CN209125025U - A kind of saw bow and handsaw - Google Patents
A kind of saw bow and handsaw Download PDFInfo
- Publication number
- CN209125025U CN209125025U CN201821882065.3U CN201821882065U CN209125025U CN 209125025 U CN209125025 U CN 209125025U CN 201821882065 U CN201821882065 U CN 201821882065U CN 209125025 U CN209125025 U CN 209125025U
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- CN
- China
- Prior art keywords
- slot
- saw blade
- bow
- hold
- saw
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of saw bow and handsaws.The saw bow includes the handle for bending body and bow body rear end being arranged in, the rear and front end of bow body is respectively provided with front end through slot, rear end through slot that front and back installs saw blade, the front end through slot has the slot bottom for pressing saw blade leading portion back side, it is equipped in the rear end through slot and is used to support the pin shaft that saw blade has flank, it further include the hold-down bolt for being used to press saw blade back side being set on bow body, the hold-down bolt is set to the rear side of bow body rear end through slot and the pin shaft, and the axis time interval of pin shaft and hold-down bolt is arranged；The pin shaft is used to form the lever construction using saw blade as the arm of force, pin shaft for fulcrum with the saw blade installed on saw bow, so that the hold-down bolt applies positive torque to saw blade back segment and the slot bottom of the front end through slot is made to apply opposing torque to saw blade leading portion.Compared with the prior art, the saw bow of the utility model is higher to the fixing intensity of saw blade.
Description
Technical field
The utility model relates to a kind of saw bow and handsaws.
Background technique
Saw bow is the tool for installing and being tensioned saw blade, and relatively common having is fixed and two kinds adjustable, regardless of which
Kind mode all uses the structure type of shelf substantially, and one end of conventional shelf is equipped with fixing head, the other end is equipped with active chuck,
Two collets are inserted into the end of shelf by respective square tenon, are respectively equipped with saw blade mounting in the opposite end of two collets
Pin, saw blade are hung between the articulated pin of two saw blades by the connecting hole at its both ends, are fixed in the square tenon of active chuck
Screw rod, screw thread is installed with wing nut on screw rod, and the tensioning of saw blade may be implemented by wing nut.But it is complete for sawtooth
Good saw blade segments, the saw blade segments being especially broken, it is difficult to be used cooperatively with conventional saw bow, there are problem of resource waste.
For this purpose, a kind of saw bow is provided in the prior art, as shown in Figure 1, the saw bow includes bow body 1 and is arranged after bending body
The handle 2 at end, bow body 1 rear and front end be respectively equipped with for assemble saw blade the front end through slot 1a extended along the longitudinal direction, after
Through slot 1b is held, the groove depth of front end through slot 1a is less than the width of saw blade 5, and the groove width of front end through slot 1a is slightly larger than the thickness of saw blade；
The groove depth of rear end through slot 1b is greater than the width of saw blade, and the width of rear end through slot 1b is slightly larger than the thickness of saw blade.In the through slot 1b of rear end
Downside have and be used to support the pin shaft 3 that saw blade has flank, bow body 1 is threaded with hold-down bolt 4 on rear side of the through slot of rear end,
Pin shaft 3 is located on the axis of hold-down bolt 4.Handle 2 is hollow structure, and when installing saw blade 5, saw blade 5 is put into the through slot 1a of front end,
It is inserted into the through slot 1b of rear end, and is inserted into hollow handle 2 simultaneously.By screwing the i.e. compressible saw blade of hold-down bolt 4.
The saw bow can be used cooperatively with the saw blade segments (such as saw blade segments of fracture) of random length, avoid saw blade segments
Waste.But the pin shaft 3 of the saw bow is located on the axis of hold-down bolt 4, saw blade is more to be compacted bolt 4 to be pressed on
It realizes and fixes on pin shaft 3, to likely make that saw blade leading portion and bend the slot bottom of front end through slot 1a of body 1 there are gaps；
In use process saw blade can due to up and down motion easy fracture.
Utility model content
The purpose of this utility model is to provide a kind of saw bows, it is intended to solve steady on the saw bow of saw blade segments in the prior art
Qualitative difference and the problem of easy fracture；The purpose of this utility model, which also resides in, provides a kind of handsaw, it is intended to solve in existing handsaw
Saw blade segments are not fixed firmly and the problem of easy fractures.
To achieve the above object, the technical solution of the saw bow of the utility model is:
Saw bow includes the handle for bending body and bow body rear end being arranged in, and the rear and front end for bending body is respectively provided with front and back and wears
Front end through slot, the rear end through slot of saw blade are filled, the front end through slot has the slot bottom for pressing saw blade leading portion back side, the rear end
It is equipped in through slot and is used to support the pin shaft that saw blade has flank, further include the compression for being used to press saw blade back side being set on bow body
Bolt, the hold-down bolt are set to the rear side of bow body rear end through slot and the pin shaft, and before the axis of pin shaft and hold-down bolt
Interval setting afterwards；The pin shaft is used to form the lever knot using saw blade as the arm of force, pin shaft for fulcrum with the saw blade installed on saw bow
Structure, so that the hold-down bolt applies positive torque to saw blade back segment and applies the slot bottom of the front end through slot to saw blade leading portion
Add opposing torque.
Beneficial effect is: the pin shaft being mounted on the saw blade and saw bow on the saw bow of the utility model forms lever knot
Structure, hold-down bolt applies positive torque to saw blade back segment, the slot bottom of front end through slot applies opposing torque to saw blade leading portion.Saw blade exists
It is secured firmly on saw bow under the action of hold-down bolt and front end through slot, compared with the prior art, the saw bow pair of the utility model
The fixing intensity of saw blade is high.
Further, the bow body includes being used to install hold-down bolt between the handle on rear side of the through slot of rear end
Mounting base, the pin shaft is in the downside in the through slot of rear end, and the mounting base is in the top of rear end through slot, the mounting base
Be equipped with the perforation that cooperation is moved up and down with the hold-down bolt that extends up and down, the hold-down bolt be installed in perforation and under
End is threaded with the nut for driving hold-down bolt to move up and down.It drives hold-down bolt to move up and down by nut to compress
Saw blade, convenient for setting while being conveniently adjusted.
Further, the lower end of the hold-down bolt is equipped with the limit for preventing saw blade from moving up that front and back extends
Slot.On the one hand setting limiting slot prevents saw blade from moving up, put hold-down bolt linearly operating when rotating nut
Pine and compression saw blade.
Further, bow body front end through slot, rear end through slot are staggered and the top arrangement of front end through slot in the up-down direction.
Using the design so that the saw blade being installed on saw bow oliquely downward extends from front to back, convenient for operation.
Further, the handle is downward opening U-shaped structure, and is located at the upside of rear end through slot.Convenient for manipulator
It avoids handle while handle saw blade is caused to interfere.
The technical solution of the handsaw of the utility model is:
Handsaw includes saw bow and the saw blade that is fixedly connected on saw bow, and the saw bow includes bow body and is arranged after bending body
The handle at end, the rear and front end for bending body are respectively provided with front end through slot, rear end through slot that front and back installs saw blade, and the front end is logical
Slot has the slot bottom for pressing saw blade leading portion back side, is equipped in the rear end through slot and is used to support the pin shaft that saw blade has flank,
The saw bow further includes the hold-down bolt for being used to press saw blade back side being set on bow body, and the hold-down bolt is set to bow body
The rear side of rear end through slot and the pin shaft, and the axis time interval of pin shaft and hold-down bolt is arranged；The pin shaft and saw blade-shaped
At being the lever construction of fulcrum by the arm of force, pin shaft of saw blade, so that the hold-down bolt applies positive torque, simultaneously to saw blade back segment
The slot bottom of the front end through slot is set to apply opposing torque to saw blade leading portion.
The beneficial effect is that: the pin shaft on the saw blade and saw bow in the handsaw of the utility model forms lever construction, pressure
Tight bolt applies positive torque to saw blade back segment, the slot bottom of front end through slot applies opposing torque to saw blade leading portion.Saw blade is compressing
It is secured firmly on saw bow under the action of bolt and front end through slot, compared with the prior art, the saw in the handsaw of the utility model
Fixing intensity is higher.
Further, the bow body includes being used to install hold-down bolt between the handle on rear side of the through slot of rear end
Mounting base, the pin shaft is in the downside in the through slot of rear end, and the mounting base is in the top of rear end through slot, the mounting base
Be equipped with the perforation that cooperation is moved up and down with the hold-down bolt that extends up and down, the hold-down bolt be installed in perforation and under
End is threaded with the nut for driving hold-down bolt to move up and down.It drives hold-down bolt to move up and down by nut to compress
Saw blade, convenient for setting while being conveniently adjusted.
Further, the lower end of the hold-down bolt is equipped with the limit for preventing saw blade from moving up that front and back extends
Slot.On the one hand setting limiting slot prevents saw blade from moving up, put hold-down bolt linearly operating when rotating nut
Pine and compression saw blade.
Further, bow body front end through slot, rear end through slot are staggered and the top arrangement of front end through slot in the up-down direction.
Using the design so that the saw blade being installed on saw bow oliquely downward extends from front to back, convenient for operation.
Further, the handle is downward opening U-shaped structure, and is located at the upside of rear end through slot.Convenient for manipulator
It avoids handle while handle saw blade is caused to interfere.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of saw bow in the prior art；
Fig. 2 is the structural schematic diagram of the saw bow of the utility model；
State diagram when Fig. 3 is the saw bow and fixed saw blade leading portion of the utility model；
State diagram when Fig. 4 is the saw bow and fixed saw blade back segment of the utility model；
Fig. 5 is the top view at the pin shaft in Fig. 2；
Fig. 6 is the left view at the pin shaft in Fig. 2；
Fig. 7 is the structural schematic diagram at the pin shaft in Fig. 2；
In figure: 1- bends body；The front end 1a- through slot；The rear end 1b- through slot；2- handle；3- pin shaft；4- hold-down bolt；5- saw blade；
6- bends body；The front end 6a- through slot；The rear end 6b- through slot；7- handle；8- mounting base；9- hold-down bolt；10- nut；11- limiting slot；
12- pin shaft；13- saw blade；14- pin sleeve.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment one of the saw bow of the utility model, as shown in Fig. 2, including bending body 6 and being arranged in bend 6 rear end of body
Handle 7.
The rear and front end of bow body 6 is respectively provided with the front end through slot 6a and rear end through slot 6b that saw blade is installed for front and back.Wherein,
The depth of front end through slot 6a is less than the width of saw blade 13, and the width of front end through slot 6a is slightly larger than the thickness of saw blade 13；Rear end through slot
The depth of 6b is about 1.5 times to 2 times of 13 width of saw blade；The width of rear end through slot 6b is slightly larger than the thickness of saw blade 13.Other realities
It applies in example, the depth of front end through slot 6a can also be equal or slightly larger than the width of saw blade 13.Pin shaft is provided in the through slot 6b of rear end
12, pin shaft 12 is located at the downside of rear end through slot 6b, and the distance between the upper end of pin shaft 12 and rear end through slot 6b slot bottom are greater than saw blade
13 width.
Bend body 6 and the rear end of rear end through slot 6b and pin shaft 12 are provided with mounting base 8, and mounting base 8 is in rear end through slot 6b
Upside.The perforation vertically extended is provided in mounting base 8, the perforation in the present embodiment is unthreaded hole, is installed in perforation
There is hold-down bolt 9, is staggered before and after the axis and pin shaft 12 of hold-down bolt 9.The lower thread of hold-down bolt 9 is connected with nut 10,
Hold-down bolt 9 is driven to move up and down by screw on nut 10.The lower end of hold-down bolt 9 is provided with the limit extended along the longitudinal direction
Slot 11 prevents 13 uplink of saw blade, the width of limiting slot 11 is slightly larger than the thickness of saw blade 13 for limiting with 13 block of saw blade.
The handle 7 that bow 6 rear end of body is arranged in is in U-shape structure, and the opening down and upper end of U-shaped handle 7 is located at rear end through slot
The upside of 6b, in this way setting help avoid handle 7 and interfere with saw blade 13, while playing the work of protection operator's both hands
With.
As shown in Figure 3, Figure 4, front end through slot 6a and rear end through slot 6b are staggered in the up-down direction, and rear end through slot 6b is located at
The downside of front end through slot 6a, so that the saw blade 13 being installed in front end through slot 6a and rear end through slot 6b is in the longitudinal direction obliquely
Extend, facilitates operator to avoid saw blade while holding handle operation and interfered with handle 7.
Pin shaft 12 is usually metal material, and what this allowed for the saw blade 13 being pressed on pin shaft 12 has flank easy to damage.For
This is arranged with pin sleeve 14 as shown in Fig. 5, Fig. 6, Fig. 7 on pin shaft 12, pin sleeve 14 is made of soft material, and soft material can
To select such as rubber, rigid plastics, copper.
The saw bow of the utility model is in use, saw blade 13 is installed in front end through slot 6a and rear end through slot 6b, compression spiral shell
The limiting slot and saw blade block of bolt cooperate, and screw on nut is to drive hold-down bolt to move down compression saw blade；In the process, it presses
Tight bolt 9 applies positive torque to 13 back segment of saw blade, the slot bottom of front end through slot 6a applies opposing torque to 13 leading portion of saw blade, is formed
Be the arm of force with saw blade 13, pin shaft 12 for fulcrum lever construction.
It is in place of the specific embodiment two of the saw bow of the utility model, with the difference of saw bow embodiment one, the present embodiment
In mounting base on perforation be the screw hole being adapted to hold-down bolt, occur with bow body relative movement when hold-down bolt rotates and incite somebody to action
Saw blade compresses, similar to the compacted form of the hold-down bolt in background technique.Other are the same as example 1, and repeat no more.
It is in place of the specific embodiment three of the saw bow of the utility model, with the difference of saw bow embodiment one, the present embodiment
In front end through slot and rear end through slot corresponding arrangement in the up-down direction, other are the same as example 1, and repeat no more.
It is in place of the specific embodiment four of the saw bow of the utility model, with the difference of saw bow embodiment one, in this implementation
Hold-down bolt axis and pin shaft before and after be staggered, and oliquely downward extend, other are the same as example 1, and repeat no more.
The specific embodiment of the handsaw of the utility model, including saw bow and the saw blade that is fixed on saw bow, in the present embodiment
Saw bow it is identical as the structure of the saw bow in the various embodiments described above, repeat no more.
Claims (10)
1. saw bow, including bending body and the handle of bow body rear end being arranged in, the rear and front end for bending body is respectively provided with front and back and wears
Front end through slot, the rear end through slot of saw blade are filled, the front end through slot has the slot bottom for pressing saw blade leading portion back side, the rear end
It is equipped in through slot and is used to support the pin shaft that saw blade has flank, further include the compression for being used to press saw blade back side being set on bow body
Bolt, it is characterised in that: the hold-down bolt is set to the rear side of bow body rear end through slot and the pin shaft, and pin shaft and compression spiral shell
The axis time interval of bolt is arranged；It is branch that the pin shaft, which is used to be formed with the saw blade installed on saw bow by the arm of force, pin shaft of saw blade,
The lever construction of point, so that the hold-down bolt applies positive torque to saw blade back segment and makes the slot bottom pair of the front end through slot
Saw blade leading portion applies opposing torque.
2. saw bow according to claim 1, it is characterised in that: the bow body includes being set on rear side of the through slot of rear end and the hand
The mounting base for being used to install hold-down bolt between handle, the pin shaft are in the downside in the through slot of rear end, and the mounting base is in
The top of rear end through slot, the mounting base are equipped with the perforation that cooperation is moved up and down with the hold-down bolt extended up and down, institute
State that hold-down bolt is installed in perforation and lower thread is connected with nut for driving hold-down bolt to move up and down.
3. saw bow according to claim 2, it is characterised in that: the lower end of the hold-down bolt is equipped with being used for for front and back extension
The limiting slot for preventing saw blade from moving up.
4. saw bow according to claim 2 or 3, it is characterised in that: bow body front end through slot, rear end through slot are in upper and lower
It is staggered and the top arrangement of front end through slot upwards.
5. saw bow according to claim 2 or 3, it is characterised in that: the handle is downward opening U-shaped structure, and position
In the upside of rear end through slot.
6. handsaw, including saw bow and the saw blade being fixedly connected on saw bow, the saw bow includes bow body and is arranged after bending body
The handle at end, the rear and front end for bending body are respectively provided with front end through slot, rear end through slot that front and back installs saw blade, and the front end is logical
Slot has the slot bottom for pressing saw blade leading portion back side, is equipped in the rear end through slot and is used to support the pin shaft that saw blade has flank,
The saw bow further includes the hold-down bolt for being used to press saw blade back side being set on bow body, it is characterised in that: the compression spiral shell
Bolt is set to the rear side of bow body rear end through slot and the pin shaft, and the axis time interval of pin shaft and hold-down bolt is arranged；It is described
It is the lever construction of fulcrum that pin shaft and saw blade, which are formed by the arm of force, pin shaft of saw blade, so that the hold-down bolt applies saw blade back segment
Add positive torque and the slot bottom of the front end through slot is made to apply opposing torque to saw blade leading portion.
7. handsaw according to claim 6, it is characterised in that: the bow body includes being set on rear side of the through slot of rear end and the hand
The mounting base for being used to install hold-down bolt between handle, the pin shaft are in the downside in the through slot of rear end, and the mounting base is in
The top of rear end through slot, the mounting base are equipped with the perforation that cooperation is moved up and down with the hold-down bolt extended up and down, institute
State that hold-down bolt is installed in perforation and lower thread is connected with nut for driving hold-down bolt to move up and down.
8. handsaw according to claim 7, it is characterised in that: the lower end of the hold-down bolt is equipped with being used for for front and back extension
The limiting slot for preventing saw blade from moving up.
9. handsaw according to claim 7 or 8, it is characterised in that: bow body front end through slot, rear end through slot are in upper and lower
It is staggered and the top arrangement of front end through slot upwards.
10. handsaw according to claim 7 or 8, it is characterised in that: the handle is downward opening U-shaped structure, and position
In the upside of rear end through slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882065.3U CN209125025U (en) | 2018-11-15 | 2018-11-15 | A kind of saw bow and handsaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882065.3U CN209125025U (en) | 2018-11-15 | 2018-11-15 | A kind of saw bow and handsaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209125025U true CN209125025U (en) | 2019-07-19 |
Family
ID=67245343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821882065.3U Expired - Fee Related CN209125025U (en) | 2018-11-15 | 2018-11-15 | A kind of saw bow and handsaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209125025U (en) |
-
2018
- 2018-11-15 CN CN201821882065.3U patent/CN209125025U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190719 Termination date: 20211115 |