JP3142977U - Protective nail gun - Google Patents

Abstract

To provide a highly safe nail gun.
A striking piece 13 that selectively lifts and hits a nail body downward is installed on the front edge of the airframe, and a pressure reducing element 21 is installed on the front edge of the airframe in front of the striking piece. The bottom end of the pressure element selectively protrudes from the bottom surface of the airframe, and the airframe pivotally installs a rotation braking element 25 above the pressure element 21 and the striking piece 13. The rotation braking element 25 selectively restricts the upward movement of the striking piece 13 depending on whether or not the pressure-compensating element 21 protrudes from the bottom surface of the airframe, so that when the nail gun is not adhered to the object surface, the striking piece Does not move to the launch position and does not fire the nail due to malfunction.
[Selection] Figure 1

Description

  The present invention relates to a nail gun, and more particularly to a protective nail gun.

A nail gun is a device that continuously nails a property. Mainly, a nail tub for accommodating a nail body is formed at the bottom of the machine body, the nail tank has a compressor for thrusting the nail body forward, and the front edge of the machine body has a striking piece. When moving upward, the lower nail body is acted by the compressor and enters the striking range of the striking piece, so that the striking piece is released and when hitting downward instantaneously, the lower nail body is strong. Therefore, nail guns are widely used because they are easy to operate and efficient.

  The nail gun generates a recovery force by the elastic element after the striking piece moves up by operation, so that when the striking piece is released, a momentary downward recovery force will force the lower nail body Fire and complete the nailing action. Therefore, in order to prevent the nail from hitting the nail body due to malfunction when the nail gun is not used, a protective design is generally installed, and when not in use, the pressure bar is locked on the fuselage and the hitting piece is fired. Although the pressure rod is actually released during operation, even if the operator does not attach the nail gun to the surface of the object, the above-mentioned malfunction may occur in the same way. There is.

Accordingly, an object of the present invention is to provide a highly safe nail gun that prevents erroneous firing of the nail gun due to erroneous operation of the pressure rod.

  The nail gun according to the present invention includes a fuselage, a striking piece, a resistance element, and a rotation braking element. The aircraft holds other elements. The striking piece is installed in front of the aircraft, selectively moves up, and fires instantaneously. The pressure element is slid in front of the impact piece of the airframe, and the pressure element protrudes or retracts relative to the bottom surface of the airframe. The rotation braking element is pivotally arranged above the impact pressure element and the impact piece of the fuselage, and selectively rotates by the protrusion or contraction of the resistance pressure element. When the resistance pressure element protrudes from the fuselage, the rotation braking element However, when the striking piece is positioned above the same axis where the striking piece rises, and the reluctance element is retracted into the fuselage, the turning braking element is located at a shift position where the striking piece rises.

  According to the present invention, the nail gun according to the present invention is configured so that the rotation braking element selectively restricts or releases the hitting piece depending on whether or not the resistance element protrudes from the bottom surface of the fuselage, and the nail gun is not attached to the object surface. Sometimes, the striking piece does not move to the firing position, effectively preventing the nail from firing due to malfunction.

As shown in FIG. 1 and FIG. 2, the protective nail gun of the present invention selects the nail gun from the airframe 10, the hitting piece 13 that can be lifted and hit instantaneously, and the upward movement of the hitting piece 13. The rotation braking element 25 can be limited.

  In a preferred embodiment of the nail gun according to the present invention, as shown in FIGS. 1 to 3, the bottom of the airframe 10 is provided with a nail tub 11 in which a continuous nail body 30 is placed (shown in FIG. 3). The front edge of the fuselage 10 has a track piece 12 corresponding to the nail tank 11.

  The striking piece 13 is slid within the track piece 12 of the airframe 10, the upper stage of the striking piece 13 forms an opening 14, and a pressure rod 15 is pivoted on the airframe 10. One end different from the above has a hook 150 hooked on the opening 14 of the striking piece 13, the striking piece 13 moves to a striking position above the nail body 30 (shown in FIGS. 5 and 6), and the inside of the airframe 10 is The spring piece 16 that receives the banding movement of the hitting piece 13 and generates a restoring force is installed, whereby the person operating it lowers the pressure rod 15 and the hook 150 brings the hitting piece 13 to the hitting position. When the hook 150 is removed and the opening 14 of the striking piece 13 is detached, the nail body 30 in the lower nail tub 11 is launched at the moment when the striking piece 13 receives the downward recovery action of the spring piece 16. The

  Further, the pressure element 21 is slid in front of the striking piece 13 on the leading edge of the airframe 10, and has opposing guiding elements 22 and 23 between the pressure element 21 and the airframe 10, respectively. In this case, the local part slides up and down and does not escape completely, and protrudes or retracts from the fuselage 10. The guiding elements 22 and 23 of the present invention are mainly composed of opposing convex blocks and a long tank. Moreover, the upper end of the pressure element 21 forms a horizontal top step 210, and one end of the top step 210 has a slanted surface 211 that is inclined outwardly downward. 24, the resistance element 21 is naturally projected from the bottom surface of the fuselage 10 under the action of the return spring 24.

  The above-described rotation braking element 25 is pivotally mounted on the airframe 10 by a pivot 26, and the rotation braking element 25 has one or a plurality of pressure-resisting portions 250 that limit the rising of the striking piece 13. The top end of the striking piece 13 has a corresponding apex portion 130, and the rotation braking element 25 has an inclined surface 251 that changes relative to the inclined surface 211 of the resistance element 21. Further, a screw 27 is installed between the rotation braking element 25 and the airframe 10, and the rotation braking element 25 is automatically localized at a position where the pressing portion 250 can limit the rising of the striking piece 13 under normal conditions. The striking piece 13 is restricted by the rotation braking element 25.

  In actual operation of the present invention, as shown in FIGS. 3 to 6, when the user performs a nail gun operation with the nail gun, the nail gun adheres to the object surface (shown in FIG. 4), and the pressure is reduced. When the element 21 is retracted into the fuselage 10 and the compression element 21 compresses the upper restoring spring 24 to generate a restoring force and the compression element 21 rises, at the same time, the inclination of the compression element 21 The rotation braking element 25 is rotated by the guiding surface 211 and the inclined guiding surface 251 of the rotation braking element 25, and the pressure resistance portion 250 of the rotation braking element 25 is shifted, so that it is in the same axis as the top resistance portion 130 of the striking piece 13. When the user pushes the pressure bar 15 downward, the hook 150 of the pressure bar 15 is caught in the opening 14 of the striking piece 13 and hits. The piece 13 is raised to a predetermined striking position (shown in FIG. 5) At the same time, the spring piece 16 is swung upward to generate a momentary downward recovery force, so that the striking piece 13 is symptom at a certain altitude, and the hook 150 of the pressure rod 15 is striking the striking piece 13. When the opening 14 is detached, the striking piece 13 momentarily strikes downward by the restoring force of the spring piece 15 (shown in FIG. 6), and the striking piece 13 strongly fires the lower nail body 30. And the nail is firmly fixed, and the nail driving operation is completed. When the nail gun leaves the object surface, the pressure-compensating element 21 and the rotational braking element 25 are restored to the closed state (shown in FIG. 3) by receiving the restoring force of the restoring spring 24 and the screw spring 27, respectively, and the next circulation. Provide behavior.

  When the nail gun is not attached to the surface of the object, as shown in FIG. 3 and FIG. 7, the resistance element 21 receives the restoring force action of the restoring spring 24, protrudes downward from the bottom surface of the body 10, and rotates. Under the condition that the braking element 25 is not subjected to the thrust, the rotational braking element 25 is subjected to the action of the screw spring 27, and the rotational braking element 25 is localized at a position corresponding to the apical part 130 of the striking piece 13, and the rotational braking is performed. The pressing portion 250 of the element 25 and the apex portion 130 of the striking piece 13 are in the same axis, so that when the user pushes the pressure rod 15 of the nail gun, the hook 150 of the pressure rod 15 The impact piece 13 is caught in the opening 14 and the striking piece 13 rises upward. However, when the top portion 130 of the striking piece 13 adheres to the bottom surface of the pressure portion 250 of the rotation braking element 25, the striking piece 13 rises and rotational braking is performed. Presents the same axis as element 25 and forms a closed stateThe striking piece 13 cannot continue to move to the predetermined striking position due to the limitation of the rotation braking element 25 (shown in FIG. 7), so that the striking piece 13 is not attached to the object surface. Below, the nail body 30 is prevented from being hit by an erroneous operation, and the safety of using the nail gun is ensured.

It is a figure which shows the aspect of a main element, and a relative relationship with the local solid external view of the nail gun of this invention. It is a figure which shows the composition state of this invention by the local three-dimensional external view of the nail gun of this invention. It is a side view top view of the nail gun of the present invention. It is an operation | movement figure of the open state of the nail gun of this invention. It is an operation | movement diagram in which the hit piece of the nail gun of this invention raises to a hit position. It is an operation | movement figure which the hit piece of the nail gun of this invention hits a nail body. It is an operation | movement figure of the unopened state of the nail gun of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Airframe 11 Nail tank 12 Track piece 13 Strike piece 14 Opening 15 Pressure rod 16 Spring piece 21 Pressure element 22, 23 Guide element 24 Retraction spring 25 Turning brake element 26 Axis 27 Screw 30 30 Nail body 130 Top part 150 Hook 210 Top 211 211 Diagonal Surface 250 Pressure Resistance Portion 251 Diagonal Surface

Claims (9)

It is a protective nail gun, consisting of a fuselage, a striking piece, a pressure element and a rotation braking element,
The aircraft contains other elements,
The hitting piece is installed in front of the aircraft, selectively moves up, and instantaneously fires,
The pressure element is slid in front of the hitting piece of the airframe, and the pressure element protrudes or retracts relative to the bottom surface of the airframe,
The rotation braking element is pivotally disposed above the impact pressure element and the striking piece of the airframe, and selectively rotates by the protrusion or contraction of the resistance pressure element, and the resistance pressure element protrudes from the airframe. The rotation braking element is positioned above the same axis along which the striking piece ascends, and the revolving braking element is shifted to a position where the striking piece ascends when the pressure-compensating element is retracted into the fuselage. Protective nail gun characterized by being localized in An opposing guiding element is installed between the airframe and the resistance element, and the resistance element moves locally and slightly protrudes and retracts from the airframe, but does not completely escape. The protective nail gun according to claim 1. The protective nail gun according to claim 1, wherein the guide element of the airframe and the resistance element is selected from an opposing long tank and a convex block. The top end of the pressure-compensating element has a slanted surface inclined downward and outward, and the turning braking element further has a slanted surface that changes relative to the slanted surface of the pressure-compensating element, The protective nail gun according to claim 1, wherein the rotation braking element selectively rotates by the protrusion and contraction of the resistance element. The rotation braking element has a pressure-resisting portion for restricting the rising of one or a plurality of striking pieces, and the striking piece has a corresponding coaxial apex portion. 4. A protective nail gun according to 4. The protective nail gun according to claim 1, wherein the airframe has a return spring above the resistance element, and the resistance element automatically returns downward. The protective nail gun according to claim 6, wherein the top end of the resistance element forms a horizontal top step and is supported by the return spring. The protective nail gun according to claim 1, wherein the rotational braking element is pivotally mounted on the body by a pivot. The rotation braking element is automatically localized to a position that restricts the pressing portion from ascending the striking piece under normal conditions by the mutual support of the screw spring and the airframe. The protective nail gun according to claim 1 or 8.

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