TWM522119U - Fast-replacement type carpenter plain chisel - Google Patents

Description

Quick change woodworking flat drill

This work is about a quick-change woodworking flat drill, which mainly refers to a woodworking flat drill that can reduce inventory and have better carrying convenience and reduce the cost of replacement.

The conventional wood material has a special wooden texture, and the drilling operation generally uses a flat drill for woodworking. The flat drill 1' is shown in Fig. 7, and has a rod portion 11' and a drill portion 12'. The 11' position is turned into a normalized polygonal body to provide engagement with an external tool (not shown), and the drill portion 12' has a main cutting portion 121', and a sharp drill guide is protruded in the center of the main cutting portion 121'. In the lead portion 122', the front end portion 123' is provided at the front end of the main cutting portion 121'. When the drilling operation causes the flat drill 1' to rotate, the guiding portion 122' of the drill portion 12' can be drilled before the wood. Then, the main cutting portion 121' is screwed into the wood for drilling work.

The aperture of the first drill 1' borehole corresponds to the width W' of the main cutting portion 121'. Therefore, when a plurality of recessed holes of different apertures are to be drilled on the wood, the flat drill 1' corresponding to the different aperture diameters must be prepared, resulting in an increase. Inconvenience is inconvenient for inventory and travel.

In addition, the rod portion 11' and the drill portion 12' of the flat drill 1' are made of the same material, and the flat drill 1' is made of a lower hardness material (such as medium and low carbon steel) to reduce the cost, resulting in the hardness of the drill portion 12'. Reduced, it will be easy to wear after a period of use, and the entire flat drill must be replaced 1', which has a high cost.

The purpose of this creation is to provide a woodworking flat drill that reduces inventory and provides better carrying convenience.

The present invention comprises a rod body, a drill body and a joint device, wherein the rod body can be engaged with an external tool; and the drill body has two wide sides which are relatively perpendicular to the axial direction, a cutting portion at the front and a rear portion at the cutting portion. The plugging portion has a positioning hole perpendicular to the wide surface; the connecting device comprises a connecting seat, an actuating lever, a button and an elastic component, wherein the connecting seat has an outer ring wall and front and rear ends a joint at the rear of the joint, which can be engaged with the front end of the rod body; and a front end of the joint seat is axially disposed with a socket recessed by the front end wall into the insertable portion of the drill body; The first recess and the second recess are respectively disposed on the side, and the second recess is disposed at a position corresponding to the first recess to provide a first through hole communicating with the first recess. a second perforation; the actuating rod is disposed at the second concave portion, and the first and second perforating positions are respectively disposed to respectively insert one of the first and second perforated binding columns and a positioning column, and the binding column and the positioning column are connected by a connection Linked to the pole; the button is located at A recess position, and interlocking engagement with the binding posts; and the elastic member may provide a button and actuating lever actuating elastic, and the positioning post engageable by the elastic force of the positioning hole elastic member of, and presses the button to make positioning post departing from the positioning hole.

Further, the rear end of the plug portion is provided with a guide bevel which is inclined toward the center of the rear; and the positioning post of the actuating rod has a guide bevel which is gradually raised from the front to the rear and can abut against the guide bevel.

Further, the rod body is a polygonal body, and after the joint is connected, the joint portion has a polygonal groove recessed from the rear end wall into the front end of the pluggable rod body and interlocked with the rod body, and the outer side of the first concave portion of the joint seat The first opening has a first bottom wall on one side of the first opening, and a retaining edge protrudes from the inner wall of the first recess, and a button displacement distance is provided between the retaining edge and the first opening, and the The button covers the first opening.

Further, the second recess of the connecting seat has a second opening, and further comprises a cover plate, the cover plate can cover the second opening, and a hook body engageable with the connecting rod portion of the actuating lever is disposed on the inner side.

The insertion portion of the created drill body can be inserted into the socket of the joint seat, and the positioning hole can be inserted into the positioning hole by the elastic force of the elastic member to position the drill body on the joint seat when the positioning hole position corresponds to the positioning column. In order to replace the different sizes or forms of the drill body, the button can be pressed and the combination column of the action rod and the positioning column can be radially displaced, and the positioning column can be separated from the positioning hole, so that the insertion portion of the drill body can be pulled out of the socket. And assembling another drill body, it can be easily replaced.

The detailed description of the present invention will be more clearly apparent from the following detailed description.

Referring to Figures 1 to 6, the creation includes a rod body 1, a drill body 2, and a coupling device 3. The rod body 1 is a polygonal body, and the rear portion can be engaged with an external tool (not shown); The flat body has two wide faces 21 which are perpendicular to the axial direction, and has a cutting portion 22 at the front, and a cutting portion 23 at the rear of the cutting portion 22, and the front end of the cutting portion 22 protrudes toward the front to guide the guiding portion 221, cutting A tip end portion 222 is protruded from the front side of the portion 22 corresponding to the wide surface 21, and the insertion portion 23 has a width smaller than the cutting portion 22, and has a positioning hole 231 perpendicular to the wide surface 21, and is disposed rearward at the rear end of the insertion portion 23. The central inclined bevel 232.

The connecting device 3 includes a connecting base 31, an actuating lever 32, a cover plate 33, a button 34, and an elastic member 35. The connecting seat 31 is a cylindrical body having an outer ring wall 311 and front and rear end walls 312. 313. A polygonal slot 314 is defined in the rear of the connecting base 31 by the rear end wall 313 recessed into the front end of the pluggable rod body 1 and interlocked with the rod body 1. The front side of the connecting base 31 is axially disposed and recessed by the front end wall 312. The insertion hole 315 of the insertion portion 23 of the drill body 2 can be inserted; and the first and second concave portions 316 and 317 recessed by the outer ring wall 311 are respectively disposed on the radially opposite sides of the connection seat 31, and the first concave portion is further disposed. 316 has a first opening 3161 on the outer side, the first opening 3161 has a first bottom wall 3162 on one side, and a retaining edge 3163 protrudes from the inner wall of the first recess 316, and the gap between the retaining edge 3163 and the first opening 3161 The second recess 317 has a second opening 3171 on the outside, the second recess 3171 has a second bottom wall 3172 on the opposite side, and the second bottom wall 3172 of the second recess 317 corresponds to the first recess 316. The first hole 318 is connected to the first recess 316, and the second recess 317 is disposed corresponding to the socket 315 corresponding to the socket 315. The second bore 319.

The actuating rod 32 is disposed at the position of the second recessed portion 317, and the first and second through holes 318 and 319 are respectively disposed to respectively insert the first and second through holes 318, 319, the binding post 321 and a positioning post 322, and the binding post 321 and One end of the positioning post 322 is connected by a connecting rod portion 323, and the binding post 321 has a coupling end 324 at one end of the connecting rod portion 323, and the positioning post 322 has a height from the front to the rear with respect to the end of the connecting rod portion 323 and can be The guide bevel 232 abuts the oblique guide bevel 325.

The cover plate 33 covers the second opening 3171, and a hook body 331 that can be engaged with the link portion 323 of the actuating lever 32 is disposed on the inner side.

The button 34 is disposed at the position of the first recess 316 and can cover the first opening 3161, and a slot 341 which can be engaged with the joint end 324 of the coupling rod 321 of the actuating rod 32 is disposed at the center of the inner surface.

The elastic member 35 is disposed in the first recess 316 and can provide the button 34 and the actuating lever 32 to be elastically elastic. The elastic member 35 is a telescopic spring, and the two ends are respectively opposite to the inner surface of the button 34 and the first bottom wall of the first recess 316. 3162 arrived.

The connecting seat 31 of the present invention can be assembled with a drill body 2 of a suitable form and size according to requirements. When assembled, the plug portion 23 of the drill body 2 can be inserted into the socket 315 of the connecting seat 31, and the plug is inserted as shown in FIG. The beveled portion 232 of the joint 23 can abut against the guide bevel 325 of the positioning post 322 such that the positioning post 322 can be radially displaced away from the receptacle 315 and compress the resilient member 35 (not shown).

As shown in FIG. 4 and FIG. 5, when the insertion portion 23 is continuously inserted to position the positioning hole 231 corresponding to the positioning post 322, the positioning post 322 can be inserted into the positioning hole 231 by the elastic force of the elastic member 35, and the drill body can be positioned. 2, the button 34, the cover 33 can cover the first and second openings 3161, 3171 respectively to have the overall texture of the preferred combination, and the socket 314 and the rod 1 of the joint 31 Connected, and the rod 1 can be engaged with an external tool (not shown) for woodworking drilling.

Referring to FIG. 5 and FIG. 6 , when the body 2 is to be replaced with different sizes or forms of the drill body 2, the button 34 can be pressed. The retaining edge 3163 of the first recess 316 can limit the pressing depth of the button 34, and the button 34 can be provided with the actuating rod 32. The binding post 321 and the positioning post 322 are radially displaced, and the positioning post 322 can be disengaged from the positioning hole 231, so that the insertion portion 23 of the drill body 2 can be pulled out of the insertion hole 315 and the other drill body 2 can be assembled. The design change function ensures that the drill body 2 does not automatically eject toward the front when the button 34 is pressed, and the guiding portion 221 and the tip end portion 222 can be prevented from stabbing the human body, and the operation safety can be improved.

Therefore, according to the above, this creation can provide woodworking flat drills to reduce inventory and carry out when carrying out without having to carry many flat drills at the same time, and the drill body does not need to replace the whole flat drill when worn, which can be more environmentally friendly and saves replacement. The cost effectiveness, and the created drill body can be made of a better hardness material than the rod body, and the foregoing implementation has been described, and many modifications and changes are still possible without exceeding the scope of the creative technology. The scope defines the scope of the attached patent application.

1‧‧‧ rod body
2‧‧‧ drill body
21‧‧‧Face
22‧‧‧cutting department
221‧‧‧ guiding section
222‧‧‧ tip
23‧‧‧ Sockets
231‧‧‧Positioning holes
232‧‧ ‧ oblique bevel
3‧‧‧Linking device
31‧‧‧ link
311‧‧‧ outer ring wall
312‧‧‧ front wall
313‧‧‧ Rear wall
314‧‧‧ slots
315‧‧‧ jack
316‧‧‧ first recess
3161‧‧‧ first opening
3162‧‧‧ first bottom wall
3163‧‧‧ blocking edge
317‧‧‧Second recess
3171‧‧‧ second opening
3172‧‧‧ second bottom wall
318‧‧‧First perforation
319‧‧‧Second perforation
32‧‧‧Action rod
321‧‧‧ binding column
322‧‧‧Positioning column
323‧‧‧Links
324‧‧‧ joint end
325‧‧‧ guiding slope
33‧‧‧ cover
331‧‧‧
34‧‧‧ button
341‧‧‧Slots
35‧‧‧Flexible components
1'‧‧‧ flat drill
11'‧‧‧ pole
12'‧‧‧Drill Department
121'‧‧‧Main cutting department
122'‧‧‧ guiding section
123'‧‧‧ tip
W'‧‧‧Width

Figure 1 is an exploded view of the creation.

Figure 2 is another exploded view of the creation.

Figure 3 is a cross-sectional view of the combined action of the joint and the drill body of the present invention, showing the unjoined state of the positioning hole and the positioning post.

Figure 4 is a cross-sectional view of the combination of the joint and the drill body of the present creation.

Figure 5 is a perspective view of the combination of the joint and the drill body of the present creation.

Figure 6 is a schematic diagram of the design pressing button to disengage the positioning post from the positioning hole.

Figure 7 is a schematic diagram of a conventional woodworking flat drill.

1‧‧‧ rod body

2‧‧‧ drill body

21‧‧‧Face

22‧‧‧cutting department

221‧‧‧ guiding section

222‧‧‧ tip

23‧‧‧ Sockets

231‧‧‧Positioning holes

232‧‧ ‧ oblique bevel

3‧‧‧Linking device

31‧‧‧ link

311‧‧‧ outer ring wall

312‧‧‧ front wall

315‧‧‧ jack

316‧‧‧ first recess

3161‧‧‧ first opening

3162‧‧‧ first bottom wall

318‧‧‧First perforation

3163‧‧‧ blocking edge

319‧‧‧Second perforation

32‧‧‧Action rod

321‧‧‧ binding column

322‧‧‧Positioning column

323‧‧‧Links

324‧‧‧ joint end

325‧‧‧ guiding slope

33‧‧‧ cover

331‧‧‧

34‧‧‧ button

35‧‧‧Flexible components

Claims (7)

A quick-change woodworking flat drill comprising: a rod body; a drill body having two wide faces perpendicular to the axial direction, a cutting portion at the front, a plug portion at the rear of the cutting portion, and a vertical portion of the plug portion a connecting hole for a wide face; a connecting device comprising a connecting seat, an actuating lever, a button, and an elastic member, the connecting seat having an outer ring wall and front and rear end walls, and a connecting body and a rear body The front end is engaged with the joint portion; and the front portion is axially disposed with a socket recessed by the front end wall and insertable into the drill body insertion portion; and a second concave portion of the outer ring wall is respectively disposed on the radial opposite sides of the joint base a first recessed portion, the second recessed portion is provided with a first through hole communicating with the first recessed portion corresponding to the first recessed portion, and the second recessed portion is provided with a second through hole communicating with the insertion hole corresponding to the position of the insertion hole; The position of the two concave portions is respectively set to respectively insert one of the first and second perforations and a positioning column corresponding to the first and second perforating positions, and the binding column and the positioning column are connected by a link portion; and the button is set at the first position The position of the recess and the joint with the binding column And the elastic member may provide a button and actuating lever actuator elasticity, and elastic positioning post can be engaged by the positioning hole of the elastic member and presses the button from the positioning hole so that positioning post. The quick-change woodworking flat drill according to claim 1, wherein the rear end of the insertion portion of the drill body is provided with a guide bevel inclined toward the center of the rear; and the positioning post of the actuating rod is gradually increased from the front to the rear. A guide slope that abuts the guide bevel. The quick-change woodworking flat drill according to claim 1, wherein the rod body is a polygonal body, and after the joint is coupled, the joint portion has a front end recessed into the front end of the pluggable rod body and is interlocked with the rod body. Angled slot. The quick-change woodworking flat drill according to claim 1, wherein the first recess of the joint has a first opening, the first opening has a first bottom wall on one side, and the first recess has a first inner wall. The rim and the gap between the retaining edge and the first opening provide a button displacement distance, and the button can cover the first opening. The quick-change woodworking flat drill according to claim 1, wherein the second recess of the joint has a second opening, and further comprises a cover plate covering the second opening and being movable on the inner side. The link portion of the rod engages the linked body. The quick-change woodworking flat drill according to claim 1, wherein one end of the coupling rod of the actuating rod has a joint end, and a center of the inner surface of the button is provided with a slot that can be engaged with the joint end of the joint rod of the actuating rod. The quick-change woodworking flat drill according to claim 4, wherein the elastic member is disposed in the first recess and is a telescopic spring, and the two ends abut against the button and the first bottom wall of the first recess, respectively.