JP2012026227A - Manual labor tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manual labor tool having good usability, which eliminates the need to replace a front end implement and to grip and operate a tip side of the front end implement, prevents an increase in weight caused by fixing the front end implement, and can be switched to use as a scoop or shovel.SOLUTION: In a manual labor tool 10, one end side of a grip part 12 of a grip section 11 of a bar-like member to be gripped with hands is turnably and pivotally supported on a turning shaft 31 in the lower part of a fan-shaped bag-shape part 26 formed on the upper side 24 of a scooping part 21 made of a rectangular plate-like member for scooping soil and sand. A protrusion 17 provided such that it can be embedded in the grip part side of the grip section is protrusively engaged in an engaging hole 27 formed on a fan-shaped end side 26a of the bag-shape part, and either of a bottom part 22 of the scooping part or a corner 25 of an included angle between the bottom part and a side edge 23 is turned so as to be at the lowermost position. Thereby, the scooping part 21 can be fixed on the grip section 11.

Description

  The present invention relates to a manual work tool, and more particularly, to a tool capable of switching functions according to work contents.

  If you need to break the solid ground and dig a hole, or cut the root of an underground cage, use a scoop (manual tool) whose tip is shaped like a sword. On the other hand, if you are working softly, such as scooping up the accumulated sand and sand, select a shovel (manual tool) whose tip is flat so that the amount of scooping is larger than the scoop. It is common to work.

  Here, in the manual work tool, there are cases where the names are properly used according to the shape thereof. In the present specification, as described above, the names of the scoop and the shovel are selectively used according to the shape of the tip side.

  In such a manual work tool, various devices have been devised to improve usability. For example, the optimum angle (posture) of the scoop scooping part with respect to the gripping part differs depending on the type of work. There is one that can adjust the angle of the scooping portion (for example, Patent Documents 1 and 2).

  As manual tools, tools suitable for performing manual work have different shapes on the tip side, and therefore, there are tools that can be replaced with tip tools suitable for the work (for example, Patent Documents 3 and 4). ).

  The scoop and shovel of the manual tools are different depending on whether the tip of the scooping part is a sword tip or a flat shape. (For example, patent document 5).

  The manual tools described in Patent Documents 1 and 2 can only adjust the posture of the scooping part with respect to the gripping part, and therefore cannot have two types of functions such as a scoop and a shovel. Even when the work site is in the mountains, it is necessary to carry two kinds of manual tools, which is an excessive burden.

  In the manual work tools described in Patent Documents 3 and 4, even if the tip tool having a different function such as a scoop and a shovel can be replaced, the tip tool must be held. If the switching operation is not performed, it cannot be used, and the operation is complicated, and as a result, it cannot be used.

  On the other hand, in the manual work tool described in Patent Document 5, since the shapes that are the characteristics of the scoop and the shovel are respectively provided in a part of the scooping portion, both functions can be used formally. Looks like it is possible. However, with this manual work tool, since the hypotenuse on one side of the scoop's sword shape is simply a straight line (flat shape), it is not possible to apply a large force by pressing the flat shape against the work target, A large amount of work objects cannot be obtained and it is not practical.

  On the other hand (from this), the scooping part is connected to the front end side of the gripping part so as to be able to rotate 180 degrees, and a shape that can be formed on the front end side of the scooping part is formed into a sword shape and a flat shape. There has been proposed a manual work tool that is devised so that when it is rotated twice, a fixing metal fitting is pressed against a sword tip shape or a flat shape located on the gripping portion side and positioned and fixed by a stopper (Patent Document 6).

JP 2003-20673 A JP 2004-108021 A JP 2002-233201 A Japanese Utility Model Publication No. 5-39202 Utility Model Registration No. 3122618 JP 2005-248676 A

  However, the hand tool described in Patent Document 6 can be used as a scoop or shovel by simply rotating the scooping portion without replacing the scooping portion (tip tool) on the tip side of the gripping portion. However, when selectively fixing the scooping part, it is necessary to operate the fixing bracket and stopper after gripping and rotating the scooping part that is dirty with the earth and sand. Various functional members must be attached, which increases the weight and makes it difficult to handle.

  Therefore, the present invention eliminates the need for exchanging the tip tool, gripping and operating the tip side of the tip tool, and avoids a significant increase in weight for fixing the tip tool. The purpose is to provide an easy-to-use hand tool that can be used as a shovel or shovel.

  The invention of a manual work tool that solves the above-described problems is a scooping portion of a plate-like member that is formed so that a work object can be scooped, and a grip of a bar-like member that is formed so that it can be gripped by hand. The scooping part and the gripping part are connected to each other via a rotating mechanism that rotatably supports the scooping part on one end side of the gripping part. And a stopper mechanism that restricts the rotation and fixes the relative position, and the scooping portion has at least two rotation side portions that form a rotation angle portion at a narrow angle. In addition, when the turning mechanism is in an upright posture, at least one of the turning side parts or the turning angle part is an angle range that is the lowest position in the extending direction of the gripping part. On the other hand, the stopper machine is formed in a structure that allows rotation in When one of the rotation side portions or the rotation angle portion is located at the lowest position, a protruding member perpendicular to the relative rotation surface of the gripping portion and the scooping portion is related to the receiving shape. It is characterized by being formed in a structure that locks together.

  In the present invention, the scooping portion (plate-like member) on one end side of the gripping portion is in an upright posture in a range where one of the rotating side portions or the rotating corner portion is at the lowest position, that is, a plane extending the scooping portion. The rotation side or the rotation angle can be switched to the tip side only by rotating the required rotation angle within the (rotation plane), and at the rotation position, the rotation plane Positioning and fixing can be achieved simply by engaging the protruding member protruding with respect to the receiving shape. Therefore, it is possible to switch by simply holding the unclean upper part and rotating it a little so that the rotating side or rotating corner is the tip, and a lightweight stopper mechanism for the projecting member and the receiving member at the switching position. It can be fixed with.

  As described above, according to the present invention, a simple stopper mechanism can be obtained by positioning the rotation side or the rotation angle portion on the tip side only by grasping the unclean upper portion of the scooping portion of the plate-like member and rotating it by a small amount. By merely engaging the protruding member with the receiving shape, it can be used as a scoop when the turning corner is switched to the tip, and as a shovel when the turning side is switched to the tip. Therefore, it is possible to easily switch the tip side to a desired shape and fix it with a lightweight stopper mechanism without exchanging the tip tool or gripping the dirty tip side of the tip tool, A lightweight and easy-to-use hand tool that can be easily used as a shovel or shovel can be provided.

It is a figure which shows the whole structure of 1st Embodiment of the manual work tool which concerns on this invention, (a) is the elevation, (b) is the side view. FIG. 2 is an elevational view different from FIG. 1 when used. It is a side view which shows the whole structure of the 2nd Embodiment. It is an elevation which shows the whole structure of the 3rd Embodiment.

  As an embodiment of the present invention, as in the above problem solving means, the scooping portion of the plate-like member that is formed so that the work object can be scooped and the hand-held part can be gripped by hand. A gripping portion of a stick-shaped member, and the scooping portion and the gripping portion pivotably support the scooping portion on one end side of the gripping portion. And a stopper mechanism that restricts the rotation and fixes the relative position, and the scooping portion has at least two side rotations that form a rotation angle portion at a narrow angle. When the rotating mechanism is in a standing posture, at least one of the rotating side portions or the rotating corner portion is the lowest position in the extending direction of the gripping portion. While formed into a structure that allows rotation in a range of angles The stopper mechanism is received by a protruding member in a direction orthogonal to the relative rotation surface of the grip portion and the scooping portion when one of the rotation side portions or the rotation angle portion is located at the lowest position. In addition to having a basic structure that is formed to engage and lock the shape, the following structure may be provided.

  As a first form, the scooping portion is located above the pivoting corner portion together with the pivoting angle portion on both ends of the pivoting side portion which is the bottom side of the lowest position in a standing posture. Even if it forms in the shape which has the said rotation side part used as a both-sides toward it, it is formed in the shape which rotates and positions one or both of the said rotation angle part to the said lowest position. Good.

  In this configuration, when the pivoting side is positioned at the lowest position, it is formed in a U-shape in which the pivoting side is also located on both sides, and the lowermost pivoting side and the side are formed. A rotation angle portion that is rotated to the lowest position is formed by the included angle with the side rotation side portion.

  As a second form, the turning mechanism restricts further turning after one of the turning sides turns to the lowest position, and conversely, the turning angle portion It may be formed in a structure that restricts further rotation after rotating to the lowest position.

  In this embodiment, when the stopper function fixes one of the rotation side portions or the rotation corner portion at the lowest position, the rotation function is not limited by restricting the free rotation of the scooping portion by hand. The rotation of the scooping portion can be limited within the range of rotation, and the scooping portion is fixed so that the stopper mechanism does not return in the reverse direction at the limiting position. Therefore, the scooping portion can be fixed by the stopper mechanism in a state where the scooping portion is rotated to the pivot limit position by the pivoting mechanism, and one of the scooping side portions or the pivoting corner portion of the scooping portion can be easily set to the lowest position. The fixing operation can be completed.

  As a 3rd form, the said scooping part may be formed in the sawtooth shape or the wave shape at least the said rotation side part which continues to the said rotation angle part.

  In this embodiment, when the turning corner is turned to the lowest position, the sawtooth-shaped or wave-shaped turning deformed portion is inclined at an adjacent position. Therefore, at the time of excavation using the ground with the root of the hook as a work target, the root of the hook can be easily cut by the sawtooth shape or the wave shape of the oblique rotation side.

  As a fourth aspect, the grip portion may be formed in a long shape, and a footrest portion that applies a foot to apply force may be provided in the vicinity of the scooping portion.

  In this embodiment, when the scooping part is inserted into a work target such as the ground, a force can be applied by putting a foot on the footrest part. Therefore, it is possible to repeatedly perform a task that is difficult with the power of the hand, and to reduce the work load.

  As a fifth form, the gripping portion that rotates about the rotation shaft as a structure in which the gripping portion of the rod-shaped member is rotatably connected to the scooping portion of the plate-shaped member by a rotation shaft. A space for accommodating the end portion of the scooping portion may be formed in an extended surface of the scooping portion, and the rotation shaft may be disposed on the end portion of the scooping portion. You may arrange | position the said rotating shaft so that it may pivotally support.

  In this embodiment, when the rotation shaft is disposed in the rotation space formed in the scooping portion, the gripping portion can be continuously provided in a direction coinciding with the extended surface of the scooping portion, and the force applied to the gripping portion. Can be transmitted to the scooping section without waste and inserted into the work object such as the ground. On the other hand, when the rotating shaft is disposed on the back side of the scooping portion, the gripping portion can be rotatably connected to the scooping portion with a simple structure, and can be manufactured at a lower cost.

  As a sixth form, the rotation shaft is arranged at a position where the center line in the width direction of the rotation side portion intersects the vertical line when the rotation angle portion is positioned at the lowest position. It may be provided and the grip part may be rotatably connected to the scooping part.

  In this embodiment, the rotation shaft may be arranged at the center of the scooping portion so that it is always symmetrical on both sides of the gripping portion. It can be added to the rotation angle portion located at the position, and excavation work can be performed efficiently.

  As a seventh form, when the grip portion is gripped with a hand, the size may be such that the scooping portion is located at a position adjacent to the hand.

  In this mode, the above-described effects can be obtained even with a manual work tool that works near the hand, not limited to the size of the work to be placed on the scooping part side, and the hand work can be performed conveniently. .

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 are views showing a first embodiment of a manual work tool according to the present invention.

  In FIG. 1, a manual work tool 10 is provided with a scooping portion 21 of a plate-like member that scoops a work object such as earth and sand on one end side of a gripping portion 11 of a bar-like member that is gripped by hand. Is pivotally supported (coupled) by a rotation shaft 31 on one end side of the grip portion 11 so that the plane direction is a rotation surface. The hand-operated tool 10 is used for gripping the gripping part 11 and, for example, crushing after smashing the solid ground, excavating a hole, or cutting a root of the ground, etc. The scooping part 21 is rotated relative to the shape of a sword-shaped scoop, or is used when scooping up the soft soil that is piled up. It can be rotated and used.

  The gripping part 11 is formed in a frame shape on the other end side of the grip part 12 and the grip part 12 of a rod-like part that grips the scooping part 21 connected to one end side so that the intermediate part is gripped with one hand. A grip portion 13 that grips the portion orthogonal to the extending direction with the other hand, and the operator grips the grip portion 12 and the grip portion 13 to excavate the earth and sand. In this way, it is possible to efficiently dig holes and the like.

  The scooping portion 21 has a bottom side (rotating side portion) 22 which is the lowest position and a side side (rotating side) heading upward on both sides of the bottom side 22 in the posture standing in the rotating state shown in FIG. Part) 23 and an upper side 24 which is the uppermost position, and is formed in a substantially quadrangular (U-shaped) shape. The center line C in the width direction between the side sides 23 and the rotating state shown in FIG. The center of the quadrangle where the vertical line V from the corner (rotation corner) 25 formed by the angle between the base 22 and the side 23 and intersecting at the lowest position when it is in the standing position A rotating shaft 31 connected to one end side of the grip portion 11 (grip portion 12) is disposed at a position shifted from the upper side 24 to the upper side 24 side.

  As a result, the manual work tool 10 places the bottom 22 or the corner 25 of the scooping portion 21 at a position that coincides with the extending direction of the gripping portion 11 and transmits the force applied from the gripping portion 11 during work without waste. It is possible to work while avoiding that the bottom 22 or the corner 25 serving as the action point of the scooping portion 21 is shifted from the extending direction of the gripping portion 11 and the entire tool is about to rotate.

  The scooping portion 21 has a valley fold line 21a in the vicinity of the rotation shaft 31 between the base 22 and the top side 24, and a valley fold line extending in a direction along the valley fold line 21a and adjacent to both side edges 23. 21b is formed, and is formed so as to be able to crawl a larger amount of earth and sand than a simple flat plate shape by forming a concave shape as a whole.

  Further, the scooping portion 21 is pivotally supported by the rotation shaft 31 so that the bag-shaped portion 26 that accommodates one end side of the grip portion 12 of the grip portion 11 that rotates relative to the opening portion 31 opens to the upper side 24 side. The bag-shaped portion 26 is formed in a fan shape that spreads toward one side 23 around the rotation shaft 31. That is, the scooping portion 21 has a rotation shaft 31 disposed on the bottom side of the bag-shaped portion 26, and the fan-shaped end 26 a of the bag-shaped portion 26 is pivotally supported by the rotation shaft 31 at one end side. The grip part 11 (grip part 12) that is being used is restricted from rotating relative to a sector or more.

  Further, the scooping portion 21 has an engagement hole (receiving shape) 27 on both sides (plane turning surface) of the fan-shaped end 26a of the bag-shaped portion 26 that restricts the rotation of the grip portion 12 of the grip portion 11. The grip portion 12 of the grip portion 11 is provided with a protrusion (projection member) 14 that protrudes and engages in a direction orthogonal to the engagement hole 27 so as to be buried.

  As a result, the manual work tool 10 holds the scooping portion 21 on the side 24 of the scooping portion 21 with little dirt so as to be in the coupled state shown in FIG. By restricting the gripping part 12 of the part 11 to be pivoted, it is possible to restrict the protrusion 14 from projectingly engaging with the engagement hole 27 and causing relative rotation in the opposite direction. Thus, it is possible to effectively perform operations such as scrubbing soft earth and sand in the form of a shovel with a flat tip.

  Further, the manual work tool 10 holds the scooping portion 21 so as to be in the connected state as shown in FIG. By restricting the gripping part 12 of the part 11 to be pivoted, it is possible to restrict the protrusion 14 from projectingly engaging with the engagement hole 27 and causing relative rotation in the opposite direction. It is possible to effectively perform operations such as digging a hole after breaking the solid ground in the form of a scoop with a tip of a sword.

  That is, the bag-shaped part 26 of the scooping part 21 constitutes a turning mechanism that rotatably connects and supports the scooping part 21 itself to one end side of the grip part 12 of the gripping part 11 together with the turning shaft 31. A stopper mechanism that limits the relative rotation of the grip portion 12 of the grip portion 11 and fixes the relative position is also configured. When the grip portion 12 of the grip portion 11 is relatively rotated within the bag-shaped portion 26 of the scooping portion 21, the protrusion 14 may be pressed and rotated so as to be buried in the engagement hole 27. When the bag-shaped portion 26 is relatively rotated to the fan-shaped end side 26a, the projection 14 protrudes into the engagement hole 27 to be engaged and fixed.

  Further, the scooping portion 21 has a base 22 that is curved in a gentle concave shape and is formed in a wave shape (or may be a sawtooth shape). As shown in FIG. In this case, the waveform of the bottom 22 can be used in an inclined state.

  As a result, when the hand work tool 10 has a root of a cocoon or the like in the ground of the work target, the hand tool 10 slides up and down while pressing the wave shape of the bottom 22 thereof, so that it looks like a scoop without a wave shape. Therefore, it is possible to cut more easily than the work of cutting by pressing with force, and the work load can be reduced.

  Further, the gripping part 11 has a leg bar 15 fixed in parallel with the upper side 24 in the vicinity of the scooping part 21 (bag-shaped part 26) of the grip part 12, and as shown in FIG. Even when the grip part 12 side is the upper side 24 or the side part 23 that is inclined, it is possible to apply a force downward by placing a foot on the footrest 15 and the scooping part 21 that pierces the hard ground. The work load can be reduced by adding a force larger than that of the hand to the corrugated base 22 that is pressed against the corner 25 or the root of the ridge in the ground.

  Thus, in the present embodiment, the upper side 24 of the scooping portion 21 that is not soiled is gripped and the gripping portion 12 of the gripping portion 11 is relatively rotated within the bag-shaped portion 26 to engage the protrusion 14 with the engaging hole 27. By simply engaging and locking, the base 22 or corner 25 can be positioned on the tip side and used as a scoop or shovel. Therefore, a simple and lightweight stopper mechanism can be obtained by easily rotating the scooping portion 21 into a desired shape without exchanging the scooping portion 21 and without gripping and operating the dirty tip side. Thus, it is possible to realize a lightweight and easy-to-use manual work tool 10 that can be fixed with the.

  Next, FIG. 3 is a figure which shows 2nd Embodiment of the manual work tool which concerns on this invention. In addition, since this embodiment is configured in substantially the same manner as the above-described embodiment, the same reference numerals are given to the same configuration, and characteristic portions will be described (the same applies to other embodiments described below). .

  In FIG. 3, the manual work tool 10 is formed by forming a bag-shaped portion 26 in the scooping portion 21 and pivotally supporting one end side of the grip portion 12 of the grip portion 11 with a rotation shaft 31 in the above-described embodiment. Instead of connecting and supporting the protrusion 14 in the engagement hole 27, the scooping portion 21 is simply flat and the grip portion 12 of the gripping portion 11 is positioned on the back side of the scooping portion 21. The shaft 31 is pivotally supported, and relative rotation of the gripping portion 11 and the scooping portion 21 is limited and fixed by causing the projection 14 to project and engage with an engagement hole 27 disposed at the same position. It is like that.

  Thereby, as shown in FIG. 1, this manual work tool 10 can effectively perform a work such as scooping soft soil in the form of a shovel with a flat tip, as shown in FIG. In addition, it is possible to effectively perform operations such as digging a hole after crushing the solid ground in the form of a scoop with a tip of a sword.

  As described above, in the present embodiment, it is possible to obtain the same operational effects as those of the above-described embodiment, and to make a simpler structure that does not form the bag-shaped portion 26, and to be a cheaper and lighter manual work tool. 10 can be realized.

Next, FIG. 4 is a figure which shows 3rd Embodiment of the manual work tool which concerns on this invention.
In FIG. 4, the manual work tool 10 has a structure in which the bag-shaped portion 26 of the scooping portion 21 is formed in a fan shape extending toward the one side 23 and only one end side of the bottom 22 is used as the corner 25 in the above embodiment. In addition to this, the bag-shaped portion 26 is formed in a fan-shaped shape extending to both sides 23 and is also engaged with the fan-shaped end 26a side of the bag-shaped portion 26 expanded to the other side. A hole 27 is formed so that the projection 14 of the grip portion 12 of the grip portion 11 can project and engage. In this scooping portion 21, only the base 22 is formed in a wave shape in the above-described embodiment. In addition to this, both sides 23 are also formed in a wave shape.

  Thereby, in the manual work tool 10, as shown in FIG. 4, in addition to being able to effectively perform operations such as scooping soft earth and sand in the form of a shovel with a flat tip, the scooping portion 21 can be rotated in the forward and reverse directions to use both sides of the base 22 as corners 25. The tip is shaped like a sword-shaped scoop, and then the ground is broken, and then a hole is excavated. In addition, it is possible to cut the roots of the culm and the like in the ground with less work load by using the wave shape of the side 23 that continues to the corners 25 on both sides.

  Moreover, in this scooping part 21, the valley fold line 21c is formed in the radial direction which goes to the narrow angle (corner part 25) of the base 22 or the upper side 24, and the side 23 from the rotating shaft 31, and it forms in a concave shape as a whole. Therefore, it is formed so that a large amount of earth and sand can be crushed rather than a simple flat plate shape.

  Thus, in this embodiment, while being able to obtain the same effect as the above-mentioned embodiment, the scooping part 21 can be rotated and used in the forward and reverse directions, and the corner part 25 is temporarily damaged. In addition, even when the wave shape of the bottom 22 is worn down, it is possible to work using other healthy portions such as the other corners 25 and the side 23.

  Here, as another aspect of the above-described embodiment, although illustration is omitted, in the above-described embodiment, the relative rotation of the grip portion 11 and the scooping portion 21 is caused by the engagement hole on the scooping portion 21 side. However, the present invention is not limited to this. For example, instead of the protrusion 14, a through hole is opened on the gripping part 11 side. Needless to say, it may be screwed together with the engaging hole 27 of the scooping portion 21.

  Further, not only the size in which the grip portion 11 is supported and used with both hands as in the above-described embodiment, but also the scooping portion 21 is formed in a small size and only the position adjacent to the scooping portion 21 is gripped by hand. Needless to say, it may be a small hand tool having a grip portion of a size, and in this case, the above-mentioned effects can be obtained even with a hand tool working near the hand, and convenience is provided. Well, I can work at hand.

  Although one embodiment of the present invention has been described so far, it is needless to say that the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea.

  10 …… Manual work tool 11 …… Holding part 14 …… Protrusion 15 …… Screw rod 21 …… Screw part 22 …… Bottom side 23 …… Side side 25 …… Square part 26 …… Bag-shaped part 26a …… Fan-shaped end Side 27 ... engagement hole 31 ... rotation axis C ... center line V ... vertical line

Claims (5)

A manual work tool in which a scooping portion of a plate-like member formed so that a work target can be scooped and a gripping portion of a bar-like member formed so that it can be gripped by hand Because
The scooping part and the gripping part are connected to one end side of the gripping part via a pivoting mechanism that rotatably supports the scooping part, and the relative position is fixed by restricting the pivoting. Equipped with a stopper mechanism
The scooping portion has at least two sides that form a turning angle portion at an included angle, and
When the turning mechanism is in an upright posture, at least one of the turning side parts or the turning angle part is in a range of angles that are the lowest position in the extending direction of the gripping part. While formed in a structure that allows rotation,
The stopper mechanism is received by a protruding member in a direction orthogonal to the relative rotation surface of the grip portion and the scooping portion when one of the rotation side portions or the rotation angle portion is located at the lowest position. A hand-operated tool characterized by being formed into a structure that engages and locks in shape.   The scooping portion, when in an upright posture, becomes both sides of the turning corner portion and the turning corner portions on both ends of the turning side portion, which is the bottom of the lowest position. 2. The shape of the present invention is characterized in that one or both of the rotation angle portions are rotated to the lowest position by being formed into a shape having the rotation side portion. The hand tools described in   The turning mechanism restricts further turning after one of the turning sides turns to the lowest position, and conversely, the turning corner turns to the lowest position. The manual work tool according to claim 1, wherein the manual work tool is formed in a structure that restricts further rotation.   The hand according to any one of claims 1 to 3, wherein the scooping portion is formed in a sawtooth shape or a wave shape at least one side of the rotation side continuous to the rotation angle portion. Work tool.   The hand according to any one of claims 1 to 4, wherein the grip portion is formed in a long shape, and a footrest portion for applying a force by placing a foot is provided in the vicinity of the scooping portion. Work tool.

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