GB2328400A

GB2328400A - Saw blade storage

Info

Publication number: GB2328400A
Application number: GB9717694A
Authority: GB
Inventors: Ruey-Zon Chen
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-22
Filing date: 1997-08-22
Publication date: 1999-02-24
Also published as: GB9717694D0; CA2214472A1

Abstract

A reciprocating sawing machine includes a storage cabinet in its lower portion for spare blades 3 and includes a mounting clip for a wrench 6 or 7. As shown these features are located on the inner face of a removable panel 5. The saw includes blade carrying swinging arms 26,27 within a "U" shaped housing which also encloses the motor 42 with an eccentric drive 43 to the lower arm.

Description

COPING SAW The present invention relates to a coping saw.

Existing coping saws are used to cut designed patterns which feature a plurality of curves and contours. Each of those patterns or even wooden moulds for casting can be readily cut be a skilled operator with an existing coping saw. The coping machine is indispensable to the industry.

However, in the existing coping saw, the driving motor is disposed externally of the configuring frame of the coping saw and when the motor is rotated, the blade connected thereof can be driven for an oscillating motion. Since the driving motor is disposed externally without any protecting cover, as a result, the driving motor will be covered with the cutting debris after a period of usage. Not only will the heat dissipation of the driving motor be affected, but also the service life of the driving motor will be shortened because debris may enter the housing of the driving motor.

In this case, dust explosion can occur. Because the output shaft of the driving motor extends from outside to the inner portion of the configuring frame, the inner space of the configuring frame of the coping saw becomes somewhat narrow. As a result, it is impossible to mount a storing cabinet to an existing coping saw. Consequently, tools such as box wrenches, Tshaped wrenches and spare blades tend to be scattered around or lost.

It is the object of this invention to provide a coping saw in which the components can be readily and conveniently assembled. On the other hand, the service life to the motor can be prolonged while the storing cabinet provided thereof can be used to store those needed tooling and back-up blades. The machining quality can be therefore upgraded while the work can be readily performed.

The present invention therefore provides a coping saw in which the lower portion thereof is provided with a storage cabinet, an inner wall of said storing cabinet including at least one of elongate receptacle for storing spare blades, and/or at least one resilient clips in which a wrench can be fixedly disposed therein.

In preferred embodiments the storing cabinet comprises a basement with which a left and right U-shape brackets can be locked side-by-side thereon. Each of the left and right brackets is provided with a shaft hole respectively at their side wall. Each of the shaft holes is disposed with a bearing set with which an upper and lower swinging arms are rotationally mounted thereof. A blade is bridged between the free ends of the upper and lower swinging arms. The opposite ends of those upper and lower swinging arms are connected with a linkage. The lower portion of the right bracket is connected with a front sectional housing in which a receiving space is defined for mounting an in-line motor therein. The output shaft of the in-line motor is pivotally mounted with an eccentric linkage which is interconnected to the lower swinging arm by means of a locking rod. Wherein when the motor is rotated the blade will be oscillated to cut a workpiece by those repetitively moved upper and lower swinging arms. The lower portion of the left bracket is provided with a plurality of threaded holes via the basement with which a storing cabinet is fixedly attached by a plurality of locking bolts with the lower horizontal rod having a plurality of dowel holes thereon. The storing cabinet is designed to match the curve of the in-line motor and being made from flexible plastic material. The storing cabinet is provided with a folding line adjacent to the lower horizontal rod. The inner curve wall of the storing cabinet is provided with a plurality of elongate cartridges for storing the back-up blades. The opening of each of the elongate cartridges is directed upward and slantly such that the back-up blades will not easily slip off. The inner curve wall is further provided with a plurality of small resilient clips with which a plurality of box wrenches can be fixedly disposed therein.

A relative larger resilient clip for a T-shape wrench is also disposed on the inner curve wall. Wherein by this arrangement, both the blades and tooling can be suitably stored within the storing cabinet. Wherein in use, the storing cabinet can be readily opened by means of a handle and the folding line. Afterward, the storing cabinet can be readily resumed to its original position as it is pushed toward the coping saw. The storing cabinet is further provided with a pair of resilient fasteners at both sides with which the left and right brackets and the front sectional housing can be fixedly locked thereof. By this provision, the in-line motor can be suitably covered and the debris can be suitably blocked from entering the in-line motor. As a result, the in-line motor being free from being covered with dust. Via a simple measure, a plurality of functions can be attained.

It is the objective of this invention to provide a coping saw having inline motor and storing cabinet comprises a basement with which a left and right U-shape brackets can be locked side-by-side thereon. Each of the left and right brackets is provided with a shaft hole respectively at their side wall. Each of the shaft holes is disposed with a bearing set with which an upper and lower swinging arms are rotationally mounted thereof. A blade is bridged between the free ends of the upper and lower swinging arms.

The opposite ends of those upper and lower swinging arms are connected with a linkage. The lower portion of the right bracket is connected with a front sectional housing in which a receiving space is defined for mounting an in-line motor therein. The output shaft of the in-line motor is pivotally mounted with an eccentric linkage which is interconnected to the lower swinging arm by means of a locking rod. Wherein when the motor is rotated, the blade will be oscillated to cut a workpiece by those repetitively moved upper and lower swinging arms. The lower portion of the left bracket is provided with a plurality of threaded holes via the basement with which a storing cabinet is fixedly attached by a plurality of locking bolts with the lower horizontal rod having a plurality of dowel holes thereon. The storing cabinet is designed to match the curve of the in-line motor and being made from flexible plastic material. The storing cabinet is provided with a folding line adjacent to the lower horizontal rod. The inner curve wall of the storing cabinet is provided with a plurality of elongate cartridges for storing the back-up blades. The opening of each of the elongate cartridges is directed upward and slantly such that the back-up blades will not easily slip off. The inner curve wall is further provided with a plurality of small resilient clips with which a plurality of box wrenches can be fixedly disposed therein. A relative larger resilient clip for a T-shape wrench is also disposed on the inner curve wall. Wherein by this arrangement, both the blades and tooling can be suitably stored within the storing cabinet. Wherein in use, the storing cabinet can be readily opened by means of a handle and the folding line.

Afterward, the storing cabinet can be readily resumed to its original position as it is pushed toward the coping saw. The storing cabinet is further provided with a pair of resilient fasteners at both sides with which the left and right brackets and the front sectional housing can be fixedly locked thereof. By this provision, the in-line motor can be suitably covered and the debris can be suitably blocked from entering the in-line motor. As a result, the in-line motor being free from being covered with dust.

In order that the present invention may more readily be understood the following description is given, merely by way of example with reference to the accompanying drawings, in which: Figure 1 is a perspective view of the coping machine made according to the present invention; Figure 2 is an exploded perspective view of the coping saw made according to the present invention; and Figure 3 is a detailed view of the storing cabinet of the coping saw made according to the present invention.

Referring to Figures 1, 2 and 3, the coping saw having in-line motor and storing cabinet made according to the present invention generally comprises a basement 2 with which a left and right U-shape brackets 21 and 22 can be locked side-by-side thereon. Each of the left and right brackets 21 and 22 is provided with a shaft holes 23 and 24 respectively at their side wall. Each of the shaft hole 23 and 24 is disposed with a bearing set 25 with which the upper and lower swinging arms 26 and 27 are rotationally mounted thereof. A blade 3 is bridged between the free ends of the upper and lower swinging arms 26 and 27. The opposite ends of the upper and lower swinging arms 26 and 27 are interconnected with a linkage (not shown). The lower portion of the right bracket 22 is connected with a front sectional housing 4 in which a receiving space 41 is defined for mounting an in-line motor 42 thereof. The output shaft 421 of the in-line motor 42 is pivotally mounted with an eccentric linkage 43 which is interconnected to the lower swinging arm 27 by means of a locking rod 44. Accordingly, when the motor 42 is rotated, the blade 3 will be oscillated to cut a workpiece by the repetitively moved upper and lower swinging arms 26 and 27.

On the other hand, the lower portion of the left bracket 21 is provided with a plurality of threaded holes 29 via the basement 2. Accordingly, a storing cabinet 5 can be fixedly attached by a plurality of locking bolts with the lower horizontal rod 51 having a plurality of dowel holes 511 thereon.

The storing cabinet 5 is designed to match the curve of the in-line motor 42 and is made from flexible plastic material. The storing cabinet 5 is provided with a folding line 52 adjacent to the lower horizontal rod 51. The inner curve wall 53 is provided with a plurality of elongate cartridges 54 for storing the back-up blades 3.

Referring to Figure 3, the opening 541 of each of the elongate cartridges 54 is directed upward and slantly, accordingly, the back-up blades 3 will not easily slip off. The inner curve wall 53 is further provided with a plurality of small resilient clips 55 which a plurality of box wrenches 6 can be fixedly disposed therein. On the other hand, a relative larger resilient clip 56 for T-shape wrench 56 is also disposed on the inner curve wall 53. By this arrangement, both the blades 3 and tooling can be suitably stored within the storing cabinet 5. In use, the storing cabinet 5 can be readily opened by means of the handle 57 and the folding line 52. Afterward, the storing cabinet 5 can be readily resumed to its original position as it is pushed toward the coping saw. The storing cabinet 5 is further provided with a pair of resilient fasteners 58 at both sides with which the left and right brackets 21 and the front sectional housing 4 can be fixedly locked thereof. With this provision, the in-line motor 42 can be suitably covered and the debris can be suitably blocked from entering the in-line motor 42. As a result, the inline motor 42 is free from being covered with dust. With a simple measurement, a plurality of functions can be attained.

In order to provide a safe utilization of the coping saw, the left bracket 21 is provided with a large through hole 211, see Figure 2, with which a controlling panel 21 2 can be suitably disposed within the space defined by those left and right brackets 21 and 22. The controlling panel 212 is provided with a telescopic switch 213. When the cover 214 for the large through hole 21 2 is opened, the triggering leg 21 5 of the telescopic switch 213 may extend such that the power supply is interrupted, ie the coping saw is immediately stopped. Even the power switch is depressed, the in-line motor 42 is still disabled. As a result, the operator can be suitably protected without being incidentally injured.

While particular embodiment of the present invention has been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claim all such changes and modifications that are within the scope of the present invention.

Claims

1. A coping saw in which the lower portion thereof is provided with a storage cabinet, an inner wall of said storage cabinet including at least one of an elongate receptacle for storing spare blades, and/or at least one resilient clip in which a wrench can be fixedly disposed therein.

2. A coping saw according to claim 1 wherein the storage cabinet consists of a cover member for part of the coping saw which is attached at one edge to the coping saw and foldable about a fold line thereby to gain access to a rear face thereof being said inner wall.

3. A coping saw according to claim 2 wherein the storage cabinet is of plastics material.

4. A coping saw according to any preceding claim wherein the elongate receptacles are directed upward and slantly such that said spare blades will not easily fall out.

5. A coping saw according to any one of claims 2 to 4 wherein the storage cabinet also acts as a cover for the motor of the saw, thereby to ensure that in use the motor is suitably covered and debris can be suitably prevented from entering thereby maintaining the motor substantially free from dust.

6. A coping saw comprising a base unit on which a U-shaped body portion is mounted, each arm of the U-shaped body portion substantially enclosing one of an upper and lower swinging arm, rotationally mounted therein and a blade bridging the free ends of said upper and lower swinging arms wherein the lower portion of said U shaped body includes a receiving space in which is mounted a motor, the output shaft of said motor being provided with an eccentric linkage which is interconnected to the lower swinging arm, wherein when said motor is rotated, said blade oscillates thereby to cut a workpiece.

7. A coping saw substantially as herein described with reference to the accompanying drawings.