Nail tip guide tool for nailing machine

Abstract

It is difficult for the existing nailing machine to correctly maintain the posture of the nail being driven, resulting in problems such as the nail being bent and installed at an angle when being driven and fixed, and the situation that it is difficult to easily fasten the nail to the circular guide hole for nail fastening when the installation material is a metal part or the like. The nail tip guide tool of the present invention, whose lower part is in the shape of a funnel, is installed at the end of the head of the nailing machine, and a plurality of guide members are arranged on the bottom surface of the inner side thereof. The guide members are formed so that when the guide members are gathered at the center of the funnel shape by the pressure plate member urged by the coil spring, the upper surface of the guide members is formed into a mortar-shaped depression. By using the guide members, the front end of the nail in the head in an inclined posture is guided to the central part of the mortar shape and inserted therein, so that the posture is corrected. In addition, when fastening the nail to the metal part or the like, by forming a structure in which the front end of the plurality of guide members is conical, the part is inserted into the guide hole of the metal part and the nail is driven in, so that the operation can be easily completed.

Description

Technical Field

[0001] The present invention relates to a device for making the posture of a driven nail in a nail driving machine become a desired posture. Background Art

[0002] Nailers that use a driver (strike rod) connected to a piston driven by compressed air to drive nails out of an ejection port are widely used. The nails to be driven out are stored in a plurality of connected states in a nail magazine provided at the bottom of the nailer, and are fed one by one into the nose to be driven out in sequence.

[0003] However, in this type of nailing machine, since the inner diameter of the machine head is larger than the outer diameter of the head of the nail to be driven out, the nail is mostly inclined relative to the axis of the machine head. If the nail is driven in using a driver, it is often driven in while being inclined to the installation material. Problems often occur such as the nail being installed in a bent state after the installation material is installed.

[0004] In order to solve the above-mentioned problems, various methods have been proposed, for example, as shown in the following prior art documents.

[0005] Patent Document 1: Japanese Patent No. 5340812 (P5340812)

[0006] Patent Document 2: Japanese Patent No. 4348995 (P4348995) Summary of the invention

[0007] The invention related to the nail driving machine described in Patent Document 1 provides a structure for driving the driving nail vertically into the installation material without being tilted at the front end of the nail driving machine related to the nail tip guide tool of the present invention.

[0008] In addition, the guiding mechanism described in Patent Document 2 has the following characteristics: the guiding mechanism is arranged to apply force to a ratchet component formed by an inclined surface and an inducing surface in such a manner that the inducing surface enters the ejection port, the inclined surface inducing the front end of the nail into the ejection port, and the inducing surface inducing the front end of the nail shaft toward the center of the ejection port, forming a guiding protrusion downward into which a nail hole of a construction metal part such as a reinforcing metal object is inserted as the installation material, so that the front end of the nail can be driven in and tightened along the guiding protrusion.

[0009] However, the nailing machine described in the above patent document 1 has the problem that the structure is large-scale and the nail cannot be corrected due to the inclination direction. The mechanism described in patent document 2 has the problem that the structure of the ejection port is complicated and the device is also easy to be large-scale. In addition to the above, there are many other proposals, but all of them have advantages and disadvantages, and there are still problems in practicality.

[0010] An object of the present invention is to provide a guide device that has a simple structure and can reliably correct the inclination of a nail.

[0011] In order to solve the above problems, the present invention adopts Figure 1 The structure shown. A nail tip guide tool 8 formed of a funnel-shaped container member 9 is installed at the end of the machine head 5. The funnel-shaped container member 9 has openings at the upper and lower ends that are equal to or larger than the inner diameter of the machine head, is hollow, and has a funnel shape at the lower part. In order to correct the front end of the nail that has passed through the machine head and is driven out in an inclined posture to a vertical posture, the following configuration is formed on the inner inclined bottom surface 12 of the funnel-shaped container member 9: a plurality of guides 14 are brought into a state where the center part is gathered together in a circular shape, and a mortar-shaped recess 17 is formed on the upper surface part of the plurality of guides 14, so that the front end of the inclined nail is guided to the center of the mortar-shaped lower part and the nail is inserted into the center part of the gathered guides, thereby the plurality of guides are pushed and spread in the left and right directions.

[0012] The inclined bottom portion 12 of the funnel-shaped container member and the bottom surface of the guide connected thereto are each formed as an inclined surface with the center side lowered, and a hollow annular pressing plate 16 ( Fig. 9 ), a coil spring 15 for pressing the pressing plate 16 downward is provided on the upper surface of the pressing plate 16, thereby applying force to the plurality of guides in a direction in which the plurality of guides are contracted toward the central portion.

[0013] By making the lower end of the guide protrude further downward than the lower end of the funnel-shaped container member with a conical portion 23, when driving the guide into a member that is used for reinforcing metal objects of a building and has a guide hole 20 formed in advance, the portion protruding toward the guide hole is made to work as a nail tip simulation portion, so that the conical portion 23 is inserted into the guide hole 20 and then driven in, thereby making it easy to install. Conversely, by making the lower end of the guide be located at the same position as the lower end of the funnel-shaped container member or at a position higher than the lower end of the funnel-shaped container member, it is easy to achieve fixing by driving into a commonly used flat installation material. (Refer to Figure 1 , Figure 2 )

[0014] Effects of the Invention

[0015] As described above, a hollow container-shaped funnel-shaped container member 9 is screwed into the lower end of the machine head, and a plurality of guides can be expanded / contracted in the radial direction, respectively, and a hollow annular pressure plate member ( Fig. 9) is set in a state where a force is applied to the contraction side, so that the nail in the head portion 5 is guided to the center side of the passage by the guide member and corrected in a manner such that it passes through the center portion of each guide member. Preferably, the number of guide members constituting the nail tip guide portion in this case is 3 or 4.

[0016] As shown above, by targeting various nailing machines Figure 3 As can be clearly seen from the cross-sectional view, the nail tip guide tool 8 ( Fig.16 ), and when installing to a metal reinforcing metal member 19 which is a structural object often used in buildings and is used to reinforce the installation material, it is possible to use the above-mentioned guide member ( Figure 2 ) and can easily and efficiently perform work. In addition, by using Figure 1 The nail tip guide tool 8 with a cross-sectional shape can vertically and correctly drive various nails of commonly used nailable installation materials into the nailable base material without bending, which has a convenient effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view, a side view, and a top surface perspective view and a bottom surface perspective view of the nail tip guiding tool used in Example 1.

[0018] Figure 2 It is a cross-sectional view, a side view, and a top surface perspective view and a bottom surface perspective view of the nail tip guiding tool used in Example 2.

[0019] Figure 3 It is a cross-sectional view of the A1 - A2 portion of the nail tip guiding tool showing the state at time a (when nail driving starts) in the operation process of Example 1, and a position plan view of the guide 14 .

[0020] Figure 4 It is a cross-sectional view of the A1 - A2 portion of the nail tip guiding tool showing the state at time b during the operation process of Example 1, and a position plan view of the guide 14 .

[0021] Figure 5 It is a cross-sectional view of the B1 - B2 portion of the nail tip guiding tool showing the state at time c during the operation process of Example 1, and a position plan view of the guide 14 .

[0022] Figure 6 It is a cross-sectional view of the C1 - C2 portion of the nail tip guiding tool showing the state at time d during the operation process of Example 1, and a position plan view of the guide 14 .

[0023] Figure 7 It is a cross-sectional view of the C1 - C2 portion of the nail tip guiding tool showing the state at time e during the operation process of Example 1, and a position plan view of the guide 14 .

[0024] Figure 8 It is a cross-sectional view of the A1 - A2 portion of the nail tip guiding tool showing the state at time f (when the nail driving and fixing is completed) in the operation process of Example 1, and a position plan view of the guide 14 .

[0025] Fig. 9 It is a top view of the upper surface, a top view of the lower surface, a side view, and a cross-sectional view of the hollow ring-shaped pressure plate.

[0026] Fig.10 It is a cross-sectional view of the D1 - D2 portion of the nail tip guiding tool showing the state at time a (when nail driving starts) in the operation process of Example 2, and a position plan view of the guide 14 .

[0027] Fig.11 It is a cross-sectional view of the E1 - E2 portion of the nail tip guiding tool showing the state at time b during the operation process of Example 2, and a position plan view of the guide 14 .

[0028] Fig.12 It is a cross-sectional view of the F1 - F2 portion of the nail tip guiding tool showing the state at time c during the operation process of Example 2, and a position plan view of the guide 14 .

[0029] Fig.13 It is a cross-sectional view of the D1 - D2 portion of the nail tip guiding tool showing the state at time d (when the nail driving and fixing is completed) in the operation process of Example 2, and a position plan view of the guide 14 .

[0030] Fig.14 These are top and side views of a type in which the front end of the guide is conical.

[0031] Fig.15 The front end of the guide is a top view and a side view of a common type.

[0032] Fig.16 It is a schematic diagram showing that the nail tip guiding tool of the present invention is installed on a nail driving machine.

[0033] Fig.17 is a side view of a coil spring. DETAILED DESCRIPTION

[0034] In the following drawings, the piston side is set to be the top and the nail driving head side is set to be the bottom for description, but the same is true for the horizontal and oblique situations.

[0035] Fig.16The figure schematically shows the whole structure of the nail driving machine 1, in which a body 3 is provided in front of a gripping part 2 connected to a gas supply source, and a piston actuated by compressed air and a driver member (strike rod) 4 for striking are built into the body 3.

[0036] A head 5 constituting a nail passage for driving is provided at the lower part of the body 3, and a supply port for replenishing nails as driving materials is provided at the side of the head 5. The nails 6 are stored in a nail magazine 7 as a collection of nails connected one by one, and when moving into the head, the connection is cut off and the nails are driven into the installation material from the driving port below the head in a state of being separated one by one.

[0037] Example 1

[0038] Figures 3 to 8 This is a diagram showing "Example 1", in which a nail tip guide tool 8 is installed at the end of the machine head 5 via a cover member 10 of a funnel-shaped container member constituting a "nail tip guide tool 8" when a mounting material made of a commonly used wooden material is fastened to a base structural material or the like by nails. Figure 1 In the embodiment, the funnel-shaped container member 9 is connected to the cover member 10 of the funnel-shaped container member by using the thread 26 provided at the upper end thereof, and then serves as the nail tip guide tool 8. Figure 3 The nail tip guide tool is screwed together with the screw thread 11 provided on the outer peripheral portion of the lower end of the nose portion 5, so as to be installed. Since it is detachably provided like this, it is possible to remove the part when necessary, so the exchange and repair of the "nail tip guide tool" main body, the guide, etc. are convenient.

[0039] A downwardly inclined bottom surface 12 is provided at the bottom of the funnel-shaped container member 9. The angle of the inclined bottom surface is approximately 45°, and the angle of the outer inclined surface is also set to 45°. An opening 13 serving as a passage for the nail is provided at the center of the bottom of the funnel-shaped container member 9. The opening 13 is formed to be slightly larger than the diameter of the nail head.

[0040] A nail tip guide 14 is placed on the funnel-shaped container member 9. The guide 14 is a fan-shaped four-piece ( Figure 3 ), whose upper surface is pressed by a hollow annular pressing plate 16 connected via a cover member 10 of a funnel-shaped container member and a coil spring 15, and the inclined bottom surface of the funnel-shaped container member 9 and the inclined lower end surface of the guide member 14 are supported so as to be movable in a close contact state, and a concave rail L ( Fig. 9 ) and the convex portion F ( Fig.15 ) can slide against each other, so that the four guides are gathered together on the circumference.

[0041] A mortar-shaped recess 17 is formed in the center of the upper surface of the four guides assembled on the circumference, and in the case of the first embodiment, a through hole 24 having a diameter smaller than the shaft diameter of the driven nail 6 is provided in the center of the recess to penetrate to the lower surface of the assembly of the guides 14. The through hole 24 has the following effects: when the front end of the nail 6 driven from the head 5 in an inclined posture slides along the inclined surface of the mortar shape to the center of the mortar shape, the front end of the nail 6 can be easily inserted, and the through hole 24 also has the following excellent effect: when the nail shaft and the nail head 21 are to push the four guides 14 to the left and right, the size to be expanded is reduced by an amount corresponding to the size of the hole diameter.

[0042] Example 2

[0043] In this example, if Figure 2 As shown, the lower end of the guide 14 protrudes downward through the opening 13 of the bottom surface of the funnel-shaped container member. The conical protrusion of the guide 14, i.e., the conical portion 23, is inserted into the guide hole 20 of the L-shaped reinforcing metal member 19 for installing the reinforcing structural material 18 and positioned, and is fixed by driving a nail 6 with a nailing machine. (See Figures 10 to 13 )

[0044] like Fig.13 As shown at the time d, when the nail tip guide tool 8 of the present invention does not have a nail 6, all guides 14 gather toward the center to form a circle, and the guides are gathered together. In this state, a mortar-shaped recess 17 is formed on the upper surface, and the nail 6 entering from the upper head 5 in an inclined posture is guided to the center along the inclined surface of the recess 17. (See Fig.10 )

[0045] Since the upper end of the nail 6 is pressed downward by the driver member 4, the front end of the nail 6 enters the center portion ( Fig.11 As a result, the nail axis becomes vertical, and at this time, the plurality of guides are pushed and spread to the left and right as a whole, so that each guide 14 rises along the inclined bottom surface 12 of the funnel-shaped container member 9.

[0046] Since the front end of the nail 6 is sharp, it is easy to enter the center of the plurality of guides gathered together, but there is no problem even if it is not so sharp. In this state, if the pressing of the nail 6 by the driver member 4 progresses, the nail 6 enters the installation material through the opening 13, and then the flange-shaped nail head 21 is driven in until it is coplanar with the surface of the reinforcing metal member 19. ( Fig.12 c moment).

[0047] The upper surface of the guide 14 is pressed by a pressing plate 16 connected via the inward flange-shaped cover member 10 of the funnel-shaped container member 9 and the coil spring 15, and the inclined bottom surface 12 of the funnel-shaped container member 9 and the inclined lower end surface of the guide 14 are supported so as to be movable in a close contact state. The concave rail L provided on the lower surface of the pressing plate 16 and the convex portion F provided on the upper surface of the guide can slide with each other, so that the plurality of guides 14 can be aligned and expanded / contracted.

[0048] As described above, the nail tip guiding device according to the present invention can maintain the posture of the nail to be driven in a desired posture while having a relatively simple structure.

[0049] Description of the label

[0050] 1 Schematic diagram of a pneumatic nailing machine.

[0051] 2 Grip of the compressor's air hose.

[0052] 3 The body of the nailing machine.

[0053] 4 Driver for driving nails.

[0054] 5 The head of the machine tool forms a passage for driving nails.

[0055] 6 Drive the nails in.

[0056] 7 A nail magazine portion for connecting nails.

[0057] 8. The nail tip guiding tool of the present invention.

[0058] 9 Funnel-shaped container component.

[0059] 10. Cover member of the funnel-shaped container member.

[0060] Reference numeral 11 is used for providing a thread on the cover member corresponding to the thread provided on the outer peripheral portion of the lower end of the nose portion 5 .

[0061] 12 An inclined bottom surface portion in the bottom of the funnel-shaped container member.

[0062] 13 An opening at the center of the bottom of the funnel-shaped container member.

[0063] 14 Guides.

[0064] 15 Coil spring.

[0065] 16 Hollow ring-shaped pressure plate.

[0066] 17 A mortar-shaped guide recess formed by combining a plurality of guide members.

[0067] 18 Install the base structural material of the L-shaped reinforcement metal.

[0068] 19 Strengthening metal parts.

[0069] 20 A circular hole provided in the reinforcing metal piece for driving a nail into a fixed position.

[0070] 21 Nailhead.

[0071] 22 The surface of the base material when installing the reinforcing metal parts.

[0072] 23 The conical front end portion at the lower end of the guide required for attaching reinforcement metal parts, etc.

[0073] 24 The guide has a mortar shape and a through hole of a small diameter is formed through the center portion.

[0074] 25 Nail axis.

[0075] 26 Screws provided on the funnel-shaped container member 9 and the cover member of the funnel-shaped container member for screwing them together.

[0076] L is a concave rail arranged on the lower surface of the pressure plate.

[0077] F is a convex portion provided on the upper surface of the guide.

[0078] Y is a spiral spring receiving groove provided on the upper surface of the hollow annular pressure plate.

[0079] P: Coil spring receiving groove in the cover member 10 of the funnel-shaped container member.

Claims

1. A nail tip guiding tool for a nailing machine, characterized in that: The nail tip guide tool (8) is installed at the front end of a machine head (5) constituting a passage for driving various nails (6) from a nailing machine (1), and is constructed as follows: a guide member formed as follows is used, that is, a guide member in which a mortar-shaped recess (17) is formed in the central part of the upper surface of the plurality of guide members when the plurality of guide members (14) are gathered to the central part of the inclined bottom surface (12) of the funnel-shaped container member (9); after the convex part (F) provided on the outer peripheral part of the upper surface of the guide member is embedded in the concave rail (L) provided radially on the lower surface of the hollow annular pressing plate (16), a circular groove (Y) for supporting a coil spring provided on the upper surface of the pressing plate and a circular groove (P) for supporting a coil spring provided on the lower surface of the cover member (10) of the funnel-shaped container member (9) are provided. A coil spring (15) with expansion elasticity is embedded in both, and the cover member (10) of the funnel-shaped container member and the funnel-shaped container member (9) are installed through the threads (26) provided on the two, and then the nailing machine (1) is engaged with the nail tip guiding tool (8) by using the threads (11) provided on the cover member (10) of the funnel-shaped container member in a manner corresponding to the threads provided at the outer peripheral portion of the front end of the head portion (5) of the nailing machine (1), so that the front end of the nail (6) driven out from the head portion (5) in an inclined posture is guided to the central portion of the mortar-shaped recess (17) and is continuously pressed into the position of the central portion, so that the plurality of guides are in a state of clamping the nail shaft portion around the driven nail while being pushed to the left and right, thereby achieving the effect of correcting the posture of the nail to be vertical.

2. The nail tip guide tool for a nailing machine according to claim 1, wherein: The inclination angle of the inclined bottom surface portion (12) of the funnel-shaped container member (9) is approximately 45 degrees, and the number of the plurality of guides is three.

3. The nail tip guiding tool for a nailing machine according to claim 1 or 2, characterized in that: A through hole (24) having a smaller diameter than the shaft diameter of a nail to be used is provided from the bottom of the center of a mortar-shaped recess formed by gathering a plurality of guides at the center to the lower end of the plurality of guides.

4. The nail tip guiding tool for a nailing machine according to any one of claims 1 to 3, characterized in that: When the guides are gathered at the center, the lower end of the gathered guides becomes conical, and the conical portion (23) protrudes from the lower end of the funnel-shaped container member (9).

5. The nail tip guiding tool for a nail driving machine according to any one of claims 1 to 3, wherein: When the guide members are gathered to the center, the lower ends of the gathered guide members are coplanar with the lower end of the funnel-shaped container member (9), or extend above the lower end of the funnel-shaped container member (9).

6. A nailing machine with a nail tip guide tool, The nail tip guiding tool according to any one of claims 1 to 5 is mounted on a head of a pneumatic nailing machine.

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