JPH0129039Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to the structure of a trimming cutter device for cutting photographic paper into predetermined dimensions.

(b) Background of the technology The conventional methods for cutting photographic paper into predetermined dimensions include sequentially cutting the four corners of the photographic paper using a manual cutter, and a tool rest equipped with rectangular, square, etc. cutting blades. One possible method is to place the photographic paper underneath and cut all four corners at once using the pressure of a tool post, but in order to cut a large number of pieces of photographic paper of the same size in a short period of time, cutting the latter four corners at once is possible. The method is valid.

(c) Conventional technology and problems In conventional trimming cutter devices, the mechanism for pressing the turret is a so-called eccentric type, so it is necessary to apply a considerable pressing force to the lever. I had no choice but to make the cutter stand larger. Furthermore, since the tool post is fixedly attached to the cutting stand body with a hinge, the cutting edge is not pressed evenly, resulting in uneven cutting of the photographic paper, resulting in a disadvantage in that the durability of the cutting edge is impaired.

(d) Purpose of the invention Therefore, the present invention provides a small trimming cutter device that requires less pressing force on the lever, does not cause uneven cutting at the four corners of photographic paper, and has a highly durable blade edge. The purpose is to

(e) Structure of the invention The invention consists of a transparent or translucent tool rest with a protruding cutting blade planted on the back side and a hinge for insertion at the rear end, and a blade rest plate, an intermediate seat, and the rear end. A cutter mechanism is mounted on a slide base on which a cutting base main body is attached with a detachable member for removably locking the hinge of the tool post, and a lever with a grip seat is attached to one end. A cam mounting base has a handle shaft with a cam attached to the other end rotatably mounted in a predetermined direction, and an adjuster seat that has a mounting hole for a guide ring approximately in the center and regulates the rotational direction of the handle shaft. an L-shaped seat on which the cam mounting base is fixed, a push rod containing a bearing is mounted along the guide rod, a guide ring with a flange is mounted in the mounting hole of the L-shaped seat, and an L-shaped seat. It consists of a pressure plate attached to a spring-equipped pressure plate suspension screw inserted into a screw hole in the seat, and a cutter base having a sliding groove and a stopper for the cutter mechanism and to which the L-shaped seat is fixed. The press mechanism includes a push rod that responds to the rotation of the cam to push down the pressure plate, which normally contacts the flange of the guide ring, against a spring attached to the pressure plate hanging screw, so as to press the turret of the cutter mechanism into contact with the pressure plate. The structure is as follows.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on FIGS. 1 to 3.

FIG. 1 is an overall external view of the trimming cutter device, FIG. 2 is an exploded view of the pressing mechanism, and FIG. 3 is an exploded view of the cutter mechanism.

Reference numeral 1 designates a cutter stand, which has a sliding groove 2 for a slide stand 32 of a cutter mechanism (to be described later) carved in the longitudinal direction of the approximate center, and an L-shaped seat with legs 5 having a height that allows the cutter mechanism to slide at the rear end. 3 is fixed with screw 4 etc. Then, a mounting hole 7 is bored in the approximate center of the L-shaped seat 3, a guide ring 6 with a flange 8 stretched on the lower end is mounted, and screws 9 are inserted from the outside of the flange 8.
etc. to fix it.

A guide groove 10 is cut into the guide ring 6,
A push rod 11 is slidably accommodated along the guide groove 10. A bearing 13 is suspended within the push rod 11 by a shaft 12, and a portion of the outer periphery of the bearing 13 protrudes from the guide groove 10 to restrict its position. Reference numeral 14 denotes a pressure plate screwed onto the pressure plate suspension screw 15 with a spring 17 inserted into the screw hole 16 of the L-shaped seat 3, and is normally in contact with the flange 8 of the guide ring 6, and the push rod 11 is connected to the handle shaft described later. When the inside of the guide ring 6 is lowered by the rotation of the cam 22 of 21,
It responds against the spring 17. Reference numeral 18 denotes a U-shaped cam mounting base having a support frame 19, which is fixed to the L-shaped seat 3 with cam mounting screws 20.

21 attaches a cam 22 to one end with a screw 23,
It is a handle shaft to which a lever 24 with a grip seat 25 attached to the other end is screwed, and is attached to a camshaft 27 suspended from the cam mount 18. The camshaft 27 is attached to the support frame 19 of the cam mount 18.
It is inserted into a bearing 28 that fits into a bearing mounting hole 26 drilled in the. Reference numeral 29 is an E-ring for preventing removal, reference numeral 30 is an adjuster seat for regulating the contact of the lever 24, and reference numeral 31 is a stopper for the slide base of the cutter mechanism.The pressing mechanism is assembled with the above-mentioned members.

Next, the cutter mechanism will be explained.

Reference numeral 32 denotes a slide table that slides in the sliding groove 2 carved in the cutter table 1. The cutter table main body 33, intermediate seat 34, and blade contact plate 35 are laminated, and the screw 3
Fix it in 6. Reference numeral 38 denotes a hinge detachment spring which is fixed with a screw 40 to the rear end of the cutting table main body 33 via an intermediate plate 39, and an insertion hinge 43 fixed with a screw 42 to the rear end of a tool rest 41, which will be described later, is clamped. Tool rest 41
The cutting blade 44 is made of transparent or semi-transparent resin material.
A hole 45 for inserting a finger is made approximately in the center thereof, and a center line 47 for positioning the photographic paper is carved. 46 is a handle.

A method of using the trimming cutter device having the above configuration will be explained.

Before use, the cutter mechanism is housed in a sliding groove 2 carved in the cutter base 1 of the pressing mechanism, and is locked to a stopper 31 on the left side, and the photographic paper to be cut is placed on the blade abutment plate 35. After positioning using the center line 47 engraved on the tool rest 41, the tool rest 41 is placed on the tool rest 41 and moved to just below the pressing mechanism. In this case, positioning is performed using a stopper provided on the right side of the cutter stand 1. Next lever 2
When the cam 22 rotates and pushes down the push rod 11 via the bearing 13 that is in contact, the pressure plate 14 responds to this and presses the turret seat 41 downward. The surface is pressed substantially uniformly, and the four corners of the photographic paper on the knife contact plate 35 are simultaneously cut. The cut photographic paper is often attached to the tool rest 41, and at this time the photographic paper is removed by sticking out the finger from the finger insertion hole 45.

(g) Effects of the invention According to the invention described above, stress can be transmitted extremely easily by the cam, and photographic paper can be cut with a small force, so there is no need to extend the cutter stand forward. In addition, the tool rest is supported by an insert-type hinge, and the stress received during pressure contact is almost uniformly transmitted to the blade contact plate, which significantly improves the durability of the cutting blade. or,
The removable hinge allows for easy replacement of the cutting blade, and the finger insertion hole provided approximately in the center of the turret makes it easy to remove photographic paper after cutting. Furthermore, by marking the center line, positioning can be easily performed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 shows an overall external view, FIG. 2 shows an exploded view of the pressing mechanism, and FIG. 3 shows an exploded view of the cutter mechanism. 1... Cutter stand, 3... L-shaped seat, 6... Guide ring, 11... Push bar, 14... Pressure plate, 22...
Cam, 32...Slide base, 33...Cut base body,
41...turret, 44...cutting blade.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A transparent or translucent tool rest with a protruding cutting blade planted on the back side and a hinge for insertion at the rear end, with a tool rest plate, an intermediate seat, and a rear end. A cutter mechanism that is attached to a slide base on which a cutting base body is attached to the end thereof with a detachable member that detachably locks the hinge of the tool post, and a lever with a grip seat is attached to one end. and a cam mounting base on which a handle shaft with a cam attached to the other end is rotatably mounted in a predetermined direction, and an adjuster seat that has a mounting hole for a guide ring approximately in the center and regulates the direction of rotation of the handle shaft. Installed,
An L-shaped seat on which the cam mounting base is fixed, a push rod containing a bearing is mounted along a guide groove, a guide ring with a flange is mounted in a mounting hole of the L-shaped seat, and a screw on the L-shaped seat. It consists of a pressure plate attached to a pressure plate suspension screw with a spring inserted through a hole, and a cutter base having a sliding groove and a stopper for the cutter mechanism, and on which the L-shaped seat is fixed, and the rotation of the cam of the handle shaft A trimming cutter having a pressing mechanism that presses down the pressure plate, which is normally in contact with the flange of the guide ring, against a spring attached to the pressure plate hanging screw, using a push rod that responds to the pressure, so as to press the tool rest of the cutter mechanism into contact with the pressure plate. Device. (2) The trimming cutter device according to claim 1, wherein a hole for inserting a finger is formed approximately in the center of the turret of the cutter mechanism. (3) The trimming cutter device according to claim 1, wherein a center line for positioning is carved approximately in the center of the turret of the cutter mechanism.