Broom and manufacturing method of broom

Abstract

To provide a broom that can be configured by combining two kinds of ears and which can make an abrasion speed of an ear part nearly the same in the central part and the end part, and to provide a manufacturing method of the broom.SOLUTION: A broom 1 includes a rod-like handle part 2 and an ear part 3 fixed to the tip of the handle part 2. In the ear part 3, a plurality of ear bundles 30,30... is aligned and connected to each other. Each of the ear bundles 30 includes a first ear material group 31 formed of a plurality of first ear materials 32,32..., and a second ear material group 33 formed of a plurality of second ear materials 34,34... arranged around the first ear material group 31. Chemical fiber is used as the first ear material 32, and natural fiber is used as the second ear material 34.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a broom and a method for making a broom. [Background technology]

[0002] BACKGROUND ART Conventionally, a technique for constructing a broom by combining hard and soft brush materials is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 62-192354 Summary of the Invention [Problem to be solved by the invention]

[0004] The brooms according to the above-mentioned prior art have different ratios of hard and soft bristles at the ends and the center of the broom. In other words, the center of the broom has a higher ratio of soft bristles than the ends, which causes the broom to wear out faster.

[0005] The present invention was made in consideration of the above-mentioned situation, and the problem that the present invention aims to solve is to provide a broom and a manufacturing method thereof that is constructed by combining two types of bristles and that makes it possible to make the wear rate of the bristles at the center and the ends approximately the same. [Means for solving the problem]

[0006] Below, we will explain means for solving the above problems.

[0007] The broom of the present invention is a broom comprising a rod-shaped handle and bristles fixed to the tip of the handle, wherein the bristles are made up of a plurality of bundles of bristles arranged and connected to each other, each bundle of bristles comprising a first group of bristles formed by a plurality of first bristles and a second group of bristles formed by a plurality of second bristles arranged around the first group of bristles, wherein synthetic fiber is used for the first bristles and natural fiber is used for the second bristles.

[0008] In addition, in the broom, it is preferable that the base ends of the first group of ears in each bundle are connected to each other by welding.

[0009] In addition, in the broom, it is preferable that the tip of the second group of ears is formed to protrude further than the tip of the first group of ears.

[0010] In the broom, it is preferable that the tip of the first brush tip be tapered.

[0011] In addition, the method for manufacturing a broom according to the present invention comprises a first forming step of forming a first group of bristles using a plurality of first bristles made of synthetic fiber, a second forming step of forming a second group of bristles using a plurality of second bristles made of natural fiber around the first group of bristles and binding them together to form a bundle of bristles, and a fixing step of fixing the bristles, which are made up of a plurality of the bundles of bristles, to the tip of a rod-shaped handle.

[0012] In addition, in the method for manufacturing a broom, it is preferable that during the first forming step, the first ears are connected to each other by welding at the base ends of the first ear group.

[0013] In addition, in the method for manufacturing a broom, after the fixing step, it is preferable to adjust the tip of the second group of ears so that it protrudes more than the tip of the first group of ears. [Effects of the Invention]

[0014] According to the broom and manufacturing method of the present invention, the broom is constructed by combining two types of bristles, and it is possible to make the wear rate of the bristles at the center and ends approximately the same. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a front view showing a broom according to an embodiment. [Figure 2] Flow diagram showing the broom manufacturing process. [Figure 3] (a) is a front view showing the first group of ears, and (b) is a front view showing the ear bundle. [Figure 4] Cross section along line AA in Figure 3(b). [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] First, a broom 1 according to one embodiment of the present invention will be described using Figure 1. Broom 1 according to this embodiment is primarily used indoors to clean tatami mats, floors, etc. Broom 1 comprises a rod-shaped handle 2 and bristles 3 fixed to the tip of handle 2. Handle 2 comprises a rod-shaped handle 21 and a cylindrical fixing part 22 formed at the tip of handle 21 and opening downwards.

[0017] The bristles 3 of the broom 1 are made up of a plurality of (four in this embodiment) bundles of bristles 30 that are lined up and connected to one another. In detail, as shown in Figure 5, the base ends of the four bundles of bristles 30 are inserted into the fixing portion 22 of the handle 2, and the four bundles of bristles 30 are connected to one another via a fixing device such as a stapler.

[0018] As shown in Figure 2, the manufacturing method of broom 1 according to this embodiment includes a first forming step S01, a second forming step S02, a fixing step S03, and an adjusting step S04. As shown in Figure 3(a), first forming step S01 is a step of forming a first group of ears 31 from a plurality of first ears 32 made of synthetic fiber. Second forming step S02 is a step of forming a second group of ears 33 from a plurality of second ears 34 made of natural fiber around first group of ears 31 and binding them together to form a bundle of ears 30.

[0019] As shown in Figure 5, the fixing step S03 is a step of fixing the bristles 3, which are made up of four bundles of bristles 30, at the fixing part 22 on the handle 2 in a flat shape that is long in the width direction. The adjusting step S04 is a step of adjusting the length of the bristles 3 by cutting the tips of the bristles 3 with a cutter (see Figure 1). In this embodiment, as shown in Figure 1, the bristles 3 are cut in a direction that is oblique to the perpendicular direction of the handle 2 to improve the usability of the broom 1.

[0020] As shown in Figures 3(a) and 3(b) and 4, a first group of ears 31 formed by a plurality of first ears 32 is arranged in the center of each bundle 30. In this embodiment, polyethylene terephthalate fiber, which is a chemical fiber, is used for the first ears 32. The material of the first ears 32 is not limited to this embodiment, and other resin-made chemical fibers can also be used.

[0021] As shown in Figures 3(a) and 4, in the first group of ears 31, the base ends 32a of the first ears 32 are connected to one another by welding, which makes it possible to easily secure the first ears 32, which would otherwise be difficult to secure due to slippage between them.

[0022] 3(a), the tips 32b of the first brushes 32 are tapered, which allows the tips 32b of the first brushes 32 to fit into the joints of the tatami mats without damaging the surface of the tatami mats when using the broom 1.

[0023] As shown in Figures 3(a) and 3(b) and 4, a second group of ears 33 formed by a plurality of second ears 34 is arranged around the first group of ears 31. In this case, as shown in Figure 3(b), the second ears 34 are sufficiently longer than the first ears 32. In this embodiment, broom grass, which is a natural fiber, is used for the second ears 34.

[0024] The base end of the bundle 30 is bound with a string-like binding material 35. In this embodiment, by arranging a second group of ears 33 made of non-slip natural fibers on the outside of the bundle 30, the ears can be bound more firmly with the binding material 35. In other words, by arranging natural fibers, which have a greater frictional force with the binding material 35, on the outside of the bundle 30, the shape of the bundle 30 can be stabilized.

[0025] In the bundle of bristles 30 of the broom 1 according to this embodiment, the tip of the second group of bristles 33 is formed to protrude further than the tip of the first group of bristles 31. Specifically, when the tips of the bristles 3 are cut with a cutter in the adjustment step S04, the second group of bristles 33 is cut slightly further towards the tip than the first group of bristles 31. This makes it possible to continue using the broom 1 even if the second group of bristles 33, which is made of natural fiber that wears out faster than synthetic fiber, wears out.

[0026] As described above, the broom 1 according to this embodiment is constructed using a plurality of bundles 30, each of which has a first group of synthetic fiber bristles 31 and a second group of natural fiber bristles 33 arranged around it. In this way, the broom 1 has bristles 3 that are constructed by combining two types of bristles: the first group of synthetic fiber bristles 32 and the second group of natural fiber bristles 34.

[0027] Furthermore, in the broom 1 according to this embodiment, by arranging multiple bundles of bristles 30 side by side, the ratio of the first group of bristles 31 to the second group of bristles 33 does not change between the ends and the center of the bristles 3, so the wear rate of the bristles 3 can be made to be roughly the same in the center and ends. In other words, it is possible to make the degree of wear of the bristles 3 of the broom 1 roughly the same across the width. [Explanation of symbols]

[0028] 1 broom 2 handle 3. Spike 21 Handle 22 Fixed part 30. Bundle of ears 31. First group of ears 32 First ear material 32a Base end 32b Tip 33 Second ear group 34 Second ear material 35 Binding material

Claims

1. A broom comprising a rod-shaped handle and a brush fixed to the tip of the handle, The ear portion is formed by arranging a plurality of ear bundles and connecting them to each other, Each of the bundles comprises a first group of ears formed by a plurality of first ears, and a second group of ears formed by a plurality of second ears arranged around the first group of ears, Chemical fiber is used as the first ear material, A broom in which natural fibers are used as the second brush material.

2. The broom according to claim 1 , wherein in each bundle, the base ends of the first group of bristles are connected to each other by welding.

3. The broom according to claim 2 , wherein the tip of the second group of ears is formed to protrude further than the tip of the first group of ears.

4. The broom according to claim 3 , wherein the tip of the first brush head is tapered.

5. a first forming step of forming a first group of ears using a plurality of first ears made of chemical fiber; a second forming step of forming a second group of ears made of a plurality of second ears using natural fibers around the first group of ears and binding the second group of ears to form a bundle; and a fixing step of fixing the bristles, each of which has a plurality of bundles of bristles arranged, to the tip of a rod-shaped handle.

6. 6. A method for manufacturing a broom according to claim 5, wherein during the first forming step, the first ears are connected to each other by welding at the base end of the first group of ears.

7. 7. The method for manufacturing a broom according to claim 6, further comprising an adjusting step of adjusting, after the fixing step, the tips of the second group of ears so that they protrude more than the tips of the first group of ears.

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