JPH0120141Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is based on a binding device, specifically, a base body having a substantially U-shaped cross section that is fixed to the inside of the spine, and has a large number of openings along its length. A spelling body is formed by connecting a number of inverted U-shaped spelling rods at one end thereof, and the spelling rods are inserted into each of the openings, so that the spelling body can be rotated with respect to the base body. The present invention relates to a binding tool, which is provided in a binding tool, and the binding rod is opened and closed by rotation of the binding body.

As shown in FIG. 5, for example, this type of binding tool has a base body 51 having a U-shaped cross section with a lip, and a pressing body 53 having an L-shaped cross section and a pressing portion 52 in the base body 51 in the width direction of the base body 51. A plurality of springs 54 are interposed between the pressing part 52 of the pressing body 53 and one side wall 51a of the base body 51, and the springs 54 push the spelling through the pressing part 52. There is a structure in which the connecting portion 55a of the body 55 is pressed against the other side wall 51b of the base body 51 to provide resistance to the rotation of the binding body 55 and to maintain the open/closed position of the binding rod 55b.

However, in the case of a binding tool having such a configuration, when opening the binding rod 55b from the closed state, the pushing body 53 is pushed against the spring with the connecting portion 55a side of the binding body 55 as a fulcrum. Since it is pressed and moved toward one side wall 51a and rotated, there is a problem that if the elastic force of the spring 54 is strong, it is difficult to rotate and open the spelling body 55, making it difficult to open the spelling rod 55b easily. In addition, if the spring force of the spring 54 is weakened in order to facilitate the rotation of the binding body 55, if an external force is applied to the binding rod 55b, the binding rod 55b may be inadvertently rotated and pieces of paper may be attached to the binding rod 55b. There was a problem with this.

This invention was devised in view of the above problems, and the purpose is to incorporate a pressing rod inside the base,
Movement of the pusher rod in its longitudinal direction causes the pusher rod to selectively fit within the base in a tight fit or a loose fit, thereby The spelling body can be fixed and unfixed, and when the spelling body is released from fixation, the spelling body can be freely rotated, so that the spelling rod in the spelling body can be opened and closed lightly and easily. The present invention is capable of reliably preventing the binding rod from opening when it is fixed.

Hereinafter, embodiments of the present invention will be described based on the drawings.

The binding device according to the embodiment of the present invention shown in FIG.
Also, a pressing rod 5 is incorporated for pressing and fixing the spelling body 2 or releasing the fixing. Then, pieces of paper 4 are inserted into the binding body 2 and the pieces of paper 4 are bound.

As shown in FIGS. 1 and 2, the spelling body 2 is made by processing a single elongated piece of metal to form a large number of spelling rods 21 that are bent in an inverted U shape and double. , these binding rods 21 are formed such that one end side thereof is connected to each other by a connecting body 22.

Further, the base 1 is made of a thin metal plate,
The cross-sectional shape is U-shaped with a lip, and a large number of openings 13 are provided along the longitudinal direction at the corners of two surfaces of the upper surface 11 and one side wall 12.
Receiving holes 14 are provided at the corner portions of two faces of the side wall 16 and the other side wall 16, and at positions corresponding to the openings 13. In this way, by installing the binding body 2 in the base body 1 as shown in FIG. 2, the binding rod 21 of the binding body 2 can be provided to protrude from each opening 13, and the tip of the binding rod 21 can be provided. The receiving hole 1
This is so that it can be pushed into the 4th stage.

In the binding tool constructed as described above, a pressing rod 5 having a rectangular cross-section and having approximately the same length as the base body 1 is housed inside the base body 1 so as to be able to freely slide in the longitudinal direction, so that it is loosely fitted. be. The other side wall 16 of the base 1 facing the connecting body 22 and the side surface 5a of the pressing rod 5 facing the side wall 16 are fitted at both ends and the center in the longitudinal direction, respectively. A pair of engaging portions (only the lower end portion is shown) each consisting of a hole 15 and a protrusion 5b that fit together are provided.

Further, the protrusion 5b has a wedge shape with an arcuate surface 5c, and the protrusion 5b moves the pressing rod 5 in the direction of arrow A in FIG. When brought into contact with each other, the pressing rod 5 and the base body 1 are formed so as to fit in an interference fit with the connecting body 22 interposed therebetween.
Moreover, when the projection 5b and the hole 15 are fitted together,
The pressing rod 3 and the base body 1 are formed into the above-mentioned loose fit.

Note that 6 is an operating piece provided on the pressing rod 5. Again 7
1 is a rivet that fixes the base 1 to the spine;
Reference numeral 7 designates an insertion hole provided in the pressing rod 5 into which the rivet 7 is loosely inserted. Further, reference numeral 18 denotes an auxiliary plate fixed to the pressing rod 5, which increases the thickness of the pressing rod 5 to ensure the fixation of the binding body 2.

Next, the operation of this embodiment will be explained based on FIGS. 3 and 4.

First, the case of binding the pieces of paper 4 shown in solid lines in FIGS. 3 and 4 will be explained.

The tip of the binding rod 21 through which the piece of paper 4 has been inserted is inserted into the receiving hole 14, and then the pressing rod 5 is pushed in the direction of arrow A in FIG. 3 from the one-point chain state in FIG. Then, the pressing rod 5 touches the protrusion 5.
It moves not only in the direction of arrow A but also in the width direction while being guided by the arcuate surface 5c of b. As shown by solid lines in FIGS. 3 and 4, the top 5d of the protrusion 5b
When the pressing rod 5 is pushed in until it contacts the side wall 16, the pressing rod 5 and the base body 1 are connected to the binding body 2.
Since the connecting body 21 and the binding rod 22 are tightly fitted together through the base, the binding body 2 is held between the pressing rod 5 and the side wall 16, and is attached to the base 1 without rotation. However, it can be fixed securely. Therefore, even if an external force is accidentally applied to the binding rod 21 during binding, the binding body 2 will not open accidentally.

Next, a case will be described in which the binding rod 22 is opened to allow a piece of paper to be attached or removed.

In this case, when the pressing rod 5 in the state shown by the solid line in FIG. 3 is pulled and moved in the direction of arrow B in FIG. The pressing rod 5 comes into contact with and stops. After that, when the binding body 2 is rotated in the direction of arrow C in FIG. 4, the binding rod 21
rotates around the lower inner surface E of each opening 13 until the pressing rod 5 comes into contact with the side wall 16, and stops in the state shown by the dashed line in FIGS. 3 and 4.

At that time, since nothing is provided to brake the sliding movement of the pressing rod 5 in the width direction, the spelling rod 21
can be easily rotated by pushing aside the pressing rod 5.

In the embodiment described above, a projection is provided on the side of the pressing rod 5 and a hole 15 is provided on the side wall 16 to form a pair of engaging portions. may be provided.

As described above, the present invention forms a large number of openings along the length of the base body, which has a substantially U-shaped cross section and is fixed to the inside of the spine, and also has a large number of inverted U-shaped openings.
forming a spelling body consisting of glyph spelling rods and a connecting body connecting one end side of these spelling rods, and inserting each of the spelling rods of the spelling body into each of the openings,
The spelling body is provided to be rotatable relative to the base body, and a press rod is provided inside the base body so as to be movable in the length direction of the base body, and the connecting body is connected between one side wall of the base body and the press rod. a pair of engaging portions are provided between the other side wall of the base body and the pressing rod, and the pressing rod is moved in the longitudinal direction;
By disengaging and disengaging the pair of engaging portions,
The pressing rod is moved in the width direction, and the pressing rod is configured to press and fix the spelling body to the other side wall of the base body or release the pressing, so the pressing rod is moved in the length direction. With this simple operation, the pressing portion of the pressing rod can press and fix the spelling body and release the pressure, while allowing the spelling body to freely rotate when the spelling body is released from fixation. , the binding rod of the binding body can be opened and closed lightly and easily, paper pieces can be loaded and removed from the binding rod quickly and easily, and when the binding body is fixed, no external force is applied to the binding body. Even if something like that happens, the spelling rod will surely be prevented from opening,
It is possible to reliably prevent a portion of the piece of paper from accidentally coming off from the binding rod.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the main parts, Figs. 3 and 4 are explanatory views explaining the same operation, and Fig. 5 is an explanatory view of a conventional example. . 1...Base body, 2...Spelling body, 21...Spelling rod,
22... Connecting body, 5... Pressing rod, 5a... Side surface,
5b... protrusion (engaging part), 12, 16... side wall,
13...opening part, 15...hole (engaging part).

Claims (1)

[Scope of utility model registration request] A base body fixed to the inside of the back cover and having a substantially U-shaped cross section has a number of openings along its length, and a connection that connects a number of inverted U-shaped spelling rods and one end side of these spelling rods. The binding rods of the binding body are respectively inserted into the respective openings to provide the binding body rotatably relative to the base body, while the pressing rods are attached to the base body. is installed movably in the length direction of the base, the connecting body is interposed between one side wall of the base and the pressing rod, and a pair of connecting bodies are provided between the other side wall of the base and the pressing rod. An engaging portion is provided, and the pressing rod is moved in the length direction to disengage and disengage the pair of engaging portions, so that the pressing rod is moved in the width direction, and the binding body is moved by the pressing rod. A binding tool characterized in that it is configured to be fixed by pressing on or released from the other side wall of the base body.