JPH0657234U - Box side plate connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] A male connecting piece and a female connecting piece can be processed continuously to improve productivity and to enable quick assembly. [Structure] At one end of one of the side plates, a male connecting piece including a wedge-shaped recess gradually deepening from the outer surface side toward the inner surface side and a claw protruding outward on the inner surface side of the recess is formed at the end. And a wedge-shaped projection that is formed to extend along the portion and the inner surface gradually becomes thicker from the outer end side to the outer end side at the end of the other side plate, and the inner surface side on the opposite outer end side of the projection. A female connecting piece formed of a groove recessed in the outer surface direction from the side extending along the end, and the one side plate and the other side plate are arranged in a cross shape, and the concave part and the claw of the male connecting piece are formed. The projection and the groove of the second assembly are fitted together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a box of an audio device case, furniture, and the like, and more particularly to a connection structure of a box side plate for connecting side plates thereof.

[0002]

[Prior art]

 As a conventional technique, there is one shown in FIG. In FIG. 7, reference numeral 1 is a box for a speaker, in which a horizontal side plate 2 and a vertical side plate 3 are framed in a rectangular shape, and a back face is closed by a back face plate 4. The horizontal side plate 2 and the vertical side plate 3 have their respective end faces 2a, 3a inclined at an angle of 45 degrees, and a groove (not shown) is extended in the longitudinal direction at the center of the inclined end faces 2a, 3a in the width direction. The end faces 2a and 3a are brought into contact with each other, and at the same time, an elongated plate-shaped labor core 5 is fitted into the groove and connected. Alternatively, as another conventional technique, the end portions of the side plates facing each other are cut in a thickness direction at a predetermined pitch to form a comb-shaped comb (not shown), and the combs are fitted together. In some cases, the above side plates were connected together.

[0003]

[Problems to be solved by the device]

 The former one requires the labor core 5 as a separate member and also has to form a groove into which the labor core 5 fits on each of the end faces 2a and 3a, resulting in poor productivity and troublesome assembly. There was a drawback. On the other hand, in the latter case, the end portions of the side plates are cut at a predetermined pitch in the thickness direction to form a comb-tooth-shaped assembly, so continuous processing cannot be performed, and productivity is poor. It is an object of the present invention to obtain a novel box side plate connecting structure that solves the above drawbacks.

[0004]

[Means for Solving the Problems]

 The present invention is configured as follows to achieve the above object. That is, at one end of the side plate, a male connecting piece consisting of a wedge-shaped recess gradually deepening from the outer surface side toward the inner surface side and a claw protruding outward on the inner surface side of the recess is formed at the end portion. Along the end of the other side plate, a wedge-shaped protrusion whose inner surface gradually becomes thicker from the outer end side to the outer end side, and from the inner surface side on the opposite outer end side of the protrusion. A female connecting piece consisting of a groove recessed toward the outer surface is formed to extend along the end portion, the one side plate and the other side plate are arranged in a cross shape, and the concave portion and the claw of the male connecting piece are formed. It is configured such that the projection and the groove of the second assembly are fitted together.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a front view of a male connecting piece portion thereof, and FIG. 3 is a front view of a female connecting piece portion thereof. In FIG. 1, A is a box for a speaker, for example, and is formed into a rectangular or square shape by frame-forming a pair of horizontal side plates 6 and a pair of vertical side plates 7 facing each other.

The horizontal side plate 6 and the vertical side plate 7 are connected to each other by engaging a male connecting piece 8 and a female connecting piece 9 formed at both ends of each of them. That is, as shown in FIG. 2, the male connecting piece 8 has a wedge-shaped recess at the end (right end) of the lateral side plate 6 that gradually becomes deeper from the outer surface 6a (lower surface) side toward the inner surface 6b (upper surface) side. 8a and a claw 8b projecting outward (to the right) on the inner surface (upper surface) side of the recess 8a are formed along the end of the lateral side plate 6. Further, as shown in FIG. 3, the female connecting piece 9 has an inner surface 7b (left surface) at the end portion (lower end portion) of the vertical side plate 7 from the outer end (lower end) side to the outer outer end side (upper). A wedge-shaped projection 9a having a gradually thicker side and a groove 9b recessed from the inner surface 7b (left surface) side toward the outer surface 7a (right surface) on the opposite outer end side (immediately above) of the projection 9a. It is formed so as to extend along the end of the side plate 7.

The male connecting piece 8 is processed as shown in FIG. That is, on the rotary shaft 11 of the vertical spindle head 10 arranged downward, a stepped disk-shaped cutter 12a having a smaller diameter at the lower portion and a truncated cone-shaped cutter 12b having a smaller diameter at the lower portion are arranged vertically. The shape milling cutter 12 is attached, and while rotating the male general shape milling cutter 12 about the vertical axis, the male type milling cutter 12 is moved along the end surface of the lateral side plate 6 horizontally mounted on the table 16 and the end surface is cut. Then, the male connecting piece 8 described above is formed.

The female connecting piece 9 is processed as shown in FIG. That is, on the rotary shaft 14 of the horizontal spindle head 13 arranged horizontally, a truncated cone-shaped cutter 15a whose right part has a small diameter and a stepped disc-shaped cutter 15b whose right part has a large diameter are arranged on the left and right. A female general-purpose milling cutter 15 is attached, and while this female general-purpose milling cutter 15 is rotated about a horizontal axis, it is moved along the end face of the vertical side plate 7 horizontally mounted on the table 16, Is cut to form the female connecting piece 9 described above. In FIGS. 4 and 5, reference numeral 17 is a jig for floating the end portions of the lateral side plate 6 and the vertical side plate 7 and attaching them to the table 16.

FIG. 6 shows another embodiment. In this product, a male connecting piece 8 similar to the one described above is formed in the middle part where the widthwise both ends 6c of the end part of the lateral side plate 6 are formed, and in the middle part where the widthwise both ends 7c of the vertical side plate 7 are left as described above. A female connecting piece 9 similar to the above is formed, and the both width direction end portions 6c and 7c are formed on a slope of 45 degrees so as to be in contact with each other. In this way, when the horizontal side plate 6 and the vertical side plate 7 are assembled, the male connecting piece 8 and the female connecting piece 9 are not exposed to the outside, and the appearance is improved.

According to the above-described embodiment, the male connecting piece 8 and the female connecting piece 9 are formed to extend along the end faces of the horizontal side plate 6 and the vertical side plate 7 with a predetermined cross-sectional shape, so that the general-purpose milling cutter is formed. The horizontal side plate 6 and the vertical side plate 7 can be processed while being continuously transferred by using a machine, which results in high productivity. Also, at the time of assembly, an adhesive is applied to one of the male connecting piece 8 or the female connecting piece 9 and the vertical side plate 7 is arranged orthogonal to the horizontal side plate 6 so that the vertical side plate 7 is oriented in the horizontal side plate 6 direction. When moved to, the female connecting piece 9 of the vertical side plate 7 fits into the male connecting piece 8 of the horizontal side plate 6, that is, the groove 9b of the female connecting piece 9 fits into the claw 8b of the male connecting piece 8 and engages with each other. In this case, the horizontal side plate 6 and the vertical side plate 7 are maintained in the orthogonal state and are fixed to each other by the above adhesive.

[0011]

As is apparent from the above description, according to the present invention, the male connecting piece and the female connecting piece can be easily and continuously processed, resulting in high productivity and quick assembly. Produce an effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a box body showing an embodiment of the present invention.

FIG. 2 is a front view of a male connecting piece portion showing an embodiment of the present invention.

FIG. 3 is a front view of a female connecting piece portion showing an embodiment of the present invention.

FIG. 4 is a front view showing a processed state of the male connecting piece according to the present invention.

FIG. 5 is a front view showing a processed state of the female connecting piece according to the present invention.

FIG. 6 is a perspective view of a horizontal side plate and a vertical side plate showing an embodiment of the present invention.

FIG. 7 is a front view of a main part of a box body showing a conventional example.

[Explanation of Codes] A Box 6 Horizontal side plate 6a Outer surface 6b Inner surface 7 Vertical side plate 7a Outer surface 7b Inner surface 8 Male connecting piece 8a Recess 8b Claw 9 Female connecting piece 9a Projection 9b Groove 10 Vertical spindle head 11 Rotating shaft 12 Male type Milling Cutter 12a Stepped Disc Cutter 12b Frustum Cone Cutter 13 Horizontal Spindle Head 14 Rotation Axis 15 Female Form Milling Cutter 15a Frustum Cutter 15b Stepped Disc Cutter 16 Table 17 Jig

Claims (1)

[Scope of utility model registration request] 1. A male connecting piece comprising a wedge-shaped concave portion that gradually deepens from the outer surface side toward the inner surface side and an outwardly projecting claw on the inner surface side of the concave portion at the end portion of one side plate. A wedge-shaped projection is formed along the end portion, and the inner surface side is gradually thickened from the outer end side toward the outer end side at the end portion of the other side plate, and the opposite outer end side of the projection. A female connecting piece consisting of a groove recessed from the inner surface side to the outer surface side is extended along the end portion, the one side plate and the other side plate are arranged in a cross shape, and the concave portion and the claw of the male connecting piece are arranged. And box are fitted to the projection and the groove of the second assembly, and the connecting structure for the side plate for the box body is characterized in that