Applicable to various nail gun force adjustment devices and nail guns

Abstract

A nail gun with a force adjustment device includes a housing unit, a driving pin, a power storage unit, a pressure handle unit, an elastic unit, and a force adjustment device. The force adjustment device includes a guide member and an adjustment unit. The guide member has a lower end, a higher end, and a contact surface extending from the higher end to the lower end. The higher end is positioned higher than the lower end in a vertical direction. The adjustment unit has an adjustment member movably disposed on the contact surface and an operating member connected to the adjustment member. The adjustment member provides a limiting contact when the power storage unit releases its elastic force. Operating the operating member moves the adjustment member to different positions on the contact surface. This allows it to be adapted to work requirements with different nail bodies and different driving pin depths.

Description

[Technical Field]

[0001] This invention relates to a nail gun, and more particularly to a force adjustment device applicable to various nail guns and the nail gun thereof. [Previous Technology]

[0002] A nail-driving machine (disclosed in Republic of China Utility Model Patent Publication No. 545350) includes a housing, a holding body, a spring, a firing pin, a spring plate, a nail slot, and a nail guard plate. When the holding body is pressed, it pulls the firing pin upward, causing the firing pin to pull the spring plate upward. Through a pivot in the housing, the front end of the spring plate bends, accumulating elastic force. When the holding body pivots downward until it abuts against a support shaft and slides backward, a hook plate at the front end disengages from the firing pin. At this time, the firing pin, under the restoring force of the spring plate, momentarily slides downward, striking out a nail from inside the nail slot, thus achieving the purpose of nail driving.

[0003] Although the above-mentioned nailing machine can achieve the expected nailing purpose, the elasticity of the spring and the striking force of the striking pin cannot be adjusted. Therefore, this nailing machine cannot be used for work requirements with different nail bodies and different striking depths. [Summary of the Invention]

[0004] Therefore, one object of the present invention is to provide a force adjustment device for various nail guns that can adjust the elasticity and is suitable for different nail bodies and different firing pin depths.

[0005] One object of the present invention is to provide a nail gun with a force adjustment device that can adjust the elasticity and is suitable for working requirements of different nail bodies and different firing pin depths.

[0006] Therefore, the force adjustment device of the present invention, applicable to various nail guns, is suitable for installation in a nail gun, which further includes a housing unit, a nail-driving piece disposed inside the housing unit that is movable in a vertical direction, a power storage unit disposed inside the housing unit and providing the nail-driving piece with a moving elastic force, a pressure handle unit rotatably pivotally mounted to the housing unit, and an elastic unit disposed inside the housing unit and providing the pressure handle unit with a restoring elastic force. The force adjustment device includes a guide member and an adjustment unit. The guide member is disposed inside the housing unit and has a low end adjacent to the nail-driving piece, a high end opposite to the low end in a front-back direction, and an abutment surface extending from the high end to the low end. The high end is higher than the low end in the vertical direction. The adjustment unit has an adjustment member disposed inside the housing unit and movable on the abutment surface, and an operating member that can be linked to the adjustment member. The adjustment member provides a limiting abutment when the energy storage unit releases its elastic force. The operating member extends from the outside of the housing unit to the inside of the housing unit. Operating the operating member can move the adjustment member to different positions on the abutment surface.

[0007] The present invention relates to a nail gun with a force adjustment device, comprising a housing unit, a nail-driving blade, a power-accumulating unit, a pressure handle unit, an elastic unit, and a force adjustment device. The housing unit includes two housing seats defining a receiving space. The housing unit has a top, a bottom portion in a vertical direction opposite to the top, a groove communicating with the outside from the receiving space, and a nail outlet disposed on the bottom portion and communicating with the outside from the receiving space. The nail-driving blade is positioned corresponding to the nail outlet and is movable in the vertical direction within the receiving space. The power-accumulating unit is disposed in the receiving space and provides elastic force for the nail-driving blade to move in the vertical direction. The pressure handle unit is rotatably pivotally mounted to the housing unit, and operating the pressure handle unit allows the power-accumulating unit to store and release the elastic force. The elastic unit is disposed in the receiving space and provides elastic force for the power-accumulating unit and the pressure handle unit to recover. The force adjustment device includes a guide and an adjustment unit. The guide is disposed in the receiving space and has a low end adjacent to the nail plate, a high end opposite to the low end in a front-back direction, and a bearing surface extending from the high end to the low end. The high end is higher than the low end in the vertical direction. The adjustment unit has an adjustment member disposed in the receiving space and movably disposed on the bearing surface, and an operating member that can be linked to the adjustment member. The adjustment member provides a limiting bearing when the power storage unit releases its elastic force. The operating member extends from the outside of the housing unit into the receiving space and is movably inserted in the slide groove. Operating the operating member can move the adjustment member to different positions on the bearing surface.

[0008] The advantages of the present invention are: by using the setting of the force adjustment device, the position of the adjustment member relative to the abutment surface can be adjusted, and the limiting abutment position when the power storage unit releases the elastic force can be adjusted, so that it can be applied to the working requirements of different nail bodies and different firing pin depths, and the adjustment operation is quite easy.

Implementation Method

[0009] Before the present invention is described in detail, it should be noted that similar elements are represented by the same numbers in the following description.

[0010] Referring to Figures 1 and 2, a first embodiment of the nail gun with a force adjustment device of the present invention includes a housing unit 10, a nail-driving blade 20, a power storage unit 30, a pressure handle unit 40, an elastic unit 50, a force adjustment device 60, and a nail storage unit 70.

[0011] The housing unit 10 includes two housing seats 12 that define a receiving space 11. The housing seat 12 has a top 121, a bottom 122 that is opposite to the top 121 in a vertical direction Z, a groove 123 that communicates with the receiving space 11 to the outside, a nail outlet 124 disposed on the bottom 122 and communicating with the receiving space 11 to the outside, a pivot 125 adjacent to the groove 123 and extending in a horizontal direction X perpendicular to the vertical direction Z, and an inclined guide groove 126. The groove 123 is disposed on the top 121. The guide groove 126 extends obliquely from below the groove 123 toward above the nail outlet 124.

[0012] The nail-driving piece 20 is positioned corresponding to the nail outlet 124 and is movable along the vertical direction Z in the receiving space 11. The nail-driving piece 20 has a slot 21 and a connecting groove 22 disposed below the slot 21.

[0013] The power storage unit 30 is disposed in the accommodating space 11 and provides elastic force for the nail plate 20 to move in the vertical direction Z. In this embodiment, the power storage unit 30 is a torsion spring and has a ring portion 31 pivotally connected to the pivot 125, a force-receiving arm 32 connected to one end of the ring portion 31, and a driving arm 33 connected to the other end of the ring portion 31. The force-receiving arm 32 has a main rod section 321 in the shape of an inverted L and a crossbar section 322 intersecting and connected to the main rod section 321. The driving arm 33 is inserted into the connecting groove 22.

[0014] The pressure handle unit 40 includes a handle 41 rotatably pivotally mounted to the housing unit 10, a suspension 42 disposed inside the handle 41 and rotatably pivotally mounted to the housing unit 10, a latching member 43 pivotally connected to the suspension 42 and the housing unit 10, and a spring 44 connecting the suspension 42 and the latching member 43. The suspension 42 has a pressing part 421 disposed at the bottom, which abuts against the main rod section 321. The latching member 43 has a locking end 431, which is detachably engaged in the locking groove 21.

[0015] The elastic unit 50 is disposed in the accommodating space 11 and provides elastic force for the recovery of the power storage unit 30 and the pressure handle unit 40. The elastic unit 50 includes an elastic element 51 employing a compression spring 44 and a support seat 52 supported by the elastic element 51. The crossbar segment 322 of the force-bearing arm 32 abuts against the support seat 52.

[0016] Referring to Figures 2 and 3, the force adjustment device 60 includes a guide member 61 and an adjustment unit 62. The guide member 61 is disposed in the receiving space 11. In this embodiment, the guide member 61 is directly integrally formed into one of the housings 12 and protrudes into the receiving space 11 in a protrusion shape. The guide member 61 has a low end 611 adjacent to the nail plate 20, a high end 612 opposite to the low end 611 along a front-back direction Y perpendicular to the vertical direction Z, and an abutment surface 613 extending from the high end 612 to the low end 611. The high end 612 is higher than the low end 611 corresponding to the vertical direction Z. The abutment surface 613 has two stepped abutment portions 614, which are at different heights corresponding to the vertical direction Z. The adjustment unit 62 includes an adjustment member 621 disposed in the accommodating space 11 and movably disposed on the abutment surface 613, a connecting rod 622 pivotally connected to the adjustment member 621 and slidably mounted in the guide groove 126, and an operating member 623 that can be linked to the adjustment member 621. The adjustment member 621 provides a limiting abutment when the drive arm 33 of the power storage unit 30 releases its elastic force. The operating member 623 extends from the outside of the housing unit 10 into the accommodating space 11 and is movably inserted into the slide groove 123. The operating member 623 is opposite to the adjustment member 621 and connected to the connecting rod 622. Operating the operating member 623 can move the adjustment member 621 to the abutment portion 614 at different positions on the abutment surface 613, and can adjust the stroke of the power storage unit 30 when releasing its elastic force.

[0017] The nail storage unit 70 is detachably installed on the housing unit 10 and can store a plurality of nails 80. The nail storage unit 70 is suitable for different types of nails 80 (see Figure 2).

[0018] In order to further understand the effects produced by the combination of the various components of the present invention, the technical means used, and the expected effects, the following explanation will be provided, which will hopefully lead to a deeper and more specific understanding of the present invention.

[0019] As shown in Figures 1, 4, and 5, when the overall assembly is complete, the nail storage unit 70 is filled with nails of a predetermined pattern 80, and the pressure handle unit 40 has not yet been pressed, the handle 41 of the pressure handle unit 40 is in a starting position, the pressure part 421 is in an original position, the force arm 32 of the power storage unit 30 springs against the pressure part 421, and the driving arm 33 drives the nail-driving piece 20 to a non-nailing position, with the bottom end of the nail-driving piece 20 slightly higher than the position of the nails 80. The snap-fit ​​end 431 of the latch 43 is engaged in the slot 21 of the nail-driving piece 20, and the elastic unit 50 also springs against the force arm 32.

[0020] As shown in Figure 6, when the operator operates and presses down the handle 41 of the pressure handle unit 40, the handle 41 drives the suspension 42 to rotate relative to the housing unit 10. The braking part 421 of the suspension 42 presses against the force arm 32 of the power storage unit 30, causing the force arm 32 to move towards the bottom 122 of the housing 12 and press against the elastic member 51, thereby compressing the elastic member 51 and accumulating a potential energy that pushes the power storage unit 30 towards the top 121 of the housing 12. Furthermore, the handle 41, through the suspension 42, drives the buckle 43 to gradually move towards the top 121 and backward, and drives the nailing piece 20. The nailing piece 20 drives the driving arm 33 of the power storage unit 30 to gradually move towards the top 121, thereby accumulating a potential energy in the power storage unit 30 that drives the nailing piece 20 towards the nail outlet 124.

[0021] As shown in Figures 4 and 5, when the handle 41 is rotated to a nailing position, the locking end 431 of the latch 43 disengages from the slot 21 of the nailing piece 20. The power storage unit 30 releases potential energy, causing the driving arm 33 of the power storage unit 30 to move the nailing piece 20 toward the nail outlet 124, causing the nail 80 originally located at the nail outlet 124 to perform a nailing action. At this time, the driving arm 33 of the power storage unit 30 moves toward the bottom 122 until it contacts the adjusting member 621 and is blocked, unable to continue moving toward the bottom 122.

[0022] As shown in Figures 4 to 6, when the handle 41 returns from the nailing position to the starting position, the elastic element 51 releases potential energy and pushes the abutment 52 and the power storage unit 30 to move towards the top 121, thereby causing the suspension 42, the buckle 43 and the handle 41 to rotate, and driving the driving arm 33 of the power storage unit 30 to move the nailing piece 20 towards the top 121, until the slot 21 of the nailing piece 20 is inserted by the snap-fit ​​end 431 of the buckle 43, so that the nailing piece 20 maintains elastic potential energy.

[0023] As shown in Figures 7 and 8, when the nail storage unit 70 is replaced with different types of nails 80, and different nailing depths and nailing intensities are required for different types of nails 80, the operator can operate the operating member 623 of the force adjustment device 60 to slide in the slide groove 123. The operating member 623 is connected to the connecting rod 622, and the connecting rod 622 is connected to the adjusting member 621 to move to another abutment 614 at a different height. This can adjust the stroke of the energy storage unit 30 to release the elastic force. By utilizing the change in the stroke of the energy storage unit 30 to release the elastic force, the nailing plate 20 can be provided with different nailing depths and nailing intensities.

[0024] Operating the pressure handle unit 40 can cause the energy storage unit 30 to accumulate and release the elastic force. The main rod section 321 of the force arm 32 is linked to the pressure handle unit 40 and can accumulate the energy of the driving arm 33 to release the elastic force.

[0025] Referring again to Figures 9 to 11, a second embodiment of the nail gun with a force adjustment device of the present invention differs from the first embodiment only in the structure and shape of the housing unit 10' and the force adjustment device 60'. Therefore, the following description and figures will only describe and show the differences.

[0026] The housing unit 10's housing base 12' also includes a first side 127' extending from the top 121' to the bottom 122' and a second side 128' opposite to the first side, and the slide 123' is connected to the outside of the first side 127' by the receiving space 11'.

[0027] The force adjustment device 60' also includes a guide member 61' and an adjustment unit 62'. The adjustment unit 62' has an adjustment member 621' movably disposed on the guide member 61', and an operating member 623' that can be linked to the adjustment member 621'. The operating member 623' is movably inserted into the slide groove 123'.

[0028] In the second embodiment, the operating member 623' is directly connected to the adjusting member 621'. When the operator operates the operating member 623' to slide along the slide groove 123', and the operating member 623' directly connects to the adjusting member 621' to move relative to the guide member 61', the stroke of the energy storage unit releasing the elastic force can be adjusted. Moreover, by utilizing the change in the stroke of the energy storage unit releasing the elastic force, different nailing depths and nailing strengths can be provided for the nailing plate (refer to the description and drawings of the first embodiment). That is to say, the connecting rod member not provided in the first embodiment is omitted in the second embodiment, but the same purpose and effect as the first embodiment can be achieved.

[0029] Therefore, the force adjustment device of the present invention can be applied to the working requirements of different nail bodies and different firing pin depths, and the adjustment operation is quite easy.

[0030] In summary, the nail gun of the present invention with a force adjustment device has simple overall components and is easy to manufacture and assemble, and can indeed achieve the purpose of the present invention.

[0031] However, the above description is only an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the patent specification of the present invention shall still fall within the scope of the patent of the present invention. [Simplified Explanation of the Diagram]

[0032] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG1 is an incomplete perspective view of a first embodiment of the nail gun with a force adjustment device of the present invention, illustrating the removal of one of the housings; FIG2 is an exploded perspective view of the first embodiment; FIG3 is an exploded perspective view of the force adjustment device of the first embodiment, illustrating another perspective of the force adjustment device; FIG4 is a front view of the first embodiment, illustrating the removal of one housing; FIG5 is a partially enlarged view of FIG4; FIG6 is a nail-driving operation diagram similar to FIG4; FIG7 is a force adjustment diagram of the first embodiment; FIG8 is a partially enlarged view of FIG7; FIG9 is a perspective view of a second embodiment of the nail gun with a force adjustment device of the present invention; FIG10 is an exploded perspective view of the second embodiment; and FIG11 is a front view of the second embodiment, illustrating the removal of one housing.

Claims

1. A force adjustment device applicable to various nail guns, suitable for installation in a nail gun, the nail gun further comprising a housing unit, a nail-driving disc movable in a vertical direction and disposed inside the housing unit, a power storage unit disposed inside the housing unit and providing a moving spring force for the nail-driving disc, a pressure handle unit rotatably pivotally mounted to the housing unit, and an elastic unit disposed inside the housing unit and providing a restoring spring force for the pressure handle unit, the force adjustment device comprising: A guide member, disposed inside the housing unit, has a low end adjacent to the nail plate, a high end opposite to the low end in a front-back direction, and an abutment surface extending from the high end to the low end, the high end being higher than the low end in the vertical direction; and an adjustment unit, having an adjustment member disposed inside the housing unit and movably disposed on the abutment surface, and an operating member that can be linked to the adjustment member, the adjustment member providing a limiting abutment when the power storage unit releases its elastic force, the operating member extending from the outside of the housing unit to the inside of the housing unit, and operating the operating member can move the adjustment member to different positions on the abutment surface.

2. The force adjustment device applicable to various nail guns as described in claim 1, wherein, The guide member has at least two stepped abutment parts on its abutment surface. These abutment parts are at different heights corresponding to the vertical direction. Operating the operating member can move the adjusting member to the abutment parts at different positions.

3. The force adjustment device applicable to various nail guns as described in claim 2, wherein, The housing unit has a slide groove at the top, and the adjustment unit also has a connecting rod pivotally connected to the adjustment member. The operating member is opposite to the adjustment member and connected to the connecting rod member. The operating member is slidably mounted in the slide groove.

4. The force adjustment device applicable to various nail guns as described in claim 1, wherein, The energy storage unit uses a torsion spring and has a ring portion pivotally connected to the housing unit, a force-receiving arm connected to one end of the ring portion, and a drive arm connected to the other end of the ring portion. The force-receiving arm is linked to the pressure handle unit and can store the energy of the drive arm releasing the elastic force.

5. A nail gun with a force adjustment device, comprising: a housing unit including two housing seats defining a receiving space, the housing unit having a top, a bottom in a vertical direction opposite to the top, a groove communicating with the outside from the receiving space, and a nail outlet disposed on the bottom and communicating with the outside from the receiving space; a nail-driving blade positioned corresponding to the nail outlet and movable in the vertical direction and disposed in the receiving space; a force-accumulating unit disposed in the receiving space and providing elastic force for the nail-driving blade to move in the vertical direction; and a pressure handle unit rotatably pivotally mounted on the housing unit, wherein operating the pressure handle unit causes the force-accumulating unit to store and release the elastic force. An elastic unit is disposed in the receiving space and provides elastic force for the return of the power storage unit and the pressure handle unit; and a force adjustment device includes a guide and an adjustment unit. The guide is disposed in the receiving space and has a low end adjacent to the nail plate, a high end opposite to the low end in a front-back direction, and a bearing surface extending from the high end to the low end. The high end is higher than the low end in the vertical direction. The adjustment unit has an adjustment member disposed in the receiving space and movably disposed on the bearing surface, and an operating member that can be linked to the adjustment member. The adjustment member provides a limiting bearing when the power storage unit releases its elastic force. The operating member extends from the outside of the housing unit into the receiving space and is movably inserted into the slide groove. Operating the operating member can move the adjustment member to different positions on the bearing surface and can adjust the stroke of the power storage unit releasing its elastic force.

6. A nail gun with a force adjustment device as described in claim 5, wherein, The guide surface of the adjustment unit has at least two stepped abutment portions, which are at different heights corresponding to the vertical direction. Operating the operating component can move the adjustment component to the abutment portions at different positions.

7. A nail gun with a force adjustment device as described in claim 6, wherein, The housing unit has a groove located on the top of the housing base. The adjustment unit also has a connecting rod pivotally connected to the adjustment member. The operating member is opposite to the adjustment member and connected to the connecting rod.

8. A nail gun with a force adjustment device as described in claim 5, wherein, The energy storage unit uses a torsion spring and has a ring portion pivotally connected to the housing unit, a force-receiving arm connected to one end of the ring portion, and a drive arm connected to the other end of the ring portion. The force-receiving arm is linked to the pressure handle unit and can store the energy of the drive arm releasing the elastic force.

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