JP3218655U - Mowing mower by standing posture - Google Patents

Abstract

The present invention provides a mower with a wheel that allows easy removal of the wheel and enables stable running even by opening and closing the heel.
A grass cutter with a standing posture, wherein the base end portions of a pair of blade bodies 4 and 5 that are pivotably supported by a blade support shaft 6 are used as distal ends of a pair of handles 1 having a predetermined length. And has a wheel 32 held by a holding member 31. The holding member has a wheel holding portion that holds the wheel rotatably, and a blade body attachment portion that is attached to the blade support shaft 6. The blade body attaching portion is formed with an insertion groove whose longitudinal direction is the front-rear direction, and a blade support shaft is attached to the insertion groove. The blade support shaft slides smoothly back and forth according to the opening and closing of the blade body. Moreover, the holding member can be easily detached from the mowing sickle by removing the blade support shaft from the insertion groove.
[Selection] Figure 1

Description

  The present invention relates to a mower that can cut grass such as weeds and turf in a standing position.

  By pivotally supporting the base end of a pair of blades that can be opened and closed via a connecting part at the distal end of a relatively long handle in order to reduce the bending work in a manual mower, A structure for transmitting the opening / closing operation of the handle to the opening / closing operation of the blade body is disclosed.

  Further, in the case of a mowing cutter having a blade at the tip of a relatively long handle, the weight becomes heavy, so that there are some which are provided with wheels to facilitate advancement and facilitate mowing. In Patent Document 1, a detachable support rod is attached to the upper surface or lower surface side of the first and second blade blades so as to extend rearward of the first and second blade blades, and is grounded to the rear end side of the support rod. A structure in which wheels are provided is disclosed. In this structure, the first and second scissors blades can be opened and closed, and at the same time, the wheels can be grounded and moved forward to perform the mowing work.

Japanese Patent No. 2935361

  As in the configuration described in Patent Document 1, there has conventionally been a technique in which a wheel is attached to a mower and a user pushes it forward to facilitate mowing. However, not only the grass that grows along the ground but also the grass that grows on the tree by lifting the grass cutter may be cut. In this case, it is preferable to remove the attached wheel.

  However, a mower with a wheel attached has a structure in which the tip of the handle and the blade are connected, so that the handle and the blade are opened and closed. There was no choice but to attach to the supporting shaft to support. Since the grass cutter with wheels in the prior art is directly attached to the support shaft that supports the blade body, when the wheel is removed, the blade body also comes off, and the wheel cannot be easily removed. Therefore, a wheel that can be easily removed and a holding member thereof have been demanded.

  In addition, the blade of the mowing wheel moves back and forth by opening and closing the hook. When a wheel is directly attached to the support shaft, this movement is directly affected by the wheel, resulting in an unstable situation. Therefore, there has been a demand for a mower that can be stably driven by a wheel even when the reed is opened and closed.

  Accordingly, the present invention provides a wheeled mower that allows easy removal of the wheel and enables stable running even by opening and closing the rod.

  The invention according to claim 1, which achieves the above object, connects and holds the base ends of a pair of blades pivotably supported by a blade support shaft to the tips of a pair of handles having a predetermined length. A cutting mower for standing mowing having a wheel held by a member, wherein the holding member has a wheel holding portion that rotatably holds the wheel, and a blade body attaching portion that is attached to the blade support shaft. The blade body attaching portion is formed with an insertion groove whose longitudinal direction is the front-rear direction, and the blade support shaft is attached to the insertion groove.

  In addition, the blade body mounting portion of the holding member includes a central insertion groove whose tip is open, and a mounting body extended on both sides of the insertion groove. The insertion groove closes the pair of blade bodies. The blade support shaft is preferably formed from the position of the blade support shaft in the opened state to the position of the blade support shaft in the state where the pair of blade bodies are opened.

  The blade support shaft, together with the blade body, supports a sliding piece on the back side of the blade body, and the sliding piece is a grounding portion whose lower surface is hemispherical and an upper surface of the grounding portion A projecting portion that projects in the vicinity of the center in the width direction of the horizontal plane and that contacts the blade body, and a gap is formed between the blade body and the horizontal plane by the projecting portion, and the mounting body of the holding member is formed in the gap. It is preferable to insert and detachably attach.

  The holding member has an open / close guide groove in the left-right direction between the front blade body mounting portion and the rear wheel holding portion, and a lower end of a connection support shaft that connects the base end portion of the blade body to the distal end of the handle. Is preferably slidable in the left-right direction via the opening / closing guide groove of the holding member.

  According to the first aspect of the present invention, the holding member that holds the wheel is attached to the blade body by the insertion groove, so that it not only slides according to the opening and closing of the blade body but also is extracted from the insertion groove. The holding member can be easily detached from the mowing sickle.

  The device according to claim 2 can be easily attached and detached because the tip of the insertion groove is open. In addition, the forward and backward movement of the blade body caused by the opening and closing of the blade body is performed through the insertion groove, so that the forward and backward movement of the blade body is not directly transmitted to the wheel through the insertion groove, so that stable running is achieved. It becomes possible.

  According to the third aspect of the present invention, the holding member can be removed by loosening the blade support shaft that pivotally supports the sliding piece by passing the holding member through the gap between the blade formed by the sliding piece. Can be easily removed from the mowing sickle.

  According to the fourth aspect of the present invention, the guide member has a guide groove corresponding to the opening and closing of the handle, and the holding member is supported to be opened and closed even at a portion where the handle and the blade body are connected through the guide groove. This makes it possible to stably support the holding member.

FIG. 1 is an overall perspective view of a grass cutter showing an embodiment of the present invention. FIG. 2 is an exploded perspective view of the grass cutter shown in FIG. FIG. 3 is an enlarged perspective view of the holding member and the sliding piece of the grass cutter shown in FIG. 4A and 4B show a mounting state of the holding member, in which FIG. 4A is a partially enlarged side view showing a state where the holding member is not inserted, and FIG. 4B is a part showing a state where the holding member is inserted. It is an enlarged side view. FIGS. 5A and 5B are partially enlarged front views of the vicinity of the connecting portion showing the open / close state of the mowing lawn, where FIG. 5A shows a state in which the reed is closed, and FIG. 5B shows a state in which the reed is opened. FIG. 6 is a plan view for explaining the operation of the blade and the sliding piece of the mowing cutter with the handle, the coupling tool and the like removed. FIG. 7 is a partially enlarged side view showing a state in which the heel is folded back.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a mower with a standing posture according to the present invention will be described with reference to the accompanying drawings. With respect to the present embodiment, the form of the mower shown in FIG. 1 will be described as in use, the tip side of the blade edge is the front, the direction of the wheel 32 from the blade edge is the rear, the direction in which the blade bodies 4 and 5 are opened is the side, A description will be given assuming that the ground plane side is downward from 4, 5 and the opposite is upward.

  As shown in FIGS. 1 and 2, the basic form of the mowing shears according to the standing posture of the present embodiment is a pair of handles 1, 1 in which the intersecting portion is pivotally supported by the handle support shaft 2 and a blade support. It is composed of a pair of blade bodies 4 and 5 that are pivotally supported by a shaft 6 and opened and closed to the left and right by holding the grips 3 and 3 of the handle 1 and 1 in a standing posture. And mowing. The two handles 1, 1 intersect with each other in a substantially X shape, and are connected to the blade bodies 4, 5 via connecting tools 7, 7 at the tips of the handles 1, 1.

  The grass cutter has a wheel 32 that is stably and detachably held by a holding member 31. The wheel 32 is arranged behind the position where the handle 1, 1 and the blade body 4, 5 are connected by the base ends of the blade bodies 4, 5 and the couplers 7, 7. 4 and 5 can be attached or detached.

  As shown in FIG. 3, the holding member 31 includes a wheel holding portion 33 that rotatably holds the wheel 32, a blade body attaching portion 34 that is inserted into the blade body side, and a blade body guide portion 35 that is coupled to the distal end side of the handle, 35.

  The wheel holding portion 33 protrudes in a substantially U shape toward the rear end side of the holding member 31, and holds both ends of the axle rotatably from both sides of the wheel 32. Blade body guide portions 35, 35 extending from the front end of the wheel holding portion 33 to both sides are formed, and guide grooves 35a, 35a extending to both sides are formed in the blade body guide portions 35, 35.

  The blade body attaching portion 34 is formed from the vicinity of the center of the blade body guide portions 35, 35 extending to both sides toward the front. The blade body attaching portion 34 is formed with attachment main bodies 34b, 34b extending forward from the blade body guide portions 35, 35, and an insertion groove 34a is formed between the attachment main bodies 34b, 34b. The two mounting bodies 34b and 34b are extended in parallel with each other, and the tips are open without being joined. Therefore, a long insertion groove 34a is formed between the two attachment main bodies 34b and 34b in the front-rear direction. The insertion groove 34a is formed so that the center line in the left-right direction coincides with the center line in the left-right direction of the wheel holding portion 33 and is positioned on a straight line when viewed from the bottom.

  The groove width of the insertion groove 34a, which is the length between the two attachment main bodies 34b, 34b, is set so that the left and right dimensions of the projecting portions 22, 23 of the sliding piece 21 and the diameter of the blade support shaft 6 are substantially the same. In this way, the two attachment main bodies 34b and 34b sandwich the projecting portions 22 and 23 and the blade support shaft 6 so that the blade bodies 4 and 5 formed by the projecting portions 22 and 23 of the slide piece 21 and the slides. The holding member 31 is held by inserting the attachment main bodies 34 b and 34 b into the gap S between the pieces 21.

  Next, the site | part which attaches the blade body attaching part 34 of the holding member 31 is demonstrated. As shown in FIGS. 2 and 3, the slip piece 21 is attached below the blade bodies 4 and 5. The sliding piece 21 has a grounding portion 25 having a hemispherical surface on the lower surface side in the attached state, and the blade body support shaft from the back surface side of the blade bodies 4 and 5 so as to penetrate the center of the grounding portion 25. 6 is inserted. The blade body support shaft 6 fixes the blade bodies 4 and 5 so as to be freely opened and closed through the intersecting positions of the blade bodies 4 and 5. On the surface side of the blade bodies 4 and 5, an adjustment screw 17 is screwed into a bolt at the tip. By rotating the adjusting screw 17, the supported blade support shaft 6 is loosened.

  The grounding portion 25 that is hemispherical on the lower surface side prevents the blades 4 and 5 from directly contacting the ground in a grounded state, and the mowing operation can proceed smoothly even if the blades move in the front-rear direction.

  As shown in FIGS. 3 and 4, the sliding piece 21 has a circular horizontal surface 24 on the upper surface side of the grounding portion 25, and protrusions 22 and 23 protruding upward from the horizontal surface 24 are formed at the center positions on the front side and the rear side. The Specifically, it is a fan-shaped projecting portion along the outer edge of the circular horizontal surface 24, and has a width substantially the same as the width of the insertion groove 34a of the blade body mounting portion 34 as described above. A gap S is formed between the horizontal surface 24 of the sliding piece 21 and the back surfaces of the blade bodies 4 and 5 by the protrusions 22 and 23, and the blade body attaching portion 34 can be inserted and attached to the gap S.

  The blade body attaching portion 34 stably holds the holding member 31 by being inserted into a gap S formed between the blade body 5 positioned below when closed and the projecting portions 22 and 23 of the sliding piece 21. When the holding member 31 is removed, it is possible to remove the blade body support shaft 6 without completely removing the blade body support shaft 6 by removing the blade body attachment portion 34 from the gap S. Moreover, this structure can respond | correspond to the back-and-forth movement by opening and closing of the blade bodies 4 and 5 as mentioned later, and can implement | achieve stable opening and closing.

  Next, a description will be given of the connection structure between the handle 1, 1 and the blades 4, 5 and the guide and attachment by the blade guide parts 35, 35. As shown in FIG. 2, the handles 1, 1 and the blade bodies 4, 5 are attached by connecting tools 7, 7.

  The couplers 7 and 7 are substantially L-shaped consisting of vertical pieces 7a and 7a and horizontal pieces 7b and 7b. The horizontal pieces 7b and 7b are formed from the lower ends of the vertical pieces 7a and 7a to the inside of the handles 1 and 1, That is, it protrudes from one handle 1 toward the other handle 1 side.

  The vertical pieces 7a and 7a of the connecting tools 7 and 7 are in contact with the inner surface of the front end of the handle 1 and 1, and are supported by the rotating shaft 10, and the horizontal pieces 7b and 7b connect the pair of blade bodies 4 and 5, respectively. It is supported by support shafts 11 and 11. As described above, the blade bodies 4 and 5 are pivotally supported by the blade support shaft 6 in the vicinity of the center in the longitudinal direction.

  When fixing the horizontal pieces 7b and 7b of the coupling tools 7 and 7 to the blade bodies 4 and 5, the springs 12 and 12 are inserted into the coupling support shafts 11 and 11, and the vertical distortion generated when the blade bodies 4 and 5 are opened and closed. Is solved. That is, as shown in FIG. 5, the horizontal pieces 7b and 7b are positioned substantially horizontally in the blade bodies 4 and 5 when closed, but the handles 1 and 1 open left and right in the blade bodies 4 and 5 when opened. The horizontal pieces 7b and 7b are also inclined. Even in this tilted state, unless the horizontal pieces 7b, 7b are pressed down, smooth opening and closing becomes difficult, so that pressing by the springs 12, 12 is required. In addition, it is preferable to arrange a plurality of washers 13 and 13 on the blade bodies 4 and 5 to eliminate the difference in height direction from the blade bodies 4 and 5.

  When the handle 1, 1 and the blade body 4, 5 are connected by the connection support shaft 11, 11 via the couplers 7, 7, the connection support shaft 11, 11 is a nut on the back side of the blade body 4, 5. 14 and 14 are fixed. In this fixed state, the tips of the connection support shafts 11 and 11 protruding from the nuts 14 and 14 pass through the guide grooves 35 a and 35 a of the left and right blade body guide portions 35 and 35 of the holding member 31. According to another embodiment, the nuts 14 and 14 may be fixed on the back surfaces of the guide grooves 35a and 35a.

  As shown in FIG. 5, when the user opens and closes the handles 1 and 1, the blade bodies 4 and 5 open and close. At this time, the connection support shafts 11 and 11 supported by the connection tools 7 and 7 are inclined inward according to opening and closing, but are maintained by pressing by the springs 12 and 12 from above. As shown in FIG. 6, since the lower ends of the connection support shafts 11 and 11 are guided by the holding member 31 having the guide grooves 35a and 35a, a more stable and smooth opening and closing is realized. In addition, the opening and closing of the blade bodies 4 and 5 guides the blade support shaft 6 to move backward along the insertion groove 34a of the holding member 31, thereby realizing stable opening and closing. While these blade bodies 4 and 5 are stabilized, the wheel 32 is hold | maintained and the stable driving | running | working is attained.

  As shown in FIG. 6, the back-and-forth movement of the sliding piece 21 by opening and closing the blade bodies 4 and 5 will be described. In FIG. 6, the state in which the blade bodies 4 and 5 are closed is indicated by a solid line, and the state in which the blade bodies 4 and 5 are opened is indicated by a broken line. In the state where the blade bodies 4 and 5 are closed, the sliding piece 21 and the blade body support shaft 6 are located near the tip of the insertion groove 34a of the blade body mounting portion 34, and the protruding portion 23 on the tip side (blade edge side). Is not inserted into the insertion groove 34a.

  On the other hand, in the state where the handles 1 and 1 are opened and the blade bodies 4 and 5 are opened, the base end portions of the blade bodies 4 and 5 are guided by the blade body guide portions 35 and 35 to open sideways. 6 and the sliding piece 21 move rearward along the insertion groove 34a. By opening and closing the blade bodies 4 and 5, the blade body support shaft 6 and the sliding piece 21 move in the front-rear direction. However, since the sliding is enabled by the insertion groove 34a, this movement only becomes smooth. In addition, since the insertion groove 34a absorbs the impact caused by this movement, the movement in the front-rear direction by the wheel 32 is also smooth.

  Moreover, in this embodiment, when the radius of the wheel 32 is enlarged and the blade bodies 4 and 5 are leveled and the wheel 32 is grounded, the sliding piece 21 is not grounded. Further, the lower end portion of the sliding piece 21 is positioned below the tangent line of the wheel 32 passing through the blade edge of the blade body 5. Thus, the user can select the case of traveling with the wheel 32 and the case of grounding the sliding piece 21 by inclining the handle 1 or 1.

  The wheel 32 has a plurality of teeth 32a on the outer peripheral surface thereof at a predetermined interval in the circumferential direction. The teeth 32a are provided with dents opened in the circumferential direction so as to be lined up at right and left at a predetermined interval. Even if the blades 4 and 5 are opened and closed by moving the handles 1 and 1 to the left and right, the blades 4 and 5 Can be kept stable.

  Further, the grass cutter has the handle 1, 1 and the connectors 7, 7 supported by the rotating shafts 10, 10, and the adjusting screw 15 engaged with the rotating shaft 10 is loosened to loosen the rotating shaft 10, The blade bodies 4 and 5 can be rotated up and down with 10 as a fulcrum. By tightening the adjusting screw 15 at a desired rotation position, the handle 1, 1 and the blade bodies 4, 5 can maintain a desired angle. For example, from the state of use in a standing posture in which the handles 1 and 1 shown in FIG. By rotating to the side, the blade bodies 4 and 5 shown in FIG. 7 can be folded back in parallel with the handles 1 and 1.

  By folding in this way, contact with the handles 1 and 1 can be prevented, the blade bodies 4 and 5 can be safely stored, and can be handled safely during storage and transport. Further, in this folded state, only the wheel 32 is positioned below the tips of the handles 1 and 1, and the wheel 32 can be dragged while being rotated.

  DESCRIPTION OF SYMBOLS 1 ... Pattern 4, 5 ... Blade body, 6 ... Blade support shaft, 11 ... Connection support shaft, 21 ... Sliding piece, 22 ... Projection part, 23 ... Projection part, 24 ... Horizontal surface, 25 ... Grounding part, 31 ... Holding Member 32 ... Wheel 33 ... Wheel holding part 34 ... Blade body attaching part 34a ... Insertion groove 34b ... Mounting body 35a ... Guide groove S ... Gap

Claims (4)

A cutting mower for vertical cutting having a wheel held by a holding member, with the base end portions of a pair of blade bodies pivotably supported by a blade support shaft connected to the tips of a pair of handles having a predetermined length Because
The holding member includes a wheel holding portion that rotatably holds a wheel, and a blade body attaching portion that is attached to the blade support shaft,
The cutting blade attaching portion is formed with an insertion groove whose longitudinal direction is the front-rear direction, and the blade support shaft is attached to the insertion groove. The blade attachment portion of the holding member is composed of a central insertion groove whose tip is opened, and an attachment body extended on both sides of the insertion groove,
2. The grass cutter according to claim 1, wherein the insertion groove is formed from a position of the blade support shaft in a state where the pair of blade bodies are closed to a position of the blade support shaft in a state where the pair of blade bodies are opened. . The blade support shaft, along with the blade body, supports the sliding piece on the back side of the blade body,
The sliding piece includes a grounding portion having a hemispherical lower surface, and a projecting portion that projects in the vicinity of the center in the width direction of the horizontal surface that is the upper surface of the grounding portion and contacts the blade body,
A gap is formed between the blade body and the horizontal plane by the protrusion,
The mower according to claim 2, wherein the attachment main body of the holding member is detachably attached by being inserted into the gap. The holding member has an open / close guide groove in the left-right direction between the front blade body attaching portion and the rear wheel holding portion,
The lower end of the connection support shaft that connects the base end portion of the blade body to the distal end of the handle is slidable in the left-right direction via the opening / closing guide groove of the holding member. The grass mower according to any one of 3 above.

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