JPH07317724A - Hook device for heat insulating panel - Google Patents

Abstract

PURPOSE:To provide a hook device for a heat insulating panel, for preventing a synthetic resin from entering, and provided with an air bleeding structure having small number of part items. CONSTITUTION:First projecting parts 16 perpendicular to the inner surface are integrally formed on the inner surface of a supporting plate 2 along the end of the supporting plate, and second projecting parts 19 are integrally formed on the inner side from the first projecting parts on the inner surface of the other supporting plate 3, and a weir for preventing a synthetic resin material as heat insulating materials from entering is constituted. A hook housing case 1 is provided with a connecting part 5 for connecting a pair of supporting plats faced to each other and the ends of the supporting plates, and the first projecting parts and the second projecting parts are formed on the ends of the supporting plates excluding the end on which the connecting part is formed and the end on the opening side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel hook device incorporated in a heat insulating panel for connecting heat insulating panels constituting a heat insulating prefabricated structure such as a prefabricated refrigerator / freezer.

[0002]

2. Description of the Related Art A hook device for a heat insulating panel of this type constitutes a rotary lock with a pin incorporated in another heat insulating panel. The rotary lock is, for example, Japanese Patent Publication No. 60-2528 (F16B5 / 07). It is described in.

Such a rotary lock is used for assembling a heat insulating panel 02 constituting a prefabricated refrigerator-freezer 01 as shown in FIG. A cooling device for cooling the inside of the prefabricated refrigerator / freezer 01 is provided, and an opening is formed on the front surface of the prefabricated refrigerator / freezer 01, and a door for the operator is opened and closed in the opening. It is provided freely.

Then, as shown in FIG. 8, a hook device F is incorporated in one heat insulation panel 02, and a pin device P is incorporated in the other heat insulation panel 02, so that the hook of the hook device F is connected to the pin of the pin device P. The heat insulating panels 02 are coupled to each other by engaging and pulling them together.

The conventional structure of such a hook device F is shown in FIGS. In FIG. 9, the hook storage case 03 of the hook device F has a hook storage recess 04.
The pair of iron plates 05 formed with is abutted against each other and spot-welded. The iron plate 05 is provided with a plurality of air vent holes 06, and the air vent holes 06 are provided with seals for preventing urethane from entering. Inside the hook storage case 03, an iron rotor 07 having a body with a circular cross section is rotatably supported around its eccentric shaft 08, and a protrusion 09 is formed on the outer periphery of the rotor 07. Has been done. On the other hand, an iron hook 010 is rotatably supported on the body of the rotor 07. The hook 010 is formed with a retracting side stopper 012 and a loosening side stopper 013.

When the rotor 07 is rotated clockwise about the eccentric shaft 08 to bring the protruding portion 09 into contact with the pull-in side stopper 012, the hook portion of the hook 010 approaches the eccentric shaft 08, and conversely. When the rotor 07 is rotated counterclockwise to bring the protruding portion 09 into contact with the loosening side stopper 013, the hook portion of the hook 010 becomes far from the eccentric shaft 08.

The heat insulation panel in which the hook device F having such a structure is incorporated is a standard heat insulation panel in which urethane is exposed as shown in FIG. 8 and a heat insulation of a custom-made product using a PVC frame shown in FIG. There are two types of panels. Then, in FIG. 10, in order to fix the hook device F to the PVC frame 015, a screw fixing metal fitting 016 is spot-welded to the hook storage case 03, and the PVC frame 015 is screwed with the screw 018.
Fixed to.

[0008]

As shown in FIG. 8, the heat insulating panel has a face member 019 such as a stainless steel plate or a steel plate on both sides.
The hook device F is incorporated into the side surface, and the hook device F is covered with a mold, and urethane is injected into the inside of the frame to foam. Then, the air inside the heat insulation panel and the gas generated when the urethane is foamed are generated by the hook storage case 0.
It is pulled out through the air vent hole 06 of 3 or the like. If this air bleeding is not performed sufficiently, air will accumulate and it will be a defective product as a heat insulating panel. Urethane is supplied from the air vent hole 06 to the hook storage recess 04 of the hook storage case 03.
Although the seal is applied as described above so that the urethane does not enter, the urethane may enter due to insufficient sealing. In addition, there is a gap between the iron plates 05 of the hook storage case 03, and urethane may enter from there.

As described above, when urethane enters the hook accommodating concave portion 04 and foams therein, the rotor 07 may be unable to rotate due to urethane. When the hook storage case 03 is manufactured, the air vent hole 0 is
6 and the work of covering the air vent hole 06 with a seal are required, and the number of parts and the number of manufacturing processes are large. The hook storage case 03 is manufactured by spot welding or caulking a pair of iron plates 05, and it takes time to manufacture the hook storage case 03, and as described above, a gap may be generated in the joint, and urethane may enter. Further, when the hook storage case 03 is attached to the PVC frame 015, since the hook has directionality, it is necessary to attach the hook storage case 03 in a predetermined direction. It had to be installed after confirming the direction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a hook device for a heat insulation panel having an air venting structure which prevents entry of synthetic resin and has a small number of parts. A secondary object is to provide a hook device for an insulating panel that is easy to assemble. Further, it is an object of the present invention to provide a hook device for a heat insulating panel having a limited mounting direction.

[0011]

In order to achieve the above object, in the hook device for heat insulation panel of the present invention, the first protrusion (16) of the support plate is provided on the inner surface of the one support plate (2). A second projecting portion (19) is integrally formed along the end portion, and an inner surface of the other supporting plate (3) is integrally formed with a second projecting portion (19) inside the first projecting portion to prevent resin from entering. It is provided with a hook storage case (1) having a weir. The hook storage case includes the pair of opposing support plates and a connecting portion that connects end portions of the support plates. The hook member (51) supported by the support plate has a storage position where it is stored between the support plates and a projection position where the hook portion (53) projects from the opening (25) formed between the support plates. Move back and forth. Further, the first projecting portion and the second projecting portion are formed at the end portion of the support plate excluding the end portion where the connecting portion is formed and the end portion on the opening side.

Further, the connecting portion is flexible, the opening is arranged at a position facing the connecting portion, and the engaging portion (7, 8)
However, there is a case where an engaging portion (10, 11) engaged with the engaging portion is provided at the opening side end of the other supporting plate.

In some cases, a stopper (23) for preventing protrusion is integrally formed on the inner surface of the support plate on the opening side of the hook member in the storage position.
Further, a wall surface (6) perpendicular to the support plate is formed at the end of the support plate on the opening side, and a restriction portion (28) for restricting the mounting direction of the hook storage case is formed on the wall surface.
May have been formed.

[0014]

[Operation] When a heat insulating panel is manufactured, the heat insulating panel hook device of the present invention is incorporated between a pair of face materials, and a heat insulating material such as urethane is injected and foamed. It passes through the gap between the first projecting portion and the second projecting portion and is discharged to the outside from the opening of the hook storage case. Further, the weir configured by the first protruding portion and the second protruding portion prevents the heat insulating material from entering the inside of the hook storage case.

When the connecting portion is flexible, a pair of support plates are opened and integrally molded with synthetic resin, and the connecting portion is folded and the engaging portion engages with the engaging portion. By doing so, it is possible to easily make a hook storage case.

The pop-out preventing stopper prevents the hook member at the storage position from popping out of the hook storage case. Furthermore, when attaching the hook storage case to a frame such as a PVC frame, if the mounting direction is wrong, the restricting portion formed on the wall surface abuts on the frame and prevents the hook storage case from being attached to the frame.

[0017]

EXAMPLES Next, an example of a hook device for a heat insulating panel according to the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a diagram for explaining a state before assembly of a hook storage case used in one embodiment of a hook device for a heat insulating panel according to the present invention, and (a) is a plan view,
(A) is a front view. FIG. 2 is a partially cutaway front view of the heat insulating panel hook device. FIG. 3 is a front view showing a state where the heat insulating panels are combined. FIG. 4 is a view of the opening for the hook, (a) is a view of the opening of the vinyl chloride frame, and (a) is a side view of the opening side of the hook device. FIG. 5 is an enlarged view of a main part of a side view on the opening side of the hook device.

The hook housing case 1 of the hook device F for the heat insulation panel is integrally molded of a synthetic resin material such as ABS resin having elasticity, and has a pair of rectangular support plates 2 and 3 and one end of the support plates 2 and 3. It comprises a flexible connecting part 5 for connecting the parts. The connecting portion 5 has an elongated strip shape and continuously connects one side of the support plates 2 and 3 over the entire length of the side. Wall surfaces 6 perpendicular to the support plate 2 are formed on the upper and lower parts of the left end portion of the left support plate 2, respectively. The wall surface 6 is formed with a protruding portion provided with locking holes 7 and 8 which are locking portions and protruding outward (left side in the drawing). On the other hand, engaging claws 10 and 11 as engaging portions are formed on the upper and lower portions of the right end portion of the right support plate 3, respectively. The support plate 2 has a bearing hole 13, and the support plate 3 has a bearing recess 14.
Are formed, and reinforcing ribs 15 are provided around them.

At the upper and lower ends of the support plate 2, two vertical plates 16 as elongated first protrusions are formed along the ends. A pair of rather short ridges 18 are formed between the vertical plates 16. Similarly, the upper and lower ends of the support plate 3 are each formed with three vertical plates 19 as second protrusions, and the height of the outermost vertical plate 19 is about half that of the other vertical plates 19. Is. The engaging claws 10 and 11 are formed integrally with the innermost vertical plate 19. Further, on the support plate 3, a storage stopper 21 and a pop-out prevention stopper 23 are formed so as to project. This pop-out prevention stopper 23 is the innermost vertical plate 1
9 and 9 are integrally formed in a state of being coupled with each other, and have a structure in which they are mutually reinforced.

This hook storage case 1 is bent by using the connecting portion 5 as a fold, and the supporting plate 2 and the supporting plate 3 are opposed to each other as shown in FIGS. It is used by engaging 10 and 11 with the locking holes 7 and 8. At the end of the hook storage case 1 facing the connecting portion 5,
A hook opening 25 is formed between the wall surfaces 6 of the support plate 2.
A screw hole 27 is formed in the upper wall surface 6, and a screw hole 27 and a positioning projection 28 are formed in the lower wall surface 6.

The hook device F is incorporated into a heat insulating prefabricated panel (heat insulating panel), and in order to prevent heat insulating material such as urethane (synthetic resin material) from entering the inside of the hook storage case 1 when the heat insulating panel is manufactured, the hook device F is shown in FIG. When the hook storage case 1 is folded as shown, the vertical plate 1
6 and 19 are in a state of overlapping each other with a small gap. The distance between the end surface of the vertical plate 16 and the inner surface of the support plate 3,
Since the distance between the end surface of the vertical plate 19 and the inner surface of the support plate 2 is as small as 0.5 mm, the urethane as the heat insulating material is prevented from entering. Since this space is large enough to allow air to flow, air is removed from the hook opening 25 and the screw hole 27 through the gap between the vertical plates 16 and 19. Further, the pair of ridges 18 sandwich the vertical plate 16 and prevent urethane from entering together with the vertical plate 16. And if urethane intrudes from the outermost vertical plate 16, it will expand in the space between the vertical plates 16 and 19,
The hook storage case 1 does not enter the internal space. The support plates 2 and 3 have a function as a shield plate that prevents the heat insulating material from entering.

In FIG. 2, the rotor 3 of the hook device F is
Reference numeral 1 denotes a hexagonal hole into which the eccentric shaft 33 is rotatably supported by the bearing hole 13 and the bearing recess 14, and the handle lever is detachably inserted. 34 is formed. A flange 36 for holding a hook and an engaging portion 38 are formed on the outer peripheral portion of the rotor 31 so as to project outward.

The hook member 51 of the hook device F is made of metal such as iron and is rotatably supported by the body of the rotor 31 having a circular cross section. Further, on the surface of the hook member 51, a pulling-side stopper 61 and a loosening-side stopper 62 that come into contact with the engaging portion 38 are provided in a protruding manner.

The rotor 31 and the hook member 51 are attached to the hook storage case 1 in the opened state in advance, and then the connecting portion 5 is bent as a fold to engage the engaging claws 10, 1.
The hook device F is manufactured by engaging 1 with the locking holes 7 and 8. Then, in the hook device F, as shown in FIGS. 3 and 4, the protruding locking holes 7 and 8 are inserted into the square holes 73 and 74 which are the fixing holes of the PVC frame 71 which is the synthetic resin frame. The protruding tip portions of the locking holes 7 and 8 are attached to the PVC frame 71 by melting and enlarging. It should be noted that a plurality of hook devices F are generally attached to each PVC frame 71, although one may be provided. Furthermore, the hook device F
In the state in which is attached to the PVC frame 71, the opening side wall surface 6 of the hook storage case 1 is in surface contact with the surface of the PVC frame 71 rather than in point contact, so that the strength can be improved.

In this PVC frame 71, the hook storage case 1
A mounting hole 75 is drilled at a position corresponding to the screw hole 27 of
If the connection with the vinyl chloride frame 71 due to the melted portion is broken due to dropping, impact or the like during the work, it can be fixed again with screws. Further, the PVC frame 71 has a positioning hole 77 at a position corresponding to the protrusion 28 on the opening side wall surface 6 of the hook storage case 1. Due to the positioning projection 28 and the positioning hole 77, the hook device F
When attaching the hook device F to the vinyl chloride frame 71, the hook device F can be attached to the vinyl chloride frame 71 without making a mistake in checking the direction of the hook of the hook member 51.
Further, an opening 78 is formed in the PVC frame 71 at a position corresponding to the hook opening 25 of the hook storage case 1. The pin 81 of the pin device P is provided on a synthetic resin block 82, and this block 82 is screwed to a vinyl chloride frame 85.

In this way, the hook device F and the pin device P
When the PVC frames 71 and 85 with the attached are ready, a rectangular panel 91 such as a stainless steel plate or a steel plate is made to face each other with a space, and a cavity panel is formed. The PVC frame 71, 85 to which the hook device F and the pin device P are attached is closed, and a heat insulating material such as urethane is injected into the inner space and foamed to manufacture a heat insulating panel.

Next, the operation of the insulating panel hook device having the above-mentioned structure will be described. In order to store the hook member 51 at the protruding position shown by the solid line in FIG. 2 in the hook storage case 1, the eccentric shaft 33 of the rotor 31 is used.
The handle lever is inserted into the hole 34 of the and the rotor 31 is rotated counterclockwise. The hook member 51 is the rotor 3
Although it is rotatably provided on the body portion 1, the hook member 51 rotates counterclockwise together with the rotor 31 due to frictional resistance. Then, the hook member 51 comes into contact with the storage stopper 21 and stops its rotation.

Further, when the rotor 31 is rotated counterclockwise, the engaging portion 38 is disengaged from the pulling side stopper 61 of the hook member 51 and abuts on the loosening side stopper 62. By the rotation of the rotor 31, the rotor 31
The center O1 of the torso portion was located farther from the hook portion 53 before the rotation than the center O2 of the eccentric shaft 33, but comes closer to the hook portion 53 after the rotation. Since the distance between the center O1 of the rotor 31 and the hook portion 53 is constant, the distance between the center O2 of the eccentric shaft 33 and the hook portion 53 gradually increases, and the tip of the hook member 51 moves toward the pop-out prevention stopper 23. Then, the storage position shown by the two-dot chain line is obtained.

The hook member 51 at the storage position is blocked by the pop-out preventing stopper 23 even if the hook member 51 tries to move outward due to an external force such as vibration. Further, as shown in FIG. 3, when pulling the pin 81 by the hook device F, the eccentric shaft 33 is moved from the state shown by the chain double-dashed line in FIG.
Rotate clockwise. At that time, the hook member 51 is
Since the tip end of the rotor 31 is in contact with the pop-out prevention stopper 23 and cannot rotate, the rotor 31 cannot be rotated.
It rotates clockwise with respect to the hook portion 53 as described above.
Gradually approaches the center O2 of the eccentric shaft 33. That is, the hook member 51 moves downward, and the tip of the hook member 51 separates from the pop-out prevention stopper 23.

When detached, the hook member 51 is attached to the rotor 3
The hook portion 53 protrudes from the hook opening 25 and engages with the pin 81 by rotating clockwise together with 1. When engaged, the hook member 51 cannot rotate, so the rotor 31 rotates clockwise with respect to the hook member 51, and the hook portion 53 gradually approaches the center O2 of the eccentric shaft 33. In other words, the pin 81 engaged with the hook portion 53 is pulled toward the rotor 31 side.

Next, a modified example of the engaging claw 10 will be described with reference to FIG. FIG. 6 is an enlarged plan view of an essential part of the right end portion of the hook storage case. In the description of this modified example, components corresponding to those of the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. A plurality of vertical plates 19 are provided in the same manner as in the above embodiment, the outer vertical plate 19a is provided on the front side in this figure, and the inner vertical plate 19b is provided on the back side.

In this modified example, instead of the L-shaped engaging claw 10 of the above embodiment, a right triangular engaging claw 10a is formed integrally with the inner vertical plate 19b. A notch 10b is formed on the left side of the engaging claw 10a (inside the hook storage case 1), and when the engaging claw 10a engages with the locking hole 7, the engaging claw 10a bends to the left side. , Can be engaged smoothly.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention described in the claims. It is possible to make changes. A modified embodiment of the present invention is illustrated below. (1) In the embodiment, the regulation portion that regulates the mounting direction of the hook storage case is the protrusion 28 that is a convex portion,
It is also possible to configure with holes or recesses. In this case, a protrusion such as a protrusion is formed on the PVC frame. Also, the sizes and shapes of the protruding portions in which the upper and lower locking holes 7 and 8 are formed are different from each other, and the sizes and shapes of the upper and lower square holes 73 and 74 of the PVC frame 71 are also different. When the hook storage case is attached in reverse, the protruding portion can be configured to be unable to be inserted into the square holes 73 and 74 to serve as the restricting portion.

(2) In the embodiment, the support plates 2 and 3 are rectangular, but their shape can be changed as appropriate. Since the connecting portion 5 is a fold of the hook storage case 1, it is desirable that it has a linear shape. Further, when the connecting portion continuously connects the ends of the support plates along the ends thereof, the connection part of the support plates may be opened as in the case of butt-welding conventional iron plates. In addition, the heat insulating material does not enter the inside of the hook storage case through this connecting portion. (3) In the embodiment, a vinyl chloride frame is used as the frame to which the hook storage case is attached, but the material can be changed as appropriate and other synthetic resin frames or metal frames can be used. is there.

(4) In the embodiment, the vertical plate 16 which is the first protruding portion is provided in two steps on the outer side and the inner side, and the vertical plate 19 which is the second protruding portion is provided in three steps, that is, three steps. However, the number of sheets can be changed as appropriate, and one sheet or a plurality of sheets can be used. In addition, when the first protrusion is provided in two steps, the outer side and the inner side, and the screw hole 27 that connects the space between the first protrusion and the external space is provided, the heat insulating material is provided in the space between the first protrusions. Since foaming occurs and gas escapes from the screw hole 27, the heat insulating material rarely enters the inside of the hook storage case 1. When the first protrusions are provided in two or more stages, the second protrusions can be provided between the first protrusions or can be provided further inside than the inner first protrusion.

[0036]

According to the present invention, since the first projecting portion and the second projecting portion are formed on the inner surface of the end portion of the hook storage case, the first projecting portion and the second projecting portion are made of the heat insulating material. While preventing the invasion, the gas generated when the heat insulating material such as urethane injected inside the heat insulating panel is foamed and the air inside the heat insulating panel, through the gap between the first protruding portion and the second protruding portion, It is discharged to the outside through the opening of the hook storage case and air is removed. Also, as a result,
It is not necessary to make an air vent hole in the hook storage case or to seal the air vent hole.

When the connecting portion is flexible, the pair of support plates are formed integrally with each other in an open shape and made of synthetic resin, and the connecting portion is folded and the engaging portion engages with the engaging portion. Then, it becomes possible to manufacture a hook storage case. As a result, it is not necessary to butt and weld two iron plates, and the hook storage case can be manufactured easily.

When the pop-out prevention stopper is formed, the hook member at the storage position can be securely held in the hook storage case.
Further, when the wall has the restricting portion, it is possible to prevent an error in the mounting direction when mounting the hook storage case on a frame such as a PVC frame.

[Brief description of drawings]

FIG. 1 is a view for explaining a state before assembly of a hook storage case used in an embodiment of a hook device for a heat insulation panel according to the present invention, (a) is a plan view, and (a) is a plan view.
Is a front view.

FIG. 2 is a partially cutaway front view of the heat insulating panel hook device.

FIG. 3 is a front view showing a state in which heat insulating panels are combined.

FIG. 4 is a view of an opening for a hook, (a) is a view of an opening of a vinyl chloride frame, and (a) is a side view of an opening side of a hook device.

FIG. 5 is an enlarged plan view of an essential part of a right end portion of a hook storage case in a modified example.

FIG. 6 is an enlarged view of a main part of a side view of the opening side of the hook device.

FIG. 7 is a perspective view of a refrigerator-freezer.

FIG. 8 is a perspective view of a conventional heat insulation panel.

FIG. 9 is a partially cutaway front view of a conventional heat insulation panel hook device.

FIG. 10 is a partially cutaway front view for explaining an engagement state between a conventional hook device for a heat insulation panel and a pin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hook storage case 2,3 Support plate 5 Connecting part 6 Opening side wall surface 7,8 Locking hole (locking part) 10,10a, 11 Engaging claw (engaging part) 16 Vertical plate (first protruding part) 19 Vertical plate (second protruding portion) 23 Stopper stopper 25 Opening for hook 28 Protrusion (regulating portion) 51 Hook member 53 Hook portion

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hikaru Yamamoto 2-5-5 Keihanhonmachi, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Yutaka Kurihara 2-5-5 Keihanhonmachi, Moriguchi-shi, Osaka Sanyo Denki Co., Ltd. (72) Inventor Masaki Negishi 2-5-5 Keihan Honcho, Moriguchi City, Osaka Sanyo Denki Co., Ltd.

Claims (4)

[Claims] 1. A hook housing case made of synthetic resin, comprising a pair of opposing support plates and a connecting portion connecting end portions of the support plates, a storage position housed between the support plates, and a space between the support plates. And a hook member supported by the support plate, which reciprocates between a protruding position where the hook portion protrudes from the opening formed in the opening, and an end portion on which the connecting portion is formed and an end portion on the opening side. Except for the end portion of the support plate, a first projecting portion is integrally formed along the end portion on the inner surface of one of the supporting plates, and the inner surface of the other supporting plate is inside the first projecting portion. A hook device for a heat insulating panel, characterized in that a weir is formed integrally with the second protrusion to prevent resin from entering. 2. A hook housing case made of synthetic resin, comprising a pair of opposing support plates and a connecting portion for connecting ends of the support plates, a storage position housed between the support plates, and a space between the support plates. A hook member supported by the support plate and reciprocatingly moved to and from a protruding position where the hook portion protrudes from the opening formed in the opening, and the opening is flexible. An engaging portion which is disposed at a position facing each other, and which engages with the engaging portion at the opening side end portion of one supporting plate and engages with the engaging portion at the opening side end portion of the other supporting plate. A hook device for a heat insulating panel, characterized in that the hook device is provided. 3. The heat insulation panel according to claim 1, wherein a stopper for popping out is integrally formed on the inner surface of the support plate on the opening side of the hook member at the storage position. Hook device. 4. A wall surface perpendicular to the support plate is formed at an end of the support plate on the opening side, and a restriction portion for restricting a mounting direction of the hook storage case is formed on the wall surface. The hook device for a heat insulating panel according to claim 1, 2, or 3.