JPS625896Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention allows the driver to be pulled up against the elastic tension of the spring by pushing down the driver operating handle, and the pulled-up driver to be pulled up by the elastic tension of the spring. In a nail driving tool that drives a nail into a material to be driven by lowering the nail, the driving depth of the nail into the material to be driven is variably adjusted according to the unevenness on the surface of the material to be driven. This invention relates to a nail driving depth adjusting device.

Conventionally, this type of nail driving tool has been used for fixing decorative plywood to a board.

Depending on the fixing method, the nails may be driven into the decorative plywood on a flat surface or in a V-shaped groove patterned on the surface of the decorative plywood. can be,
The nail driving location is not necessarily determined.

By the way, in the above conventional nail driving tool,
The stroke of the driver is constant, and the protrusion length of the tip of the driver from the lower end surface of the magazine device provided on the back side of the lower end of the tool body, that is, the base surface that contacts the surface of the material to be driven, is constant. In this way, if the protruding length of the driver tip is constant, the location where the nail is driven into the flat part of the decorative plywood will be such that if the nail is driven into the flat part of the plywood, the nail will float above the surface of the plywood. This does not happen and the nail can be driven all the way to the end, but when driving the nail into the groove, it is necessary to keep the contact base surface of the magazine device in contact with the surface of the flat part of the plywood. In order to do this, it is not possible to drive the nail all the way into the bottom of the pressure groove, and the actual situation is that the nail driving operation is completed with the nail floating.

Therefore, the present invention was proposed in order to eliminate the above-mentioned conventional drawbacks, and the projecting length of the tip of the driving driver is variably adjusted according to the shape of the surface of the driven material. It is an object of the present invention to make it possible to variably adjust the driving depth of a nail into a filling material.

The gist of the present invention is to provide a nail driving tool in which an elongated magazine device having a base surface for contacting the surface of the material to be driven at the lower end is provided on the back side of the lower end of the tool body. A driving depth adjusting member that protrudes from the surface and can be slid and stopped along the longitudinal direction of the magazine is attached to the magazine, and the tip of the driving driver is adjusted by variable operation of the setting position of the adjusting member with respect to the magazine. This feature is characterized in that the length of the protrusion can be variably adjusted.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

As shown in FIG. 1, a main casing 2 serving as a main body of the nailing machine is disposed vertically on the front side of a nailing machine 1, which is an example of a nailing tool according to the present invention. A driver driving lever 4 for reciprocating the plate-shaped driving driver 3 along the front inner wall 2A of the casing 2 is disposed within the main casing 2. This lever 4 is rotatable about a pivot 5 provided in the casing 2 as a fulcrum. That is, the tip 4a of the lever 4 is engaged with the hole 7 of the driver operating block 6 which is integrally connected to the upper end 3a of the driver 3.
When the lever 4 rotates clockwise in FIG. 1 about the pivot 5, the driver 3 is pulled up along the main casing inner wall 2A, and
When the lever 4 rotates counterclockwise in FIG. 1, the driver 3 descends along the inner wall 2A of the main casing. A bumper member 8 is disposed within the main casing 2 to receive the lever 4 at the bottom dead center position when the lever 4 rotates counterclockwise in FIG. This bumper member 8 is formed of a rubber material so as to be able to absorb the impact force when the lever 4 hits it.

The driver operation handle 9 for pulling up the driver 3 via the driver drive lever 4 has its base end 9b attached to the support shaft 10 so that its tip 9a protrudes diagonally upward to the right in FIG. It is pivotally supported by the main casing 2.

A starting lever 11 is interposed between the operating handle 9 and the driver driving lever 4. The starting lever 11 rotates the lever 4 clockwise in FIG. 1 by pushing down the handle 9. .

This starting lever 11 is provided with a center portion 13c of a movable shaft 12 of the lever 11, and a torsion coil spring 13 whose both ends 13a and 13b are engaged with the upper wall 9A inside the operating handle 9. The V-shaped cutout groove 14, which is always urged in the direction of arrow A in FIG. It engages with a locking step 15 formed on the side outer peripheral edge. That is, since the starting lever 11 is constantly biased in the direction of arrow A in FIG. It is pressed down and held until the one end 11a of the starting lever 11 passes over the locking step 15 of the driver driving lever 4.

On the other hand, large-diameter and small-diameter compression coil springs 16 and 17 that apply a downward force to the driver 3 by rotating the driver driving lever 4 in the counterclockwise direction in FIG. It is arranged in a cylindrical storage chamber 20 configured by forming bulges with semicircular cross sections facing each other on the surfaces 18 and 19. One end 16a, 17a of each of the springs 16, 17 is connected to one end side of the storage chamber 20, that is, one notch edge 2.
The other ends 16b and 17b are received by the fixing block 22 placed on the housing chamber 20, that is, the other notch edge 2.
It is received by a movable block 24 that abuts on 3. That is, when the driver driving lever 4 rotates clockwise in FIG.
The spring operating protrusion 25 protruding from the movable block 24 is compressed by pressing the cylindrical part 26 protruding from the upper surface of the movable block 24 in the direction of arrow B in FIG.

A cylindrical body 27 is implanted in the fixing block 22 to guide the inner circumference 17A of the small-diameter compression coil spring 17. The diameter of the tip 27a side of this cylindrical body 27 is reduced, and the tip 27a side of this cylindrical body 27 is reduced in diameter.
7a is fitted into a concave portion 28 having a circular cross section formed in the movable block 24 so as to be able to protrude and enter freely. Further, the other end 17b of the small diameter compression coil spring 17 engages with an annular groove 29 carved in the bottom surface 24A of the movable block 24,
Positioned.

Further, a magazine device 30 is provided on the back side of the lower end of the main casing 2 to load nails 101, 101, . . Note that the adjacent portions of the nails 101, 101, . . . are connected to form a connecting nail 110.

This magazine device 30 is fixed to the main casing 2 and the rear end 5 of the grip portion 50.
A long magazine body 31 extending to the 0b side
, a contact base 32 that is slidable along the lower end 31A of the magazine body 31, and nails 101 and 10 loaded in the magazine body 31.
1... is also comprised of a pusher 33 that presses against the nail driving portion 60 formed at the front end inside the main casing 2. Pushsha 33 above
By sliding the contact base 32 toward the rear end 31b of the magazine body 31, the protrusions 34, 34 protruding from the inner wall on the tip 32a side of the contact base 32 are moved toward the pusher 3.
3, and engages with the lower edge 33A of the magazine body 3.
1 against the elastic force of the compression coil spring 35. In this way, the contact base 32 is connected to the rear end 31b of the magazine body 31.
When you slide the magazine body 3 in the
1 is open, and the nails 101, 101... can be loaded into the magazine body 31 from the head 102, 102... side. That is, the nail 101,1
01... can be loaded from the bottom of the magazine body 31. Therefore, nails 101, 101
It is easy to load the nails 101, 101, .

The contact base 32 has a second
As shown in the figure, the lower end surface 51A is the lower end surface of the contact base 32 (hereinafter abbreviated as base surface).
A slider 51 having a C-shaped cross section and serving as a driving depth adjusting member that protrudes from the contact base 32A and is slidable along the longitudinal direction of the contact base 32 is assembled. Both sides 32B and 32C of the contact base 32 have tips 32 of the base 32.
Concave guide grooves 52, 52 extend from a to the vicinity of the rear end 32b while maintaining levelness with the base surface 32A. Both ends 51a and 51b of the slider 51 are fitted into the guide grooves 52 and 52, and the slider 51 can freely reciprocate from the tip 32a of the base 32 to the vicinity of the rear end 32b. It can be stopped at any position within the guide grooves 52, 52.

That is, as shown in FIG.
When driving the nail 101 into the flat surface portion 100A, the slider 51 is inserted into the guide grooves 52, 52
from the rear end 32b side of the base 32 along the tip 32
Pull it out to the a side. Then, with the driver 3 located at the lower end, the tip 3b of the driver 3 protrudes from the lower end surface 51A of the slider 51 by a length a that allows the nail 101 to be completely driven into the flat surface portion 100A.

Further, as shown in FIG. 3, when driving the nail 101 into the V-shaped groove portion 100B of the driven material 100, the slider 51 is inserted into the guide grooves 52 and 5.
2 from the tip 32a side of the base 32 to the rear end 3
Store it on the 2b side. Then, with the driver 3 located at the lower end, the tip 3a of the driver 3
protrudes from the base surface 32A by a length b that allows the nail 101 to be completely driven into the groove portion 100B.

Therefore, when driving the nail 101 into the flat surface portion 100A of the material to be driven 100, as shown in FIG. Flat surface part 10
0A and the tip 32a side is brought into contact with the flat surface portion 100A of the workpiece surface 100 via the slider 51, that is, the nailing machine 1
Carry out the driving work with the entire part tilted slightly backwards.

Further, the nail 101 is inserted into the concave groove portion 1 of the driven material 100.
00B, as shown in FIG.
The b side is brought into contact with the flat surface portion 100A of the workpiece 100 via the slider 51, and the tip 32
The driving operation is performed with the a side in contact with the flat surface portion 100A located around the groove portion 100B, that is, with the entire nail gun 1 slightly tilted forward.

In addition, as shown in Fig. 4, the contact base 3
The lower end surface 51 of the slider 51 is located halfway in the longitudinal direction of the slider 51.
If a slider accommodating portion 53 is formed in which the slider 51 can be pushed into the contact base 32 so that A is flush with the base surface 32A, the driving depth of the nail 101 by the slider 51 is not required. The nail gun 1 can also be used for driving work.

Further, as shown in FIG. 5, dowels 54, 54 are provided protrudingly from both ends 51a, 51b of the slider 51, and the dowels 54, 54 are provided in the guide grooves 52, 52.
Fitting recesses 55a, 55b, 55 that fit and hold 4.
If the marks c... are carved at predetermined intervals, when the slider 51 is slid along the guide grooves 52, 52, the slider 51 can be fixed to the base 32 with a click. The driving depth of the nail can be adjusted to suit various irregularities formed on the surface of the material to be driven.

As described above, according to the present invention, the protruding length of the driving driver tip during nail driving can be variably adjusted, so the driving depth of the nail can be adjusted according to the shape on the surface of the material to be driven. Can be adjusted.

In other words, the nail can be completely driven into the concave portion as well as the flat surface portion of the material to be driven.

In addition, the above-mentioned variable adjustment of the protruding length of the tip of the nail driving driver is performed by sliding the adjustment member on the bottom surface of the magazine along the guide groove of the magazine to adjust the driving depth. The nail driving tool and the lower surface of the magazine can be maintained in a spaced apart state similar to that of conventional devices, and a driving depth adjustment function can be added without impairing the conventional functions of nail driving tools.

[Brief explanation of the drawing]

Fig. 1 is a schematic side sectional view of a nailing machine showing an embodiment of the present invention, Fig. 2 is an enlarged sectional perspective view taken along the line A-A in Fig. 1, and Fig. 3 is a concave groove portion of the material to be driven. Fig. 4 is an enlarged side view showing the main parts of another embodiment of the present invention, and Fig. 5 is an enlarged side view showing the main parts of still another embodiment. It is. 1... Nailer, 2... Main casing, 3...
...Driver for driving, 3a...Tip, 30...Magazine device, 32...Contact base, 32A...
...Base surface, 51...Slider, 52, 52...
guide groove.

Claims (1)

[Scope of utility model registration request] In a nail driving tool in which a long magazine device is provided on the back side of the lower end of the tool body, the magazine device has a long magazine device having a base surface that contacts the surface of the material to be driven at the lower end, and the magazine device protrudes from the base surface and extends in the longitudinal direction of the magazine. A driving depth adjusting member that can be slid and stopped along the magazine is assembled to the magazine, and the protruding length of the tip of the driving driver can be variably adjusted by variably operating the setting position of the adjusting member with respect to the magazine. A nail driving depth adjusting device for a nail driving tool, characterized in that: