JPH0733877U - Paper protector for corners of articles - Google Patents

Abstract

(57) [Abstract] [Purpose] When a protective body made of laminated paper with an L-shaped cross section or a U-shaped cross section is bent and fitted on the corner of an article, the surface tears at the bent part. To prevent the appearance from deteriorating. [Structure] A bent portion 5 of a protective body 1 is formed so as to bulge outward in a cross-section over its entire length. Since the folding part 5 can be folded with a large radius of curvature, the outer kraft paper 1
A large pulling force does not act on b, and as a result, it is possible to prevent the outer kraft paper 1b from tearing and deteriorating the appearance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper protector adapted to be applied to a corner portion of an article such as furniture when it is transported or stored.

[0002]

[Prior art]

 As a protector for protecting a corner portion of furniture, the applicant of the present application has proposed a utility model registration application (No. 5-7661 of the utility model) as shown in FIGS. 9 to 10. That is, in the invention of this prior application, the protective body 11 is formed in a L-shaped cross section with laminated paper formed by sticking kraft paper 11b on both front and back surfaces of a flexible cardboard 11a such as milk carton paper. By forming a right triangular triangular cutout portion 14 at an appropriate portion of one side plate 12 of the body 11 along the longitudinal direction, the base portion of the cutout portion 14 of the other side plate 13 is formed into a bent portion 15. The bent portion 15 was formed, and was bent at the bent portion 15 so as to be in close contact with the corner portion A of the article.

[0003]

[Problems to be solved by the device]

 According to this prior invention, since a flexible cardboard such as milk carton paper is used as the core, it can be folded without breaking even though it is made entirely of paper, and it is protected before use. Since the bodies 11 can be overlapped with each other, there is an advantage that the space can be effectively used for storage and transportation.

However, on the other hand, in the invention of this prior application, when the protective body 11 is bent during use, a large pulling force acts on the outer surface of the bent portion 15, so that as shown in FIG. However, there is a problem that the kraft paper 11b on the outer surface of the bent portion 15 is torn and the appearance is deteriorated. The present invention aims to solve this problem.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the present invention is a protective paper which is formed by laminating kraft paper on both front and back sides of flexible cardboard such as milk carton paper and has L-shaped or U-shaped cross section. The body is formed by partially cutting an appropriate portion into a triangular shape or the like to form a bent portion that extends in a direction substantially orthogonal to the longitudinal direction, and the bent portion is expanded outwardly in a convex shape in cross section over the entire length. It is configured to be formed.

[0006]

[Operation and effect of the device]

 According to this structure, since the bent portion of the protector can be bent with a large radius of curvature, it is possible to prevent a large pulling force from acting on the outer surface of the bent portion, so that the kraft paper on the outer surface of the bent portion is torn. The phenomenon can be reliably prevented.

Therefore, according to the present invention, even though the protector is made of paper, there is an effect that it is possible to surely prevent the appearance from being deteriorated during use.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment in which the protector 1 is formed by two side plates 2 and 3 in an L-shaped cross section, and one of the side plates 2 of the protector 1 is long. By forming a cutout 4 in the shape of a right-angled triangle in plan view in the middle along the direction, the base of the cutout 4 in the one side plate 2 of the other side plate 3 is formed as a bent part 5 for protection. By bending the body 1 inward at the bent portion 5, each outer surface of the corner portion A of the article can be covered with the protective body 1.

Then, the bent portion 5 is formed so as to bulge out in a semicircular shape having an outwardly convex cross-section over its entire length. The L-shaped protector 1 made of laminated paper and the bent portion 5 of the other side plate 3 having a convex cross-section can be easily formed by bending while heating. The base portion of the cutout portion 4 on the one side plate 2 is cut out so as to spread on both sides of the bent portion 5 (this cutout portion is indicated by reference numeral 6).

In this embodiment and other embodiments, as shown in FIG. 4, the protector 1 is a laminated body in which a kraft paper 1b is attached to both front and back surfaces of a cardboard 1a having flexibility such as milk carton paper. It has become. A synthetic resin film 1c is laminated on one side of the cardboard 1a. The shape of the cut-out portion 4 on one of the side plates 2 is not limited to the triangular shape, and may be formed in a rectangular shape as shown by the alternate long and short dash line 4'in FIG.

In the above structure, the other side plate 3 of the protective body 1 is bent inward at the bent portion 5 and the end faces of the cutout portions 4 of the one side plate 2 are brought into contact with each other, thereby protecting the protective body 1. 1 can be fitted onto the corner portion A of the article. In this case, since the folded portion 5 of the other side plate 3 is formed to have a convex cross-section over the entire length thereof, the folded portion 5 can be folded with a large radius of curvature, so that the kraft paper 1b on the outer surface of the folded portion 5 can be bent. A large pulling force does not act, so that the outer kraft paper 1b is not torn along the fold line and the appearance is not deteriorated.

By the way, when the bent portion 5 is formed in an inward convex shape, the inner surface of the bent portion 5 hits the outer surface of the corner portion A of the article, and the side plates 2 and 3 are brought to the outer surface of the corner portion A of the article. There is a risk that it will not be possible to make close contact. On the other hand, when the bent portion 5 is formed in a convex shape outward in cross section as in the invention of the present application, the bent portion 5 does not project inward at the time of bending, so the protector 1 is placed on the outer surface of the corner portion A of the article. Can be closely attached.

If, as in the embodiment, one of the side plates 2 is cut out at the base of the cut-out portion 5, one side plate 2 is not caught at the base of the cut-out portion 4 during bending, so that the bending The phenomenon that the kraft paper 1b on the outer surface of the portion 15 is torn can be more reliably prevented, and the kraft paper 1b can be bent with a light force. FIG. 5 shows a second embodiment applied to one of the side plates 2 in which the engaging projection 7 and the engaging hole 8 for holding the bent state are formed on the end surface of the cutout portion 4. Yes, in this embodiment, the bent portion 5 is formed in a U-shape having a convex section outward.

As shown in FIG. 6, a triangular slit 4 is formed at the end of the protector 1 so as to be bilaterally opposite to each other with the connecting portion between the side plates 2 and 3 interposed therebetween. 3 is a third embodiment in which the respective end portions of the triangular portions 2 and 3 are formed in a triangular shape, and the triangular portions 2a and 3a are bent inward. In this embodiment, an engaging protrusion 7 and an engaging groove 8 are formed on the edge of the cutout 4.

Further, FIG. 7 shows that the protective body 1 is formed in a U-shaped cross section so as to be fitted to an overhang-like portion of furniture such as a top plate of a desk, and its longitudinal direction. It is a fourth embodiment applied to the one in which the middle part along the line is bent. Also in each of the embodiments shown in FIGS. 5 to 7, the notch 6 is formed at the base of the slit 4.

[Brief description of drawings]

FIG. 1 is a view of a first embodiment, (a) is a perspective view before being bent, and (b) is a perspective view after being bent.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view of FIG. 1 (b).

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a plan view of the second embodiment.

FIG. 6 is a perspective view of a third embodiment.

FIG. 7 is a perspective view of a fourth embodiment.

FIG. 8 is a perspective view showing a usage state of a protector.

9A and 9B are views showing a conventional example, FIG. 9A is a perspective view of a state before use, and FIG. 9B is a diagram showing a state after use.

10 is a cross-sectional view taken along line XX of FIG. 9 (b).

[Explanation of symbols]

 A Corners of articles 1 Protective body 1a Cardboard 1b Kraft paper 2,3 Side plate 4 Opening part 5 Bending part 6 Notch part

Claims (1)

[Scope of utility model registration request] 1. A laminated paper comprising kraft paper adhered to both front and back sides of flexible cardboard such as milk carton paper,
A protective body having an L-shaped cross section or a U-shaped cross section, and by partially cutting an appropriate portion thereof into a triangular shape,
A paper protector for a corner portion of an article, characterized in that a bent portion extending in a direction substantially orthogonal to the longitudinal direction is formed, and the bent portion is formed to bulge outward in a cross section over the entire length.