TWI659909B - Cool box - Google Patents

Abstract

An object of the present invention is to provide a cool box which can suppress deformation and breakage of an operation portion.

The solution of the present invention is a cold storage box 100 provided with: a box body 1 having an upper opening 10 with a top surface opening; a cover member 2 that closes the upper opening 10; a locking mechanism 4 that maintains the closed state of the box body 1 and the cover member 2; And the operation portion 5 to release the lock by the lock mechanism 4, and a recess portion 20 for the operation portion accommodating the operation portion 5 is formed on the top surface 2 a of the cover member 2. The operation portion 5 slides freely along the bottom surface 25 of the recess 20 for the operation portion. The ground is set.

Description

Cool box

The present invention relates to a cold box.

A storage space is formed in the cold storage box to store fish, drinks, or food that is caught together with the cooling agent. This storage space is isolated from the outside air, and the storage items such as fish are not heated by the outside air.

The cold storage box generally includes a box body formed with an upper opening that opens upward, a cover member that closes the upper opening of the box body, and an opening and closing device for preventing the closed cover member from rotating (without opening operation).

The opening and closing device includes a lock mechanism that holds (locks) the lid member in a closed state so that the cover member does not rotate in the opening direction, and an operation unit for releasing the lock of the lock mechanism.

However, the operation part of the following patent document is arrange | positioned at the edge part side of the top surface of a cover member, and extends in a horizontal direction. When the user hangs his finger on the bottom surface of the operation portion and lifts the operation portion upward, the operation portion is rotated (upright) to release the lock of the lock mechanism.

In addition, when the operation portion disposed on the top surface side of the cover member is locked by the lock mechanism, if the cover member projects upward from the top surface, the lock is unintentionally released. Therefore, in order to avoid this situation, the operating member is housed in the recessed portion for the operating portion recessed downward from the top surface of the cover member. Inside.

[Patent Document 1] Japanese Patent No. 4963258

However, according to the above technique, it is necessary to form a gap for inserting a finger into the bottom surface of the operation portion. Therefore, the recessed portion for the operating portion has a shape that is greatly recessed downward, and the thickness of the cover member located below the recessed portion for the operating portion has to be reduced. As a result, the insulating material cannot be filled under the recessed portion for the operating portion. The inside of the cover member causes a decrease in heat insulation.

The present invention has been made in order to solve such a problem, and it is an object of the present invention to provide a cool box that can suppress a decrease in heat insulation.

In order to solve the aforesaid problem, the present invention is a cold storage box, comprising: a box body with a top surface opening; a cover member to close the opening; a locking mechanism to maintain the closed state of the box body and the cover member; and an operation portion to release The locking by the locking mechanism is characterized in that a recessed portion for an operation portion that houses the operation portion is formed on a top surface of the cover member, a bottom surface of the recessed portion for the operation portion is parallel to a top surface of the cover member, and the operation portion It is composed of an operation panel, is disposed below the top surface of the cover member, and is slidably provided along the bottom surface of the recessed portion for the operation portion, and is pressed and released along the bottom surface by the lock mechanism. locking.

According to the aforementioned invention, since the moving direction of the operation portion is parallel to the top surface of the cover member, it is not necessary to insert a finger into the bottom surface of the operation portion, and the recess portion for the operation portion can be designed shallowly.

That is, since the thickness of the cover member below the recessed portion for the operation portion can be greatly ensured, a heat-insulating layer can be disposed inside the cover member that constitutes the recessed portion for the operation portion, or it is not necessary to make the interior hollow. Instead, it is filled with the material constituting the cover member, which can suppress a decrease in heat insulation.

In addition, according to the conventional structure, for example, in fishing, the fishing member or the like may enter the bottom surface of the operating member and the operating member or the fishing group may be damaged. It can avoid the damage of the operating member or fishing set.

Moreover, in the said invention, it is preferable that the heat insulation layer is arrange | positioned inside the said cover member, It is preferable that the said heat insulation layer extends below the said recessed part for operating parts.

According to the said structure, since the heat insulation layer is arrange | positioned under the recessed part for operating parts, in other words, the thinnest part in a cover member, the heat insulation property of a cover member improves especially.

Further, in the aforementioned invention, it is preferable that the outer peripheral end of the heat-insulating layer extends further outward than the opening in a plan view of the cover member.

According to the said structure, since the cover heat insulation layer covers the whole opening of a cover member, it is difficult for the cold air of a storage item to escape to the exterior through a cover member, and the heat insulation property of a cover member improves dramatically.

Further, in the aforementioned invention, the operation portion has an operation surface, the recess portion for the operation portion has a sliding direction extending from the operation portion, and one of the facing surfaces faces each other, and the width of the pair of facing surfaces has: The width of the operation portion is large, and the wide area in which the operation portion is disposed is more than one side located in the sliding direction instead of the operation surface. It is preferable that the width of the operation portion is a narrow area, and the narrow area is preferably narrow toward the central portion in the width direction of the operation surface.

According to the foregoing configuration, the user inserts a finger between a pair of facing surfaces in the recess for the operation portion, in other words, inserts a narrow area, and causes the finger to contact the operation surface and press the operation surface tightly.

Here, since the narrow area is narrowed toward the center portion in the width direction of the operation surface, the user is guided so that the finger contacts the center portion in the width direction of the operation surface and presses the center portion of the operation portion. Therefore, it is possible to prevent the end portion of the operation portion from being pressed tightly and the operation portion to be inclined, that is, to prevent single-end contact.

According to the present invention, it is possible to provide a cold storage box which can suppress a decrease in heat insulation.

1‧‧‧ box body

2‧‧‧ cover member

2a‧‧‧Top

3‧‧‧ opening and closing device

4‧‧‧ lock mechanism

5‧‧‧ operation panel (operation part)

6, 6B‧‧‧Locking plate

10‧‧‧ upper opening

11‧‧‧Storage space

12, 31‧‧‧ outer wall

13, 32‧‧‧ inner wall

14, 33‧‧‧ Insulation materials

15‧‧‧ undercut

16‧‧‧ Locked

16a‧‧‧stick

20‧‧‧ Recess for operating part

21‧‧‧ holding section

22‧‧‧ Front grip surface

23‧‧‧ rear grip surface

24‧‧‧ Upper holding surface

25‧‧‧ underside

26‧‧‧ rear side

27‧‧‧ Left side

28‧‧‧ right side

30‧‧‧ cover body

33a‧‧‧outer end

34‧‧‧ front end

34a‧‧‧front

35‧‧‧ protrusion

36‧‧‧Top

40‧‧‧ cover member

41‧‧‧ cover upper wall

42‧‧‧ cover front wall

42a‧‧‧center plane (one side, side surface)

42b‧‧‧left end face

42c‧‧‧Right end face

43‧‧‧ hood side wall

44‧‧‧ rod support

45‧‧‧ Shaft member

46‧‧‧ horizontal rib

47‧‧‧ ribs

48‧‧‧ inside rib

49‧‧‧Guide

49a‧‧‧cross slide

50‧‧‧Body

50a‧‧‧upper sliding part

51‧‧‧ rib for operation part

51a‧‧‧lower sliding part

52‧‧‧ front wall

52a‧‧‧Pressing surface

53‧‧‧ back wall

53a‧‧‧Control surface

54‧‧‧ extension

55‧‧‧ Corner

56‧‧‧ sidewall

56a‧‧‧outer surface

60, 60A‧‧‧Pressed part

60a‧‧‧top

61‧‧‧The first pressed part

62‧‧‧Second pressed section

63‧‧‧ Middle squeezed part

70, 70A‧‧‧claw

72‧‧‧ Board

73‧‧‧ protrusion

75‧‧‧first claw

76‧‧‧ second claw

80‧‧‧ Connection Department

100‧‧‧ cool box

110‧‧‧first rotating member

111‧‧‧ Connection Department

112‧‧‧ First Stick

120‧‧‧second rotating member

122‧‧‧ Upper Board

131‧‧‧ first axis

132‧‧‧Second axis

L1‧‧‧Width

L2‧‧‧thickness

S1‧‧‧ opening

S2‧‧‧ Clearance

FIG. 1 is an exploded perspective view of the cool box of the embodiment.

FIG. 2 is a cross-sectional view of the cooling box taken along a line II-II in FIG. 5.

FIG. 3 is a cross-sectional view of the cooling box taken along a line III-III in FIG. 5.

4 is a plan view of a cover member partially exploded when viewed from above.

Fig. 5 (a) is a rear view of the cover member viewed from the rear side (inside), and (b) is an end 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 brought into contact with an operation surface, etc., (b) is a diagram of a state where a grip is held, and (c) is a state where a grip (a front side of a cover member) is raised .

Fig. 7 (a) is an oblique view of the operating unit viewed from the upper left side, (b) is an oblique view of the operating unit viewed from the lower right side, and (c) is an operating unit viewed from below. Bottom view.

FIG. 8 is a perspective view of a locking mechanism according to a modification, which is viewed obliquely. FIG.

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

(Cold box)

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

The cold storage box 100 includes a box body 1 having an upper opening 10 formed thereon, a cover member 2 that closes the upper opening 10 of the box body 1, and an opening and closing device 3.

The opening / closing device 3 is a member for preventing the cover member 2 in the closed state from being unintentionally moved to the opening direction.

The opening and closing device 3 includes a lock mechanism 4 (see FIG. 2) that locks the closed state of the cover member 2, and an operation panel (operation portion) 5 that releases the lock by the lock mechanism 4.

In addition, the cool box 100 of this embodiment has a symmetrical structure. That is, the box body 1 and the cover member 2 are symmetrically formed front-rear, and the opening-closing device 3 is disposed on both the front side and the rear side. Therefore, the configuration on the front side is described in the following description, and the description of the configuration on the rear side is omitted.

(Box body)

The box body 1 is a bottomed rectangular cylindrical resin container formed with an upper opening 10 and a storage space 11 for storing articles dropped in the upper opening 10, and includes a bottom wall portion, a front wall portion, a rear wall portion, and a right wall portion And the left wall.

As shown in FIG. 2, each wall portion includes an outer wall 12 and an inner wall made of resin. 13; heat insulating material (for example, urethane foam, styrene foam, etc.) between the outer wall 12 and the inner wall 13 3-layer structure with excellent heat insulation.

As shown in FIG. 1, an upper end surface of a front wall portion of the box body 1 is provided with a recessed portion 15 (see FIG. 2) recessed downward and a portion of the cover member 2 entering from above; and provided in the recessed portion 15. The two engaged portions 16 are separated from each other.

The engaged portion 16 is a metal component including a rod-shaped rod portion 16 a 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 front end side of the top surface 2a of the cover member 2 is provided with a recessed portion 20 for an operation portion that is recessed downward and accommodates the operation panel 5 therein; The holding portion 21 can be held by fingers.

The cover member 2 includes a cover body 30 having a substantially rectangular shape in plan view, and a cover member 40 disposed on the front end side and the rear end side of the cover body 30.

Therefore, first, the cover body 30 and the cover member 40 will be described, and then the operation portion recessed portion 20 and the grip portion 21 will be described.

(Cover body)

As shown in FIG. 3, the cover body 30 has a three-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 has excellent heat insulation properties. In addition, although not specifically illustrated, The heat insulating material 33 has a rectangular shape as viewed from above, and has a shape similar to the upper opening 10 of the box body 1.

In addition, the outer peripheral end 33 a of the heat insulating material 33 is located further outside than the upper opening 10 (refer to the auxiliary line N of FIGS. 2 and 3), and the heat insulating material 33 covers the entirety of the upper opening 10.

As shown in FIG. 4, the front end surface 34 a of the cover body 30 has a central portion recessed rearwardly than 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, on the left and right sides of the front end surface 34 a of the cover body 30, protrusions 35 protruding forward are provided.

In addition, the top surface 36 of the cover main body 30 has a center portion that bulges upward from left and right end edges and front and rear end edges. Therefore, it is difficult for the top surface of the cover body 30 to deform even if it receives a load from above.

(Covering member)

The cover member 40 is a component that extends in the left-right direction to constitute the front end portion of the cover member 2.

As shown in FIGS. 2 and 5 (a), the cover member 40 includes a cover upper wall portion 41 constituting a part of the top surface 2 a of the cover member 2, and a cover member 2 extending from the front side of the cover upper wall portion 41 to the lower portion. The cover front wall portion 42 on the front side; and the cover side wall 43 (refer to FIG. 5) extending along the left and right end edges of the cover front wall portion 42 in the up-down direction and having the upper end connected to the cover upper wall portion 41.

In addition, in FIG. 5 (a), in order to make the structure easier to see, a portion protruding behind the cover member 40 is painted in dots.

Moreover, as shown in FIG. 5 (a), behind the cover front wall portion 42, As ribs protruding from the cover front wall portion 42 to the rear, horizontal ribs 46 extending from the left and right cover side walls 43 to the inner side in the left-right direction are formed; The upper wall portion 41 has upper and lower ribs 47, and inner ribs 48 extending from the upper and lower ribs 47 to the left-right inner side.

In addition, a plurality of rod support portions 44 that are engaged with the rod portion 16a (see the two-point chain line) of the engaged portion 16 to support the rod portion 16a are provided behind the cover front wall portion 42 and extend in the left-right direction. A shaft member 45; a lock plate 6 rotatably arranged on the shaft member 45; and a pushing member 7.

The lock plate 6 and the urging member 7 are configured by 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 covering member 40. The horizontal rib 46, the upper and lower ribs 47, and the cover upper wall portion 41 constitute a rectangular rectangular frame portion 47c.

A protrusion 35 of the cover body 30 is fitted into the rectangular frame portion 47c, and the cover body 30 and the cover member 40 are integrated with each other (see FIG. 2).

In addition, although not shown in particular, a screw that penetrates the horizontal rib 46 from below is screwed to the protrusion 35 so that the protrusion 35 does not fall out of the rectangular frame portion 47c.

The inner rib 48 is continued to 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 slightly C-shaped wall portion. Hereinafter, the C-shaped wall portion is referred to as a guide portion 49. The description of the guide portion 49 will be described later.

As shown in FIG. 2, a notch 44 a is formed at the lower end of the rod support portion 44. The rod portion 16a of the engaged portion 16 enters the notch 44a from below, The rod portion 16 a is engaged with the rod support portion 44.

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

(Concave part for operation part)

As shown in FIG. 1, the recessed portion 20 for an operation portion is used to arrange the operation plate 5 below the top surface 2 a of the cover member 2. According to this, even if another cold storage box 100 is placed on the top surface 2 a of the cover member 2, it is stable.

As shown in FIG. 4, the recess 20 for the operation portion is formed by recessing the top surface of the front end portion 34 of the cover body 30 downward, and includes a bottom surface 25 and a rear surface 26, a left surface 27 and a right surface 28.

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

The width L1 is formed such that the middle of the front and rear directions is a boundary line, and the front side has a larger width than the operation panel 5 and the rear side has a smaller width than the operation panel 5. In other words, the width L1 includes a wider area formed by the width of the operation panel 5 and a narrow area formed by the width of the operation panel 5.

Therefore, the operation panel 5 can be arranged on the front side of the operation portion recessed portion 20.

On the other hand, the operation plate 5 disposed on the front side of the operation portion recess 20 cannot be moved rearward so that the rear end portion of the operation plate 5 does not abut the rear side surface 26 of the operation portion recess 20.

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

In addition, the left side surface 27 and the right side surface 28 have a structure corresponding to [a pair of opposing surfaces] described in the scope of the patent application.

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 portion S1 is formed between the bottom surface 25 of the operating 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 in a portion located below the recess 20 for the operation portion.

(Grip section)

The grip portion 21 projects further upward than the bottom surface 25 of the recess portion 20 for the operation portion, and is convex in cross section. Therefore, it can be grasped by pinching the fingers in the front-rear direction.

The gripping portion 21 includes a front gripping surface 22 facing forward, a gripping surface 23 facing backward in the direction opposite to the front gripping surface 22 (rearward) in the recess portion 20 for the operation portion, and a gripping surface 24 facing upward.

The rear grip surface 23 is constituted by a rear end surface (operation surface 53 a) of the operation panel 5 housed in the operation portion recess 20. The details will be described later.

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

As shown in FIGS. 1 and 4, the center surface 42 a of the cover front wall portion 42 is recessed inwardly than the left end surface 42 b or the right end surface 42 c of the cover front wall portion 42.

According to this, other cold storage boxes 100 are arranged without a gap on the front side of the cold storage box 100, and even if there is no gap in which a finger is inserted between the front side of the cold storage box 100 and other cold storage boxes 100, the center surface 42a and other A space is also formed between the sides of the cold storage box 100.

Therefore, by inserting a finger into the space from above, the finger can be brought into contact with the front holding surface 22 (the central surface 42 a of the cover front wall portion 42) to hold the holding portion 21.

The upper grip surface 24 is a surface for contacting the palm from above (see FIG. 6). The upper grip surface 24 is configured by a cover upper wall portion 41 of the cover member 40. In addition, the contact area between the hand and the holding portion 21 is increased by the upper holding surface 24, and the holding can be performed firmly.

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

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

(Lock plate)

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

The locking plate 6 is penetrated by the shaft member 45 in the central portion in the vertical direction, and is rotatable around the shaft member 45.

The locking plate 6 includes a pressed portion 60 located at the central portion in the left-right direction and extending upward from the shaft member 45; claw portions 70 located at both sides of the left-right direction and extending downward from the shaft member 45; and a connected pressed portion 60 Connection portion 80 with the claw portion 70.

In addition, the lock plate 6 of this embodiment is integrally formed by resin molding by the pressed portion 60, the claw portion 70, and the connection portion 80.

Here, of the two claw portions 70, the claw portion 70 disposed on the right end side of the shaft member 45 is referred to as a first claw portion 75, and the claw portion 70 disposed on the left end side of the shaft member 45 is referred to as a second claw.部 76。 76.

In addition, one end of the urging member 7 is locked to the horizontal rib 46, and the other end is locked to the back of the claw portion 70, and the claw portion 70 is always pushed toward the back of the cover front wall portion 42 (toward the front of the cool box 100) (see Arrow in Figure 2). So with the claw The integrated pressed portion 60 of 70 is pushed to move (rotate) to the rear of the cool box 100 (refer to the arrow in FIG. 3).

The pinched portion 60 is located between the left and right upper and lower ribs 47 and is a portion that is pinched against a pinched surface 52 a described later of the operation portion 5.

The pressed portion 60 includes a first pressed portion 61 constituting a right portion, a second pressed portion 62 constituting a left portion, and a middle pressed portion 63 constituting a central portion of the pressed portion 60.

In addition, in FIG. 5, in order to make the areas of the first pressed portion 61, the second pressed portion 62, and the intermediate pressed portion 63 clear, a two-dot chain line M is drawn.

The pressed portion 60 is formed long in the left-right direction. Therefore, the distance in the left-right direction between the first pressed portion 61 and the first claw portion 75 (see L4 in FIG. 5) becomes relatively short. Similarly, the distance between the second pressed portion 62 and the second claw portion 76 in the left-right direction is relatively short.

As shown in FIG. 3, the upper end 60 a 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 recess portion for the operation portion.

In addition, the upper end 60a is formed in a semicircular shape in 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 protrusion 73 protruding from the lower end of the plate portion 72 forward.

Since the plate portion 72 is pushed forward by the urging member 7, the front portion abuts on the rod portion 16 a of the engaged portion 16, and the lock plate 6 stops rotation.

The protrusion 73 abuts the bottom surface of the rod portion 16a. Therefore, even if Force is applied to move the front end side of the cover member 2 upward, and the protrusion 73 is also locked to the rod portion 16a, and is restricted (locked) so that the front end side of the cover member 2 does not move upward. Accordingly, the closed state of the cover member 2 is maintained.

In addition, since the periphery of the rod portion 16a is surrounded by the rod support portion 44 and the claw portion 70, the cover member 2 is rotatably connected around the rod portion 16a.

In addition, in this embodiment, although the plate portion 72 of the claw portion 70 abuts on the rod portion 16a to prevent the lock plate 6 from rotating, the present invention may also abut the tip of the projection 73 against the cover front wall portion. 42 to stop the lock plate 6 from turning.

(Operation section)

As shown in FIG. 7, the operation panel 5 has a substantially rectangular shape in plan view, and is a component formed long in the left-right direction. Further, the operation panel 5 is formed with a pressing surface 52a at the front end surface and an operation surface 53a at the rear end surface.

As shown in FIG. 3, the operation panel 5 is housed on the front side of the recessed portion 20 for an operation portion, and is placed on the bottom surface 25 of the recessed portion 20 for an operation portion.

The corner portions 55 and 55 on the rear side of the operation panel 5 abut the left side surface 27 and the right side surface 28 of the operation unit recess 20 (see the operation panel 5 arranged on the rear side in FIG. 4), and the rearward movement is restricted.

The operation surface 53 a (rear end surface) of the operation panel 5 faces rearward in the operation portion recessed portion 20, and constitutes a rear holding surface 23 of the holding portion 21.

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

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

Therefore, a load facing the front and greater than the urging force of the urging member 7 acts on the operation panel 5, and while pressing the pressed portion 60, the operation panel 5 slides (horizontally moves) forward. The detailed configuration of the operation panel 5 will be described later.

Next, a method of opening the cover member 2 will be described with reference to FIG. 6.

The method of opening the cover member 2 is composed of a procedure for holding the gripping part 21 and a procedure for lifting the gripping part 21 upward.

As shown in FIG. 6 (a), the procedure for holding the holding portion 21 first places a hand above the holding portion 21, and the palm faces downward.

Next, the thumb is brought into contact with the front grip surface 22 (the central 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).

Furthermore, a finger other than the thumb is inserted into the gap S2 between the rear side surface 26 of the recess 20 for the operation portion and the operation surface 53a of the operation panel 5 to contact the rear grip surface 23 (operation surface 53a).

In addition, the width L1 in the left-right direction in the gap S2 between the rear side surface 26 and the operation surface 53a is narrower than that of the operation panel 5 (see FIG. 4), and it is difficult to contact a finger with the left and right ends of the operation surface 53a. Therefore, it is guided so that a finger touches the center part of the operation surface 53a.

Next, each finger is bent such that the thumb approaches four fingers other than the thumb, and the grip portion 21 is held.

As a result, as shown in FIG. 6 (b), the operation surface 53a is pressed, the operation panel 5 is moved forward, and the pressed portion 60 is rotated. Then, the engagement between the left and right claw portions 70 and the rod portion 16 a (see FIG. 2) of the engaged portion 16 is released, and the cover member 2 is released. The front side can be moved (rotated) to the top.

When the pressed portion 60 comes into contact with the rear face of the cover front wall portion 42, the lock plate 6 stops rotating. Therefore, the operation panel 5 is restricted from moving forward, and the holding portion 21 can be held (held) in the front-rear direction.

Here, for example, if the pressing surface 52a is inclined and pressed only by the left end of the pressing portion 60 (hereinafter referred to as [single-end contact]), the left claw 70 is fully rotated, but the right claw 70 There is little fear that the engagement with the engaged portion 16 will not be released.

Here, according to the embodiment, since the finger is guided to contact the central portion of the operation surface 53a, in other words, to press the central portion of the operation surface 53a, the possibility of single-end contact is small. Therefore, the engagement between the left and right claw portions 70 and the engaged portion 16 is reliably released.

Next, while maintaining the state in which the grip portion 21 is held, the hand is moved upward. Accordingly, as shown in FIG. 6 (c), the front end side of the cover member 2 is lifted upward. After that, if the hand is moved to the upper side, the rod portion 16 a of the engaged portion 16 in the opening and closing device 3 on the rear side of the cover member 2 is rotated as a center, and the upper opening 10 of the box body 1 is opened.

The above is the opening operation method of the cover member 2. Further, if the aforementioned operations are performed on the front grip portion 21 and the rear grip portion 21 at the same time, the locks of the lock mechanisms 4 provided on the front and back sides are released, and the cover member 2 can be removed 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 portion 50 having a substantially rectangular shape in plan view, and an operation extending forward and backward near the center of the bottom surface of the main body portion 50. Rib 51 for parts; extending downward along the front end of the body part 50, the front wall 52 forming the pressing surface 52a in the front; extending downward along the rear end of the body part 50, the rear wall 53 forming the operating surface 53a in the rear; An upper end surface of 53 extends from an obliquely upper extension portion 54; a corner portion 55 of a lower side of the main body portion 50 extends to a lower corner portion 55; and a left side wall 56 of the main body portion 50 extends along left and right end edges.

As shown in FIG. 7 (a), an upper sliding portion 50 a protruding upward is formed on the front edge side of the top surface of the main body portion 50.

As shown in FIG. 7 (b), a lower sliding portion 51 a is formed on the bottom surface of the rib 51 for an operation portion, which is narrower than the rib 51 for an operation portion.

As shown in FIG. 3, the upper sliding portion 50 a is slidably abutted against the bottom surface of the cover upper wall portion 41. In addition, the lower sliding portion 51 a is slidably abutted against the bottom surface 25 of the operation portion recessed portion 20. The upper sliding portion 50a and the lower sliding portion 51a suppress the vertical movement of the operation panel 5. In addition, the contact area can be reduced compared to the case where the top surface of the main body portion 50 and the bottom surface of the operation portion rib 51 are in contact with each other, and the operation panel 5 can be slid smoothly.

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

The rear wall 53 is curved and the central portion is recessed forward. Further, the extension portion 54 is also curved so as to correspond to the rear wall 53, and the central portion is recessed forward.

Therefore, as shown in FIG. 4, the gap S2 between the rear side surface 26 of the recess 20 for the operating portion and the operating plate 5 is the largest compared to the left and right central portions, and can be guided by inserting a finger near the central portion. As a result, the probability that the finger touches the central portion of the operation surface 53 a increases, and it is possible to prevent the single-end caused by the operation panel 5. Contact the pressed portion 60.

As shown in FIG. 3, the extending portion 54 extends obliquely from the upper end edge of the operation surface 53 a toward the upper rear side.

As shown in FIG. 6 (c), when the extension portion is opened by opening the cover member 2 while holding the grip portion 21, the extension portion 54 catches the finger even if the operation surface 53 a slides off by the finger. Therefore, operability at the time of opening operation of the cover member 2 can be improved.

On the other hand, when the cover member 2 is in the closed state, even if the user accidentally hangs a finger on the extension portion 54 and lifts up the finger, the extension portion 54 is inclined, so that the finger easily falls off. Therefore, it is possible to prevent an excessive load from being applied to the operation panel 5 and break it.

As shown in FIG. 7 (b), the left and right side walls 56 are formed so that the length in the vertical direction is shorter than the front wall 52 and the rear wall 53.

An upper sliding portion 50 a is formed on the top surface of the side wall 56, and a lower sliding portion 51 a is formed on the bottom surface of the side wall 56.

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

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

Furthermore, a lateral sliding portion 49a protruding from the upper and lower ribs 47 inside the guide portion 49 is slidably abutted on the outer surface 56a of the side wall 56.

Further, the lateral sliding portion 49 a extends in the front-rear direction and always abuts against the outer surface 56 a 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 slid smoothly.

Furthermore, the pressing surface 52a of the operation panel 5 can be held in parallel with the pressed portion 60 by the lateral sliding portion 49a, and the single-end contact of the operation panel 5 can be prevented. As a result, the engagement between the claw portions 70 on the left and right sides and the engaged portion 16 is reliably released.

As described above, according to the embodiment, since the finger is brought into contact with the side surface of the cover member 2 (the central surface 42a of the cover member 40) to hold the side surface of the cover member 2, the load acting on the operation panel 5 when the cover member 2 is lifted is lowered and the Deformation and breakage of the plate 5 are suppressed.

In addition, since the operation surface 53a constitutes the rear grip surface 23, the lock of the lock mechanism 4 is released by gripping the grip portion 21. Therefore, since the operation of holding the grip portion 21 includes the operation of unlocking the lock mechanism 4, the operability is good and the convenience is high.

In addition, according to the embodiment, since the upper grip surface 24 that can contact the palm is formed, the grip can be firmly held, and the opening operation of the cover member 2 is stable.

In addition, since the upper holding surface 24 uses the cover member 40 which is a part of the top surface 2 a of the cover member 2, there is no risk that the manufacturing of the cover member 2 will be complicated.

In addition, according to the embodiment, the operation panel 5 is moved along the bottom surface of the operation portion recessed portion 20. In other words, it is not possible to lift a finger by hanging it on the bottom surface of the operation portion as in the conventional technique.

Therefore, it is not necessary to form a space for inserting a finger under the operation panel 5, and the recess 20 for the operation portion can be designed shallowly. The thickness of the cover member 2 (refer to L2 of FIG. 3) located below the recess 20 for an operation part is designed.

As a result, as in this embodiment, a heat-insulating material 33 is provided inside the cover member 2 constituting the bottom wall of the recessed portion 20 for the operation portion, or a cavity is not formed between the outer wall 31 and the inner wall 32, but the For example, it is possible to fill the outer wall 31 and the inner wall 32 with, for example, a resin material to form a solid, and it is possible to suppress a decrease in heat insulation.

The portion of the cover member 2 located below the operating portion recessed portion 20 is the portion having the thinnest thickness in the cover member 2.

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

Furthermore, the heat insulating material 33 is provided in the cover member 2 which comprises the bottom wall of the recessed part 20 for operation parts so that the heat insulating material 33 may cover the whole of the upper opening 10. Therefore, it is difficult for the cold air in the storage space 11 to escape to the outside through the cover member 2, and the heat insulation property of the cover member 2 is greatly 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 this embodiment, the present invention is not limited to this. For example, as shown in FIG. The first rotation member 110 of the pressing portion 60A is configured with the second rotation member 120 having the claw portion 70A.

The first rotating member 110 includes the following members: Parts: one pair of connecting portions 111 and 111 supported rotatably on the first shaft 131 and extending up and down; the pressed portion 60A fixed above the connecting portions 111 and 111; the first fixed portion below the connecting portions 111 and 111 A stick 112.

Further, the second rotating member 120 includes a second shaft 132 rotatably supported by the second shaft 132 and extending above the upper plate portion 122, and a claw portion 70A rotatably supported by the second shaft 132 and connected to the upper plate portion 122, 70A. The upper plate portion 122 is located behind the first rod 112 and abuts the first rod 112.

According to the above configuration, as soon as the operation portion (not shown) is moved forward (see arrow A), the pressed portion 60A is pressed to rotate the first rotating member 110 (see arrow B). Further, since the first rod 112 presses the upper plate portion 122 tightly, the second rotating member 120 rotates (see arrow C), and the engagement between the claw portion 70A and an engaged portion (not shown) is released.

In addition, in the embodiment, although the operation panel 5 includes the extension portion 54, the present invention may not include the extension portion 54.

In addition, although the operation surface 53a of the embodiment has a central portion recessed and curved in the pressing direction, the present invention is not particularly limited, and may be a flat surface.

Further, a plurality of grooves or a plurality of protrusions extending in the left-right direction may be formed on the holding surface (the operation surface and the side surface of the cover member).

This makes it difficult for a finger to slide on the operation surface or the like. Furthermore, even in the case of poor visibility such as at night, the presence or absence of a groove or the like can be recognized by touching a finger, and the position of the grip surface can be grasped.

Claims (7)

A cold preservation box includes: a box body with a top surface opening; a cover member to close the opening; a locking mechanism to maintain the closed state of the box body and the cover member; and an operation portion to release the lock using the locking mechanism, It is characterized in that a recessed portion for an operation portion that houses the operation portion is formed on a top surface of the cover member, and a bottom surface of the recessed portion for the operation portion is parallel to the top surface of the cover member. The top surface of the cover member is further below, and is slidably provided along the bottom surface of the recess portion for the operation portion, and the lock by the locking mechanism is released by being pressed tightly along the bottom surface. For example, the thermal insulation box of the scope of patent application, wherein a heat insulation layer is arranged inside the cover member, and the heat insulation layer extends below the recess for the operation portion. For example, the cold storage box according to the scope of the patent application, wherein the outer peripheral end of the heat insulation layer extends to the outer position of the opening in a plan view of the cover member. For example, the cold storage box of the first or second scope of the patent application, wherein the operation portion has an operation surface, and the recess portion for the operation portion has a sliding direction extending to the operation portion, and one of the opposite surfaces is opposite to each other. The width of the facing surface has a larger area than the width of the operation portion, and a wide area in which the operation portion is arranged, and a side located in the sliding direction instead of the operation surface, and smaller than the width of the operation portion. A narrow area is formed, and the narrow area becomes a narrow area toward the central portion in the width direction of the operation surface. For example, the cold storage box of any one of claims 1 to 3, wherein the locking mechanism is composed of an engaged portion provided on the box body and a claw portion rotatably provided on the cover member. This operation The portion has a pressing surface for rotating the claw portion, and the cover member has a guide portion for guiding the operation portion. The pressing surface is formed broadly in the direction of the rotation axis of the claw portion, and the lock The mechanism includes a pressed portion that is pressed against the pressing surface, the claw portion has at least a first claw portion and a second claw portion separated from each other in the direction of the rotation axis, and the pressed portion has: A claw portion, and a first pressed portion that is pressed against one end side of the pressing surface; and a second pressed portion that is connected to the second claw portion and is pressed on the other end side of the pressing surface. Press the part. For example, in the cold storage box under the scope of application for patent No. 5, wherein the operation portion has two sides on both sides in the direction of the rotation axis, the guide portion has sliding portions that abut on and guide the two sides freely. An opening / closing device for a cool box according to item 5 of the scope of patent application, characterized in that the compacted portion has a portion extending between the first compacted portion and the second compacted portion and is compacted against the compacted portion. The middle pressed portion of the central portion of the pressing surface, and each end portion of the intermediate pressed portion is continued to the first pressed portion and the second pressed portion.