rake

Abstract

To provide a rake which makes it easy to collect cut grass and reduces the burden on the hands, waist, etc. during work. [Solution] The rake 1 has a main body member 2, a tip member 3, and a claw member 4. There are two claw members 4, which are fixed at the joint J of the tip member 3, and the tip member 3 is fixed to the main body member 2 with two sets of bolts B and nuts N.

Description

[Technical Field]

[0001] This invention relates to a rake for collecting grass clippings after mowing. [Background technology]

[0002] Conventional rakes have many tines to collect the cut grass. However, even though there are many claws, some of them do not function to collect the cut grass, which results in waste, and these useless claws can get caught on the ground, making it difficult to collect the cut grass.

[0003] For example, the invention described in Patent Document 1 discloses a grass collection rake made of steel plate with a comb-like body at the end of the handle for raking up dead grass and leaves, the comb-like body having a roughly flat base and a number of protruding pieces arranged at equal intervals from the base, and the tips of the protruding pieces having an inclined sliding surface that slopes upward from the tip at least from the front to the rear. However, this device is made of steel plate with a certain weight and has 12 protruding pieces that protrude downward from the bottom end of the base, which means that some of the protruding pieces do not function to collect the cut grass, which is wasteful.Furthermore, these useless protruding pieces can get caught on the ground, etc., making it difficult to collect the cut grass.

[0004] Furthermore, the invention described in Patent Document 2 discloses a rake-type weeding tool that has a rake-type scraping part at the tip of the gripping part, and the scraping part is composed of multiple claw members formed by bending wire of the same length into a crank shape, and the multiple claw members are arranged in parallel and fixed with staples to the bottom surface of the gripping part so that one end protrudes from the tip of the gripping part, and the other end of the claw member is driven into and fixed to the bottom surface of the gripping part. However, in this invention, since the mower is composed of multiple scraping claws formed by bending wire into a crank shape, some of the scraping claws do not function to collect the cut grass, which is wasteful, and these useless scraping claws can get caught on the ground, etc., making it difficult to collect the cut grass.

[0005] In addition, the invention described in Patent Document 3 discloses a rake with comb teeth attached to the tip of the handle, a weed-killing body that can rotate on a weed-killing base attached between the comb teeth, the weed-killing body being spring-biased so that it can always abut against the base, and a link lever attached to the weed-killing base. However, even with this invention, there are seven comb teeth, and some of the teeth do not function to collect the cut grass, which is wasteful.Furthermore, these unnecessary comb teeth can get caught on the ground, etc., making it difficult to collect the cut grass, which is a problem. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility Model Registration No. 3215787 [Patent Document 2] Patent No. 5083994 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-136194 Summary of the Invention [Problem to be solved by the invention]

[0007] The purpose of this invention is to provide a rake that makes it easy to collect cut grass and reduces the strain on the hands, waist, etc. during use. [Means for solving the problem]

[0008] After careful consideration of the above-mentioned problems, the inventor came up with a rake that makes it easy to collect cut grass and reduces the strain on the hands and back.

[0009] In other words, the present invention provides a rake for collecting cut grass, which has a main body member, a tip member, and a claw member, and the claw members are made of two pieces and are fixed to the tip member, and the tip member is fixed to the main body member. [Effects of the Invention]

[0010] According to this invention, since the lawn mower has two claw members, there are fewer points of contact with the ground when mowing, which reduces contact resistance with the ground, making it easier to collect the cut grass and reducing the strain on the hands, waist, etc. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a rake according to an embodiment of the present invention; [Figure 2] FIG. 2 is an enlarged perspective view showing the periphery of a claw portion of FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0013] One embodiment of the rake according to the present invention is shown in FIG. In this embodiment, the rake 1 has a main body member 2, a tip member 3, and a claw member 4, and the claw members 4 are two in number and fixed to the tip member 3, which is fixed to the main body member 2.

[0014] The main body member 2 and the tip member 3 are fixed together by inserting the main body member 2 into the tip member 3. If the length from one end of the main body member 2 to the other end of the tip member 3 is L, then from the viewpoint of workability in collecting the cut grass, the length L is set to 1800 mm. Of course, this length L may be changed as appropriate depending on the body shape of the worker, the type of grass being cut, and the purpose of use. For example, from the viewpoint of workability, the length L is preferably 1400 mm or more, more preferably 1600 mm or more, and even more preferably 1800 mm or more. From the viewpoint of weight reduction, the length L is preferably equal to or less than 2200 mm, more preferably equal to or less than 2000 mm, and even more preferably equal to or less than 1800 mm.

[0015] Furthermore, if the length from the tip of the tip member 3 to which the two claw members 4 are fixed to the most bulging part of the two claw members 4 is r (the same as the radius r described below), then from the standpoint of ease of collecting the cut grass, the length r is set to 200 mm. Of course, this length r may be changed as appropriate depending on the type of grass cut and its intended use. For example, from the viewpoint of workability, the length r is preferably 100 mm or more, more preferably 150 mm or more, and even more preferably 200 mm or more. From the viewpoint of weight reduction, the length r is preferably equal to or less than 300 mm, more preferably equal to or less than 250 mm, and even more preferably equal to or less than 200 mm.

[0016] In this embodiment, the total length of the rake 1 is set to 2000 mm (2 m) (L+r) from the viewpoint of workability, but this may be changed as appropriate depending on the type of grass cut and the purpose.

[0017] The shape of the main body member 2 may be a cylindrical shape, a square prism shape, a polygonal prism shape, or the like, and a cylindrical shape is preferable from the viewpoint of workability and ease of gripping by the worker. Furthermore, the diameter of the circumscribing circle of the cross section of the main body member 2 when viewed in cross section is preferably 20 mm or more and 50 mm or less, and from the viewpoint of workability and ease of gripping by the operator, 30 mm is more preferable.

[0018] FIG. 2 is an enlarged perspective view of the periphery of the tip member 3 and the claw members 4 of the rake 1 in this embodiment. The claw member 4 is an arc-shaped portion that is approximately one-fourth of a circle with a radius r (the same as the above-mentioned length r). The thickness of the tip of each of the two claw members 4 is thinner than the thickness at the joint J, and the two claw members 4 are tapered. Here, the thickness of the claw member 4 at the joint J is 10 mm, and the thickness of the tapered tip of the claw member 4 is 5 mm.

[0019] In Figure 2, when viewed from the side, the tapered tips of the two claw members 4 are in contact with the ground, and the angle between the tangent to the claw members 4 at this contact point and the ground is greater than 90 degrees and less than 135 degrees.

[0020] The rake in this embodiment of the invention has two claw members, so there are fewer points of contact with the ground when cutting, which reduces contact resistance with the ground, making it easier to collect the cut grass and reducing the strain on the hands, waist, etc.

[0021] Generally, when collecting cut grass, the cut grass is irregularly tangled with each other, so the present invention can efficiently collect the grass using only two claw members 4, and since there are no unnecessary claw members, the cut grass can be collected even more efficiently.

[0022] In this embodiment, the main body member 2 and the tip member 3 that is arranged to cover the main body member 2 are fixed together by two sets of bolts B and nuts N. The two claw members 4 are fixed to the tip member 3 at a joint J by welding. The method of fixing these two can be appropriately selected from known means in order to ensure strength and reduce weight.

[0023] For example, if the fixing means for the main body member 2 and the tip member 3 is a combination of bolts B and nuts N, it is preferable because the tip member 3 can be replaced. From the viewpoint of secure fixation, it is more preferable to change the number of sets of bolts B and nuts N to 3 to 4 sets, and from the viewpoint of even more secure fixation, it is even more preferable to fix them by welding.

[0024] Alternatively, the tip portion of the main body member 2 may have a screw structure, and the inserted portion of the tip member 3 into which the main body member 2 is inserted may have a threaded hole structure. Furthermore, as will be described later, the main body member 2 and the tip member 3 may be integrally formed as long as the two claw members 4 are configured to be replaceable.

[0025] In the present invention, by using two claw members 4 in this way, there are no unnecessary claw members, and the cut grass can be collected efficiently. Furthermore, at the joint J between the tip member 3 and the two claw members 4, the tip member 3 may be provided with a threaded hole structure, and the claw members 4 may have a screw structure. With such a screw structure, even if the main body member 2 and the tip member 3 are integrally formed, as described above, only the two claw members 4 can be replaced.

[0026] In this case, taking into consideration the working operation of the rake 1 when collecting the cut grass, the screw structure of the front claw member 4 in Figure 2 is set to a clockwise direction, and the threaded hole structure of the tip member 3 is set to a clockwise direction, thereby preventing the joint part J from loosening during work. Similarly, if the thread structure of the rear claw member 4 in FIG. 2 is counterclockwise and the threaded hole structure of the tip member 3 is counterclockwise, loosening of the joint J during work can be prevented.

[0027] As mentioned above, when the main body member 2 and the tip member 3 are integrally formed by welding or the like, it is preferable that the claw member 4 has a replaceable structure such as a screw structure.

[0028] Furthermore, when the tip member 3 and the claw member 4 are constructed as a single unit by welding or the like, the tip member 3 can be fixed to the main body member 2, for example, by using one or more sets of bolts B and nuts N, making it possible to make the tip member 3 that is constructed as a single unit with the claw member 4 replaceable.

[0029] From the viewpoint of workability, the opening angle of the two claw members 4 from the tip member 3 is preferably 30 degrees or more and 150 degrees or less, more preferably 45 degrees or more and 135 degrees or less, and even more preferably 60 degrees or more and 120 degrees or less. Here, the opening angle of the two claw members 4 from the tip member 3 refers to the angle formed by the two claw members 4 when the rake 1 is placed on a flat surface and viewed from above, with the two claw members 4 each opening symmetrically from the tip member 3 (not shown).

[0030] As for the materials of each member, from the viewpoint of weight reduction, it is preferable that the main body member 2 and the tip member 3 are made of aluminum. Also, from the viewpoint of strength, the main body member 2 and the tip member 3 may be made of iron or stainless steel. Furthermore, both may be made of the same material or different materials. [Explanation of symbols]

[0031] 1 rake 2 Main body parts 3 Tip member 4 Claw member

Claims

1. A rake for collecting grass clippings, The rake has a body member, a tip member, and a tine member; The claw members are two in number and are fixed to the tip member, The tip member is fixed to the body member. A rake characterized by:

2. The length from one end of the main body member to the other end of the tip member is L, When the length from the tip of the tip member to which the two claw members are fixed to the most expanded portion of the two claw members is r, The length L is 1400 mm or more and 2200 mm or less, The total length L+r of the rake is 1500 mm or more and 2500 mm or less.

2. The rake of claim 1.

3. The length L is 1800 mm, The total length L+r is 2000 mm 3. The rake of claim 2.

4. The angle between the two claw members and the tip member is 30 degrees or more and 150 degrees or less.

2. The rake of claim 1.

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