JPH0118302Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is an insert buried in the slab of a concrete building, especially an insert drive for fixing an insert equipped with fixing members such as nails to a formwork. Regarding fittings.

(Prior art) Conventionally, when fixing an insert to a formwork,
Fix the insert in contact with the formwork by driving a nail into the formwork while supporting it by hand, or by directly hitting the head of the insert supported by hand with a hammer etc. Nails were driven into the formwork to secure it in place. however,
As shown in Fig. 19, on the formwork for fixing the insert, a large number of reinforcement reinforcing bars 44 are arranged in advance in the vertical and horizontal directions, so these reinforcing bars 44 act as a hindrance to fixing the insert 40. It was difficult to do that task. In particular, when fixing the insert 40 to the formwork 43 at the back of the beam 45, etc.,
Because of the formwork 46 on both sides and the reinforcement reinforcing bars 44 arranged three-dimensionally, it was often difficult for workers to drive nails into the formwork 43 with a hammer or the like. In such cases, fixing the insert requires time and effort and is inefficient.

(Purpose) The present invention was developed in view of the above circumstances, and its purpose is to provide an insert driving tool that allows workers to easily and efficiently fix inserts to formwork. be. In particular, the present invention provides an insert driving tool that is effective for fixing an insert to a formwork in a deep part of a beam or the like.

(Structure) The insert driving tool according to the present invention is an insert driving tool for fixing an insert having a plurality of nails to a formwork, which has a holding part for temporarily holding the insert and has a lower surface. a driving tool main body constituted by a base that comes into contact with the outer periphery of the plurality of nails or inserts; and a handle that is integrally formed with the base and has a length sufficiently longer than the insert; and a sliding driving body that is slidably inserted into the handle and comes into contact with the base or the upper surface of the insert.First, the insert is temporarily held in the holding part of the driving tool body. A fixing member, such as a nail, fixes the insert by bringing the temporarily held insert into contact with the formwork, and then sliding a sliding driving body that is slidably inserted into the main body. The insert is driven into the formwork, and the insert is fixed to the formwork by this driving.

That is, the present invention provides a holding part on the driving tool body for temporarily holding the insert and bringing it to a predetermined position in the formwork where the insert is to be fixed, and a holding part that is slidably attached to the driving tool main body. Insert driving is a method for fixing an insert to a formwork by driving a fixing member such as a nail or the head of the insert into the formwork with a sliding driving body that is inserted into the formwork. It provides fittings.

The present invention will be described below with reference to embodiments shown in the drawings.

First, FIGS. 1 to 4 show an insert driving tool for fixing an insert 40 to a formwork 43, in which a flange 41 for inserting a fixing member such as a nail 42 is formed. Therefore, the insert driving tool in this case is such that the lower surface 16 of the base 12 portion of the driving tool main body 1 serves as the driving surface for the fixing member, and the nail 42, which is the fixing member, is driven into it. be. Further, FIGS. 5 to 7 show an insert driving tool for fixing the insert 40, in which a nail 42 serving as a fixing member is built inside the insert 40, to a formwork 43. In this case, the insert driving tool is attached to the base 1 of the driving tool main body 1.
The inner bottom surface 17 formed on the insert 4 serves as a striking surface against which the head of the insert 40 is struck.
The insert 40 is fixed to the formwork 43 by driving nails 42 built into the formwork 43 into the formwork 43. Further, FIG. 8 shows an insert 4 for fixing the insert 40, in which a nail 42 serving as a fixing member is built inside the insert 40, to a formwork 43.
This is a zero-driving tool, and has a structure in which the sliding driving body 3 directly hits the head of the insert 40. That is, the lower end surface 31 of the sliding driving body 3 serves as a driving surface against which the head of the insert 40 is hit, and the nail 42 built inside the insert 40 is driven into the formwork 43, thereby fixing the insert 40 to the formwork 43. This is how it has become. In all of the above insert driving tools, a fixing member such as a nail 42 is driven into the formwork 43 by vertical movement of the sliding driving body 3, and the insert 40 is fixed to the formwork 43 by this driving. It is something.

FIG. 1 shows a perspective view of the insert driving tool shown in FIG. 2. FIG. A driving tool main body 1 of the insert driving tool shown in FIGS. 1 to 7 has a handle 11 formed in a cylindrical or cylindrical shape and a diameter larger than the outer diameter of the handle 11. It consists of a base 12 portion formed at the lower end of the base. A recess 13 into which the head of the insert 40 fits is formed in the center of the base 12 . The inner diameter of this recess 13 is formed to approximately match the outer diameter of the head of the insert 40, and in the case of the insert driving tool shown in FIGS. It is large enough to fit all of 40. The head of the insert 40 fitted into the recess 13 is temporarily held by a holding part 2 formed on the base 12 of the driving tool main body 1. 8th
A driving tool main body 1 of the insert driving tool shown in the figure is formed into a cylindrical shape as a whole, and has an inner diameter that substantially matches the outer diameter of the head of the insert 40. The head of the insert 40 is fitted into the cylinder of the driving tool main body 1,
It is designed to be temporarily held by a holding part 2 formed on the driving tool main body 1.

The holding part 2 has a structure that temporarily holds the insert 40 in order to bring the insert 40 to a predetermined position in the formwork 43 where the insert 40 is to be fixed.After the insert 40 is driven into the formwork 43 and fixed, It is desirable that the insert 40 be easily removed from the driving tool main body 1 of the insert driving tool. 9 to 12 show embodiments of the holding portion 2 of the insert driving tool.

The holding part 2 shown in FIG.
A through hole 18 bored inside, a ball 21 housed in the through hole 18, a spring 22 for applying a predetermined biasing force to the ball 21, and a stopper for locking the spring 22 and the ball 21. It consists of bolt 23. Further, the inner end 19 of each through hole 18 is treated to prevent the ball 21 from slipping out inward. The head of the insert 40 fitted into the recess 13 of the base 12 comes into contact with a part of the ball 21 of the holding part 2 and is temporarily held resiliently on the base 12. ing.

FIG. 10 shows another example of the holding portion 2 of the insert driving tool. This holding part 2 includes an annular recess 20 formed in the recess 13 of the base 12, and an elastic ring 2 having a substantially C-shaped planar shape housed within the annular recess 20.
4 (see Figure 12). In the case of this holding part 2, the inner peripheral surface of the elastic ring 24 contacts the head of the insert 40 fitted in the recess 13 of the base 12, so that the insert 40 is elastically attached to the base 12. They are now being held temporarily.

Furthermore, FIG. 11 shows another example of the holding portion 2 of the insert driving tool. This holding part 2 is
an annular recess 20 formed in the recess 13 of the base 12;
It consists of a permanent magnet 25 housed within this annular recess 20. This holding part 2 is adopted because
Insert 40 made entirely of metal
or, as shown by the dotted line in FIG. 11, an insert 40 containing a metal nut 44 for holding a hanging bolt is temporarily held. When the insert 40 is entirely made of metal or a metal nut 44 is housed inside the insert 40, the head of the insert 40 is attracted to the permanent magnet 25. The insert 40 is temporarily held on the base 12 by this suction.

In the case of an insert driving tool as shown in FIG. 8, the holding part 2 is one in which a notch 47 is provided at the lower end of the driving tool main body 1, as shown in FIGS. 21 and 22; As shown in FIGS. 22, 23 and 24, a tongue piece 48 is provided in the lower part of the driving tool body 1 in a shape of a letter and bent inward of the driving tool main body 1, or As shown in FIGS. 25 to 28, a bridge 49 is formed by cutting both sides of the lower part of the driving tool main body 1 so that the center protrudes inward.
Insert 40
It is possible to have a structure in which the driving tool main body 1 temporarily holds the driving tool.

Next, the sliding driving body 3 will be explained. The sliding driving body 3 is slidably fitted into the driving tool main body 1 of the insert driving tool.

The sliding driving body 3 of the insert driving tool shown in FIGS. 1, 2, and 5 has a handle 11 of the driving tool main body 1.
It is fitted on the outside of the handle 11 and can be slidably moved between the upper end of the handle 11 provided with the retainer 14 and the upper surface 15 of the base 12.
Therefore, the sliding driving body 3 is held in place by the handle 11 to prevent it from coming off.
4, and when released, the sliding driving body 3 will fall naturally, and the lower end surface 31 of the sliding driving body 3 will hit the upper surface 15 of the base 12 of the driving tool main body 1. There is.

The sliding driving body 3 of the insert driving tool shown in FIGS. 3 and 6 is slidably inserted along the outer surface of the handle 11 of the driving tool main body 1. A weight 32 for increasing the striking force of the body 3,
Grip part 33 for lifting the sliding driving body 3 by hand
It has The lower end surface 31 of the sliding driving body 3 is adapted to come into contact with and strike the upper surface 15 of the base 12 of the driving tool main body 1.

The sliding driving body 3 of the insert driving tool shown in FIGS. 4, 7, and 8 is formed in a cylindrical shape, contrary to the sliding driving body 3 shown in FIGS. 3 and 6. It is slidably fitted along the inner surface of the handle 11 of the driving tool main body 1. A weight 3 is attached to the bottom of this sliding driving body 3.
2, and a grip part 33 for lifting the sliding driving body 3 by hand is provided on the upper part. Fourth
In the case of the insert driving tool shown in Figures and Figure 7,
The lower end surface 31 of the sliding driving tool 3 comes into contact with the upper surface 15 of the base 12 of the driving tool main body 1 and is driven into the driving tool, and in the case of the insert driving tool shown in FIG. The lower end surface 31 of the dynamic driving body 3 directly contacts the head of the insert 40 held by the holding part 2,
I'm starting to hit this. The sliding driving body 3 of the insert driving tool shown in FIGS. 4, 7, and 8 has a protected structure inside the handle 11, so when fixing the insert to the formwork,
The sliding driving body 3 can be slid without being hindered by nearby reinforcing bars or the like.

In addition, the handle 11 of the driving tool body 1 of the insert driving tool
The position of the retainer 14 or the grip part 33 of the sliding driving body 3 is at a height that allows the operator to grasp the grip part 33 and the retainer 14 by hand while standing naturally. is desirable. This is because if the height is such that it can be held by hand, it will be easier to drop the sliding driving body 3 or move it up and down. Further, in order to do this, the handle 11 of the driving tool main body 1 and the sliding driving body 3 may be constructed to be expandable and retractable so that they can be changed to any desired length.

Next, a case will be described below in which the insert 40 is fixed to the formwork 43 using the insert driving tool according to the present invention configured as described above.

When using the insert driving tool shown in FIGS. 1 to 4, first insert the insert 40 into the recess 13 of the driving tool body 1 of the insert driving tool.
, and insert the insert 40 into the driving tool body 1.
Temporarily held by the holding section 2. At this time, a nail 42, which is a fixing member, is inserted in advance into a nail hole provided in a flange 41 of the insert 40. Then,
With the insert 40 temporarily held in the holding part 2 of the driving tool main body 1, hold the insert driving tool at a predetermined position of the formwork 43 that fixes the insert 40, and insert the temporarily held insert 40 into the formwork. 43. At this time, the nail 42 inserted into the nail hole provided in the flange 41 is lifted toward the lower surface 16 of the base 12 of the driving tool main body 1. In this state, in the case of the insert driving tool shown in FIGS. 1 and 2, the sliding driving body 3 fitted into the handle 11 of the driving tool main body 1 is lifted upward and the handle 11 is removed.
Hold it up to the retainer 14, then release your hand and let the sliding driving body 3 fall naturally. or,
This sliding driving body 3 is forcibly moved up and down. In addition, in the case of the insert driving tool shown in FIGS. 3 and 4, the grip portion 33 of the sliding driving body 3 is used to hold this by hand to move the sliding driving body 3 up and down. As a result, the lower end surface 31 of the sliding driving tool body 1
The head of the insert 40 comes off from the holding part 2 and enters the recess 13 of the base 12 due to the impact.
The head of the nail 42 is hammered into the lower surface 16 of the base 12, the nail 42 is driven into the formwork 43, and the insert 40 is fixed at a predetermined position in the formwork 43, as shown in FIG. When using the insert driving tool shown in FIGS. 5 to 7, first insert the recess 1 in the base 12 of the driving tool main body 1 of the insert driving tool.
The head of the insert 40 is fitted into the insert 3 to temporarily hold the insert 40 in the holding part 2 of the driving tool main body 1.

At this time, the head of the insert 40 is in contact with the inner bottom surface 17 of the recess 13 of the base 12. Next, with the insert 40 temporarily held in the holding part 2 of the driving tool main body 1, the insert driving tool is held at a predetermined position of the formwork 43 that fixes the insert 40, and the temporarily held insert 40 is held. It is brought into contact with the formwork 43. In this state, in the case of the insert driving tool shown in FIG. 5, lift the sliding driving body 3 fitted into the handle 11 of the insert driving tool upwards, hold it up to the retainer 14 of the handle 11, and then hold it as it is. Release your hand and let the sliding driving body 3 fall naturally. Alternatively, the sliding driving body 3 is forcibly moved up and down. In the case of the insert driving tool shown in FIGS. 6 and 7, the grip portion 33 of the sliding driving body 3 is used to hold it by hand to move the sliding driving body 3 up and down. As a result, the sliding driving body 3 is attached to the base 1 of the driving tool main body 1.
2 collides with the top surface 15 of the base 1, and the impact causes the base 1
The insert 4 contacts the inner bottom surface 17 of the recess 13 of No. 2.
The head of No. 0 is nailed, and the nail 42 built into the insert 40 is driven into the formwork 43.
As shown, the insert 40 is fixed in place in the formwork 43.

When using the insert driving tool shown in FIG. Part 2 temporarily holds it. Next, the insert driving tool is brought to a predetermined position in the formwork 43, and after alignment, the insert driving tool is set vertically. Thereafter, a predetermined amount of the sliding driving body 3 is extracted upward from the driving tool main body 1 using the gripping part 33, and then the gripping part 33 of the sliding driving body 3
The sliding driving body 3 is forcibly moved up and down or allowed to fall naturally by holding it in the hand. As a result, the head of the insert 40 is directly hit with the lower end surface 31 of the sliding driving body 3, and thereby the nail 42 built in the insert 40 is driven into the formwork 43, as shown in FIG. The insert 40 is fixed in place in the formwork 43.

After the insert 40 has been fixed in the manner described above, by pulling out the driving tool main body 1 of the insert driving tool upward, the insert driving tool will be removed from the insert 40, as shown in Fig. 19. The insert 40 is secured.

In the case of the insert driving tools shown in FIGS. 1, 2, and 5, the handle 11 of the driving tool main body 1 is provided with the following inserts as shown in FIGS. 16 and 17.
By forming a plurality of screw holes 26 in the vertical direction of the handle 11 and providing a stopper 27 that can be attached to the handle 11 by screwing a fixing bolt 28 into the screw holes 26, the movement range of the sliding driving body 3 and Sliding driving body 3
The driving force can be changed. For this example,
If the sliding driving body 3 is hit against the stopper 27,
The impact is transmitted to the driving tool main body 1, and in the case of the insert driving tool shown in FIGS. 1 and 2,
The head of the nail 42 is hammered into the lower surface 16 of the base 12, the nail 42 is driven into the formwork 43, and the insert 40 is fixed at a predetermined position in the formwork 43, as shown in FIG. In addition, in the case of the insert driving tool shown in FIG. 5, the head of the insert 40 that contacts the inner bottom surface 17 of the recess 13 of the base 12 is driven, and the nail 42 built in the insert 40 is driven into the formwork. 43, and the insert 40 is fixed in place in the formwork 43, as shown in FIG. This stopper 27 is used when the reinforcing reinforcing bar 44 obstructs the movement range of the sliding driving body 3.
Alternatively, it may be used when the insert 40 is fixed to the formwork 43 under the reinforcement reinforcing bars 44 arranged three-dimensionally. That is, the stopper 27
If it is attached in advance to an appropriate position on the handle 11, the sliding driving body 3 will not fall from the stopper 27 and will not be disturbed by the reinforcing reinforcing bars 44. In addition, when sliding the sliding driving body 3 by hand, it is convenient because the movement range of the sliding driving body 3 can be arbitrarily changed and the sliding driving body 3 can be adjusted so that it can be slid in a posture that makes it easier for the operator to work. It is.

In addition, if the insert 40 is fixed at a location below the reinforcing reinforcing bar 44, the first
It is recommended to use an insert driving tool as shown in Figure 8. That is, this insert driving tool has a recess 13 in the base 12 of the driving tool main body 1 having the holding part 2 for holding the insert 40 and the sliding driving body 3.
The sliding handle 11 of the driving tool body 1 is not aligned with the handle 11 of the driving tool body 1, but is formed to be offset from each other. Therefore, as shown in FIG.
The recessed part 13 holding 0 can be located under the reinforcing reinforcing bars 44, and the handle 11 can slide the sliding driving body 3 without being obstructed by the reinforcing bars 44 on the base 12. With this structure, when the sliding driving body 3 is slid, it hits the upper surface 15 of the base 12, and the nails 42 that come into contact with the lower surface 16 of the base 12 are driven into the formwork 43, and the nails 42 are driven under the reinforcing reinforcing bars 44. Insert 40 can be fixed. Note that the insert driving tool shown in FIG. 18 is drawn with respect to the insert driving tool shown in FIGS. 1 and 2, but
It goes without saying that the structure is not limited to this, and the insert driving tools shown in FIGS. 3 to 7 can also have a similar structure.

Note that there are cases where the sliding driving body 3 cannot be used for any of the above-mentioned insert driving tools due to poor working environment. In such a case, handle 1
It can also be used by directly hitting the top of 1 with a hammer or the like.

(Effects) According to the insert driving tool of the present invention, the insert is temporarily held at one end of the driving tool body and is brought into contact with the formwork, and the insert can be driven by simply dropping or moving the sliding driving tool up and down. The insert can be fixed to the formwork easily and efficiently. In other words, the bottom surface of the base is attached to the outer periphery of multiple nails or inserts (specifically, the flange 4
1), the insert can be driven in entirely. Therefore, by positioning the upper end of the handle constituting the driving tool body and dropping the sliding driving tool, the insert can be driven into the formwork without being inclined.

In addition, by inserting the driving tool body between the reinforcing reinforcing bars, the insert can be easily brought into contact with the formwork, and is especially useful for fixing the insert to the formwork in deep areas such as beams. It's convenient.

According to the present invention, the vertical movement of the sliding driving body fitted into the driving tool body does not require a space for swinging the hammer unlike the conventional case of driving a nail with a hammer and fixing the insert. The insert can be fixed simply by That is, it is not necessary to take up space for fixing the insert. Additionally, in the past, workers had to bend down to drive nails with a hammer, but with the present invention,
Work is easier because the worker can work while standing.

Furthermore, since the insert driving tool according to the present invention has a simple structure consisting of a driving tool main body and a sliding driving body, it is easy to handle and does not cause problems such as failure during use. Further, as shown in the embodiment, it is possible to fix the insert under the reinforcing steel bar simply by changing the arrangement structure of the base and handle, which has a structural advantage. Furthermore, the parts of the handle, etc., which are not directly impacted by the sliding driving body, can be made lightweight by molding them with synthetic resin, making the insert driving tool easier to carry, which is highly practical.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the insert driving tool according to the present invention, FIGS. 2 to 8 are sectional views showing embodiments of the insert driving tool according to the present invention, and FIGS. Figures 11 to 11 are cross-sectional views showing examples of the holding part, Figure 12 is a plan view of the elastic ring of the holding part shown in Figure 10, and Figures 13 to 15 are views of the insert fixed to the formwork. 16 and 17 are a perspective view and a sectional view of a handle provided with a stopper, FIG. 18 is a sectional view of another embodiment of the insert driving tool according to the present invention, and FIG. 19 is a slab. A perspective view for explaining the state of fixation of the insert used in the mold to the formwork, No. 20
21, 22 to 24, and 25 to 28 show respective embodiments of the holding section, FIG. 20 is a perspective view of the holding section, and FIG. 21 is a perspective view of the holding section. Fig. 22 is a front view of a state in which the insert is temporarily held; Fig. 22 is a front view of another example of the holding part;
3 is a cross-sectional view taken along the line A-A in FIG. 22, FIG. 24 is a cross-sectional view of the insert temporarily held, FIG. 25 is a front view of another holding part, and FIG. 26 is a cross-sectional view taken along the line B-B in FIG.
The sectional view, Fig. 27 is the sectional view taken along the line C-C in Fig. 25, and the second
FIG. 8 is a sectional view of the insert temporarily held. In the figure, 1 is a driving tool main body, 2 is a holding part, 3 is a sliding driving body, and 40 is an insert.

Claims (1)

[Claims for Utility Model Registration] An insert driving tool for fixing an insert having a plurality of nails to a formwork, the tool having a holding part for temporarily holding the insert, and a lower surface of which the plurality of nails are inserted. or a driving tool main body composed of a base that abuts the outer periphery of the insert, and a handle formed integrally with the base and having a length sufficiently longer than the insert, and a driving tool body that is slidable on the handle; An insert driving tool comprising: a sliding driving body that is fitted into the base and comes into contact with the upper surface of the base or the insert.