a harrow made of elastic tines

Abstract

A harrow made of a harrow tine having elasticity, characterized in that, at the other end of a synthetic resin harrow tine (300) fixed inside a harrow tine fixing case (200) connected to a handle (100), only a plurality of first harrow blades (321) having different bending angles (a) from top to bottom and bending angles (b) curved in left and right directions when viewed in plan are formed at one end of a harrow tine body (310), the first harrow blades (321) are arranged in a plurality of directions and at a plurality of angles, and the first harrow blades (321) are combined in a state of being staggered with respect to each other in such a manner that the distance and the holding angle between the first harrow blades (321) are different from each other.

Description

TECHNICAL FIELD

[0001] The present invention relates to a rake made of elastic tines, which can efficiently collect garbage when cleaning the corner under the fixedly installed seat in the corner of a stairway, a performance site such as a theater, or a sports viewing facility. BACKGROUND

[0002] In order to remove garbage on the ground, a broom is generally used, but it is difficult to remove wet leaves, garbage firmly attached to the ground, and the like using a general broom, and a rake having a curved front end is used for scraping and cleaning.

[0003] The rake is mostly made of synthetic resin material or composed of bundled bamboo tines. Since the tines are maintained at a prescribed interval and fixed in one direction, there is a problem in that it is difficult to scrape and remove small-sized garbage.

[0004] In order to solve the problem, Korean Utility Model Registration No. 20-0464968 (registered on January 21, 2013) "Broom having tine blade" (hereinafter referred to as "Patent Document 1") and Korean Patent Laid-Open Publication (Publication No. 20-2020-0001299, Publication Date: June 18, 2020) "Rake-shaped elastic broom" (hereinafter referred to as "Patent Document 2") are known.

[0005] As shown in FIG. 1, Figure 1 The broom 10 having a tine blade in "Patent Document 1" includes a broom hair 12 combined in a handle 11 and at least one tine blade 13 at the combined side of the broom hair 12, which combines a separate tine blade 13 with an independent broom hair 12 in one handle 11 so that a user uses the tine blade or the broom, but when it is used as a rake, the broom hair reduces the function and effect of collecting large-sized garbage, and when it is used as a broom, the rake hinders the function of the broom.

[0006] The rake-shaped elastic broom in "Patent Document 2" provides a curved broom brush for easy cleaning by providing a rubber connecting part giving elasticity at the middle part of the broom brush and bending it into a rake shape, so that a user can efficiently clean, but since the rubber connecting part is a plate-shaped structure without a space part, the cleaning effect is not ideal.

[0007] PRIOR ART DOCUMENT

[0008] PATENT DOCUMENT

[0009] Patent Document 1: Korean Utility Model Registration No. 20-0464968 (registered on January 21, 2013) "Broom having tine blade"

[0010] Patent Document 2: Korean Utility Model Registration Publication (Publication No.: 20-2020-0001299, Publication Date: June 18, 2020) "Rake-shaped elastic broom" SUMMARY

[0011] PROBLEMS TO BE SOLVED BY THE INVENTION

[0012] The present invention aims to provide a rake with a good cleaning effect, in order to simultaneously exert the effects of a rake and a broom when cleaning the corners of staircases and the corners under the seats of performance venues or sports viewing facilities, and to clean fallen leaves and the like scattered on a lawn without damaging the lawn, the cross section of the synthetic resin tines forming the rake is set to an oblong shape and is stretched in the length direction, a plurality of ribs are formed on the outer circumferential surface of the stretched tines as needed, or a wave shape is continuously formed, the one end portion is bent, and the angle of the bent tine is bent at a plurality of angles, thereby making the intervals between the tines tight and irregular.

[0013] TECHNICAL SCHEME

[0014] In order to achieve the above object, the present invention is characterized in that the cross section of the synthetic resin tines forming the rake is set to an oblong shape and is stretched in the length direction, thereby improving the fatigue strength or fatigue life of the tines.

[0015] Further, a plurality of ribs are formed on the outer circumferential surface of the oblong tines in the length direction of the body to reinforce the strength of the tines.

[0016] Also, the tines are formed with a wave shape at a prescribed interval to further reinforce the strength of the tines.

[0017] Further, in the case of the tine blades of the tines bent from the top down as viewed in plan, the tine blades of the tines are curved in the left-right direction, the directions and angles of the curves are different from each other, thereby making the distances between the tine blades and the holding angles different from each other, and the tine blades are arranged in a plurality of directions and at a plurality of angles, so that cleaning can be efficiently performed regardless of the position (e.g., a planar surface or a corner, etc.) and the kind and size of the garbage.

[0018] EFFECTS OF THE INVENTION

[0019] The present invention has the following effects. The tines are set to an oblong shape, and ribs are formed on the tine body in the length direction as needed, so that the fatigue strength or fatigue life of the tines can be improved.

[0020] Also, the tines can be set to a straight line shape, but the strength of the tines can be further reinforced by forming a wave shape at a prescribed interval in the length direction.

[0021] In addition, in the case of the rake blade of the rake tine which is bent from the top down when viewed from the plan view, the rake blade of the rake tine is curved in the left-right direction, the bending directions and angles are different from each other, and the distances and positions between the rake blades are different from each other, so that the rake can efficiently collect garbage regardless of the type, volume, weight, and the like of the garbage. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a perspective view showing a conventional broom having a rake blade.

[0023] Figure 2 FIG. 2 is a perspective view showing a rake of a first embodiment of the present application.

[0024] Figure 3 FIG. 3 is a plan view showing the rake of the first embodiment of the present application.

[0025] Figure 4 FIG. 4 is a perspective view showing a rake of a second embodiment of the present application.

[0026] Figure 5 FIG. 5 is a plan view showing the rake of the second embodiment of the present application.

[0027] Figure 6 FIG. 6 is a perspective view showing a rake tine of the present application.

[0028] Figure 7 FIG. 7 is an enlarged perspective view showing a state in which a plurality of reinforcing ribs are formed on the outer circumferential surface of the rake tine main body in the lengthwise direction.

[0029] Figure 8 FIG. 8 is a side view showing an example in which the rake tine of the present application is bent at an obtuse angle at the end portion.

[0030] Figure 9 FIG. 9 is a plan view showing an example in which the rake tine of the present application is curved in a plurality of directions at the end portion.

[0031] Figure 10a FIG. 10 is a schematic view showing an example in which the end portion of the rake tine in the conventional rake is arranged at a certain interval.

[0032] Figure 10b FIG. 11 is a schematic view showing an example in which the end portion of the rake tine of the present application is bent at a plurality of angles and curved in an interlaced state.

[0033] EXPLANATION OF REFERENCE NUMERALS

[0034] 100: handle portion

[0035] 200: outer shell for fixing the rake tine

[0036] 300: rake tine

[0037] 310: tine body

[0038] 311: corrugation

[0039] 312: reinforcing rib

[0040] 320: tine blade

[0041] 321: first tine blade

[0042] 322: second tine blade DETAILED DESCRIPTION

[0043] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present application pertains can easily practice the present application.

[0044] The specific structural or functional explanations in the embodiments of the present application are only for explaining the embodiments of the present application, and the embodiments of the present application can be implemented in various ways, and should not be interpreted as being limited to the embodiments described herein.

[0045] In view of the fact that the present application can be variously changed and embodied, a specific embodiment is described in detail herein. However, this is not intended to limit the present application to the specific disclosed embodiment, but should be understood to include all modifications, equivalent techniques, and even alternative techniques included in the idea and technical scope of the present application.

[0046] The terms "first", "second", and the like can be used to describe various structural elements, but the structural elements should not be limited by the terms. The terms can be used to distinguish one structural element from other structural elements.

[0047] The terms used in the present application are only used to explain specific embodiments, and are not intended to limit the present application. Unless the context clearly indicates otherwise, the singular expression includes the plural expression.

[0048] Unless otherwise defined, all terms used herein, including technical terms or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the present application pertains. Terms defined in generally used dictionaries should be interpreted as having the same meaning as those in the context of related technology, and should not be interpreted as having idealized or overly formal meanings unless clearly defined in the present application.

[0049] Hereinafter, in order to help understanding of the present application, preferred embodiments are presented. The following embodiments are provided only to facilitate understanding of the present application, and do not limit the content of the present application by the following embodiments, and thus it should be understood that various modifications can be substituted for them when applying the present application.

[0050] Figure 2An example is shown in perspective view of the rake according to the first embodiment of the present invention. Figure 3 An example is shown as a top view of the rake according to the first embodiment of the present invention. Figure 4 An example is shown in perspective view of the rake according to the second embodiment of the present invention. Figure 5 Example: A top view of the rake according to the second embodiment of the present invention is shown. Figure 6 A perspective view of the rake teeth of the present invention is shown as an example. Figure 7 An enlarged perspective view is shown, for example, of a state in which multiple reinforcing ribs protrude along the length direction on the outer peripheral surface of the rake tooth body of the present invention. Figure 8 This is an example side view showing the rake formed at the end of the rake teeth of the present invention bent at an obtuse angle. Figure 9 The diagram shows a top view example of a rake formed at the end of the rake teeth of the present invention bending in various directions. Figure 10a This is a schematic diagram illustrating the arrangement of the ends of the rake teeth in an existing rake with a certain spacing. Figure 10b The following is a schematic diagram showing the end portion of the rake teeth of the present invention bent at various angles and bent into an interlaced state.

[0051] The present invention relates to a rake in which the other end of the rake tooth 300 is fixed by means of welding or the like inside the rake tooth fixing housing 200 connected to the handle 100. In the rake, the rake tooth body 310 made of synthetic resin has a cross section set as an elongated ellipse and is formed by linear extrusion molding, or is continuously formed with corrugations 311 at a specified interval.

[0052] In addition, such as Figure 7 As shown, multiple reinforcing ribs 312 are continuously protruding along the length direction on the outer peripheral surface of the rake tooth body 310, which can improve the strength of the rake tooth body 310.

[0053] The number of reinforcing ribs 312 is preferably 3 to 8.

[0054] On the other hand, one end of the rake tooth body 310 (opposite to the outer shell for fixing the rake tooth) forms multiple rake tooth blades 320 with different bending angles α from top to bottom and bending angles β from left to right when viewed in a plane. These blades are combined with each other at different distances and holding angles, so that the rake tooth blades 320 are staggered with each other in multiple directions and angles. As a result, the rake tooth blades 320 can efficiently clean the various types of garbage 400 regardless of their location (e.g., uneven ground, corners under seats, dense lawns, etc.) and the type and size of the garbage.

[0055] In the present invention, the reason for stretching the rake tooth body 310 into an elongated ellipse shape is that, compared with the rake tooth formed into a circle, fatigue strength or fatigue life can be improved.

[0056] And, asFigure 2 and Figure 3 As shown, the rake tooth 320 may only have a first rake tooth 321 at the end of the rake tooth, such as... Figure 4 and Figure 5 As shown, a second rake tooth 322 can also be provided together with the first rake tooth 321 at a position with a specified interval from the end of the first rake tooth 321.

[0057] Of course, the third rake tooth (not shown) can be set using the same method.

[0058] Furthermore, when the first rake blade 321 is set, the bending angle α of the end of the first rake blade 321 from top to bottom is different. The first rake blade 321 is set by bending in a variety of obtuse angle ranges from 95° to 175°, so that the effect can be doubled when using the rake blade to scrape or sweep up garbage. Of course, the second rake blade 322 or the third rake blade (not shown) can also be bent and used like the first rake blade 321.

[0059] On the other hand, such as Figure 3 As shown, when viewed from a plane, the first rake tooth 321 is not straight. If the first rake tooth 321 is bent along the left-right direction and its bending angle β is changed, then as shown... Figure 10b As shown, the distance and holding angle of the first rake teeth 321 are combined in a state of being different from each other and interlacing each other. Thus, during cleaning, the rake teeth, which have their own elasticity, effectively fit the bottom surface and gaps due to the elasticity of the interlacing rake teeth, so that they have multiple effects during cleaning. The second rake teeth 322 or the third rake teeth can also be used in the same way when bent.

[0060] As described above, there are many types of methods for forming bending angles α and β on one side of the first rake tooth blade 321 and the second rake tooth blade 322, but the applicant used a method of bending and heating one side of the rake tooth blade using a jig to plastically deform it.

[0061] The invention described herein is made of synthetic resin material, and the rake teeth, which have their own elasticity, have bending angles α and β respectively. When combined, the rake teeth are interlocked, and the space between them can move freely and gently even in very narrow conditions. Therefore, when garbage is located in narrow spaces, corners, severely curved bottom surfaces, or places with narrow gaps, the rake teeth can easily enter, thereby scraping up garbage (damp paper, fallen leaves, etc.) attached to the ground and small garbage such as cigarette butts in corner gaps during cleaning.

[0062] In addition, the rake blades combined with each other in a state of being staggered at various angles can effectively clean the garbage in the gaps of the mowed lawn and the like without damaging the lawn and the artificial turf, and have a good cleaning effect.

[0063] Also, it can be sufficiently expected that the cleaning effect of the rake blades will be more excellent when the second rake blade 322 is provided at a position slightly apart from the first rake blade 321.

[0064] The above-described embodiments of the present application have been described with reference to the drawings, it will be understood by those of ordinary skill in the art that various modifications in form and details can be made therein without changing the technical idea or essential characteristics of the present application.

[0065] Therefore, the above-described embodiments should be understood in all aspects as exemplary, not limiting, the scope of the present application described in the above detailed description is indicated by the scope of the invention, the meaning and scope of the scope of the invention and all modifications or variations derived from the equivalent concept should be interpreted as included in the scope of the present application.

Claims

1. A harrow made of a resilient harrow tine, characterized in that, at the other end portion of a synthetic resin harrow tine (300) fixed inside a harrow tine fixing case (200) connected to a handle portion (100), a plurality of first harrow blades (321) having different bending angles (a) from bending upward and downward and bending angles (b) from bending in left and right directions in plan view are formed at the one end portion of a harrow tine body (310), the first harrow blades (321) are arranged in a plurality of directions and at a plurality of angles so as to be combined in a state of being staggered with respect to each other in such a manner that distances and holding angles between the first harrow blades (321) are different from each other, and the bending angle (a) of the first harrow blade (321) is within an obtuse angle range of 95° to 175°.

2. A harrow made of a resilient harrow tine, characterized in that, at the other end portion of a synthetic resin harrow tine (300) fixed inside a harrow tine fixing case (200) connected to a handle portion (100), a plurality of first harrow blades (321) having different bending angles (a) from bending upward and downward and bending angles (b) from bending in left and right directions in plan view are formed at the one end portion of a harrow tine body (310) formed with corrugations (311) at a predetermined interval, the first harrow blades (321) are arranged in a plurality of directions and at a plurality of angles so as to be combined in a state of being staggered with respect to each other in such a manner that distances and holding angles between the first harrow blades (321) are different from each other, and the bending angle (a) of the first harrow blade (321) is within an obtuse angle range of 95° to 175°. The cross section of the harrow tine body (310) is an oblong ellipse. A plurality of reinforcing ribs (312) are continuously formed at the outer circumferential surface in the length direction of the harrow tine body (310).

3. The harrow made of tines provided with elasticity according to claim 1 or 2, characterized in that, A second harrow blade (322) identical to the first harrow blade (321) is arranged at a position having a predetermined interval from the first harrow blade (321) formed at the one end portion of the harrow tine body (310).

4. The harrow made of the tines provided with elasticity according to claim 1 or 2, characterized in that, The cross section of the harrow tine body (310) is an oblong ellipse.

5. The harrow made of the tines provided with elasticity according to claim 1 or 2, characterized in that, A plurality of reinforcing ribs (312) are continuously formed at the outer circumferential surface in the length direction of the harrow tine body (310). A second harrow blade (322) identical to the first harrow blade (321) is arranged at a position having a predetermined interval from the first harrow blade (321) formed at the one end portion of the harrow tine body (310).

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