JP2003103496A - Cutter for synthetic resin pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter for a synthetic resin pipe, capable of cutting a thin wall synthetic resin pipe by performing the plowing, pulling and pushing action with one lever rod while it is common knowledge that in an action of cutting a material with a blade, it can be lightly cut by pulling and plowing. SOLUTION: In this cutter, in cutting the synthetic resin pipe, a blade body 1 is pulled and pushed, and plown with pressure and pushing of a rack 6, and the racks 6A and 6B are alternately moved to exhibit a plowing effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a synthetic resin pipe cutting machine for cutting a synthetic resin pipe.

[0002]

2. Description of the Related Art Conventionally, a synthetic resin pipe cutting machine has a structure in which scissors-shaped blades are rotated around a fulcrum shaft to cut scissors, and an application for registration of a utility model in 1988, application No. 91257 and a utility model registration in 1988. There was a structure having a linearly moving cutting blade of Japanese Patent No. 123868.

[0003]

Problems to be Solved by the Invention Since the synthetic resin pipe cutting machines of other companies' products are cut with scissors, the cutting of thin synthetic resin pipes has the drawback of being lazy or cracked. 1988 Utility model registration application 9125
No. 7 and utility model registration application No. 123868 in 1988, we applied for development of a structure using a linearly moving cutting blade, but due to the angled cutting blade, the first cut that is a drawback of conventional line contact blades I was able to completely resolve the damage and damage,
The angled receding blade has a large contact surface with respect to the synthetic resin pipe during the final cutting of the synthetic resin pipe, causing a problem of requiring careful cutting. The present invention has been implemented for the purpose of providing the above-mentioned drawbacks of the conventional structure with a simple structure at a low cost.

[0004]

In order to solve this problem, a swinging, pulling, or pushing structure is added to any blade to make up for the shortcomings of the above-mentioned application and to provide a simple structure for quick and easy cutting. A synthetic resin pipe (a) held by a holding portion (2) for holding a synthetic resin pipe (a) which is an object to be cut.
The blade body (1) which moves back and forth in the lateral direction above and around the circumference is provided with a drive means by a lever rod (10) on the main body (3), and on the other hand, a rack (5) for vertically pressing the blade body (1). The pinion (7) is engaged with the holding plate (8) standing on the main body (3) and the holding plate (8), and the pinion (7) is provided with a non-return pawl and, if necessary, the rack (6). ) Can move up and down freely. The ratchet (9) also has a handle for opening the feed claw. The ratchet (9) has a projecting piece, and the projecting piece (11) provided on the lever bar (10) and the projecting piece of the ratchet (9) are axially supported so as to interlock with each other, and the blade body (1) A roller provided below the rack (6) pressurizes a predetermined portion of the back of the blade (1) at the same time as the back and forth movement of the blade. The means in claim 2 is a rack (6) in which a blade (1) provided above a synthetic resin pipe (a) held by a holding portion (2) holding a synthetic resin pipe (a) which is an object to be cut. A and a rack (6) B are swingably supported at the lower ends of the rack (6) A and the rack (6) B.
The drive means of a ratchet (9) A and a ratchet (9) B are provided at predetermined portions of B, respectively.
The pinion is attached to one of the B's, and each pinion is provided with a non-return device. When the lever bar (10) is moved up and down, the racks alternately move downward and exert a hiccup effect. The holding portion (2) for holding the synthetic resin pipe (a) has a structure capable of accommodating the size of the synthetic resin pipe. In the third aspect, the rack (6) having the blade body (1) fixed to the rear portion of the synthetic resin pipe (a) held by the holding portion (2) holding the synthetic resin pipe (a) that is the object to be cut is The drive means (A) is engaged with the pinion (7), and the drive means (A) is a guide (19) included so that the rack (6) can move forward, and the swinging part (14) is provided at an appropriate position on the main body (5). The holding portion (2) is pivotally supported at an appropriate position on an extension line thereof, and the space in which the blade body (1) is sandwiched by the rack (6) is extended to the rear portion, and the rack guide (19) is provided at the appropriate rear portion. The upper end of the rack enclosed by the standing rack guide has a guide piece (15) that can slide on the tooth surface of the rack (6).
To the tooth surface of the cavity of the rack (6), the pinion (8) is meshed with the tooth surface of the rack, the rod (17) is fixed, and the rod (16) is axially supported by the handle of the drive means (A). ), Each tip is swingably supported.
If the rack guide (19) is fixed and the rod (16) is removed, the rack (6) can be operated only in a straight line and can be used in a machine for cutting thick synthetic resin pipes. In Claim 4, a sandwiching plate (8) standing upright in a proper position on the main body (3), a retaining rod (10) in front of the sandwiching plate (8), a fulcrum at a proper place is sandwiched by a sandwiching shaft, and it extends to the tip. The movable body, the movable body, the blade body (1) are pivotally mounted, and the back portion of the blade body (1) is curved in an anti-mountain shape. The rack (6) is provided with a guide part (A) for guiding the (6).
A guide roller is axially attached to the tip of the holding plate (8), a ratchet (9) is provided behind the holding plate (8), and the handle extends toward the front of the ratchet (9). ) Is attached to a flat bar pivotally attached to the () to cut the synthetic resin pipe (a) held by the holding portion (2) that holds the synthetic resin pipe (a) that is the object to be cut. .

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described with reference to the drawings. The blade body (1) of FIG. 1 of the present invention is an upper surface circle of a sandwiching plate (8) standing upright, a synthetic resin pipe (a) held in a holding portion (2) through a gap of the sandwiching plate (8). Provided so as to be positioned at a right angle to the synthetic resin pipe (a) at the periphery,
It is composed of an upright holding plate (8) and a driving means provided at an appropriate position of the holding plate (8). FIG. 2 shows a rack (6) rack A and a rack (6) B, whose tooth surfaces are opposed to each other, pivotably supported on the lower part of each of the rack (6) rack A and the rack (6) B.
Drive means that meshes with each other. FIG. 3 shows that the blade body (1) is fixed to the rack (6) provided horizontally on the main body (5), and the rack guide (1) held by the rack (6) is inserted therethrough. 19) The structure is such that the vertical movement of the rack included in the rack guide (13) provided at the rear part of the rack body (1) allows the blade body (1) to move up and down to advance and cut the synthetic resin pipe.

[0006]

INDUSTRIAL APPLICABILITY In any of the inventions, any one of pressing, pulling, and hiccuping action is applied in addition to the pressure of the blade, so that it is possible to cut a thin and sticky synthetic resin pipe which is hard to cut. Especially with thin synthetic resin pipes, it was possible that the first cutting was impossible. Particularly, it is easy to manufacture a manual type synthetic resin pipe cutting machine with reference to claims 3 and 4, and therefore, the manual type synthetic resin pipe cutting tool and the electric type machine shown in FIG. This is within the scope of application.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, which is capable of pushing and pressing when cutting a synthetic resin pipe.

FIG. 2 is a front view of an embodiment of the present invention in which a rack facing a synthetic resin pipe cutting machine is provided.

FIG. 3 is a front view of the synthetic resin pipe cutting machine according to the embodiment of the present invention provided with a swinging and advancing mechanism.

FIG. 4 is a front view of the synthetic resin pipe cutting machine according to the embodiment of the present invention in which a cam is provided on the back of the blade.

FIG. 5 is a front view of the manual type synthetic resin pipe cutting machine according to the embodiment of the present invention.

[Explanation of symbols]   [Figure 1] [Figure 3] [Figure 5]   B synthetic resin pipe A drive means A drive means   1 blade 1 blade 1 blade   2 Holding part 4 Rack non-returning 4 Rack non-reversing   3 main body 5 main body 5 main body   4 pinion non-return pawls 6 racks 6 racks   5 rack 7 pinion 7 pinion   6 pinion 8 pinion 8 pinion   7 Clamping board 9 Ratchet 9 Ratchet   8 Clamp plate 13 Rack guide 13 Rack guide   9 Ratchet 14 Swing part 14 Swing part 10 Lever bar 15 Guide piece 15 Guide part 11 Projection piece 16 Rod 16 Rod 12 rod 17 rod 17 rod                             18 handle 18 handle   [Fig.2] 19 Rack guide 19 Spring   1 blade   2 Holding part [Fig. 4]   3 body 1 blade   6 A rack 2 holding part   6 B rack 3 main unit   7 A pinion non-return 4 Rack non-return claw   7 B pinion check 5 Rack check claw handle   9 A Ratchet 6 Rack   9 B ratchet 8 clamping plate 10 Lever sticks 8 Holding plate                             9 pinion                           10 Lever stick                           11 Feed claw                             A guide section

Claims (4)

[Claims] 1. A blade body that laterally moves back and forth and up and down above the circumference of a synthetic resin pipe (a) held by a holding portion (2) that holds a synthetic resin pipe (a) that is an object to be cut. In (1), a sandwiching plate is erected at an appropriate position on the main body (3) and a lever bar (1
0) is a pivotal support, the blade body (1) is connected, and the rack (5) that vertically presses the blade body (1) is a holding plate (7) that is erected on the main body (3) by engaging the pinion (6). Mounted on the sandwich plate (8), equipped with the rack non-return pawl (4), the ratchet (9)
Is provided with a neutral mechanism, and a claw having an appropriate handle is attached to the lever bar (10) so that the projecting piece (11) and the lever bar (10) are linked by a rod (12). At the same time as the blade body (1) moves back and forth, a roller provided below the rack (5) pressurizes a predetermined portion of the back of the blade body (1), and the blade body (1) pulls, pushes, and scoops. And a synthetic resin pipe cutting machine. 2. The rack (6) A and the rack (6) B are provided at predetermined intervals, and one of them is pivotally supported on the main body (3) to stand upright, the rack (6) A and the rack (6). A blade (1) is pivotally supported at each tip of B, a rack (6) A, a rack (6)
The ratchet (9) A and the ratchet (9) B are attached to one of the pinions of the driving means provided at appropriate places above the B, and the non-return pawls are also provided. The ratchet (9) A and the ratchet (9) B are It is characterized in that, by the action of the rod connected to the lever rod (10), the synthetic resin pipe (a) held by the holding portion (2) is alternately squeezed while being squeezed by swinging the lever rod (10). The synthetic resin pipe cutting machine according to claim 1. 3. A synthetic resin pipe cutting machine for cutting a synthetic resin pipe by fixing a cutting blade to a lower portion of the rack and advancing the rack straightly, and a handle portion (18) which is an extension of a driving means (A).
The rod (16) pivotally supported on the rod (17) is pivotally supported on the rod (17), and on the other hand, the rack of the swinging means and the pinion (8) are engaged so that they can be moved up and down, and they are placed at appropriate positions on the main body (5). The rack guide (19) is provided so as to be erected so as to allow the rack (6) to move forward. The space in which the blade body (1) is sandwiched in the rack (6) is extended to the rear portion and the rack guide (19) is provided. ) The upper end of the rack, which is enclosed by the rack guide (13) standing upright in the rear, is provided with a guide piece (15) that can slide the tooth surface of the rack (6).
The pinion (8) is meshed with the rack tooth surface that moves up and down through the space of the rod, and the rod (17) is fixed.
One of the rods (16) is pivotally supported at an appropriate position of the handle portion of the drive means (A), and the tips of the rod (16) and the lot (17) are pivotally supported so that the rod (16) is supported. ) And the rod 17), the blade body (1) moves forward while swinging about the swinging portion (14) as a fulcrum.
And the synthetic resin pipe cutting machine according to claim 2. 4. A holding plate (8) standing upright in a proper position on the main body (3), the holding plate (8) has a fulcrum in the front of the lever rod (10), and a fulcrum at a suitable position is held by a holding shaft, and is advanced to the tip. A blade body (1) that moves and hiccups is mounted on a shaft, and the back portion of the blade body (1) is curved in an anti-mountain shape, and a holding plate (8) is provided in a predetermined portion of the holding plate (8). , A guide portion (A) for guiding the rack (6) is provided, a guide roller is pivotally attached to the tip of the rack (6), and a pinion plate (8) is provided behind the pinch plate (8). The pinion (9) has a handle extending forward, and a holder (2) which holds a synthetic resin pipe (a) which is an object to be cut and which is axially attached to a flat bar axially attached to a lever rod (10). )
The synthetic resin pipe cutting machine according to any one of claims 1, 2 and 3, wherein the synthetic resin pipe (a) held by is cut.