JP2013241737A - Scoop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scoop with high practicability that can effectively enhance workability in discharge of excavation soil and excavation in a pit when the pit is dug to a small diameter.SOLUTION: A scoop 10 comprises a shovel plate 2, a rotary part 3 provided at a base of the shovel plate 2, and a handle part 1 having one end part pivoted rotatably on the rotary part 3. The rotary part 3 includes an angle adjustment structure 4 constituted by providing a plurality of through holes 5A, 5B, ..., on a surface curved in an arc shape, a lock rod 9 is housed in the handle part 1 to slide to penetrate and separate from the through holes 5A, etc., and a sliding device 8 is provided which allows the lock rod 9 to slide.

Description

  The present invention relates to a scoop, and more particularly to a scoop that can easily excavate excavated soil in a pit when excavating a small-diameter shaft and can improve excavation workability.

  The conventional scoop has a structure in which an excavator plate is fixed to the handle and these are integrated. However, with such a structure, when excavating a small-diameter shaft, it is difficult to discharge excavated soil in the shaft, and efficient excavation work cannot be performed. In order to solve this problem, various technical proposals have been conventionally made, but all have problems in practicality.

  Among them, in Patent Document 1 described later, one end of the handle is pivotally supported by a support shaft on a metal fitting provided at the base of the shovel plate, and a groove in a direction opposite to the tip end direction of the shovel plate is provided on the outer periphery of the metal fitting. And a groove in a direction substantially orthogonal to the groove, a check tooth is formed between the groove in the orthogonal direction and the groove in the opposite direction, and each groove and check tooth are formed in the handle direction groove formed in one end of the handle. A scoop is disclosed in which a stop plate is slidably fitted so as to be disengageable and provided with a slide device for the stop plate.

  With this configuration, the angle of the shovel plate with respect to the handle can be adjusted appropriately by operating the sliding device in the grip-relaxation operation at the handle gripping portion, and excavation work and excavation soil discharge work can be easily performed. It can be done.

Japanese Utility Model Publication No. 60-5099 “Scoop”

  However, the technology disclosed in the patent literature is also not practical. The reason is that as the excavator plate rotates repeatedly, the metal check teeth and grooves are clogged with soil, causing troubles in the rotation of the excavator plate and in fixing the position of the excavator plate by the stop plate. This is because the actions and effects disclosed in the literature cannot be realized satisfactorily. In addition, since the unusable situation occurs soon after the start of work, it is not practical at all. In other words, the patent document disclosure technology cannot effectively solve the problems listed therein.

  The problem to be solved by the present application is a highly practical scoop that can eliminate the problems of the prior art, discharge the excavated soil in the shaft when excavating a small-diameter shaft, and effectively improve the workability of the excavation. Is to provide.

  As a result of examining the above problems, the inventor of the present application provides the structure by which the attached soil is discharged from the rotating portion so that the excavated soil during excavation does not become an obstacle to the rotation of the shovel plate. As a result, the present invention has been completed. That is, the invention claimed in the present application, or at least the disclosed invention, as means for solving the above-described problems is as follows.

[1] A scoop comprising an excavator plate, a rotating portion provided at a base portion of the shovel plate, and a handle portion whose one end portion is pivotally supported by the rotating portion. The part is provided with an angle adjustment structure in which a plurality of through holes are provided on a curved surface in an arc shape, and the inside of the handle part is engaged so as to be able to penetrate into and leave the through hole by sliding. A scoop in which a latch is accommodated and a sliding device for sliding the latch is provided.
[2] The scoop according to [1], wherein the sliding device is provided at the other end of the handle.
[3] The scoop according to [1] or [2], wherein the sliding device uses a spring.

[4] The adjustment gripping portion for operating the sliding device is provided in the gripping ring portion of the handle portion, according to any one of [1] to [3] Scoop.
[5] The scoop according to any one of [1] to [4], wherein the angle adjusting structure is in the form of a strip curved in an arc shape.
[6] The rotating portion according to any one of [1] to [5], wherein the through hole is formed so that the through hole is opened to the outside of the scoop on either side thereof. scoop.

  Since the scoop of this invention is comprised as mentioned above, according to this, the excavation soil in a mine can be discharged | emitted efficiently at the time of excavation of a small diameter shaft, and workability | operativity of excavation can be improved remarkably. The scoop of the present invention does not clog the rotating part during operation as in the prior art (the technology disclosed in Patent Document 1), and the shovel plate can be rotated and the shovel plate can be fixed without any problems. it can. Of course, it is extremely practical because the work can be continued smoothly without causing an unusable situation shortly after the work starts.

It is explanatory drawing including the partially transparent part which shows the structure of this invention scoop Example. It is explanatory drawing which shows operation | movement of the sliding apparatus which concerns on an Example. It is explanatory drawing which shows operation | movement of the sliding apparatus which concerns on an Example. It is explanatory drawing which shows the attitude | position change of the shovel board of the scoop which concerns on an Example. It is explanatory drawing of the front view which shows the rotation part of the scoop which concerns on an Example, and its periphery. It is explanatory drawing of the right side view which shows the rotation part of the scoop which concerns on an Example, and its periphery. It is explanatory drawing of the back view which shows the rotation part of the scoop which concerns on an Example, and its periphery.

The present invention will be described in more detail with reference to the drawings.
FIG. 1 is an explanatory diagram including a partially transparent portion showing the configuration of the scoop embodiment of the present invention. Also,
2 and 3 are explanatory views showing the operation of the sliding device according to the embodiment, and FIG. 4 is an explanatory view showing the posture change of the shovel plate of the scoop according to the embodiment. As shown in these figures, the shovel 10 of the present invention includes an excavator plate 2, a rotating portion 3 provided at the base of the shovel plate 2, and a handle portion 1 whose one end is pivotally supported by the rotating portion 3. The rotation portion 3 is provided with an angle adjustment structure 4 in which a plurality of through holes 5A, 5B,... Are provided on a curved surface in an arc shape. The main configuration is that the locking rod 9 is accommodated so as to be able to penetrate and detach from the through hole 5A and the like by sliding, and a sliding device 8 for sliding the locking rod 9 is provided. Except as specifically described below, conventionally known techniques can be adopted as appropriate for specific designs and specifications such as materials, parts, and sizes used in manufacturing the scoop 10 of the present invention.

  In particular, the sliding device 8 of the scoop 10 is provided on the other end side of the handle 1 as shown in the drawing and uses a spring. Further, the adjusting grip 7 for operating the sliding device 8 is used. However, it can be set as the structure provided in the holding | grip ring part 6 of the handle | pattern part 1. FIG. That is, as shown in the figure, the handle portion 1 is formed of a hollow tube, and a locking rod 9 is incorporated therein, and the adjustment is exposed from the handle portion 1 continuously to the upper end portion of the locking rod 9. A gripping portion 7 is provided. The lower end of the spring provided on the upper end side of the locking rod 9 is fixed to a flange fixed at a predetermined position on the locking rod 9 as shown. The upper end of the spring is not fixed to the locking rod 9 but is fixed at a predetermined position in the upper part inside the handle 1.

  On the other hand, the lower end portion of the locking rod 9 is positioned on the extension line of the locking rod 9 in the through hole 5A or the like, that is, directly below the lower end of the locking rod 9 in a normal state where the spring is naturally extended. The scoop 10 is formed so as to penetrate through the through hole. The rotating portion 3 is connected to the rotating portion 3 and the shovel plate 2 connected to the rotating portion 3 through the holes of the pivotal support portions 13 and 13 provided in the handle portion 1 and the fixing holes provided in the rotating portion 3. Is attached to the handle portion 1 by means of attachment means 3B and 3N. Bolts and nuts can be suitably used as the attaching means 3B and 3N.

  With this configuration, in the present scoop 10, the spring of the sliding device 8 remains in a fully extended state when the adjustment gripping portion 7 is not operated normally. The part is located at the lowermost position (FIG. 2), is exposed from the lower end of the handle 1 and is just on the extension line of the locking rod 9 in the through hole 5A in the rotating portion 3, that is, directly below the lower end of the locking rod 9. It is in the state which penetrated the through-hole located in.

  Since the locking rod 9 passes through one of the through holes 5A and the like, the rotating portion 3 loses the freedom to rotate and is fixed at a specific position according to the restriction by the locking rod 9. That is, the rotating part 3 is fixed at a constant angle with respect to the handle part 1, and therefore the angle of the excavator plate 2 is also constant as illustrated in FIGS. 4 (a) to (d). It will be fixed to things.

  When the adjustment gripping portion 7 is operated, that is, when the user of the scoop 10 grips the adjustment gripping portion 7 that is normally at the lowest position and pulls it upward (FIG. 3, arrow G), the spring is contracted. Accordingly, the locking rod 9 to which the flange is fixed is pulled upward, and the lower end portion of the locking rod 9 moves away from the through hole 5A and the like and moves into the handle portion 1. Thereby, the rotation part 3 becomes free from the restriction | limiting by the latching rod 9, and comes to be able to rotate freely. In other words, by entering such a state, the angle of the shovel plate 2 with respect to the handle 1 can be appropriately adjusted.

  In a state where the adjustment gripping portion 7 is pulled upward, the angle of the shovel plate 2 with respect to the handle portion 1 is set to a desired angle using, for example, the upper edge of the excavation shaft, and the adjustment gripping portion 7 When the lifting operation is released, the spring constituting the sliding device 8 is released from the contracted state and returns to the fully extended state (FIG. 2). As a result, the locking rod 9 slides downward (the lower end side of the handle 1) and is inserted into the through hole located immediately below the through hole 5A and the like, thereby restricting the free rotation of the rotating part 3. Then, the excavator plate 2 is fixed to the handle portion 1 at a desired angle.

  FIG. 4 shows an example of adjusting the angle of the shovel plate 2 with respect to the handle 1 ((a) to (d)), but the present invention is not limited to these examples. In addition, (a) is a form of a scoop suitable for normal excavation work, (c) is a form of a scoop suitable for work of placing the excavation soil inside the shaft and lifting it upward, (b) is a form of its intermediate state, (D) has shown the form suitable for accommodation, respectively.

  FIG. 5A is an explanatory diagram of a front view showing a rotating part of a scoop according to the present embodiment and its periphery. Similarly, FIG. 5B is an explanatory view in a right side view and FIG. 5C is an explanatory view in a rear view. As shown in these drawings and each of the above-described drawings, the present scoop has a structure in which the angle adjusting structure 54 is formed in the shape of a strip that is curved in an arc shape. Further, it is assumed that the rotating portion 3 is formed so that the through holes 55A, 5B,... Are open to the outside of the scoop on either side (open end side).

  Note that the number and arrangement interval of the through holes 55A and the like to be provided are not limited regardless of the above description and the drawings shown. In short, as a form formed by the angle formed by the handle portion 51 and the shovel plate, a plurality of through holes 55A and the like that can be appropriately adjusted to a necessary form, and a locking rod 59 are inserted into the through holes 55A and the like. It is only necessary to be disposed at an appropriate interval so that the form can be fixed and used with sufficient practical strength and durability.

  Further, the band plate-like object forming the angle adjusting structure 54 is made of a material or a material that can be used with its form fixed and sufficiently practically strong and durable when the locking rod 59 is inserted into the through hole 55A or the like. It shall be formed with a thickness.

  With this configuration, the present scoop can reliably and stably adjust and fix the angle by inserting the locking rod 59 into the through hole 55A and the like. Further, since the through-hole 55A and the like are open to the outside of the scoop at any opening end side, even if excavated soil adheres by excavation work, the through-hole 55A is easily discharged to the outside of the through-hole 55A and the excavated soil. Therefore, the unusable situation due to soil clogging as in the prior art does not occur. Further, even if some soil adheres to the inner wall or the like such as the through hole 55A, they are also easily removed by insertion / removal of the locking rod 59 into the through hole 55A or the like.

<Supplementary explanation>
Hereinafter, various problems that have become apparent as a result of detailed examination of the operation status of the above-mentioned Patent Document 1 disclosed technology (hereinafter referred to as “prior art”) scoop by the present inventor, and that all of them have been solved by the present invention This will be described in detail again.
<1> In the prior art, there are three excavator plate fixing grooves (5, 6, 17), but there are only two (5, 6) that can actually be used. There are only two directions, right angle and right angle, and only one angle, that is, a right angle when using (6), can be used by rotating in actual work, which is very inconvenient.
However, according to the present invention, such inconvenience is eliminated (see paragraph 0028).

<2> In the prior art, the non-return tooth (7) cannot fix the shovel plate at an arbitrary position. Therefore, if the scoop is used at this position, the counter tooth (7) is unintentionally turned, which causes a safety problem. For example, the operation of throwing away the soil placed on the scoop is usually done by inverting the lifted scoop and turning the upper surface downward so that the soil falls from the scoop. At this time, the top plate (7) Since 9) is not in the groove, it rotates freely during the reversing of the scoop, so that the soil cannot be thrown away at an arbitrary position, and the soil may fall to the operator. Therefore, special attention is required for use in the position of the non-return tooth (7), and there is a great safety problem.
However, according to the present invention, such a problem does not occur (see paragraph 0023).

<3> In the prior art, the rotating portion is provided on the inner surface of the shovel plate base. Although this part is the place where the most soil can be raised on the excavator plate, a rotating part is provided there, so the soil cannot be raised and the work efficiency is improved. bad.
However, according to the present invention, such a problem does not occur (see paragraph 0009, etc.).

<4> In the prior art, there is a rotating part at the place where the soil on the shovel plate surface is raised, so that the grooves (5, 6, 17) of the rotating part are clogged as described above, so that the fixing is not secure. In addition, soil removal from the scoop is poor, and the weight of the attached soil makes the scoop heavy, and the user becomes tired.
However, according to the present invention, such a problem does not occur (see paragraph 0011, etc.).

<5> In the prior art, the stop plate (9) is exposed to the outside. Therefore, when the scoop is vigorously inserted into the soil, the stopper plate (9) moves in the direction of the handle groove (8) in the direction of the gripping portion due to soil, stone, etc., so that the fixing is released against the intention of the user. There is a possibility that.
However, according to the present invention, such a problem does not occur (see paragraph 0030).

  According to the scoop of the present invention, during excavation work of a small-diameter shaft, excavated soil can be discharged to the outside of the well, and the unusable situation due to soil clogging as in the prior art does not occur. Can be performed very efficiently. That is, since it has sufficient practicality, it is an invention that is highly usable in civil engineering, construction, horticulture, construction, and other wide industrial fields.

DESCRIPTION OF SYMBOLS 1, 51 ... Pattern part 2 ... Excavator plate 3, 53 ... Turning part 3B, 3N, 53B, 53N ... Mounting means 4, 54 ... Angle adjustment structure 5A, 5B, 5C, 5D, 55A, 55B, 55C, 55D ... Through hole 6 ... gripping ring part 7 ... adjusting gripping part 8 ... sliding device 9, 59 ... locking rod 10 ... scoop 13, 513 ... pivot part G ... pulling direction

Claims (6)

A shovel comprising an excavator plate, a rotating portion provided at a base portion of the shovel plate, and a handle portion whose one end portion is pivotally supported by the rotating portion. An angle adjustment structure is provided in which a plurality of through-holes are provided on an arcuately curved surface, and a locking rod is provided inside the handle so that the through-holes can be penetrated and removed by sliding. A scoop that is housed and provided with a sliding device for sliding the locking rod. The scoop according to claim 1, wherein the sliding device is provided at the other end of the handle. The scoop according to claim 1 or 2, wherein the sliding device uses a spring. The scoop according to any one of claims 1 to 3, wherein an adjustment gripping part for operating the sliding device is provided in a gripping ring part of the handle part. The scoop according to any one of claims 1 to 4, wherein the angle adjusting structure has a strip shape curved in an arc shape. The scoop according to any one of claims 1 to 5, wherein the rotating portion is formed so that the through hole is open to the outside of the scoop on either side.

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