JP3072468U - Top package of small transformer - Google Patents

Abstract

(57) [Problem] To provide an upper package of a small transformer which is easy to manufacture and assemble and has excellent recyclability. A blank made of a corrugated cardboard is bent and assembled, and a four-sided rectangular top plate and four four-sided plates are respectively extended at four peripheral edges of the top plate and each bent downward at right angles to the top plate. The side plate and the four paired plates that are respectively extended at both ends of the pair of opposed side plates, each bent at a right angle to the adjacent side plate, and overlapped with the other pair of opposed side plate outer surfaces. The presser plate and the end of each presser plate are respectively extended,
Each is bent at right angles to the adjacent holding plate,
A packing body including four spacer plates that are inserted inside the side plate through openings or slits formed in the other pair of side plates and protrude into a space surrounded by the side plates. By placing this in the form of a hat on the top of the small transformer, the tip of the spacer plate is brought into contact with or close to the side of the transformer.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a package for packing the upper part of a small transformer, which is generally called a small transformer cap packing.

[0002]

[Prior art]

 Normally, a small transformer has a primary terminal on the upper side of one side and a secondary terminal on the upper side of the opposite side.To protect the terminal during transportation, etc. It is general that only the upper part of is packed in a packing body. The package for the upper part of the small transformer is conventionally made of wood such as cedar boards, and a four-sided frame is used to form a rectangular open and closed frame that can be put on the upper part of the small transformer. At the top opening, a plurality of crosspieces are attached to contact the top of the transformer to hold the frame on the top of the small transformer.Furthermore, the inside of the frame contacts the side of the transformer between the adjacent terminals and the frame and the transformer. It has a structure in which a spacer plate is attached to keep a constant distance from the side. Such a conventional package is made of wood, as described above, and has to be manufactured by assembling and fixing a number of members one by one using nails or adhesives. Is not good either. There is also a problem in recyclability due to the use of nails and the like.

[0003]

[Problems to be solved by the invention]

 The present invention has been made in view of the above-mentioned conventional circumstances, and a purpose thereof is to provide an upper package of a small transformer which is easy to manufacture and assemble and has excellent recyclability.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the upper package of the small transformer according to the present invention is constructed by folding and assembling a single blank made of cardboard, as described in claim 1, and comprises a rectangular square top plate. The four side plates are respectively extended on the four peripheral edges of the top plate, each of which is bent downward at right angles to the top plate. Four pressing plates bent at right angles to the adjacent side plates and superimposed on the outer surfaces of the other pair of opposing side plates; and each of the pressing plates extending at the tip of each pressing plate, each of which is adjacent to the adjacent pressing plate. Four sheets that are bent at right angles to the plate, inserted into the side plates through openings or slits formed in the other pair of side plates, and protrude into a space surrounded by the side plates. And a spacer plate.

[0005] The upper package of the small transformer constructed as described above is manufactured by bending a single corrugated cardboard blank, and does not require fixing means such as nails or adhesive for assembly.

[0006]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an upper part of a small transformer B having two primary terminals 11a and 11b on one side and three secondary terminals 12a, 12b and 12c on the opposite side. In the figure, a package indicated by reference numeral A as a whole is made of corrugated cardboard, and its main body a has at least the size of the cross section of the upper part of the small transformer B packed in the package A. A rectangular top plate 1 having a predetermined size and a side plate 2 provided on four sides of the top plate 1 are formed in a relatively shallow box shape having an open lower surface. At the location, a lug take-out hole 8 is formed to engage with lug 13 protruding from the upper four corners of transformer B.

[0007] Of the side plates 2 of the main body a, the left and right ends of the long side plates 2a and 2b are wrapped around the adjacent short side plates 2c and 2d, respectively. , 2d are integrally extended with a contact plate 3 (3a, 3b, 3c, 3d) which is superposed on the outer surface of the contact plate 3 (3a, 3b, 3c, 3d). 3a, 3b, 3c, 3d), a spacer plate 4 (4a, 4b, 4c, 4d) which is bent at a right angle, penetrates the short side plates 2c, 2d, and extends into the main body a. Have been.

[0008] Two contact plates 3a and 3b (hereinafter referred to as the first first side plate 2c, respectively, which are respectively superimposed on the one short side plate 2c (hereinafter referred to as a short first side plate for convenience of explanation) from the opposite direction. , The second backing plate), the first backing plate 3a in a state where the hanging ear take-out hole 8 is engaged with the hanging ear 13 of the transformer B and the main body a is put on the upper part of the transformer B. Of the three secondary terminals 12a, 12b, 12c of the transformer B correspond to the middle position between the central terminal 12b and the terminal 12a located on the base end side of the first backing plate 3a. And the distal end of the second backing plate 3b extends to a position corresponding to an intermediate position between the central terminal 12b and the terminal 12c located on the base end side of the second backing plate 3b. The short side first side plate 2c has first and second openings 9a formed on both sides thereof, leaving a space corresponding to the distance between the ends of the first and second backing plates at the center in the longitudinal direction. , 9b, and a spacer plate 4a (referred to as a first spacer plate) continuously provided at the end of the first backing plate 3a has a first opening 9a connected to the second backing plate 3b. Plates 4b (referred to as second spacer plates) extend into the main body a through the second openings 9b, respectively.

The first and second openings 9a and 9b are formed in the lower half of the first short side plate 2c, respectively, and the bases of the first and second spacer plates 4a and 4b are formed in the upper half thereof. Slits 6a and 6b (referred to as first and second slits) are formed in the portion, and the first slit 6a is short in the first opening 9a and the second slit 6b is short in the second opening 9b. The first and second spacer plates 4a and 4b are fixed to the shorter first side plate 2c by engaging with the upper half of the first side plate 2c.

In addition, two backing plates 3c and 3d (referred to as third and fourth backing plates) that are respectively superposed on the other short side surface plate 2d (referred to as the second short side surface plate) from the facing direction. ) Extend to a portion (in the illustrated example, the center in the length direction of the short side second side plate 2d) corresponding to the intermediate position between the two primary terminals, and the third and fourth backing plates The spacer plates 4c and 4d (hereinafter, referred to as third and fourth spacer plates) provided at the distal ends of the third and fourth backing plates 3c and 3d are provided at the ends corresponding to the distal ends of the third and fourth backing plates 3c and 3d. A slit 6c (referred to as a third slit) formed in the side plate 2d is inserted and extends into the main body a.

The third slit 6c extends from the lower end to the upper end of the short side second side plate 2d with a width corresponding to the sum of the thicknesses of the third and fourth spacer plates 4c and 4d. The third and fourth spacer plates 4c and 4d, which are formed through the third slit 6c, are firmly sandwiched and fixed. Each of the first to fourth spacer plates 4a to 4d has an end abutting or approaching the side surface of the transformer B in a state where the package A is placed on the upper part of the transformer B.

Such a package A is formed by bending a single corrugated cardboard blank A ′. In the blank A ′, as shown in FIG. A first longitudinal side plate 2a extends from one of a pair of opposed longitudinal side edges of the top plate 1 via a first ruled line 7a, and a second longitudinal side plate 2a extends to the other side edge. The second longitudinal side plate 2b extends through the ruled line 7b. Further, a short first side surface plate 2c is extended from one of a pair of short side edges of the top plate 1 facing each other via a third ruled line 7c, and the other side edge is provided on the other side edge. The short side second side plate 2d extends through the fourth ruled line 7d.

One end of each of the first and second long side plates 2a and 2b, for example, the left end in the drawing, is provided with first and second backing plates 3a and 3a through fifth and sixth ruled lines 7e and 7f, respectively. A third and fourth abutment plates 3c and 3d extend through seventh and eighth ruled lines 7g and 7h, respectively, at the other end, for example, on the right side edge in the figure. The first to fourth spacer plates 4a, 4b, 4c, and the first to fourth backing plates 3a to 3d are respectively provided at the leading ends thereof through ninth to twelfth ruled lines 7i, 7j, 7k, 7l. 4d is extended. The first and second spacer plates 4a and 4b are provided along the ninth and tenth ruled lines 7i and 7j with the first and second slits 6a and 6b having a width corresponding to the thickness of the blank A '. Are installed facing each other.

On the short side first side plate 2c, thirteenth and fourteenth ruled lines 7m and 7n are respectively provided at two places separated from the center portion in the longitudinal direction by a predetermined distance to the left and right, respectively, at the tip of the side plate 2c. From the front end of the thirteenth ruled line 7m, and the second cut 5b from the front end of the fourteenth ruled line 7n. 14, and are formed obliquely in the direction away from the thirteenth ruled lines 7m, 7n up to the tip of the short-side first side plate 2c. In the first and second cuts 5a and 5b, a horizontal portion substantially corresponding to the thickness of the blank A 'at a connection portion with the fourteenth and thirteenth ruled lines 7m and 7n is formed by the third ruled line 7c. It is formed in parallel. The distance from the horizontal portion to the third ruled line 7c substantially corresponds to the length of the first and second slits 6a and 6b. The distance from one end (the lower end in the figure) of the short side first side plate 2c to the thirteenth ruled line 7m is equal to the length of the first backing plate 3a, and the other end (the upper end in the figure). ) To the fourteenth cut 7n correspond to the length of the second backing plate 3b, respectively.

The second short side plate 2d has a third slit 6c at a central portion in the longitudinal direction thereof, which corresponds to a thickness of two blanks A 'from the front end to the base end of the side plate 2d. It is formed with the width which does. The distance from both ends of the short side second side plate 2d to the third slit 6c substantially corresponds to the length of the third and fourth backing plates 3c and 3d, respectively.

The first and second cuts 5a and 5b are formed in an L-shape in which the tip is bent outward at right angles by a length corresponding to the thickness of the blank A 'in order to facilitate opening. Also formed are thirteenth and fourteenth ruled lines 7m, 7n that extend diagonally from the tip of the bent portion toward the tip of the shorter first side plate 2c. Also, the first and second spacer plates 4a, 4b have first and second slits 6a, 6b having a width corresponding to the thickness of the blank A 'along the ninth and tenth ruled lines 7i, 7j. Are provided facing each other. The length of the first and second slits 6a and 6b is substantially equivalent to the distance from the tip of the first and second cuts 5a and 5b provided on the short side first side plate 2c to the base end of the side plate 2c. doing.

Thus, in the blank A ′, the side plates 2a to 2d are bent at right angles to the back surface of the top plate 1 along the first to fourth ruled lines 7a to 7d, Further, the respective backing plates 3a to 3d are sequentially bent inward along the fifth to eighth ruled lines 7e to 7h, and the first and second backing plates 3a and 3b are formed on the outer surface of the short side first side plate 2c. Then, the third and fourth backing plates 3c and 3d are respectively superposed on the outer surface of the short side second side plate 2d.

Then, the spacer plates 4a to 4d are bent inward according to the ninth to twelfth ruled lines 7i, 7j, 7k, 7l. On the other hand, a portion 10a surrounded by the first cut 5a and the thirteenth ruled line 7m and a portion 10b surrounded by the second cut 5b and the fourteenth ruled line 7n of the short side first side surface plate 2c are the thirteenth and fourteenth, respectively. First and second openings 9a and 9b are formed in the shorter first side plate 2c by being folded inward along the ruled lines 7m and 7n. The first and second spacer plates 4a and 4b are inserted from the first and second openings 9a and 9b respectively into the short side first side plate 2c, and the first and second slits 6a , 6b are engaged with the short-side first side plate 2c and are fixed to the side plate 2c. The first cut 5a and the portion 10a surrounded by the thirteenth ruled line 7m and the portion 10b surrounded by the second cut 5b and the fourteenth ruled line 7n, which are folded inside the shorter first side surface plate 2c, are respectively formed. It is attached to the first and second spacer plates 4a, 4b to prevent the spacer plates 4a, 4b from returning. Further, the third and fourth spacer plates 4c, 4d are inserted through the third slit 6c provided in the short side second side plate 2d inward from the short side second side plate 2d, The third slit 6c is sandwiched by both edges of the third slit 6c and is fixed to the second short side plate 2d. Thereby, the package A is assembled and its shape is held and fixed.

[0019]

[Effect of the invention]

 The upper package of the small transformer of the present invention is formed by bending and assembling one piece of corrugated cardboard blank as described above, and assembling a large number of members using nails, adhesives, etc. Conventional upper package for small transformers The structure is simple compared to the body and easy to assemble. In addition, because it does not use nails or adhesives for assembly, it has excellent recyclability. Furthermore, since it is made of corrugated cardboard, there is no danger of damaging the terminals even if the terminals are accidentally bumped when mounted on the transformer.

[Brief description of the drawings]

FIG. 1 is a bottom view of an upper package of a small transformer showing an embodiment of the present invention, and shows a transformer in a state where an upper part of the transformer is packed by phantom lines.

FIG. 2 shows a transformer in phantom lines in a sectional view.

FIG. 3 is a perspective view seen from a bottom surface.

FIG. 4 is a development view.

[Explanation of symbols]

 A: Package A ': Corrugated cardboard blank 1: Top plate 2 (2a, 2b, 2d, 2d): Side plate 3 (3a, 3b, 3c, 3d): Backing plate 4 (4a, 4b, 4c, 4d) : Spacer plate 5 (5a, 5b): Cut 6 (6a, 6b, 6c) slit

Claims (1)

[Utility model registration claims] 1. A single blank made of corrugated cardboard is bent and assembled, and is formed on a rectangular square top plate and four peripheral edges of the top plate, each of which is bent downward at right angles to the top plate. Four side plates and a pair of opposing side plates are respectively extended at both ends, each of which is bent at a right angle to the adjacent side plate and overlapped on the other pair of opposing side plate outer surfaces. Four holding plates, each of which is extended at the tip of each holding plate, each of which is bent at a right angle to an adjacent holding plate, and which is bent through an opening or a slit formed in the other pair of side plates. An upper package body for a small transformer, comprising: four spacer plates inserted into a side plate and protruding into a space surrounded by the side plate.