Comb brush and adhesive coating kit

By incorporating elongated holes and cross ribs into the blade of the comb-tooth trowel, the problems of insufficient blade strength and flexibility are solved, achieving appropriate coating effects and operational safety while reducing plastic waste.

CN113389361BActive Publication Date: 2025-10-31TOYOPOLYMER CO LTD
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Patent Information

Application Number
CN202110266801.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-03-13
Filing Date
2021-03-11
Publication Date
2025-10-31
Estimated Expiration
2041-03-11

AI Technical Summary

Technical Problem

Existing toothed trowels have holes in the blade section, which reduces their strength and makes it impossible to balance the strength and flexibility of the adhesive coating.

Method used

Design a toothed spatula with a blade comprising an elongated hole and multiple ribs arranged in a direction intersecting the elongated hole to improve the strength and flexibility of the blade, and installed by inserting a container handle into the elongated hole.

Benefits of technology

It achieves appropriate strength and flexibility when applying adhesive, prevents trowel loss, improves work efficiency, reduces plastic waste, and avoids uneven adhesive application.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a toothed trowel having the appropriate strength and flexibility required for applying adhesives and capable of achieving proper application. The toothed trowel for applying adhesives includes: a blade having a comb-like shape at one end; and a handle located at the other end of the blade for the operator to grip. The blade includes: an elongated orifice for inserting a handle disposed on the upper surface of a container storing the adhesive, extending horizontally to one end of the blade; and a plurality of ribs arranged in a direction intersecting the extending direction of the elongated orifice.
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Description

Technical Field

[0001] The present invention relates to a toothed trowel used in applying adhesives and an adhesive application kit including the toothed trowel. Background Technology

[0002] Until now, when bonding flooring materials to a substrate, an adhesive is applied using a trowel. As for trowels used for applying adhesive, it is generally known that such toothed trowels are made of strong materials such as metal, and their front end (the coating portion) is in the shape of a comb. Regarding the disclosed toothed trowel, it has a hole for inserting a handle provided on the upper surface of the adhesive container (can) (Patent Document 1). By using the trowel disclosed in Patent Document 1, the adhesive container (can) and the trowel can be moved as a single unit. Furthermore, when not using the trowel, by attaching it to the adhesive container (can), the trowel can be prevented from being lost.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Design Registration No. 1586319 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, in the trowel disclosed in Patent Document 1, the strength of the blade is reduced because holes are provided in the main body portion (hereinafter referred to as the blade portion) with comb teeth. This can be compensated for by, for example, using a hard metal in the blade portion, increasing the thickness of the blade portion, or shortening the vertical length of the blade portion. However, if these methods are used to increase the strength of the blade portion, the flexibility of the blade portion is lost, resulting in the problem of uneven application of adhesive.

[0008] The purpose of this disclosure is to provide a toothed trowel that includes an elongated hole in a container, i.e., a can, for mounting the toothed trowel to an adhesive or the like, and has suitable strength and flexibility for applying the adhesive or the like.

[0009] The means used to solve the problem

[0010] To achieve the above objectives, the toothed trowel of the present invention is a toothed trowel for applying adhesive, comprising: a blade having a comb-like shape at one end; and a handle located at the other end of the blade for the operator to hold, the blade comprising: an elongated hole for inserting a handle disposed on the upper surface of a container storing adhesive, extending horizontally to one end of the blade; and a plurality of ribs arranged in a direction intersecting the extending direction of the elongated hole.

[0011] Invention Effects

[0012] The comb spatula provided according to the present invention includes an elongated hole for mounting the comb spatula on an adhesive can, has the appropriate strength and flexibility required for applying adhesive, and can achieve proper coating. Attached Figure Description

[0013] Figure 1 A front view of the comb toother of the first embodiment is shown.

[0014] Figure 2 A top view shows an embodiment of mounting a toothed spatula on a can containing adhesive.

[0015] Figure 3 It shows Figure 1 A cross-sectional view of the AA section of the comb-tooth trowel.

[0016] Figure 4 A table showing the test results of flexibility, front-end warping, and strength caused by the difference in rib thickness in the first embodiment is presented.

[0017] Figure 5 A perspective view of adhesive coating kit 1 is shown.

[0018] Figure 6 An inside view of the container cap 20 for the adhesive coating kit 1 is shown.

[0019] Figure 7 A front view of the comb toother of the second embodiment is shown.

[0020] Figure 8 A table showing the test results of flexibility, front-end warping, and strength caused by the difference in rib thickness in the second embodiment is presented.

[0021] Figure 9 A front view of the comb toother of the third embodiment is shown.

[0022] Figure 10 A table showing the test results of flexibility, front end warping, and strength caused by the difference in rib thickness in the third embodiment is presented.

[0023] Figure 11 A front view of the comb toother of the fourth embodiment is shown.

[0024] Figure 12 A table showing the test results of flexibility, front-end warping, and strength caused by the difference in rib thickness in the fourth embodiment is presented.

[0025] Figure 13 A front view of the comb toother of the fifth embodiment is shown.

[0026] Figure 14 A table showing the test results of flexibility, front-end warping, and strength caused by the difference in rib thickness in the fifth embodiment is presented.

[0027] Figure 15 A front view of the comb toother of the sixth embodiment is shown.

[0028] Figure 16 A rear view of the comb toother of the sixth embodiment is shown.

[0029] Figure 17 A top view of the comb toother of the sixth embodiment is shown.

[0030] Figure 18 A bottom view of the comb toother of the sixth embodiment is shown.

[0031] Figure 19 A right view of the comb toother of the sixth embodiment is shown.

[0032] Figure 20 A perspective view of the comb toother of the sixth embodiment is shown.

[0033] Figure 21 A table showing the test results of flexibility, front-end warping, and strength caused by the difference in rib thickness in the sixth embodiment is presented.

[0034] Figure 22 A front view of a comb-tooth brush according to another embodiment of the present invention is shown.

[0035] Figure 23 A front view of a comb-tooth brush according to another embodiment of the present invention is shown.

[0036] Figure 24 A front view of a comb-tooth brush according to another embodiment of the present invention is shown.

[0037] Figure 25 A front view of a comb-tooth brush according to another embodiment of the present invention is shown.

[0038] Explanation of reference numerals in the attached figures

[0039] 1…Adhesive coating kit; 3…Handle; 4…Joint; 5…Comb teeth; 6…Elongated hole; 10…Can; 11…Handle; 20…Container lid; 22…Clamping part; 100…Comb toothed trowel; 102…Blade; 121-124…Rib; 200…Comb toothed trowel; 221-226…Rib; 300…Comb toothed trowel; 321-325…Rib; 400…Comb toothed trowel; 421-425…Rib; 500…Comb toothed trowel; 521-525…Rib; 600…Comb toothed trowel; 621-625…Rib Detailed Implementation Plan

[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Identical or corresponding parts in the drawings are indicated by the same reference numerals and will not be described again. The drawings differ from actual dimensions and do not accurately represent the proportions of the actual dimensions between the constituent parts. Furthermore, in this specification, metals such as electro-galvanized steel sheet or melt-galvanized steel sheet are used as materials for the comb-tooth trowel described later. These steel sheets are preferred as materials for the comb-tooth trowel, but this is not a particular limitation. That is, the material used for the comb-tooth trowel is not limited to these, as long as it has the desired degree of flexibility and strength when coated with adhesives, etc. For example, resins such as PE (polyethylene) or PP (polypropylene) can also be used as materials for the comb-tooth trowel.

[0041] Figure 1 A front view of the comb-tooth trowel 100 according to the first embodiment is shown. Figure 1 As shown, the toothed spatula 100 includes a blade 102, a handle 3, and a connecting part 4. The toothed spatula 100 extends from one end of the blade 102 ( Figure 1 From the lower end of the middle part to one end of the hand-held part 3 ( Figure 1 The length of the upper part is approximately 140mm.

[0042] The blade 102 is the main body of the comb-tooth grater 100, including one end ( Figure 1 The lower end of the comb portion 5 is a comb-shaped part. The comb portion 5 extends horizontally in the direction of one end of the blade portion 102. Figure 1 It has a length of approximately 165 mm in the horizontal direction. In the process of applying adhesive, the operator first applies adhesive to the comb tooth 5, and then applies adhesive to the object (substrate, etc.). Alternatively, adhesive is sprinkled on the substrate, etc., and then the comb tooth 5 of the comb trowel 100 is used to smooth the adhesive.

[0043] The cutting edge 102 includes an elongated hole 6 extending horizontally at one end of the cutting edge 102. For example... Figure 2 As shown, the elongated hole 6 is a through hole into which the handle 11, which is provided on the upper surface of the adhesive container, i.e., the can 10, is inserted. The elongated hole 6 has a length of approximately 92 mm in the direction extending horizontally to one end of the blade 102. The can 10 can be an 18-liter square can. Therefore, the elongated hole 6 has a width and length through which the handle 11 can pass. By inserting the handle 11 of the can 10 into the elongated hole 6 and attaching the toothed trowel 100 to the can 10, the can 10 and the toothed trowel 100 can be moved together. Furthermore, when the toothed trowel 100 is not in use, it can be prevented from being lost by attaching it to the can 10.

[0044] The elongated hole 6 is positioned closer to the handle 3 than the front end of the comb teeth 5. For example, the lower end of the elongated hole 6 is located approximately 76 mm from the front end of the comb teeth 5. By positioning the elongated hole 6 closer to the handle 3 than the front end of the comb teeth 5, adhesive will not leak from the elongated hole 6 during adhesive application, ensuring even application. Furthermore, the upper end of the elongated hole 6 is located 58 mm from the end of the handle 3. Therefore, the position of the elongated hole 6 will not obstruct the work when holding the handle 3 to apply adhesive.

[0045] In addition, such as Figure 1 As shown, the cutting edge 102 includes four ribs 121-124 extending in a direction intersecting the extending direction of the elongated hole 6. In the first embodiment, the ribs 121-124 are respectively provided at approximately equal intervals (approximately 33 mm) in a direction horizontal to one end of the cutting edge 102. Furthermore, the lower ends of the ribs 121-124 are located approximately 67 mm from the front end of the comb tooth portion 5. The ribs 121-124 all have the same shape, with a length of approximately 40 mm in the extending direction and a width (length in the direction perpendicular to the extending direction of the rib) of approximately 12 mm. The ribs 121 and 124 on both sides do not intersect with the elongated hole 6. That is, the ribs 121 and 124 are positioned further outward relative to the elongated hole 6. On the other hand, the two ribs 122 and 123 present on the inner side are divided into upper and lower parts by the elongated hole 6. Furthermore, in Figure 1 In the shown front view, ribs 121-124 are convex ribs formed near the front. By setting ribs 121-124 in this way, the strength of the blade 102 can be increased in the comb-tooth brush 100 with the elongated hole 6. Furthermore, although an example is shown where ribs 121-124 are arranged at approximately equal intervals (approximately 33 mm) in a direction horizontal to one end of the blade 102, the interval between ribs is not limited to this, and a non-equal interval structure is also possible. Additionally, although an example is shown where the lower ends of all ribs are located approximately 67 mm from the front end of the comb-tooth 5, the position of the ribs is not limited to this, and a structure with different distances from the front end of the comb-tooth 5 is also possible.

[0046] like Figure 1 As shown, the comb tooth portion 5 has a uniform comb tooth shape at one end of the blade portion 102. By forming the comb teeth with appropriate shape and size, an appropriate amount of adhesive can be applied. For example, if the spacing between the comb teeth is too large, problems such as insufficient adhesive strength may occur because the necessary amount of adhesive cannot be ensured. In addition, if the spacing between the comb teeth is narrow or the height of the comb teeth is too high, excessive application of adhesive will consume unnecessary adhesive.

[0047] Figure 3 It shows Figure 1A cross-sectional view of the comb tooth 100 at the dashed line AA. Figure 3 In the middle, the left side shows the front of the comb-tooth grater 100. (As shown) Figure 3 As shown, a piece of metal extending from the blade 102 is folded back and joined to the joint 4 to form the handle 3. This construction prevents the handle 3 from separating from the blade 102. Furthermore, the folded-back portion of the metal in the handle 3 has a gently curving shape. By shaping the handle 3 in this way, work efficiency is improved when the operator holds the handle 3, which has an easy-to-grip shape. Additionally, normally, due to the load applied when using a trowel, the joint between the blade 102 and the handle 3 may be damaged due to metal fatigue, etc. As shown in the first embodiment, the strength of the joint 4 is increased because it consists of two metal plates. The two metal plates of the joint 4 are joined together, for example, by welding at multiple points. The number of welds in the joint 4 is arbitrary. The welding points are not shown in the illustration.

[0048] In addition, such as Figure 3 As shown, ribs 121-124 have a predetermined thickness. In the first embodiment, ribs 121-124 are convex structures facing the front direction. Here, as... Figure 4 As shown, the inventors developed several embodiments with ribs 121-124 of different thicknesses and conducted tests on "flexibility," "front warpage," "strength," and "coating operability." "Flexibility" indicates whether the comb teeth 5 have adequate flexibility to follow the unevenness of the coated floor surface when applying adhesive. "Front warpage" concerns whether the blade 102 of the comb trowel 100 is skewed. "Strength" indicates whether the comb trowel 100 has the strength to prevent excessive deformation when applying adhesive. "Coating operability" indicates the operability of uniformly applying adhesive to the coated surface, i.e., its functionality as an adhesive application tool. Test results are expressed using ◎, 〇, △, and ×, representing excellent, good, acceptable, and poor judgment levels, respectively. Figure 4 As shown, in all embodiments 1-1, 1-2, and 1-3 where the rib thickness was set to 1 mm, 2 mm, and 3 mm, all items regarding "flexibility," "front-end warpage," "strength," and "coating operability" received evaluations above the permissible range. Furthermore, in all embodiments 1-1, 1-2, and 1-3, "front-end warpage" received a "very good" evaluation. Additionally, in embodiment 1-2 where the thickness of ribs 121-124 was 2 mm, both "flexibility" and "front-end warpage" received "very good" evaluations.

[0049] Figure 5 A perspective view of an adhesive application kit 1 including a toothed trowel 100 according to a first embodiment is shown. The toothed trowel 100 is shown as... Figure 2 The adhesive application kit 1 is formed by mounting it on the can 10 and further covering it with the container cap 20. The adhesive application kit 1 constructed in this way allows multiple adhesive application kits 1 to be stacked vertically. Furthermore, by using the container cap 20, for example when moving the adhesive application kit 1, it is possible to prevent the comb trowel 100 mounted on the can 10 from separating from the can 10 and being lost. Moreover, after applying the adhesive, by using the container cap 20, the adhesive application kit 1 can be moved without contacting the adhesive adhering to the comb trowel 100.

[0050] Figure 6 An internal perspective view of the container lid 20 is shown. The container lid 20 is made by bending, for example, corrugated cardboard. The hole 21 in the container lid 20 is for setting... Figure 5 The can 10 shown has a through hole on its upper surface into which the handle 11 is inserted. When the container lid 20 is installed on the can 10, the operator removes the handle 11 from the can 10 through this hole and uses the handle 11 to move the can 10. Additionally, as shown... Figure 6 As shown, a clamping portion 22 is included on one or both opposite sides of the inner side of the container lid 20. The clamping portion 22 is formed to fold inward from the side of the container lid 20 and has an angle relative to the inner side of the side of the container lid 20. Therefore, when the container lid 20 is placed on the can 10, the end of the clamping portion 22 contacts the lower side of the edge of the upper surface of the can 10, which can prevent the container lid 20 from easily falling off the can 10. In addition, the material of the container lid 20 is not limited to corrugated cardboard, and it can also be made of materials such as plastic.

[0051] Currently, when moving adhesive containers and toothed trowels, the common method involves placing the toothed trowel on the upper surface of the adhesive container, attaching a container lid such as a corrugated cardboard lid from above, and securing it with PP tape to prevent the adhesive container, toothed trowel, and container lid from falling off. However, using this method carries the risk of the PP tape breaking and the products (adhesive container, toothed trowel, and container lid) falling off as the adhesive container moves. Furthermore, using PP tape generates PP tape plastic waste after removing the container lid from the adhesive container. In contrast, the adhesive coating kit of the first embodiment described above allows for the installation of the adhesive container, toothed trowel, and container lid without the use of PP tape. Therefore, the adhesive coating kit according to the first embodiment can prevent the product from falling due to PP tape breakage, ensuring operational safety. Additionally, eliminating the use of PP tape is expected to reduce plastic waste.

[0052] Furthermore, regarding methods for attaching a toothed trowel to an adhesive container, one known method is to use tape to attach the trowel to the bottom of the adhesive container. However, when using this method to attach the trowel to the adhesive container, there is a problem of tape residue adhering to the trowel. Additionally, when the adhesive container is placed on the floor with the trowel attached to its bottom, the container may tilt due to the trowel at the bottom. This results in packaging shape problems such as instability at the bottom of the adhesive container. In contrast, the trowel in the first embodiment described above is installed by inserting the handle of the adhesive container into an elongated hole in the trowel. This prevents the aforementioned problems that occur when attaching the trowel to the bottom of the adhesive container.

[0053] [Second Implementation Plan]

[0054] In the first embodiment, a structure with four ribs is shown, but a structure with six ribs can also be used. Hereinafter, as a second embodiment of the invention, the structure of a comb-tooth brush 200 including six ribs will be described. In the following description, the parts that differ from the first embodiment will be explained.

[0055] Figure 7 A front view of the comb-tooth trowel 200 according to the second embodiment is shown. The comb-tooth trowel 200 includes ribs 221 to 226. The ribs 221 and 226 on both sides do not intersect with the elongated hole 6. On the other hand, the four ribs 222 to 225 arranged on the inner side are divided into upper and lower parts by the elongated hole 6.

[0056] In addition, Figure 7 In the front view, ribs 221 to 226 are convex ribs facing the front. By setting ribs 221 to 226 in this way, the strength of the blade 202 can be improved in the comb trowel 200 including the elongated hole 6.

[0057] exist Figure 8 In several embodiments where ribs 221-226 are configured with different thicknesses, test results for "flexibility," "front-end warpage," "strength," and "coating operability" are shown, identical to those of the first embodiment. Figure 8 As shown, in all embodiments 2-1, 2-2, and 2-3 where the rib thickness was set to 1 mm, 2 mm, and 3 mm, all items related to "flexibility," "front-end warpage," "strength," and "coating operability" received evaluations above the permissible range. Furthermore, in all embodiments 2-1, 2-2, and 2-3, "strength" received a "very good" evaluation. Compared to the first embodiment, the number of ribs increased from four to six.

[0058] [Third Implementation Plan]

[0059] Next, as a third embodiment of the present invention, the construction of a comb-tooth brush 300 including five ribs will be described. In the following description, the parts that differ from the first and second embodiments will be explained.

[0060] Figure 9 A front view of a toothed trowel 300 according to a third embodiment is shown. The toothed trowel 300 includes ribs 321 to 325. Ribs 321 and 325 on both sides do not intersect with the elongated hole 6. On the other hand, three ribs 322 to 324 arranged on the inner side are divided into upper and lower parts by the elongated hole 6. In addition, the interval between ribs 321 and 322, and between ribs 324 and 325 is approximately 31 mm. The distance from rib 323 to ribs 322 and 324 is approximately 26 mm. That is, the interval between the outer ribs is larger than the interval between the inner ribs. However, the interval between the ribs is not limited to the above length and may also be approximately equal.

[0061] In addition, Figure 9 In the front view, ribs 321 to 325 are convex ribs facing the front. By setting ribs 321 to 325 in this way, the strength of the blade 302 can be improved in the comb 300 including the elongated hole 6.

[0062] exist Figure 10 In several embodiments where ribs 321-325 are configured with different thicknesses, test results for "flexibility," "front-end warpage," "strength," and "coating operability" are shown, identical to those of the embodiments described above. Figure 10 As shown, in all embodiments 3-1, 3-2, and 3-3 where the rib thickness was set to 1 mm, 2 mm, and 3 mm, all items of "flexibility," "front-end warpage," "strength," and "coating operability" received evaluations above the permissible range. In the case of embodiment 3-2 with a rib thickness of 2 mm, the "flexibility" evaluation result was better than that of the other embodiments 3-1 and 3-3.

[0063] [Fourth Implementation Plan]

[0064] In the first to third embodiments, all ribs are shown to be convex in the frontal direction, but a portion of the ribs may also be concave. Hereinafter, as a fourth embodiment of the invention, the differences between the comb tooth 400, in which a portion of the ribs is concave, and the first to third embodiments will be described.

[0065] Figure 11A front view of the toothed trowel 400 according to the fourth embodiment is shown. The toothed trowel 400 includes five ribs 421-425, the same as those in the third embodiment described above. The ribs 421 and 425 on both sides do not intersect with the elongated hole 6. On the other hand, the three ribs 422-424 arranged on the inner side are divided into upper and lower parts by the elongated hole 6. In addition, the interval between ribs 421 and 422, and between ribs 424 and 425 is approximately 31 mm. In addition, the distance from rib 423 to ribs 422 and ribs 424 is approximately 26 mm. That is, the interval between the ribs on the outer side is larger than the interval between the ribs on the inner side. However, the interval between the ribs is not limited to the above length and may also be approximately equal.

[0066] Furthermore, in the fourth embodiment, ribs 421, 423, and 425 are formed in a convex shape facing the front, while ribs 422 and 424 are formed in a concave shape. That is, from rib 421 to rib 425, the convex-concave shape is repeated alternately in the order of convex, concave, convex, concave, and convex.

[0067] exist Figure 12 In the examples where the thickness of the ribs 421-425 varies at multiple stages, test results for "flexibility," "front-end warpage," "strength," and "coating operability" are shown, identical to those of the embodiments described above. Figure 12 As shown, in embodiments 4-1 and 4-2 where the rib thickness is set to 1 mm, 2 mm, and 3 mm, all items regarding "flexibility," "front warp," "strength," and "coating operability" received evaluations above the permissible range. In all embodiments, "flexibility" and "strength" received evaluations of "very good." Embodiments 4-1 and 4-2 differ from embodiments 3-2 and 3-3 of the third embodiment only in that a portion of the rib is formed in a concave shape. Regarding the evaluation of embodiments 4-1 and 4-2, they are particularly better than embodiments 3-2 and 3-3 in terms of "flexibility," "front warp," and "coating operability."

[0068] Furthermore, since ribs 422 and 424 are formed in a concave shape, the following advantages are also present. In the third embodiment, ribs 322 and 324 are convex. Here, in the third embodiment of the comb tooth 300... Figure 2 When the can is installed on the can 10 as shown, the handle 11 of the can 10 abuts against the protrusions of the ribs 322 and 324, and the handle 11 protrudes slightly from the upper surface of the can 10. In contrast, since the ribs 422 and 424 in the fourth embodiment are concave, the handle 11 of the can 10 does not abut against the ribs 422 and 424 when the toothed trowel 400 is installed on the can 10. This prevents the handle 11 from protruding upwards when the toothed trowel 400 is installed on the can 10.

[0069] [Fifth Implementation Plan]

[0070] In the first to fourth embodiments, although a structure is illustrated in which all ribs have the same length and are all located at a certain distance (approximately 67 mm) from the comb teeth 5, it is also possible to have a structure in which the ribs on both sides are located at a greater distance from the comb teeth 5 than the other ribs. Hereinafter, the structure of the comb tooth brush 500 will be described as a fifth embodiment of the present invention.

[0071] Figure 13 A front view of a toothed trowel 500 according to a fifth embodiment is shown. The toothed trowel 500 includes five ribs 521 to 525. The ribs 521 and 525 on both sides do not intersect with the elongated hole 6. On the other hand, the three ribs 522 to 524 arranged on the inner side are divided into upper and lower parts by the elongated hole 6. In addition, the interval between ribs 521 and 522, and between ribs 524 and 525 is approximately 31 mm. The distance from rib 523 to ribs 522 and 524 is approximately 26 mm. That is, the interval between the outer ribs is larger than the interval between the inner ribs. However, the interval between the ribs is not limited to the above length and may be approximately equal.

[0072] Furthermore, in the fifth embodiment, similar to the fourth embodiment, ribs 521-525 contain a mixture of convex and concave ribs. (See later...) Figure 14 To illustrate, the structures formed by ribs 521-525 in the order of convex, concave, convex, concave, and convex are defined as Examples 5-1 and 5-2, and the structures formed by ribs 521-525 in the order of concave, convex, concave, convex, and concave are defined as Examples 5-3 and 5-4. The rib thicknesses in Examples 5-1 and 5-3 differ from those in Examples 5-2 and 5-4. Here, in the fifth embodiment, compared to the fourth embodiment, the ribs 521 and 525 on both sides are located further away from the comb teeth 5. For example, in the fourth embodiment, the length of the lower ends of the ribs 421 and 425 on both sides and the lower end of the blade 402 is approximately 67 mm; in contrast, the corresponding length of the ribs 521 and 525 on both sides in the fifth embodiment is approximately 71 mm.

[0073] exist Figure 14 Examples 5-1 to 5-4 show the same test results for "flexibility," "front-end warpage," "strength," and "coating operability" as the embodiments described above. Figure 14 In all Examples 5-1 to 5-4, all items of "flexibility", "front warpage", "strength", and "coating operability" received evaluations above the permissible range. In Example 5-2, where the rib thickness was 3 mm, all items of "flexibility", "front warpage", "strength", and "coating operability" received evaluations of "very good".

[0074] In addition, as described in the fourth embodiment, the ribs 522 and 524 of embodiment 5-2 are formed in a concave shape, thus having the following advantages: the handle 11 of the can 10 will not abut against the ribs, and the handle 11 will not protrude upward from the upper surface of the can 10.

[0075] [Sixth Implementation Plan]

[0076] In the first to fifth embodiments, although a structure in which all ribs are of the same length is illustrated, it is also possible to make some ribs shorter than the others. Hereinafter, as a sixth embodiment of the present invention, a structure of a comb brush 600 in which some ribs are shorter than the others will be described. In the following description, a structure different from the first to fifth embodiments will be described.

[0077] Figure 15 A front view of the toothed trowel 600 according to the sixth embodiment is shown. The toothed trowel 600 includes five ribs 621-625. The ribs 621-625 are arranged in an alternating pattern of convex, concave, convex, concave, and convex. Furthermore, the ribs 621 and 625 on both sides do not intersect with the elongated hole 6, and are offset slightly upwards, similar to the fifth embodiment described above. Rib 623 is divided into upper and lower parts by the elongated hole 6. Moreover, the sixth embodiment differs from the fifth embodiment in that ribs 622 and 624 exist only on the lower side of the elongated hole 6.

[0078] Figure 16 A rear view of the comb-tooth trowel 600 is shown. Additionally, Figure 17 A top view of the comb-tooth trowel 600 is shown. Figure 18 A bottom view of the comb spatula 600 is shown. Figure 19 A right view of the comb-tooth trowel 600 is shown. Figure 19 As shown, the convex rib 625 is located on the upper side than the convex rib 623. In addition, the concave portion 624 is concave only at the lower end on the side of the comb tooth portion 5. Figure 20 A perspective view of the comb toother 600 is shown.

[0079] exist Figure 21 In Example 6, where the thickness of ribs 621-625 is set to 3 mm, the same test results for "flexibility," "front-end warpage," "strength," and "coating operability" as in the above-described embodiments are shown. That is, Example 6 differs from Example 5-2 of the fifth embodiment in that ribs 622 and 624 exist only on the underside of the elongated hole 6. Figure 21 In Example 6, the test results for "flexibility", "front warpage", "strength" and "coating operability" were all "very good".

[0080] In addition, as described in the fourth embodiment, the comb 600 has the following advantages: the handle 11 of the can 10 does not abut against the ribs 622 and 624, and the handle 11 does not protrude upward from the upper surface of the can 10.

[0081] [Other Implementation Plans]

[0082] The embodiments described above are merely examples for implementing the present invention. Therefore, the present invention is not limited to the above embodiments, and can be implemented by appropriate modifications to the above embodiments without departing from its spirit.

[0083] For example, in the above embodiments, examples are shown where multiple ribs are parallel to each other and arranged in a direction orthogonal to the extending direction of the elongated hole 6. However, some or all of the multiple ribs may also be arranged to intersect at an angle relative to the extending direction of the elongated hole 6. Furthermore, the number of ribs, the ratio of concave ribs to convex ribs, and the arrangement order are not limited to the specific examples described above.

[0084] In addition, such as Figures 22-25 As shown, a structure with three ribs is also included in an embodiment of the invention. Figures 22-25 In the drawings, the same reference numerals are used to refer to the structures described in the other embodiments above.

[0085] The present invention can also be described as follows.

[0086] The first-constructed comb applicator of the present invention is a comb applicator for applying adhesive, comprising: a blade having a comb-tooth shape at one end, and a handle located on the other side of the blade for the operator to hold; the blade comprising: an elongated hole for inserting a handle disposed on the upper surface of a container storing adhesive, extending horizontally at one end of the blade, and a plurality of ribs arranged in a direction intersecting the extending direction of the elongated hole.

[0087] In this first construction, by including multiple ribs existing in a direction intersecting the extension direction of the elongated hole, the flexibility of the blade and the degree of warping at the front end can be appropriately maintained, thus enabling a comb-tooth trowel with strength and work efficiency.

[0088] In the second configuration of the comb spatula of the present invention, in the first configuration of the comb spatula, the two ribs located on both sides of the blade portion do not intersect with the elongated hole portion.

[0089] According to the second construction, the strength of the cutting edge can be improved by providing ribs on both sides of the cutting edge that do not intersect with the elongated hole.

[0090] The third configuration of the comb spatula of the present invention includes, in the first or second configuration of the comb spatula, a plurality of ribs including convex ribs and concave ribs.

[0091] According to the third structure, since the multiple ribs include convex ribs and concave ribs, the flexibility of the comb teeth and the degree of warping at the front end can be made suitable.

[0092] In the fourth configuration of the comb spatula of the present invention, in the third configuration of the comb spatula, convex ribs and concave ribs are alternately arranged in the extending direction of the elongated hole.

[0093] According to the fourth construction, since the convex and concave ribs in the multiple ribs are alternately arranged in the extension direction of the elongated hole, a comb toother with a more suitable degree of flexibility and front end warping can be achieved.

[0094] In the fifth configuration of the comb spatula of the present invention, in the first to fourth configurations of the comb spatula, the distance between the lower end of the two ribs located on both sides of the blade and one end of the blade is greater than the distance between the lower end of the rib located inside the blade and one end of the blade.

[0095] According to this fifth construction, by setting the two ribs located at both ends of the blade to be further away from one end of the blade than the other ribs, the strength of the blade can be improved.

[0096] In the sixth configuration of the comb spatula of the present invention, in the third or fourth configuration of the comb spatula, the plurality of ribs include convex ribs and concave ribs.

[0097] In the sixth configuration of the comb spatula of the present invention, in the third or fourth configuration of the comb spatula, the concave ribs among the plurality of ribs do not intersect with the elongated holes.

[0098] According to the sixth structure, the concave ribs among the multiple ribs do not intersect with the elongated holes, thus enabling the creation of a comb-shaped applicator with good flexibility, front end warping, strength, and coating operability.

[0099] The adhesive coating kit of the seventh construction of the present invention includes: a container for storing adhesive and a comb spatula as described in any of the first to sixth constructions, wherein the comb spatula can be mounted on the upper surface of the container by inserting a handle provided on the upper surface of the container into the elongated hole of the comb spatula.

[0100] According to this seventh configuration, the toothed spatula can be mounted on the container by inserting the handle provided on the upper surface of the container into the elongated hole of the toothed spatula. This prevents the toothed spatula from falling off and being lost when the container is moved.

[0101] According to the eighth configuration of the adhesive coating kit of the present invention, the seventh configuration of the adhesive coating kit further includes a container cap covering the top of the container, and the container cap has a clamping portion that folds inward from a pair of opposing sides or two pairs of opposing sides and engages with the end of the upper surface of the container.

[0102] According to the eighth configuration, the container lid has a clamping portion that folds inward from a pair of opposing sides and engages with the upper surface end of the container. This makes the container lid less likely to detach from the container. Furthermore, after applying the adhesive, by covering the upper part of the container with the container lid, the container can be moved without exposing the adhesive adhering to the comb applicator to the outside.

Claims

1. A toothed trowel for applying adhesives, comprising: The blade has a comb-like shape at one end; as well as A hand-held portion, located at the other end of the blade, is provided for the operator to grip. The joint is located between the handle and the blade. The cutting edge includes: The elongated portion is a hole for inserting a handle provided on the upper surface of the container storing the adhesive, and extends horizontally to one end of the blade. as well as Multiple ribs are arranged in a direction intersecting the extending direction of the elongated hole. The plurality of ribs includes convex ribs and concave ribs on one surface of a comb-shaped blade.

2. The comb-tooth brush according to claim 1, wherein, The two ribs located on both sides of the cutting edge do not intersect with the elongated hole.

3. The comb-tooth brush according to claim 1, wherein, In the plurality of ribs, the convex ribs and the concave ribs are alternately arranged in the extending direction of the elongated hole.

4. The comb-tooth brush according to any one of claims 1 to 3, wherein, The distance between the lower ends of the two ribs located on both sides of the blade and one end of the blade is greater than the distance between the lower end of the rib located on the inner side of the blade and one end of the blade.

5. The comb-tooth tool according to any one of claims 1 to 3, wherein, The concave ribs among the plurality of ribs do not intersect with the elongated holes.

6. An adhesive coating kit, comprising: A container for storing the adhesive; as well as The comb-tooth brush according to any one of claims 1 to 5, The comb can be mounted on the upper surface of the container by inserting the handle provided on the upper surface of the container into the elongated hole of the comb.

7. The adhesive coating kit according to claim 6, wherein, It also has a container cover that covers the top of the container. The container cover includes a clamping portion that folds inward from one or two opposing sides and engages with the end of the upper surface of the container.

8. The adhesive coating kit according to claim 6, wherein, With the comb-tooth spatula inserted into the elongated hole and engaged with the top surface of the container, among the plurality of ribs, the rib located at the overlapping position of the handle portion is formed in a concave shape relative to the upper side of the container.

Citation Information

Patent Citations

  • Putty spatula

    JP1996144498A

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