JPS6334849Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application of the Invention) This invention relates to a fastener holding device in a vibratory impact tool.

(Prior Art) Generally, it is known that a vibration impact tool equipped with a vibration impact mechanism is provided with a fastener holding portion such as a nail or a pin at the tip thereof. For example, as shown in FIG. 8, a driving driver 35 linked to a vibration striking mechanism
A pair of fastener holding members 37, 37 are provided on both sides of the nose portion 36 that accommodates the The shaft portion 7 of the fastener 7 is attached to the fastener holding claws 40, 40 formed on the surface.
A vibrating impact tool that holds a is being implemented.
However, in this vibration impact tool, the driving driver 35 vibrates and impacts the fastener head 7a, and finally the fastener head 7a is moved to the fastener holding claw 4.
0,40, the holding member 37 is opened outward against the force of the spring 39 due to the impact generated when the fastener head 7a is vibrated and struck by the driver 35. , there is a risk that the holding claws 40, 40 may be damaged upon impact. Also, when the fastener 7 is loaded and held in the holding members 37, 37, the holding members 37, 37 are held by the spring 3.
The work is troublesome because it has to open against the force of 9,39.

(Technical Problems of the Invention) The object of this invention is to solve the above-mentioned drawbacks and to propose a fastener holding device for a vibratory impact tool that allows easy loading of fasteners and does not damage the fastener holding member.

(Means for Solving the Problems) As a means for solving the above problems, a fastener holding device for a vibrating impact tool according to this invention is provided with a fastener holding device for a driving driver driven by a vibration impacting mechanism, A flexible cylindrical member is attached to the distal end of the main body of a vibrating impact tool, which has a sleeve that is provided along the side and accommodates and holds the fastener head inside the sleeve, and a flexible cylindrical member is attached to the side of the cylindrical member for inserting the fastener. A pair of claw members are supported in an openable and closable manner at the lower end of the cylindrical member, and a tapered surface with a downward recess facing the lower end of the sleeve is formed at the upper part of the opposing surface of the claw member. Further, a housing groove for the fastener shaft and a magnet that attracts the shaft are provided at the bottom thereof, and when the sleeve slides on the tapered surface, the claw member expands outward against the attraction force of the magnet. It is characterized by causing

(Functions and effects of the invention) Since this invention is structured as described above,
When loading a fastener into a vibrating tool, insert it through the slit on the side of the cylindrical member, open the opposite surface of the claw member, and store the shaft of the fastener in the housing groove, and store the head in the sleeve. All you have to do is let it go and hold it. In this case, since the cylindrical member supporting the claw member is flexible, it is easy to expand the opposing surfaces of the claw member, and at this time, the fastener is attracted to the magnet provided on the claw member. For,
Reliably held in place. Therefore, the fastener can be easily loaded.

In addition, when the nail member vibrates and drives the driving driver, the nail member hits the material surface as the fastener is driven into the material, but as the fastener further enters the material, the lower end of the sleeve touches the tapered surface of the nail member. move along. At this time, since the tapered surface is pressed outward, the claw member swings outward against the attraction force of the magnet and opens. Therefore, since the driving driver does not come into direct contact with the pawl member, the durability of the pawl member is significantly improved compared to the prior art.

(Example) Hereinafter, an example of a fastener holding device for a vibratory impact tool according to the present invention will be described with reference to the drawings.

In the figure, the symbol A indicates a vibratory impact tool. This vibration impact tool A has a main body 1 having a known vibration impact mechanism (not shown), and is connected to the vibration impact mechanism and installed in the tip nose 2 of the main body 1 so as to be able to vibrate in the axial direction. A grip 5 has a compressed air inlet 4 connected to an air source (not shown) at one end. The driving mechanism is actuated to drive the driving driver 3, and the fastener 7, such as a nail or pin, supplied in front of the driving driver 3 is driven into the material while vibrating.

A cylindrical sleeve 8 is provided inside the nose portion 2 of the vibration impact tool A along the outer periphery of the driving driver 3.
is provided to be slidable in the axial direction, and the sleeve 8 is biased forward by a spring 9.

Next, a slide collar 1 is placed on the outside of the nose part 2.
0 is provided so as to be slidable in the axial direction. The slide collar 10 is biased forward by a spring 9a, and has an engaging protrusion 11 formed on its outer surface. A flexible cylindrical member 12 is attached to the engaging protrusion 11 of the slide collar 10.

This cylindrical member 12 is usually made of an elastic material such as rubber, and has slits 13 for inserting fasteners formed on both sides thereof, and engagement grooves 14 formed at both ends thereof. The cylindrical member 12 is attached to the tip of the main body 1 by engaging the engagement groove 14 at one end in the figure with the engagement protrusion 11 of the slide collar 10. Note that the cylindrical member may be of any type as long as it has flexibility, and may be of a bellows type, for example.

The cylindrical member 12 has a pair of claw members 1 at its lower end.
5 and 15 are supported so that they can be opened and closed. Each claw member 1
Reference numeral 5 is made of a non-magnetic material, has an engaging protrusion 16 on the outer upper part, a rotatable roller 31 on the outer lower end, and a tapered surface 1 on the inner upper part.
7 is provided, and the shaft portion 7 of the fastener is provided at the bottom thereof.
A housing groove 18 is formed, and a magnet 19 is attached to the inner surface of the housing groove 18. Claw members 15, 15
are supported so as to be openable and closable opposite the lower end of the cylindrical member 12 by engaging the engaging protrusions 16 on the upper outer sides of the cylindrical members with the engaging grooves 14 on the lower end of the cylindrical member 12, respectively. Tapered surfaces 17, 17 with downward depressions are formed at the upper portions of the opposing surfaces of the pair of claw members 15, 15 supported oppositely, and the housing groove 18 of the shaft portion 7 of the fastener and the magnet are formed below the tapered surfaces 17, 17. 1
9 is formed. The tapered surface 17 is provided so as to face the lower end of the sleeve 8 along the outer periphery of the driving driver 3. In normal cases, the claw member 1
It is preferable that the rollers 31 at the tips of the sleeves 5 and 15 be provided outside the point where the lower end of the sleeve 8 contacts the tapered surface 17. Further, when the pair of claw members 15, 15 are closed, the axial center of the sleeve 8 is set to pass through the center of the housing grooves 18, 18 of the claw members 15, 15. Note that the roller 31 does not necessarily need to be provided. Furthermore, if the fastener accommodating groove 18 is formed in a V-shape, it can accommodate fasteners of various sizes.

Next, how the vibration impact tool A having the above configuration is used will be explained.

First, the fastener 7 is loaded into the vibrating impact tool A. In this case, the slit 1 on the side of the cylindrical member 12
3, insert the head 7a of the fastener 7, expand the claw members 15 against the magnetic attraction force of the magnet 19, and insert the head 7a of the fastener 7 from there.
is inserted into the housing groove 18, and then the head 7a is inserted into the sleeve 8. In this way, the fastener 7 has its head 7a attached to the cylindrical member 1.
It can be easily loaded by inserting the shaft portion 7b from between the claw members 15, 15 from the side of 2. The head 7a of the fastener 7 is inserted into the sleeve 8, and the shaft portion 7b is accommodated in the receiving groove 18 of the claw members 15, 15, so that the fastener 7 is held in a correct posture.

Next, when the tip of the fastener 7 is directed toward the material and the trigger 6 is pulled to drive the vibration impact tool A, the fastener 7 is driven into the material 20 little by little by the vibration of the driving driver 3, as shown in FIG. As shown in FIG. 2, the tips of the claw members 15, 15 come into contact with the surface of the material 20. As the driving continues, the sleeve 8 comes down, so that its tip touches the tapered surface 17 of the claw members 15, 15, and then slides downward on the tapered surface 17, as shown in FIG. Claw member 1
The rollers 31 and 31 at the tips of 5 and 15 are sleeves 8
Since the claw members 15, 15 are formed outside the first contact point between the sleeve 8 and the tapered surface 17, when the sleeve 8 slides on the tapered surface 17, the claw members 15, 15 are reliably pushed outward and expanded. It is separated from the shaft portion 7b of the fastener 7. At this time, the fastener 7 has already been applied to the material 2.
There is no need to maintain that position since it is driven deep into the zero. As the fastener 7 is driven in further, the sleeve 8 itself finally comes into contact with the surface of the material 20 as shown in FIG. 6, and slides upward within the nose portion 2 against the force of the spring 9. At the same time, the claw member 15,
15 is also pushed out to the outside of the nose portion 2 and pushed into the main body 1 side, so the flexible cylindrical member 12 is compressed and the slide collar 1
0 upwards. As a result, the slide collar 10 slides upward against the force of the spring 9a. Therefore, the compressive force on the cylindrical member 12 is relaxed. At the end of driving the Fastner 7,
As shown in FIG. 7, the tip of the nose portion 2 is in contact with the surface of the material 20, and the tips of the claw members 15, 15, the tip of the sleeve 8, and the tip of the nose portion 2 are on the same surface (material 20).
0 surface).

When the driving is completed, the vibration impact tool A is removed from the material 20.
Speaking from above, sleeve 8 and slide collar 10
is slid downward by the force of the spring 9a, and the cylindrical member 1
2 extends downward due to elasticity, and the claw members 15, 1
5 closes again. The next fastener 7 may be driven by the same procedure as described above.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the vibration impact tool according to the invention, FIG. 2 is a side view of the vicinity of the nose of the vibration impact tool, and FIG. 3 is a front view thereof.
FIGS. 4, 5, 6, and 7 are explanatory diagrams showing the state in which the pawl member opens in response to driving of the fastener, and FIG. 8 is a fastener holding device in a conventional vibrating impact tool. FIG. Code A... Vibration impact tool, 1... Body main body,
2...Nose part, 3...Driver, 7...
Fastener, 8... Sleeve, 12... Cylindrical member, 13... Slit, 15... Claw member, 17...
... Tapered surface, 18 ... Accommodation groove, 19 ... Magnet, 2
0...Material.

Claims (1)

[Scope of utility model registration request] A vibrating impact tool has a driving driver driven by a vibration impact mechanism, and a sleeve provided along the outer periphery of the driving driver and housing and holding a fastener head inside the driving driver. A cylindrical member is attached, and a slit for inserting a fastener is formed on the side of the cylindrical member, and a pair of claw members is supported at the lower end of the cylindrical member so as to be openable and closable. A tapered surface with a downward recess facing the lower end of the sleeve is formed on the upper part of the surface, and a groove for accommodating a fastener shaft and a magnet that attracts the shaft are provided on the lower part thereof, so that the sleeve slides on the tapered surface. A fastener holding device for a vibratory impact tool, characterized in that a claw member is expanded outwardly against the attraction force of a magnet.