CN102218727B - Nail puller - Google Patents

Abstract

A nail puller, comprising: a handle; a combining section extending forwards from one end of the grab handle, the combining section is provided with a first end and a second end, and the first end of the combining section is connected with the grab handle; the nail pulling piece extends forwards from the second end of the combining section and is used for pulling a nail needle; the swinging base is arranged on the combining section in a pivoting manner relative to an axis and is provided with at least one groove part, and the groove part is far away from the nail pulling piece than the axis; at least one positioning pin is arranged on the combining section corresponding to the at least one groove part, and the positioning pin slides relatively in the groove part. The invention has the beneficial effects that: labor saving and wide applicability.

Description

nail puller

technical field

The invention relates to a nail puller, in particular to a nail puller with labor saving and wide applicability.

Background technique

The nail puller is used to take out a nail from an object. It mainly has a handle, a nail puller and a fulcrum between the handle and the nail puller. It uses the principle of leverage to pull the nail pull out.

The fulcrum of existing nail pullers is generally fixed and cannot change with the change of the pressing stroke of the handle; this design often has a defect that is not conducive to pulling out long nails.

In view of this, how to solve the above-mentioned problems is the direction that people in the industry urgently need to work hard on.

Contents of the invention

The main purpose of the present invention is to improve the deficiencies of the prior art and provide a labor-saving and widely applicable nail puller.

To achieve the above object, the present invention adopts the following technical solutions:

A nail puller comprising:

a handle;

A combination section extending forward from one end of the handle, the combination section has a first end and a second end, the first end of the combination section is connected to the handle;

a nail-pulling piece extending forward from the second end of the joint section, the nail-pulling piece is used to pull a nail needle;

A swing base, pivotally arranged on the coupling section relative to an axis, the swing base has at least one groove, and the groove is farther away from the nail puller than the axis;

At least one positioning pin is arranged on the coupling section corresponding to the at least one groove, and the positioning pin relatively slides within the groove.

The groove portion is an arc groove, and the center of the arc groove is located on the axis.

There is an obtuse angle between the nail pulling piece and the connecting section.

The swing base has a top surface and a support portion, and the support portion is farther away from the nail puller than the top surface.

The arc-shaped groove has a first end close to the abutment surface and a second end far away from the abutment surface; wherein, when the nail puller pulls the nail and the abutment surface abuts against a target When the plane is on the plane, the positioning pin slides from the second end of the arc-shaped groove toward the first end, and the handle is pressed down and pivoted with the axis as the axis; thereafter, when the positioning When the pin abuts against the first end, the handle swings down with the supporting part as a fulcrum.

The central angle of the arc groove is between 10 and 30 degrees.

A nail puller comprising:

a handle;

A combination section extending forward from one end of the handle, the combination section has a first end and a second end, the first end of the combination section is connected to the handle;

a nail-pulling piece extending forward from the second end of the joint section, the nail-pulling piece is used to pull a nail needle;

A swing base, pivotally arranged on the coupling section relative to an axis, the swing base has at least one groove, and the groove is farther away from the nail puller than the axis;

A positioning pin is arranged on the coupling section corresponding to the at least one groove, and the positioning pin relatively slides in the groove.

The groove portion is an arc groove, and the center of the arc groove is located on the axis.

There is an obtuse angle between the nail pulling piece and the connecting section.

The swing base has a top surface and a support portion, and the support portion is farther away from the nail puller than the top surface.

The arc-shaped groove has a first end close to the abutment surface and a second end far away from the abutment surface; wherein, when the nail puller pulls the nail and the abutment surface abuts against a target When the plane is on the plane, the positioning pin slides from the second end of the arc-shaped groove toward the first end, and the handle is pressed down and pivoted with the axis as the axis; thereafter, when the positioning When the pin abuts against the first end, the handle swings down with the supporting part as a fulcrum.

The central angle of the arc groove is between 10 and 30 degrees.

The nail puller further includes a shaft, which is arranged at the axis; wherein the connecting section is further provided with a long groove, for the shaft and the positioning pin to be slidably arranged on it.

The coupling section further has several positioning grooves, and these positioning grooves communicate with the long groove, so that the shaft or the positioning pin can be selectively inserted into the positioning grooves to be positioned at different positions on the long groove.

The beneficial effects of the invention are: labor saving and wide applicability.

The present invention will be further described below by accompanying drawing.

Description of drawings

Fig. 1 is a perspective view of the first embodiment of the present invention.

Fig. 2 is the use state (1) of the first embodiment of the present invention.

Fig. 3 is the use state (2) of the first embodiment of the present invention.

Fig. 4 is the use state (3) of the first embodiment of the present invention.

Fig. 5 is a perspective view of the second embodiment of the present invention.

FIG. 6 is the use state (1) of the second embodiment of the present invention.

Fig. 7 is the use state (2) of the second embodiment of the present invention.

Fig. 8 is the use state (3) of the second embodiment of the present invention.

Fig. 9 is the use state (4) of the second embodiment of the present invention.

【Description of main labels】

10: Handle 41: Resist the top plate

20: Combined section 42: Side plate

21: First end 43: Arc groove

22: second end 431: first end

23: Long groove 432: Second end

24: Positioning groove 44: Support part

30: Nail pulling piece 45: Top surface

31: bottom surface 50, 50’: positioning pin

32: Rear end 60: Shaft

40: Swing base S: Nail

Detailed ways

The structural features, usage methods and expected effects of the present invention will be described below through several preferred embodiments, but they are not intended to limit the protection scope of the claims of the present invention, and are described in advance.

First, refer to Figure 1. In the first embodiment of the present invention, the nail puller includes a handle 10 , a coupling section 20 , a nail puller 30 , a swing base 40 and a pair of positioning pins 50 .

The handle 10 is for the user to hold, and when the nail puller is working, the user applies force to press down, so as to pull a nail S. The combined section 20 extends forward from one end of the handle 10, the combined section 20 has a first end 21 and a second end 22, the first end 21 of the combined section 20 is connected to the handle 10, and the handle There may also be an appropriate included angle between the handle 10 and the joint section 20 .

The nail puller 30 extends forward from the second end 22 of the joint section 20 (it can be integrally formed or connected to each other by means of welding, etc.), and the nail puller 30 is for contacting with the nail S and pulling the nail S. As for the needle S, in a preferred embodiment, there is an obtuse angle between the nail pulling member 30 and the coupling section 20, and the obtuse angle is preferably less than 150 degrees, most preferably less than 120 degrees. Wherein, the nail pulling member 30 has a bottom surface 31 and a rear end 32 , the bottom surface 31 is for abutting against a target object, and the rear end 32 is close to the coupling section 20 .

The swing base 40 is pivotably disposed on the coupling section 20 relative to an axis, and in a preferred embodiment, a shaft 60 is disposed on the axis. In this embodiment, the swing base 40 includes a propping plate 41 and two side plates 42 located on both sides of the propping plate 41, a shaft hole is formed on the two side plates 42 for the shaft rod 60 to pass through, and the The side plate 42 is further formed with a groove portion, the groove portion is preferably an arc groove 43, the center of circle of the arc groove 43 is just positioned on the axis, that is, the shaft hole, and the arc groove 43 is relatively The axis is away from the nail puller 30 . In addition, the rear edge of the two side plates has an arc-shaped supporting portion 44, and the abutting plate 41 has an abutting surface 45 for abutting against the object plane, and the supporting portion 44 is farther away from the abutting surface 45 than the abutting surface 45. Nail puller 30. Moreover, the arc-shaped slot 43 has a first end 431 close to the abutting surface 45 and a second end 432 far away from the abutting surface 45 .

The two positioning pins 50 protrude from both sides of the coupling section 20 , and each positioning pin 50 is corresponding to the arc-shaped groove 43 and can relatively slide therein.

The usage of the nail puller of the present invention will be described below.

Please refer to Figure 2 and Figure 3. The nail puller 30 first fits tightly with the head of the nail S in an appropriate manner, and then when the user exerts force to press down on the handle 10, since the abutting surface 45 is now attached to the plane of the target object, the positioning pin 50 will Sliding from the second end 432 of the arc-shaped groove 43 toward the first end 431, the handle 10 is pressed down and pivoted with the axis (that is, the shaft 60) as the axis, and the pivot angle is substantially Above is the central angle of the arc groove 43, preferably 10 to 30 degrees.

Please refer to Figure 4. Thereafter, when the positioning pin 50 abuts against the first end portion 431, the handle 10 swings down with the support portion 44 as the fulcrum, and the nail puller has the longest resistance arm (resistance arm) at this time, so that The longer nail S can be completely detached from the target object to achieve the purpose of pulling out the nail.

Also, please refer to Figure 5. In the second embodiment of the present invention, most of its elements are the same as those of the first embodiment, the difference is that the two positioning pins are replaced by a positioning pin 50', and the coupling section 20 is further provided with a The long groove 23 is for the shaft 60 and the positioning pin 50' to be slidably disposed thereon. In a preferred embodiment, the coupling section 20 further has a plurality of positioning grooves 24, and these positioning grooves 24 communicate with the long groove 23 , so that the shaft 60 or the positioning pin 50 ′ is selectively engaged in one of the positioning slots 24 to be positioned at different positions on the long groove 23 .

Please refer to Figure 6. The nail puller 30 first fits tightly with the head of the nail S in an appropriate manner, and then when the user presses down on the handle 10, the nail puller will pivot a few times with the rear end 32 of the nail puller 30 as the fulcrum. angle. Since the needle S penetrates the most into the target at this time, the resistance arm (resistance arm) is designed to be extremely short, while the power arm (force arm) is the longest, so that the user can initially pull the needle S with less effort.

Please refer to Figure 7. At an appropriate angle, the joint section 20 may be in contact with the target object plane, and at this time, the contact point is used as a fulcrum to continue to pull the staple S until the abutting surface 45 of the swing base 40 is in contact with the target object flat. It should be noted that, during the process of pressing down the handle 10 , the combination section 20 is designed differently depending on the position of the swing base 40 , and may not be in contact with the target object.

Please refer to FIG. 8 and FIG. 9 , the user can change the position of the swing base 40 according to the requirement, thereby changing the length of the moment arm, so as to achieve the purpose of labor saving or the purpose of shortening the stroke.

It can be seen from the above that the present invention provides a swing base and an arc-shaped groove on the swing base, so that the handle can be pivoted with the shaft as the axis in advance, and then the support can be changed to the pivot. To achieve the fulcrum transfer effect, thereby changing the length of the power arm (force arm) and resistance arm (resistance arm), and when the needle is gradually pulled out of the target, the length of the resistance arm (resistance arm) is gradually increased to make the pulling out The nail piece can be tilted to a higher position, so that the long nail needle can be pulled out from the target smoothly.

Claims (14)

1. A nail puller, comprising a handle, a combination section and a nail puller, the combination section extends forward from one end of the handle, the combination section has a first end and a second end, the combination The first end of the section is connected to the handle, and the nail puller extends forward from the second end of the combined section. The nail puller is used to pull a nail needle. It is characterized in that the nail puller further includes: A swing base, pivotally arranged on the coupling section relative to an axis, the swing base has at least one groove, and the groove is farther away from the nail puller than the axis; At least one positioning pin is arranged on the coupling section corresponding to the at least one groove, and the positioning pin relatively slides within the groove. 2. The nail puller according to claim 1, wherein the groove portion is an arc-shaped groove, and the center of the arc-shaped groove is located on the axis. 3. The nail puller according to claim 2, wherein an obtuse angle is formed between the nail puller and the connecting section. 4 . The nail puller according to claim 2 , wherein the swing base has a top surface and a support portion, and the support portion is farther away from the nail puller than the top surface. 5. The nail puller according to claim 4, wherein the arc-shaped groove has a first end close to the abutment surface and a second end far away from the abutment surface; Wherein, when the nail puller pulls the nail and the abutting surface abuts against a target plane, the positioning pin slides from the second end of the arc-shaped groove toward the first end, and the The handle is pressed down and pivoted with the axis as the axis; then, when the positioning pin abuts against the first end, the handle swings down with the support part as the fulcrum. 6. The nail puller according to claim 2, wherein the central angle of the arc-shaped groove is between 10 and 30 degrees. 7. A nail puller, characterized in that it comprises: a handle; A combination section extending forward from one end of the handle, the combination section has a first end and a second end, the first end of the combination section is connected to the handle; a nail-pulling piece extending forward from the second end of the joint section, the nail-pulling piece is used to pull a nail needle; A swing base, pivotally arranged on the coupling section relative to an axis, the swing base has at least one groove, and the groove is farther away from the nail puller than the axis; A positioning pin is arranged on the coupling section corresponding to the at least one groove, and the positioning pin relatively slides in the groove. 8. The nail puller according to claim 7, wherein the groove portion is an arc-shaped groove, and the center of the arc-shaped groove is located on the axis. 9. The nail puller according to claim 8, wherein an obtuse angle is formed between the nail puller and the connecting section. 10 . The nail puller according to claim 8 , wherein the swing base has a top surface and a support portion, and the support portion is farther away from the nail puller than the top surface. 11 . 11. The nail puller according to claim 10, wherein the arc-shaped groove has a first end close to the abutment surface and a second end far away from the abutment surface; Wherein, when the nail puller pulls the nail and the abutting surface abuts against a target plane, the positioning pin slides from the second end of the arc-shaped groove toward the first end, and the The handle is pressed down and pivoted with the axis as the axis; then, when the positioning pin abuts against the first end, the handle swings down with the support part as the fulcrum. 12. The nail puller according to claim 8, wherein the central angle of the arc-shaped groove is between 10 and 30 degrees. 13. The nail puller according to claim 8, further comprising a shaft disposed at the axis; Wherein the connecting section is further provided with a long groove for the shaft rod and the positioning pin to be slidably arranged thereon. 14. The nail puller according to claim 13, wherein the coupling section further has several positioning grooves, and these positioning grooves communicate with the long groove, so that the shaft or the positioning pin can be selectively It is snapped into the positioning groove and positioned at different positions on the long groove.

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