JP2005207560A - Frame connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame connecting structure capable of improving perpendicularity and perpendicular strength in perpendicular connection between frames. <P>SOLUTION: In the frame connecting structure, a side surface of one frame 1 and an edge surface of the other frame 2 are interconnected via a connecting member 3. The connecting member 3 is like a plate longer than the edge surface of at least the other frame 2. The connecting member 3 is fixed to the edge surface of the other frame 2, and is inserted into a dovetail groove 11 disposed in a side surface of one frame 1. A fixing screw 4 is screwed into the connecting member 3 toward a depth wall surface 111 in the dovetail groove 11 to press the depth wall surface 111 with its tip, thereby pressing and fixing the connecting member 3 to a front wall surface 112 in the dovetail groove 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The invention of this application relates to a frame connection structure. More specifically, the invention of this application relates to a frame connection structure that is useful for right angle connection between various frames and can improve the right angle accuracy and the right angle strength.

Conventionally, as a structure for connecting frames at right angles to each other, for example, a structure described in Patent Document 1 is known. In this structure, one frame and another frame are connected at right angles via a connecting member and a joint member. More specifically, one end of the connecting member is connected to the small edge surface of the other frame by a tapping screw. The joint member is pivotally attached to the other end of the connecting member, and the joint member is engaged with the dovetail groove provided on the side surface of the one frame so that the side surface of the one frame and the small edge of the other frame The surface is brought into contact with each other and is connected at a right angle.
JP-A-8-303417

  However, in the conventional frame connection structure described in Patent Document 1, since the joint member inserted into the dovetail groove on the side surface of the frame is short, the joint member is only locked to the dovetail groove. Therefore, the wobbling of the frame is likely to occur, and it is difficult to keep the right angle accuracy and right angle strength high.

  Therefore, in view of the circumstances as described above, an object of the invention of this application is to provide a frame connection structure that can improve the right angle accuracy and the right angle strength in the right angle connection.

  In order to solve the above problems, the invention of this application is first a frame connection structure in which a side surface of one frame and a fore edge surface of another frame are connected at right angles to each other via a connection member. The connecting member has a plate-like shape that is at least longer than the small edge surface of the other frame, and is fixed to the small edge surface of the other frame, and is inserted into the dovetail provided on the side surface of the one frame. Furthermore, by screwing the fixing screw into the connecting member toward the back wall surface in the dovetail groove and pressing the back wall surface at the tip, the connecting member is pressed against the front wall surface in the dovetail groove and fixed. A frame connection structure is provided.

  Secondly, the connecting member further has a contact portion protruding outward, and when the connection member is fixed to the facet surface, the contact portion is in the opening provided in the other frame. The frame connecting structure is provided so as to be in contact with a surface.

  According to the first frame connection structure, the long connection member as described above is used, and the connection member is fixed in the small face of another frame and the dovetail groove of one frame as described above. By doing so, the frames can be connected at right angles with higher right angle accuracy and right angle strength than in the prior art.

  According to the second frame connection structure, the same effect as that of the first connection structure can be obtained, and a contact portion is provided on the connection member and inserted into another frame as described above. Thus, the right angle accuracy and right angle strength can be further improved.

  1 and 2 each show one embodiment of the invention of this application.

  In the embodiment of FIGS. 1 and 2, the connecting member (3) for connecting the one frame (1) and the other frame (2) at right angles to each other at the side surface and the fore edge surface includes at least the other frame. It has a long plate-like shape that is longer than the facet of (2), and is fixed to the facet of the other frame (2) at the screw through hole (31) for the fixing screw (4). (Refer to FIG. 2), and a screw hole (32a) (32a) for fixing screws (5a) and (5b) is provided in a portion fixed to the side surface of one frame (1) further extending from the small face fixing portion. 32b) (see FIG. 2).

  First, the connecting member (3) is fixed to the fore edge surface of the other frame (2). More specifically, this fixing is performed by, for example, screw holes (21) provided in the other frame (2) through the screw through holes (31) through the fixing screws (4) (FIG. 1B). This is done by screwing into (see).

  Next, the whole connection member (3) fixed to the facet surface is inserted into a dovetail groove (11) provided along the longitudinal direction on the side surface of one frame (1). In this state, the fixing screws (5a) and (5b) are screwed into the screw holes (32a) and (32b) toward the back wall surface (111) in the dovetail groove (11), and project from the screw holes (32a) and (32b). Press the back wall (111) with the screw tip. As a result, the connecting member (3) itself is attracted toward and pressed against the front wall surface (112) in the dovetail groove (11), that is, the inner wall surface located near the groove inlet facing the back wall surface (111). And fixed in the dovetail groove (11).

  As described above, the long plate-like connecting member (3) firmly fixed to the small groove surface of the other frame (2) and the dovetail groove (11) on the side surface of the one frame (1) can achieve high right angle accuracy and right angle. The frame right angle connection with strength is realized.

  Moreover, in embodiment of FIG. 1, the connection member (3) is provided with the contact part (33a) (33b) which protruded outward.

  More specifically, a plurality of contact portions (33a) (33b) projecting in the direction of the small edge surface of the other frame (2) are provided at the small edge surface fixing portion as described above of the connecting member (3). Yes. In the other frame (2), a plurality of openings (22a) (22b) such as grooves and hollow portions are provided, and the contact portions (33a) (33b) are respectively provided in the openings (22a) (22b). ) And the shape corresponding to. In the present embodiment, one contact portion (33a) is positioned so as to sandwich the support piece (211) (see FIG. 1B) of the screw hole portion (21) in the corresponding opening (22a). The other contact portion (33b) is in the same position as the corresponding opening (22b) and has an outer surface shape along the inner wall surface shape.

  The connecting member (3) is first inserted into the openings (22a) and (22b) so that the contact portions (33a) and (33b) are in contact with the inner wall surface thereof, thereby the other frame (2 In this state, the fixing screw (4) is further screwed in as described above, so that the screw is fixed to the small edge surface. In the present embodiment, the contact portion (33b) is also fixed to the other frame (2) by screwing the fixing screw (6) through the screw through hole (331).

  By the presence and insertion of the contact portions (33a) and (33b) as described above, the right-angle strength can be further improved.

  Of course, the invention of this application is not limited to the above embodiments, and various aspects are possible for details.

  As described in detail above, the invention of this application provides a frame connection structure that can improve the right angle accuracy and the right angle strength in the right angle connection.

(A) (b) (c) is the top view, side view, and front view which respectively illustrated one Embodiment of invention of this application. (A), (b), and (c) are the top view, the side view, and the front view which respectively illustrated the connection member in embodiment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 11 Dovetail 111 Back wall 112 Front wall 2 Other frame 21 Screw hole part 211 Supporting piece 22a, 22b Opening part 3 Connection member 31 Screw through-hole 32a, 32b Screw hole 33a, 33b Contact part 331 Screw through-hole 4 Fixing screw 5a, 5b Fixing screw 6 Fixing screw

Claims (2)

A frame connecting structure for connecting a side surface of one frame and a fore edge surface of another frame at right angles to each other via a connecting member,
The connecting member is in the form of a plate that is longer than at least the facet of another frame,
The connecting member is fixed to the small face of another frame and inserted into a dovetail provided on the side of one frame, and a fixing screw is screwed into the connecting member toward the inner wall of the dovetail. A frame connecting structure characterized in that the connecting member is pressed against and fixed to the front wall surface in the dovetail by pressing the back wall surface at the tip.   The connecting member further has a contact portion protruding outward, and the contact portion comes into contact with the inner peripheral surface of the opening provided in the other frame when fixed to the facet surface. The frame connecting structure according to claim 1, wherein the frame connecting structure is inserted into the frame.

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