JPH0724726U - Hinge frame - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] By constructing the entire container with a single material,
When the product fulfills its mission, it is easy to carry out the work involved in recycling without disposing it as industrial waste.
Made it possible to reuse completely. [Structure] A plate-like material 20 that serves as a sidewall material, a bottom material, or a lid material
A groove-shaped recess 2 into which an edge portion of the frame 1 can be press-fitted and inserted is integrally formed through a connecting portion 3 serving as a hinge. Male and female ridges 5 that can be fitted / separated at a position where the facing surfaces of both frames 1 and 1 connected to each other are joined or face each other with a slight gap.
Further, the recessed groove 6 is formed by extrusion molding of polypropylene resin to have a long length so that it can be projected and recessed in a position parallel to the connecting portion 3, and this is cut to any desired set length.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a hinge frame formed by extrusion molding using polypropylene resin as a material.

[0002]

[Technical background]

 As the name implies, a hinge frame is a hinge with a frame, and the hinge frame of the present invention is particularly called a "carrying box" which is a box that reciprocates between specific areas or is a container for storing parts. In the case of a returnable box, when it becomes empty from either the forward or backward direction, it can be folded, folded to reduce its volume, and then assembled freely. It is used for boxes.

The conventional form of the returnable box is a wooden box, a solid plastic box, or the like, and the emergence of a container that can be folded based on a request to reduce the volume when these are empty There is a history of becoming.

Further, there has been a corrugated cardboard box for a long time as a container that can be folded, but the corrugated cardboard box has a short service life due to insufficient strength, resulting in an expensive cardboard box. The use of is not well adopted.

At present, a collapsible container box made of a synthetic resin having a cardboard box structure as a basic form has emerged.

These main parts are composed of a plate-shaped body made of polypropylene resin, a frame made of vinyl chloride resin, and a frame including a hinge portion.

The present invention relates to a frame provided with the above-mentioned hinge portion.

[0008]

[Prior art]

 A conventional frame having a resin hinge portion is formed by using a material thereof, mainly vinyl chloride resin.

[0009]

[Problems to be solved by the device]

 Most conventional hinge frames made of resin are made of vinyl chloride resin.

The reason for this is that the molding process is easy, the rigidity is high, the coloring is free, and the price is relatively low. You can admire the beautiful finish.

However, since the frame is mainly used for the hinge, there is a large amount of material fatigue due to the rotational movement of the hinge, and the material is destroyed in a relatively short time depending on the number of times of rotation. There is a drawback to

When the hinge portion is destroyed in this way, the product using the hinge closes its life.

Recently, one of the industrial wastes that has been clamored for is the waste treatment of resin products.

Among them, vinyl chloride resin products are being called for reuse for disposal, but although they are not impossible to recycle, they still have the drawback of being more expensive than using new materials. .

Polypropylene resin is tough, but its rigidity is lower than that of the above vinyl chloride resin, and is a sub-member with respect to the polypropylene resin of the plate-shaped material of the main part of the above-mentioned assembly box and the like. The frame and hinge frame were made of vinyl chloride resin for the purpose of utilizing the above-mentioned advantageous material characteristics in addition to high rigidity.

[0016] These products made of the above-mentioned composite materials are disposed of when the mission is fulfilled. However, due to the recent cry for the production reduction or reuse of non-combustible industrial waste, the above-mentioned vinyl chloride The problem of reuse of polypropylene resin, which is slightly more expensive than the resin, is easier than that of the beanyl chloride resin, and there is little deterioration in quality even if reused, reused, or reused, and the deterioration of the target material properties is also reduced. Since many are not accepted, it is desirable to use a single material for the entire product subject to disposal that does not require manual dismantling work when it is reused. The hinge frame is made of polypropylene resin.

As described above, polypropylene resin is rich in toughness as compared with vinyl chloride resin, but it is poor in rigidity. Therefore, when the hinge frame is made of the same structure as the conventional vinyl chloride resin, the rigidity naturally occurs. It is an object of the present invention to try to make up for the shortage in terms of structure.

[0018]

[Means for Solving the Problems]

 As means for achieving the above-mentioned object of the present invention, two frames of a frame in which a groove-shaped recess into which an edge portion of a plate-shaped material serving as a side wall material, a bottom material or a lid material is press-fitted and inserted is formed in a substantially U-shaped cross section. Is integrally formed through a connecting portion that serves as a hinge, and the opposing faces of both connected frames are joined or separated at a position where they are opposed to each other with a small gap, and The groove is formed by extrusion molding of polypropylene resin to have a long groove so that the groove can be projected and recessed in a position parallel to the connecting portion, and the groove is cut to any desired set length. .

[0019] Further, a male-and-female type protrusion and a concave groove that can be fitted into and separated from the outer surface of the bottom portion of the frame having a substantially U-shaped cross section that is connected via the connecting portion are provided in parallel with the connecting portion. , Is to be recessed.

Furthermore, in a frame having a substantially U-shaped cross section connected through a connecting portion, male and female ridges and concave grooves that can be fitted / separated from the bottom outer surface and the side surface of the facing surfaces facing each other are provided. Is provided so as to project and recess at a position parallel to the connecting portion.

[0021]

[Action]

 A plate-shaped material of the main part made of the same material is press-fitted into the groove-shaped recess formed in a frame of approximately U-shaped cross section made of polypropylene resin, or it is combined. After that, they are fixed by welding or rivets made of the same material as above.

In this hinge frame, the two frames can be freely rotated by a connecting portion that exerts a hinge action when desired.

When the freely rotated frame is fixed in the set state, the two frames are fitted with the male and female ridges and grooves provided on the surfaces facing each other. Achieve the purpose.

[0024] Two frames are formed in one body through the connecting portion, and this acts as a hinge. When the two frames are fixed in the set state as described above, the two frames are formed on the surfaces facing each other. This hinge frame made of polypropylene resin, which is highly flexible, fits the male and female ridges and grooves provided in the hinge frame. Since the connecting action of the two ridges by the fitting and coupling with the ridge and the groove to be formed is performed in parallel, it is possible to prevent the bending phenomenon and to resist the pressure from the outside. Is something that can be done.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the drawings, an embodiment of the present invention will be described in which a groove-shaped recess 2 into which an edge portion of a plate-like material 20 which is a side wall material, a bottom material or a lid material is press-fitted can be inserted. The two frames of the frame 1, which are formed in a substantially U-shape, are integrally formed via a connecting portion 3 serving as a hinge, and the facing surfaces 4 and 4 of both the connected frames 1 and 1 are joined or slightly formed. A male and female ridge 5 and a groove 6 which can be fitted and separated at positions opposite to each other through a gap are formed by extrusion molding of polypropylene resin so that they can be projected and recessed in a position parallel to the connecting portion 3. It is formed by cutting, and is cut into any desired set length.

In addition, male and female ridges 5 and concave grooves 6 that can be fitted and separated from the outer surface of the bottom portion 4a of the two frames 1 and 1 having a substantially U-shaped cross section connected through the connecting portion 3 are provided. The protrusions and recesses are formed in parallel with the connecting portion 3.

Further, in the frames 1 and 1 having a substantially U-shaped cross-section, which are connected to each other through the connecting portion 3, they are fitted to the outer surfaces of the bottom portions 4a of the facing surfaces 4 and 4 facing each other and the side surface 4b. The male-and-female type protrusions 5 and the recessed grooves 6 which can be separated from each other are provided so as to protrude and recess at a position parallel to the connecting portion 3.

Incidentally, when the hinge frame of the present invention is formed by using a polypropylene resin extrusion molding means, as the means, each of the frames 1 and 1 and each of the connecting portions 3 are separately extruded, After that, these are united and constructed.

[0029]

[Effect of device]

 The present invention is configured as described above, and in the past, a hinge frame formed of vinyl chloride resin as a material, in particular, in the hinge portion, is deteriorated by a large number of hinge actions, In the end, in the case of continuous destruction, this invention is lower in rigidity than the above vinyl chloride resin, but toughness is much higher than that of the vinyl chloride resin, and many times of rotation action as a hinge. However, in terms of lack of material fatigue and lack of rigidity, the male and female fitting type ridges and grooves provided for fixing in the set state are provided in parallel with the connecting part that becomes the hinge part. As a result, it prevents the flexing action and exerts a great resistance action against the stress received. By was material, after fulfilling the product life, without the industrial waste, without the need for human dismantling in which an effect capable of performing repeated playback processing step.

[0030]

[Brief description of drawings]

FIG. 1 is a perspective view of a hinge frame,

2 is an enlarged cross-sectional view of the hinge frame of FIG. 1,

FIG. 3 is a perspective view of a hinge frame according to another embodiment,

FIG. 4 is an enlarged cross-sectional view of the hinge frame of FIG.

[0031]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 frame, 2 groove type recessed parts, 3 connection part, 4 opposing surface, 4a bottom part, 4b side surface, 5 ridge, 6 concave groove, 20 plate-shaped material.

Claims (3)

[Scope of utility model registration request] 1. A frame 1 in which a groove-shaped recess 2 into which a peripheral edge of a plate-shaped material 20 serving as a side wall material, a bottom material, or a lid material is press-fitted and inserted is formed with a substantially U-shaped cross section is connected as a hinge. Male and female protrusions that are integrally formed via the portion 3 and can be fitted / separated at a position where the facing surfaces 4 and 4 of the two connected frames 1 and 1 are joined or face each other with a slight gap therebetween. 5 and the recessed groove 6 are formed by extrusion molding of polypropylene resin to have a long length so that the recessed portion 5 and the recessed groove 6 can be projected and recessed in a position parallel to the connecting portion 3, and this is cut to any desired set length. A characteristic hinge frame. 2. Male-and-male type projections 5 and concave grooves 6 which can be fitted / separated from the outer surface of the bottom portion 4a of the frame 1 having a substantially U-shaped cross section and connected by the connecting portion 3 are connected to each other. The hinge frame according to claim 1, wherein the hinge frame is formed so as to project and recess in parallel with the portion 3. 3. In the frames 1, 1 having a substantially U-shaped cross section, which are connected to each other through the connecting portion 3, the outer surfaces of the bottom portions 4a of the facing surfaces 4, 4 facing each other and the side surface 4b can be fitted and separated from each other. The hinge frame according to claim 1, wherein the male and female projections (5) and the recessed groove (6) are formed so as to project and recess at a position parallel to the connecting portion (3).