MX2013010225A

MX2013010225A - Dual blade reciprocating saw.

Info

Publication number: MX2013010225A
Application number: MX2013010225A
Authority: MX
Inventors: Marc Vitantonio; Trevor Jackson; John Nottingham; Donald C Fuchs; John Spirk; Robert Soreo
Original assignee: Infusion Brands Inc
Priority date: 2011-03-07
Filing date: 2012-03-02
Publication date: 2014-01-08
Also published as: CN102905830A; AU2012202705B8; BR112013022972A2; WO2012121994A1; AU2012202705A8; JP2014507299A; AU2012202705B2; AU2012202705A1; ZA201306729B; NZ605650A; TW201247346A; EP2516091A4; RU2012146192A; EP2516091A1

Abstract

A reciprocating saw for cutting material. The reciprocating saw includes a drive system and a gear arrangement that is designed to cause first and second reciprocating saw blades to partially or fully reciprocate in opposite directions. The gear arrangement is connected or interconnected to first and second blade carrying arms. The first reciprocating saw blade is connected to the first blade carrying arm and the second reciprocating saw blade is connected to the second blade carrying arm. The gear arrangement causes the first and second blade carrying arms to move when the drive system is activated to thereby cause the first and second reciprocating saw blades to partially or fully reciprocate in opposite directions relative to one another. The gear arrangement is designed to enable a stroke length of the first and second reciprocating saw blades to be changed.

Description

DOUBLE BLADE RECIPROCATING SAW FIELD OF THE INVENTION The present invention relates to cutting devices, particularly directed to power saws, more particularly directed to power saws that include a plurality of saw blades that can move independently of each other, and more particularly to a power saw. power that includes two saw blades that can move simultaneously in opposite directions to each other during material cutting.

BACKGROUND OF THE INVENTION Reciprocating saws are known in the art and used to cut many types of materials. Saw blade cuts materials when the blade moves back and forth. Most reciprocating tools are driven by an electric motor, such as reciprocating saws. A rotating shaft or cam is generally used to make the saw blade oscillate. In general, the reciprocating saws are driven by an electric motor having a rotating output shaft. The rotational movement generated by the motor is then translated into reciprocating motion to move the blade of the saw.

Several reciprocating power saws of the non-limiting prior art are illustrated in the Patents Americans Nos. D642, 028; 7, 963, 043; D631, 314 8,006,392; 7,797,841; 7, 721, 450; D612, 700; 7, 665,216 D608, 611; 7, 600, 458; D596, 005; D591, 574; 7, 493, 698 7, 448, 137; 7, 437, 824; 7,426, 786; D572, 563; 7, 395, 603 D560, 988; D558,550; D558,018; D551,930; D544,327; 7, 225, 714 7,225,546; 7,204,026; D538, 617; 7,188,425; 7, 168, 169 7, 127, 973; D530,174; 7, 114, 259; D527 (967; D527,597; D527, 596 D527,233; 7,096,590; 7,096,589; D525, 845; D525, 842 7, 082, 689; D524,623; D524,131; D524,130; D523,719; D523, 310 7, 032, 486; 6, 912, 790; D506, 117; D504, 603; 6, 871, 05 6, 851, 194; 6, 851, 193; D500, 651; 6, 829, 831; 6, 810, 589 6,782,781; 6, 772, 662; 6,758, 119; 6,742,267; 6, 705, 017 D487,384; D485,479; D485,142; D485.141; D485.140; D484, 759 6, 671, 969; 6,651,348; D480,616; D479,453; D479,447; D479, 107 D479, 106; D475.907; 6,568,089; D474, 088; D471,782; D471, 418 D471, 417; D468, 982; 6, 508, 151; 6, 477, 884; D465, 138 6, 467, 177; 6,449, 851; 6,401,585; D456, 233; D448, 634 D447, 924; 6, 286, 217; 6,272,757; 6,264,211; 6,249, 979 6,237,179; 6,234,255; 6.233, 833; 6,212,781; D434, 627 6, 112, 420; D427, 865; 6,065,216; 6, 007, 541; 5, 940, 977 5, 918, 525; D408, 699; 5, 860, 218; 5, 855, 070; D401, 128 5, 782, 000; 5,724, 742; 5, 724, 741; 5, 722,309; D379, 291 5, 598, 636; D376, 525; 5,421,232; 5, 21, 091; D358, 315 5,392,519; 5,349,754; 5,271,154; 5,193,281; 5,155, 914; D322, 921; 5,031,324; 4,969, 270; 4,962,588; D310.008; 4, 934, 056; D308,469; 4,798,001; 4,550,501; 4, 145, 811; 4,038,721; and 3,945,120; and Patent Publications Americans Nos. 2011/0131819; 2011/0107608; 2011/0061245 2010/0218655; 2010/0218389; 2010/0180455; 2010/0154231 2010/0031517; 2009/0241354; 2009/0223071; 2009/0151174 2009/0113727; 2009/0106986; 2009/0049973; 2008/0307936 2008/0276470; 2008/0235961; 2008/0172890; 2008/0141545 2008/0104853; 2008/0047150; 2008/0041174; 2008/0010840 2007/0214660; 2007/0209217; 2007/0209162; 2007/0163415 2007/0151112; 2007/0131076; 2007/0101587; 2007/0068012 2007/0000137; 2006/0288591; 2006/0260141; 2006/0137498 2006/0130628; 2006/0101650; 2006/0096104; 2006/0060054 2005/0262710; 2005/0235799; 2005/0223569; 2005/0211046 2005/0211023; 2005/0199117; 2005/0183271; 2005/0178012 2005/0144791; 2005/0132583; 2005/0120568; 2005/0103320 2005/0102846; 2005/0092156; 2005/0005458; 200410255474 2004/0237678; 2004/0231170; 2004/0221461; 2004/0181952 2004/0143976; 2004/0117993; 2004/0049928; 2004/0003504 2003/0150120; 2003/0145472; 2003/0140507; 2003/0121389 2003/0110646; 2003/0110645; 2003/0101600; 2003/0051352 2003/0014869; 2003/0009888; 2002/0170335; 2002/0095798; 2002/0026718; 2001/0034942; and 2001/0034941, all of which are incorporated herein by reference Although this type of cutting device is effective for many applications, there are several disadvantages with the use of that device. A disadvantage is that the oscillation of the cutting blade can cause the material being cut to move back and forth due to the friction and cutting action of the cutting blade when the cutting blade is moved back and forth during the cutting operation. cut of the material. This movement of the material during the cutting process may result in improper cutting of the material and damage to the material. Also, when the material to be cut is held in place, the reciprocating saw will tend to move back and forth during the cut thus making it difficult to hold the saw in the proper position and increasing the fatigue rate on the user to hold and properly place the saw during the cutting of a material. Also, some cutting operations work better with different stroke lengths; however, most reciprocating saws operate with only one stroke length.

In view of the current state of the art with respect to reciprocating saws, there is a need for an improved reciprocating saw or saw blade that reduces forward / backward force, vibration and pulling actions caused by the saw blade reciprocating during the cutting operation, which reduces user fatigue when using the reciprocating saw, which improves the accuracy of the cutting operation through the material, and which provides a more uniform cut through the material.

BRIEF DESCRIPTION OF THE INVENTION The present invention is directed to a reciprocating saw of multiple blades and blades for use with that saw that resolves the previous deficiencies of reciprocating saws of the prior art. Generally, the multi-blade reciprocating saw includes two reciprocating blades, however, it can be seen that the multi-blade reciprocating saw can be designed to include more than two reciprocating saw blades, or to be used with a single reciprocating saw blade. The size, shape, length, thickness and / or material of the reciprocating saw and saw blades used with the reciprocating saw are not limiting. One or more reciprocating saw blades used in the reciprocating saw generally have the same size, shape, length, thickness; however, this is not a requirement. The present invention is directed to reciprocating saws, more particularly directed to a reciprocating saw that includes a plurality of reciprocating saw blades that can be moved independently of one another, and even more particularly a reciprocating saw that includes two reciprocating saw blades that can move simultaneously in opposite directions to each other during cutting of material. Reciprocating saws of the prior art generally include a single reciprocating saw blade that oscillates in a backward and forward motion. The present invention pertains to the concept of including two reciprocating saw blades that can oscillate together in opposite directions to each other during material cutting. The present invention contemplates a power tool that is dedicated for use with one or more reciprocating saw blades. The ability to oscillate two reciprocating saw blades in opposite directions to each other during material cutting can result in 1) better cutting of material by reciprocating saw blades, 2) reducing vibration caused by material cutting by the reciprocating saw blades and / or reciprocating saw operation and therefore reduce user fatigue when using the reciprocating saw and / or facilitate the quality and / or accuracy of a cut in a material during the use of the saw reciprocating, 3) improvements in the speed and / or accuracy of the cutting operation through a material, 4) a reduction of forces backwards / forwards on the user when using the reciprocating saw for cutting through the material and therefore reducing user fatigue when using the reciprocating saw and / or facilitating the quality and / or accuracy of the cut in a material during the use of the reciprocating saw, 5) a reduction of the actions not caused by the reciprocating saw blade during the cutting operation and therefore reduces user fatigue when using the reciprocating saw and / or facilitates the quality and / or accuracy of a cut in a material while using the saw reciprocating, 6) improvements in the accuracy of the cutting operation through the material, and / or 7) provides more uniform cuts and / or a less abrupt cut through the material.

In a non-limiting aspect of the present invention, the reciprocating saw blades are oscillated in opposite directions to each other during cutting of a material. The speed or speed of the oscillation of the two reciprocating saw blades when they oscillate in opposite directions can be the same or different. In a non-limiting aspect of the invention, the speed or speed of oscillation of the two reciprocating saw blades when they oscillate in opposite directions may be the same.

In another non-limiting and / or alternative aspect of the present invention, the two reciprocating saw blades may have the same or different lengths, location and / or shape of the teeth. In a non-limiting mode of invention, the length of the two reciprocating saw blades is the same; however, this is not a requirement. In another non-limiting and / or alternative embodiment of the invention, the location of the teeth of the two reciprocating saws blades is the same, however, this is not a requirement. Generally, the location of the teeth is on the lower edge of the reciprocating saw blade, however, it can be seen that the teeth can be placed on both the upper and lower edge of the reciprocating saw blade, however, this is not a requirement. In still another non-limiting and / or alternative form of the invention, the shape of the two reciprocating saw blades is the same, however, this is not a requirement. When the length, location of the teeth and shape of the two reciprocating saw blades are the same, the two reciprocating saw blades can be interchangeable without affecting the operation of the reciprocating saw; however, this is not a requirement. In yet another non-limiting embodiment and / or alternative of invention, the connecting arrangement of the two reciprocating saw blades may be the same or different. When the reciprocating saw blades have the same connection arrangement, any reciprocating saw blade can be connected to the first or second blade support arm without affecting the operation of the reciprocating saw, without However, this is not a requirement. When the reciprocating saw blades have a different connection arrangement, a reciprocating saw blade can be designed to connect only to one of the blade support arms and the other reciprocating saw blade can be designed to connect only to the other arm. blade holder; however, this is not a requirement.

In yet another non-limiting and / or alternative aspect of the present invention, the reciprocating saw may optionally include a quick connect / release arrangement for one or both of the reciprocating saw blades; however, this is not a requirement. The configuration of the connection / quick release arrangement, when included in the reciprocating saw, is not limiting. In a non-limiting configuration, one or more squeeze buttons are provided on the reciprocating saw to allow one or both of the blades of the reciprocating saw to be connected to and / or released from the blade support arms on the reciprocating saw. The location of one or more of the buttons on the reciprocating saw is not limiting. As can be appreciated, one or more of the reciprocating saw blades can be connected to the blade support arms on the saw by the use of a screw, a hexagonal screw, etc. instead of a blade support arm on the reciprocating saw.

In another non-limiting and / or alternative aspect of the present invention, the configuration of the cutting teeth on the first and second reciprocating saw blades can be the same or different. In a non-limiting embodiment of the invention, the configuration of the teeth on each of the reciprocating saw blades is the same. In another non-limiting embodiment of the invention, the configuration of the teeth on each of the reciprocating saw blades is different. In yet another, non-limiting embodiment of the invention, the configuration of the teeth on one or both of the reciprocating saw blades allows the reciprocating saw blades to cut material when they move in both forward and backward directions, however, This is not a requirement. In yet another non-limiting embodiment of the invention, one or more teeth on one or both reciprocating saw blades are angled outwardly from the central cutting axis of the reciprocating saw blades. That configuration of the reciprocating saw blade can be used to 1) cause one or both blades of the reciprocating saw to move toward each other during material cutting, 2) facilitate the movement of cut material away from one or two blades of the reciprocating saw and / or 3) increases ease of cutting through a material, however, this is not a requirement. The configuration of the teeth of the Internal and / or external reciprocating saw blades are not limiting.

In yet another non-limiting and / or alternative aspect of the present invention, the reciprocating saw is a dedicated tool for use with one or more reciprocating saw blades. The reciprocating saw can be driven by batteries and / or driven by an AC power supply cable. In a non-limiting mode, when two reciprocating saw blades are connected to the reciprocating saw, the reciprocating saw includes granes that allow the two reciprocating saw blades to oscillate in opposite directions; however, this is not a requirement. The reciprocating saw can include gears that allow the two reciprocating saw blades to oscillate in opposite directions to the same or different speeds. In another non-limiting and / or alternative embodiment of the invention, the reciprocating saw may include one or more optional elements such as, but not limited to, a "continuous" button, a button for activating a light or laser, an indicator for level, a speed controller, a "lock" button, battery-powered motor, rechargeable battery, removable battery, vibration reducing grip, reduced vibration tip holder, reduced sliding grip, tilting handle, rotating handle, etc.; without However, this is not a requirement.

In another non-limiting / alternative aspect of the present invention, the reciprocating saw may optionally include a laser or light switch to activate and / or deactivate one or more lights or lasers on the reciprocating saw. The location of the switch and one or more lasers and / or lights on the non-limiting reciprocating saw. When one more lasers and / or lights are included in the reciprocating saw, at least one laser and / or light is usually located on the front or front portion of the reciprocating saw to 1) illuminate a region around the saw blades reciprocating to facilitate the illumination of the region to be cut by the blades of the reciprocating saw, and / or 2) create a guide line or cutting line to facilitate the guidance of one or more reciprocating saw blades along the material to be cut; however, this is not required. In a non-limiting arrangement, the laser or light switch is located on a region of the reciprocating saw that is held by the user (eg hand, etc.) when using the reciprocating saw, however, this is not required. The laser or light switch may be designed to be oppressed or be a contact switch that automatically causes one or more lasers and / or lights to illuminate when the reciprocating saw is held by the user during the use of the reciprocating saw; without However, this is not required. In that arrangement, the switch may be located at the top of or hidden beneath an external surface (eg, soft outer surface fastener, etc.) of the reciprocating saw.

In another non-limiting and even more and / or alternative aspect of the present invention, the two reciprocating saw blades may optionally include a connector arrangement that connects the two blades of the reciprocating saw together and allows the two blades of the reciprocating saw to oscillate in opposite directions. The configuration of the connection arrangement is not limiting. In a non-limiting arrangement, the connection arrangement includes a bolt and slot arrangement where one of the blades of the reciprocating saw includes a slot and the other slot of the reciprocating saw includes a bolt that is designed to move in the slot of the reciprocating saw. another blade of the reciprocating saw. The bolt may have a larger head (eg, a conical head, etc.) to retain the bolt in the reciprocating saw blade slot during the operation of the two blades of the reciprocating saw; however this is not required. The connection arrangement, when used, can be designed to facilitate the repair of the two blades of the reciprocating saw each other during the operation of the reciprocating saw and / or the cutting of the material with the two blades of the reciprocating saw.

In still another non-limiting and / or alternative aspect of the present invention, the reciprocating saw optionally includes a gear arrangement that allows the user to select a plurality of stroke options for one or more reciprocating saw blades. As ned herein, the "stroke" is the difference between the maximum forward and rearward or rearward position of the reciprocating saw blade during the operation of the reciprocating saw. The gear arrangement can be designed to allow two or more different stroke values to be used when the material is cut. In a non-limiting arrangement, one or more reciprocating saw blades may have a different stroke value by simply selecting the direction of rotation of the reciprocating saw motor. For example, when the motor is selected to operate in the clockwise direction, the stroke value of one or more of the reciprocating saw blades may be a stroke value A (eg, 1.91 cm (0.75)). inches), 2.54 cm (1 inch), etc.), and when the motor is selected to operate in the counterclockwise direction, the stroke value of one or more reciprocating saw blades may be a value of race B (1.27 cm (0.5 inches), 0.64 cm (0.25 inches) etc.). As can be appreciated, the gear arrangement can be designed to change the value of the stroke or length without having to change the direction of the motor.

In another non-limiting, even more and / or alternative aspect of the present invention, the reciprocating saw optionally includes a gear arrangement that includes a concentric cam arrangement to allow two reciprocating saw blades to oscillate in opposite directions during the operation of the saw. reciprocating saw. As can be appreciated, the gear arrangement may include another arrangement that does not have a concentric cam arrangement to allow two reciprocating saw blades to oscillate in opposite directions during the operation of the reciprocating saw.

In another non-limiting and / or alternative aspect of the present invention, the reciprocating saw may include a shoe that is used to facilitate the use of the reciprocating saw. The configuration of the shoe is not limiting. The shoe is usually placed on the front end of the reciprocating saw. In a non-limiting embodiment of the invention, the shoe, when used, can be designed to be detachable from the body of the reciprocating saw; however, this is not a requirement. In yet another non-limiting and / or alternative embodiment of the invention, the shoe, when used, may be tiltable / rotatable to allow angled cutting of the material by one or more blades of the reciprocating sierra; however this is not required.

In still another non-limiting and / or alternative aspect of the present invention, the reciprocating saw may include one or more of the following features or advantages: • The reciprocating saw can be used with one or two reciprocating saw blades.

• Reciprocating saw blades can include teeth that allow the cutting action to be performed on both the forward and return stroke.

• Reciprocating saw blades can include blade designs and / or teeth adapted for use on or with a variety of materials.

• Reciprocating saw blades can be designed to move in an opposite reciprocating motion and / or move in an orbital or elliptical motion.

• Reciprocating saw blades can result in an opposing cutting force to balance the cutting action of the reciprocating saw.

• The reciprocating saw can be designed to improve accuracy, provide more uniform cuts on work surfaces, and / or reduce user fatigue.

• The reciprocating saw can be designed to Allow a user to connect or remove the reciprocating saw blades from the blade holders.

• The reciprocating saw can be made from a variety of materials, including but not limited to metal, plastic, aluminum or recyclable material.

• The reciprocating saw can be designed to allow the motor to advance and retract to change the length of the reciprocating saw blades.

• The reciprocating saw can be designed to include a rotating handle.

• The reciprocating saw can be designed to include a pivot pivot.

• The reciprocating saw can be designed to be a manual tool.

• The reciprocating saw can be designed to include one or more electric motors.

• The reciprocating saw can be designed to include one or more reciprocating saw blades that include generally repetitive V-shaped teeth, shaped teeth, V-shaped teeth and alternating W-shaped teeth, etc.

• The reciprocating saw can be designed to include one or more reciprocating saw blades that have blade teeth on one or both sides of one or both reciprocating saw blades.

• The reciprocating saw can be designed to include one or more reciprocating saw blades that have blade teeth and where each of the other teeth is angled outward.

• The reciprocating saw can be designed to include one or more reciprocating saw blades that have blade lenses and where one or more teeth are angled and tapered.

• The reciprocating saw can be designed to include one or more reciprocating saw blades that include one or more blade separators to maintain separation of reciprocating saw blades from each other during the operation of the reciprocating saw blades.

A non-limiting object of the present invention is to provide a multiple blade reciprocating saw.

Another non-limiting and / or alternative objective of the present invention is to provide a multi-blade reciprocating saw where two or more reciprocating saw blades oscillate in opposite directions to each other.

Yet another non-limiting objective and / or alternative of the present invention is to provide a reciprocating saw that is dedicated to use with one or more reciprocating saw blades.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that improves the cutting of material by oscillating the saw blades.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that reduces vibration caused by cutting of material by reciprocating saw blades and / or reciprocating saw operation and therefore reduces User fatigue when using the reciprocating saw and / or facilitating the quality and / or accuracy of a cut in a material while using the reciprocating saw.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that improves the speed and / or accuracy of the cutting operation through a material.

Yet another non-limiting objective and / or alternative of the present invention is to provide a reciprocating saw that reduces forward / backward or recoil forces on the user when using the reciprocating saw to cut through material and thereby reduce the User fatigue when using the reciprocating saw and / or facilitating the quality and / or accuracy of the cut in a material while using the reciprocating saw.

Another non-limiting objective even more and / or alternative of the present invention is to provide a reciprocating saw reducing the pulling action caused by reciprocating saw blades during cutting operation and therefore reducing user fatigue when using reciprocating saw and / or facilitating quality and / or accuracy of a cut in a material during the use of the reciprocating saw.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that improves the accuracy of the cutting operation through the material.

Another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that provides more uniform cuts and / or less abrupt cuts through the material.

Still another and non-limiting objective of the present invention is to provide a reciprocating saw where the speed or rapidity of reciprocation of the two blades of the reciprocating saw when they oscillate in opposite directions may be the same or different.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw where the two blades of the reciprocating saw may have the same or a length, location / or shape of the teeth.

Another objective not limiting even more. and / or alternative of the present invention is to provide a reciprocating saw where the connection arrangement of the two blades of the reciprocating saw may be the same or different.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a quick connect / release arrangement for one or both of the reciprocating blades.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw whose configuration of the cutting teeth on the first and second reciprocating blades can be the same or different.

Still another and non-limiting objective of the present invention is to provide a reciprocating saw in which one or more teeth on one or both blades of the reciprocating saw are angled outwardly from the center cutting axis of the reciprocating saw to causing one or both blades of the reciprocating saw to move toward each other during cutting of material, to facilitate movement.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes gears that allow the two reciprocating saw blades swing in opposite directions at a different speed.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a laser switch to activate and / or deactivate one or more lights or lasers on the reciprocating saw.

Another still non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a shoe.

Still another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a shoe that can be tilted to allow angled cutting of the material by one or more blades of the reciprocating saw.

Another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a connector arrangement that connects the two blades of the reciprocating saw together and allows the two blades of the reciprocating saw to oscillate in the opposite directions.

Another non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a mesh arrangement that allows the user to select a plurality of stroke options for one or more reciprocating saw blades.

Another still non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw including a gear arrangement that includes an eccentric cam arrangement to allow two blades of the reciprocating saw to oscillate in opposite directions during saw operation reciprocating Another still non-limiting and / or alternative objective of the present invention is to provide a reciprocating saw that includes a handle that can rotate and / or rotate relative to the longitudinal axis of the reciprocating saw body.

These and other objects and advantages will be apparent to those skilled in the art upon reading and the following description taken with the accompanying figures.

BRIEF DESCRIPTION OF THE FIGURES Reference can now be made to the figures which illustrate several preferred embodiments that the invention can take in physical form and certain parts and arrangements of parts where: Figure 1 is a side elevation view of a non-limiting reciprocating saw including two reciprocating saw blades in accordance with the present invention; Figure 2 is an opposite side elevational view of the reciprocating saw of Figure 1; Figure 3 is a rear end view of the reciprocating saw of Figure 1; Figure 4 is a top plan view of the reciprocating saw of Figure 1; Figure 5 is a side view of another non-limiting reciprocating saw including two reciprocating saw blades and a rotary or rotatable handle according to the present invention; Figure 6 is a side view of the reciprocating saw of Figure 5 showing the handle rotated in a different position and rotated in a different position; Figure 7 is a side elevational view of the reciprocating saw of Figure 6; Figure 8 is a top elevation view of the non-limiting engagement arrangement of the reciprocating saw in accordance with the present invention; Figure 9 is the bottom elevation view of the non-limiting gear arrangement of Figure 8; Figure 10 is a bottom plan view of the non-limiting gear arrangement of Figure 8; Figure 11 is an exploded view of the non-limiting gear arrangement of Figure 8; Figure 12 is a top elevation view of the non-limiting gear arrangement of Figure 8 without the gear housing; Figure 13 is a bottom plan view of the non-limiting gear arrangement of Figure 12; Figure 14 is the top elevation view of another reciprocating saw arrangement according to the present invention; Figure 15 is a side view of the non-limiting engagement arrangement of Figure 14 without the engagement housing; Figure 16 is an exploded view of the non-limiting gear arrangement of Figure 14; Figure 17 is a top elevational view of the non-limiting gear arrangement of Figure 14 without the gear housing; Figure 18 is a front elevational top view of the non-limiting gear arrangement of Figure 14 without the gear housing and the drive gear to show the operation of the double-stroke gear arrangement during rotation in the clockwise direction of the clock; Figure 19 is a front elevational top view of the non-limiting gear arrangement of Figure 14 without the gear housing and the drive gear to show the operation of the double-stroke gear arrangement during rotation in the clockwise direction of the clock; Figure 20 is a front elevational view of the non-limiting blade disconnect arrangement according to the present invention; Figure 21 is a cross-sectional view of the blade disconnect arrangement of Figure 20; Figure 22 is a side view of the knife disconnect arrangement of Figure 20; Figure 23 is a front elevational view of a non-limiting reciprocating saw blade in accordance with the present invention; Figure 24 is a front view of the reciprocating saw blade of Figure 23; Figure 25 is a front elevational view of a non-limiting reciprocating saw blade in accordance with the present invention; Figure 26 is a front view of the reciprocating saw blade of Figure 25; Figure 27 is an enlarged side view of the blade teeth of the reciprocating saw blade of Figure 25; Y, Figure 28 is a front elevation view of another non-limiting reciprocating saw blade in accordance with the present invention.

DETAILED DESCRIPTION OF THE NON-LIMITING MODALITIES Referring now to the figures where what is Sample is for purposes of illustrating a non-limiting embodiment of the invention only and not for the purpose of limiting the same, Figures 1-28 illustrate non-limiting embodiments of the reciprocating saw in accordance with the present invention.

Figures 1-4 illustrate a non-limiting body 110 of a reciprocating saw 100 in accordance with the present invention. Figures 5-7 illustrate another non-limiting body 110 of a reciprocating saw 100 in accordance with the present invention. The two bodies of the reciprocating saw are similar; however, the non-limiting body of a reciprocating saw illustrated in Figures 5-7 has a handle or handle 130 that can rotate and rotate relative to the main body portion 120 of the reciprocating saw body. The handle 130 of the reciprocating saw body shown in Figures 1-4 is fixed and can rotate only with respect to the portion of the main body 120 of the body 110 of the reciprocating saw 100. The shape of the reciprocating saw body 100 It is not limiting. As can be appreciated, the color of the reciprocating saw and the materials used to produce the reciprocating saw are not limiting. The portion of the main body and / or the handle can be formed by one or more parts. When the main body portion and / or handle are formed of more than one part, the parts may be connected together by a variety of means (e.g., adhesive, weld joint, fusion joint, welded joint, rivet, bolt, nut and bolt, snap lock arrangement, fastening arrangement, etc.) - As illustrated in Figures 1-7, reciprocating saw 100 is designed to be a manual power tool, however, it can be appreciated that the reciprocating saw 100 can be designed to be secured to an automaton or attached to some type of machine.

Referring again to Figures 1-7, the handle 130 is designed to allow a user to hold the reciprocating saw at one end during use. The configuration of the handle is not limiting. Handle 130 may optionally include a turn button 132 that allows the handle to rotate relative to the main body portion of the reciprocating saw. As can be appreciated, the size, shape, operation and location of the button to rotate is not limiting. As can also be appreciated, the button for turning can be placed on the portion of the main body 120 instead of the handle 130. Figures 6 and 7 illustrate the handle in a rotated position. Figures 1-5 illustrate the handle in an unrotated position. The handle can be designed to rotate between two different positions or a plurality of different positions. Generally, when the handle is in an un-rotated position, it is considered that the Degree of rotation is in a position of 0 °. When the magician is designed to rotate in four positions, those positions are generally the positions of 0 °, 90 °, 180 ° and 270 °. As can be appreciated, the handle can be designed to be placed in other additional positions (eg, 30 °, 60 °, 120 °, 1540 °, 210 °, 240 °, 300 °, 330 °, etc.). the button is designed to be depressed to release a locking mechanism of the handle to thereby allow the handle to rotate to a desired position. The release or movement of the button to its original position can be designed so that as a result the handle lock in position. When the handle is designed to also rotate alternately, a spin button 134 may be located on the handle or in the position of the main body. As can be appreciated, the size, shape, operation and location of rotation are not limiting. Figure 5 illustrates the handle rotated in a slightly forward position. Figures 6 and 7 illustrate the handle rotated in a fully backward position. The handle may optionally include a slot 140 that facilitates the rotational movement of the handle; however, other additional arrangements may be used to facilitate the turning of the handle. The handle, when rotating, can be designed to move to a certain set of turning angles; however, this is not required.

The handle may optionally include a clamping surface 150 to facilitate attachment of the reciprocating saw by the user. The type of material, location of the grip on the handle, the type of grip, and the configuration of the grip are not limiting. The main body portion may optionally also include a clamping surface 126; however, this is not required. For example, all or a portion of the front portion of the main body portion of the reciprocating saw body can be covered with or include a soft fastening material and / or other type of fastening material. Such fastening material can be used to facilitate the fastening and / or guidance of the reciprocating saw during use and / or reduce vibration to the user during the use of the reciprocating saw. The fastening material on the main body portion and the handle can be made of the same or different material and / or have the same or different surface holding characteristics.

The reciprocating saw can be driven by a battery, a power supply cable, etc. When the reciprocating saw is driven by a battery, the battery can be a rechargeable battery, a removable battery, etc .; however, it is not required. One or more batteries, when used, can be located on the handle, or portion of the main body. When the reciprocating saw is driven or powered by a power supply cable 152, the power supply cable is generally connected to the handle; however, this is not required. As can be appreciated, the size, shape and location of one or more batteries when used are not limiting.

The handle generally includes a power feed button 160 which is used to activate one or more electric motors that are partially or completely located within the body of the reciprocating saw. The size, location and orientation of one or more engines in the body of the reciprocating saw is not limiting. The speed at which one or more engines operate is not limiting either. The power or power on button is usually an oppressible button. As can be appreciated, other additional types of activation (eg, slide switch, etc.) can be used to activate / deactivate one or more motors in the body of the multi-blade reciprocating saw. As can be seen, the size, shape, operation and location of the power supply button are not limiting. The power or ignition power button may be designed to vary the speed of one or more electric motors based on the amount in which the power supply button is depressed by the user; however, it is not required. Therefore, the saw reciprocating, it can be a multi-speed reciprocating saw or a single-speed reciprocating saw. A lock button 172 may optionally be placed on the handle and / or the main body portion of the reciprocating saw to prevent pressure from the power and power button and / or to lock the power feed button in a position of "switched on". As can be appreciated, the size, shape, operation, and location of the blockage are not limiting.

The handle or main body portion of the reciprocating saw may include a stroke adjustment button 174. As will be described in more detail below, the reciprocating saw may be designed to be a reciprocating saw of a single stroke or a reciprocating saw. multiple races. When the reciprocating saw is a multi-stroke reciprocating saw, a button, knob, switch or the like can be used to select the available reciprocating saw travel options. The size, shape, operation and location of the button, knob, switch, etc. on the handle or the main body portion of the reciprocating saw is not limiting. As illustrated in Figures 1-3, a stroke adjusting button 174 is located on the handle of the reciprocating saw.

The main body portion may include optionally one or more vent openings 180 to allow air flow in and / or out of the interior of the main body to allow cooling of one or more components (e.g., engine, etc.) in the main body. The number, shape and / or location of one or more ventilation openings on the main body portion of the reciprocating saw are not limiting.

A shoe 190 may be connected to the front end 122 of the main body portion, however, this is not required. The shoe, when used, can function as a position guide during material cutting. The shoe can also be used or used alternatively to protect the front end 122 from damage during cutting of material and / or to limit the amount of material entering a cavity 124 at the front end 122 of the body portion. of the reciprocating saw portion, however, this is not required. The shoe, when used, may function as a space limiter to ensure proper separation of the front end 122 of the material to be cut and / or to secure the desired blade portion of the reciprocating saw blades used to cut material; however, this is not required. As can be appreciated, the shoe can have other additional functions. The shape of the shoe is not limiting. The shoe usually includes a opening 192 or slot to allow reciprocating saw blades to pass through the shoe. The shoe can be movably connected to the front end 122 or be non-movably connected to the front end 122. The opening or slot in the shoe can be formed and / or markers can be placed around the opening or slot for operation. as a guide or as positioning elements to allow the user to cut a material at a desired location; however, this is not required. When light and / or laser is used on the reciprocating saw, the light and / or laser can be reflected to illuminate in and / or around opening or slot, however, this is not required.

The reciprocating saw may include a blade quick release button 200; however, this is not required. The blade quick release button 200, when used, may be placed near the front end of the main body portion; however, this is not required. As can be appreciated, the size, shape, and location of the blade quick release button are not limiting. In operation, the blade quick release button is typically depressed to cause the reciprocating saw blades to be unlocked and removable from the main body portion of the reciprocating saw; however, this is not required. The blade quick release button can also be designed to be squeezed to allow the reciprocating saw blades to be connected to the main body portion of the reciprocating saw; however, this is not required. The type of quick disconnect arrangement used for the blade is not limiting.

Figures 20-25 illustrate a non-limiting fast disconnect arrangement 300 that can be used. This quick disconnect arrangement is a non-limiting configuration for a toolless blade removal system that can be used with the reciprocating saw. The quick disconnect arrangement includes a housing 310 that includes two front openings 320, 330. Each front opening is designed to receive a rear portion 410, 510 or reciprocating saw blade 400, 500. The rear portion of the saw blades it may include a connecting groove 412, 512 which is designed to engage a locking claw 342, 352 of swing arms 340, 350 of the quick disconnect arrangement. The swing arms can be deflected by a spring or spring 360 or other means in a locking position as illustrated in Figure 21. The swing arms can be designed to rotate on a pivot bolt 370 or on some other means. The pivot arms may optionally include a raised rear portion 344, 354 that can be routed to be pushed down when the quick release button of Blade 200 is pressed by a user. When the raised rear portions 344, 354 of the swing arms are pushed downward, the locking jaws 342, 352 of the swing arms 340, 350 are forced to rise from the connecting slits 412, 512 of the two blades reciprocating saw, thereby allowing the reciprocating saw blades to be removed from the housing 310. As can be appreciated, the elevation of the locking jaws 342, 352 of the swing arms can also be used to allow the two blades reciprocating saw are inserted into the housing 310. Once the blades are inserted, the blade quick release button 200 is released and the spring or spring 360 causes the locking jaws 342, 352 of the swing arms 340, 350 go down to the connecting slots 412, 512 of the two reciprocating saw blades to thereby lock the two reciprocating saw blades in the housing 310 of the disconnect arrangement quick exion. As can be appreciated, other arrangements can be used to quickly connect and / or disconnect one or both of the reciprocating saw blades from the main body portion of the reciprocating saw.

As can be appreciated, it is not required to use a quick disconnect arrangement on the reciprocating saw. When a quick disconnect arrangement is not used, one or more reciprocating saw blades can be connected / disconnected from the main body of the reciprocating saw by using washers, hexagonal screws, etc., which require tools (for example, screwdriver, tweezers, wrenches, etc.) to remove and / or connect one or both of the blades of the reciprocating saw to the main body of the reciprocating saw.

The reciprocating saw may include a light or laser 400 that can be used to guide the blades of the reciprocating saw during material cutting and / or illuminate the material during material cutting. The light or laser 400 can be activated by a switch located on the handle and / or portion of the main body of the reciprocating saw. In a non-limiting arrangement, the switch is positioned below the surface of the handle and is designed to be activated and cause the light or laser 400 to illuminate when a user grasps the handle and to turn off when the user releases the handle; Nevertheless; this is not required. Alternatively, a switch 170 may be placed on the handle or portion of the main body to allow a user to manually activate / deactivate the light or laser. As illustrated in Figures 507, the switch 170 is positioned on the side of the handle. As can be appreciated, the size, shape, operation, and location of the switch 170 They are not limiting. As illustrated in Figure 3, the light or laser 400 is positioned to direct in or through the opening 192 in the shoe 190; however, this is not required. As can be appreciated, the light or laser can be placed on or under the shoe, or on the top, bottom or one or both side surfaces of the main body portion. As can be appreciated, the double reciprocating saw may include a light or laser, multiple lights, and / or multiple lasers.

As illustrated in Figures 1, 2, 4-11, and 20-28, various types of reciprocating saw blades can be used with the reciprocating saw. Different types of reciprocating saw blades can be configured to facilitate the cutting of different types of materials. Although all illustrated blades are shown as including teeth on one side of the reciprocating saw blades; It will be appreciated that the teeth can be placed on both sides of the blades of the reciprocating saw. Not only can there be a general configuration of the specially configured reciprocating saw blades, the configuration of the teeth on the blades of the reciprocating saw can also be adapted to be used in the cutting of different types of materials.

The reciprocating saw of the present invention can be used with one or two reciprocating saw blades 400, 500. When two reciprocating saw blades are used, the reciprocating saw blades may or may not be connected together. As illustrated in Figures 1, 2, and 4, the reciprocating saw blades do not connect together. As illustrated in Figures 5-11 and 20-28 the reciprocating saw blades are connected together. Many different arrangements can be used to connect the reciprocating saw blades together. A non-limiting arrangement is a bolt and slot arrangement. As illustrated in Figures 5-11 and 20-28, the reciprocating saw blade 400 includes a bolt 420 that is designed to move within a slot 520 in the reciprocating saw blade 500. Bolt 420 may include an elongated head 422 to prevent the bolt from being dislodged from the slot 520 during the operation of the reciprocating saw; however, this is not required. The slot 520 may include an elongated opening 522 to allow the bolt head to be dislodged from the slot 520; however, this is not required. One or both blades may include a separation arrangement that maintains the distance of reciprocating saw blades from each other during reciprocating saw operation, however, this is not required. Many arrangements can be used for the arrangement of spaces (for example, flange, bolt, rotary bearing, etc.), when use one or both blades of the reciprocating saw.

The configuration of the teeth 430, 530, on the blades of the reciprocating saw 400, 500, is not limiting. The reciprocating saw blades may or may not include cutting teeth. The teeth on the blades of the reciprocating saw can be located on one side or both sides of the blades of the reciprocating saw. As illustrated in Figures 24 and 26, one or more teeth on the reciprocating saw blades can be angled outwardly; however, this is not required. On a non-limiting reciprocating saw blade, each tooth is angled outwards. In another non-limiting reciprocating saw blade, every third or fourth tooth is angled outwards. As can be appreciated, the teeth can be configured on one or both reciprocating saw blades so that the teeth are angled outwardly so that a wave-like or serpent-like pattern is formed with the teeth along all or one of the teeth. portion of the longitudinal length of the reciprocating saw blade; however, this is not required. The degree to which one or more teeth are angled outward is not limiting. The degree to which different teeth are angled outward may be the same or different on each reciprocating saw blade. The configuration of the teeth and the angle of the teeth on each of the two reciprocating saw blades can be the same or different along the length of the reciprocating saw blades. Generally, the tooth tip is offset from the longitudinal axis of the reciprocating saw blade by an amount of 0.3-2.54 mm (0.001-0.1 inches), typically approximately 0.13-12.7 mm (0.005-0.5 inches), and more typical 0.13-0.76 mm (0.005-0.03 inches); however, it can be appreciated that different values can be used on the reciprocating saw blades.

As illustrated in Figure 27, a non-limiting lateral profile of a tooth configuration for one or both reciprocating saw blades is illustrated. The tooth is configured to include a cutting edge oriented forward and backward to cut both forward and backward movements of the reciprocating saw blades. The teeth have a generally V-shaped profile; however, other profiles can be used (for example, W-shaped, inverted-V-shaped, inverted W-shaped, M-shaped, etc.). The tips of the teeth shown in Figure 27 are not rounded. However, it can be appreciated that the tips of one or more of the teeth may be pointed. As illustrated in Figure 28, the side edges 432, 532 of the teeth are tapered; however, this is not required. Tapering on the front and / or lateral side edge of one or more teeth on one or more Both reciprocating saw blades can be used to 1) improve the cutting of the material by one or both reciprocating saw blades, and / or 2) create an inward force that causes one or both of the reciprocating saw blades to move one towards the other during the cutting of the material; however, this is not required. As can be appreciated, the tapered tooth can also be included in the teeth of the blade illustrated in Figures 23-27; however, this is not required. The taper, when used, can be found on the front portion of the tooth, the posterior portion of the tooth, or on both front and back portions. Figure 28 illustrates the taper on both the front and back portions of the tooth. The taper, when used, is generally located on the end side of the tooth, as illustrated in Figure 28; however, it can be seen that the taper can be located on the internal side of the tooth or on both internal and external sides of the tooth. The top edge of one or more teeth may also include tapered surfaces. The upper part of the teeth illustrated in Figure 28 is generally flat, however, it can be seen that the profile of the upper part of the teeth may have other profiles (for example, V-shaped, W-shaped, shaped). of inverted V, in inverted form, in the form of M, etc.). The height of the teeth on the blades of the reciprocating saw can be the same or different.

In a non-limiting tooth configuration for one or more of the reciprocating saw blades, one or more of the teeth have an upper edge that is angled and tapered; however, this is not required. As can be appreciated, the edge or top surface of one or more teeth may have an angled surface, a tapered surface, or both angled and tapered surfaces. The angle of the angled surface and the angle of the tapered surface are not limiting. The angled and / or tapered surface can be continuous along the entire length of the tooth, however, this is required. The angle of the angled and / or tapered surface can be constant or vary over the entire length of the tooth. For example, the angle of one or more tapers of one or more teeth relative to the longitudinal axis of the reciprocating saw blade is about 5o-70 °, generally about 10 ° -60 °, typically about 15 °. -45 °, and more preferably about 30, however, it will be appreciated, that other taper angles may be used.

In a non-limiting configuration, the angled and / or tapered surface, when used, is selected to cause one or both blades to move more toward each other when cutting through a material; Nevertheless, this is not required. That configuration can result in the elimination of a blade connector as a connector illustrated in Figure 16; however, this is not required. One or more internal surfaces of the blades may include one or more blade separators to maintain the separation of the blades from each other during the operation of the blade; however, this is not required. The number and / or shape of the blade separators, when used, is not limiting.

The intermediate teeth, not shown, can be placed between the main teeth of the reciprocating saw blades. The intermediate teeth, when used, may be taller or shorter than the main teeth.

The shape of the teeth, the tapered surface and / or the outward angulation of one or more teeth in one or both blades of the reciprocating saw is generally used to 1) improve the cutting of the material by one or both blades of the reciprocating saw , 2) make the two blades of the reciprocating saw be pushed together during cutting of the material, 3) reduce wear on one or both reciprocating saw blades when the material is cut, 4) reduce the vibration and / or action of tightening caused by one or both blades of the reciprocating saw during cutting of the material, 5) allowing one or both blades of the reciprocating saw cut material on both of the forward and return sides of one or both reciprocating saw blades, 6) balance the cutting action of the two reciprocating saw blades, 7) improve the accuracy of the cut in a material per the two blades of the reciprocating saw, 8) forming more uniform cuts through the material, 9) reducing fatigue in the user during the cutting of the material, and / or 10) facilitating the removal of the cut material during cutting of the material by one or both blades of the reciprocating saw. As can be appreciated, the tapered surface and / or the outward angulation of one or more teeth on one or both reciprocating saw blades may have other additional functions or functions.

The material used to form the reciprocating saw blades is not limiting. The front end of the blades of the reciprocating saw may be pointed, rounded, hook-shaped or have some other shape. The profile of the tooth and / or the tooth spacing may be the same along the longitudinal length of the reciprocating saw blades may vary along the longitudinal length of the reciprocating saw blades. When the teeth are located on both sides of the blades of the reciprocating saw, the configuration of the tooth may be the same or different. both sides of the reciprocating saw blades. Generally, the length, thickness, height (width), shape and material of the two blades of the reciprocating saw is the same, however, that is not required. The height (width) of one or both blades of the reciprocating saw may be constant or vary along the longitudinal length of the blades of the reciprocating saw. In a non-limiting configuration, the height (width) of both blades of the reciprocating saw varies along the longitudinal length of the blades of the reciprocating saw. As illustrated in Figures 23-25 and 28, the height (width) of the blades of the reciprocating saw is reduced at least along a portion of the longitudinal length of the blades of the reciprocating saw. The blades of the reciprocating saw in Figures 23 and 25 increase and decrease both in height (width) along the longitudinal length of the blades of the reciprocating saw.

The gear arrangement used to make one or more reciprocating saw blades oscillate is not limiting. The gear arrangement can be designed to cause one or both of the reciprocating saw blades to oscillate in a single plane, or cause one or both of the reciprocating saw blades to move in an elliptical or orbital path during the oscillation of one or both reciprocating saw blades. When two blades reciprocating saw oscillate by means of the reciprocating saw, generally both reciprocating saw blades move in the same path or plane, however, this is not required.

Figures 8-13 illustrate a non-limiting gear arrangement 700 which is for the operation of a single stroke of the reciprocating saw. Figures 14-19 illustrate a non-limiting gear arrangement 900 which is for a double or two stroke operation of the reciprocating saw.

Referring now to gear arrangement 700 illustrated in Figures 8-13, there is illustrated a motor 600 which is used to drive the novel gear in gear arrangement 700 to make one or two reciprocating saw blades 400, 500 oscillate with the motor in operation. When two reciprocating saw blades are connected to the gear arrangement, gear arrangement is designed to cause the two blades of the reciprocating saw to oscillate in opposite directions. Many different meshing arrangements can be used to make the two blades of the reciprocating saw oscillate in opposite directions. A non-limiting gear arrangement is illustrated in Figures 8-13. As illustrated in Figure 11, the engine 600 includes a housing 610 that includes brushes and a winding to make an armature 620 rotate. An engine cooling fan blade 630 can optionally be connected to the armature to cool an engine during operation. The front portion 640 of the frame may include a tapered portion 642 that includes engaging teeth, not shown. The motor is designed to make a tapered portion 642 including gear teeth, not shown. The motor is designed to make the armature turn clockwise and / or counterclockwise. The motor can be a variable speed motor; however, this is not required. Optionally a bearing and caps 650, 652 can be used to secure the rear portion of the armature in the motor housing 610. Similarly, washers, bearings and plates 660, 662, 664 can optionally be used to secure the fan blade 630 on the armor.

The gear arrangement 700 includes a main gear housing 710 and a plate housing 720 which can be connected to the main gear housing by one or more screws 730. As can be appreciated, the gear arrangement can include less than two or more. more than two hosting components. The shape and size of the accommodation components are not limiting. The materials used to form the housing components are not limiting. Generally, all components of the gear arrangement housing are located in the portion of the main body of the reciprocating saw; however, this is not required. The front portion 640 of the armature extends through an opening in the main gear housing 710. The end of the tapered end 642 of the front portion generally includes a gear region that is designed to mesh with the teeth, not shown, on main gear 740. Main gear 740 is designed to rotate about an axis that is not parallel to the axis of rotation of the frame. Generally, the axis of rotation of the armature is normal to the axis of rotation of the main gear; however this is not required. The main gear is connected to a gear shaft 750. Washers and bearings 760, 762, 764 may be used to facilitate connection to the main gear housing and / or rotational movement of the gear shaft relative to the main gear housing; however, this is not required. As can be appreciated, many different arrangements can be used to allow the main gear to rotate through the armature.

An eccentric cam 770 is designed to be connected to the main gear 740 and / or the gear shaft 750 and rotate with the main gear and the gear shaft when the frame is forced to rotate by means of the motor. The eccentric cam 770 includes first and second mounting surfaces 772, 774. The center of the eccentric cam 770 includes an opening 776 that is designed to receive a portion of the gear shaft 750. Optionally, the cam rings 780, 782 can be connected to the first and second mounting surfaces 772, 774.

The gear arrangement 700 includes an arm support housing system that includes a first support housing 790 and a second support housing 792. The first and second support housings are designed to be connected to the gear housing 710, through of the housing plate 720. One or more screws 730 or some other connection means can be used to connect the first and second support housings for receiving the plate and the engagement housing (eg, adhesive, welding bronze joint, fusion bonding, double welding, rivet, nut and bolt, clamping arrangement or pressure lock, clamping arrangement, etc.). The support housing system is designed to group and / or guide the movement of the two connecting arms 800, 810. The two connecting arms include an upper opening 802, 804 which is designed to be connected to the eccentric cam 770. The upper opening 802 of the connecting arm 800 is designed to be connected to the first mounting surface 772 of the eccentric cam 770, and the upper opening 812 of the connecting arm 810 is designed to be connected to the second one. mounting surface 774 of eccentric cam 770.

During the operation, when the eccentric cam 770 is forced to rotate by means of the motor, the eccentric cam 770 moves in a circular path. As the eccentric cam rotates, the two connecting arms 800, 810 are forced to oscillate in opposite directions to each other. The cam springs or springs 780, 782, when used, may facilitate movement of the first and second mounting surfaces 772, 774 of the eccentric cam 770 within the upper openings 802, 804. The support housing system of The arm causes the two connecting arms to move on an axis that is parallel or generally parallel to the longitudinal axis of the frame; however, this is not required.

The end of the two connecting arms 800, 810 includes a quick disconnect arrangement 300. As mentioned above, the quick disconnect arrangement is used to connect / disconnect reciprocating saw blades 400, 500 to / from the reciprocating saw.

Referring now to Figures 14-19, a non-limiting gear arrangement 900 is illustrated which is for a double-stroke operation of the reciprocating saw. An engine 600 that is used to drive a novel gear in the gear arrangement 900 to cause one or two reciprocating saw blades 400, 500 to oscillate with the engine in operation. When two reciprocating saw blades are connected to the gear arrangement, the gear arrangement is designed to cause the two blades of the reciprocating saw to oscillate in opposite directions. Many different gear arrangements can be used to make the two reciprocating saw blades swing in opposite directions. A non-limiting gear arrangement is illustrated in Figures 14-19. Gear arrangement 900 is designed to produce a different stroke length of one or two reciprocating blades depending on the rotational direction of the motor 600.

As illustrated in Figure 16, the engine 600 includes a housing 610 that includes brushes and a winding to make an armature 620 rotate. A motor cooling fan blade 630 can optionally be connected to the armature to cool the motor during operation. The front portion 640 of the frame may include a tapered portion 642 that includes meshing teeth, not shown. The motor is designed to make the armature turn in one direction in a clockwise and counterclockwise direction. The motor can be a variable speed motor, however, this is not required. A bearing and cap 650, 652 can optionally be used to secure the rear portion of the frame in the motor housing 610. Similarly, sheaves, bearings and plates 660, 662, 664 can optionally be used to secure the armature to the gear arrangement 900 via screws 666 or some other means of connection.

The gear arrangement 900 includes a main gear housing 910. As can be appreciated, the gear arrangement may include more than one housing component. The shape and size of the accommodation component are not limiting. The material used to form the housing component is not limiting. Generally, the housing component of the gear arrangement is located in the main body portion of the reciprocating saw; however, this is not required. The front portion 640 of the armature extends through an opening in the main gear housing 910. The tapered end end 642 of the front portion generally includes a gear region that is designed to mesh with the teeth, not shown, on main gear 940. Main gear 940 is designed to rotate about an axis that is not parallel to the axis of rotation of the frame. Generally, the axis of rotation of the armature is normal to the axis of rotation of the main gear; however, this is not required. The main gear is connected to the 950 gear shaft. Pulleys, bearings and bolts 960, 962, 964, 966 can be used to facilitate connection to the main gear housing and / or rotational movement to the gear shaft relative to the main gear housing; however, this is not required. As may be appropriate, many different arrangements may be used to allow the main gear to rotate through the armature.

An eccentric gear 970 is designed to be connected to the main gear 940 and rotate with the main gear when the armature is forced to rotate by means of the motor. The eccentric gear 970 includes two sets of bolt openings 972, 974 and 976, 978. The bolt openings are used to secure the first and second eccentric cams 980, 990 to the eccentric gear. The bolts 1000, 1002 are used to secure the eccentric cam 980 to the upper surface of the eccentric gear and the bolts 1004, 1006 are used to secure the eccentric cam 990 to the undersurface of the eccentric gear. The eccentric cam 980 includes an opening 982 and a slot 984. The first ends of the bolts 1000, 1002 are designed to be connected to the openings 976, 978 in the eccentric gear 970. The second end of the bolts 1000, 1002 is designed to connected to the main gear apertures 942, 944 940. The body of the bolts 1000, 1002 is designed to pass through the opening 982 and the slot 984 of the eccentric cam 980 so that the cam eccentric cam 980 is positioned between the lower surface of the main gear 940 and the upper surface of the eccentric gear 970. The eccentric cam 980 is designed to move when placed between the main gear 940 and the eccentric gear 970 as will be discussed in more detail below . The eccentric cam 990 includes an opening 992 and a slot 994. The first ends of the bolts 1004, 1006 are designed to be placed in the opening 992 and the slot 994 in the eccentric cam 990. The second end of the bolts 1004, 1006 it is designed to be connected to the openings 972, 974 of the eccentric gear 970. The eccentric cam 990 is designed to be movable relative to the eccentric gear 970 as will be discussed in more detail below.

The outer perimeter of the eccentric cam 980 is designed to be placed in the opening 1102 of the connecting arm 1100 and the outer perimeter of the eccentric cam 990 is designed to be placed in the opening 1202 of the connecting arm 1200. The end of the arm connection 1100 includes a connection opening 1104 which is used to connect the end of the connection arm 1100 to the rear end 1402 of the blade support arm 1400. A bolt 1404 may be used to secure the connection arm 1100 to the support arm of blade 1400. Similarly, the end of the concentric arm 1200 includes an opening of connection 1304 which is used to connect the end of the connection arm 1200 to the rear end 1302 of the blade support arm 1300. A bolt 1304 may be used to secure the connection arm 1200 to the blade support arm 1300.

One or more detents and connectors 1500, 1502 and 1504 may be used to hold the gears and cams of the gear arrangement in place relative to the gear housing by screws 1506 or some other additional connection means. The configuration and type of gear retainers and connectors used is not limiting. The gear arrangement 900 may include an arm support housing 1600 that is designed to be connected to the main gear housing 910 by one or more screws by one or more screws 1602 or some other additional connection means (e.g., adhesive, union with brazing, fusion bonding, weld bead, rivet, nut and screw, pressure lock arrangement, clamping arrangement, etc.). The arm support housing is designed to hold together and / or guide the movement of the two blade support arms 1300, 1400 during the oscillation of the two blade support arms, as well as to inhibit or prevent dust, debris. , or cut material, etc., between the main gear housing. Guide plates 1700, 1702 can also be used to hold together and / or guide the movement of the two blade support arms 1300, 1400 during oscillation of the two blade support arms. The guide plates may be designed to be connected to the front end of the main gear housing 910 by one or more screws 1602 or some other additional connection means (eg, adhesive, welding bronze joint, fusion joint, weld bead, rivet, nut or screw, pressure lock arrangement, clamping arrangement, etc.): however, this is not required.

The front ends of the two blade support arms 1300, 1400 can be connected to a quick disconnect arrangement 300 or some other connection arrangement that is used to secure the reciprocating saw blades 400, 500 to the two support arms of knife.

During operation, when the main gear 940 and the eccentric gear 970 are forced to rotate by means of the motor, the main gear and the eccentric gear move in a circular path. When the eccentric gear rotates, the two eccentric cams that are connected off-center to the eccentric gear are also forced to rotate. When the two eccentric cams rotate with the eccentric gear, the two connecting arms 110, 1200 are forced to oscillate in opposite directions to each other. The oscillation of the two connecting arms causes the two blade support arms 1300, 1400 to also oscillate in opposite directions to each other. The arm support housing system causes the two blade support arms to move on an axis that is parallel or generally parallel to the longitudinal axis of the frame. However, this is not required. The end of the two blade support arms may include a quick disconnect arrangement 300; however, this is not required. As mentioned above, the quick disconnect arrangement is used to connect / disconnect reciprocating saw blades 400, 500 a / of the reciprocating saw. As mentioned above, a quick disconnect arrangement is not required to be used on the reciprocating saw. When a quick disconnect arrangement has not been used, one or more reciprocating saw blades can be connected / disconnected from the main body of the reciprocating saw by means of washers, hexagonal screws, etc., which require a tool (for example, screwdriver, tweezers, wrenches, etc.) to remove and / or connect one or both blades of the reciprocating saw to the main body of the reciprocating saw.

The gear arrangement is designed to change the stroke length depending on the rotation of the frame. Figure 18 illustrates the long stroke length produced by the gear arrangement and Figure 19 illustrates the short stroke length produced by the arrangement of gears When the motor 600 causes the armature to turn in the clockwise direction, is indicated by the arrow in Figure 18, the eccentric gear 970 is forced to rotate in the counterclockwise direction, it is indicated by the arrow. The eccentric gear rotation 970 is produced in the eccentric cams 980, 990 to rotate one or more bolts while the other bolt moves with the slot 984, 994. When the motor 600 causes the armature to rotate in the opposite direction to the clockwise according to that indicated by Figure 19, the eccentric gear 970 is forced to turn in the clockwise direction, is indicated by the arrow. The rotation of the eccentric gear 970 causes the eccentric cam 980, 990 to rotate on one bolt while the other bolt moves with the groove 984, 994. The movement of the cam eccentric 980 results in the change in the length of the stroke . As illustrated in Figure 18, the eccentric cam 980 rotates to its maximum position in a clockwise direction when the eccentric gear 970 rotates counterclockwise. Although not shown, the eccentric cam 990 rotates to its maximum position in the counterclockwise direction when the eccentric gear 970 rotates in the counterclockwise direction. As illustrated in Figure 19, the eccentric cam 980 rotates to its minimum position counterclockwise when the eccentric gear 970 rotates in the clockwise direction. Although not shown, the eccentric cam 990 rotates to its minimum position in a clockwise direction when the eccentric gear 970 rotates in the clockwise direction. As can be appreciated, the engagement arrangement 900 can be modified not only so that one eccentric cam rotates relative to the eccentric gear but the other remains in position. As can be appreciated, other gear arrangements can be used to create a multi-carrier gear arrangement for a reciprocating saw.

The option of double race is a significant advantage over the reciprocating saws of a single race. A reciprocating single-stroke saw generally has a fixed stroke depth anywhere between 0.75 - 1.25 inches (1.90 - 3.17 centimeters). The reciprocating double stroke saw of the present invention can produce a first stroke length of approximately 0.6-0.8 inches (1.52-2.03 centimeters) (eg, 0.75 inches (1.90 centimeters), etc.) and a second stroke length of approximately 1 - 1.5 inches (2.54 - 3.81 centimeters) (eg, 1.25 inches (3.17 centimeters), etc.). As can be appreciated, Other race arrangements may be used for the first and / or second length of the race.

As can be appreciated, the gear arrangement 900 can be converted into a single-stroke arrangement by simply preventing the eccentric cam 980, 990 from moving relative to the eccentric gear 970. This arrangement can be accomplished by simply removing the slots 984, 994; or by removing the eccentric cams and having the connecting arms 1100, 1200 connected to the eccentric gear. As can be appreciated, other arrangements can be used to create a single race or multiple gear engagement arrangement for a reciprocating saw.

It can also be appreciated that the engagement arrangement 900 can be converted to a single-blade saw with adjustable stroke by simply removing an eccentric cam set 990, connecting arm 1200, blade support arm 1300, and miscellaneous bolts 1004, 1006 , and 1304.

In this way, it will be noted that the objectives set forth above, among those that became evident from the foregoing description, are actually achieved, and since certain changes can be made in the exposed constructions without departing from the spirit and scope of the invention, it is intended that all the material contained in the above description and shown in the accompanying figures are interpreted as illustrative and not in a limiting sense. The invention has been described with reference to preferred and alternative embodiments. The modifications and alterations will become apparent to those skilled in the art upon reading and understanding the detailed discussion of the invention provided herein. It is intended that this invention include all those modifications and alterations as long as they fall within the scope of the present invention. It should also be understood that the following claims are intended to cover all the generic and specific characteristics of the invention described herein and all the statements of scope of the invention which, as a matter of language, may be said to fall between them. The invention has been described with reference to preferred embodiments. These and other modifications of the preferred embodiments, as well as other embodiments of the invention, will be obvious from the present description, so that the above descriptive matter should be interpreted simply as illustrative of the invention and not as a limitation. It is intended to include all those modifications and alterations as long as they fall within the scope of the appended claims.

Claims

1. A reciprocating saw for cutting material, the reciprocating saw is characterized in that it comprises a body and a drive system and a gear arrangement that is at least partially positioned in the body, the drive system and the gear arrangement designed to make the first and second blades of the reciprocating saw oscillate partially or completely in opposite directions, the gear arrangement connected or interconnected to the first and second blade support arms, and the first blade of the reciprocating saw connected to the first blade support arm , and the second blade of the reciprocating saw connected to the second blade support arm, causing the gear arrangement of the first and second blade support arms to move when the drive system is activated to thereby make the first and second blade of the reciprocating saw oscillate partially or completely in opposite directions, in relation to the other, the gear arrangement designed to allow a stroke length of the first and second blades of the reciprocating saw to change, the drive system includes a single drive shaft that can rotate in the direction of the hands of the clockwise and in the counterclockwise direction, on the single drive shaft engageable to the gears, producing the rotation of the single drive shaft in the clockwise direction, a first stroke length of the first and second reciprocating saw blades, the rotation of the single drive shaft is a counterclockwise direction that it produces a second stroke length, the first and second stroke lengths being different.

2. The reciprocating saw according to claim 1, characterized in that the gear arrangement including at least one eccentric gear, at least one eccentric cam, or combinations thereof causes the first and second blades of the reciprocating saw to oscillate partially or completely in opposite directions one in relation to the other.

3. The reciprocating saw according to claim 1 or 2, characterized in that the single drive shaft is placed generally parallel to a reciprocating axis of the first and second blades of the reciprocating saw.

4. The reciprocating saw according to claim 1-3, characterized in that the gear arrangement includes an eccentric gear, first and second eccentric cams, and first and second connecting arms, the first eccentric cam including a first mounting surface, including the second eccentric cam a second mounting surface, the first connecting arm connected to the first mounting face of the first eccentric cam, the second connecting arm connected to the second mounting face of the second eccentric cam, the first and second eccentric cam forced to rotate when the eccentric gear is rotated, the first and second eccentric cams connecting the arms moving when the first and second eccentric cams rotate, the first connecting arm connected or interconnected to a first blade support arm, the second arm of connection connected or interconnected to a second blade support arm, making the movement of the connecting arms of the first and second blade connecting arms oscillate partially or completely in opposite directions relative to one another.

5. The reciprocating saw according to claim 4, characterized in that at least one of the first or second eccentric cams are connected to the eccentric and movable gear between the first and second position relative to the eccentric gear, at least one of the first or second cams eccentric mobiles to the first position when the single drive shaft rotates in a clockwise direction and movable in a second position when the single drive shaft rotates in a counterclockwise direction.

6. The reciprocating saw according to claims 1-5, characterized in that the body includes a light switch, the light switch designed to activate, deactivate, or combinations thereof, a light, a laser or a combination thereof which is placed on the body of the reciprocating saw.

7. The reciprocating saw according to claim 6, characterized in that the light switch is positioned below and away from the surface of the body and is designed to activate the light, the laser or combinations thereof when a user holds the body of the reciprocating saw when cutting material with the reciprocating saw.

8. The reciprocating saw according to claims 1-7, characterized in that it includes a rapid blade disconnection which is designed to detach, to connect combinations thereof the first reciprocating saw blade, the second reciprocating saw blade, or combinations of the same on the blade support arms on the reciprocating saw.

9. The reciprocating saw according to claims 1-8, characterized in that the plurality of teeth on the first reciprocating saw blade, the second reciprocating saw blade, or combinations thereof angulate outwards from a central cutting axis of the two reciprocating saw blades.

10. The reciprocating saw according to claims 1-9, characterized in that the body includes a handle arrangement, the handle arrangement designed to rotate relative to the longitudinal axis of the body, rotated relative to the longitudinal axis of the body or combinations thereof .

11. A reciprocating saw for cutting a material, the reciprocating saw is characterized in that it comprises a body and a drive system and a gear arrangement that is located at least partially on the body, the drive system and the arrangement of gears designed to make the first and second reciprocating saw blades oscillate partially or completely in opposite directions, the engagement arrangement is connected or interconnected to the first and second blade support arms, to the first reciprocating saw blade connected to the first blade support arm, the second reciprocating saw blade connected to the second blade support arm, the gear arrangement making the first and second blade support arms move when the drive system is activated to thereby make the first and second blades of reciprocating saw oscillate partially or completely in opposite directions one with relation to the other, including the body a light switch, the light switch designed to activate, deactivate, or combinations thereof a light, a laser or combinations thereof that is placed on the body of the reciprocating saw.

12. The reciprocating saw according to claim 11, characterized in that the light switch placed below and outside the body surface is designed to activate the light, the laser, or combinations thereof when a user grasps the body of the saw reciprocating when cutting material with the reciprocating saw.

13. The reciprocating saw according to claim 11 or 12, characterized in that the gear arrangement is designed to allow a stroke length of the first and second reciprocating saw blades to be modified, the drive system includes a single drive shaft that can be rotated clockwise or anticlockwise, the single drive shaft coupled with the gear arrangement, producing the rotation of the single drive shaft in a direction in the direction of clock hands producing a first stroke length of the first and second reciprocating saw blades, the rotation of the single drive shaft in a counter-clockwise direction producing a second stroke length with the first and second different stroke lengths being the single drive shaft being positioned generally parallel to the swing axle of the first and second reciprocating saw blades .

14. The reciprocating saw according to claims 11-13, characterized in that the gear arrangement includes an eccentric gear, first and second eccentric cams, and first and second connecting arms of the first eccentric cam including a first mounting surface, including the second eccentric cam a second mounting surface, and first connection arm connected to the first mounting face of the first eccentric cam, the second connection arm connected to the second mounting face of the second eccentric cam, the first and second eccentric cams forced to rotate when the eccentric gear is rotated, the first and second eccentric cams making the connecting arms move when the first and second eccentric cams are rotated, the first connecting arm connected to or interconnected to the first arm of the eccentric cam. blade holder, the second connecting arm connected to or interconnected to a second Azo blade holder, making the movement of the connecting arms that the first and second blade support arms swing partially or completely in opposite directions one relative to the other, at least one of the first and second eccentric cams connected to the eccentric and movable gear between the first and second position relative to the eccentric gear, at least one of the first and second movable eccentric cams to the first position when the single drive shaft rotates in a clockwise and movable direction to the second position when the single drive shaft rotates in a counterclockwise direction.

15. The reciprocating saw according to claims 11-14, characterized in that it includes a rapid blade disconnection which is designed to detach, to connect or combinations thereof the first reciprocating saw blade, the second reciprocating saw blade, or combinations thereof. the same as the blade support arms in the reciprocating saw.

16. The reciprocating saw according to claims 11-15, characterized in that a plurality of teeth on the first reciprocating blade, the second reciprocating blade, or combinations thereof are angled out from a central cutting axis of the two saw blades reciprocating

17. The reciprocating saw according to claims 11-16, characterized in that the body includes a handle arrangement, the handle arrangement designed to rotate relative to the longitudinal axis of the body, rotate relative to the longitudinal axis of the body, or combinations thereof.

18. A reciprocating saw for cutting material, the reciprocating saw is characterized in that it comprises a body and a drive system and a gear arrangement that is located at least partially on the body, the drive system and the arrangement of gears designed to make the first and second reciprocating saw blades oscillate partially or completely in opposite directions, the gear arrangement connected or interconnected to the first and second blade support arms, the first reciprocating saw blade connected to the first blade support arm, the second blade reciprocating saw connected to the second blade support arm, making the gear arrangement that the first and second blade support arms move when the drive system is activated to thereby make the first and second reciprocating saw blades oscillate partially or completely in opposite directions one in relation to the to another, the gear arrangement designed to allow a running length of the first and second oscillating saw blades to be changed, the gear arrangement includes a first and second connecting cams together along a non-central axis of each cam, and the first and second connecting arms, the first cam including a first mounting surface, the second cam including a second mounting surface, the first connecting arm connected to the second cam, first mounting face of the first cam, the second connecting arm connected to the second mounting face to the second cam, the first and second cams forced to rotate when the motor is rotated, making the first and second cams that the arms of connection are moved when the first and second cam are rotated, the first connection arm connected or interconnected to a first blade support arm, the second connection arm connected or interconnected with a second blade support arm, making the movement of the connecting arms that the first and second blade support arms oscillate partially or completely in opposite directions relative to one another.

19. The reciprocating saw according to claim 18, characterized in that the single drive shaft is placed generally parallel to a reciprocating axis of the first and second reciprocating saw blades.

20. The reciprocating saw according to claims 18 or 19, characterized in that the body includes, the light switch designed to activate, deactivating, or combinations thereof, a light, a laser or combinations thereof that is placed on the body of the reciprocating saw.

21. The reciprocating saw according to claim 20, characterized in that the light switch is positioned below and away from the surface of the body and is designed to activate the light, the laser, or combinations thereof when the user grasps the body of the the reciprocating saw when cutting material with the reciprocating saw.

22. The reciprocating saw according to claims 18-21, characterized in that it includes a rapid blade disconnection that is designed to detach, to connect combinations thereof to the first reciprocating saw blade, the second reciprocating saw blade, or combinations thereof. the same as the blade support arms on the reciprocating saw.

23. The reciprocating saw according to claims 18-22, characterized in that a plurality of teeth on the first reciprocating saw blade, the second reciprocating saw blade, or combinations thereof are angled out of a central cutting axis of the Two reciprocating saw blades.

24. The reciprocating saw in accordance with claims 18-23, characterized in that the body includes a handle arrangement, the handle arrangement designed to rotate relative to the longitudinal axis of the body, rotate relative to the longitudinal axis of the body, or combinations thereof.