JPH0448939Y2 - - Google Patents

Description

[Detailed Description of the Invention] 1. Purpose of the Invention The present invention relates to a stapler for office use, and particularly relates to a lid portion of the stapler.

Conventionally, the inventor of the present invention has already proposed a method in which the spring plate installed in the lid of a stapler and the bite part at the tip of the stapler slide forward and backward as one, and when in use, the front part of the lid is in an open state relative to the base body. Several applications have been filed for devices in which the front part of the lid is closed parallel to the base body when not in use (for example, Utility Model Application No. 130226/1983 (Utility Model Application No. 38979/1989) Publication), Utility Model Application No. 185375 (1988) (Utility Model Application No. 1987-91381), and Utility Model Application No. 61-185376 (Utility Model Application No. 63-91382)), all of which have their lids in an expanded state. After opening, the spring plate with a bite was operated forward or backward, or a lever installed on the top of the lid was slid forward or backward, so the former method was time-consuming, and the latter method required the lever to be moved forward or backward. When pressed, the lid was naturally pressed, which caused the cutting tool to be pushed downward and catch on the front end of the needle cap, making it inoperable.

Therefore, the object of the present invention is to provide a more practical stapler that eliminates these drawbacks.

2. Structure of the invention The structure and operation of the invention will be explained with reference to the embodiments shown in the drawings.

1 is a base body, and a needle bending base 2 is installed on the upper surface of the tip of this base body.
will be established. Reference numerals 3 and 3 denote side plates erected on both left and right sides near the base end of the base body 1, and a pivot 4 is installed at the bases of both side plates. Reference numeral 5 denotes a needle case body, and a contraction bullet 6 is installed in the center of the interior of the needle case body. 8' and presses the staple at all times. The pivot shaft 4 is inserted through the left and right ear portions 9, 9 at the rear end of the needle housing 5 and the side plates 3, 3. The needle housing 5 is also provided with a horizontal protrusion 10 at a suitable position at the rear of one side thereof. 5′
is the front wall portion of the needle cover body 5, the central portion of which protrudes slightly upward. Reference numeral 11 denotes a lid body installed above the needle housing 5 so as to be freely openable and closable, and the pivot shaft 4 is rotatably connected between the base end portions of the left and right side parts 12, 12 of this lid body. 13, 13' are this lid body 11
Two chevron-shaped grooves, front and rear, are provided at appropriate positions on the inner upper surface of the cylindrical groove, and a concave groove 14 whose rear end portion is a vertical surface is provided on the rear side of the chevron-shaped groove. This groove 14 serves as a stopper for backward movement of a spring plate 15, which will be described later. 15 forms a needle cutting tool 16 at the front end, and connects the main body surface to the lid body 1.
A wide spring plate provided in contact with the inner upper surface of 1.
The main body of this spring plate has its left and right sides as lid body side parts 1.
It is inserted inside guides 17, 17' protruding from 2, 12, and slides back and forth while being supported. 1
Reference numerals 8 and 18' denote legs that are gently curved downward on both left and right sides of the rear end of the spring plate 15, and the lengths of these legs are the same, but the tip of one leg 18 is The leg portion 18' comes into contact with and separates from one side plate 3 of the base body 1, and the tip of the other leg portion 18' comes into contact with and leaves a horizontal protrusion 10 provided on a part of one side of the needle cover body 5. . 19 are both legs 18 of the spring plate 15;
18' is a middle leg section which is shorter than these, and the upper surface of this middle leg section is provided with a chevron-shaped protrusion 2 of the same shape that engages with the chevron-shaped grooves 13, 13' on the lid body 11 side.
0, and a slightly upward protrusion 21 at the tip.
is provided and engages with the concave groove 14 on the lid body side. 22,
Reference numeral 22 denotes a tab piece that is cut and raised on a portion of both left and right sides of the spring plate 15 and bent outward so that its outermost end is along the side surface of the lid body 11. Slide this back and forth while placing your fingertips on both the left and right knobs. The structure of this knob piece may be provided by cutting out a part of the spring plate 15 as shown in FIG. 2, or as shown in FIGS. 7 to 9.
Separate materials may be wound around the outside of the spring plate 15 and provided as the knob pieces 22', 22'. In the case of this latter configuration, the spring plate 15 becomes thicker by the thickness of the knob pieces 22', 22', so a concave groove 23 is formed in the inner upper surface of the lid body 11 in the range where the knob pieces slide back and forth. Set it up. Reference numeral 24 denotes a protrusion provided at the front end of the inner upper surface of the lid 11, and this protrusion serves as a stopper for forward movement of the spring plate 15 against which the upper end of the needle cutting tool 16 comes into contact. The formation of this protruding portion 24 is as follows:
The material thickness of the front end portion of the lid body 11 may be increased. The distance between the needle cutting tool 16 and the protruding portion 24 is the same as the pitch distance between the two chevron grooves 13 and 13'. Further, the distance between the front end and the rear end of the groove 14 with which the projection 21 is engaged is also the same length as each of the above-mentioned distances.

The stapler of the present invention is used in the state shown in FIG. 3 and in the state shown in FIG. 5 when it is not in use and when it is in use.

First, the state shown in FIG. 5 is the normal state in which the stapler is used, and it can be used as is. That is, the needle cutting tool 13 is in a position where it touches the inside of the front wall 5' of the needle housing 5 and moves downward, and the tip of this needle cutting tool 13 is connected to the stapler on the needle droplet of the needle housing 5. It comes into contact with the first one. At this time, the chevron-shaped protrusion 20 of the intermediate portion 19 of the spring plate 15 engages with the rear chevron-shaped groove 13' on the lid body 11 side, and the protrusion 21 at the tip of the middle leg portion 19 engages with the rear end of the concave groove 14. It comes into contact with and stops. Also, at this time, the tip of one leg 18 of the spring plate 15 is located on one side plate 3 of the base body 1, and the tip of the other leg 18' is located horizontally on one side of the needle housing 5. Projection 10
It is located above.

Next, when carrying or storing the stapler without using it, the lid 11 may be pulled up slightly as shown in FIG.
After separating the tip from the upper end of the front wall 5' of the needle case 5, hold the tabs 22, 22 protruding on both left and right sides of the front side of the lid 11 with both fingertips. Operates forward. Then, the chevron-shaped protrusion 20 of the middle leg portion 19 of the spring plate 15 comes out of the rear chevron-shaped groove 13' and moves to and engages with the front chevron-shaped groove 13. At the same time, the needle cutting tool 16 comes into contact with the protrusion 24, so the spring plate 15 stops at this position. In this state, when the lid 11 is moved down, the needle cutting tool 16 is lowered and positioned in front of the front wall 5' of the needle cover 5, as shown in FIG. With this, the lid body 1
1 is prevented from moving backwards and remains in a stopped state, and both legs 18, 1 at the rear end of the spring plate 15 are prevented from moving backward.
The tips of the caps 8' are completely separated from the positions where they were in contact with the upper surfaces of the horizontal protrusions 10 on one side plate 3 of the base body 1 and the horizontal protrusion 10 on one side of the needle cover body 5, so that the lid body 11
The spring force exerted by the spring plate 15 is released. In this way, the lid body 11 is held in a vertically parallel state between the needle housing body 5 and the base body 1 as shown in FIG. Just carry a stapler in your pocket or pencil case.

When changing the stapler from the unused state to the used state, move the lid 11 slightly upward as shown in FIG. 4 or 5, and then pinch the left and right knobs 22 with both fingertips. All you have to do is move backwards. This effect is as described above.

3. Effects of the invention As described above, the present invention has the side plates 3, 3 erected on both left and right sides near the base end of the base body 1, and the needle cover body 5 on the base body and the pivot 4 at the base end thereof. A cover body 11 is provided above the base body and the needle case body, the base end of which is pivoted to the pivot, and a needle cutting tool 16 is attached to the front end of the cover body on the inner upper surface thereof. A knob piece 2 in which the formed spring plate 15 is provided on the left and right sides of the lid body.
2, the legs 1 are provided so as to be able to slide back and forth, and are curved downward on both left and right sides of the rear end of the spring plate.
8 and 18', and one leg 1
8 on one side plate of the base body, and the tip of the other leg 18' on a horizontal protrusion provided on a part of the needle housing, respectively, to move the spring plate forward. At times, both the legs at the rear end are released from the one side plate and the horizontal protrusion 10, so that the front part of the lid body and the front part of the base body are close to each other in a parallel position. The firing function of the firing plate can be activated or released by sliding the firing plate forward or backward, and the sliding operation can be done with two hands without opening the lid. Since this can be done with just a slide of the fingertip, it is now possible to easily switch between using and not using the stapler, and when not in use, the lid body can be placed in a flat state horizontally parallel to the base body. Since the stapler is held in place, the entire stapler becomes thinner, making it easier to store and carry in a pencil case or pocket, and also prevents the lid from being pressed and the tool bit accidentally cutting off the staples. This prevents the occurrence of staple clogging, thereby making it possible to use a stapler using ordinary needles smoothly and quickly, which has a great practical effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the main parts as seen from the bottom, FIG. 2 is a sectional view taken along line A-A, and FIG. 3 is a side sectional view of the whole when not in use. , 4th
The figure is a side sectional view of the whole at intermediate time, Figure 5 is a side sectional view of the whole when in use, Figure 6 is a plan sectional view of the main parts, and Figure 7 is a side sectional view of the whole when in use.
The figure is a perspective view of the main part of another example as seen from the bottom, Figure 8 is a cross-sectional view taken along the line B-B in Figure 7, and Figure 9 is a cross-sectional view along line C-C in Figure 7.
It is a sectional view of a line.

Claims (1)

[Scope of utility model registration request] Side plates are erected on both left and right sides near the proximal end of the base body, a needle case body is installed on the base body with a pivot at the base end, and the needle case body is installed on the base body and the upper part of the needle case body. A lid body whose base end is pivoted on the pivot is provided, and a spring plate with a needle cutting tool formed at the front end is attached to the inner upper surface of the lid body and can be moved back and forth by knobs provided on the left and right sides of the lid body. The spring plate is provided so as to be able to slide, and downwardly curved legs are formed on both left and right sides of the rear end of the spring plate, and the tip of one of the legs is placed on one side plate of the base body, and the other leg is placed on the side plate of the base body. The tips of the sections are brought into contact with and separated from each other on horizontal protrusions provided on a part of the needle housing, and when the spring plate moves forward, both legs at the rear end are released from the one side plate and the horizontal protrusions. A stapler characterized in that the front part of the lid body and the front part of the base body are arranged in parallel and close to each other.