation axis of the claw portion,

the lock mechanism includes a pressed portion pressed against the pressing surface,

the claw part at least comprises a 1 st claw part and a 2 nd claw part which are separated from each other in the direction of the rotating shaft,

the pressed portion includes: a 1 st pressed portion connected to the 1 st claw portion and pressed toward one end side of the pressing surface;

and a 2 nd pressed portion connected to the 2 nd claw portion and pressed toward the other side of the pressing surface.

6. A cold-keeping box according to claim 5,

the operation portion has two side surfaces facing both sides in the direction of the rotation axis,

the guide portion has a sliding portion that slidably abuts against the guide portion to guide the both side surfaces.

7. An opening/closing device for a refrigerator according to claim 5,

the pressed portion has an intermediate pressed portion extending between the 1 st pressed portion and the 2 nd pressed portion and pressed toward a central portion of the pressing surface,

each end of the intermediate pressed portion is continuous with the 1 st pressed portion and the 2 nd pressed portion.