CN110816732B - Frame structure and scooter type motorcycle - Google Patents
Frame structure and scooter type motorcycle Download PDFInfo
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- CN110816732B CN110816732B CN201910738518.8A CN201910738518A CN110816732B CN 110816732 B CN110816732 B CN 110816732B CN 201910738518 A CN201910738518 A CN 201910738518A CN 110816732 B CN110816732 B CN 110816732B
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- frame
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- members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/10—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for rear wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
- B62M7/04—Motorcycles characterised by position of motor or engine with engine between front and rear wheels below the frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
A frame structure and a scooter type motorcycle, in which the rigidity of a vehicle body frame is improved to obtain steering stability. A frame structure of a scooter type motorcycle having a foot placing space formed in front of a seat is characterized by comprising: a pair of lower frame members (13) extending in the front-rear direction of the vehicle on the lower side of the footwell; a pair of rear frame members (15) rising from the lower frame member behind the footwell; a pair of support frame members (18) rising from the lower frame member behind the rear frame member; and a pair of pivot brackets (31) which connect the swing arms through support shafts and can swing up and down, wherein the pivot brackets are erected on the rear frame component and the supporting frame component.
Description
Technical Field
The invention relates to a frame structure and a scooter.
Background
Conventionally, a small motorcycle has been known in which a leg shield and pedals form a pedal space in front of a seat (see, for example, patent document 1). The rear part of the body frame of this scooter type motorcycle has a pair of right and left rear frame members rising from the rear part of the pedals toward the rider seat, and pivot brackets welded to the respective rear frame members connect the swing arms via support shafts so as to be swingable up and down. An electric motor is incorporated in the swing arm, and a rear wheel driven by the electric motor is supported on the rear side of the swing arm.
Documents of the prior art
Patent document
Patent document 1: international publication No. 2011/033613
Problems to be solved by the invention
However, in the scooter type motorcycle described in patent document 1, the front edge of the pivot bracket is welded to each rear frame member, and the support rigidity of the swing arm at the pivot bracket of the suspension arm is low, and there is a problem that good steering stability cannot be obtained.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a frame structure and a scooter type motorcycle capable of improving rigidity of a frame as a whole and obtaining steering stability.
Means for solving the problems
A frame structure according to an aspect of the present invention is a frame structure of a scooter type motorcycle having a footrest space formed in front of a seat, the frame structure including: a lower frame member having a pair and extending in a front-rear direction of the vehicle at a lower side of the footwell; a rear frame member having a pair and rising from the lower frame member behind the footwell; a pair of support frame members rising from the lower frame member behind the rear frame member; and a pair of pivot brackets that are provided with a pair of pivot brackets and that connect the swing arms to be swingable up and down via support shafts, the pivot brackets being mounted on the rear frame member and the support frame member.
Effects of the invention
According to the frame structure of one aspect of the present invention, since the pivot bracket is supported by the rear frame member and the support frame member in a double column manner, the support rigidity of the swing arm by the pivot bracket can be increased, and good steering stability can be obtained. Since the rear frame member and the support frame member are coupled in the front-rear direction by the pivot bracket, the rigidity of the rear frame member and the support frame member is improved. Further, the cross-sectional area of the frame can be reduced by the amount of improvement in rigidity of the entire frame structure, and a space can be secured between the frames.
Drawings
Fig. 1 is a perspective view of the scooter of the present embodiment with an exterior member removed.
Fig. 2 is a perspective view of the frame structure of the present embodiment as viewed obliquely from the front.
Fig. 3 is a perspective view of the frame structure of the present embodiment as viewed from below.
Fig. 4 is a plan view of the frame structure of the present embodiment.
Description of the symbols
1: small-sized motorcycle
10: vehicle body frame
13: lower frame member
15: rear frame member
18: supporting frame part
21: reinforced frame
22: front and rear frame parts
23: left and right frame parts
27: upper bracket
28: lower bracket
31: pivot bracket
32: channel section
51: battery unit
52: electric power unit
55: swing arm
56: rear cushion unit
Detailed Description
The present embodiment is described in detail below with reference to the drawings. Fig. 1 is a perspective view of the scooter of the present embodiment with an exterior member removed. In the following drawings, the vehicle front is indicated by an arrow FR, the vehicle rear is indicated by an arrow RE, the vehicle left side is indicated by L, and the vehicle right side is indicated by R.
As shown in fig. 1, the scooter type motorcycle 1 has a vehicle body frame 10 of a bottom skeleton type, a head pipe 11 is provided at a front end portion of the vehicle body frame 10, and the head pipe 11 is inserted into a steering shaft 41. The front frame 12 extends downward from the head pipe 11, and a pair of lower frame members 13 constituting a lower frame extend rearward from a lower portion of the front frame 12. A pair of rear frame members 15 constituting the rear frame are erected diagonally rearward from intermediate positions of the pair of lower frame members 13, a pair of support frame members 18 constituting the support frame are erected diagonally rearward from rear end positions of the pair of lower frame members 13, and upper ends of the pair of support frame members 18 are connected to the pair of rear frame members 15.
The steering shaft 41 is supported by the head pipe 11 of the vehicle body frame 10 so as to be steerable, a handlebar 42 is provided on an upper portion of the steering shaft 41, and a front wheel 44 is supported on a lower portion of the steering shaft 41 via a pair of front forks 43. A saddle 46 and a sub-seat 47 are connected to the upper portions of the pair of rear frame members 15, and an installation space surrounded by the pair of rear frame members 15 and the pair of support frame members 18 is formed below the saddle 46. This installation space is vertically partitioned by a reinforcing frame 21, and the reinforcing frame 21 connects the pair of rear frame members 15 and the pair of support frame members 18 in the horizontal direction.
A battery unit 51 is provided above the installation space, and an electric power unit 52 is provided below the installation space. An inverter unit 53 that converts dc power of the battery unit 51 into ac power is provided between the pair of lower frame members in front of the electric power unit 52. The battery unit 51 and the electric power unit 52, which are heavy objects, are disposed below the saddle 46, thereby achieving steering stability. Further, by bringing the inverter unit 53 close to the battery unit 51, the high voltage line from the battery unit 51 to the inverter unit 53 is shortened, and wiring is facilitated.
The pair of rear frame members 15 and the pair of support frame members 18 are connected in the front-rear direction by a pair of pivot brackets 31, respectively. The swing arm 55 is coupled to the pair of pivot brackets 31 so as to be swingable in the vertical direction, and a rear cushion unit 56 is mounted between the vehicle body frame 10 and the swing arm 55. The swing arm 55 is provided with a chain cover 57 that houses a rear sprocket (not shown) and a chain (not shown), and the driving force of the electric power unit 52 is transmitted to the rear wheel 58 via the rear sprocket and the chain.
In a typical scooter type motorcycle, a unit swing type in which an electric power unit is swingable on a body frame together with a rear wheel is adopted. The unit swing type makes it difficult to provide a support frame behind the rear frame in layout. Therefore, the strength and rigidity of the rear frame are ensured by increasing the cross-sectional area of the rear frame member (pipe) constituting the rear frame, and the swing arm is supported by a pivot bracket provided at the rear frame in a cantilever manner. The support rigidity of the swing arm is low only by the pivot bracket of the suspension arm, and good steering stability of the scooter cannot be obtained.
In the present embodiment, the electric power unit 52 is mounted on the vehicle body frame 10 side in place of the unit swing type, the pair of lower frame members 13 are extended long rearward, and the pair of support frame members 18 can be provided rearward of the pair of rear frame members 15. Further, the pivot bracket 31 is bridged between the rear frame member 15 and the support frame member 18, and the rigidity of the rear frame member 15 and the support frame member 18 is improved. Further, by coupling the swing arm 55 to the pivot bracket 31 of the double column type, the support rigidity of the swing arm 55 can be secured, and good steering stability can be obtained.
Hereinafter, a frame structure of a scooter type motorcycle will be described with reference to fig. 2 to 4. Fig. 2 is a perspective view of the frame structure of the present embodiment as viewed obliquely from the front. Fig. 3 is a perspective view of the frame structure of the present embodiment as viewed from below. Fig. 4 is a plan view of the frame structure of the present embodiment. Note that fig. 2 to 4 omit the structure other than the electric power unit for the convenience of description.
As shown in fig. 2 to 4, the vehicle body frame 10 is a frame structure in which a footwell for a driver is formed in front of a seat, and the pair of lower frame members 13 extend rearward from a lower portion of the front frame 12 so as to pass under the footwell. The pair of lower frame members 13 are connected by a plurality of bridges 14 to constitute a lower frame, and the rigidity of the pair of lower frame members 13 in the vehicle width direction is increased by the bridges 14. The footwell space indicates a space surrounded by a body cover (not shown) below the seat, a leg shield (not shown), and pedals (not shown) and in which both feet of the driver are placed on the vehicle body.
The pair of lower frame members 13 extend in the front-rear direction of the vehicle, and the pair of rear frame members 15 stand from the pair of lower frame members 13 behind the footwell. The pair of rear frame members 15 rise obliquely rearward from the lower frame member 13, and are partially bent so that the inclination is gentle in the middle of the extending direction. The rear frame is configured by connecting the pair of rear frame members 15 by the plurality of bridge members 16, and the rigidity of the pair of rear frame members 15 in the vehicle width direction is increased by the bridge members 16. A reinforcing member 17 having a triangular shape in side view is provided at the lower ends of the pair of rear frame members 15, increasing the joint area of the rear frame members 15 and the lower frame member 13.
Further, behind the pair of rear frame members 15, a pair of support frame members 18 stand from the pair of lower frame members 13. The pair of support frame members 18 rise obliquely rearward from the rear end positions of the pair of lower frame members 13, and are engaged with the rear sides of the bent portions of the pair of rear frame members 15. The upper ends of the pair of support frame members 18 are engaged with the lower surfaces of the pair of rear frame members 15 from the lower side, and the seat load is supported by the pair of rear frame members 15 and the pair of support frame members 18 together. A rear cushion bracket 19 having a rhombus shape in side view is provided at the joint portion of the rear frame member 15 and the support frame member 18, increasing the joint area of the rear frame member 15 and the support frame member 18.
The rear cushion bracket 19 is coupled to the swing arm 55 via a rear cushion unit 56 (fig. 1). At this time, the push-up load is applied to the rear cushion bracket 19 by the rear cushion unit 56, and the push-up load applied to the rear cushion bracket 19 is dispersed to the rear frame member 15 and the support frame member 18. A pair of pivot brackets 31 are respectively bridged between the pair of rear frame members 15 and the pair of support frame members 18. The rigidity is increased by connecting the rear frame member 15 and the support frame member 18 in the front-rear direction by the pivot bracket 31.
The pivot bracket 31 has a groove 32 having a square U-shape in cross section, and the rigidity is improved by intersecting the extending direction of the groove 32 with the extending direction of the rear frame member 15 and the support frame member 18. A pivot hole 33 is formed in the bottom surface of the groove portion 32, and the pivot hole 33 couples a swing arm 55 (see fig. 1) to be swingable up and down via a support shaft. The front end of the pivot bracket 31 engages the rear surface of the rear frame member 15 and the rear end of the pivot bracket 31 engages the front surface of the support frame member 18. In this case, the upper side of the rear end of the pivot bracket 31 is expanded rearward, and the stress concentration acting on the upper side of the rear end of the pivot bracket 31 is relaxed.
As described above, since the pivot bracket 31 is supported in a double-column manner by the rear frame member 15 and the support frame member 18, the pivot bracket 31 itself is formed in a shape that is difficult to deform, and therefore, the support rigidity of the swing arm 55 is improved, and the steering stability is improved. The rear side of the vehicle body frame 10 is a support structure in which four frames of the rear frame member 15 and the support frame member 18 are used as support columns, but it is difficult to ensure torsional rigidity only with the four frames. In the present embodiment, the reinforcing frame 21 integrally connects the pair of rear frame members 15 and the pair of support frame members 18 to increase the rigidity.
The reinforcement frame 21 is formed in a rectangular frame shape by a pair of front and rear frame portions 22 extending in the front-rear direction of the vehicle and a pair of left and right frame portions 23 extending in the vehicle width direction. Support brackets 25 are provided at the same height position on the pair of rear frame members 15 and the pair of support frame members 18, respectively, and the reinforcing frame 21 is fixed to the support brackets 25 at four locations. The pair of rear frame members 15 and the pair of support frame members 18 are integrally connected by the rectangular frame-shaped reinforcing frame 21, and the rigidity in the front-rear direction and the left-right direction of the rear frame members 15 and the support frame members 18 is improved, and the torsional rigidity is improved.
In the vehicle body frame 10, an installation space surrounded by the rear frame member 15 and the support frame member 18 is partitioned vertically by the reinforcement frame 21. The upper side of the installation space is an installation space for the battery unit 51 (see fig. 1), and the battery unit 51 is placed on the rectangular frame-shaped upper surface of the reinforcing frame 21. The reinforcing frame 21 has a frame size corresponding to the width and depth of the battery cell 51, and supports the lower surface of the battery cell 51 along the entire circumference by the reinforcing frame 21. In this way, the reinforcing frame 21 not only ensures the rigidity of the rear frame member 15 and the support frame member 18, but also functions as a mounting surface for the battery unit 51.
The lower side of the installation space is an installation space for the electric power unit 52, and the electric power unit 52 is mounted on the reinforcing frame 21 and the bridge 14 constituting the lower frame. The left and right frame portions 23 on the front side of the reinforcing frame 21 are provided with upper brackets 27 that support the upper portion of the electric power unit 52, and the bridge 14 of the lower frame is provided with lower brackets 28 that support the lower portion of the electric power unit 52. By supporting the electric power unit 52 on the upper bracket 27 and the lower bracket 28, the rigidity of the entire body frame 10 is increased by the electric power unit 52.
A battery unit 51 is placed on the upper surface of the reinforcing frame 21, and an electric power unit 52 is supported on the lower portion of the reinforcing frame 21. Therefore, by disposing the battery unit 51 and the electric power unit 52 as heavy objects vertically, the steering stability can be obtained by mass concentration. The reinforcing frame 21 is detachably connected to the pair of rear frame members 15 and the pair of support brackets 25 that support the frame members 18. Therefore, the electric power unit 52 can be easily attached to and detached from the vehicle body frame 10 by attaching and detaching the reinforcement frame 21.
In this way, the rear frame member 15 and the support frame member 18 are erected from the lower frame member 13, and the respective frame members are integrated by the reinforcement frame 21, whereby the rigidity of the rear side of the vehicle body frame 10 is ensured. Further, the pivot bracket 31 is bridged between the rear frame member 15 and the support frame member 18, and the pivot bracket 31 functions as a bridge between the rear frame member 15 and the support frame member 18, thereby improving rigidity. This makes it possible to reduce the cross-sectional area of each frame member by the amount of increased rigidity, and to secure a wide installation space for various units and the like inside the frame.
As described above, according to the present embodiment, since the pivot bracket 31 is supported in a double-column manner by the rear frame member 15 and the support frame member 18, the support rigidity of the swing arm 55 by the pivot bracket 31 can be increased, and good steering stability can be obtained. Since the rear frame member 15 and the support frame member 18 are coupled in the front-rear direction by the pivot bracket 31, the rigidity of the rear frame member 15 and the support frame member 18 is improved. Further, the cross-sectional area of the frame member can be reduced by the amount of improvement in rigidity of the entire frame structure, and a space can be secured between the frames.
In the present embodiment, the support frame member constituting the support frame is formed separately from the lower frame member constituting the lower frame, but is not limited to this configuration. The support frame member may be integrally formed with the lower frame member by bending a rear portion of the lower frame member upward.
In the present embodiment, the groove-shaped portion of the pivot bracket is configured to protrude inward in the vehicle width direction, but the present invention is not limited to this configuration. The groove portion of the pivot bracket may also protrude outward in the vehicle width direction. The pivot bracket is formed with a groove portion having a square U-shape in cross section, but the cross section of the pivot bracket is not particularly limited thereto. The notch portion may not be formed in the pivot bracket as long as sufficient rigidity can be ensured.
In the present embodiment, the reinforcing frame is formed in a rectangular frame shape, but the present invention is not limited to this structure. The reinforcing frame may be configured to integrally connect the pair of rear frame members and the pair of support frame members.
In the present embodiment, the pair of lower frame members and the pair of rear frame members are coupled to each other by the bridge members to form the lower frame and the rear frame, but the pair of support frame members may be coupled to each other by the bridge members to form the support frame. This can further improve the rigidity of the vehicle body frame.
In the present embodiment, the reinforcing frame is detachably coupled to the pair of rear frame members and the pair of support frame members, but the present invention is not limited to this configuration. The reinforcing frame may be integrally joined to the pair of rear frame members and the pair of support frame members.
In the present embodiment, the electric power unit and the battery unit are disposed vertically, but the present invention is not limited to this configuration. The positional relationship between the electric power unit and the battery unit is not particularly limited, and for example, the battery unit may be provided in front of the electric power unit.
In the present embodiment, the description is given by taking an electric motorcycle as an example, but the present invention is not limited to this configuration. The frame structure of the present invention can be applied to a scooter type motorcycle, and can also be applied to a motorcycle driven by a drive source other than an electric power unit.
Although this embodiment has been described, the above embodiments and modifications may be combined in whole or in part as another embodiment.
The technique of the present invention is not limited to the above-described embodiments, and various changes, substitutions, and alterations can be made without departing from the spirit of the technical idea. The present invention can also be implemented by using this method if the technical idea can be realized in another manner by a technical advance or a derivative other technique. Therefore, the scope of the claims covers all embodiments that can be included in the scope of the technical idea.
Hereinafter, features of the embodiments of the present invention are arranged.
The frame structure according to the above embodiment is a frame structure of a scooter type motorcycle having a footrest space formed in front of a seat, the frame structure including: a lower frame member having a pair and extending in a front-rear direction of the vehicle at a lower side of the footwell; a rear frame member having a pair and rising from the lower frame member behind the footwell; a support frame member having a pair and rising from the lower frame member behind the rear frame member; and a pair of pivot brackets which are connected to the swing arm via a support shaft so as to be swingable up and down, the pivot brackets being mounted on the rear frame member and the support frame member.
According to this configuration, the pivot bracket is supported in a double-column manner by the rear frame member and the support frame member, and therefore, the support rigidity of the swing arm by the pivot bracket can be increased, and excellent steering stability can be obtained. Since the rear frame member and the support frame member are coupled to each other in the front-rear direction by the pivot bracket, the rigidity of the rear frame member and the support frame member is improved. Further, the cross-sectional area of the frame member can be reduced by the amount of improvement in rigidity of the entire frame structure, and a space can be secured between the frames. The frame structure described in the above embodiment includes a reinforcing frame integrally connecting the pair of rear frame members and the pair of support frame members. According to this structure, the reinforcing frame integrates the pair of rear frame members and the pair of support frame members, thereby making it possible to improve the rigidity of the entire frame structure.
In the frame structure described in the above embodiment, the reinforcing frame is formed in a rectangular frame shape by the pair of front and rear frame portions extending in the front-rear direction of the vehicle and the pair of left and right frame portions extending in the vehicle width direction. According to this structure, the torsional rigidity of the entire frame structure can be improved by the rectangular frame-shaped reinforcing frame.
In the frame structure according to the above-described embodiment, the upper side of the reinforcing frame is a space for placing the battery unit, and the lower side of the reinforcing frame is a space for installing the electric power unit. According to this configuration, the battery unit and the electric power unit, which are heavy objects, are arranged vertically, so that the handling stability can be obtained by mass concentration.
In the frame structure according to the above-described embodiment, the reinforcing frame is detachably connected to the pair of rear frame members and the pair of support frame members. According to this structure, the attachment and detachment of the electric power unit can be facilitated by attaching and detaching the reinforcing frame.
In the frame structure according to the above-described embodiment, the reinforcing frame is provided with the bridge member connected between the pair of lower frame members, the upper bracket that supports the upper portion of the electric power unit is provided on the reinforcing frame, and the lower bracket that supports the lower portion of the electric power unit is provided on the bridge member. According to this configuration, the electric power unit is supported by the upper bracket and the lower bracket, whereby the rigidity of the entire frame structure can be improved by the electric power unit.
In the frame structure described in the above embodiment, the upper end of the support frame member is joined to a middle portion of the rear frame member in the extending direction, and the connecting portion between the rear frame member and the support frame member is joined to the swing arm by the rear cushion unit. According to this structure, the push-up load from the rear cushion unit can be dispersed to the rear frame member and the support frame member.
In the frame structure according to the above-described embodiment, the pivot bracket has a groove portion having a square U-shape in cross section. According to this structure, the rigidity of the pivot bracket is improved, and more excellent steering stability can be obtained.
The scooter-type motorcycle according to the above embodiment is characterized by having the above-described frame structure. According to this structure, the steering stability of the scooter can be improved by improving the rigidity of the frame structure.
Claims (6)
1. A frame structure of a scooter type motorcycle having a foot placement space formed in front of a seat, the frame structure comprising:
a lower frame member having a pair and extending in a front-rear direction of the vehicle at a lower side of the footwell;
a rear frame member having a pair and rising from the lower frame member behind the footwell;
a pair of support frame members rising from the lower frame member behind the rear frame member;
a pair of pivot brackets which are connected to each other by a support shaft so as to be swingable up and down;
a reinforcing frame integrally connecting the pair of rear frame members and the pair of support frame members; and
a bridge joined between a pair of the lower frame members,
the pivot bracket is erected on the rear frame member and the support frame member,
an upper bracket for supporting an upper portion of the electric power unit is provided to the reinforcing frame, a lower bracket for supporting a lower portion of the electric power unit is provided to the bridge member,
the pivot bracket has a U-shaped channel section that is square in cross-section,
the extending direction of the groove-shaped part is made to cross the extending direction of the rear frame member and the supporting frame member,
the groove portion protrudes inward or outward in the vehicle width direction.
2. The frame construction of claim 1,
the reinforcement frame is formed in a rectangular frame shape by a pair of front and rear frame portions extending in a front-rear direction of the vehicle and a pair of left and right frame portions extending in a vehicle width direction.
3. The frame construction according to claim 1 or 2,
the battery unit is arranged above the reinforcing frame, and the electric power unit is arranged below the reinforcing frame.
4. The frame construction according to claim 1 or 2,
the reinforcing frame is detachably connected to the pair of rear frame members and the pair of support frame members.
5. The frame construction according to claim 1 or 2,
the upper end of the support frame member is joined to a middle portion of the rear frame member in the extending direction,
the joint portion of the rear frame member and the support frame member is joined to the swing arm by a rear cushion unit.
6. A scooter type motorcycle is characterized in that,
a frame structure according to any one of claims 1 to 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-152274 | 2018-08-13 | ||
| JP2018152274A JP7155738B2 (en) | 2018-08-13 | 2018-08-13 | Frame structure and scooter type motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110816732A CN110816732A (en) | 2020-02-21 |
| CN110816732B true CN110816732B (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910738518.8A Active CN110816732B (en) | 2018-08-13 | 2019-08-12 | Frame structure and scooter type motorcycle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7155738B2 (en) |
| CN (1) | CN110816732B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7375662B2 (en) * | 2020-04-16 | 2023-11-08 | スズキ株式会社 | Storage structure for saddle type vehicles |
| CN113968299A (en) * | 2020-07-22 | 2022-01-25 | Tvs电机股份有限公司 | Frame structure for two-wheeled vehicle |
| WO2024058269A1 (en) * | 2022-09-16 | 2024-03-21 | 本田技研工業株式会社 | Scooter-type electric vehicle |
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| CN206679155U (en) * | 2017-01-19 | 2017-11-28 | 江苏爱玛车业科技有限公司 | Chain stay fixed plate and battery case and vehicle frame afterwards |
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| JP4820207B2 (en) * | 2005-08-31 | 2011-11-24 | 本田技研工業株式会社 | Scooter type vehicle power unit suspension system |
| JP2013209040A (en) * | 2012-03-30 | 2013-10-10 | Honda Motor Co Ltd | Electric low floor type vehicle |
| CN206456484U (en) * | 2016-12-30 | 2017-09-01 | 上海方宇工业设计有限公司 | A kind of built-in motor mounting structure |
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- 2018-08-13 JP JP2018152274A patent/JP7155738B2/en active Active
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| CN2232884Y (en) * | 1995-09-11 | 1996-08-14 | 施纯智 | Body of motorcycle |
| JP2005186814A (en) * | 2003-12-25 | 2005-07-14 | Yamaha Motor Co Ltd | Electric vehicle |
| CN1923610A (en) * | 2005-08-31 | 2007-03-07 | 本田技研工业株式会社 | Power unit suspension gear for minitype motorcycle type vehicle |
| CN104192249A (en) * | 2014-07-31 | 2014-12-10 | 芜湖富仕达机械有限公司 | Tube plate combined type electric car frame structure. |
| CN205087091U (en) * | 2015-11-02 | 2016-03-16 | 五羊—本田摩托（广州）有限公司 | Battery -operated motor cycle and electronic trail bike's battery installation mechanism |
| CN205168758U (en) * | 2015-11-18 | 2016-04-20 | 江门鼎林车架有限公司 | Electric vehicle frame |
| CN206679155U (en) * | 2017-01-19 | 2017-11-28 | 江苏爱玛车业科技有限公司 | Chain stay fixed plate and battery case and vehicle frame afterwards |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020026227A (en) | 2020-02-20 |
| CN110816732A (en) | 2020-02-21 |
| JP7155738B2 (en) | 2022-10-19 |
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