JPH01146002U

JPH01146002U -

Info

Publication number: JPH01146002U
Application number: JP4349488U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-06

Description

[Brief explanation of the drawing]

第１図および第２図は本考案をカートの骨組構
造に適用した一実施例を示すもので、第１図は要
部を示す断面図、第２図は骨組構造を示す分解斜
視図である。第３図はコーナーブロツクと駒ブロ
ツクとにローレツトを形成した変形例を示す断面
図、第４図はフレームに溝を形成した変形例を示
す断面図、第５図は駒ブロツクの当接面を凸円弧
面とした変形例を示す断面図、第６図はフレーム
を鋭角に連結する場合のコーナー結合具を示す断
面図、第７図はフレームを鈍角に連結する場合の
コーナー結合具を示す断面図、第８図は第６図の
コーナー結合具を用いて組立てたフレーム構造体
を示す斜視図である。第９図および第１０図はそ
れぞれ従来のコーナー連結方法を示す斜視図であ
る。１１Ａ〜１１Ｄ……縦フレーム、１２Ａ〜１２
Ｄ……横フレーム、１３Ａ〜１３Ｄ……前後フレ
ーム、１４Ａ〜１４Ｈ，１４Ｉ，１４Ｊ……コー
ナー結合具、２１〜２３，２１Ａ，２１Ｂ，２２
Ａ，２２Ｂ……突起部、２４，２４Ａ，２４Ｂ…
…コーナーブロツク、２５〜２７……駒ブロツク
、２８〜３０……ボルト（締付部材）、３５，３
６……傾斜面、３６Ａ……凸円弧面、５１Ａ，５
１Ｂ，５２Ａ，５２Ｂ，５３Ａ，５３Ｂ，５４〜
５９……フレーム。 Figures 1 and 2 show an embodiment in which the present invention is applied to the frame structure of a cart. Figure 1 is a sectional view showing the main parts, and Figure 2 is an exploded perspective view showing the frame structure. . Fig. 3 is a sectional view showing a modification in which knurlings are formed on the corner block and the piece block, Fig. 4 is a sectional view showing a modification in which grooves are formed in the frame, and Fig. 5 shows the contact surface of the piece block. A cross-sectional view showing a modified example with a convex arc surface, FIG. 6 is a cross-sectional view showing a corner connector when connecting frames at an acute angle, and FIG. 7 is a cross-sectional view showing a corner connector when connecting frames at an obtuse angle. FIG. 8 is a perspective view showing a frame structure assembled using the corner connector of FIG. 6. FIGS. 9 and 10 are perspective views showing conventional corner connection methods, respectively. 11A-11D...Vertical frame, 12A-12
D...Horizontal frame, 13A-13D...Front and rear frame, 14A-14H, 14I, 14J...Corner connector, 21-23, 21A, 21B, 22
A, 22B... protrusion, 24, 24A, 24B...
... Corner block, 25-27 ... Piece block, 28-30 ... Bolt (tightening member), 35,3
6... Inclined surface, 36A... Convex arc surface, 51A, 5
1B, 52A, 52B, 53A, 53B, 54~
59...Frame.

Claims

[Claims for Utility Model Registration] (1) A frame corner connector that connects at least two or more cylindrical frames to each other at an arbitrary angle, which has a protrusion that can fit into the end of at least one frame. a corner block having an arbitrary angle in the axial direction with respect to the frame; a piece block insertable into the end of the at least one frame; a tightening member that tightens the piece block in a direction perpendicular to the axis when the piece block is tightened by the tightening member; A corner connector for a frame, characterized in that it is formed into a shape that allows it to slide into the frame. (2) A frame corner connector that connects at least two or more cylindrical frames to each other at approximately right angles, which includes a cubic-shaped main body, and at least two or more orthogonal faces of the main body are attached to the ends of each of the frames. a corner block having a protrusion that can be fitted into the frame in a substantially perpendicular axial direction; a piece block that can be inserted into the end of each of the frames; a bolt to be tightened toward the axial end face of each projection, and a stepped bolt insertion hole for inserting the bolt from the main body of the corner block toward the axial direction of each projection. Also, the contact surface between each of the protrusions and the piece block is formed in a shape that causes the piece block to slide in a direction perpendicular to the axis when the piece block is tightened with the bolt. frame corner connectors. (3) Scope of claims for utility model registration, paragraph 1 or 2
3. The frame corner connector according to claim 1, wherein the abutting surfaces between each of the protrusions and the piece block are formed as inclined surfaces that are inclined with respect to their axes.