JPH058075Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a paper punch for punching holes when binding forms and various papers in offices, schools, homes, etc.

[Conventional technology and its problems]

In the past, some paper punches of this type were equipped with a locking mechanism that could keep the pressing arm closed when not in use (for example, the paper punch from 1983-
(See No. 12391). However, it is difficult and inconvenient to switch the lock mechanism using only one hand.

Therefore, an object of the present invention is to solve these problems and provide a paper punch with an excellent design.

[Means to achieve the purpose]

In the paper punch of the present invention, the overall shape of the punch base and the overall shape of the press plate pivotally supported on the punch base are each shaped like a rounded triangular rice ball, and the press plate is shaped like a rounded triangular rice ball. A shallow approximately triangular recess is formed on the top surface of the board, and a window portion for viewing the center mark of the perforated paper is provided in the recess, and a approximately triangular shaped recess is provided within the recess for opening and closing the window. A locking mechanism is provided with a sliding lid plate that can be moved back and forth, and that operates in conjunction with the back and forth movement of the sliding lid plate and presses the pressing plate against the punch base to maintain the closed state. is interposed between the punch base and the press plate, and is configured such that in the closed state, the sliding cover plate closes the window, and when the locking mechanism is released, the window opens. be.

[Effect]

The normal method of using a paper punch is to mark the center of the paper to be punched, such as a crease, and then punch holes equidistantly from the center to the left and right. If you slide it, the window will appear and you can see it. As the slide cover plate slides, a lock mechanism is operated in conjunction with the movement of the slide cover plate, and when the paper punch is used, the window opens and the center mark can be confirmed. On the other hand, when not in use, by pressing the press plate with one hand and pressing it against the punch base side, and sliding the slide cover plate with that one hand, the above window closes and the appearance becomes simple, and this slide As the cover plate moves, the lock mechanism switches to the locked state, and the compact closed state in which the press plate is closed relative to the punch base can be maintained. Therefore, you can stand it in the corner of your desk,
You can put it in your desk drawer, or put it in a box or bag. Conversely, when the device is not to be used, the locking mechanism is automatically unlocked by operating the slide plate to expose the window.

〔Example〕

Hereinafter, the present invention will be explained based on the illustrated embodiments.

In FIGS. 1 to 8, 1 is a punch base, and 2 is a press plate pivotally supported on the punch base 1 via a shaft 3 so as to be vertically swingable.

1 to 4 show the paper punch in use, and FIGS. 5 to 7 show the paper punch in non-use.

The pressing plate 2 has a horizontally elongated window 5 (or a transparent plastic plate or the like is covered with it) for viewing a central mark formed by a crease or the like on one side of the perforated paper 4 (see Fig. 2). The overall shape of the press plate 2 is a triangular shape with rounded corners (rounded), and the peripheral edge of the upper surface 6 is also rounded with a sufficiently large radius. That is, the overall shape of the punch base 1 and the overall shape of the press plate 2 are each formed into a rounded triangular rice ball shape. A large, generally triangular shallow recess 7 is formed in the upper surface 6 of the pressing plate 2, and a window 5 is provided in the recess 7.
Inside this recess 7, a substantially triangular slide cover plate 8 smaller than the substantially triangular shape is attached so as to be movable back and forth. A plurality of dimples 9 are recessed on the upper surface of the slide lid plate 8 to prevent fingers from slipping. Of course, other small irregularities may be formed freely. In use, the slide cover plate 8 moves to the triangular rear apex 10 of the recess 7 as shown by the imaginary lines in FIGS. appears and the window portion 5 is in an open state. On the other hand, when the slide cover plate 8 is not in use, the solid line in FIG. 5 and the lines in FIGS.
As shown in the figure, the window portion 5 is covered by sliding the finger in the direction of arrow A (see FIG. 5).

Therefore, the protrusion 1 is placed on the back side of the slide cover plate 8.
2 are arranged in series, and a lock piece 13 which also serves as a mounting piece is fixed with a screw or the like. This lock piece 13 has a rounded part 13a at the lower end of the front side, and is connected with an elastically deformable locking protrusion 14, which is inserted into positioning notch grooves 15, 15 provided on the back surface of the pressing plate 2. The locking protrusion 14 selectively locks the window portion 5 to maintain both the open and closed states.

The punch base 1 is composed of a main body 1a and a cover 1b for receiving the main body 1a from below, and the main body 1a is provided with a transversely vertical L-shaped locking portion 16. As shown in FIG. 6, this locking portion 16 and the lock piece 13 create a lock mechanism R that maintains the closed state of the press plate 2 with respect to the punch base 1.
is configured. That is, the lock mechanism R is interposed between the punch base 1 and the press plate 2.

In the closed state (unused state), the slide cover plate 8 closes the window portion 5 and locks the lock mechanism R.
The window 5 is configured to open when it is released and put into use (see Fig. 1).

Therefore, as is clear from a comparison between FIG. 1 and FIG. When the punch base 1 approaches the punch base 1, the closed state can be maintained like a closed shellfish.

Note that a perforated empty chamber 17 for storing paper scraps is formed between the main body 1a and the cover 1b. Furthermore, in Figures 1 and 8, 18, 18
is a drill, and the press plate 2 is connected to the support pin bar 19.
mounted on. The main body 1a of the punch base 1 includes:
Holes 20, 20 through which the cones 18, 18 go in and out are provided. Also, 21 is a scissor spring,
It elastically urges the press plate 2 in the direction of opening.

Next, FIGS. 9 to 11 show another embodiment in which a slide cover plate 8 is provided in the upper surface recess 7 of the press plate 2 so as to be able to reciprocate in the direction of the arrow. This is similar to the previous embodiment in that the portions 8 do not protrude and are formed on substantially the same surface.

However, the lock mechanism R consists of a locking part 16 provided on the punch base 1 and a lock arm 21 provided on the press plate 2 and detachable from the locking part 16. It swings around the shaft 22 as shown by arrows B and C.

The lock arm 21 and the slide cover plate 8 are interlocked and connected as follows. That is, the swinging piece 23 is integrally connected to the boss portion of the lock arm 21 and pivotally connected to a connecting member 25 by a pin 24, and the other end of the connecting member 25 is connected to the slide cover plate 8 by a shaft 26. It is pivotally connected to the protrusion 12.

Then, as shown in FIG. 10, when the window portion 5 is opened by sliding the slide cover plate 8 in the direction of the arrow E (rearward), the Through the connection mechanism, the lock arm 21 of the lock mechanism R swings in the direction of arrow B and disengages from the locking portion 16, and the press plate 2 freely approaches and separates from the punch base 1 to perform drilling. I can do it.
Furthermore, if the window portion 5 is closed by sliding the slide cover plate 8 in the opposite A direction (forward direction) as shown in FIG. 11 while pressing the press plate 2, the lock mechanism R is The lock arm 21 swings in the direction of arrow C and locks into the locking portion 16, resulting in a closed state as shown in FIG.

In addition, as other embodiments (not shown),
The same operation can be obtained by directly protruding the pin 24 shown in FIGS. 10 and 11 downward from the slide cover plate 8 and inserting it into the long hole provided in the swinging piece 23. In addition, a pinion gear is connected to the boss part of the lock arm 21, and a rack member is attached to the slide cover plate 8, and the meshing of the rack and pinion allows
It is also possible to convert the linear reciprocating motion into a swinging motion to engage and disengage the lock mechanism R.

[Effects of Examples]

If the lock piece 13 is provided with a rounded part 13a as shown in FIG. The slide cover plate 8 is restored in the E direction.

[Effect of idea]

Due to the above-described configuration, the present invention achieves significant effects as described below.

By moving the slide cover plate 8 back and forth with one hand, the locking mechanism R can be easily and quickly locked and released. In particular, when the lock mechanism R is locked and the press plate 2 is closed relative to the punch base 1, it is convenient because the press plate 2 can be pressed and the slide cover plate 8 can be slid with only one hand. .

In the closed state, that is, when the paper punch is not in use, the press plate 2 and the punch base 1 are in an overlapping, compact state, and the slide cover plate 8 is in a compact state.
The window portion 5 is closed, resulting in a simple appearance.

Furthermore, when the lock mechanism R is released and the machine is ready for use, the window 5 opens automatically, allowing the operator to work while checking the center mark on the paper to be punched, making the machine extremely user-friendly.

The overall shape of the punch base 1 and press plate 2 is
Each one is shaped like a rounded triangular rice ball, so it looks great when placed on a desk, especially when closed (not in use), and is easy to put in and take out of a bag or box, and is also portable. It's convenient. Moreover, it is also possible to stand the punch base 1 and the press plate 2 on a desk with their front sides facing down.
It doesn't take up much space on your desk, is functional, and has an excellent design.

[Brief explanation of the drawing]

Fig. 1 is an embodiment of the present invention, and is a cross-sectional side view showing the state of use, Fig. 2 is a side view, Fig. 3 is a front view, Fig. 4 is a plan view of main parts, and Fig. 5 is an explanation of the operation. Figure 6 is a cross-sectional side view showing the state of non-use.
Fig. 7 is a side view, Fig. 8 is a sectional front view, Fig. 9 is a sectional side view of another embodiment, Fig. 10 is a simplified diagram of the used state, and Fig. 11 is a simplified diagram of the unused state. . R...Lock mechanism, 1...Punch base, 2...
Pressing plate, 5...Window section, 6...Top surface, 8...Sliding lid plate.

Claims (1)

[Claims for Utility Model Registration] The overall shape of the punch base 1 and the overall shape of the press plate 2 pivotably supported on the punch base 1,
Each of them is formed into a rounded triangular rice ball shape, and a shallow approximately triangular recess 7 is formed on the upper surface 6 of the pressing plate 2.
A window 5 is provided in the recess 7 for viewing the center mark of the perforated paper, and a substantially triangular sliding cover plate 8 is provided in the recess 7 to open and close the window 5. A lock mechanism R is provided so as to be movable back and forth, and which operates in conjunction with the back and forth movement of the slide cover plate 8 and presses the press plate 2 against the punch base 1 to maintain the closed state. , is interposed between the punch base 1 and the press plate 2, and in the closed state, the slide cover plate 8 is connected to the window portion 5.
A paper punch characterized in that the window portion 5 is configured to open when the lock mechanism R is closed and the lock mechanism R is released.