JPH036650Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a plow end confirmation pole provided at the upper side end of a plow of a snowplow.

[Prior art and its problems]

FIG. 4 shows a schematic diagram of a conventionally known pole. In the figure, 1 is a pole base, 2 is a pole body, and 3 is a pole fixed to the upper end of the pole body 2. The pole base 1 is fixed to the upper end portions of both sides of the plow 4 by welding and adhesive, respectively. This pole base 1 consists of a cylindrical part 5 and a support plate 6, and the lower end of the pole main body 2 is inserted into the cylindrical part 5. The mounting bolt 7 and nut 8 pass through the cylindrical portion 5 and the lower end of the pole body 2 to attach the pole body to the pole base 1, thereby forming a pole 9 that stands upright. Such a pole 9 has a required height, usually about 260 mm to 270 mm, so that its position can be sufficiently confirmed from inside the cab. However, due to shocks generated on the plow 4 during snow removal work or vibrations during running, the welded part between the pole base 1 and the plow 4 may crack due to impact or fatigue, and the mounting connection using the mounting bolts 7 and nuts 8 may be damaged. There was a risk that noise would be generated due to wear, deformation, or rattling of parts. Furthermore, since the pole 9 is deformed by external impact, it is often necessary to remove the mounting bolt 7 and nut 8 and replace the pole 9.
In order to prevent such drawbacks, FIG. 5 shows a schematic configuration diagram of a conventionally known pole with a buffer member,
A is spring external type, B is spring internal type,
C is a buffer rubber internal type, and D is a buffer rubber external type. In FIG. 5, view A shows a spring-covered type in which a spring 12 is fitted between the pole base 10 and the lower end portion 11 of the pole. 13 and 14 are collars that hold the spring 12. Note that FIG. B shows a spring internal type in which a spring 12 is installed between the pole base 15 and the lower end portion 16 of the pole. 17 is the pole base 15 and the lower end of the pole 1
This is a cushion for cushioning shocks and vibrations between 6 and 6. Further, in FIG. C, the pole base 18 and the lower end portion 19 of the pole hold the upper and lower ends of the cushioning rubber 20 inside, respectively. Furthermore, in Figure D, the pole base 21 and the pole lower end 22 are
This is an externally supported buffer rubber type in which the upper and lower ends of the buffer rubber 23 are respectively supported externally. 24 in FIGS. C and D is a hollow portion provided in the cushioning rubber 20, 23. Such a buffer member, that is, the spring 12 or the pole with the buffer rubber 20, 23, can absorb the impact or vibration of the welded part due to its elasticity, and can prevent the occurrence of cracks. However, when these cushioning members are used for the plow of a snowplow, the flexible elasticity of the cushioning members causes too large fluctuations due to shock or vibration, making it difficult to visually observe the position of the plow. Another disadvantage was that there was a risk of collision with the cab structure, resulting in damage.

[Purpose of invention]

In view of the above-mentioned points, the present invention aims to provide a plow end confirmation pole that effectively solves the problems of the prior art, has a simple structure, is easy to manufacture, and can withstand long-term use. do.

[Key points of the idea]

In order to achieve this purpose, the present invention
A pole base installed at the top of the side end of the plow, a pole body installed upright on the pole base and having a required height, and a pole body installed between the pole base and the pole body from the outside. A wire rope capable of mitigating the shock and vibration of the vehicle.

[Example of idea]

Next, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 shows a schematic diagram of an embodiment of the present invention. In the figure, parts having the same functions as in FIG. 4 are given the same reference numerals. The plow end confirmation pole 25 is mainly composed of a pole base 26, a pole portion 27, and a wire rope 28. Of these, the pole base 26 consists of a cylindrical portion 29 and a support plate 30, and the lower end portion of the wire rope 28 inserted into the cylindrical portion 29 is welded and bonded. Further, the pole portion 27 includes a pole main body 27A, the upper end of which is screwed onto the pole 3, and the lower end of which is inserted into the collar 31 and bonded by welding. The upper end of the wire rope 28 and the collar 31 are each inserted into the collar 32 and welded and bonded, so that the pole base 26, the pole portion 27, and the wire rope 28 form the integrated plow end confirmation pole 25. Configure. Of course, if the outer diameter of the pole body 27A can be directly inserted into the inner diameter of the collar 32, the collar 31 becomes unnecessary and the pole body 27A
There is also no need to weld and bond the lower end of the collar 31 to the collar 31. This plow end confirmation pole 25 is connected to the support plate 3
The plow 4 is installed at both upper ends of the plow 4 by means of mounting bolts 34 inserted into the mounting holes 33 of the plow 4 (FIG. 2).

By the way, the wire rope 28 conforms to the JIS standard.
Specified in No. G3525 and has the required strong elasticity. In this embodiment, this wire rope 28 has an outer diameter of
The length should be about 26mm and the height should be about 90mm. On the other hand, the pole body 27A of the pole portion 27 has an outer diameter of 19
It is thinner than the wire rope 28, and has a height of about 120 mm. For this purpose, the inner diameter is 19
It requires a connecting collar 31 with an outer diameter of about 26 mm and a length of about 40 mm.

Therefore, the plow end confirmation poles 25 installed at the upper ends of both sides of the plow 4 as shown in FIG.
Damage may occur due to cracks in the welded parts of the pole 25 at multiple locations due to shocks generated by the plow 4 during snow removal work and vibrations during running, or damage due to excessive flexibility of the spring 12 or buffer rubber 20, 23, etc. as shown in FIG. This makes it easy to understand the intended vehicle width limit. Note that 34A and 34B are a plow cutting edge plate and a snow protection plate.

Next, FIG. 3 shows a schematic diagram of another embodiment of the present invention. In FIG. 3, parts having the same functions as those in FIG. 1 are given the same reference numerals. The plow end confirmation pole 35 is connected to the wire rope section 36
and a pole portion 37. Among these, the wire rope part 36 has a cylindrical pole base 38 whose lower end is welded and bonded to the plow 4, a lower end which is inserted into the cylindrical pole base 38 and welded and bonded, and an upper end formed by a male threaded member. 39 and a wire rope 40 that is welded and connected. Further, the pole portion 37 includes a pole body 42 whose lower end portion is welded and bonded to a female threaded member 41 . By screwing together the male threaded member 39 and the female threaded member 41, the plow end confirmation pole 35 is integrally formed. Therefore, if the pole part 37 is damaged, it can be easily replaced with another new pole part 37 after the male threaded member 39 and the female threaded member 41 are unscrewed.

[Effect of idea]

As described above, according to the present invention, a pole base provided at the upper side end of the plow, a pole body having a required height, and a pole base provided between the pole base and the pole body are provided. By providing a wire rope, the problems of conventional technology such as damage and noise caused by external shocks and vibrations are effectively solved, and it has an appropriate buffering performance and also confirms the vehicle width restriction, which is the original purpose. It has advantages such as easy construction, simple construction, easy manufacture, and long-term use.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of an embodiment of the present invention;
3 is a schematic diagram of another embodiment of the present invention, FIG. 4 is a schematic diagram of a conventionally known plow end confirmation pole, and FIG. The figures show schematic configuration diagrams of conventionally known poles with shock absorbing members, in which figure A is a spring external type, figure B is a spring internal type, figure C is a cushioning rubber internal type, and figure D is a buffer rubber external type. It is a formula. 4... Plow, 25, 35... Plow end confirmation pole, 27, 37... Pole part, 28, 40...
...Wire rope, 27A, 42...Pole body,
26, 38...Pole base, 31, 32...Collar, 39...Male thread member, 41...Female thread member.

Claims (1)

[Scope of utility model registration request] A snowplow equipped with a plow for snow removal includes a pole base provided at the upper side end of the plow, a pole body provided upright on the pole base and having a required height, and the pole base. A plow end confirmation pole comprising a wire rope interposed between the stand and the pole body and capable of mitigating external shocks and vibrations.