WO2014061179A1 - 自転車用サドル - Google Patents
自転車用サドル Download PDFInfo
- Publication number
- WO2014061179A1 WO2014061179A1 PCT/JP2013/004513 JP2013004513W WO2014061179A1 WO 2014061179 A1 WO2014061179 A1 WO 2014061179A1 JP 2013004513 W JP2013004513 W JP 2013004513W WO 2014061179 A1 WO2014061179 A1 WO 2014061179A1
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- WIPO (PCT)
- Prior art keywords
- synthetic resin
- frame member
- holes
- bicycle saddle
- saddle
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/002—Saddles having a seating area with a central cavity or depression
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/02—Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs
Definitions
- the present invention relates to a bicycle saddle, and more particularly, to a technique for improving flexibility and comfort in a saddle that does not have a cushion pad such as urethane foam and a seat portion is made only of a resin base.
- a well-known bicycle saddle has a base member made of a synthetic resin material having a rigid saddle body, a cushion sheet made of highly flexible urethane or the like laminated on the upper surface thereof, and an upper surface of the cushion sheet. It is comprised from the exterior sheet
- This base member is injection-molded from a rigid synthetic resin material with high rigidity so that it can stably support the load of the user who gets on the vehicle. There was a problem in terms of comfort. Therefore, a cushion sheet having high flexibility is superposed on the upper surface of the base member to provide an appropriate cushioning property, thereby improving comfort.
- the cushion sheet is covered with a thin and soft exterior sheet so as to make use of cushioning properties. Therefore, the cushion sheet is easily damaged when the bicycle falls, and the cushion sheet is exposed. There was a problem.
- the exterior sheet is damaged or the exterior sheet is not sufficiently waterproof, rainwater easily enters the saddle during rainy weather. Furthermore, there is a problem that the saddle body cannot be washed.
- a bicycle saddle which is composed of a synthetic resin base member in which a large number of through holes are formed so that the saddle body can be elastically deformed in accordance with a change in load (Patent Documents 2 and 3). See).
- Patent Documents 2 and 3 a large number of through holes are formed so that the base member can be elastically deformed. Therefore, when a load is applied by the user, the base member receives the load while being gently elastically deformed.
- the saddle body can be provided with an appropriate cushioning property only by the base member, and there is no need to laminate a cushion sheet on the upper surface of the base member as in the past, and even if it gets wet in the rain, the base member Since water can be easily removed just by wiping rain water, there is no discomfort during riding due to the rain water oozing out from the cushion sheet.
- the cushioning property of each part of the base member is adjusted by a combination of the formation position, size, shape, number, etc. of the through holes formed in the base member.
- the base member is molded from a single synthetic resin material, and the balance of the elements of conflicting flexibility / comfort and strength / rigidity can be achieved only by combining the formation position, size, shape, number, etc. of the through holes. It was difficult to take.
- the bicycle saddle disclosed in Patent Document 3 is provided with a flexible shock absorbing material superimposed on the surface of the base member, so that it can be quickly transformed into the shape of the user's buttocks, and the force acting on the buttocks can be buffered. Soft and soft, improving flexibility and comfort.
- the structural strength of the base member is increased by providing a rigidity adjusting material that is superimposed on the surface of the base member or filled in a through hole formed in the base member. Improved strength and rigidity.
- the shock absorbing material and the rigidity adjusting material are provided as a sheet on the whole or a part of the base member, or as a pad filling the through hole of the base member.
- JP-A-8-253180 Japanese Patent Laid-Open No. 2004-217201 JP 2006-7958 A
- an object of the present invention is to provide a bicycle saddle in which a cushioning pad is not used and a seating portion is made of only a resin base, and the balance of flexibility / comfort and strength / rigidity can be balanced.
- the present inventor uses a cushion saddle for a bicycle saddle made only of a resin base and a part that requires flexibility, which is a part that contacts the hips, and a part that suppresses bending of the saddle.
- the purpose is to achieve both flexibility / comfort and strength / rigidity.
- the bicycle saddle of the present invention has a saddle body and a rail member for attaching the saddle body to the bicycle frame, and the saddle body is composed of the following (1) and (2).
- First synthetic resin frame member in which a plurality of through holes are formed (2)
- Second synthetic resin laminated on the upper surface of the frame member and in which a plurality of through holes are formed in a mesh shape Made mesh member
- a saddle main body does not use a buffer pad, but a seating part is produced only by a resin base, and it can balance the contradiction of a softness
- the frame member is a part that suppresses undesirable deformation such as bending and deformation of the saddle body, and is a part that requires strength. This is the portion corresponding to the “frame” in the entire shell-shaped saddle other than the rail.
- the mesh member is a portion that contacts the buttocks and is a portion that requires flexibility. It is a hammock-like part stretched around the frame in the entire shell-like saddle other than the rail.
- the rail member is a portion formed of a hard wire such as metal and fixed to the seat pillar.
- the second synthetic resin of the mesh member is a synthetic resin having lower rigidity than the first synthetic resin of the frame member.
- the second synthetic resin of the mesh member is a synthetic resin selected from nylon, polyethylene, polypropylene, and polycarbonate
- the first synthetic resin of the frame member reinforces the second synthetic resin with glass fiber.
- it is a synthetic resin reinforced with carbon fiber.
- first synthetic resin of the frame member and the second synthetic resin of the mesh member are those in which the first synthetic resin has strength and rigidity, and the second synthetic resin has lower rigidity than the first synthetic resin.
- Any resin may be used.
- the first synthetic resin may be nylon and the second synthetic resin may be polyethylene.
- the frame member and the mesh member are integrally molded using an insert molding technique using a resin material having different hardness as described above, that is, a resin material having high strength and rigidity and a resin material having flexibility.
- Insert molding is generally known as a molding method in which a resin is injected around a metal part inserted into a mold to integrate the metal and the resin. After inserting a pre-molded primary molded product into a mold using different resin materials, resin materials having different hardnesses are injected around it to produce a saddle body which is an integrated molded product.
- the opening area of each through hole formed in the frame member in the bicycle saddle of the present invention is substantially equal to or larger than the opening area of each through hole formed in the mesh member. Since the frame member is formed of a resin material having high rigidity, deformation of the shape such as bending of the shape or deformation of the shape can be suppressed even if the opening area of each through hole formed in the frame member is increased. By increasing the size of the individual through holes formed in the frame member, it is possible to improve the air permeability and reduce the weight.
- the frame member in the bicycle saddle according to the present invention includes a rear seat portion and an elongated front end portion protruding forward from the rear seat portion. And the through-hole which makes a pair on the right and left of a back seat part, and the substantially central through-hole of a front-end part make it 3 times or more larger than the opening area of another through-hole. Further, the through holes are formed in 50% or more of the total area of the frame member. Thereby, improvement of air permeability and weight reduction are realizable.
- the opening area of the through holes of the frame member is 50% or more of the total area, and more preferably 60 to 70% of the total area. Further weight reduction can be realized. In order to maintain the strength and rigidity of the frame member, it is designed not to exceed 70%.
- the through hole of the mesh member is 30 to 50% of the total area.
- the air permeability is improved by setting it to 30% or more.
- by designing so as not to exceed 50% it is possible to stably support the user's load and prevent mud splashed from the ground from adhering to the user's clothing.
- the positions of the two through holes on the left and right sides of the rear seat are the positions where they touch the buttocks most, and by providing a large through hole at that position, most of the buttocks are made with only a highly flexible mesh member. Will be supported. Highly flexible mesh members support the butt meat in a hammock shape, so it can be quickly transformed into the shape of the butt, buffering the force acting on the butt and receiving it softly, and improving flexibility and comfort Can do.
- the position of the through hole at the substantially center of the front end is a position where the user touches a delicate part.
- the delicate part can be formed only by a highly flexible mesh member. I will support it. Since a highly flexible mesh member supports a delicate portion in a hammock shape, the force acting on the delicate portion can be buffered and softly received, and the flexibility and comfort can be further improved.
- the frame member and the mesh member in the bicycle saddle of the present invention both comprise a rear seat portion and an elongated front end portion that projects forward from the rear seat portion, and has an arch shape that draws a gentle curve toward the outer peripheral side.
- the center of the rear seat is recessed, and the outer periphery is substantially the same.
- the shape of the frame member and the mesh member is substantially the same in the outer peripheral shape and the overall shape, so that flexibility can be imparted to all the portions that touch the user's buttocks.
- the color of the resin material of the first synthetic resin of the frame member and the color of the resin material of the second synthetic resin of the mesh member are different. Variations in the design design of the saddle body can increase the customer's willingness to purchase.
- the rail member in the bicycle saddle according to the present invention is a rigid linear member that is fitted to the leg pieces that are connected to the front end and the rear end of the frame member, and the recesses of the leg pieces are shock-absorbing.
- it is made of a flexible material having A layer of a flexible material is formed on the fitting portion between the frame member and the rail member to improve the shock absorption.
- the frame member is a molded product made of a synthetic resin material having at least two types of hardness
- the mesh member is a molded product made of a synthetic resin material having at least two types of hardness.
- the frame member may be a molded product made of a synthetic resin material having at least two types of hardness
- the mesh member may be a molded product made of a synthetic resin material having at least two types of hardness.
- the frame member By making the frame member a molded product made of a synthetic resin material with two or more kinds of hardness, the resin material according to the rigidity required for each part of the frame member is used to stably support the load of the user who gets on the vehicle. Flexibility and comfort can be imparted to the user while maintaining possible strength and rigidity.
- the mesh member a molded product made of a synthetic resin material with two or more kinds of hardness, it is possible to stabilize the load on the user using the resin material according to the flexibility required for each part of the mesh member Flexibility and comfort can be imparted to the user while maintaining the strength and rigidity that can be supported.
- the bicycle saddle that is, the bicycle saddle in which the frame member is a molded product made of a synthetic resin material having at least two types of hardness, or the mesh member is a molded product made of a synthetic resin material having at least two types of hardness, It is preferable that the colors of the synthetic resin materials having different hardnesses are different. Thereby, the variation of the design design of a saddle main body can increase, and a consumer's willingness to purchase can be stimulated.
- the cushioning pad is not used, and the seating portion is made of only the resin base, and there is an effect that the flexibility / comfort and the strength / rigidity can be balanced.
- the bicycle saddle of the present invention does not use a cushion pad and the seating portion is made only of a resin base, so that even if it is exposed to rain, the water does not soak in, and the saddle body can be washed, durability and ventilation It has excellent properties, is resistant to fraying, and has high weather resistance against ultraviolet rays.
- the frame member and the mesh member are integrally molded using an insert molding technique using a resin material having high strength and rigidity and a resin material having flexibility, respectively. The manufacturing time and manufacturing cost of the saddle body are greatly reduced, the weight of the saddle body can be reduced, and the appearance has a unique design.
- FIG. 1 shows an external perspective view of an embodiment of a bicycle saddle according to the present invention.
- the bicycle saddle according to the first embodiment is mainly used for a competition bicycle, and is for a bicycle having a shape having an elongated end in front so as to cope with a change in the center of gravity and a change in driving posture of a user during a competition run.
- Saddle one That is, the overall shape of the bicycle saddle 1 shown in FIG. 1 includes a substantially circular rear seat portion and an elongated front end portion protruding forward from the rear seat portion.
- the frame member 2 is made of glass fiber reinforced nylon
- the mesh member 3 is made of nylon not subjected to fiber reinforcement. Glass fiber reinforced nylon has a greater shear hardness than nylon without fiber reinforcement.
- a plurality of through holes 7 are formed in both the frame member 2 and the mesh member 3.
- the arrangement, shape, and size of the through holes of each member are considerably different.
- the through holes 7 of the mesh member 3 are arranged symmetrically in a mesh shape over substantially the entire region.
- most of the through holes of the frame member 2 have a larger opening area than the through holes of the mesh member 3, and in particular, the through holes (7a, 7b, 7c) are mesh members.
- the opening area is 3 to 4 times larger than the three through holes.
- the through-holes of the frame member 2 are arranged symmetrically over almost the entire area, like the mesh member 3, but the through-holes (7c, 7d) formed at the front end are one symmetrically-shaped holes. is there.
- the frame member and the mesh member in the bicycle saddle according to the first embodiment include a rear seat portion A and an elongated front end portion B protruding forward from the rear seat portion.
- the frame member has a pair of through holes (21, 22) on the left and right sides of the rear seat A and a through hole 23 in the center of the front end B. These three through holes (21, 22, 23) are about 3 to 4 times larger than the opening area of the other through holes.
- a through hole is formed in a region of 60 to 70% of the total area of the frame member.
- the through holes of the mesh member 3 are formed in the rear seat A with rectangular through holes of different sizes concentrically and radially arranged from the center of the rear seat to form a web-like network structure. Yes.
- the front end B is formed with long holes arranged in the longitudinal direction.
- the positions of the two left and right through holes (21, 22) of the rear seat part A are the positions that most touch the user's buttocks, and by providing large through holes (21, 22) at the positions, Most of the buttocks can be supported by the highly flexible mesh member 3 alone.
- the highly flexible mesh member 3 supports the meat of the hips in a hammock shape, so it can be quickly transformed into the shape of the hips, buffering the force acting on the hips and receiving it softly, improving flexibility and comfort .
- the position of the through hole 23 at the center of the front end B is a position where the user touches a delicate portion.
- the delicate mesh member 3 alone is sensitive. Will support this part. Since the highly flexible mesh member 3 supports the delicate portion in a hammock shape, the force acting on the delicate portion is buffered and softly received, thereby improving flexibility and comfort.
- the frame member and the mesh member in the bicycle saddle of Example 1 have an arch shape that draws a gentle curve toward the outer peripheral side as a whole.
- the central portion 20 of the rear seat portion shown in FIG. 3 has a recessed shape so that the elastic deformation of the frame member and the mesh member is facilitated.
- the front end portion 6 of the front end portion and the left and right rear end portions of the rear seat portion are respectively formed with flat portions where no through holes are formed.
- Leg pieces (8, 9) for fitting and holding the pair of rail members 4 project from the back side of the portion.
- the pair of rail members 4 are formed by bending a metal rod, and are inserted into the front leg piece 8 and the rear leg piece 9 and fitted with the leg pieces, as shown in FIG.
- the pair of rail members 4 are held by a fixing member 11 attached to the bicycle frame 10.
- the bicycle saddle of the first embodiment includes a frame member made of a synthetic resin material having a plurality of through holes and a high strength and rigidity, and a plurality of mesh-like layers laminated on the upper surface of the frame member.
- the frame member is provided with strength and rigidity that can stably support the user's load, and the mesh member is boarded.
- the frame member and mesh member are integrally molded using insert molding technology using a resin material having high strength and rigidity and a resin material having flexibility, respectively. Can be greatly reduced. Also, the weight of the bicycle saddle can be reduced.
- the air permeability is high, and problems such as mold and bacteria breeding due to poor ventilation do not occur.
- heat is not easily stored in the saddle body, and the saddle body does not easily get hot even when left outdoors in fine weather.
- the mesh member since the mesh member has through-holes in the entire area, air permeability of the buttocks and thighs that come into contact with the mesh member when riding is ensured, and it is difficult to get wet even when riding in high temperatures in the summer or for a long time.
- the mesh member is formed in a hammock shape, the burden on the user when riding for a long time is small, and the comfort is excellent.
- the color of the synthetic resin material of the frame member was a black smoke color
- the color of the synthetic resin material of the mesh member was a white clear color.
- the frame member of the bicycle saddle according to the first embodiment is formed using a synthetic resin material having two kinds of hardness.
- flexibility and comfort are imparted to the user while maintaining strength and rigidity that can stably support the load of the user who gets on the vehicle.
- the mesh member of the bicycle saddle of Example 1 or Example 2 is formed into a molded product using synthetic resin materials having two kinds of hardness. Using resin materials according to the flexibility required for the front end and rear seat of the mesh member, or by dividing the frame member into parts that are likely to be loaded and difficult to apply when riding The resin material according to the property is used to give the user flexibility and comfort while maintaining strength and rigidity that can stably support the load of the user who gets on the vehicle.
- FIG. 6 shows an external perspective view of the bicycle saddle of the fourth embodiment.
- the overall shape of the bicycle saddle 40 shown in FIG. 6 includes a substantially circular rear seat portion and an elongated front end portion protruding forward from the rear seat portion.
- the bicycle saddle 40 includes a frame member 2 formed of a hard synthetic resin material, a saddle body 5 formed of a mesh member 3 formed of a synthetic resin material softer than the resin material of the frame member 2, and an embodiment (not shown). 1 is composed of a pair of rail members which are attachment members for attaching the saddle body 5 as shown in FIG.
- the frame member 2 is made of glass fiber reinforced nylon
- the mesh member 3 is made of nylon that is not fiber reinforced. Glass fiber reinforced nylon has a greater shear hardness than nylon without fiber reinforcement.
- a plurality of through holes 7 are formed in both the frame member 2 and the mesh member 3.
- the arrangement, shape and size of the through holes of each member are considerably different.
- the through holes 7 of the mesh member 3 are arranged symmetrically in a mesh shape over substantially the entire area.
- most of the through holes of the frame member 2 have a larger opening area than the through holes of the mesh member 3, and the through holes (7 a, 7 b, 7 c) are the through holes of the mesh member 3.
- the opening area is 4-6 times larger than
- the through holes (7a, 7b) are larger than the through holes (7a, 7b) of the first embodiment, and the opening area is about 5 to 6 times that of the through holes of the mesh member 3.
- the through-holes of the frame member 2 are arranged symmetrically over almost the entire area, like the mesh member 3, but the through-holes (7c, 7d) formed at the front end are one symmetrically-shaped holes. is there.
- FIG. 8A is a plan view of the bicycle saddle of the fourth embodiment
- FIG. 8B is a bottom view of the bicycle saddle of the fourth embodiment.
- the frame member has a pair of through holes (21, 22) on the left and right sides of the rear seat part and a through hole 23 in the center of the front end part. These three through holes (21, 22, 23) are about 4 to 6 times larger than the opening area of the other through holes.
- a through hole is formed in a region of 70 to 80% of the total area of the frame member.
- the through holes of the mesh member 3 have rectangular through holes of different sizes arranged concentrically and radially from the center of the rear seat portion in the rear seat portion to form a web-like network structure. .
- long holes are formed in the front end portion in the longitudinal direction.
- the positions of the two through holes (21, 22) on the left and right of the rear seat are the positions that most touch the meat of the user's buttocks, and by providing large through holes (21, 22) at the positions.
- Only the highly flexible mesh member 3 can support most of the buttocks.
- the highly flexible mesh member 3 supports the flesh of the butt in a hammock shape, so it can be quickly transformed into the shape of the butt, buffering the force acting on the butt and receiving it softly, improving flexibility and comfort ing.
- the frame member and the mesh member have an arch shape that gently curves toward the outer periphery as a whole.
- the center part 20 of the rear seat part shown has a concave shape so that elastic deformation of the frame member and the mesh member is facilitated.
- the bicycle saddle of the fourth embodiment has a plurality of through holes formed on a frame member made of a synthetic resin material having high strength and rigidity, and a plurality of through holes in a mesh shape.
- the frame member is provided with strength and rigidity that can stably support the user's load, and the mesh member has an impact when riding It is possible to provide a cushioning property that can absorb the user and softly accept the user, thereby achieving a balance between flexibility / comfort and strength / rigidity.
- the frame member and the mesh member are made of a resin material having high strength and rigidity and a resin material having flexibility, respectively.
- the color of the synthetic resin material of the frame member was a black smoke color
- the color of the synthetic resin material of the mesh member was a white clear color.
- FIG. 9 shows an external perspective view of the bicycle saddle of the fifth embodiment.
- the overall shape of the bicycle saddle 50 shown in FIG. 9 includes a substantially circular rear seat portion and an elongated front end portion protruding forward from the rear seat portion.
- a bicycle saddle 50 includes a frame member 2 formed of a hard synthetic resin material, a saddle body 5 formed of a mesh member 3 formed of a synthetic resin material softer than the resin material of the frame member 2, and an embodiment (not shown). 1 is composed of a pair of rail members which are attachment members for attaching the saddle body 5 as shown in FIG.
- the frame member 2 is made of glass fiber reinforced nylon
- the mesh member 3 is made of nylon that is not fiber reinforced. Glass fiber reinforced nylon has a greater shear hardness than nylon without fiber reinforcement.
- a plurality of through holes 7 are formed in both the frame member 2 and the mesh member 3.
- the arrangement, shape and size of the through holes of each member are considerably different.
- the through-holes 7 of the mesh member 3 are arranged symmetrically in a mesh shape over substantially the entire region.
- most of the through holes of the frame member 2 have a larger opening area than the through holes of the mesh member 3, and the through holes (7 a, 7 b, 7 c, 7 f) pass through the mesh member 3.
- the opening area is 4-6 times larger than the holes.
- the through holes (7a, 7b) are larger than the through holes (7a, 7b) of Example 1 and Example 4, and the opening area is about 6 to 8 times that of the through holes of the mesh member 3.
- the through hole 7f is a through hole in which a plurality of through holes in the same part of the first and fourth embodiments are combined, and the opening area is about 7 to 8 times that of the through hole of the mesh member 3. Is formed.
- the through holes (7c, 7d) formed at the front end are one symmetrical holes.
- FIG. 11A is a plan view of the bicycle saddle of the fifth embodiment
- FIG. 11B is a bottom view of the bicycle saddle of the fifth embodiment.
- the frame member has a pair of through holes (21, 22) on the left and right sides of the rear seat and a through hole 23 in the center of the front end. These three through holes (21, 22, 23) are about 4 to 6 times larger than the opening area of the other through holes.
- a through hole is formed in a region of 70 to 80% of the total area of the frame member.
- the central portion 20 of the rear seat portion is a single through hole in the frame member.
- the central portion 20 of the rear seat has a recessed shape and is characterized by being formed of a mesh member.
- the through holes of the mesh member 3 have rectangular through holes of different sizes arranged concentrically and radially from the center of the rear seat portion in the rear seat portion to form a web-like network structure. .
- long holes are formed in the front end portion in the longitudinal direction.
- the positions of the two through holes (21, 22) on the left and right of the rear seat are the positions that most touch the meat of the user's buttocks, and by providing large through holes (21, 22) at the positions.
- Only the highly flexible mesh member 3 can support most of the buttocks.
- the highly flexible mesh member 3 supports the meat of the hips in a hammock shape, so it can be quickly transformed into the shape of the hips, buffering the force acting on the hips and receiving it softly, improving flexibility and comfort .
- the position of the through hole 23 in the center of the front end is a position where the user touches a delicate portion.
- the mesh member 3 having high flexibility is sensitive. It will support the part. Since the highly flexible mesh member 3 supports the delicate portion in a hammock shape, the force acting on the delicate portion is buffered and softly received to improve flexibility and comfort.
- the frame member and the mesh member have an arch shape that draws a gentle curve toward the outer periphery as a whole.
- the bicycle saddle of the fifth embodiment has a plurality of through holes formed on a frame member made of a synthetic resin material having high strength and rigidity, and a plurality of through holes in a mesh shape.
- the frame member By being composed of a mesh member made of a synthetic resin material with flexibility, the frame member is provided with strength and rigidity that can stably support the user's load, and the mesh member has an impact when riding It is possible to provide a cushioning property that can absorb the user and softly accept the user, thereby achieving a balance between flexibility / comfort and strength / rigidity.
- the frame member and the mesh member are made of a resin material having high strength and rigidity and a resin material having flexibility, respectively. By performing the integral molding using, the manufacturing time and manufacturing cost of the saddle body can be greatly reduced.
- the weight of the entire saddle is reduced by using the frame member to be used as a minimum volume for maintaining the shape.
- the color of the synthetic resin material of the frame member is a black smoke color
- the color of the synthetic resin material of the mesh member is a white clear color. did.
- the bicycle saddle of the present invention is not limited to the above embodiment.
- the through holes in the rear seat portion of the mesh member are arranged so as to have a web-like network structure, but the through holes may be formed irregularly.
- the through-holes may be formed densely in portions where cushioning properties and elastic deformation are required, and sparsely formed in other portions.
- the overall shape of the mesh member is substantially the same as the overall shape of the frame member, but a partial shape of the entire frame member, for example, the front end portion and the rear end portion of the frame member The shape may lack.
- the present invention is useful as a saddle for a racing bicycle or a portable bicycle.
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Abstract
Description
このベース部材は、乗車する利用者の荷重を安定的に支持し得るように高い剛性を有する硬質性合成樹脂材から射出成形されているため、柔軟性に乏しく、着座するとお尻などが痛くなり快適性の面で問題があった。そこで、ベース部材の上面に柔軟性の高いクッションシートを重ね合せて、適度なクッション性を持たせて快適性の向上を図っていた。
上記の自転車用サドルでは、ベース部材が弾性変形し得るように多数の貫通孔が形成されているから、利用者の荷重がかかると、ベース部材は緩やかに弾性変形しながら荷重を受け止める。そのため、ベース部材のみによってサドル本体に適度なクッション性を持たせることができ、従来のようにベース部材の上面にクッションシートを積層する必要がなく、雨天時などに濡れてしまってもベース部材の雨水を拭き取るだけで簡単に水分を除去できるため、従来のようにクッションシートからの雨水の染み出しによる乗車時の不快感がない。また、ベース部材に形成される貫通孔の形成位置や大きさ、形状、個数等の組み合わせによって、ベース部材の各部のクッション性を調節するものである。
しかしながら、単一の合成樹脂材料によってベース部材を成形しており、貫通孔の形成位置や大きさ、形状、個数等の組み合わせだけで、柔軟性・快適性と強度・剛性の相反する要素のバランスをとることは困難であった。
また、特許文献3の自転車用サドルでは、ベース部材の表面に重ね合わされ又はベース部材に形成される貫通孔に充填される剛性調整材を備えることにより、ベース部材の構造強度を増加し、サドル本体の強度・剛性を向上させた。
衝撃吸収材や剛性調整材は、具体的には、ベース部材の全体あるいは一部にシートとして、又は、ベース部材の貫通孔に充填するパッドとして設けられた。
また、ベース部材の表面に重ね合わされ又はベース部材に形成される貫通孔に充填される衝撃吸収材や剛性調整材によって、柔軟性・快適性と強度・剛性のバランスを調整することも実際のところ非常に困難であった。
上記状況に鑑みて、本発明は、緩衝パッドを用いず、着座部が樹脂ベースだけで作製され、柔軟性・快適性と強度・剛性の相反するバランスをとれる自転車用サドルを提供することを目的とする。
試みたデザインは、着座時に直接お尻に触れない枠部に硬い材料を配置し、これによってサドルの撓みや型崩れなどの望ましくない変形を抑制し、お尻に触れる部分には軟らかい材料を配置し、柔軟で快適な乗車感が得られるようにしたものである。“柔軟性を要求される部分”と“強度を要求される部分”のそれぞれにあたる樹脂材料を異なる剛性を有する樹脂材料に分けることによって、サドル本体の形状設計だけでは為しえなかった高いレベルで柔軟性・快適性と強度・剛性を両立させることを目的としたものである。
(1)複数の貫通孔が形成されている第1の合成樹脂製のフレーム部材
(2)フレーム部材の上面に積層される、メッシュ状に複数の貫通孔が形成されている第2の合成樹脂製のメッシュ部材
上記のフレーム部材は、サドル本体の撓みや型崩れなどの望ましくない変形を抑える部分で、強度を要求される部分である。レール以外の、シェル状サドル全体のうち”枠”に相当する部分である。また、メッシュ部材は、お尻に接触する部分で、柔軟性を要求される部分である。レール以外のシェル状サドル全体のうち、枠に張られたハンモック状の部分である。
また、レール部材は、金属など硬質性の線材で形成され、シートピラーに対して固定される部分である。
例えば、第1の合成樹脂がグラスファイバー補強ナイロンで第2の合成樹脂が繊維補強を行っていないナイロンという組合せや、第1の合成樹脂がカーボン補強ナイロンで第2の合成樹脂がポリカーボネートという組合せ等が可能である。
なお、フレーム部材の第1の合成樹脂とメッシュ部材の第2の合成樹脂は、第1の合成樹脂が強度・剛性があり、第2の合成樹脂が第1の合成樹脂よりも剛性の低い合成樹脂であればよく、例えば、第1の合成樹脂がナイロンで第2の合成樹脂がポリエチレンという組合せでも構わない。
インサート成形は、一般的には、金型内に挿入した金属部品の周りに樹脂を注入して金属と樹脂を一体化する成形方法として知られているが、本発明の自転車用サドルでは、硬度の異なる樹脂材を用いて、予め成形した一次成型品を金型に挿入後、その周りに異なる硬度の樹脂材を注入して、一体化した成形品であるサドル本体を作製する。
ここで、フレーム部材の貫通孔の開口面積は、総面積の50%以上、より好ましくは、総面積の60~70%にする。更なる軽量化を実現できる。フレーム部材の強度・剛性を保持すべく、70%を超えないようにデザインする。また、メッシュ部材の貫通孔は、総面積の30~50%にする。30%以上にすることで通気性の向上を図る。また50%を超えないようにデザインすることで、利用者の荷重の安定的な支持と、地面から跳ね上げられた泥が利用者の衣類に付着しないようにする。
フレーム部材とメッシュ部材の形状は、上記のように外周形状や全体形状が略同一とされることにより、利用者のお尻に触れる部分の全てに柔軟性を付与することができる。
フレーム部材とレール部材の嵌合部に、柔軟な材料の層を形成して、衝撃吸収性の向上を図る。
また、フレーム部材が少なくとも2種の硬度の合成樹脂材による成形品であり、かつ、メッシュ部材が、少なくとも2種の硬度の合成樹脂材による成形品であっても構わない。
また、メッシュ部材を2種以上の硬度の合成樹脂材による成形品にすることで、メッシュ部材の各部位に要求される柔軟性に応じた樹脂材を用いて、乗車する利用者の荷重を安定的に支持し得る強度・剛性を保持しつつ、利用者に対して柔軟性・快適性を付与できる。
これにより、サドル本体の意匠デザインのバリエーションが増加し、需要者の購買意欲を喚起させることができる。
また、本発明の自転車用サドルは、緩衝パッドを用いず、着座部が樹脂ベースだけで作製されるため、雨曝しにしても水が浸み込まず、サドル本体を丸洗いでき、耐久性と通気性に優れ、擦り切れに強く、紫外線などに対する対候性が高いといった効果を有する。
さらに、本発明の自転車用サドルは、フレーム部材とメッシュ部材は、それぞれ強度・剛性の高い樹脂材と柔軟性を有する樹脂材とを用いて、インサート成形技術を利用し一体成形を行うことにより、サドル本体の製造時間及び製造費用が大幅に削減されると共に、サドル本体の軽量化が図れ、外観もユニークな意匠性を備えるといった効果を有する。
図1に示す自転車用サドル1は、硬質性の合成樹脂材で形成されたフレーム部材2と、フレーム部材2の樹脂材より柔らかい合成樹脂材で形成されたメッシュ部材3から成るサドル本体5と、サドル本体5を自転車フレーム10に取付けるための取付け部材である一対のレール部材4とから構成されている。
具体的には、フレーム部材2はグラスファイバー補強ナイロンで作製されており、メッシュ部材3は繊維補強を行っていないナイロンで作製されている。グラスファイバー補強ナイロンの方が、繊維補強を行っていないナイロンよりもシェア硬度が大きい。
メッシュ部材3の貫通孔は、後方座部Aには、大きさの異なる矩形状の貫通孔が後方座部の中央から同心状・放射状に配列され、蜘蛛の巣状の網目構造を形成している。また、前方端部Bには長手方向に長孔が並ぶように形成されている。
図8(1),(2)に示すように、フレーム部材は、後方座部の左右にそれぞれ対となる貫通孔(21,22)と、前方端部の中央の貫通孔23を有する。これら3つの貫通孔(21,22,23)は、他の貫通孔の開口面積よりも4~6倍程度大きい。また、フレーム部材の総面積の70~80%の領域に貫通孔が形成されている。
メッシュ部材3の貫通孔は、後方座部には、大きさの異なる矩形状の貫通孔が後方座部の中央から同心状・放射状に配列され、蜘蛛の巣状の網目構造を形成している。また、前方端部には長手方向に長孔が並ぶように形成されている。
また、実施例4の自転車用サドルは、実施例1の自転車用サドルと同様、フレーム部材とメッシュ部材は、それぞれ強度・剛性の高い樹脂材と柔軟性を有する樹脂材を用いて、インサート成形技術を利用して一体成形を行うことで、サドル本体の製造時間及び製造費用が大幅に削減できる。
図11(1),(2)に示すように、フレーム部材は、後方座部の左右にそれぞれ対となる貫通孔(21,22)と、前方端部の中央の貫通孔23を有する。これら3つの貫通孔(21,22,23)は、他の貫通孔の開口面積よりも4~6倍程度大きい。また、フレーム部材の総面積の70~80%の領域に貫通孔が形成されている。
また、後方座部の中央部20は、実施例1,4と異なり、フレーム部材では1つの貫通孔になっている。後方座部の中央部20は、凹んだ形状となっており、メッシュ部材で形成しているという特徴がある。
メッシュ部材3の貫通孔は、後方座部には、大きさの異なる矩形状の貫通孔が後方座部の中央から同心状・放射状に配列され、蜘蛛の巣状の網目構造を形成している。また、前方端部には長手方向に長孔が並ぶように形成されている。
実施例5の自転車用サドルは、上記の通り、複数の貫通孔が形成されている強度・剛性が高い合成樹脂材から成るフレーム部材と、その上面に積層され、メッシュ状に複数の貫通孔が形成されている柔軟性を有する合成樹脂材から成るメッシュ部材で構成されることにより、フレーム部材に利用者の荷重を安定的に支持し得る強度・剛性を備えさせ、メッシュ部材に乗車時の衝撃を吸収し利用者を柔らかく受け止め得るクッション性を備えさせて、柔軟性・快適性と強度・剛性の相反するバランスを図ることができる。
また、実施例5の自転車用サドルは、実施例1の自転車用サドルと同様、フレーム部材とメッシュ部材は、それぞれ強度・剛性の高い樹脂材と柔軟性を有する樹脂材を用いて、インサート成形技術を利用して一体成形を行うことで、サドル本体の製造時間及び製造費用が大幅に削減できる。
実施例5の自転車用サドルでは、使用するフレーム部材を、形状保持のための最小限のボリュームとして、サドル全体の軽量化を実現している。
(1)本発明の自転車用サドルは上記の実施例に限られるものではない。上述の実施例において、メッシュ部材の後方座部の貫通孔は、蜘蛛の巣状の網目構造となるように配列されているが、貫通孔は不規則に形成されるものであっても構わない。また、貫通孔は、クッション性や弾性変形が必要な部分には密に形成させ、他の部分には疎らに形成させるものでも構わない。
2 フレーム部材
3 メッシュ部材
4 レール部材
5 サドル本体
6 前方端部の先端部
7,7a,7b,7c,7d,7e,7f,7g 貫通孔
8 前方脚片
9 後方脚片
10 自転車フレーム
11 固定部材(シートポスト)
20 後方座部の中央部
21,22 後方座部の左右の貫通孔
23 前方端部の中央の貫通孔
A 後方座部
B 前方端部
Claims (10)
- サドル本体と該サドル本体を自転車フレームに取付けるためのレール部材とを有する自転車用サドルにおいて、
前記サドル本体は、複数の貫通孔が形成されている第1の合成樹脂製のフレーム部材と、
前記フレーム部材の上面に積層される、メッシュ状に複数の貫通孔が形成されている第2の合成樹脂製のメッシュ部材と、から成ることを特徴とする自転車用サドル。 - 第2の合成樹脂は、第1の合成樹脂よりも剛性の低い合成樹脂材であることを特徴とする請求項1に記載の自転車用サドル。
- 前記フレーム部材に形成される個々の貫通孔の開口面積は、前記メッシュ部材に形成される個々の貫通孔の開口面積と略同等乃至大きいことを特徴とする請求項1又は2に記載の自転車用サドル。
- 前記フレーム部材は、後方座部と該後方座部から前方に突出する細長い前方端部から成り、
前記後方座部の左右にそれぞれ対となる貫通孔と、前記前方端部の略中央の貫通孔とが、他の貫通孔の開口面積よりも3倍以上大きく、
前記フレーム部材の総面積の50%以上に貫通孔が形成されていることを特徴とする請求項1~3のいずれかに記載の自転車用サドル。 - 前記フレーム部材と前記メッシュ部材は、共に、後方座部と該後方座部から前方に突出する細長い前方端部から成り、外周側に向かって緩やかな曲線を描くアーチ状で、前記後方座部の中央が凹んだ形状であり、外周が略同一であることを特徴とする請求項1~4のいずれかに記載の自転車用サドル。
- 第1の合成樹脂の樹脂材の色と、第2の合成樹脂の樹脂材の色彩が、異なることを特徴とする請求項1~5のいずれかに記載の自転車用サドル。
- 前記レール部材は、前記フレーム部材の前端及び後端に連設される脚片に嵌合される硬質性線状部材であり、
前記脚片の凹み部は、衝撃吸収性を有する柔軟な素材から成ることを特徴とする請求項1~6のいずれかに記載の自転車用サドル。 - 前記メッシュ部材の第2の合成樹脂は、ナイロン、ポリエチレン、ポリプロピレン、ポリカーボネートから選択される合成樹脂であり、前記フレーム部材の第1の合成樹脂は、第2の合成樹脂をグラスファイバー補強もしくはカーボン繊維補強した合成樹脂であることを特徴とする請求項1~7のいずれかに記載の自転車用サドル。
- 前記フレーム部材が少なくとも2種の硬度の合成樹脂材による成形品であり、
或いは、
前記メッシュ部材が少なくとも2種の硬度の合成樹脂材による成形品である、
ことを特徴とする請求項1~7のいずれかに記載の自転車用サドル。 - 硬度の異なる合成樹脂材の色彩が、それぞれ異なることを特徴とする請求項9に記載の自転車用サドル。
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US7997645B2 (en) | 2009-03-23 | 2011-08-16 | Peng-Yu Tseng | Holding assembly for a seat of a bicycle |
IT1395790B1 (it) | 2009-09-21 | 2012-10-19 | Bigolin | Struttura di sella ventilata. |
ITMO20120187A1 (it) | 2012-07-24 | 2014-01-25 | Velo Europ S R L | Sella per bicicletta. |
USD692245S1 (en) | 2012-09-04 | 2013-10-29 | Fuselage Design Pty Ltd | Bike seat |
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2013
- 2013-07-24 JP JP2014541907A patent/JP5682084B2/ja not_active Expired - Fee Related
- 2013-07-24 CA CA2886928A patent/CA2886928C/en not_active Expired - Fee Related
- 2013-07-24 WO PCT/JP2013/004513 patent/WO2014061179A1/ja active Application Filing
- 2013-07-24 EP EP13847617.1A patent/EP2910458A4/en not_active Withdrawn
- 2013-07-24 CN CN201380046399.0A patent/CN104619580A/zh active Pending
- 2013-07-24 US US14/417,844 patent/US9446808B2/en active Active
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JPH08253180A (ja) | 1995-03-15 | 1996-10-01 | Marui:Kk | 自転車用サドル |
JP2000016364A (ja) * | 1998-06-26 | 2000-01-18 | Ogk Giken Kk | サドル |
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See also references of EP2910458A4 |
Also Published As
Publication number | Publication date |
---|---|
CA2886928A1 (en) | 2014-04-24 |
EP2910458A1 (en) | 2015-08-26 |
EP2910458A4 (en) | 2016-06-15 |
US9446808B2 (en) | 2016-09-20 |
JP5682084B2 (ja) | 2015-03-11 |
JPWO2014061179A1 (ja) | 2016-09-05 |
CN104619580A (zh) | 2015-05-13 |
CA2886928C (en) | 2018-01-30 |
US20150210333A1 (en) | 2015-07-30 |
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