JPH0729762Y2 - Tillage nail - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a tilling claw that is fitted and held in a tilling claw holder provided on a tilling shaft of a tiller.

(Prior Art) A tilling claw for plowing soil is fitted and held in a tilling claw holder provided on a tilling shaft of a tiller. On the surface of this tillage nail, the product number, the manufacturing date, etc. were described by combining letters, numbers, or figures. In order to describe the product number, the manufacturing date, etc., a pair of metal molds attached to the press are brought close to each other in the production process, and the mold pressing work is performed. That is, the plow placed on the die is pressed with a punch that is provided with a mechanism for entering the product number, the manufacturing date, etc., and the product number, the manufacturing date, etc. are displayed on the surface of the plowing claw. It was described. This mechanism was complicated because each plow had to be stamped with a different product number, manufacturing date, etc., as a matter of course. Therefore, this mechanism often breaks down, which causes a problem in the production process and lowers the production efficiency.

Also, when the tiller used in the tiller is worn and worn out, it must be replaced with another new tiller, but if the tiller's mold is old, the old one used for it There may be no stock of tillage nails. In this case, of the tilling claws used for the new type of tiller, those that can be used are used. However, since the new model number is engraved on this new-type tiller, the old model number must be stamped out by deleting the new model number, and the new model number must be erased. It is impossible to stamp the product number. Therefore, even though a new type of tilling nail can be diverted,
There is also a problem that old-type tillage claws must be kept in stock forever, resulting in extra costs.

(Means for Solving the Problem) In order to solve such a problem, in the present invention, the fastener is inserted into the tillage claw holder and the fastener is inserted into the attachment hole and held. At the base end of the plowing claw, forming a circular or rectangular shaped recess having a suitable width and depth on the surface of an appropriate place around the hole for attachment of the base end,
Characters, numbers, figures or the like representing the product number of the tilling nail are printed on the recess.

(Operation) Since letters, numbers or figures are printed on the surface of the tillage nail, the letters, numbers or figures can be written after the production process is completed. Further, it is possible to print the letters, numbers or figures of the old-type tiller on the letters, numbers or figures printed on the new-type tiller.

(Example) Hereinafter, this invention is demonstrated based on drawing. 1 and 2 are views showing an embodiment of the tilling claw according to the present invention.

In FIG. 1, reference numeral 1 is a tilling shaft of a tiller, and this tilling shaft 1 is provided with a tilling claw holder 2, and this tilling claw holder 2 is provided.
A tilling claw 3 for plowing the soil is inserted and held in the. A hole 5 is formed in the base end portion 4 of the tilling claw 3 to be fitted into the tilling claw holder 2, and a bolt penetrating the tilling claw holder 2 is inserted into the hole 5 and fastened with a nut, whereby the tilling claw 3 is formed. Is fixed and held on the tiller holder 2.
As shown in FIG. 2, a concave portion 6 having a rectangular outer shape is formed on the base end portion 4 on the tip side of the hole 5 (upper side of the hole 5 in FIG. 1) and has an appropriate size such that printing described later can be performed. It is formed to have a depth. The product number 7 and the date of manufacture are printed on the recess 6 by combining letters, numbers and figures.

As a method of this printing, for example, there is a method of controlling the flight of charged magnetic ink droplets and applying them. This method
First, magnetic particles are mixed into an ink liquid to form a magnetic ink. This magnetic ink is made into small droplets by a vibrator, and these small droplets are ejected from the nozzle toward the concave portion 6 of the tilling nail 3.
The ejected droplets are charged with a constant electric charge by the accelerating electrode and further deflected by the deflecting electrode to be formed in the concave portion 6 as characters, numbers or figures. In this way, the product number, the manufacturing date, etc. are written in the recess 6 of the tiller 3.

In this way, since the product number, the manufacturing date, etc. are printed on the tillage nail 3, the product number, the manufacturing date, etc. can be written after the end of the production process. Therefore, it is possible to improve the production efficiency without hindering the production process even when the product number, the manufacturing date, and the like are written on the tiller.

Also, because the product number is printed on the tillage nail,
It is possible to print another product number on top of the printed product number. That is, the product number of the tillage nails used in the old-type cultivator is printed on the product number of the tillage nails used in the new-type cultivator. For this reason, a new type of tillage claw with the old model number is
It can be used for old-type tillers. Therefore,
It is not necessary to keep the tillers used in old-type tillers in stock forever, and the extra cost for this can be saved.

Further, since the product number, the manufacturing date, etc. are described in the recess 6 formed in the base end portion 4 of the tilling claw 3, when the tilling claw 3 is fixed / held in the tilling claw holder 2, etc. The contact between the claw 3 and the tilling claw holder 2 prevents the product number, the manufacturing date, etc. from being erased. In the case of the embodiment described above, when the concave portion 6 side is inserted into the holder so as to contact the inner wall of the holder, and the nut is screwed into the bolt that inserts the hole 5, the proximal end portion 4 of the tiller claw 3 is tightened. The edge (edge) of the concave portion 6 on the outer side of the hole strongly contacts the inner wall of the holder, and when a force acts on the claw 3, the point of force is on the outer side of the hole, and the moment due to friction increases accordingly.
Therefore, there is an effect that the bolt nut is not loosened and the claw can be prevented from falling off.

FIG. 3 shows another embodiment of the tillage nail according to the present invention. In this embodiment, a concave portion 8 having a circular outer shape centered on the hole 5 is formed around the hole 5 of the base end portion 4 of the tilling claw 3, and the concave portion 8 has the hole 5 as the center. 9 and the date of manufacture are printed. It should be noted that this embodiment also has the same effect of preventing the nail from falling off as in the previous embodiment.

(Effect of the Invention) As described above, according to the present invention, since the characters, numbers, or figures are printed on the surface of the plowing nail, the characters, numbers, or figures are described after the end of the production process. Therefore, it is possible to improve the production efficiency without affecting the production process. In addition, since the letters, numbers, or figures of the old-type tiller can be printed on the letters, numbers, or figures printed on the new-type tiller, the tiller used in the old-type tiller can be printed. No longer has to be kept in stock for a long time, and the extra cost for this can be saved.

[Brief description of drawings]

1 and 2 are views showing an embodiment of the tilling claw according to the present invention. FIG. 1 is a plan view showing the tilling claw on which letters, numbers or figures are written, and FIG. In Figure 1
FIG. 11 is a sectional view taken along line II-II. FIG. 3 is a view showing another embodiment of the tilling claw according to the present invention, more specifically, a plan view showing a base end portion of the tilling claw in which letters, numbers, or figures are described. 2 ... Tilling claw holder, 3 ... Tilling claw 4 ... Base end part, 6,8 ... Recessed part 7,9 ... Letters, numbers or figures

Claims (1)

[Scope of utility model registration request] 1. A base end portion of a tilling pawl that is fitted into a tilling pawl holder and is held by inserting a fastening tool into the mounting hole, the periphery of the mounting hole of the base end portion being suitable. A circular or rectangular recess having an appropriate width and depth is formed on the surface of the place, and a character representing the product number of the tilling claw is formed in the recess.
A tilling nail characterized by printing numbers or figures.