JP3118496U - Nail pusher - Google Patents

Abstract

To provide a nail pusher capable of sufficiently transmitting a force for pushing a metal core to a nail.
A nailing pusher 100 includes a cylindrical body 110 and a cored bar. A through hole 114 is formed inside the cylinder 110, and a long hole 115 is formed in the peripheral wall of the cylinder 110. The cored bar can slide in the through hole 114, and the cored bar is formed with a protrusion 123 that slides inside the elongated hole 115. The metal core has a length that protrudes outside the cylindrical body 110 when the protrusion 123 slides along the long hole 115 to one end of the long hole 115. A concave portion 124 with which the tip of the nail 130 can be engaged is formed at the tip of the cored bar.
[Selection] Figure 1

Description

  The present invention relates to a pushing tool for pushing a nail, a pin or other needle-like object into a wall to fix the hook to the wall when the hook is attached to the wall.

  When hanging a wall clock or painting frame on the wall, first attach a hook to the wall and hang the wall clock or painting frame on the hook. Usually, when a hook is attached to a wall, a hook is fixed to the wall by penetrating a nail, a pin or other needle-like object through the hook and then pushing it into the wall. Various nail pushers have been proposed so far to reduce the labor of pushing nails, pins and other needles into the wall.

  As an example, a nail pushing tool described in Japanese Utility Model Publication No. 63-94679 is shown in FIGS.

  FIG. 6 is a cross-sectional view of the nail pusher 30 described in the publication, and FIG. 7 is a cross-sectional view showing a usage state of the nail pusher 30.

  As shown in FIG. 6, the nail pusher 30 includes a body 1 including a cylindrical base portion 2 and a conical tip portion 3 screwed into the base portion 2.

  A cylindrical cavity 4 is formed in the body 1 from the base 2 to the tip 3, and a through hole 5 is formed in the tip 3. The through hole 5 is narrower than the cavity 4 and communicates with the cavity 4 via the step 6.

  A cylindrical body 7 is fitted in the through hole 5, and a flange 8 that engages with the stepped portion 6 is formed at the rear end of the cylindrical body 7. The cylinder 7 is urged in the direction from the base 2 to the tip 3 by a coil spring 9 disposed in the cavity 4. The flange 8 of the cylindrical body 7 is engaged with the step portion 6 so that the cylindrical body 7 does not come out of the tip portion 3. Further, the cylindrical body 7 protrudes from the front portion 3.

  The entire cylindrical body 7 enters the inside of the body 1 by contraction of the coil spring 9.

  A cored bar 10 that protrudes slightly from the tip 3 is fixed inside the body 1. The tip of the core metal 10 enters the inside of the cylindrical body 7. As shown in FIG. 6, the cylindrical body 7 protrudes from the core metal 10, and a nail is inserted into the cylindrical body 7 from the tip side.

  Hereinafter, with reference to FIG. 7, the usage method of the pushing tool 30 when attaching the hook 13 to the wall 14 is demonstrated.

  First, a nail 15 is inserted into the inside of the cylinder 7 from the tip side, and the tip of the cylinder 7 is applied to a nail hole 12 formed in the hook 13. Next, the body 1 is pressed against the wall 14 from this state. As a result, the cylinder 7 slides in the direction from the tip 3 to the base 2 against the tension of the coil spring 9 inside the body 1, and the nail 15 held inside the cylinder 7 is 7 is pushed out through the nail hole 12 of the hook 13 and into the inside of the wall 14. Thereby, the hook 13 is fixed to the wall 14.

  The conventional nail pusher 30 shown in FIGS. 6 and 7 has the following problems.

  In the conventional nail pusher 30, the cored bar 10 is configured not to protrude outward from the cylindrical body 7 when the nail 15 is pushed into the wall 14. For this reason, the nail 15 cannot always be driven deeply into the wall 14.

  Furthermore, since the front end surface of the cored bar 10 is a flat surface, when contacting the end surface of the nail 15, the surfaces slip and slide and the force for pushing the body 1 is not necessarily sufficiently transmitted to the nail 15. was there.

  The present invention has been made in view of the problems in such a conventional nail pushing tool, and it is possible to drive the nail deeply into the wall and to sufficiently transmit the force pushing the body to the nail. It aims to provide a nail pusher that can.

  Hereinafter, means for solving the above-described problems will be described using reference numerals used in “Embodiments of the Invention”. These reference numerals are added only for the purpose of clarifying the correspondence between the description of “Scope of Claim for Utility Model Registration” and the description of “Mode for Invention”. It should not be used for interpreting the technical scope of the invention described in “Claims”.

  In order to achieve the above object, the present invention provides a nail pusher (100) comprising a cylinder (110) and a cored bar (120), and the cylinder (110) includes the cylinder (110). A through hole (114) extending in the axial direction of the body (110) and opening at at least one end of the cylinder (110) is formed, and the peripheral wall of the cylinder (110) At least one long hole (115) extending in the axial direction is formed, the core bar (120) is formed to be slidable inside the through hole (114), and the core bar (120) A protrusion (123) that slides inside the elongated hole (115) is formed, and the protrusion (123) extends along the elongated hole (115) in the elongated core (115). When sliding to one end of the When the projection (123) slides along the long hole (115) to the other end of the long hole (115), the cylindrical body (110) is stored in the cylindrical body (110). A nail pushing tool (which has a length projecting to the outside, and a recess (124) with which the tip of the nail (130) can be engaged is formed at the tip of the core (120). 100, 200).

  A coil spring (140) for urging the metal core (120) in a direction opposite to the direction protruding from the outside of the cylinder (110) is disposed inside the cylinder (110). Is preferred.

  The core bar in the nail pusher according to the present invention is set to have a length that protrudes to the outside of the cylinder when the projection slides to the end of the slot along the slot of the cylinder. Yes. Therefore, unlike a conventional nail pusher, the nail can be driven into the wall to a sufficient depth.

  Further, a concave portion that can engage with the tip of the nail is formed at the tip of the cored bar. For this reason, when driving the nail into the wall, the contact force between the nail and the cored bar can be improved by engaging the tip of the nail with the concave part of the cored bar. Therefore, when the mandrel is pushed toward the wall, the force for pushing the mandrel is sufficiently transmitted to the nail, and the nail can be driven into the wall without wasting the pushing force.

(First embodiment)
FIG. 1A is a side view of a nail pusher 100 according to the first embodiment of the present invention, and FIGS. 1B and 3 are front views of the nail pusher 100. FIG. 2 is a cross-sectional view taken along line AA in FIG.

  As shown in FIGS. 1B and 2, the nail pusher 100 according to the first embodiment of the present invention includes a cylindrical body 110 and a cored bar 120.

  As best shown in FIG. 2, the cylindrical body 110 includes a first hollow cylindrical portion 111, a second hollow cylindrical portion 112, a first hollow cylindrical portion 111, and a second hollow cylindrical portion. The step part 113 which has connected the part 112 is comprised.

  One end 111 a of the first hollow cylindrical portion 111 is open, and a through hole having a constant diameter is formed inside the first hollow cylindrical portion 111.

  The outer diameter of the second hollow cylindrical portion 112 is smaller than the outer diameter of the first hollow cylindrical portion 111. Similarly to the first hollow cylindrical portion 111, one end 112a of the second hollow cylindrical portion 112 is open, and a through hole 114 having a constant diameter is formed inside the second hollow cylindrical portion 112. It is formed in the axial direction of the cylindrical body 110.

  The diameter of the through-hole 114 formed inside the second hollow cylindrical portion 112 is smaller than the through-hole formed inside the first hollow cylindrical portion 111, and a cored bar 120 described later. It is equal to the outer diameter of the rod-shaped body 121. For this reason, the cored bar 120 can move while sliding inside the through hole 114.

  The step 113 is formed by connecting the first hollow cylindrical portion 111 and the second hollow cylindrical portion 112 in a tapered shape from the first hollow cylindrical portion 111 toward the second hollow cylindrical portion 112. Connected to each other.

  Furthermore, two elongated holes 115 (see FIGS. 1A and 2) are formed in the peripheral wall of the first hollow cylindrical portion 111 at positions symmetrical to the axis of the cylindrical body 110. As shown in FIG. 2, the long hole 115 extends in the axial direction of the cylindrical body 110. Further, as shown in FIG. 1A, the long hole 115 has a spread angle of about 90 degrees around the axis of the cylinder 110 when viewed from the side surface of the cylinder 110.

  The cored bar 120 is composed of a rod-shaped body 121, a grip portion 122, and a protrusion 123.

  The rod-shaped body 121 is made of a solid metal rod, and has an outer diameter equal to the inner diameter of the through hole 114 formed in the second hollow cylindrical portion 112 of the cylindrical body 110. For this reason, the rod-shaped body 121 can slide inside the through hole 114.

  A grip portion 122 is formed at one end of the rod-shaped body 121 (the end portion on the opposite side to the end portion that fits inside the through hole 114). As will be described later, the user holds the grip portion 122 and pushes the pushing tool 100 toward the wall.

  Two protrusions 123 are formed on the outer periphery of the rod-shaped body 121 at positions symmetrical to the axis of the rod-shaped body 121. The protrusion 123 is fitted into each of the two long holes 115 formed in the peripheral wall of the first hollow cylindrical portion 111 of the cylindrical body 110 and is formed to be slidable along the long hole 115. .

  That is, the rod-shaped body 121 constituting the cored bar 120 has a through-hole formed in the second hollow cylindrical portion 112 of the cylindrical body 110 at the same time as the projection 123 formed on the outer periphery slides inside the long hole 115. It is comprised so that the inside of 114 may be slid.

  As shown in FIG. 1A, the grip portion 122 is configured to have a shape that does not interfere with the protrusion 123.

  When the projection 123 slides along the long hole 115 to the end of the long hole 115 (the end far from the second hollow cylindrical portion 112 of the cylindrical body 110), the rod-shaped body 121 constituting the core metal 120 is The cylindrical body 110 is housed in the second hollow cylindrical portion 112 of the cylindrical body 110 (see FIGS. 1B and 2), and the protrusion 123 extends along the long hole 115 at the end ( When it is slid to the second hollow cylindrical portion 112 of the cylindrical body 110, it has such a length that it protrudes outside from the second hollow cylindrical portion 112 of the cylindrical body 110. (See FIG. 3).

  FIG. 4 is an enlarged view showing the tip of the rod-shaped body 121.

  As shown in FIG. 4, an arcuate recess 124 is formed on the end face of the tip of the rod-shaped body 121. As will be described later, a nail head can be engaged with the recess 124.

  As described above, FIGS. 1B and 3 are both front views of the nail pusher 100. In FIG. 1B, the protrusion 123 extends along the long hole 115 (the end of the long hole 115). FIG. 3 is a front view of the cylindrical body 110 when it is slid to the far end from the second hollow cylindrical portion 112, and FIG. 3 is a plan view in which the protrusion 123 extends along the long hole 115. It is a front view when it slides to the part near the 2nd hollow cylindrical part 112 of the body 110).

  Hereinafter, a method of using the nail pusher 100 according to the present embodiment will be described with reference to FIGS.

  First, in a state before use, the protrusion 123 is slid to the end of the long hole 115 (the end far from the second hollow cylindrical portion 112 of the cylindrical body 110). FIG. 1B and FIG. 2 show this state.

  Next, as shown in FIGS. 1B and 2, the nail 130 is inserted from the outside into the through hole 114 formed in the second hollow cylindrical portion 112. In this state, at least the tip of the nail 130 is exposed to the outside from the second hollow cylindrical portion 112 of the cylindrical body 110.

  Next, the tip of the nail 130 is applied to a nail hole (see nail hole 12 in FIG. 7) formed in a hook (see hook 13 in FIG. 7) temporarily attached to the wall.

  Next, the user holds the handle portion 122 and pushes the entire core bar 120 toward the wall.

  At this time, the rod-like body 121 constituting the cored bar 120 has a projection 123 formed on the outer periphery thereof sliding inside the elongated hole 115 and at the same time, penetrating through the second hollow cylindrical portion 112 of the cylindrical body 110. The inside of the hole 114 is slid toward the wall.

  As the user pushes the core 120 into the wall, the nail 130 is pushed out of the cylinder 110 and the nail 130 is pushed through the hook nail hole and into the wall.

  Finally, when the projection 123 slides along the long hole 115 to the end of the long hole 115 (the end closer to the second hollow cylindrical portion 112 of the cylindrical body 110) (state of FIG. 3), the nail 130 is pushed over the entire length of the hook nail and wall.

  As a result, the hook is fixed to the wall via the nail 130.

  When the nail 130 is driven into the wall, since the nail 130 is held inside the through hole 114, the head of the nail 130 is further engaged with the recess 124 formed at the tip of the rod-shaped body 121. Is retained. For this reason, the axis of the nail 130 is hardly shaken, and the nail 130 is driven into the wall in a stable state.

  After driving the nail 130 into the wall, the projection 123 is slid along the long hole 115 to the end of the long hole 115 (the end far from the second hollow cylindrical portion 112 of the cylindrical body 110). To the state (the state shown in FIG. 1B and FIG. 2).

  According to the nail pusher 100 according to the present embodiment, the following effects can be obtained.

  In the bar-shaped body 121 of the cored bar 120 in the nail pusher 100 according to the present embodiment, the protrusion 123 is close to the end of the long hole 115 along the long hole 115 (the second hollow cylindrical portion 112 of the cylindrical body 110). And a length that protrudes to the outside of the cylindrical body 110 when it is slid to the end. For this reason, unlike the conventional nail pushing tool, the nail 130 can be driven into the wall to a sufficient depth.

  Further, a concave portion 124 with which the tip of the nail 130 can be engaged is formed at the tip of the rod-shaped body 121 of the cored bar 120. Therefore, when driving the nail 130 into the wall, the contact force between the nail 130 and the cored bar 120 can be improved by engaging and holding the tip of the nail 130 with the recess 124. Therefore, when the metal core 120 is pushed toward the wall, the force for pushing the metal core 120 is sufficiently transmitted to the nail 130, and the nail 130 can be driven into the wall without wasting the pushing force.

(Second embodiment)
FIG. 5 is a cross-sectional view of a nail pusher 200 according to the second embodiment of the present invention. FIG. 5 corresponds to FIG. 2 in the first embodiment.

  The nail pusher 200 according to the present embodiment further includes a coil spring 140 as compared with the nail pusher 100 according to the first embodiment.

  As shown in FIG. 5, in the nail pushing tool 200 according to this embodiment, an annular protrusion is formed on the inner wall of the cylindrical body 110 at the boundary between the first hollow cylindrical portion 111 and the stepped portion 113 of the cylindrical body 110. A spring stopper 111b having the shape is formed. A coil spring 140 is disposed between the spring stopper 111b and the protrusion 123, and the coil spring 140 is opposite to the direction in which the core metal 120 protrudes from the outside of the cylindrical body 110. The direction is biased in the direction from the second hollow cylindrical portion 112 toward the first hollow cylindrical portion 111.

  In the nail pusher 100 according to the first embodiment, after the nail 130 is driven into the wall, the protrusion 123 is formed along the long hole 115 at the end of the long hole 115 (the second hollow cylindrical portion of the cylindrical body 110). It was slid to the end far from 112) and returned to the initial state (the state shown in FIG. 1B and FIG. 2).

  On the other hand, in the nail pusher 200 according to the second embodiment, when the user releases the force of pushing the core bar 120 toward the wall, the core bar 120 is shown in FIG. 1 automatically returns to the state shown in FIG. 1B or FIG. Therefore, unlike the nail pusher 100 according to the first embodiment, the user does not need to return the cored bar 120 from the state shown in FIG. 3 to the state shown in FIG. 1B or FIG. The convenience of operation of the tool 200 can be improved.

  Various modifications can be made in the first and second embodiments described above.

  In the first and second embodiments described above, the through hole 114 is formed only in the second hollow cylindrical portion 112 which is a part of the cylindrical body 110, but the through hole 114 is the entire length of the cylindrical body 110. It is also possible to form over. When the through hole 114 is formed over the entire length of the cylindrical body 110, the cylindrical body 110 does not need to be divided into the first hollow cylindrical portion 111, the step portion 113, and the second hollow cylindrical portion 112, and Simply, it may be formed as a cylinder having an inner diameter equal to the outer diameter of the rod-shaped body 121.

  In the first and second embodiments, two long holes 115 and two protrusions 123 are formed, but the number of the long holes 115 and the protrusions 123 is not limited to two. It is sufficient that at least one long hole 115 and protrusion 123 are formed, and three or more long holes 115 and protrusions 123 may be formed.

FIG. 1A is a side view of a nail pusher according to the first embodiment of the present invention, and FIG. 1B is a front view of the pusher. It is sectional drawing in the AA of FIG. 1 (A). It is a front view of the pushing tool of the nail which concerns on 1st embodiment of this invention. It is an enlarged view which shows the front-end | tip of the rod-shaped body in the nail pushing tool which concerns on 1st embodiment of this invention. It is sectional drawing of the pushing tool of the nail which concerns on 2nd embodiment of this invention, and is a figure corresponding to FIG. 2 in 1st embodiment. It is sectional drawing of the conventional nail pushing tool. It is sectional drawing which shows the use condition of the conventional nail pushing tool shown in FIG.

Explanation of symbols

100 Nail pushing tool 110 according to the first embodiment of the present invention 110 Cylinder 111 First hollow cylindrical portion 111a One end 111b of the first hollow cylindrical portion Spring stopper 112 Second hollow cylindrical portion 112a Second One end 113 of the hollow cylindrical portion 113 Step portion 114 Through hole 115 Long hole 120 Core metal 121 Rod-shaped body 122 Handle portion 123 Protrusion 124 Recess 130 Nail 140 Coil spring 200 Pushing the nail according to the second embodiment of the present invention Ingredients

Claims (2)

A nail pusher consisting of a cylinder and a core,
A through-hole extending in the axial direction of the cylindrical body and opening at at least one end of the cylindrical body is formed inside the cylindrical body, and a peripheral wall of the cylindrical body is formed with the axial direction At least one elongated hole is formed,
The cored bar is formed to be slidable inside the through hole, and the cored bar is formed with a projection that slides inside the elongated hole,
When the protrusion slides to one end of the long hole along the long hole, the core metal is housed in the cylindrical body, and the protrusion is formed along the long hole in the long hole. When sliding to the other end, it has a length that protrudes outside the cylinder,
A nail pusher in which a concave portion in which a tip of the nail can be engaged is formed at a tip of the core metal. 2. The nail according to claim 1, wherein a coil spring that urges the cored bar in a direction opposite to a direction protruding from the outside of the cylindrical body is disposed inside the cylindrical body. Pusher.

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