JPH0739539Y2 - Indentation caulking hand tools such as steel balls or cylindrical plugs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention is for the purpose of press-fitting a steel ball or a cylindrical plug into the hole when the steel ball or the cylindrical plug is used to close the hole and then retaining it. The present invention relates to a press-fit caulking hand tool such as a steel ball or a cylindrical plug used to prevent caulking.

2. Description of the Related Art Conventionally, when a hole is closed by using a steel ball, a cylindrical plug, or the like, after the steel ball, the cylindrical plug, or the like is press-fitted into the hole, caulking is used as a retainer. In order to carry out the work, separate hand tools were used for the press-fitting tool, the caulking tool and the like. Further, a press-fit caulking hand tool, which is an integrated combination of these press-fitting tools and caulking tools, has also been used.

Among these conventional hand tools, the case where each work is performed by using a separate press-fitting tool and caulking tool will be described with reference to FIG. In this case, since the steel ball 2 is press-fitted into the press-fitting recessed portion 1a of the hole 1, the press-fitting tool 3'having the chisel-shaped press-fitting portion 3a that abuts on the steel ball 2 and the press-fitting tool into which the steel ball 2 is press-fitted. Recess 1a
With respect to the counterbore surface 1b of the outer peripheral end surface, a caulking tool 4'for caulking is used by driving a wedge-shaped ratchet caulking portion 4a at two points facing each other by sandwiching the steel ball 2. First, hold the press-fitting tool 3'in hand, and as shown in FIG. 3 (a),
As shown in FIG. 3 (b), when the press-fitting tool 3'abutted on the steel ball 2 receives a load such as hammering,
The steel ball 2 is press-fitted into the press-fitting recess 1a. Next, the press-fitting tool 3'is replaced by the caulking tool 4 ', and when the caulking tool 4'applied to the counterbore surface 1b receives a load by hammering like the press-fitting tool 3', wedge-shaped chisel. The counterbore surface 1b is deformed by the caulking portion 4a ', and the deformed caulking raised portion 1c prevents the steel ball 2 from being caulked as shown in FIG. 3 (c).

Next, a case where a conventional press-fitting / crimping hand tool in which a press-fitting tool and a crimping tool are integrated is used to perform work will be described with reference to FIG. In this case, the integrated press-fitting includes a press-fitting portion 3 ″ a for press-fitting the steel ball 2 into the press-fitting recess 1a and a wedge-shaped ratchet caulking portion 4 ″ a for caulking the steel ball 2 by the caulking ridge 1c.・ Holding the caulking tool 5'in hand, the press-fitting portion 3 "a is brought into contact with the steel ball 2 as shown in FIG. 4 (a). After that, as shown in FIG. 4 (b), with a hammer or the like. The steel ball 2 is press-fitted into the press-fitting recessed portion 1a by applying a load such as driving in. With this press-fitting, the caulking portion 4 ″ a further applies a load to deform the counterbore surface 1b, and thereby the caulking raised portion. 1c was formed, and the steel ball 2 was caulked by the caulked ridge 1c as shown in FIG. 4 (c).

In addition, 1d in the figure is a trace in which the caulking portions 4'a and 4 "a are driven in order to form the caulking raised portion 1c.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, as described above, the work of press-fitting and crimping the steel ball 2 using the hand tool of the press-fitting tool 3'and the crimping tool 4'is performed by the press-fitting tool 3'and the crimping tool 4 '. Therefore, the workability is poor and skill is required for the work. Further, the press-fitting portion 3 ″ a and the crimping portion 4 ″ are provided so that the press-fitting and the crimping of the steel ball 2 can be performed together.
In the press-fitting / caulking tool 5'in which a and a are integrated, it is not necessary to change each hand tool for the work of press-fitting and caulking, which is an advantage in that respect, but it is an integrated structure. Therefore, the caulking will be started even while the steel ball 2 is being press-fitted, and the caulking will be completed before the press-fitting is reliably performed, and there is a risk that the hole will not be closed due to insufficient press-fitting. It was inconvenient.

Therefore, the present invention improves the workability by integrating the press-fitting tool and the caulking tool and also improves the problem that the press-fitting tends to be insufficient due to the integration. An object of the present invention is to provide a hand tool for press-fitting and caulking in which a steel ball or a cylindrical plug is not caulked only after the cylindrical plug is surely press-fitted.

Means for Solving Problems The present invention solves the above-mentioned problems, and a steel ball or a cylindrical plug is used to close the hole, and the steel ball or the cylindrical plug is press-fitted into the hole and caulked to prevent a hand tool. In, the tool body is provided with a caulking portion at one end and a load is applied from the other end side, and the press-fitting portion is formed at the tip end so that the press-fitting portion can project and retract from the center of the caulking portion and is slidable on the tool body. The built-in press-fitting tool and the rear end side of the press-fitting tool are accommodated in the tool body, and when the load is applied from the other end of the tool body, the press-fitting tool is brought into contact with the rear end of the press-fitting tool to transfer the load to the press-fitting tool. A switching member provided so as to be switchable between a first position for allowing the press-fitting portion and a second position for allowing the press-fitting portion to be retracted from the caulking portion,
And a lever provided on the tool body for switching the position of the switching member, wherein the press-fitting tool has the press-fitting portion protruding from the caulking portion when the load is applied when the switching member is in the first position. It is a hand tool for press-fitting and crimping into a steel ball, a cylindrical plug, or the like.

Therefore, in the above-described press-fitting and caulking hand tool of the present invention, the rear end portion is projected to the switching shaft in the first position by bringing the press-fitting tool into contact with the steel ball or the cylindrical plug and applying a load with a hammer or the like. The load is also applied to the press-fitting tool that is hitting, so that the steel ball or the cylindrical plug is securely press-fitted into the press-fitting recess of the hole. After the press-fitting is completed in this way, by pressing the push lever, the switching shaft is switched to the second position which allows the press-fitting tool to be retracted, and the press-fitting tool can be slid with respect to the caulking tool, and a further load by a hammer or the like is applied. When the pressing force of the return spring of the press fitting is still applied to the steel ball or the cylindrical plug, the caulking part of the caulking device is driven into the counterbore surface, thereby forming the caulking ridge. Therefore, the steel ball or the cylindrical plug is caulked.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. In addition, FIG. 1 is a view showing the structure of a press-fit caulking hand tool,
FIG. 2 is a view for explaining a working state of the press-fit caulking hand tool.

In FIG. 1, 3 is a press-fitting tool, 4 is a caulking tool,
The tool body 10 is integrally assembled with a press-fitting tool 3 for press-fitting a steel ball or a cylindrical plug into a press-fitting recess and a caulking tool 4 for caulking. The tool body 10 is provided with the caulking tool 4 at one end on the lower side in the figure, and a downward load is applied from the other end side on the upper side in the figure. In addition, press fitting 3
Is slidably incorporated in the tool body 10 through the center of the crimping tool 4, and the press-fitting portion 3a at the lower end in the drawing can be projected and retracted from the center of the crimping portion. That is, the press-fitting tool 3 is urged by the built-in return spring 5 so that the press-fitting portion 3 a always projects from the caulking tool 4.

Then, in the tool body 10 near the rear end side of the press-fitting tool 3, that is, the other end side where a load is applied, a first position for transmitting the load received at the other end of the tool body 10 to the press-fitting tool 3 and a press-fitting portion. A switching shaft 6 is housed as a switching member that switches between the second position of 3a that allows the caulking portion 4a to be retracted. The switching shaft 6 includes a push lever 7 protruding from a side surface of the tool body 10.
It is configured to switch between the first position and the second position by pressing the lever 7, and further includes a return spring 8 for pressing the lever 7.

In the above-described first position, the large diameter portion of the switching shaft 6 is located on the slide axis of the press-fitting tool 3, and the rear end side of the press-fitting tool 3 contacts the switching shaft 6 to prevent further immersion. Along with
The load can be transmitted from the tool body 10 to the press-fitting tool 3. However, by pressing the push lever 7,
Since the switching shaft 6 is pushed in while urging the return spring 8, the small diameter portion of the switching shaft 6 is located on the slide axis of the press-fitting tool 3 and the caulking tool 4 can be freely slid. Second that allows the press-fitting part 3a to be immersed
Switch to position.

The work procedure using the press-fit caulking hand tool having the above-described configuration will be described below with reference to FIG. First, the first work is to bring the press-fitting part 3a of the press-fitting tool 3 into contact with the steel ball or the cylindrical plug 2 (see FIG. 2 (a)), and with the push lever 7 released, the other end side of the tool body 10. Apply a downward load with a hammer or the like. By doing so, the load is transmitted to the press-fitting tool 3 via the switching shaft 6 in the first position, so that the steel ball or the cylindrical plug 2 can be press-fitted into the press-fitting recess 1a of the hole 1 (second See FIG. (B)).

Next, when pushing down the push lever 7 and applying a downward load again from the other end side of the tool body 10 with a hammer or the like, the switching shaft 6 is in the second position where the further press-fitting portion 3a is allowed to be retracted. The main body 10 compresses the return spring 5, and the caulking portion 4a located at the lower end of the caulking tool 4 reaches the counterbore surface 1b (see FIG. 2 (c)). When a load such as a hammer is further applied to the tool body 10 from this state, the load is directly transmitted from the tool body 10 to the caulking tool 4 and the caulking portion 4a is driven into the counterbore surface 1b, thereby caulking. Since the raised portion 1c is formed (see FIG. 2 (d)), the steel ball or the cylindrical plug 2 is reliably caulked by the crimped raised portion 1c (see FIG. 2 (e)). After the work is completed, push lever 7
When the tool main body 10 is lifted while releasing, the press-fitting tool 3 and the switching shaft 6 are automatically returned to their original states by the action of the return springs 5 and 8.

Effect of the Invention As a result of the above, according to the press-fit caulking hand tool of the present invention, the steel ball or the cylindrical plug is press-fitted into the press-fitting concave portion of the hole and is not caulked in a series of working steps without changing the hand tool. As a result, the workability of closing the hole is greatly improved. Moreover, since the press-fitting work of the steel ball or the cylindrical plug into the press-fitting recess and the caulking prevention work while pressing the press-fitting recess can be performed separately by switching the push lever, two types of work can be performed. All of these can be carried out reliably, and the effect of improving the reliability of hole closing is also exerted.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of a press-fit caulking hand tool in a steel ball or a cylindrical plug of the present invention, and FIG. 2 is an explanatory view of a working state of the press-fit caulking hand tool, wherein (a) is a steel ball or a cylinder. The state of abutting of the press-fitting tool to the plug, (b) the state of press-fitting into the press-fitting recess, (c) the state of push lever pressing,
(D) is a driving state diagram of the caulking portion of the caulking tool, and (e) is a completed state diagram of press-fitting and caulking. FIG. 3 is an operation state explanatory view in which a separate press-fitting tool and caulking tool are used for press-fitting into a press-fitting recess of a conventional steel ball or cylindrical plug and caulking prevention work, respectively. FIG. 6 is a press-fitting state diagram by a press-fitting tool, FIG. 7B is a caulking stop state diagram by a caulking tool, and FIG. FIG. 4 is an explanatory view of a working state by a hand tool having a press-fitting part and a caulking part, which is formed by integrating a conventional press-fitting tool and a caulking tool, and (a) is a state drawing of a steel ball or a cylindrical plug press-fitting process. , (B) is a state diagram of a caulking process, and (c) is a state diagram of completion of press-fitting and caulking. 1 ... hole, 1a ... press fitting recess, 1b ... spot face, 1c ... caulking ridge, 2 ... steel ball or cylindrical plug, 3 ... press fitting, 3a ... press fitting, 4 ... caulking Tool, 4a ... Caulking part,
5 ... Return spring, 6 ... Switching shaft, 7 ... Push lever, 8 ... Return spring, 10 ... Tool body, 3 '
...... Press-fitting tool, 3'a, 3 "a ... Press-fitting part, 4 '... Caulking tool, 4'a, 4" a ... Caulking part, 5' ... Press-fitting caulking tool.

Claims (1)

[Scope of utility model registration request] 1. A steel ball or a cylindrical plug is used to close the hole,
In a hand tool that press-fits the steel ball or cylindrical plug into the hole and caulks it, the tool body is provided with the caulking part at one end and the load is applied from the other end side, and the press-fitting part is formed at the tip Is a press-fitting tool that is slidably incorporated in the tool body so that it can project from the center of the crimped part, and is housed in the tool body at the rear end side of the press-fitting tool, and when a load is applied from the other end side of the tool body. A switching member provided so as to be switchable between a first position in contact with the rear end of the press-fitting tool and transmitting the load to the press-fitting tool, and a second position that allows the press-fitting section to be retracted from the caulked section. And a lever provided on the tool body for switching the position of the switching member, wherein the press-fitting device has the press-fitting part from the caulking part when the load acts while the switching member is in the first position. Formed to project Press-fitting the caulking hand tool such as a steel ball or cylindrical plug, characterized in Rukoto.