JP3083813U - Point cleaning machine - Google Patents

Abstract

(57) [Summary] [Problem] Lubricating oil is applied to point sliding surfaces in stations and yards, and maintenance personnel wipe off dust and degraded oil with human power and replenish them after cleaning. The working environment was poor and labor saving was desired. [MEANS FOR SOLVING PROBLEMS] The length of the flex shaft or the like of the JIS-B-9221 brush cutter is less than 1 m.
The length was improved to 5m, and the engine was placed on the ground so that it could be used even on the mid-seat. 2. A left-handed screw nut 15 was fixed to a commercially available cup brush to improve the cup brush 3 for left rotation. 3. An adapter 4 for tightening the left rotation cup brush 3 on the straight shaft 12 has been devised. By combining the above, the brush cutter could be improved to provide a point cleaning function.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a point cleaner for a railway line.

[0002]

[Prior art]

 At the branch point of the railway station and the yard, there are several points that can change course. At each point, multiple steel floor slabs are fixed on sleepers laid at short intervals, and the tongue rail slides over them to change the route, and each floor slab is slid. Lubricating oil is supplied to the moving surface to reduce frictional resistance. Maintenance staff regularly visit each point to wipe off dust and degraded oil by hand, and then refuel them.However, there is still no prior technology to save labor. It is a blind spot on maintenance, as it has not progressed.

[0003]

[Problems to be solved by the invention]

 Point cleaning is a work that involves sewing between trains, so there is a problem that work efficiency cannot be prioritized, and heavy machinery cannot be used for work that frequently moves between lines. In particular, a large number of point cleaning operations, especially under the scorching sun, are harsh. Even now, all of them have to rely on human power, and labor savings are desired.

[0004] 1. Focusing on the improvement of the JIS-B-9221 brush cutter (hereinafter referred to as JIS) shown in FIG. 4 with an engine and light weight, there was a problem that it could not cope with a change in working posture. Since point cleaning requires detailed work, satisfactory results cannot be obtained with a work posture in which the brush cutter is assumed to carry the engine 5 in an upright position. Desired. For this purpose, the most suitable posture is that the engine 5 is placed on the ground and the grip 6 and the loop handle 11 are held in hand. In other words, if the length of the power transmission mechanism such as the bending shaft of the brush cutter is less than 1 m, the work posture in the point cleaning work is limited and is inappropriate. In a power transmission mechanism in which the length from the engine 5 to the grip 6 of JIS is less than 1 m, the flexible shaft 7, the throttle wire 8, the stop wire 9 and the flexible tube 10 for protection have a length of 1.5 m to 2.5 m. A power transmission mechanism of the point cleaner 1 which is further improved and has a point cleaning function.

[0005] 2. Point cleaning machines use rotating brushes as cleaning members, but the issues here are safety and cost. Since rotating brushes are consumables, we would like to use commercially available products in consideration of cost, but it is necessary to simultaneously solve the conflicting issues of giving priority to safety. The following three types of rotating brushes are available on the market, and the issues will be examined and resolved for each type below. (1) "Rotating cup brush with shaft" shown in FIG. 3 (a) This is a brush that rotates while eating a shaft with a chuck. According to the description of JIS, the rotation direction is counterclockwise when viewed from the operator, so if it is not a counterclockwise chuck, it will loosen and cannot be used for safety, but there is no demand for a counterclockwise chuck in the market. Not commercially available. As a countermeasure, there is a method of developing a left-hand rotation chuck, or adding a gear to the power transmission mechanism and converting it to right-hand rotation. However, it is impractical in terms of cost. (2) “Rotary cup brush with right-hand threaded nut and without shaft” shown in Fig. 3 (b) This differs from the chuck in the previous section in the nut, but for the same reason as in the previous section, loosening is unavoidable and cannot be used for safety. (3) "Nutless, 10 mm hole, shaftless rotary cup brush" shown in Fig. 3 (c) Even if a bolt is inserted into the round hole 20 from the inner surface of the cup brush and tightened, the straight shaft 12 protrudes. There is a problem that only the end face 14 comes into contact, the contact area becomes insufficient, and the frictional force is insufficient to cause loosening. As a countermeasure, there is a method of improving the straight shaft 12, but it is impractical from the viewpoint of cost. In order to increase the contact area between the upper surface of the rotary cup brush and the coaxial rotary disk 13 as a second measure, a special liner is sandwiched between the two to tighten them with bolts. There is a risk of emitting. That is, even if the user forgets to attach the liner, the tightening force does not differ since the end surface 14 of the straight shaft is in contact with the liner. Therefore, the user may not notice the lack of frictional force. As the third measure, the most effective measure is to increase the contact area, that is, the frictional force. However, the screw between the nut 15 and the bolt 17 has a frictional force larger than the contact area necessary to prevent loosening. By changing the “right-hand thread” shown in FIG. 3B to the “left-hand thread”, the problem could be solved with minimum improvement. In the commercially available "Nutless, 10 mm hole, shaftless rotary cup brush" shown in Fig. 3 (c), the left screw nut 15 is fixed to the center of the upper surface, and the driving force can be transmitted by the frictional force of the screw thread. "Left-Rotating Cup Brush" 3.

[0006] 3. One end of the straight shaft 12 of the point cleaner 1 has a female left-hand thread, which has a diameter of 8 mm according to JIS. The nut 15 of the “left-hand cup brush” 3 is also a left-hand thread, so And an adapter 4 for transmitting the driving force by connecting to the adapter. One end is an 8 mm left-hand threaded bolt 16 that fits the straight shaft 12 of the point cleaner 1, and the other end is a left-handed bolt 17 that fits the nut 15 of the “rotating cup brush for left rotation” 3. Adapter 4 with operable bolt head 18. By combining the above, a point cleaner 1 with a point cleaning function.

[0007]

[Embodiment of the invention]

 The present invention starts by first obtaining a brush cutter for improvement. At that time, although it is not regulated by JIS, it has been confirmed that the engine is a one-point support system and can rotate 180 ° freely. Need to be kept. The reason for this is that if the flexible shaft is swung, the connection with the engine may be overwhelmed. In addition, a protective cover for the rotating blade is attached, but it is unnecessary, so remove it.

[0008] In order to improve the brush cutter, the length from the current engine to the grip is less than 1 m, and the length of the flexible shaft, the throttle wire, the stop wire and the flexible tube for protection are reduced to 1.5 m or more. It is necessary to replace it with one improved to 2.5 m. Since the specific replacement method differs depending on the manufacturer and model, detailed description is omitted.

[0009] The rotating cup brush is an improvement of a commercially available “rotating cup brush without a nut and with a 10mm hole and without a shaft” shown in FIG. 3 (c), and is compatible with the existing 10mm hole at the center of the upper surface of the cup brush. Then, the left screw nut 15 is fixed. The screw diameter may be set as appropriate, but it is preferable to use a dimension that can take advantage of the fact that a jig using an existing 10 mm hole can be used as a method for accurately determining and fixing the center.

In the point cleaning machine 1 having the function of cleaning the point, the 8 mm bolt 16 of the left screw at one end of the adapter is tightened to the straight shaft 12, and the left side bolt 17 of the other end is attached to the cup brush 3. Since the nut 15 is tightened and the attachment of the loop handle 11 is originally movable, it can be used if it is fixed at a position convenient for the operator. The engine 5 is placed on the ground, started, the grip 6 and the loop handle 11 are operated, and the point cleaning work can be performed in a flexible working posture.

At the time of movement, since the point cleaner has a type such as a shoulder as in the case of the brush cutter, it may be moved by carrying on the shoulder or by hanging the shoulder. The cup brush is a consumable item, but its maintenance is the same as that of a regular commercial product. In other words, if the abrasion deformation of the brush becomes large, it is replaced.

[0012]

【Example】

 FIG. 1 is an overall view of the point cleaning machine of the present invention. FIG. 2 is an enlarged exploded view of a tip portion of the power transmission mechanism in FIG. Fig. 3 shows the types of commercially available products. (A) "Rotary cup brush with shaft" (b) "Rotary cup brush with right-hand threaded nut and shaftless" (c) "Nutless with 10mm hole, shaftless" Rotating cup brush. " FIG. 4 is an overall view of a conventional JIS-B-9221 brush cutter. 1. In the power transmission mechanism which is the point cleaning machine 1 but the length from the engine 5 to the grip 6 of JIS is less than 1 m, the flexible shaft 7, the throttle wire 8, the stop wire 9 and the protective flexible tube 10 are used. After replacing it with the one improved to 1.5 to 2.5 m in length, bundle it by appropriate means so that the flexible shaft and the protective flexible tube do not separate. 2. In the commercially available “cup without nut, 10 mm hole, shaftless rotary cup brush” shown in FIG. 3 (c), the left screw nut 15 is placed at the exact center of the upper surface of the rotary cup with a jig using the existing 10 mm hole. After positioning, it sticks. 3. One end is a left screw 8 mm bolt 16 that fits the straight shaft 12 of the point cleaner 1, the other end is a left screw bolt 17 that fits the nut 15 of the rotary cup brush 3, and a spanner is provided in the middle. A new adapter having a bolt head 18 that can be operated with is created. 4. The combination is completed when one end 16 of the adapter 4 is fastened to the straight shaft 12 with a wrench and the rotating brush 3 is fastened to the other end 17 of the adapter with a wrench. However, this combination order may be changed. Further, if the attachment of the loop handle 11 is adjusted to a convenient position, a new point cleaning function is provided.

[Effect of the invention]

 1. The conventional manual wiping and cleaning work was greatly labor-saving by mechanization. 2. Both the brush cutter and the "rotating cup brush for left rotation" are commercially available products, and some of them are improved for point cleaning machines, which is advantageous in terms of cost and workability. Is also excellent. 3. Since the improvement is performed while maintaining the basic performance of the brush cutter, it can be used for mowing.

[Brief description of the drawings]

FIG. 1 is an overall view of a point cleaner according to the present invention.

FIG. 2 is an exploded view in which a front end portion of the power transmission mechanism in FIG. 1 is enlarged.

FIG. 3 shows a type of a commercially available rotating cup brush. (A) “Rotary cup brush with shaft” (b) “Rotary cup brush with right-hand threaded nut and shaftless” (c) “Rotary cup brush with no nut and 10mm hole and shaftless”

FIG. 4 is an overall view of a JIS-B-9221 brush cutter.

[Explanation of symbols]

 1 Overall view of point cleaner 2 Enlarged exploded view of tip of power transmission mechanism 3 Rotating brush for left rotation 4 Adapter 5 Engine 6 Grip 7 Flex shaft 8 Throttle wire 9 Stop wire 10 Flexible flexible tube 11 Loop handle 12 Straight Shaft 13 Coaxial turntable 14 End face of straight shaft 15 Left screw nut 16 Left screw bolt suitable for straight shaft 12 Left screw bolt suitable for nut 18 Bolt head 19 Right screw nut 20 Existing 10 mm hole

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[Procedure amendment]

[Submission date] September 6, 2001 (2001.9.6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (1)

[Utility model registration claims] 1. In a power transmission mechanism in which a length from an engine (5) to a grip (6) of a JIS-B-9221 brush cutter is less than 1 m, a flexure shaft (7), a throttle wire (8), a stop wire (9) and the same. A power transmission mechanism for a point cleaner (1) having a protective tube (10) with a length of 1.5 m to 2.5 m and a point cleaning function. 2. As shown in FIG.
"Rotary cup brush for left rotation" with a left screw nut (15) fixed to the center of the upper surface of the "rotary cup brush with mm hole and shaft" to enable transmission of driving force by the frictional force of the thread. (3). 3. One end is a left-handed screw bolt (16) adapted to the straight shaft (12) of the point cleaning machine (1), and the other end is a left-handed bolt adapted to the nut (15) of the "rotating cup brush for left rotation" (3). (17) An adapter (4) having a bolt head (18) which can be operated with a spanner in the middle. A point cleaning machine (1) provided with a point cleaning function by combining the above.