JPH065092Y2 - Stopper holding device for driving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Utilization of the Invention] The present invention relates to a device for holding a stopper in a driving portion of a driving machine for driving the stopper.

[Background of the invention]

Conventionally, a driving machine, in particular, a driving machine which drives a stopper by a large number of impacts, has a stopper 2 inside a driving section 6 located below a driving machine body 1 as shown in FIG. After preparing and charging at
This is a structure in which the driving tool main body 1 is pressed with one or both hands, and the stopper 2 is driven into the mating member 5 by a driver inside the main body (not shown). Although not shown as another example, there is a method of driving by a trigger instead of pressing the main body, but the preparation of the stopper is the same as that described above.

The structure of the launching part 6 of the driving machine shown in FIG. 7 is shown in FIG. In FIG. 8, the stopper 2 has the stopper head 2a inserted into the guide 7 of the embossing section 6, and the stopper tip 2c is brought into contact with the mating member 5 to be pressed, and the main body is pushed from above. By attaching it, the piston 9 integrated with the driver 8 moves upward, the pressure applied to the cylinder 10 circumscribing the piston 9 is changed, and the reciprocating motion of the piston 9 strikes and hits the stopper multiple times. .

Further, a magnet 13 for adsorbing and fixing the stopper 2 is provided at the tip of the guide 7 in the driving portion 6, so that the stopper head 2a of the adsorbed stopper 2 can be stored on the inner surface of the guide 7. ,
A recess 15 and a tapered surface 14 are provided.

However, in these conventional examples, when the stopper 2 is launched (9th embodiment)
Figure) Stopper head 2a and magnet 13 come into contact, and therefore magnet 1
3 had a defect that it was damaged or the adhesion was lost.

Further, since the stopper 2 is fixed only by the attraction by the magnet 13, the stopper 2 has a defect that the stability is poor and the operability is poor.

[Purpose of device]

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to make the attraction and fixation by a magnet more reliable, to provide a safe driving tool with good operability, and to directly connect the magnet and the stopper head. This is to prevent contact and prevent damage to the magnet 13 and improve the life of this portion.

[Outline of device]

The present invention provides a groove on the inner side surface of the guide at the position where the magnet is located in the same direction as the direction in which the fastener is driven, so that the fastener can be attracted and held in a more stable state. In addition to devising the shape of the embossed portion, the shape of the groove and the like have been devised so that the head of the stopper does not directly contact the magnet when the stopper is ejected.

[Example of device]

FIG. 1 and FIG. 2 show an enlarged view of a stopper holding device for a driving section of a driving machine according to the present invention.

In the figure, the driving machine has a driver 8 integrated with a piston 9 inside the main body 1. The upper part of the main body (not shown) has the same structure as that of the conventional technique. The drive-out section 6 is provided with a stopper (not shown) and guides the driver 8, and the guide 7
It includes an insert 11 that incorporates the main body 1 and a spring 12 that presses the guide 7 in the driving direction. Further, a concave portion 15 for accommodating the stopper head 2a and a tapered surface 14 are provided inside the guide 7, and the tapered surface 1 is further provided.
A magnet 13 for attracting the stopper shaft portion 2b is provided below 4. Further, a vertical groove 17 is provided at the position of the magnet 13 on the inner wall 18 of the guide 7 in the fastener driving direction, and the horizontal width of the vertical groove 17 is, as shown in FIG. The width of the stopper head 2a is set smaller than the diameter of the stopper head so that the stopper head 2a cannot be stored.

When the stopper 2 is loaded into the guide 7 which is the driving-out portion 6 of the driving machine, the stopper head 2a is positioned in the recess 15 of the guide 7 and the stopper shaft 2b is moved as shown in FIG. Vertical groove 17 by magnet 13
It is adsorbed to the inner surface of and is held in the same direction as the driving direction of the stopper 2.

When the stopper 2 is started to be driven, the stopper tip 2c is pressed against the mating member 5, and the stopper head 2a pushes the driver 8 to
The driving process is started by pressing a main body (not shown). Then, near the end of when the stopper 2 is completely driven into the mating member, the guide 7 contacts the mating member 5 and moves upward as shown in FIG. After sliding on the surface 14, as shown in FIG. 2, it passes over the intersection of the vertical groove 17 and the inner wall 18 of the guide 7 to finish the driving.

Next, a modified embodiment of the present invention will be described.

In the above-described embodiment, the magnet 13 provided below the guide 7 has a structure in which it is exposed inside at the position of the vertical groove 17.
A structure having a thin wall 19 between the magnet 13 and the vertical groove 17 as shown in FIG. 5 and FIG. 6 is also included in the present invention because the same action and effect can be obtained. In the case of this modified embodiment, the attraction force for attracting the stopper is reduced, but the damage and wear of the magnet 13 can be further prevented.

[Effect of device]

According to the present invention, by providing a vertical groove extending in the axial direction of the guide on the inner wall of the cylindrical guide that guides the driving of the stopper, the stopper head can contact the magnet at the time of driving. The magnet will not be damaged or the adhesive will not come off. Also,
By providing a vertical groove in the same direction as the direction in which the fastener is ejected, the stopper can be attracted and fixed well, so that the main body is stable and the operability is improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an essential part showing an embodiment of a fastener holding device for a driving tool according to the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 and FIG. FIG. 5 is a vertical sectional side view of an essential part showing an operating state of the holding device of the present invention, FIG. 5 is a vertical sectional side view of an essential part showing a modified embodiment of the present invention, and FIG. 6 is a sectional view taken along line BB of FIG. FIG. 7 is a perspective view showing an example of use of a driving machine according to the prior art, FIG. 8 is a side view of a longitudinal section of the driving machine shown in FIG. 7, and FIG. It is a principal part vertical side view which shows an example. In the figure, 1 is a driving tool main body, 2 is a stopper, 2a is a stopper head, 2b is a stopper shaft portion, 6 is a driving portion, 7 is a guide, 8 is a driver, 9 is a piston, 10 is a cylinder. , 13 is a magnet, 16 is a sleeve, 17 is a vertical groove, and 18 is an inner wall.

Claims (1)

[Scope of utility model registration request] 1. A driving machine having a driver for striking a headed stopper to drive the stopper into a mating member, and a tubular guide serving as a driving guide for the stopper, in the vicinity of a lower end of the guide. A magnet embedded in the inner wall so as to attract the stopper shaft portion, a guide provided above the magnet, a recess provided so as to hold the stopper head in a non-contact manner, and a guide between the recess and the magnet. The taper surface provided on the inner wall and the vertical groove formed to extend in the axial direction of the guide are formed on the inner wall of the guide below the taper surface with which the stopper shaft portion comes into contact by the attraction of the magnet. Is set to be smaller than the width of the fastener head so that the fastener head does not come into direct contact with the magnet.