Door handle

Abstract

A door handle and a connecting member that can connect a rod-shaped member and a tubular member with high accuracy and ease are provided. [Solution] The door handle 2 has a rod-shaped member 3, a tubular member 4, and connecting members 1, 1', and the connecting members 1, 1' have a first connecting portion 7, a second connecting portion 8, and an intermediate portion 9 provided between the two connecting portions 7, 8, and the second connecting portion 8 has a slit 14 extending in the axial direction, and the second connecting portion 8 has a portion where its outer diameter is larger at the axial end side than at the intermediate portion 9 side, and the first connecting portion 7 and the rod-shaped member 3 are connected, and the tubular member 4 is inserted on the outer diameter side of the second connecting portion 8 in the opposite direction to the rod-shaped member 3, and the connecting members 1, 1' have a first connecting portion 7, a second connecting portion 8, and an intermediate portion 9 provided between the two connecting portions 7, 8, and the second connecting portion 8 has a slit 14 extending in the axial direction, and the second connecting portion 8 has a portion where its outer diameter is larger at the axial end side than at the intermediate portion 9 side.

Description

[Technical Field]

[0001] The present invention relates to a door handle and a connecting member. [Background technology]

[0002] A commonly known door handle structure is one in which elbow-shaped tubular members are connected to both ends of a rod-shaped member that serves as a grip, and the tubular members are then attached to the door body. For example, Patent Document 1 listed below describes a gripping tool in which elbow-shaped leg tubes 3 are connected to both ends of a wooden grip bar 1.

[0003] As a connection structure between the grip bar 1 and the leg tube 3, Figure 1 of Patent Document 1 shows a configuration in which pilot holes 5 are formed in the axial centers of both ends of the grip bar 1, and a wood screw portion 2b formed on one end of the fastening shaft 2 is screwed into these pilot holes 5, and a threaded hole 7 is formed in the leg tube 3, and a threaded portion 2a formed on the other end of the fastening shaft 2 is screwed into this threaded hole 7. Furthermore, Figure 3 of Patent Document 1 shows a configuration in which a sleeve 53 with a threaded hole 54 formed therein is press-fitted into the open end of a tubular leg tube 52, and a threaded portion 55 of a connecting shaft 56 is screwed into this threaded hole 54. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 2834719 Summary of the Invention [Problem to be solved by the invention]

[0005] As shown in Figure 1 of Patent Document 1, in a configuration in which pilot holes 5 are formed at the axial centers of both ends of the grip bar 1 and threaded holes 7 are formed at the axial center of the leg tube 3, the positions of the pilot holes 5 and threaded holes 7 may be misaligned from the axial centers of the grip bar 1 and leg tube 3 due to machining tolerances. If the grip bar 1 and leg tube 3 are connected with the fastening shaft 2 while these positions are misaligned, uneven steps will occur along the circumferential direction at the connection, significantly compromising the appearance of the product. Furthermore, because the grip bar 1 and leg tube 3 are threaded together via the fastening shaft 2, skill is required to simultaneously adjust the pitch (length between both ends) and angle of the pair of leg tubes 3 threaded into the grip bar 1. Furthermore, as shown in Figure 3 of Patent Document 1, when a sleeve is provided at the open end of the tubular leg tube 52, it is preferable to securely fasten the press-fit sleeve 53 by welding or other fastening means, but this fastening process requires considerable effort and cost.

[0006] Therefore, an object of the present invention is to provide a door handle that can accurately and easily connect a rod-shaped member used as a grip bar to a tubular member that fixes the rod-shaped member to the door body, and a connecting member that can be used to connect the rod-shaped member and the tubular member. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides: The door handle includes a rod-shaped member as a grip bar, a tubular member that fixes the rod-shaped member to the door body, and a connecting member that connects the rod-shaped member and the tubular member in the axial direction, the connecting member has a first connecting portion, a second connecting portion adjacent to the first connecting portion in the axial direction, and an intermediate portion provided between the first connecting portion and the second connecting portion, a slit extending in the axial direction is formed in the second connection portion, and the second connection portion has a portion where the outer diameter is larger on the axial end side than on the intermediate portion side, The door handle is configured such that the first connection portion and the rod-shaped member are connected, and the tubular member is inserted into the outer diameter side of the second connection portion in a direction opposite to that of the rod-shaped member (first configuration).

[0008] In this way, there is no need to provide a pilot hole for threading a fastening shaft that connects the rod-shaped member and the tubular member, or a sleeve for threading the fastening shaft into the tubular member, so the rod-shaped member and the tubular member can be connected accurately and simply. Moreover, even if the inner diameter of the tubular member is smaller than the outer diameter of the second connecting part, the second connecting part is reduced in diameter by the action of the slit, so the tubular member can be easily inserted into the second connecting part.

[0009] In the first configuration, the second connecting portion may be configured (second configuration) to include a tapered portion whose outer diameter increases from the intermediate portion toward the axial end portion and a constant diameter portion that is axially continuous with the maximum diameter portion of the tapered portion and has a constant outer diameter toward the axial end portion. When the inner diameter of the tubular member is approximately the same as the outer diameter of the constant diameter portion, the tubular member and the constant diameter portion of the connecting member are in near-surface contact. On the other hand, when the inner diameter of the tubular member is smaller than the outer diameter of the constant diameter portion, contact between the tubular member and the constant diameter portion reduces the diameter of the constant diameter portion and the tapered portion, and as a result of this diameter reduction, the tubular member, the tapered portion, and the intermediate portion are in near-surface contact. By forming a tapered portion and a constant diameter portion in the second connecting portion in this manner, even if the inner diameter of the tubular member varies due to processing tolerances, it is possible to maximize the surface contact between the tubular member and the second connecting portion, thereby enabling the connecting member to be reliably attached to the tubular member.

[0010] The first and second configurations can be configured (third configuration) such that a slit extending in the axial direction is formed in the first connecting portion. In this configuration, for example, when a rod-shaped member is inserted into the inner diameter of the first connecting portion, even if the outer diameter of the rod-shaped member is slightly larger than the inner diameter of the first connecting portion, the slit expands the inner diameter of the first connecting portion, allowing the rod-shaped member to be inserted. Furthermore, when the first connecting portion and the rod-shaped member are fixed with an adhesive, the adhesive also flows into the slit, further improving the fixing strength of the adhesive.

[0011] In the first to third configurations, a configuration (fourth configuration) can be adopted in which a rough surface portion is formed on at least a part of the inner and outer diameter surfaces of the first connecting portion and the second connecting portion. In this way, the surface area of ​​the portion where the rough surface portion is formed increases, and therefore, when the rod-shaped member and the tubular member are fixed to the connecting member with an adhesive, the fixing strength by the adhesive can be further improved.

[0012] In order to solve the above problems, the present invention provides: a first connection portion, a second connection portion adjacent to the first connection portion in the axial direction, and an intermediate portion provided between the first connection portion and the second connection portion, A connecting member is configured in which a slit extending in the axial direction is formed in the second connecting portion, and the outer diameter of the second connecting portion has a portion where the diameter is larger on the axial end side than on the intermediate portion side (fifth configuration).

[0013] In this way, when the first connecting portion and the rod-shaped member are connected and the tubular member is inserted into the outer diameter side of the second connecting portion in the opposite direction to the rod-shaped member to connect the two, even if the inner diameter of the tubular member is smaller than the outer diameter of the second connecting portion, the second connecting portion will be reduced in diameter due to the action of the slit, so that the tubular member can be easily inserted into the second connecting portion. [Effects of the Invention]

[0014] The door handle according to the present invention has a first connecting portion, a second connecting portion axially adjacent to the first connecting portion, and an intermediate portion provided between the first and second connecting portions, and the second connecting portion has an axially extending slit formed therein, and the rod-shaped member and the tubular member are connected by a connecting member having an outer diameter larger at the axial end side than at the intermediate portion side, so that the rod-shaped member and the tubular member can be connected accurately and easily. Moreover, even if the inner diameter of the tubular member is smaller than the outer diameter of the second connecting portion, the second connecting portion is reduced in diameter by the action of the slit, so that the tubular member can be easily inserted into the second connecting portion. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a front view showing a state in which a door handle using a connecting member (first embodiment) according to the present invention is attached to a door body; [Figure 2] FIG. 2 is a perspective view of the connecting member shown in FIG. 1; [Figure 3] Cross-sectional view of the connecting member shown in FIG. [Figure 4] 3 is a plan view of the connecting member shown in FIG. 2 [Figure 5] FIG. 2 is a front view showing dimensions of each part of a rod-shaped member, a tubular member, and a connecting member used in the door handle according to the first embodiment; [Figure 6] FIG. 1 is a cross-sectional view showing a first example of a main part of a door handle according to a first embodiment; [Figure 7] FIG. 10 is a cross-sectional view showing a second example of a main part of the door handle according to the first embodiment; [Figure 8] FIG. 1 is a perspective view of a connecting member according to a second embodiment of the present invention; [Figure 9] 9 is a cross-sectional view of the connecting member shown in FIG. 8 . [Figure 10] FIG. 10 is a cross-sectional view showing a first example of a main part of a door handle according to a second embodiment; [Figure 11] FIG. 10 is a cross-sectional view showing a second example of a main part of a door handle according to a second embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0016] A door handle 2 using a connecting member 1 (first embodiment) according to the present invention will be described with reference to the drawings. As shown in Fig. 1, this door handle 2 is attached to a door body D and used to open and close the door, and includes a rod-shaped member 3 as a grip for the door handle 2, a tubular member 4 that fixes the rod-shaped member 3 to the door, and a connecting member 1 that connects the rod-shaped member 3 and the tubular member 4 in the axial direction.

[0017] The rod-shaped member 3 is a wooden member having a cylindrical main body 5 and cylindrical small-diameter portions 6 formed on both ends of the main body 5 and having a smaller diameter than the main body 5 (see FIG. 5). In this embodiment, the rod-shaped member 3 is a solid member, but it can also be a hollow member. Furthermore, instead of being a wooden member, it can also be a resin member, a metal member, or the like.

[0018] The tubular member 4 is an elbow-shaped stainless steel member bent into an L-shape. One end of the tubular member 4 is connected to the rod-shaped member 3, while the other end is connected to the door handle 2 on the opposite side via the door body D. In this embodiment, the tubular member 4 is an elbow-shaped member, but it may have another shape, such as a straight shape, as long as it can be attached to the door body D. Furthermore, instead of a stainless steel member, a resin member or zinc die-cast member may also be used.

[0019] 2 to 4, the connecting member 1 is a member made of ABS resin and has a first connecting portion 7, a second connecting portion 8 axially adjacent to the first connecting portion 7, and an intermediate portion 9 provided between the first connecting portion 7 and the second connecting portion 8. As the material for the connecting member 1, a resin material other than ABS resin, a thin metal material, or the like can also be used.

[0020] The first connecting portion 7 is cylindrical and has a tapered surface on its outer diameter side where the outer diameter decreases from the intermediate portion 9 toward one end in the axial direction (the right side in FIG. 3), and a tapered surface on its inner diameter side where the inner diameter increases from the intermediate portion 9 toward one end in the axial direction. By forming tapered surfaces on both the inner and outer diameter sides and tapering the tip of the first connecting portion 7, the connecting member 1 molded by resin injection molding can be easily removed from the mold.

[0021] Four axially extending slits 10 are formed in the first connecting portion 7, spaced every 90 degrees in the circumferential direction, over the entire axial length. The number of slits 10 can be changed as appropriate. Note that the slits 10 in the first connecting portion 7 may be omitted in some cases.

[0022] The second connecting portion 8 is cylindrical and has a tapered portion 11 formed on its outer diameter side with a tapered surface whose outer diameter increases from the intermediate portion 9 toward the other axial end (left side in FIG. 3 ), a constant diameter portion 12 that is continuous with the maximum diameter portion of the tapered portion 11 in the axial direction and has a cylindrical surface whose outer diameter is constant toward the other axial end, and a tip tapered portion 13 that is continuous with the constant diameter portion 12 and has a tapered surface whose outer diameter decreases toward the other axial end. The formation of the tip tapered portion 13 at the tip of the second connecting portion 8 makes it possible to easily insert the tubular member 4 into the second connecting portion 8. The outer diameter of the second connecting portion 8 is larger at the other axial end (constant diameter portion 12 side) than at the intermediate portion 9 side (tapered portion 11 side).

[0023] The inner diameter side of the tapered portion 11 is a tapered surface. By making both the outer diameter side and inner diameter side of the tapered portion 11 tapered surfaces inclined in the same direction, the radial thickness of the tapered portion 11 is constant in the axial direction. In addition, the inner diameter sides of the constant diameter portion 12 and the tip tapered portion 13 are cylindrical surfaces with a constant inner diameter.

[0024] The second connecting portion 8 is formed with four axially extending slits 14 at 90° intervals in the circumferential direction over the entire axial length so as to be continuous with the slits 10 formed in the first connecting portion 7. The number of slits 14 can be changed as appropriate.

[0025] The intermediate portion 9 is disk-shaped and has a notch 15 formed from the circumferential portion toward the axial center at a position corresponding to the formation positions of the slits 10, 14 formed in the first connecting portion 7 and the second connecting portion 8. The tip of the notch 15 is formed in a semicircular shape. It is also possible to configure the intermediate portion 9 without the notch 15.

[0026] The outer diameter of the intermediate portion 9 is constant in the axial direction. A rounded portion 16 is formed on the inner edge of the connection portion of the intermediate portion 9 with the second connecting portion 8. By forming this rounded portion 16, the second connecting portion 8 can be smoothly deformed toward the inner diameter side when the tubular member 4 is inserted onto the outer diameter side of the second connecting portion 8, and cracks can be prevented from occurring from the inner edge of the connection portion between the intermediate portion 9 and the first connecting portion 7 during this deformation.

[0027] Roughened surface portions 17 are formed by matte finishing on the inner and outer diameter surfaces of the first connecting portion 7 and the second connecting portion 8 and the outer diameter surface of the intermediate portion 9 (see FIG. 3, etc.). The arithmetic mean roughness Ra of the roughened surface portions 17 is preferably in the range of 0.1 μm to 5 μm. If the arithmetic mean roughness Ra of the roughened surface portions 17 is less than 0.1 μm, it becomes difficult to obtain the effect of improving the fixing strength of the adhesive, while if the arithmetic mean roughness Ra is more than 5 μm, the time and cost required to form the roughened surface portions 17 may increase.

[0028] As shown in FIG. 5 , when the outer diameter of the small diameter portion 6 of the rod-shaped member 3 is A, the inner diameter of the tubular member 4 is B, the inner diameter of the first connecting portion 7 of the connecting member 1 is C, the outer diameter of the constant diameter portion 12 of the second connecting portion 8 is D, and the outer diameter of the intermediate portion 9 is E, the dimensional relationship between the various portions will be described below using specific dimensional values ​​as examples.

[0029] The rod-shaped member 3, the tubular member 4, and the connecting member 1 all have tolerances as dimensional errors that occur in the manufacturing process of each part. For example, if the tolerance of the outer diameter A of the small diameter portion 6 is 19.5 mm (minimum diameter) to 20.1 mm (maximum diameter), then the tolerance of the inner diameter C of the first connecting portion 7 (particularly the bottom of the first connecting portion 7) is designed to be 20.1 mm (minimum diameter) to 20.3 mm (maximum diameter) so that the small diameter portion 6 can be smoothly inserted into the first connecting portion 7.

[0030] Furthermore, for example, if the tolerance of the inner diameter B of the tubular member 4 is 22.8 mm (minimum value) to 23.2 mm (maximum value), the tolerance of the outer diameter D of the constant diameter portion 12 of the second connecting portion 8 is designed to be 23.1 mm (minimum value) to 23.3 mm (maximum value), and the tolerance of the outer diameter E of the intermediate portion 9 is designed to be 22.6 mm (minimum value) to 22.8 mm (maximum value).

[0031] When the inner diameter B of the tubular member 4 is approximately the same as the outer diameter D of the constant diameter portion 12 of the second connecting portion 8, the tubular member 4 can be inserted without deforming the second connecting portion 8, as shown in FIG. 6. At this time, the tubular member 4 and the constant diameter portion 12 of the connecting member 1 are in near-surface contact. On the other hand, when the inner diameter B of the tubular member 4 is smaller than the outer diameter D of the constant diameter portion 12 of the second connecting portion 8, the constant diameter portion 12 and the tapered portion 11 are reduced in diameter due to contact between the tubular member 4 and the constant diameter portion 12, as shown in FIG. 7. As a result of this reduction in diameter, the tubular member 4 is in near-surface contact with the tapered portion 11 and the intermediate portion 9. An adhesive (not shown) is applied in advance to the inner and outer diameter sides of the first connecting portion 7 and the outer diameter side of the second connecting portion 8. As the adhesive hardens, the connection between the rod-shaped member 3 and the tubular member 4 via the connecting member 1 is completed.

[0032] A second embodiment of a connecting member 1' according to the present invention is shown in Figures 8 and 9. This connecting member 1' is a member made of ABS resin and has a first connecting portion 7, a second connecting portion 8 axially adjacent to the first connecting portion 7, and an intermediate portion 9 provided between the first connecting portion 7 and the second connecting portion 8. As with the first embodiment, resin materials other than ABS resin or thin-walled metal materials may also be used. The configurations of the second connecting portion 8 and the intermediate portion 9 are the same as those of the connecting member 1 according to the first embodiment, and therefore will not be described here.

[0033] The first connecting portion 7 has a cylindrical shape with a diameter smaller than the outer diameter of the intermediate portion 9. Four axially extending grooves 18 are formed in the first connecting portion 7 at 90° intervals in the circumferential direction over the entire axial length. The circumferential positions of the grooves 18 coincide with the circumferential positions of the slits 14 formed in the second connecting portion 8. The number of grooves 18 can be changed as appropriate. Note that the grooves 18 in the first connecting portion 7 may be omitted in some cases.

[0034] As in the first embodiment, the outer diameter surface of the first connecting portion 7, the inner and outer diameter surfaces of the second connecting portion 8, and the outer diameter surface of the intermediate portion 9 are formed with a rough surface portion 17 by matte finishing (see Figure 9, etc.).

[0035] A connection recess 19 having an inner diameter substantially the same as the outer diameter of the first connection portion 7 of the connection member 1' is formed at the end of the rod-shaped member 3 of the door handle 2 according to the second embodiment. By inserting the first connection portion 7 into the connection recess 19, the rod-shaped member 3 and the connection member 1' are connected.

[0036] In the door handle 2 according to the second embodiment, similarly to the door handle 2 according to the first embodiment, when the inner diameter B of the tubular member 4 is approximately the same as the outer diameter D of the constant diameter portion 12 of the second connecting portion 8, the tubular member 4 is inserted without deforming the second connecting portion 8, as shown in FIG. 10 . At this time, the tubular member 4 and the constant diameter portion 12 of the connecting member 1 are in near-surface contact. On the other hand, when the inner diameter B of the tubular member 4 is smaller than the outer diameter D of the constant diameter portion 12 of the second connecting portion 8, the constant diameter portion 12 and the tapered portion 11 are reduced in diameter due to contact between the tubular member 4 and the constant diameter portion 12, as shown in FIG. 11 . As a result of this reduction in diameter, the tubular member 4 is in near-surface contact with the tapered portion 11 and the intermediate portion 9. An adhesive (not shown) is applied in advance to the outer diameter sides of the first connecting portion 7 and the second connecting portion 8. As the adhesive hardens, the connection between the rod-shaped member 3 and the tubular member 4 via the connecting member 1 is completed.

[0037] In the door handle 2 described above, the connecting members 1, 1′ have a first connecting portion 7, a second connecting portion 8 axially adjacent to the first connecting portion 7, and an intermediate portion 9 provided between the first connecting portion 7 and the second connecting portion 8, and a slit 14 extending in the axial direction is formed in the second connecting portion 8, and the second connecting portion 8 has a portion where the outer diameter is larger at the axial end side than at the intermediate portion 9 side. This eliminates the need to provide a pilot hole for threading a fastening shaft that connects the rod-shaped member 3 and the tubular member 4, or a sleeve for threading the fastening shaft into the tubular member 4, thereby enabling the rod-shaped member 3 and the tubular member 4 to be connected accurately and easily. Moreover, even if the inner diameter of the tubular member 4 is smaller than the outer diameter of the second connecting portion 8, the slit 14 acts to reduce the diameter of the second connecting portion 8, allowing the tubular member 4 to be easily inserted into the second connecting portion 8.

[0038] Furthermore, the second connecting portion 8 is configured to have a tapered portion 11 whose outer diameter increases from the intermediate portion 9 toward the axial end portion, and a constant diameter portion 12 that is continuous with the tapered portion 11 in the axial direction and has a constant outer diameter toward the axial end portion.Therefore, in both cases where the inner diameter of the tubular member 4 is approximately the same as the outer diameter of the constant diameter portion 12, and where the inner diameter of the tubular member 4 is smaller than the outer diameter of the constant diameter portion 12, it is possible to ensure as much surface contact as possible between the tubular member 4 and the connecting member 1, and the connecting member 1 can be securely attached to the tubular member 4.

[0039] Furthermore, the above-mentioned door handle 2 is configured such that a slit 10 extending in the axial direction is formed in the first connection portion 7. Therefore, when inserting a rod-shaped member 3 into the inner diameter of the first connection portion 7, even if the outer diameter of the rod-shaped member 3 is slightly larger than the inner diameter of the first connection portion 7, the slit 10 expands the inner diameter of the first connection portion 7, allowing the rod-shaped member 3 to be inserted.

[0040] Furthermore, when the above-mentioned door handle 2 is fixed with adhesive between the first connection portion 7 and the rod-shaped member 3, the adhesive also flows into the slit 10 or the groove 18, thereby further improving the fixing strength of the adhesive.

[0041] Furthermore, the door handle 2 is configured such that a rough surface portion 17 is formed on at least a portion of the inner and outer diameter surfaces of the first connecting portion 7 and the second connecting portion 8. This increases the surface area of ​​the portion where the rough surface portion 17 is formed, and therefore when the rod-shaped member 3 and the tubular member 4 are fixed to the connecting member 1 with an adhesive, the fixing strength of the adhesive can be further improved.

[0042] Furthermore, the connecting members 1, 1' used in the above-mentioned door handle 2 have a first connecting portion 7, a second connecting portion 8 axially adjacent to the first connecting portion 7, and an intermediate portion 9 provided between the first connecting portion 7 and the second connecting portion 8, and a slit 14 extending in the axial direction is formed in the second connecting portion 8, and the second connecting portion 8 has a portion where the outer diameter is larger on the axial end side than on the intermediate portion 9 side.Therefore, when the first connecting portion 7 and the rod-shaped member 3 are connected and the tubular member 4 is inserted into the outer diameter side of the second connecting portion 8 in the opposite direction to the rod-shaped member 3 to connect the two, even if the inner diameter of the tubular member 4 is smaller than the outer diameter of the second connecting portion 8, the second connecting portion 8 will contract in diameter due to contact between the tubular member 4 and the second connecting portion 8, and this contraction will allow the tubular member 4 to be inserted into the second connecting portion 8.

[0043] The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. Therefore, the scope of the present invention is defined by the claims, not by the above description, and is intended to include the meaning equivalent to the claims and all modifications thereof. [Explanation of symbols]

[0044] 1, 1' connecting member 2 door handles 3 Rod-shaped members 4 Tubular members 5 Main body 6 Small diameter section 7 First connection part 8 Second connection part 9 Middle section 10 slits 11 Tapered section 12 Constant diameter section 13 Tapered tip 14 Slit 15 Cutout 16 Rounding section 17 Rough surface area 18 Groove 19 Connection recess D Door body

Claims

1. The door has a rod-shaped member (3) as a grip bar, a tubular member (4) for fixing the rod-shaped member (3) to the door body (D), and a connecting member (1, 1') for connecting the rod-shaped member (3) and the tubular member (4) in the axial direction, The connecting member (1, 1') has a first connecting portion (7), a second connecting portion (8) adjacent to the first connecting portion (7) in the axial direction, and an intermediate portion (9) provided between the first connecting portion (7) and the second connecting portion (8), The second connecting portion (8) has a slit (14) extending in the axial direction, and has a portion where the outer diameter of the second connecting portion (8) is larger on the axial end side than on the intermediate portion (9) side, The door handle has the first connection portion (7) and the rod-shaped member (3) connected together, and the tubular member (4) is inserted into the outer diameter side of the second connection portion (8) in the opposite direction to the rod-shaped member (3).

2. 2. The door handle according to claim 1, wherein the second connecting portion (8) is formed with a tapered portion (11) whose outer diameter increases from the intermediate portion (9) toward the axial end portion, and a constant diameter portion (12) that is axially continuous with the maximum diameter portion of the tapered portion (11) and has a constant outer diameter toward the axial end portion.

3. 2. The door handle according to claim 1, wherein the first connecting portion (7) is formed with an axially extending slit (10).

4. 2. The door handle according to claim 1, wherein a rough surface portion (17) is formed on at least a part of the inner and outer diameter surfaces of the first connecting portion (7) and the second connecting portion (8).

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