Grips and handlebars with grips

Abstract

SOLUTION: A grip 10 according to the present invention includes: a cylindrical member 20 through which a handle bar 12 is inserted; and a cover member 22 covering the cylindrical member 20. The inner peripheral surface of the cylindrical member 20 has an elliptical shape. A through-hole 20TH, through which a fixing member 40 for fixing the handlebar 12 and the cylindrical member 20 to each other is inserted, is formed in the cylindrical member 20. The through-hole 20TH extends along a short-axis direction D2 of the ellipse.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a grip and a handlebar with a grip.

Background Art

[0002] Generally, a grip is attached to a handlebar of a motorcycle or the like. In Patent Document 1 below, in order to improve the assemblability of the grip to the handlebar, it is described that a large number of through holes are formed in the grip to reduce the frictional resistance. Also, in Patent Document 1 below, in order to improve the assemblability of the grip to the handlebar, it is described that a liquid adhesive is applied as a lubricant between the inner peripheral surface of the grip and the handlebar.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, it is desired to solve the problem that it is difficult to attach a grip to a handlebar. Also, it is desired to solve the problem that the grip attached to the handlebar comes off.

[0005] The present invention aims to solve the above-described problems.

Means for Solving the Problems

[0006] One aspect of the present invention is a grip comprising a cylindrical member inserted through a handlebar and a cover member covering the cylindrical member, wherein in a cross section perpendicular to the longitudinal direction of the cylindrical member, the inner circumferential surface of the cylindrical member is elliptical, and the cylindrical member has a through hole through which a fixing member for fixing the handlebar and the cylindrical member is inserted, and the through hole extends along the minor axis of the ellipse.

[0007] Another aspect of the present invention is a handlebar with a grip, to which the above-mentioned grip is attached. [Effects of the Invention]

[0008] According to the present invention, the grip is provided with an elliptical shape that strongly contacts the handlebar (short diameter portion) and a portion that allows deformation during assembly (long diameter portion). This makes it possible to realize a grip that is easy to attach to the handlebar and can maintain its attached state on the handlebar. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 shows the grip according to this embodiment mounted on the handlebar. [Figure 2] Figure 2 is a perspective view showing the grip. [Figure 3] Figure 3 is a cross-sectional view showing the section III-III in Figure 1. [Figure 4] Figure 4 is a cross-sectional view showing the section IV-IV in Figure 1. [Figure 5] Figure 5 is a cross-sectional view showing the grip of a comparative example. [Figure 6] Figure 6 is a cross-sectional view showing a modified example of the protrusion. [Modes for carrying out the invention]

[0010] [Embodiment] As shown in Figure 1, the handlebar with grip according to this embodiment comprises a grip 10 and a handlebar 12. The grip 10 is attached to the handlebar 12. The handlebar 12 can be mounted on a mobile vehicle, a wheelbarrow, or a work machine. Examples of mobile vehicles include motorcycles, bicycles, and buggies. Examples of wheelbarrows include unicycles. Examples of work machines include lawnmowers.

[0011] As shown in Figure 2, the grip 10 comprises a cylindrical member 20 and a cover member 22. The cylindrical member 20 is the inner part of the grip 10. The cylindrical member 20 is made of, for example, a thermoplastic resin. The cylindrical member 20 is inserted through the handlebar 12.

[0012] The cover member 22 is the outer part of the grip 10. The cover member 22 is made of, for example, rubber. The cover member 22 covers the cylindrical member 20. The cover member 22 is attached to the cylindrical member 20 so as not to move relative to the cylindrical member 20. The length of the cover member 22 in the direction in which the cover member 22 extends is longer than the length of the cylindrical member 20 in the direction in which the cylindrical member 20 extends.

[0013] The cover member 22 has a cover body portion 22A and a separation portion 22B. The cover body portion 22A is a tubular portion that abuts against the outer circumferential surface of the cylindrical member 20. The separation portion 22B is a portion that separates from the cylindrical member 20 at one end of the cylindrical member 20. The separation portion 22B extends radially from the cover body portion 22A toward one end of the cylindrical member 20. The outer shape of the separation portion 22B is larger than the outer shape of the cover body portion 22A. For example, the outer shape of the separation portion 22B is a frustoconical shape. The inner circumferential surface of the separation portion 22B has irregularities 26 formed on it. The separation portion 22B is not in contact with the outer circumferential surface of the cylindrical member 20 and can be peeled back.

[0014] The cover member 22 has a projection 28 at the other end of the cylindrical member 20 that protrudes from the inner circumferential surface of the cover member 22. The projection 28 penetrates a projection insertion hole 20RH formed in the cylindrical member 20 and extends inward into the cylindrical member 20.

[0015] As shown in Figure 3, in a cross-section perpendicular to the longitudinal direction of the cylindrical member 20 (the direction in which the cylindrical member 20 extends), the inner circumferential surface of the cylindrical member 20 is formed in a generally elliptical shape. A pair of recesses 30 are formed on the inner circumferential surface of the cylindrical member 20. When the pair of recesses 30 are not formed, the inner circumferential surface of the cylindrical member 20 is substantially elliptical. The length A of the major axis of the ellipse is greater than the length B of the minor axis of the ellipse (A > B). Note that the pair of recesses 30 may be formed on the inner circumferential surface of a perfect circle such that the inner circumferential surface as a whole is substantially elliptical.

[0016] The pair of recesses 30 are each located on the inner surface of the cylindrical member 20 in the direction of the major axis D1 of the ellipse. The pair of recesses 30 are arranged facing each other. As shown in Figure 2, the pair of recesses 30 each extend along the longitudinal direction of the cylindrical member 20 from one end to the other. Each of these pair of recesses 30 is provided with the aforementioned projection insertion hole 20RH.

[0017] As shown in Figure 3, in a cross-section perpendicular to the longitudinal direction of the cylindrical member 20, the outer surface of the cylindrical member 20 is formed in a generally circular shape. A flat portion 32 is formed on the outer surface of the cylindrical member 20. When the flat portion 32 is not formed, the outer surface of the cylindrical member 20 is substantially circular.

[0018] The cylindrical member 20 has a through hole 20TH formed therein. The through hole 20TH is located at one end of the cylindrical member 20. The through hole 20TH extends along the minor axis direction D2 of the ellipse. The through hole 20TH opens to the flat portion 32 on the outer peripheral surface of the cylindrical member 20. The flat portion 32 serves as a base for the fixing member 40 inserted through the through hole 20TH. The fixing member 40 is a member for fixing the cylindrical member 20 to the handlebar 12. In the present embodiment, the fixing member 40 is a rivet, but it is not limited thereto. For example, the fixing member 40 may be a screw, a bolt, or the like. Note that the through hole 20TH is exposed when the separation portion 22B of the cover member 22 is wound.

[0019] Corresponding to the through hole 20TH of the cylindrical member 20, a bar through hole 12TH is formed in the handlebar 12. The fixing member 40 inserted through the through hole 20TH of the cylindrical member 20 is inserted through the bar through hole 12TH.

[0020] As shown in FIG. 4, the cylindrical member 20 has a protrusion insertion hole 20RH formed therein. As described above, the protrusion insertion hole 20RH is located in a pair of concave portions 30 at the other end of the cylindrical member 20. The protrusion insertion hole 20RH extends along the major axis direction D1 of the ellipse. The protrusion 28 of the cover member 22 is inserted through the protrusion insertion hole 20RH.

[0021] FIG. 5 is a cross-sectional view showing a grip 100 of a comparative example. The grip 100 of the comparative example is composed of a resin-made circular tube portion 50, a rubber-made ring portion 52, and a rubber-made cover portion 54. The ring portion 52 is attached to the inner peripheral surface of the circular tube portion 50. The cover portion 54 is attached to the outer peripheral surface of the circular tube portion 50. Concave portions and convex portions are formed in the circumferential direction on the inner peripheral surface of the ring portion 52.

[0022] When attaching the grip 100 of the comparative example to the handlebar 12, the operator inserts the ring portion 52 through the handlebar 12. When the ring portion 52 is inserted through the handlebar 12, the grip 100 presses the outer peripheral surface of the handlebar 12. The mounting strength between the handlebar 12 and the grip 100 is maintained by this pressing force.

[0023] Manufacturing tolerances may occur in the grip 100. For example, as the height of the protrusion of the ring portion 52 approaches the upper limit of the tolerance range, the frictional resistance between the handlebar 12 and the ring portion 52 increases when the ring portion 52 is inserted into the handlebar 12. Similarly, as the outer diameter of the handlebar 12 approaches the upper limit of the tolerance range, the frictional resistance between the handlebar 12 and the ring portion 52 increases. Therefore, the worker needs to forcefully push the grip 100 in. As a result, the installation process cannot be carried out smoothly.

[0024] On the other hand, as the height of the protrusion of the ring portion 52 approaches the lower limit of the tolerance range, the contact area between the handlebar 12 and the ring portion 52 decreases, and the pressing force decreases. Similarly, as the outer diameter of the handlebar 12 approaches the lower limit of the tolerance range, the pressing force decreases. Therefore, it becomes more difficult to maintain mounting strength.

[0025] If the mounting strength becomes difficult to maintain, it is possible to apply adhesive to the inner surface of the ring portion 52 and then insert the ring portion 52 onto the handlebar 12 in order to compensate for the mounting strength.

[0026] However, the amount of adhesive applied, or the area over which it is applied, is highly dependent on the skill of the worker. Therefore, depending on the worker's skill, unevenness may occur in the adhesive applied between the handlebar 12 and the grip 100, resulting in variations in the attachment strength.

[0027] In contrast, in this embodiment, the inner circumferential surface of the cylindrical member 20 inserted through the handlebar 12 is formed in an elliptical shape. Therefore, the contact surface between the cylindrical member 20 and the handlebar 12 in the longitudinal direction D1 can be reduced at the major axis portion (long axis portion) of the cylindrical member 20. Consequently, even if at least one of the outer diameter of the handlebar 12 and the inner diameter of the cylindrical member 20 approaches the upper limit of the tolerance range, the frictional resistance force between the handlebar 12 and the cylindrical member 20 can be reduced. As a result, the grip 10 can be easily attached. On the other hand, the minor axis portion (short axis portion) of the cylindrical member 20 can come into strong contact with the handlebar 12, and as a result, the attached state on the handlebar 12 can be maintained.

[0028] Furthermore, in this embodiment, a through hole 20TH through which the fixing member 40 is inserted is formed in the cylindrical member 20, and the through hole 20TH extends along the minor axis direction D2 of the ellipse. Therefore, the handlebar 12 and the cylindrical member 20 can be fixed together by the fixing member 40 while the handlebar 12 and the cylindrical member 20 are in contact. Thus, even if at least one of the outer diameter of the handlebar 12 and the inner diameter of the cylindrical member 20 approaches the lower limit of the tolerance range, it can be firmly fixed while suppressing variations in mounting strength.

[0029] Furthermore, in this embodiment, at one end of the cylindrical member 20 where the through hole 20TH is located, the cover member 22 has a separated portion 22B that is separated from the cylindrical member 20. Therefore, when inserting the fixing member 40 through the through hole 20TH, the worker can insert their finger into the separated portion 22B and roll up the cover member 22. Also, when using the grip 10, the through hole 20TH can be hidden, resulting in a good design.

[0030] Furthermore, in this embodiment, irregularities 26 are formed on the inner circumferential surface of the separated portion 22B. Therefore, the cover member 22 is easier to peel back compared to when the irregularities 26 are not formed.

[0031] Furthermore, in this embodiment, a recess 30 is formed on the inner surface of the cylindrical member 20 along the longitudinal direction of the cylindrical member 20 in the major axis direction D1 of the ellipse. Therefore, even if the outer diameter of the handlebar 12 approaches the upper or lower limit of the tolerance range, the grip 10 can be easily attached without reducing the mounting strength. Also, even if the type of handlebar 12 is different, the grip 10 can be easily attached without reducing the mounting strength.

[0032] Furthermore, in this embodiment, the projection 28 protruding from the inner circumferential surface of the cover member 22 penetrates the projection insertion hole 20RH of the recess 30 and extends into the inside of the cylindrical member 20. Therefore, even if there is a gap between the cylindrical member 20 and the handlebar 12, it is possible to suppress the grip 10 from swinging in the longitudinal axis direction D1 with the fixing member 40 as a pivot point.

[0033] As described above, according to this embodiment, a grip 10 that is easy to attach can be realized without reducing the attachment strength.

[0034] The above embodiment may be modified as follows.

[0035] (Variation 1) The cylindrical member 20 may have a pair of through holes 20TH facing each other along the short axis direction D2. Alternatively, the cylindrical member 20 may have a pair of through holes 20TH formed at the other end of the cylindrical member 20. In these cases, the cylindrical member 20 can be fixed to the handlebar 12 at two points. As a result, the mounting strength of the grip 10 to the handlebar 12 can be increased.

[0036] (Modification 2) The through-hole 12TH does not necessarily have to be formed in the handlebar 12. In this case, for example, the through-hole 20TH of the cylindrical member 20 can be formed as a threaded hole, and the cylindrical member 20 can be fixed to the handlebar 12 using a fixing member 40 such as a set screw that is screwed into the threaded hole.

[0037] (Variation 3) The cylindrical member 20 may be longer than the cover member 22, or it may be about the same length as the cover member 22.

[0038] (Modification 4) The cover member 22 may have a spaced portion 22B at the other end of the cylindrical member 20. Alternatively, the cover member 22 may have a spaced portion 22B at both one end and the other end of the cylindrical member 20.

[0039] (Variation 5) The protrusions 28 may be spaced apart along the longitudinal direction of the cylindrical member 20. Alternatively, as shown in Figure 6, protrusions 28' that protrude from the recess 30 may be provided in the recess 30. In this case, the protrusion insertion hole 20RH is not formed. Furthermore, it is desirable that the cylindrical member 20 be made of rubber or the like.

[0040] (Experimental variation 6) The grip 10 may also be a grip heater. In this case, a heat conductive element is placed between the cylindrical member 20 and the cover member 22. For example, metal foil such as copper, aluminum, nickel, or titanium can be used as the heat conductive element.

[0041] [Note] The following additional information is disclosed regarding the above embodiments and modifications.

[0042] (Note 1) This disclosure relates to a grip (10) comprising a cylindrical member (20) inserted through a handlebar (12) and a cover member (22) covering the cylindrical member, wherein in a cross section perpendicular to the longitudinal direction of the cylindrical member, the inner circumferential surface of the cylindrical member is elliptical, and the cylindrical member has a through hole (20TH) through which a fixing member (40) for fixing the handlebar and the cylindrical member is inserted, and the through hole extends along the minor axis direction (D2) of the ellipse.

[0043] This design allows the shorter diameter (short axis) portion of the cylindrical member to make strong contact with the handlebar, while the longer diameter (long axis) portion allows for tolerance of manufacturing tolerances in the handlebar or cylindrical member. Therefore, the contact surface area of ​​the cylindrical member with the handlebar can be reduced while still firmly fixing the handlebar and cylindrical member together. Furthermore, since the handlebar and cylindrical member are fixed through a through-hole provided on the shorter diameter side, the structure suppresses lifting of the fastening portion (fixing part). As a result, a grip that is easy to attach to the handlebar and can maintain its attached state on the handlebar can be realized.

[0044] (Note 2) The grip described in Appendix 1 is such that the through hole is located at the end of the cylindrical member, and the cover member may have a spaced portion (22B) at the end of the cylindrical member that is spaced apart from the cylindrical member. This allows the worker to insert their finger into the spaced portion and roll up the cover member when inserting the fixing member through the through hole. In addition, the through hole can be hidden when the grip is in use, resulting in a good design.

[0045] (Note 3) The grip described in Appendix 2 may have irregularities (26) formed on the inner circumferential surface of the separated portion. This makes it easier to peel back the cover member compared to when no irregularities are formed.

[0046] (Note 4) In the grip described in Appendix 1, a recess (30) may be formed on the inner surface portion of the cylindrical member in the direction of the major axis (D1) of the ellipse, along the longitudinal direction of the cylindrical member. This allows the grip to be easily attached without reducing the mounting strength, even if there are manufacturing errors in the handlebar or if the type of handlebar is different.

[0047] (Note 5) The grip described in Appendix 4 is provided with a projection (28) that protrudes from the inner circumferential surface of the cover member, and the projection may extend to the inside of the cylindrical member by passing through a projection insertion hole (20RH) formed in the cylindrical member. This makes it possible to suppress the grip from swinging in the longitudinal direction with the fixing member as a pivot point, even if there is a gap between the cylindrical member and the handlebar.

[0048] (Note 6) The grip described in Appendix 4 may have a projection (28') that protrudes from the recess. This prevents the grip from swinging in the longitudinal direction with the fixing member as a pivot point, even if there is a gap between the cylindrical member and the handlebar.

[0049] (Note 7) This disclosure relates to a handlebar with a grip attached, which is fitted with one of the grips described in any one of the appendices 1 to 6.

[0050] Furthermore, the present invention is not limited to the disclosure described above, and can take various configurations without departing from the spirit of the invention. [Explanation of symbols]

[0051] 10…Grips 12…Handlebars 20...Cylindrical member 22...Cover member 22B...Separation part 26...Irregularities 28, 28'...Protrusions 30...Recess 32...Flat area

Claims

1. A cylindrical member inserted through the handlebar, A cover member that covers the cylindrical member, Equipped with, In a cross-section perpendicular to the longitudinal direction of the cylindrical member, the inner circumferential surface of the cylindrical member is elliptical. The cylindrical member has a through hole through which a fixing member for fixing the handlebar and the cylindrical member is inserted. The through-hole extends along the minor axis of the ellipse, forming a grip.

2. The grip according to claim 1, The through hole is located at the end of the cylindrical member, The cover member is a grip having a separated portion at the end of the cylindrical member that is separated from the cylindrical member.

3. The grip according to claim 2, The inner surface of the separated portion has irregularities formed on it, which is the grip.

4. The grip according to claim 1, A grip in which a recess is formed on the inner surface portion of the cylindrical member in the direction of the major axis of the ellipse, along the longitudinal direction of the cylindrical member.

5. The grip according to claim 4, The cover member is provided with a projection that protrudes from the inner circumferential surface of the cover member. The aforementioned projection extends inward through the projection insertion hole formed in the recess, forming a grip.

6. The grip according to claim 4, A grip is provided in which a projection is provided in the recess, the projection being located thereon.

7. A handlebar with a grip, fitted with the grip described in any one of claims 1 to 6.

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