JP3212844U - Folding sickle - Google Patents

Abstract

To provide a folding sickle capable of safely opening a blade part by controlling the blade part to be stored and held in one handle in an opening process from a storage state to a use state. SOLUTION: The tip ends of two handles 10 and 20 which are combined to form a gripping part are pivotally supported by pivots provided on the base part of a blade part 30 so as to be shifted vertically and horizontally, and each handle is pivotally supported. Rotating in the direction away from each other about each fulcrum, uniting the handles and storing the blade portions in the storage portions 12 and 22 provided in the handles, and rotating the handles in the opposite directions from the stored state. A rotation stopping means 37 (stopper pin) is provided to fix the blade part in a working state, and when the blade part is opened, the blade edge 31 of the blade part is held on one side until the blade part stops rotation by the rotation stopping means. In order to detachably hold the handle 20, a blade holding means including a compression spring, a ball portion, and a ball portion receiving hole is provided. [Selection] Figure 4

Description

  The present invention relates to a sickle that is used to cut grass, shiba, and the like, and that can be folded so that a blade portion is housed in a handle.

  Conventionally, what is described in Japanese Utility Model Laid-Open No. 63-187810 (Patent Document 1) is known as a folding sickle that can be folded so that the blade portion is housed in a handle. The folding sickle described in the above publication has a fulcrum that pivotally supports each tip of the handle divided in the longitudinal direction at the base of the blade part, and each handle is rotated in one direction around each fulcrum. By combining the handle, the blade portion is stored between the handles, and each handle is rotated from the stored state in the direction opposite to the rotation to the stored state to fix the blade portion in the use state. A folding sickle having a shape in which the base portion of the blade portion is bent at a substantially right angle from the blade portion, the fulcrum is provided at two points on the outside and inside of the bending of the base portion, and the tip of the base portion of the blade portion A rotation stopper is provided in the vicinity.

  By adopting such a configuration, the folding sickle has a position of approximately 45 degrees with respect to the handle when the pivot portions are in two locations and are in contact with each other. When the part is deployed, the stopper means is provided near the tip of the base part of the blade part, so that the blade part can be securely and firmly fixed in a predetermined direction, and the blade part can be safely secured when folded. Can be stored in the handle.

  In the process of folding the folding sickle from the state of use, the conventional folding sickle has one handle with one hand, the other handle with the other hand, and both handles at about 70 to 90 degrees. A general operation is to fold by further closing the both handles while rotating halfway backward or forward from the opened state.

Japanese Utility Model Publication No. 63-187810

  However, in the folding sickle, in the opening process of opening the folding sickle from the stored state to the use state, when the both handles are opened from 70 to 90 degrees halfway backward or forward from the open state. In some cases, the blade portion is in a substantially central portion between the two handles, and when the two handles are rotated halfway backward in the above state, the trajectory of the blade portion is the face of the operator. It may be dangerous to pass nearby. Further, even in the case of a half rotation forward, it is similarly dangerous because the blade portion is rotated while being protruded.

  The present invention has been made in view of such circumstances, and in the opening process in which the folding sickle is released from the stored state to be used, the blade portion is stored and held in one handle as much as possible. It is intended to provide a folding sickle that is controlled so as to be able to keep the blade part open safely.

  The folding sickle according to claim 1 is pivotally supported pivotally on a fulcrum provided by shifting the tip end portions of the two handles, which unite to form a gripping portion, vertically and horizontally to the base portion of the blade portion, Each handle is rotated about the fulcrum in a separating direction so that the handles are combined to store the blade portion in a storage portion provided in each handle, and the storage state of the blade portion Rotation control means is provided for rotating the handle in a direction opposite to the rotation of the handle to the retracted state to fix the blade portion in the use state, and the rotation of the blade portion when the blade portion is opened. A blade holding means for holding the blade portion detachably on the one handle for storing the blade edge of the blade portion until the blade portion is prevented from rotating by the stopping means.

  In the folding sickle according to claim 1, the distal ends of the two handles which are combined to form the gripping portion are pivotally supported on a fulcrum provided by shifting the top and bottom and left and right of the base of the blade portion. The respective handles are rotated about the respective fulcrums in a separating direction so that the respective handles are combined to store the blade portions in storage portions provided in the respective handles, and the blade portions Rotation stop means for rotating the handle from the stored state in the opposite direction to the rotation to the stored state and fixing the blade portion in the use state is provided, and when the blade portion is opened, Since the blade holding means for detachably holding the blade part on the one handle storing the blade edge of the blade part until the blade part is prevented from rotating by the rotation stopping means, In the opening process to release from the stored state to use, the blade part can be Controlled to maintain the state of being housed in one of the handle can be a use state by securely open the blade portion.

  The folding sickle according to claim 2 is the folding sickle according to claim 1, wherein the blade holding means stores an elastic body provided on a sliding surface when the handle and the blade portion are opened and stored. And a pressing body that is urged by the elastic body, and slidably enters a fitting portion provided in the blade portion, and the blade portion is The folding sickle according to claim 1, wherein the folding sickle is detachably held on the one handle.

  In the folding sickle according to claim 2, in addition to the folding sickle according to claim 1, in addition to the folding sickle according to claim 1, the holding means may be the one on the sliding surface when the handle and the blade part are opened and stored. A recess for storing an elastic body provided in the handle, an elastic body stored in the recess, and a pressing body biased by the elastic body, and can be moved forward and backward in a fitting portion provided in the blade portion Since the blade portion is configured to detachably hold onto the one handle, the holding means can be configured with a simple structure.

  According to the invention described in claim 1, the tip end portions of the two handles that are combined to form the gripping portion are pivotally supported on a fulcrum provided so as to be shifted vertically and horizontally on the base portion of the blade portion, The respective handles are rotated about the respective fulcrums in the direction of separation so that the respective handles are combined, and the blade portions are stored in the storage portions provided in the respective patterns, and the blade portions are stored. A rotation stopping means for rotating each handle in a direction opposite to the rotation from the state to the retracted state to fix the blade portion in a use state; and when the blade portion is opened, the rotation of the blade portion is performed. There is a blade holding means for detachably holding the blade portion on the other handle until the blade portion is prevented from rotating by the movement stopping means. In the process, you can keep the blade part housed in one handle as much as possible Thus, the blade portion can be safely opened and put into use.

  According to the invention described in claim 2, in addition to the folding sickle according to claim 1, in addition to the folding sickle according to claim 1, the holding means is configured so that the handle and the blade portion are opened and A fitting provided in the blade part, comprising: a recess for storing an elastic body provided on a sliding surface in the case of storage; an elastic body stored in the recess; and a pressing body biased by the elastic body. Since it is configured to enter the joint part so as to be able to advance and retract, and to hold the blade part detachably on the one handle, the holding means can be configured with a simple structure.

It is a perspective view which shows the folding sickle which concerns on this Embodiment. It is a perspective view which shows the folding sickle which concerns on this Embodiment. It is a perspective view which shows the process of opening a blade part. It is a front view which shows a folded state. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4 and shows a holding mechanism in the storing process. FIG. 5 is a cross-sectional view taken along line BB in FIG. 4 and shows a holding mechanism in an opening process. It is a front view of a blade part. It is the schematic which shows the storing operation | movement of a cutter part, (a) shows the state (opening state) which opened the cutter part, (b) shows the state which opened 90 degree | times, and (c) showed rotation. A state in which the moving pattern is opened 270 degrees is shown, and (d) shows a storage state. It is the schematic which shows the open | release operation | movement of a cutter part, (a) shows the state which accommodated the cutter part, (b) shows the state which opened 90 degree | times, (c) showed the turning pattern 270. (D) shows the open state (use state).

  Hereinafter, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  1 and 2 are perspective views showing a folding sickle according to the present embodiment, and FIG. 3 is a perspective view showing a process of opening the blade part. 4 is a front view showing the folded state, and FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4, showing the holding mechanism in the storing process. FIG. 6 is a cross-sectional view taken along the line BB of FIG. 4 and shows the holding mechanism in the opening process. FIG. 7 is a front view of the blade part.

  In FIG. 1 to FIG. 6, 10 is a basic handle and 20 is a rotating handle. As shown in FIG. 1 and FIG. 2, the base handle 10 and the rotary handle 20 are combined to form a single grip handle, and when stored, as shown in FIG. In addition, the blade part 30 is configured to be accommodated between the base handle 10 and the rotary handle 20.

  The base handle 10 is provided with a through-groove 12 as a space for storing the blade portion when folded from the outer surface side to the other side surface portion from the front end portion to the axial intermediate portion of the base handle 10. It is formed into a strip. Further, a shaft hole 13 through which a support shaft (screw SC) is passed is formed in the distal end portion of the base stem 10. On the other hand, a handle portion 11 having a rib projecting in a circumferential direction from a substantially central portion to the proximal end portion is provided on the proximal end side of the base handle 10. And in the use state shown in FIG.1 and FIG.2, the said basic handle 10 and

  The rotating handle 20 is provided with a bottomed groove 22 having a bottom surface 22a on the outer surface side from the distal end portion to the intermediate portion in the axial direction of the rotating handle 20, and a blade portion when folded. A space for storing the space is formed. Further, a shaft hole 23 through which a support shaft (screw SC) is passed is formed at the tip of the rotary handle 20. On the other hand, a handle portion 21 having a rib projecting in the circumferential direction from the substantially central portion to the proximal end is provided on the proximal end side. 1 and FIG. 2 in the use state shown in FIG. 1 and FIG. 2 at the joint surface of the base handle 10 and the rotary handle 20, where the stopper pin 37, which will be described later, coincides with the stopper as shown in FIG. Stopper pin receiving grooves 15 (the base handle 10 side) and 25 (the turning handle 20 side) for receiving the pins 37 in contact are recessed.

  As shown in FIG. 7, the blade portion 30 is formed so as to be curved as a whole, including a blade tip 31 and a base portion 32 formed so as to bulge outward on the proximal end side of the blade portion 30. A shaft hole 33 that pivotally supports the base stem 10 and a shaft hole 34 that pivotally supports the pivot stem 20 are formed in the base portion 32. The shaft hole 33 is formed on the upper side outside the center of the base portion 32, and the base handle 10 is pivotally supported by screws SC and nuts N. The shaft hole 34 is formed at a position approximately 45 degrees below the shaft hole 33, and the rotating handle 20 is pivotally supported by a screw SC and a nut N. Since the shaft hole 33 and the shaft hole 34 are formed at a position of 45 degrees, even when the rotating handle 20 is rotated 180 degrees, the base handle 10 and the handle 20 are rotated. The hips are in the same position, and the handle hips of both patterns are the same in a use state and a storage state, which will be described later, which is preferable, but is not particularly limited to this angle. Further, a bar-like stopper pin 37 is inserted below the base portion 32.

  In the folding sickle having the above-described configuration, in the process of folding and storing from the usage state, the blade part 30 is held on the base handle 10 until it is stored in the rotating handle 20, and thereby the blade in the folding process. Storing process blade holding mechanism comprising a compression spring SP, a ball portion BL biased by the compression spring SP, and a ball portion receiving hole 35 for detachably holding the ball portion BL. It is comprised so that it may be provided.

  Further, in the opening process in which the folding sickle is released from the housed state to be used, the blade part 30 is opened by controlling the blade part 30 to be kept in the rotating handle 20 as much as possible. An opening process blade holding mechanism including a compression spring SP, a ball portion BL urged by the compression spring SP, and a ball portion receiving hole 36 for detachably holding the ball portion BL. Has been.

  As shown in FIG. 5, the storage process blade holding mechanism has a bottomed compression spring storage hole 14 for storing the compression spring SP immediately below the shaft hole 13 formed in the base shaft portion 10; A compression spring SP is built in the compression spring housing hole 14, and a ball portion BL formed of an iron ball through a spacer is formed in the blade portion, and has a diameter smaller than that of the ball portion BL. 35 is arranged so as to be urged and engaged with 35.

  Then, as shown in FIG. 6, the opening process blade holding mechanism has a bottomed compression spring storage hole 24 for storing the compression spring SP on the side of the shaft hole 23 formed in the rotating portion 20. And a compression spring SP is built in the compression spring housing hole 24, and a ball portion BL formed of an iron ball through a spacer is formed in the blade portion and has a diameter smaller than that of the ball portion BL. It is formed so as to be engaged with the ball receiving hole 36.

  8A and 8B are schematic views showing the storing operation of the blade part, where FIG. 8A shows a state where the blade part is opened (use state), FIG. 8B shows a state where the rotating handle is opened 90 degrees, and (c ) Shows a state in which the rotating handle is opened 270 degrees, (d) shows a stowed state, FIG. 9 is a schematic view showing an opening operation of the cutter part, and (a) shows a state in which the cutter part is stowed. , (B) shows a state where the rotating handle is opened 90 degrees, (c) shows a state where the rotating handle is opened 270 degrees, and (d) shows an opened state (use state).

  In the folding sickle configured as described above, when the folding sickle is folded and stored from the use state, first, as shown in FIG. 8, the basic handle 10 and the rotation are moved from the open state (use state) (FIG. 8A). The handle 20 is held and the rotating handle 20 is opened in the direction of the arrow. In general, an operation of holding the base handle 10 and the turning handle 20 and opening both handles 10 and 20 can be considered. At that time, the base handle 10 is held by the storing process blade holding mechanism provided on the base handle 10 while holding the blade portion 30 at the position of use without being rotated with the rotating handle 20. The rotating handle 20 is opened as shown in the figure without rotating with the rotating handle 20.

  Then, as shown in FIG. 8 (b), the tip of the blade part 30 held by the base handle 10 stops against the bottom surface 22 a of the bottomed groove 22 provided in the rotating handle 20, and the blade The part 30 is housed in the rotary handle 20 and is held in a state where the blade part 30 is held by the rotary handle 20 by the opening process blade holding mechanism, and the blade part 30 is held by the rotary handle 20. It is stored in.

  Then, as shown in FIG. 8 (c), when the rotating handle 20 is further rotated in the storing direction from the state, the blade portion 30 held by the storing process blade holding mechanism becomes the basic handle. 10, the rotary handle 20 is folded in a state where the blade portion 30 is housed in the rotary handle 20, and as shown in FIG. 8D, the basic handle 10 and the rotary handle are folded. The blade portion 30 is accommodated between the blade 20 and the blade 20. In general, in the process from the state of FIG. 8B to the state of FIG. 8C, the base handle 10 and the rotary handle 20 are rotated halfway toward the front side (or the facing side). However, in order to briefly explain the storage process, the storage operation is not performed.

  On the other hand, when the folding sickle is released from the stored state to be used, as shown in FIG. 9, first, the base handle 10 and the rotary handle 20 are moved from the stored state (FIG. 9A). And the rotary handle 20 is opened in the direction of the arrow. In general, an operation of holding the base handle 10 and the turning handle 20 and opening both handles 10 and 20 can be considered. At that time, as shown in FIG. 9 (b), the rotating handle 20 holds the blade portion 30 in the stored state by the storing process blade holding mechanism provided on the rotating handle 20, as shown in FIG. The dynamic pattern 20 opens.

  When the rotating handle 20 is further opened, the stopper pin receiving groove 15 provided in the base handle 10 is formed in the stopper pin 37 provided in the blade portion 30 as shown in FIG. When the blade part 30 is held in use by the storage process blade holding mechanism and is further opened, the blade part 30 is moved as shown in FIG. 9 (d). It is held in the use state position. At this time, the blade portion 30 is configured such that the stopper pin 37 provided on the blade handle 30 is provided with the stopper pin receiving groove 15 provided on the base handle 10 and the stopper pin receiving groove 25 provided on the rotating handle 20. And is held by the above-mentioned storage process blade holding mechanism. In general, in the process from the state of FIG. 9B to the state of FIG. 9C, the base handle 10 and the rotary handle 20 are rotated halfway toward the front side (or the opposite side). In many cases, the opening operation is performed, but in order to briefly explain the opening process, the operation is not performed.

  Since the present invention is configured as described above, in the storing process in which the folding sickle is folded from the use state, the cutter unit 30 is moved to the pivot handle 20 until the cutter unit 30 is stored in the rotating handle 20. 10 so that the blade part 30 is first controlled to be stored quickly in the folding process, and the blade part 30 is rotated halfway backward or forward while being stored in the rotary handle 20. The blade part 30 can be safely stored.

  Further, in the opening process of releasing the storage state from the storage state to the use state, the blade portion 30 is stored in the rotating handle 20 so that the blade portion 30 can be stored in the rotating handle 20 as much as possible. The blade portion 30 can be opened and put into use, and when the blade portion 30 is released from the handle portions 10 and 20, the state in which the blade portion is accommodated as much as possible is maintained. Since it opens, it can be opened safely.

  Although the stopper pin 37 is used as the rotation stopping means of the blade part 30, a spring constant is applied to the compression spring SP of the storing process blade holding mechanism provided in the base handle 10 and the rotation handle. It is good also as the said rotation stop means by making it larger than the spring constant of the said compression spring SP of the said opening process blade holding mechanism provided in 20. As shown in FIG. In this case, it is not necessary to provide the stopper pin 37 separately, and the structure becomes simple.

10 basic shaft handle 11 handle 12 through groove 13 shaft hole 14 compression spring housing hole 15 pin receiving groove

20 Rotating handle 21 Handle 22 Bottomed groove 22a Groove bottom 23 Shaft hole 24 Compression spring storage hole 25 Stopper pin receiving groove


30 Cutter 31 Blade edge 32 Base 33 Base handle shaft hole 34 Rotating handle shaft hole 35 Ball receiving hole (base handle)
36 ball receiving hole (rotating handle)
37 Stopper pin

SC Screw N Nut SP Compression spring BL Ball part (steel ball)

Claims (2)

The tip of the two handles forming a gripping part are pivotally supported on a fulcrum provided by shifting the top and bottom and left and right of the base of the blade part, and each handle is centered on each fulcrum. , Rotate in the direction of separation, unite the handles, and store the blade portion in a storage portion provided in each handle,
Rotation stopping means is provided for rotating each handle from the stored state of the blade part in a direction opposite to the rotation to the stored state to fix the blade part in a use state,
When the blade portion is opened, the blade portion can be freely engaged with and disengaged from the one handle for storing the blade edge of the blade portion until the blade portion is prevented from rotating by the rotation stopping means of the blade portion. A folding sickle comprising a blade holding means for holding the blade. The blade holding means is housed inside the recess, a recess for housing an elastic body provided on the one handle on a sliding surface when the one handle and the blade portion are opened and housed. An elastic body and a pressing body biased by the elastic body, and plunged into and retracted into a fitting portion provided in the blade portion to hold the blade portion detachably on the one handle. The folding sickle according to claim 1, wherein:

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