CN2183841Y

CN2183841Y - Backsaw aid

Info

Publication number: CN2183841Y
Application number: CN 94205204
Authority: CN
Inventors: 刘秀男
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-26
Filing date: 1994-03-26
Publication date: 1994-11-30
Anticipated expiration: 2004-03-26

Abstract

The utility model relates to an auxiliary sawing apparatus for a manual saw, comprising a base body and a long frame body. Both ends of the utility model form a circular shaft sleeve. The top end of the radial concave part of the shaft sleeve forms an opening. A fixed seat forms a C-shaped sleeve ring whose inner diameter is corresponding to the outer diameter of the shaft sleeve. The top is fixedly provided with two sliding rods. A manual saw is pivoted. The concave part of the outer diameter of the shaft sleeve is provided with an annular trough and a shallow arc concave hole. The outer diameter of the fixed seat is provided with a screw hole and a first forcing bolt. The outer diameter is provided with a first positioning hole. The end surface of the fixed seat along the positive direction is convexly provided with an annular flange, which forms an annular concave part. The annular flange is provided with a dividing area for angles and a shallow arc concave hole. The end surface of the shaft sleeve is provided with a fixed pressing plate which is provided with a second positioning hole, a penetrating screw hole and a second forcing bolt. The two positioning holes are provided with a steel ball spring as the support of the shallow arc concave hole.

Description

Backsaw aid

The utility model relates to a kind of hand saws, and particularly relating to a kind of is ZL93215431.X at the patent No., and name is called the coping saw that the application case of " coping saw assist saw cutting device " further improves and assists saw cutting device.

The use of relevant coping saw known in the prior art, under the prerequisite of layman's operation, manufacturing industry then develops and a kind of auxiliary saw cutting device, it is that one two end that is pivoted in a base body bottom side has the elongate frame of holder, set firmly two straight-bars on the holder as the sheathed location of coping saw and utilize, it moves change in elongate frame level angle scope and leads the predetermined angle direction of whole coping saw translation and workpiece is carried out sawing, though these devices have definite guiding function than independent coping saw operation, but effect is not then still applied in vertical mis-cut angle of sawing work must make to(for) workpiece, and the original bill patent No. ZL93215431.X that this case applicant develops, name is called " a kind of coping saw is assisted saw cutting device ", it can break through traditional spatial constraints, can allow the layman also can be easily and carry out manipulating of vertical mis-cut angle accurately; But the applicant does not satisfy according to this, is still constantly continued the active research improvement, and suspicion is not enough slightly on positioning action to find original bill, easily influences the smooth and easy of rotation because of generation burr phenomenon after the bolt packing and rotate to go up, and real is the place of blemish in an otherwise perfect thing.

In view of this, this case designer, constantly grinds in detail and analyses and further improve and research at the defective of original bill in line with excelsior spirit, after continuous experiment, trial-production and several times improving, develop the auxiliary saw cutting device of the utility model coping saw that is suitable for practicality finally.

Main purpose of the present utility model is, overcomes the shortcoming of prior art, and provides a kind of improved coping saw to assist saw cutting device, makes it in the selection of angle operation more elasticity be arranged, and all convenient in assembling of producing and operation.

The purpose of this utility model is realized by following technical scheme.A kind of coping saw is assisted saw cutting device, include a base body, its bottom is with the angle pivot translation location structure mode microscler framework that is pivoted, two ends of this microscler framework radially enlarge the axle sleeve that extends into a circle respectively, this axle sleeve radially is arranged with the recess of a desired depth, this recess top outwards enlarges and forms an opening, one holder is a C shape collar that is sleeved on this axle sleeve external diameter, its internal diameter is corresponding with the external diameter of this axle sleeve, and make its two the axle center and the sawing bottom line of coping saw be a straight line, cooperate the pivoting angle sawing to make axle, each uprightly sets firmly two slide bars its top, this two sliding pole axis is characterized in that to the coping saw that is pivoted with lift adjustment and horizontal slip frame mode:

This axle sleeve external diameter is arranged with an annular groove, and is arranged with a shallow arc pothole at least in the predetermined angle position, axle center of annular groove avris; The external diameter circumference of this holder is provided with a screw that runs through internal diameter at least to annular groove position that should axle sleeve, this screw then screw togather axle establish one can be to the first packing bolt of annular groove pushing tow; This holder external diameter, the shallow arc pothole of axle sleeve position is arranged with first locating hole of a connection internal diameter relatively, the aperture, inner end of this first locating hole also must be less than the aperture on its external diameter top, and provide a steel ball and spring to be placed in it, the top of this first locating hole and establish sealing and the unidirectional top of steel ball spring is compeled with a blind nut spiral shell;

The forward end face of this holder also is convexly equipped with an annular lip again, forms a concentric and recessed annular recess of side direction simultaneously, and a side of this annular lip is carved the delineation district that is provided with angle, and side then is concaved with a plurality of shallow arc potholes in addition; The end face forward of this axle sleeve sets firmly one and prevents the fixation clip that holder is axially deviate from, and is maintained fixed contacting slightly of pressing plate periphery and holder end face; The shallow arc pothole position of the corresponding stationary annular flange of this fixation clip one side is provided with one second locating hole, the aperture, inner end of this second locating hole also must be less than the aperture of its top end face, ccontaining for a steel ball and spring, sealing is established with the blind nut spiral shell in the top of this two locating hole, the unidirectional top of steel ball spring is compeled, and its bottom side be to should being provided with a screw that runs through the positive back side at least in the annular recess position, and this screw and axle are established the second packing bolt that can compel the annular recess top.

The purpose of this utility model also can further be realized by following technical measures.Aforesaid coping saw is assisted saw cutting device, and the delineation zone position of the contiguous holder end face of its axle sleeve end face of wherein said microscler framework is horizontally set with a horizontal breach, and the central horizontal line of this horizontal breach is vertical with the center line of axle sleeve; Relatively this horizontal gap position is integrally formed is convexly equipped with one relatively and provides delineation to distinguish the horizontal expansion index portion of making zero and assembling correct guide so that embed this horizontal breach for this fixation clip end face.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is most of exploded perspective view of the utility model preferred embodiment.

Fig. 2 is the combination stereogram of the utility model preferred embodiment.

Fig. 3 is the cutaway view of A-A section among the utility model Fig. 2.

Fig. 4 is the cutaway view of B-B section among the utility model Fig. 2.

Fig. 5 is the cutaway view of D-D section among the utility model Fig. 2.

Fig. 6 is the cutaway view of E-E section among the utility model Fig. 2.

Fig. 7 is the cutaway view of G-G section among the utility model Fig. 2.

Below in conjunction with accompanying drawing and preferred embodiment, to concrete structure of the present utility model, feature and effect, describe in detail as after.

At first, see also shown in Figure 1ly, the utility model coping saw is assisted saw cutting device, includes a base body 10, one microscler framework 20, two holders 30, two fixation clips 40 and a coping saw group 50; Wherein,

Base body 10 is for being Yi Jiaotai, its dorsal part is respectively equipped with two straight barricades 11, this straight barricade 11 is arranged with the delineation 111 of length dimension in parallel, and reserve a breach 12 therebetween, these breach 12 centers then are arranged with shaft-pivot hole 13, and the scallop section 14 that outwards is extended into an an angle of 90 degrees at these shaft-pivot hole 13 places, which is provided with the delineation 141 that angle is cut apart, these scallop section 14 corresponding bottoms are arranged with a location hole slot 15 respectively according to the predetermined angle of circumference again as shown in Figure 7;

See also Fig. 1, shown in Figure 7, microscler framework 20 is arranged with a location axis hole 21 at total length 1/3rd places, cooperate an alignment pin 22 to wear axle and close shaft-pivot hole 13 in base body 10, rotate in the axle pivot translation at this place to keep microscler framework 20, it is end distance total length 1/3rd places in addition, promptly with base body 10 positioning hole grooves 15 corresponding sections, then be arranged with a through hole 23, and set up a control lever 24 at its bottom side relative position axle pivot, the centre of this control lever 24 is a pivot button 241, and its front end pivot joint one ejector pin 242 vertically upward, it is connected with a spring 243 near rear end, pull rear end for control lever 24, and the ejector pin 242 of control front end is done upwards to move to head into its relative positioning hole groove 15; Its two distolateral difference radially enlarges the rounded without exception axle sleeve of formation 25, wherein the central authorities of this axle sleeve 25 are arranged with the recess 251 of a desired depth simultaneously, for saw blade vertically deeply, and these recess 251 tops outwards enlarge the scope of one 90 openings 252 of spending with the enhancement mis-cut angle that extend to form, the external diameter of axle sleeve 25 is arranged with an annular groove 26 that extends along its external diameter circumference with one heart, these annular groove 26 avris horizontal central line positions (0 degree position, angle) and be arranged with a shallow arc pothole 27; The forward end face of axle sleeve 25 is arranged with three fixing threaded holes 28, and is arranged with a horizontal breach 29 at the shallow arc pothole 27 of correspondence across the horizontal central line position;

Holder 30 is a C shape collar that is sleeved on axle sleeve 25 external diameters, its open top 31 2 side spaced and parallel set firmly two upright slide bars 32, for the positioning sleeve of a coping saw group 50 if use, its internal diameter 33 is corresponding with the external diameter of axle sleeve 25, and make the axle center C of the two and the sawing bottom line F of this coping saw 50 unite two into one and be same straight line (as shown in Figure 7), use to do the sawing that axle closes pivoting angle; See also Fig. 1, shown in Figure 4, annular groove 26 lower positions of the external diameter 34 relative axle sleeves 25 of holder 30 are arranged with two screws 35 that run through internal diameter, this screw 35 screws togather axle respectively and establishes one first packing bolt 36, the front end of this first packing bolt 36 is compeled end 361 for the top, its external diameter then is provided with external screw thread 362, for establishing the adjustment of moving that screws togather for the axis direction vertical range, carry out annular groove 26 packings location to axle sleeve 25 relative to axle; It can be done rotation at any angle with the 36 relative guidings of the first packing bolt according to annular groove 26 and adjust (as shown in Figure 4) after the first packing bolt 36 unscrews with external screw thread 362; In addition, please cooperate consult shown in Figure 3, holder 30 is looked for the location easily in order to make special angle, especially 0 spends the position, then in shallow arc pothole 27 positions of its external diameter 34 corresponding axle sleeves 25, be arranged with first locating hole 37 of a connection internal diameter 33 relatively, the aperture of these first locating hole, 37 inner ends 371 must be less than the aperture on its external diameter top 372, and provide a steel ball 373 and spring 374 ccontaining in it, this first locating hole, 37 internal diameters and be provided with an internal thread 375, and the spiral shell that cooperates a blind nut 376 establishes and seals its top 372, so that steel ball 373, spring 374 is towards its unidirectional holding in 371 positions, inner end, and heads into easily in the shallow arc pothole 27 of axle sleeve 25; The forward end face of this holder 30 also is convexly equipped with an annular lip 38 again, and forms a concentric and recessed annular recess 39 of side direction simultaneously, and a side of this annular lip 38 is carved the delineation district 381 that is provided with angle, and side then is concaved with a plurality of shallow arc potholes 382 in addition;

See also Fig. 1, Fig. 5, shown in Figure 6, two fixation clips 40 are to be formed by the one-body molded casting of zinc, it generally is the plate body of corresponding microscler framework 20 axle sleeves 25 end faces, zone is arranged with three perforation 41 in the middle of it, and cooperate wearing of three fixed screws 42 to screw togather again to be fixed in three fixing threaded holes 28 of axle sleeve 25, horizontal breach 29 positions of relative axle sleeve 25 end faces of its dorsal part end face, be convexly equipped with the index portion 43 of a horizontal expansion relatively, for being embedded in relatively in the horizontal breach 29, with the ease of assembly location, and water supply stratosphere degree horn craving incorporates zero guide into; Its below two sides also correspondingly again are arranged with two screws that run through 44, and this screw 44 screws togather axle respectively and establishes one second packing bolt 45, for the annular recess 39 of packing holder 30 relatively, provide the axial packing of holder 30 ends location according to this; In order to make holder 30 increase the convenience that axle changes the special angle location, then in shallow arc pothole 382 positions of its annular lip 38, be provided with one second locating hole 46 in fixation clip 40, the aperture of these second locating hole, 46 inner ends 461 also must be less than the aperture on its top 462, accommodate with the axial setting that a steel ball 463, spring 464 are provided, the internal diameter of second locating hole 46 also is provided with internal thread 465, screw togather sealing for a blind nut 466, make this steel ball 463 be subjected to the pushing tow of spring 464 and push up shallow arc pothole 382 to this annular lip 38;

See also shown in Figure 1ly, coping saw group 50 comprises two handbow saw frames 51, and it vertically is provided with axle sleeve 511, is sheathed on slide bar upright on the holder 30 32 to endwisely slip, and it laterally is provided with sliding sleeve portion 512; One coping saw 52 is provided with the handle portion 521 of a Jiong shape, and a saw blade 522 is set up in its bottom side, and the centre then is horizontally set with a round bar 523, and these round bar 523 trunnion axis are located at the sliding sleeve portion 512 of handbow saw frame 51, so that carry out the sawing operation according to the push-and-pull of operator's hand;

Compared with the prior art the utility model has tangible advantage and good effect, describes in detail below in conjunction with its new structure that adopts.See also Fig. 2, shown in Figure 7, combination by above-mentioned each parts, assist saw cutting device and constitute the utility model coping saw, it can be the scallop section 14 of base body 10 be done Plane Angle adjustment use except remaining with original bill, more because the internal diameter 33 of the holder 30C shape collar is that slick and sly and steady earth's axis pivot cooperates with the external diameter of microscler framework 20 axle sleeves 25, the axle center C of mat its two is concentric and be a straight line with the sawing bottom line F of coping saw sawtooth, and can be swimmingly the coping saw sawing direction of 30 2 pairs of slide bars 32 of holder be changed over required mis-cut angle, shown in the figure center line, spend under the cooperation of openings 252 simultaneously and at the recess 251 and 90 of axle sleeve 25, can make coping saw do more deep and perpendicular to the use (as shown in Figure 4) of machining object, it utilizes radially the screwing togather of the first packing bolt 36 of holder 30 external diameters 34, axle moves up into the annular groove 26 of axle sleeve 25 external diameters, restrictive axial is looked for saw cutting angle, and bestow axial top and compel end 361 packings location, wherein if having because of the 36 relative packings of the first packing bolt, when producing the metal burr with the external diameter that causes axle sleeve 25, then all the unlikely axle that influences changes smooth and easy because of it is subside in the bottom of annular groove 26, same, on the fixation clip 40 of holder 30 forward end faces, be provided with two second packing bolts 45, and combine with axle sleeve 25 at it and to be able to its end face of axial packing under supporting, as shown in Figure 6, and strengthened the steadiness of holder 30 angle orientation, therebetween because of the height difference of annular lip 38 with annular recess 39, make between two parties if the burr phenomenon that produces because of packing is arranged, also design that equally can annular recess 39 and flashing, the smoothness that unlikely influence is rotated, especially first locating hole 37 that radially is provided with at holder 30 reaches axially distolateral second locating hole 46 that is provided with, establish the quick searching location of carrying out multinomial special angle with the shallow arc pothole that cooperates ad-hoc location because of its top that is provided with steel ball spring all respectively, wherein more can be according to indivedual first, second locating

hole

37,46 blind nut 376,466 axial turns, adjust the elastic force level of compression of spring, and but timely adjustment holder 30 angle axles change the smoothness of operation, and it obviously has more progressive effect than original bill.

In sum, the utility model can make the work of mis-cut angle operator bow saw in vertical three dimensions become very easily and be very accurate, the layman can be made and manipulating of vertical mis-cut angle can be carried out easily exactly as long as adjust holder, and upward shortcoming is more suitable for practicality because of the influence of bolt packing generation burr phenomenon is rotated smoothly to have overcome rotation, make it in the selection of angle operation, bigger elasticity be arranged, and it is all comparatively convenient in the assembling of producing, in fact be one to have novelty, the new design of creativeness and practicality.

Claims

1, a kind of coping saw is assisted saw cutting device, include a base body, its bottom is with the angle pivot translation location structure mode microscler framework that is pivoted, two ends of this microscler framework radially enlarge the axle sleeve that extends into a circle respectively, this axle sleeve radially is arranged with the recess of a desired depth, this recess top outwards enlarges and forms an opening, one holder is a C shape collar that is sleeved on this axle sleeve external diameter, its internal diameter is corresponding with the external diameter of this axle sleeve, and make its two the axle center and the sawing bottom line of coping saw be a straight line, cooperate the pivoting angle sawing to make axle, each uprightly sets firmly two slide bars its top, this two sliding pole axis is characterized in that to the coping saw that is pivoted with lift adjustment and horizontal slip frame mode:

2, the auxiliary saw cutting device of coping saw according to claim 1, the delineation zone position that it is characterized in that the contiguous holder end face of its axle sleeve end face of wherein said microscler framework is horizontally set with a horizontal breach, and the central horizontal line of this horizontal breach is vertical with the center line of axle sleeve; Relatively this horizontal gap position is integrally formed is convexly equipped with one relatively and provides delineation to distinguish the horizontal expansion index portion of making zero and assembling correct guide so that embed this horizontal breach for this fixation clip end face.