JPH0330421Y2 - - Google Patents

Description

[Detailed description of the invention] 3-1 Field of industrial application This invention relates to a stand fixing device for a furrow cutter that is widely used when cutting furrows in fields or paddy fields.

3-2 Prior Art Conventionally, as a means for fixing the stand of a groove cutting machine, which has been widely used for cutting grooves in fields or paddy fields, as shown in FIG. The support shaft 2 is horizontally mounted and fixed below the fixed stand mounting bracket 1,
A coil spring 4 is interposed and tensioned between the middle of the stand 3 whose upper part is pivotally attached to the support shaft 2 and the stand mounting bracket 1, and the stand 3 is always urged upward by the coil spring 4. or adopt a format that allows the stand 3 to be held in place by
Alternatively, as shown in Fig. 8, the stand 7 is held in a fixed position with a pin 6 that can be inserted below the stand mounting bracket 5, and the pin 6 is removed when cutting the groove. Normal. However, in the case of the type shown in FIG. 7, the coil spring 4 contracts momentarily upon contact with a foreign object, causing the stand 3 to rotate in the direction of the arrow.
For this reason, there is a risk that the groove cutter may tip or fall, and in the case of FIG. 8, each time the stand 7 is used or not, the pin 6 is
In addition to being forced to insert and remove the pin from the pin, it is difficult to avoid the feeling of complication, and there is also a slight risk that powder may be lost after the pin is removed.

3-3 Means for Solving Problems This invention provides a prime mover at the rear end and a rotor at the front end of an outer tube in which the transmission shaft is housed, as well as a handle projecting upward from the prime mover and a handle extending downward. In a grooving machine comprising a grooving plate and a stand mount near the grooving plate, the stand mount has a sealed part and an open part, and a support mounted near the lower end of the grooving plate. A support member with an elongated hole that fits around the shaft is installed in the stand mounting bracket so as to be freely retractable, and the stand is fixed below the support member so that the stand is in a fixed position when the support member is pushed into the stand mounting bracket. The stand is rotatable when set near the support shaft of the support member, making it easy to handle and maintaining a stable state during use.

3-4 Configuration An embodiment of this invention will be described below with reference to FIGS. 1 to 6. The groove cutting machine M is installed at the rear end of the outer tube 13 (Fig. 1, 2) in which a transmission shaft (not shown) is installed.
In the figures and FIG. 5, the left end is the front, and the right side is the rear. ) is connected to a prime mover E, for example, an engine, and a rotor 20 is attached to the front end of the engine E via a gear housing 19, and a substantially U-shaped handle 11 projects upward from the engine E, and a grooved plate Q is provided downward in parallel. A stand attachment fitting 15 is attached to the outer tube 13 near the grooved plate Q. The connecting plate a at the front end of the handle 11 is fixed to an outer tube 13, and a handle mounting bracket 14 is fixed to the outer tube 13 with a fastener j such as a stud or screw.
A stand mounting bracket 15 is fixed and suspended below the front end of the stand. However, as shown in FIGS. 3 and 4, the lever stand mounting bracket 15 forms a sealed part C with a rectangular cross section in the upper part, and an open part F by cutting out the rear part in the lower part. Then, insert the pin P into the through hole h drilled at a suitable location in the part where the opening f exists, and insert the snap pin n through the hole i of the pin P via the flat washer W to attach the support shaft 16. A supporting member 17 having a long hole d that fits loosely with the pin P is inserted into the inside of the stand mounting bracket 15, and a grounding member 17 whose lower end is bent horizontally is placed below the supporting member 17. Attach the upper part of the stand 18 with piece b, and then attach the ground piece b
is set on the ground surface g (when using the stand 18), the upper part of the support member 17 is fitted and held in the sealed part C of the stand mounting bracket 15, and the groove cutter M is placed on the stand 18 side. When the stand 18 is not in use, the upper part of the support member 17 faces the open part f, and the rear end of the outer tube 13 is The stand 18 can be locked to the attached stand locking fitting u when not in use. In the figure, T is the fuel tank, 12 is the carburetor, 19 is the gear case,
20 is a rotor, 21 is a resistance plate, and 22 is a rotor cover.

3-5 Function Since this device has the above-mentioned configuration, during groove cutting work, the grounding piece b of the stand 18 is engaged and held by the stand latching fitting u, and the rotation of the rotor 20 causes the groove cutting plate Q to Cutting ditches in fields, paddy fields, etc. After the work is completed, the grounding piece b of the stand 18 is detached from the stand latching fitting u and placed in the state shown in FIG. , support member 17
is fixed in a fixed position because its movement in the front-back direction (see Fig. 1) is restrained by the stand mounting bracket 15. At this time, the grounding piece b of the stand 18 is in close contact with the ground surface g, while the groove cutting Since the machine M is held in an attitude slightly inclined towards the stand 18 side, the supporting member 17 is constantly receiving a force in the direction of being pushed into the sealed part c of the stand mounting bracket 15 due to the weight of the groove cutting machine M. There is no risk that the support member 17, and thus the stand 18, will unexpectedly separate from the stand mounting bracket 15.

Furthermore, when not in use, when the groove cutter M is lifted from the state shown in FIG. As the upper part of the stand 17 moves from the closed part c to the open part f as shown in FIG. It becomes possible to lock.

3-6 Effects According to this invention, the stand mounting bracket has a sealed part above and an open part below, and both of these parts are formed continuously, and the spindle attached to the stand mounting bracket The support member, which has a long hole that can be played with the support member, is fitted into the stand mounting bracket so that it can freely protrude and retract, so when using a stand that is integrated with the support member and making contact with the ground surface or other surface, the upper part of the support member must be inside the sealed part. As a result, the stand is fixed in a fixed position and there is no risk of it swinging or tilting accidentally, and when the stand is not in use, the groove cutter can be lifted up and the stand Because the support member descends under its own weight and is located in the open part, it can be easily rotated around the support shaft.Moreover, handling the stand is not complicated at all, and there are only a few components.
Since it is robust and can be produced at low cost, it has practical benefits for users, such as being convenient to handle and inexpensive to use.

[Brief explanation of the drawing]

Figure 1 is a front view of the product in use, Figure 2
The figure is a front view when not in use, Figure 3 is an exploded perspective view of the main parts of the product, Figure 4 is an enlarged sectional view taken along the - line in Figure 2, Figure 5 is a perspective view of the groove cutter, and Figure 5 is a perspective view of the groove cutting machine. 6 is a view taken along the - line in FIG. 5, FIG. 7 is a front view of one embodiment of the conventional stand fixing means, and FIG. 8 is a front view of another embodiment of the above. 11...Handle, 13...Outer tube, 15...Stand mounting bracket, 16...Spindle, 17...Support member, 18...Stand, 20...Rotor, E...
Prime mover, M...grooving machine, Q...grooving plate, c...closed part, d...long hole, f...open part.

Claims (1)

[Claims for Utility Model Registration] (1) A prime mover E is provided at the rear end of an outer tube 13 in which a transmission shaft is housed, and a rotor 20 is provided at the front end of the outer tube 13, with a handle 11 extending upwardly from said prime mover E and a handle 11 directed downward. Grooving machine M consisting of a groove cutting plate Q arranged and a stand mounting bracket 15 near this groove cutting plate Q
In the stand mounting bracket 15, a sealed portion C and an open portion f are formed, and a support member 17 with an elongated hole d that fits around a support shaft 16 attached near the lower end of the open portion f is attached to the stand mounting bracket. This support member 17
A stand fixing device for a groove cutting machine (2) in which a stand 18 is fixed to the lower part of the groove cutter. Scope of claim for utility model registration No.
(3) The stand fixing device for a groove cutting machine as described in paragraph (1), wherein the stand mounting bracket 15 has a U-shaped cross section at its open portion f. Stand fixing device for groove cutting machine.