JPH0646976U - Ring binder - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Stabilize the open / close lever to prevent noise and smooth the lever operation. [Structure] When the opening / closing lever 10 is tilted, the grasping portion 11 is tilted, the opening / closing lever 10 rotates around the tip of the engaging portion 12 as a fulcrum, the tip of the horizontal portion 13 abuts on the groove hole peripheral portion, and the pair of operating plates 5 is moved. It smoothly turns upward with the outer side edge as a fulcrum to form a V shape, and a plurality of binding rings are opened. When closing the binding ring 8,
The actuating plate 5 turns around both sides thereof as fulcrums, the center of the actuating plate is pushed downward, the actuating plate has an inverted C shape, and the opening / closing lever smoothly turns in the upright direction accordingly. When the grasping portion 11 is further rotated in the upright direction, the lower portion of the vertical portion 17 comes into contact with the peripheral portion of the groove hole, the grasping portion comes into contact with the side end of the main body frame, and rotation of the opening / closing lever in the upright direction is prevented. The open / close lever is locked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a binder metal fitting, and more particularly to the structure of a ring binder having an opening / closing lever.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 4, for example, a ring binder has a pair of operating plates 23, 23 interposed by abutting an engaging portion 22 in a curved body frame 21. The binding ring 25 erected on the operating plates 23, 23 is configured to open and close by being pressed by the opening and closing levers 30 which are attached to both ends and which are shaped like a figure 7 in side view. In the opening / closing lever 30, the longer vertical portion 31 is used as a finger rest portion 32, and a pair of deep notches 35, 35 are provided on both sides of the continuous portion of the horizontal portion 33 and the shorter vertical portion 34. A neck portion 36 is provided as a portion, and the neck portion 36 is configured to be fitted into an opening 26 provided by cutting out a portion near the end of the engaging portion 22 of the operating plates 23, 23.

[0003]

[Problems to be solved by the device]

 However, in the ring binder structure of the above-mentioned method, a neck is formed by providing a pair of deep cuts at both ends of the continuous portion of the horizontal portion and the shorter vertical portion, and the neck portion is punched in the operating plate. The opening / closing lever is attached to the operating plate by engaging with the opening provided, but the opening is slightly longer in the longitudinal direction of the operating plate so that the opening / closing lever can be freely inverted. Therefore, there is a problem in that the opening / closing lever is not stably arranged, and the opening / closing lever is violently moved. Further, since the opening / closing lever is not stably arranged and violently moves, a rattling rattling noise is generated, and it is difficult to operate the opening / closing lever when opening / closing the binding ring.

Therefore, the present invention has a stable arrangement of the opening / closing lever, prevents a rattling rattling noise, and is configured so that the opening / closing lever can be operated smoothly when opening and closing the binding ring, thereby solving the above-mentioned problems. The purpose is to provide the ring binder.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of the above circumstances, and includes a main body frame having both side portions bent inward, and a plurality of binding rings that are installed inside the main body frame and that are provided at both ends in the longitudinal direction. A pair of operating plates each having a notch groove on the outer side of the section and a groove hole at the center of both ends in the longitudinal direction; An engaging portion protruding from both sides of the lower portion of the grasping portion and having an end bent outwardly to engage with the peripheral portion of the notch groove; a horizontal portion formed by bending the grasping portion in a substantially horizontal direction; A state in which a horizontal portion is bent in a substantially vertical direction, and a vertical portion which is provided with notches on both sides of a lower portion and fits into the groove hole is provided, and an opening / closing lever having the opening / closing lever When the open / close levers are erected so that they can be erected / fallen in the groove holes and the notch grooves of the pair of operating plates, It is characterized in that the binding ring is closed in a V shape and the pair of actuating plates is in a C shape to open the binding ring when the opening / closing lever is laid down. .

[0006]

[Action]

 Based on the above configuration, when increasing or changing the binding paper, first, when the opening / closing lever is tilted down in the binding state of the binding paper, the grasping part falls down and the opening / closing lever with the tip of the engaging part as a fulcrum. Pivots, the tip of the horizontal part comes into contact with the peripheral part of the groove hole, and the pair of actuating plates smoothly pivots upward with the outer side ends as fulcrums, resulting in a V-shape. The binding ring of is released. Then, increase or decrease the binding paper and replace it.

After that, when the plurality of binding rings are closed, the pair of actuation plates start to rotate with both sides of the actuation plates as fulcrums, the center of the actuation plates is pressed downward, and the actuation plates have an inverted C-shape. Along with that, the opening / closing lever smoothly rotates in the standing direction. When the grasping portion is further rotated in the upright direction, the lower portion of the vertical portion comes into contact with the peripheral portion of the slot and the grasping portion comes into contact with the side end of the main body frame to prevent the opening / closing lever from rotating in the upright direction. The open / close lever is locked. In addition, since the tip of the engaging portion is engaged with the peripheral portion of the notch groove in both the fallen state and the upright state of the open / close lever, the open / close lever does not move freely and operates smoothly.

[0008]

【Example】

 An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a structure of a ring binder according to the present invention. As shown in FIG. 1, a body frame 1 is curved upward and extends in a longitudinal direction. The end portion is provided with a convex portion 1a that is curved upward. Inside the main body frame 1, a pair of operating plates 5 and 5 are installed by engaging the engaging claws 2 and 2 and abutting the engaging portion 3. Notch grooves 6 and 6 are formed at both side edge portions in the vicinity of both ends of the operating plates 5 and 5, and the operating plates 5 and 5 sandwiched by the notch grooves 6 and 6 have a groove hole 7 at the center of both end portions. Further, a plurality of binding rings 8 are erected on the operating plates 5 and 5. Mounting portions 9 and 9 having mounting holes for fixing the ring binder fittings to the inner surface of the back portion of the binder are fixedly provided near both ends of the body frame 1.

Further, the notch grooves 6, 6 and the groove hole 7 are configured so that the engaging portions 12, 12 and the vertical portion 17 formed on the opening / closing lever 10 are engaged. The opening / closing lever 10 is engaged with the notch grooves 6 and 6, and has a grasping portion 11 provided with engaging portions 12 having outwardly bent tips 12a at both ends, and the grasping portion 11 is horizontally bent. The horizontal part 13 and the projections 15 and 15 projecting from both ends of the horizontal part 13 and the notches 16 and 16 that bend the horizontal part 13 in the vertical direction and fit into the slot 7 on both lower sides. It is formed from the vertical portion 17.

FIG. 2 is a bottom view showing a ring binder according to the present invention. As shown in FIG. 2, both sides of the body frame 1 are bent inward to form bent portions 1b. Both ends in the longitudinal direction of the bent portion 1b are bent obliquely upward to form a bent portion 1c. The outer portions of the cutout grooves 6, 6 which are the contact portions of the bent portions 1c of the operating plates 5, 5 are also bent obliquely upward to form the engaging portions 5a, 5a, and the groove holes 7 are formed. Holding grooves 5b, 5b with which the above-mentioned projections 15, 15 are engaged and held are engraved on both side peripheral portions.

As shown in FIG. 3, when the opening / closing lever 10 is upright, the grasping portion 11 abuts on the side end of the main body frame 1, and the tip 12a of the engaging portion 12 of the actuating plates 5, 5 moves. The engaging portions 5a, 5a are engaged with each other, the engaging portion 12 is engaged with the bent portion 1c, the open / close lever 10 is locked, and the operating plates 5, 5 have an inverted C-shape and are bound. Ring 8 is now closed. When the grasping portion 11 of the opening / closing lever 10 is laid down, the tip 12a of the engaging portion 12 engages with the engaging portions 5a and 5a of the operating plates 5 and 5, and the tip of the vertical portion 17 contacts the convex portion 1a. When they come into contact with each other and slide, the protrusions 15 and 15 come into contact with the holding grooves 5b and 5b, and the operating plates 5 and 5 rotate upward with the outer side ends as fulcrums to form a V-shape. Is open.

Since this embodiment is configured as described above, the function of the ring binder will be described. When the grasping portion 11 of the opening / closing lever 10 is laid down to increase / decrease or replace the binding paper, the tip of the vertical portion 17 comes into contact with and slides on the convex portion 1a, and the projections 15 and 15 are retained in the holding grooves 5b and 5b. And presses the centers of the operating plates 5 and 5 upward, the opening / closing lever 10 rotates about the tip 12a of the engaging portion as a fulcrum, and the operating plate starts driving on both sides as a fulcrum. 5 and 5 are smoothly formed into a V shape, and accordingly, the plurality of binding rings 8 erected on the operation plates 5 and 5 are opened, and the binding sheets are increased or decreased and replaced. As a result, the tip of the vertical portion 17 comes into contact with the convex portion 1a, the opening / closing lever 10 rotates about the tip 12a of the engaging portion as a fulcrum, and the projections 15 and 15 come into contact with the holding grooves 5b and 5b to move the operating plate 5a. 5 Since the center is pushed upward, the opening / closing lever 10 can be operated smoothly. Further, the tip 12a of the engaging portion and the engaging portion 5a of the operating plate 5 are engaged, the tip of the vertical portion 17 abuts on the convex portion 1a, and the projections 15 and 15 abut on the holding grooves 5b and 5b. Therefore, the opening / closing lever 10 is locked and does not move freely.

Then, when the binding ring 8 is rotated in the closing direction to be in the closed state, the operating plates 5, 5 start rotating with the both sides of the operating plate as fulcrums, and the centers of the operating plates 5, 5 are pressed downward. The operating plates 5 and 5 have an inverted V shape, and the opening / closing lever 10 smoothly rotates in the standing direction with the tip 12a as a fulcrum. Then, when the grasping portion 11 is further rotated in the upright direction, the tip of the vertical portion 17 is released from contact with the convex portion 1a, and the lower portion of the vertical portion 17 comes into contact with the peripheral portion of the groove 7 to hold the protrusions 15 and 15. The contact between the grooves 5b, 5b is released, the engaging portions 12, 12 move in the notch grooves 6, 6 to engage with the bent portion 1c, and the grasping portion 11 contacts the side end of the main body frame 1. As a result, the opening / closing lever 10 is prevented from rotating in the upright direction. As a result, the operation of the opening / closing lever 10 can be performed smoothly, and the tip end of the vertical portion 17 abuts on the inside of the main body frame 1, and the tip end 12a engages with the engaging portions 5a, 5a of the operating plates 5, 5 to engage and engage. Since the parts 12, 12 engage with the bent part 1c and the grasping part 11 abuts on the side end of the main body frame 1, the opening / closing lever 10 is locked and does not move freely.

Therefore, the opening / closing lever 10 is locked even when the binding ring 8 is closed or when the binding ring 8 is open, and the opening / closing lever 10 is rotated by the lever action with the tip 12a as a fulcrum. Therefore, the opening / closing lever 10 can be smoothly and reliably rotated with a small force, and there is no possibility that the opening / closing lever 10 will violently move.

[0015]

[Effect of device]

 As described above, according to the present invention, since the opening / closing lever is actuated by the leverage with the tip of the engaging portion as a fulcrum, the opening / closing lever can be smoothly and reliably operated with a small force. At that time, there is no possibility that the open / close lever will rattle and may move. The tip of the engaging portion of the opening / closing lever engages with the peripheral portion of the notch groove, and the vertical portion of the opening / closing lever is fitted in the groove hole. Even when is open, it is locked and the open / close lever does not move.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure of a ring binder of the present invention.

FIG. 2 is a bottom view showing a ring binder of the present invention, (a) is a bottom view showing a state in which a binding ring is closed, and (b) is a bottom view showing a state in which the binding ring is open.

FIG. 3 is a side view showing the operation of the ring binder of the present invention.

FIG. 4 is a perspective view showing a conventional ring binder structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main frame 1a Convex part of main frame 1b Bent part of main frame 1c Bent part of main frame 2 Engaging claw 3 Engaging part 5 Actuating plate 5a Engaging part 5b Retaining groove 6 Notch groove 7 Groove hole 8 Binding ring 9 Mounting part 10 Opening / closing lever 11 Grasping part 12 Engaging part 12a Tip of engaging part 13 Horizontal part 15 Protrusion 16 Notch 17 Vertical part

Claims (1)

[Scope of utility model registration request] 1. A main body frame formed by bending both sides inward, a plurality of binding rings are provided inside the main body frame, and notch grooves are provided at outer portions of both ends in the longitudinal direction. A pair of actuating plates each having a slot at the center of both ends in the direction, and having a shape of an upside-down 7 in a side view, and a grasping part and a protrusion protruding on both sides of the lower part of the grasping part and the tips being outwards. An engaging portion that is bent and engages with the peripheral portion of the notch, a horizontal portion that is formed by bending the grasping portion in a substantially horizontal direction, and a horizontal portion that is bent in a substantially vertical direction on both sides of the lower portion. An opening / closing lever having a vertical portion provided with a notch and fitted into the groove hole is provided, and the opening / closing lever is erected in the groove hole and the notch groove of the pair of operating plates in a state where the grasping portion protrudes outward. -In a state in which the opening and closing levers are erected so as to be able to fall freely, the pair of actuating plates have an inverted C-shape to close the binding ring, and A ring binder characterized in that, when the opening / closing lever is laid down, the pair of actuating plates have a V-shape and the binding ring is opened.