CN109570625B

CN109570625B - Follow sword device and sweep-saw

Info

Publication number: CN109570625B
Application number: CN201710905073.9A
Authority: CN
Inventors: 哈利·索默; 沃伦·布朗; 格雷厄姆·格哈德
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2020-10-23
Anticipated expiration: 2037-09-29
Also published as: CN109570625A

Abstract

The invention discloses a cutter following device which comprises a cutter following plate and a pressing plate, wherein the cutter following plate comprises a connecting end used for being connected with a bottom plate of a jig saw, the pressing plate comprises a base part and a pressing part connected with the base part, and the pressing plate is movably connected with the cutter following plate, so that the distance between the pressing plate and the connecting end of the cutter following plate can be adjusted. When the cutter following device is arranged on the jig saw, a user can use the cutter following plate as a reference to calibrate the moving direction of the saw blade, so that linear machining is ensured; meanwhile, the workpiece is clamped between the bottom plate and the pressing plate, so that the workpiece can be prevented from shaking in the process of being processed, and the processing straightness is further improved; and, because the distance between the connecting end of the pressing plate and the cutter following plate is adjustable, the adjustable cutting device is suitable for workpieces with different thicknesses. The invention also provides a curve saw, which comprises a machine body, a bottom plate arranged on the machine body, a saw blade arranged on the machine body and the cutter following device, wherein the cutter following device is connected to the bottom plate.

Description

Follow sword device and sweep-saw

Technical Field

The invention relates to the technical field of power tools, in particular to a cutter following device and a jig saw.

Background

The jig saw cuts the workpiece with the saw blade to cut the workpiece apart. In practice, it is often necessary to cut a workpiece along a straight line, however, in a typical jigsaw, the user has difficulty in grasping the workpiece during the cutting process, the saw blade is easily deviated from the predetermined trajectory, and often cuts an inclined or curved edge, resulting in poor cutting quality. Meanwhile, the saw blade is in a long and narrow shape, so that the saw blade inevitably deviates and deforms under the action of external force in the cutting process, and the user is more difficult to ensure that the saw blade moves along a preset track. In addition, when cutting thin workpieces, the workpieces can also shake, making it more difficult to ensure that the saw blade moves along a predetermined trajectory.

Disclosure of Invention

Therefore, it is necessary to provide a follow-up tool device for ensuring cutting straightness against the problem that cutting straightness is difficult to ensure in the linear cutting of the jig saw.

It is also desirable to provide a jigsaw including the above heel knife device.

The utility model provides a follow sword device, includes follow cutting board and clamp plate, follow cutting board is including being used for connecting in the link of the bottom plate of jig saw, the clamp plate movably connect in follow cutting board, the clamp plate with follow cutting board the distance between the link is adjustable.

When the cutter following device is arranged on the jig saw, a user can use the cutter following plate as a reference to calibrate the moving direction of the saw blade, so that linear machining is ensured; meanwhile, the workpiece is clamped between the bottom plate and the pressing plate, so that the workpiece can be prevented from shaking in the process of being processed, and the processing straightness is further improved; and, because the distance between the connecting end of the pressing plate and the cutter following plate is adjustable, the adjustable cutting device is suitable for workpieces with different thicknesses.

In one embodiment, the pressing plate is detachably connected to the knife follower.

In one embodiment, the pressing plate comprises a base portion and a pressing portion connected to the base portion, the base portion of the pressing plate comprises a first end and a second end which are opposite, the first end is connected to the knife follower through a first connecting assembly, the first connecting assembly is fixedly connected to the knife follower, the first end is rotatably connected to the first connecting assembly, and the second end is provided with a supporting piece used for supporting the knife follower so that the pressing plate is positioned relative to the knife follower.

In one embodiment, the abutting piece comprises a connecting plate arranged on the pressing plate and a knob penetrating through the connecting plate, and the knob is used for abutting against the knife follower.

In one embodiment, the first end of the base portion of the pressing plate is connected to a first position and a second position of the knife follower via the first connecting assembly, respectively, and the first position is closer to the connecting end of the knife follower than the second position.

In one embodiment, the first connecting assembly includes a connecting seat, a fitting member movably disposed on the connecting seat, and a rotating shaft, the following cutting board is provided with a slot with an opening at one side and a fitting slot, the pressing plate is sleeved on the rotating shaft, the rotating shaft penetrates through the slot, and the fitting member can be engaged with or disengaged from the slot relative to the connecting seat.

In one embodiment, the engaging piece is provided with a buckle for engaging with the engaging groove, and the engaging groove is opened at the opening groove edge.

In one embodiment, the first connecting assembly further includes a first elastic member disposed between the connecting seat and the mating member so that the mating member can automatically return relative to the connecting seat.

In one embodiment, the knife tracking device includes two pressing plates, the second ends of the base portions of the two pressing plates are fixedly connected through a fastener, the first ends of the base portions of the two pressing plates are both connected to the first connecting assembly, and the knife tracking plate is clamped between the two pressing plates.

The utility model provides a jigsaw, includes the fuselage, locates the bottom plate of fuselage, locate the saw bit and the above-mentioned sword device of fuselage follow, follow the sword device connect in the bottom plate.

When the jig saw is used, a user can calibrate the moving direction of the saw blade by taking the cutter plate as a reference, so that linear machining is ensured; meanwhile, the workpiece is clamped between the bottom plate and the pressing plate, so that the workpiece can be prevented from shaking in the process of being processed, and the processing straightness is further improved; and, because the distance between the connecting end of the pressing plate and the cutter following plate is adjustable, the adjustable cutting device is suitable for workpieces with different thicknesses.

In one embodiment, the heel knife device is detachably connected to the bottom plate through a second connecting assembly.

In one embodiment, the second connecting assembly includes a first buckle, a second buckle and a fastener, the first buckle and the second buckle can be connected to the base plate in a mutually approaching or separating manner, the fastener connects and locks the first buckle and the second buckle, and the connecting end of the knife follower is clamped between the first buckle and the second buckle to connect the knife follower with the base plate.

In one embodiment, a fastening groove is formed in one side of the second fastener, which is close to the first fastener, the fastening groove includes a guide portion and a fastening portion which forms a certain angle with respect to the guide portion, and a lug is arranged on the knife follower, and the lug can slide into the fastening groove along the guide portion and be fastened to the fastening portion.

In one embodiment, the second connecting assembly further includes a second elastic member elastically abutted between the first catch and the second catch to apply a force to the first catch and the second catch to move away from each other.

Drawings

Fig. 1 is a first structural view of a jigsaw according to an embodiment of the present invention;

FIG. 2 is a perspective view of the heel knife device of the jigsaw shown in FIG. 1;

FIG. 3 is a front elevational view of the heel knife device illustrated in FIG. 2;

FIG. 4 is a perspective view of a pressing plate of the heel knife device shown in FIG. 2;

FIG. 5 is a partial cross-sectional view of the platen shown in FIG. 4;

FIG. 6 is another directional partial cross-sectional view of the platen shown in FIG. 4;

fig. 7 is a sectional view of the heel knife device shown in fig. 2 in a first state;

figure 8 is a cross-sectional view of a second body of the heel knife device shown in figure 2;

FIG. 9 is a structural diagram of the jigsaw of FIG. 1 in a second state;

FIG. 10 is a structural view of the jigsaw shown in FIG. 1 in a third state;

FIG. 11 is a structural view of the jigsaw shown in FIG. 1 in a fourth state;

FIG. 12 is another perspective view of the jig saw shown in FIG. 1;

FIG. 13 is an exploded view of a portion of the jigsaw shown in FIG. 12;

FIG. 14 is a first directional plan view of the second connection assembly illustrated in FIG. 13;

FIG. 15 is a second directional plan view of the second linkage assembly illustrated in FIG. 13;

fig. 16 is a view showing a state in which a fastener for fastening the heel knife device shown in fig. 12 is loosened;

FIG. 17 is a view showing the state in which the following blade device is removed from the jigsaw; and

fig. 18 is a state view of the jigsaw with the heel knife device removed.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a jigsaw according to an embodiment of the present invention includes a main body 10, a bottom plate 30 disposed on the main body 10, a saw blade 50 disposed on the main body 10, and a cutter following device 70, wherein the cutter following device 70 is connected to the bottom plate 30.

Referring to fig. 2 to 4, the following cutter device 70 includes a following cutter plate 702 and a pressing plate 704, the following cutter plate 702 includes a connecting end 7022 for connecting to the base plate 30, and the pressing plate 704 is movably connected to the following cutter plate 702 so that a distance between the pressing plate 704 and the connecting end 7022 of the following cutter plate 702 is adjustable.

When the cutter following device 70 is arranged on the jig saw, in the process of moving together with the cutter plate 702 and the saw blade 50, a user can calibrate the moving direction of the saw blade 50 by taking the cutter plate 702 as a reference so as to ensure linear processing; meanwhile, the workpiece is clamped between the bottom plate 30 and the pressing plate 704, so that the workpiece can be prevented from shaking in the process of being processed, and the processing straightness is further improved; in addition, the connecting end 7022 of the following knife plate 702 in the jig saw is connected to the bottom plate 30, and the distance between the pressing plate 704 and the connecting end 7022 of the following knife plate 702 is adjustable, namely the distance between the pressing plate 704 and the bottom plate 30 is adjustable, so that the jig saw can be suitable for workpieces with different thicknesses.

In this embodiment, the base 7042 of the pressing plate 704 includes a first end and a second end, the first end is connected to the following blade 702 through a first connecting assembly 706, the first connecting assembly 706 is fixedly connected to the following blade 702, the first end is rotatably connected to the first connecting assembly 706, and the second end is provided with a holding member 708 for holding the following blade 702, so as to position the pressing plate 704 relative to the following blade 702. Since the first end is rotatable relative to the following blade plate 702, the distance between the pressing plate 704 and the connecting end 7022 of the following blade plate 702 is adjustable.

In this embodiment, the holding member 708 includes a connecting plate 7082 disposed on the pressing plate 704 and a knob 7084 penetrating the connecting plate 7082, and the knob 7084 is used for holding the heel knife plate 702. Specifically, the knob 7084 includes a threaded portion to adjust its position relative to the attachment plate 7082 to hold or release the heel blade 702.

In this embodiment, the pressure plate 704 includes a base portion 7042 and a pressure holding portion 7044 connected to the base portion 7042.

In this embodiment, the first end of the base portion 7042 of the pressure plate 704 is removably coupled to the heel blade 702 by a first coupling assembly 706. It is understood that the pressure plate 704 may be removably attached to the heel plate 702 by other structures.

In this embodiment, the first end of the base portion 7042 of the clamping foot pressure plate 704 can be connected to the first and second positions of the heel blade 702 by the first connection assembly 706, respectively, with the first position being closer to the connection end 7022 of the heel blade 702 than the second position. By mounting the pressure plate 704 in the first position or the second position of the follower 702, the distance between the pressure plate 704 and the base plate 30 can be further adjusted to accommodate workpieces of different thicknesses.

In this embodiment, referring to fig. 5 to 8, the first connection component 706 includes a connection seat 7062, a fitting element 7064 movably disposed on the connection seat 7062, and a rotation shaft 7065, the following blade 702 is provided with a slot 7024 and a fitting slot 7026, the opening is opened at one side, the pressing plate 704 is sleeved on the rotation shaft 7065, the rotation shaft 7065 passes through the slot 7024, and the fitting element 7064 can be engaged with or disengaged from the slot 7024 relative to the connection seat 7062. When the pressing plate 704 is required to be connected with the knife follower 702, the fitting part 7064 is clamped with the slot 7024, and the pressing plate 704 can rotate relative to the knife follower 702 around the rotating shaft 7065; when the pressing plate 704 needs to be detached from the knife follower 702, the engaging piece 7064 is pressed to move relative to the connecting seat 7062, so that the engaging piece 7064 is disengaged from the slot 7024, and the pressing plate 704 can be detached from the opening of the slot 7024 of the knife follower 702. In this embodiment, the following board 702 is provided with two slots 7024 and corresponding slots 7026, so that the pressing board 704 can be connected to the first position and the second position of the following board 702 respectively.

In this embodiment, the engaging member 7064 is provided with a latch 70640 for engaging with the engaging groove 7026, and the engaging groove 7026 is opened at the edge of the slot 7024.

In this embodiment, the mating member 7064 includes a mating body 70642 and a pressing portion 70644, the mating body 70642 is accommodated in the connecting seat 7062, and the pressing portion 70644 is fixed at one end of the mating body 70642 and is exposed out of the connecting seat 7062 for pressing conveniently.

Further, the first connection assembly 706 further comprises a first elastic element 7066, wherein the first elastic element 7066 is disposed between the connection seat 7062 and the engagement element 7064 such that the engagement element 7064 can automatically return relative to the connection seat 7062. Specifically, the first elastic element 7066 is accommodated in the connecting seat 7062, and one end of the first elastic element abuts against the connecting seat 7062 and the other end abuts against the mating element 7064.

In this embodiment, the knife follower device 70 includes two pressing plates 704, the second ends of the base portions 7042 of the two pressing plates 704 are fixedly connected by a fastener 709, the first ends of the base portions 7042 of the two pressing plates 704 are both connected to the first connecting assembly 706, and the knife follower 702 is sandwiched between the two pressing plates 704.

In this embodiment, one end of the pressing portion 7044 of the pressing plate 704, which is close to the second end of the base portion 7042, is provided with a pressing end 70442, and the pressing end 70442 is used for abutting against the workpiece to press the workpiece between the pressing end 70442 and the bottom plate 30. Specifically, the clamping end 70442 is an arcuate plate.

Referring again to FIG. 1, the first end of the pressing plate 704 is connected to the first position of the follower 702, and the second end of the pressing plate 704 is rotated to the uppermost position, and the distance between the pressing plate 704 and the base plate 30 is the smallest, which may be 0mm, typically 2-3mm, and is suitable for thinner workpieces. Referring to fig. 9, a first end of the pressing plate 704 is connected to a first position of the follower plate 702, and a second end of the pressing plate 704 is rotated to a lowest position, and a distance between the pressing plate 704 and the bottom plate 30 is generally 20 mm. Referring to fig. 10, the first end of the pressing plate 704 is connected to the second position of the follower blade 702, and the second end of the pressing plate 704 is rotated to the uppermost position, and the distance between the pressing plate 704 and the bottom plate 30 is typically 20 mm. Referring to fig. 11, the first end of the pressing plate 704 is connected to the second position of the follower plate 702, and the second end of the pressing plate 704 is rotated to the lowest position, so that the distance between the pressing plate 704 and the bottom plate 30 is the largest, generally 40mm, and the pressing plate can accommodate thicker workpieces. Meanwhile, whether the first end of the pressing plate 704 is connected to the first position or the second position of the knife follower 702, the second end of the pressing plate 704 can be rotated to any position between the uppermost position and the lowermost position to accommodate a workpiece with a corresponding thickness, so that the knife follower device 70 can accommodate a workpiece with a thickness of 0-40 mm.

In this embodiment, the heel knife device 70 is detachably attached to the base plate 30. Referring to fig. 12 and 13, the follower blade device 70 is detachably connected to the base plate 30 by a second connecting assembly 90. The second connecting assembly 90 includes a first catch 902, a second catch 904, and a fastener 906, the first catch 902 and the second catch 904 are attachable to the base plate 30 to be close to or far from each other, the fastener 906 connects and locks the first catch 902 and the second catch 904, and the connecting end 7022 of the following blade 702 is clamped between the first catch 902 and the second catch 904 to connect the following blade 702 with the base plate 30. Specifically, a first opening 9022 is formed in the first buckle 902, a second opening 9042 is formed in the second buckle 904, and the first opening 9022 and the second opening 9042 are buckled to form a screw hole to be matched with the fastener 906, so that the first buckle 902 and the second buckle 904 are connected and locked.

In this embodiment, a fastening groove 9044 is formed in one side of the second fastener 904 close to the first fastener 902, the fastening groove 9044 includes a guiding portion 90442 and a fastening portion 90444 forming a certain angle with respect to the guiding portion 90442, a lug 7028 is disposed on the follower plate 702, and the lug 7028 can slide into the fastening groove 9044 along the guiding portion 90442 and be fastened to the fastening portion 90444, so that the follower plate 702 is stably connected to the bottom plate 30. Specifically, the catch 90444 can be perpendicular to the guide 90442. In this embodiment, the number of the fastening grooves 9044 and the number of the lugs 7028 are two.

In this embodiment, the first buckle 902 is provided with a plug hole 9026, and the second buckle 904 is provided with a convex pillar 9046 that can be inserted into the plug hole 9026. It can be understood that the insertion hole may also be disposed on the second buckle 904, and the protrusion 9046 is correspondingly disposed on the first buckle 902.

In this embodiment, the second connecting assembly 90 further includes a second elastic member 908, and the second elastic member 908 elastically abuts between the first latch 902 and the second latch 904 to apply a force to the first latch 902 and the second latch 904 to move away from each other.

Referring to fig. 14 and 15, when the following blade device 70 needs to be connected to the bottom plate 30, the connecting end 7022 of the following blade plate 702 connected with the pressing plate 704 is inserted between the first buckle 902 and the second buckle 904 from the guiding section 90442 of the buckle slot 9044 and is slid into the buckle section 90444, the fastener 906 is inserted into the screw hole formed by the first opening 9022 and the second opening 9042 and is screwed, that is, an external force F shown in fig. 14 and 15 is applied, and then, component forces F1 and F2 are applied to the first buckle 902 and the second buckle 904 respectively to be close, so that the following blade plate 702 is clamped. When the following blade device 70 needs to be removed, referring to fig. 16, the fastener 906 is unscrewed to release the following blade plate 702 from the first buckle 902 and the second buckle 904, then the following blade plate 702 is moved in the direction of the arrow shown in the figure to slide the lug 7028 out of the buckling part 90444 of the buckling groove 9044, and then slide out of the buckling groove 9044 along the guide part 90442 of the buckling groove 9044 to separate the following blade device 70 from the bottom plate 30, referring to fig. 17. The jigsaw with the heel knife device 70 removed can also be used as usual, as shown in fig. 18.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cutter following device is characterized by comprising a cutter following plate and a pressing plate, wherein the cutter following plate comprises a connecting end used for being connected to a bottom plate of a jig saw, the pressing plate is movably connected to the cutter following plate, and the distance between the pressing plate and the connecting end of the cutter following plate is adjustable;

the pressing plate comprises a base portion, the base portion comprises a first end and a second end which are opposite, the first end is connected with the follow cutting board through a first connecting assembly, the first connecting assembly is fixedly connected with the follow cutting board, the first end is rotatably connected with the first connecting assembly, and the second end is provided with a supporting piece used for supporting the follow cutting board so that the pressing plate is located opposite to the follow cutting board.

2. The heel knife device according to claim 1, wherein the hold down is removably attached to the heel knife plate.

3. The heel knife device according to claim 1, wherein the pressing plate comprises a pressing portion connected to the base portion, and a pressing end is provided at an end of the pressing portion of the pressing plate close to the second end of the base portion, and the pressing end is used for abutting against a workpiece to press and hold the workpiece between the pressing end and the bottom plate.

4. The follow rest device according to claim 3, wherein the abutting member comprises a connecting plate arranged on the pressing plate and a knob penetrating through the connecting plate, and the knob is used for abutting against the follow rest.

5. The heel knife device according to claim 3, wherein the first end of the base portion of the pressure plate is connected to a first position and a second position of the heel knife plate, respectively, by the first connecting assembly, the first position being closer to the connecting end of the heel knife plate than the second position.

6. The follow rest device according to claim 5, wherein the first connecting assembly comprises a connecting seat, a fitting member movably disposed on the connecting seat, and a rotating shaft, the follow rest plate is provided with a slot and a fitting groove with an opening at one side, the pressing plate is sleeved on the rotating shaft, the rotating shaft passes through the slot, and the fitting member can engage with or disengage from the fitting member and the slot relative to the connecting seat.

7. The follow blade device of claim 6, wherein the fitting member is provided with a snap for engaging with the engaging groove, and the engaging groove is opened at the grooved edge.

8. The follow blade device of claim 6, wherein the first connecting assembly further comprises a first resilient member disposed between the connecting seat and the engaging member to allow the engaging member to automatically return with respect to the connecting seat.

9. The follow rest device according to claim 3, characterized in that the follow rest device comprises two press plates, the second ends of the base parts of the two press plates are fixedly connected through a fastener, the first ends of the base parts of the two press plates are both connected to the first connecting assembly, and the follow rest plate is clamped between the two press plates.

10. A jigsaw comprising a body, a base plate disposed on the body, a saw blade disposed on the body, and a blade following device as claimed in any one of claims 1 to 9, the blade following device being connected to the base plate.

11. The jig saw as defined in claim 10, wherein said heel knife means is removably attached to said base plate by a second attachment assembly.

12. The jig saw as defined in claim 11, wherein said second connection assembly includes a first catch, a second catch and a fastener, said first catch and said second catch being connectable to said base plate either toward or away from each other, said fastener connecting and locking said first catch and said second catch, and said connecting end of said follower blade being clamped between said first catch and said second catch to connect said follower blade to said base plate.

13. The jig saw as claimed in claim 12, wherein a fastening groove is formed on a side of the second fastener adjacent to the first fastener, the fastening groove includes a guiding portion and a fastening portion forming a certain angle with respect to the guiding portion, and a lug is disposed on the follower plate, and the lug can slide into the fastening groove along the guiding portion and be fastened to the fastening portion.

14. The jig saw as defined in claim 12, wherein said second connection assembly further includes a second resilient member resiliently abutting between said first and second catches to apply a force to said first and second catches away from each other.