JP5798779B2 - Bicycle infant seat - Google Patents

Description

  The present invention relates to an infant seat for bicycles that is adapted to be attached to the handle of a bicycle.

  The infant seat for bicycles has a seat body having a seat part and a backrest part, and a seat support part provided at the front part of the seat body. The seat support part is hooked on the handlebar of the bicycle from above. A pair of left and right hooks, and a fastening means that is positioned below the pair of hooks and fastened to the handlebar stem of the bicycle. The seat support portion is interposed between the pair of hooks and the fastening means. Are attached to the handle of a bicycle (for example, Patent Documents 1 and 2).

In this type of conventional infant seat for bicycles, the position where the handlebar of the bicycle is hooked by the left and right hooks can be adjusted forward and backward, but the left and right hooks are fixed to the seat support and can be adjusted up and down. (For example, Patent Document 1).
In addition, there are other conventional infant seats for bicycles in which the left and right hooks can be adjusted up and down with respect to the seat body. In this case, the left and right hooks have an infant handle and step support legs. The entire seat support portion is integrated and can be adjusted up and down with respect to the seat body (for example, Patent Document 2).

Japanese Patent Laying-Open No. 2005-067422 Japanese Utility Model Publication No. 38-22533

  Accordingly, in the former conventional case, the left and right hooks cannot be adjusted up and down with respect to the seat support part. Therefore, since foreign bicycles have various handlebar shapes, In such a case, if the left and right hooks are hooked on the handlebar, the fastening means will be positioned on the upper side of the handle stem, and the infant seat for bicycles The bicycle infant seat has a high center of gravity, and the center of gravity of the bicycle seat becomes high, causing a problem that it is unstablely attached to the bicycle handle.

In the latter conventional case, when the pair of left and right hooks are adjusted up and down, the infant handle and step support legs are adjusted up and down together with the pair of left and right hooks. On the other hand, there was a problem that the height of the handle for the infant and the step support leg was not suitable.
In view of the above-described problems, the present invention provides a bicycle infant seat that can be stably mounted at a low position with respect to the bicycle handle while the height of the handle for the infant and the step support leg is adapted to the infant. The purpose is to provide.

Specific means for solving the problems in the present invention are as follows.
The technical means of the present invention for solving this technical problem includes a seat body 4 having a seat portion 2 and a backrest portion 3, and a seat support portion 6 provided at the front portion of the seat body 4. The seat support 6 is provided with a pair of left and right hooks 35 to be hooked on the handlebar 33 of the bicycle, and fastening means 36 positioned below the pair of hooks 35 and fastened to the handlebar stem 38 of the bicycle. And a bicycle infant seat for attaching the seat support portion 6 to the bicycle handle 37 via the pair of hooks 35 and the fastening means 36,
The pair of left and right hooks 35 are attached to the seat support 6 so that it can be adjusted up and down and adjusted back and forth ,
A fastening means storage recess 20 for storing the fastening means 36 is provided in the seat support portion 6, and the fastening means storage recess 20 has an upper wall 21 and a front wall 22 protruding downward from the front end of the upper wall 21. A stem insertion recess 24 is formed in the upper wall 21 of the fastening means storage recess 20 so as to be inserted rearward, and an opening window 25 through which a part of the fastening means 36 can project is provided on the front wall 22 .

Another technical means of the present invention includes a seat body 4 having a seat portion 2 and a backrest portion 3, and a seat support portion 6 provided at the front portion of the seat body 4. The part 6 is provided with a pair of left and right hooks 35 to be hooked on the bicycle handlebar 33 and fastening means 36 positioned below the pair of hooks 35 and fastened to the bicycle handle stem 38. A bicycle infant seat in which the seat support 6 is attached to the bicycle handle 37 via the pair of hooks 35 and the fastening means 36;
The pair of left and right hooks 35 are attached to the seat support 6 so that it can be adjusted up and down and adjusted back and forth,
The fastening means 36 includes a first clamping body 63 and a second clamping body 64 that clamp the handle stem 38, and the first clamping body 63 is fixed to the seat support portion 6 and is clamped to the first clamping body 63. A fitting recess 68 for fitting the body 64 is formed, a first engagement recess 69 for engaging the handle stem 38 is formed at the center of the fitting recess 68, and the second sandwiching body 64 is formed in the fitting recess 68. A second engagement recess 70 is formed on the first sandwiching body 63 side of the second sandwiching body 64 so as to engage and disengage with the first sandwiching body 63, so that the handle stem 38 is engaged. The body 63 and the second sandwiching body 64 are in a point that they are fastened and fixed with the handle stem 38 interposed therebetween .

  According to another technical means of the present invention, the fastening means 36 includes a first clamping body 63 and a second clamping body 64 that clamp the handle stem 38, and the first clamping body 63 is attached to the seat support portion 6. A fitting recess 68 for fitting the second sandwiching body 64 to the first sandwiching body 63 is formed, and a first engagement recess 69 for engaging the handle stem 38 is formed at the center of the fitting recess 68. The second sandwiching body 64 is fitted in the fitting recess 68 so as to be movable toward and away from the first sandwiching body 63, and the second sandwiching body 64 is engaged with the handle stem 38 on the first sandwiching body 63 side. The two engaging recesses 70 are formed, and the first sandwiching body 63 and the second sandwiching body 64 are fastened and fixed with the handle stem 38 interposed therebetween.

Further, according to another technical means of the present invention, the fitting ridge 73 is formed on one of both inner wall surfaces of the fitting recess 68 of the first holding body 63 or both sides of the second holding body 64 facing the inner wall surface. On the other side, a fitting groove 74 is provided, and the fitting protrusion 73 and the fitting groove 74 so that the second holding body 64 is movable toward and away from the first holding body 63. Is in the point of being fitted.
Further, according to another technical means of the present invention, an attachment member 41 is provided between the seat support 6 and the pair of left and right hooks 35 and is fixed to the seat support 6 so as to be vertically adjustable. Each of the hooks 35 includes a hook part 51 bent in a hook shape and a mounting part 52 protruding rearward from the hook part 51, and a hook attachment part 43 is projected forward from the attachment member 41. An engagement rail 48 that engages and holds the mounting portion 52 movably back and forth is formed on the mounting portion 43, and the mounting portion 52 is engaged and held on the engagement rail 48, and is fastened and fixed to the hook attachment portion 43 so that the front and rear adjustment is possible. It is in the point which was made to do.

  According to another technical means of the present invention, a pair of left and right support rods 29 are provided on the seat support portion 6, and a pair of left and right mounting members 41 are provided corresponding to the left and right support rods 29. The attachment member 41 has a holding and fixing part 42 for holding the support rod 29 and the hooking tool attaching part 43 to which the hooking tool 35 is attached, and the hooking tool attaching part 43 is formed from both the left and right sides of the holding and fixing part 42. A pair of left and right hook attachment pieces 45 projecting forward are provided, the mounting portion 52 is provided with a pair of left and right clamping pieces 56, and both left and right sides of the attachment member 41 extending between the holding and fixing portion 42 and the pair of hook attachment pieces 45. An engagement rail 48 for engaging and holding the pair of sandwiching pieces 56 movably back and forth is formed, and the pair of sandwiching pieces 56 are engaged and retained by the engagement rail 48 to form a pair of sandwiching pieces 56 and a pair of hooks. By tightening the mounting piece 45, the holding and fixing portion 4 Is fixed to the support rod 29 so that it can be adjusted up and down, and a pair of hooks 35 are fastened and fixed to the hook attachment parts 43 via a pair of holding pieces 56 so as to be adjustable in the front-rear direction. .

  Further, according to another technical means of the present invention, a locking gear 80 having a plurality of locking teeth 79 is provided in the vertical direction on the front surface of the seat support portion 6, and the mounting member 41 includes a fixing portion 82 and the fixing portion 82. The engaging claw 84 has a pair of left and right hook attachment portions 43 projecting forward from both left and right ends of the engaging portion, and engages and disengages between the engaging teeth 79 of the engaging gear 80 on the back surface of the fixing portion 82. The fixing portion 82 is fastened and fixed to the seat support portion 6 with the engaging claw 84 engaged between any of the locking teeth 79.

  According to the present invention, the pair of left and right hooks are attached to the seat support part so as to be vertically adjustable and can be adjusted in the front-rear direction. By moving the tool upward and downward relative to the seat support, the infant handle for the bicycle and the step support leg height can be adjusted for the infant while the infant seat for the bicycle is positioned lower than the handle of the bicycle. Can be mounted stably.

It is the sectional view on the AA line of FIG. 2 which shows 1st Embodiment of this invention. It is a perspective view of the seat support part. It is an exploded view of the CC line cross section of FIG. It is CC sectional view taken on the line of FIG. FIG. 2 is an exploded view taken along the line DD of FIG. 1. It is the DD sectional view taken on the line of FIG. It is the BB sectional view taken on the line of FIG. It is a front view of the hook and attachment member. It is a front view of the back clamping body and the front clamping body. It is a perspective view of the infant seat for bicycles. It is a side view of the infant seat for bicycles. It is a disassembled perspective view of the seat support part which shows 2nd Embodiment. It is a disassembled perspective view of the seat support part seen from the back side. It is a disassembled perspective view of the hook and attachment member. It is the EE sectional view taken on the line of FIG. It is a disassembled perspective view which shows the modification of a hooking tool and an attachment member. It is a disassembled perspective view which shows the other modification of a hooking tool and an attachment member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 11 show a first embodiment. 10 and 11, the bicycle infant seat 1 includes a seat body 4 having a seat portion 2 and a backrest portion 3, and a headrest 5 is provided above the backrest portion 3 of the seat body 4 so as to be adjustable in height. A seat support 6 is provided at the front of the seat body 4. In the seat body 4, the seat portion 2 and the backrest portion 3 are integrally formed of synthetic resin or the like, and the headrest 5 and the seat support portion 6 are respectively formed of synthetic resin or the like.

A handle 9 for an infant is projected upward at the upper portion of the seat support portion 6, and a pair of left and right step support legs 10 are projected downward at the left and right sides of the lower portion, and between the step support legs 10 at the lower portion of the seat support portion 6. As shown in FIG. 1, a mounting body 11 protrudes rearward, and the seat support portion 6 is attached to the seat portion 2 of the seat body 4 via the mounting body 11 so as to protrude forward.
In FIGS. 1 and 2, an immersion recess 15 that is recessed backward is formed in the center portion in the left-right direction of the seat support portion 6, and a pair of left and right fitting grooves 16 are provided on both the left and right sides of the upper portion of the immersion recess 15. A pair of left and right mounting recesses 17 are provided below 15 fitting grooves 16 on both left and right sides. A pair of left and right insertion holes 19 corresponding to the left and right fitting grooves 16 are provided in the upper and lower middle portions of the seat support portion 6, and a fastening means storage recess recessed in the rear of the fastening means 36 in the lower portion of the seat support portion 6. 20 is provided. The fastening means housing recess 20 includes an upper wall 21 projecting forward, a front wall 22 projecting downward from a front end portion of the upper wall 21, and a pair of left and right side walls 23. A stem insertion recess 24 is formed in the upper wall 21 of the fastening means storage recess 20 in the rearward direction, and an opening window 25 is provided in the left and right center of the front wall 22.

  A pair of left and right support rods 29 are provided on the seat support 6 in the vertical direction. The upper portions of the left and right support rods 29 are fitted and held in the fitting grooves 16 of the seat support portion 6, and the lower middle portions of the left and right support rods 29 are inserted into the insertion holes 19 of the seat support portion 6 so as to protrude downward. It is fixed to the seat support 6 by a fixing tool 30 such as a screw. The lower portions of the left and right support rods 29 protrude downward into the fastening means storage recess 20.

  The seat support 6 is provided with a pair of left and right hooks 35 that are hooked on the handlebar 33 of the bicycle from above, and a fastening means that is positioned below the pair of hooks 35 and fastened to the handlebar stem 38 of the bicycle. 36 is provided, and the seat support 6 is attached to the bicycle handle 37 through the pair of hooks 35 and the fastening means 36. Here, the bicycle handle 37 includes a handle bar 33 and a handle stem 38.

  In FIG. 1 to FIG. 9, an attachment member 41 is provided between the seat support 6 and the pair of left and right hooks 35 and is fixed to the seat support 6 so as to be adjustable up and down. A pair of left and right mounting members 41 are provided corresponding to the left and right support rods 29. Each attachment member 41 has a C-shaped holding fixing portion 42 that holds the support rod 29 and a hook attachment portion 43 to which the hook 35 is attached.

The hook attachment part 43 includes a pair of left and right hook attachment parts 45 protruding forward from the left and right sides of the holding and fixing part 42. The left and right hook attachment pieces 45 are provided with left and right attachment holes 46 corresponding to each other. Engagement rails 48 that are U-shaped in front view are formed on the left and right sides of the attachment member 41 that spans the holding and fixing portion 42 and the pair of hook attachment pieces 45.
Each of the pair of hooks 35 has a hook part 51 bent in a hook shape upward and a mounting part 52 protruding backward from the hook part 51. A screw hole 53 is formed at the front end of the hook portion 51, and as shown in FIG. 1, a set screw 54 or the like is screwed here to prevent the hook 35 hooked on the handle bar 33 from being detached. To get. The mounting portion 52 includes a pair of left and right sandwiching pieces 56 protruding rearward from the left and right sides of the rear lower portion of the hook portion 51. A plurality (three in the illustrated example) of mounting holes 57 are provided at intervals in the front-rear direction so as to correspond to the left and right clamping pieces 56.

  The left and right clamping pieces 56 (mounting portions 52) are engaged and held by the engagement rails 48 so as to be movable back and forth, and the left and right clamping pieces 56 are hooked by the fasteners 59 such as bolts and nuts inserted into the mounting holes 46 and 57. The mounting portion 43 is fastened and fixed so as to be adjustable in the front-rear direction. That is, one of the plurality of mounting holes 57 of the left and right clamping pieces 56 is made to coincide with the mounting hole 46 of the left and right hooking tool mounting pieces 45, and the left and right clamping pieces 56 and the hooking tool mounting parts 43 are fastened and fixed by the fasteners 59. Yes. As a result, the holding and fixing portion 42 is held and fixed to the support rod 29 so as to be vertically adjustable, and the pair of hooking tools 35 are respectively attached to the hooking device mounting portions 43 via the pair of holding pieces 56 (mounting portions 52). The left and right hooks 35 are attached to the seat support portion 6 so as to be adjustable in the vertical direction and adjustable in the longitudinal direction.

  The fastening means 36 has a rear clamping body (first clamping body) 63 and a front clamping body (second clamping body) 64 that clamp the handle stem 38 back and forth. Circular fitting holes 66 are formed on both the left and right sides of the rear clamping body 63 from the upper end to the lower part, and the rear clamping body 63 is formed at the lower part of the left and right support rods 29 via the pair of left and right fitting holes 66. By being externally fitted, it is internally fitted and fixed in the fastening means storage recess 20 of the seat support 6.

  The rear holding body 63 is formed with a fitting recess 68 for fitting the front holding body 64 on the front side of the left and right center portion thereof, and is engaged with the rear portion of the handle stem 38 from the rear side at the left and right center portion of the fitting recess 68. An engagement recess (first engagement recess) 69 is formed, and the front clamping body 64 is fitted to the fitting recess 68 so as to be movable back and forth from the front side (movable toward and away from the rear clamping body 63). A front engagement recess (second engagement recess) 70 for engaging the front portion of the handle stem 38 is formed on the rear side of the center portion.

The rear clamping body 63 and the front clamping body 64 are fastened back and forth by a plurality of fasteners 71 such as four bolts and nuts (four in the illustrated example) with the handle stem 38 sandwiched in the front and rear, and are inserted into the fastening means housing recess 20. It is stored. And the front clamping body 64 which is a part of the fastening means 36 can project forward from the opening window 25, so that the rear clamping body within the fastening means storage recess 20 even when the handle stem 38 has a large diameter. The handle stem 38 can be sandwiched back and forth between 63 and the front clamping body 64.

  The front and rear fitting ridges 73 are provided on the left and right inner wall surfaces of the fitting recess 68 of the rear clamping body 63, and the front and rear fitting ridges 74 are provided on the left and right sides of the front clamping body 64. 73 and the fitting recess 74 are fitted so as to be movable back and forth (so that the second holding body 64 can move toward and away from the first holding body 63). Note that the fitting recesses 74 may be provided on the left and right inner wall surfaces of the fitting recess 68 of the rear clamping body 63, and the fitting projections 73 may be provided on both the left and right sides of the front clamping body 64.

  According to the first embodiment, when the bicycle infant seat 1 is mounted on the bicycle handle 37, for example, the handle stem 38 is sandwiched between the rear clamping body 63 and the front clamping body 64 in the front-rear direction and these are fastened by the fastener 71. To fasten and fix to the lower side of the handle stem 38. In addition, the left and right support rods 29 are fixed to the seat support portion 6 by the fixture 30 in a state where the holding and fixing portions 42 of the left and right attachment members 41 are respectively fitted on the left and right support rods 29. Then, with the bicycle infant seat 1 lifted and the recessed recess 15 and the stem insertion recess 24 of the seat support portion 6 are fitted on the handlebar stem 38 of the bicycle, the bicycle infant seat 1 is lowered and held rearward. The body 63 and the front clamping body 64 are fitted into the fastening means housing recess 20 from the lower side, and the rear clamping body 63 is fitted to the lower part of the support rod 29 via the fitting hole 66 to The clamping body 63 is fixed to the fastening means storage recess 20 of the seat support 6.

  Thereafter, the left and right hooks 35 are adjusted to the handle bar 33 in the front-rear direction and fixed to the hook attachment part 43 of the attachment member 41 by the fasteners 59, and the right and left attachment members are slightly loosened. While moving 41 up and down with respect to the support rod 29, the hook portion 51 of the left and right hook 35 is hooked on the handle bar 33 from above, and the fastener 59 is tightened in this state. As a result, the pair of hooks 35 can be hooked on the handle bar 33 from above, the bicycle handle stem 38 can be fastened by the fastening means 36, and the seat support 6 can be easily attached to the bicycle handle 37.

  At this time, since the pair of left and right hooks 35 are attached to the seat support portion 6 so as to be vertically adjustable, when the portion of the handle bar 33 on which the hook 35 is hooked is at a high position, the left and right hooks 35 Is adjusted to move upward with respect to the seat support portion 6 so that the height of the handle 9 for the infant and the step support leg 10 is adjusted to the height of the infant while the infant seat 1 for a bicycle is attached to the handle 37 of the bicycle. On the other hand, it can be stably mounted at a low position.

  The fastening means 36 has a front and rear clamping body 63 that clamps the handle stem 38 back and forth, and the rear clamping body 63 is formed with a fitting recess 68 that fits the front clamping body 64 on the front side of the left and right central portion thereof. A rear engagement recess 69 that is engaged with the rear portion of the handle stem 38 from the rear side is formed at the left and right center of the engagement recess 68, and the front clamping body 64 is fitted to the engagement recess 68 so as to be movable back and forth from the front side. Since the front engagement recess 70 for engaging the front portion of the handle stem 38 is provided on the rear side of the left and right central portions, the rear portion of the handle stem 38 is engaged by the rear engagement recess 69 and the front portion of the handle stem 38 is moved forward. The handle stem 38 can be clamped forward and backward by the rear clamping body 63 and the front clamping body 64 in the state of being engaged by the engagement recess 70, and can be easily and firmly fastened back and forth by the fastener 71, and the fastening means 36 With handle stem 3 It is possible to reliably sandwich the back and forth.

  In addition, a fitting protrusion 73 in the front-rear direction is provided on one of the left and right inner wall surfaces of the fitting recess 68 of the rear holding body 63 or the left and right sides of the front holding body 64, and on the other side, the fitting protrusion 73 moves back and forth. Since the front and rear fitting recesses 74 that are freely fitted are provided, when the handle stem 38 is clamped forward and backward by the rear clamping body 63 and the front clamping body 64, the rear clamping body 63 is fixed. On the other hand, the front clamping body 64 can be smoothly moved back and forth so as not to rattle up and down and left and right, and the handle stem 38 can be easily and satisfactorily clamped back and forth between the rear clamping body 63 and the front clamping body 64. Can do.

  Each of the pair of hooks 35 includes a hook part 51 bent in a hook shape and a mounting part 52 protruding rearward from the hook part 51, and the mounting parts 52 can be moved back and forth on the left and right sides of the pair of attachment members 41. Since the engaging rail 48 that engages and holds is formed, the mounting portion 52 is smoothly adjusted back and forth with respect to the hook mounting portion 43 so that the hooking device 35 is rattled vertically and horizontally with respect to the mounting member 41. The fastener 59 can be easily and securely tightened and fixed so as not to stick.

In addition, a pair of left and right support rods 29 are provided on the seat support portion 6, and a pair of left and right mounting members 41 are provided corresponding to the left and right support rods 29, and each mounting member 41 holds the support rod 29. Since the fixing part 42 and the hooking tool mounting part 43 to which the hooking tool 35 is attached are provided, the pair of mounting members 41 to the pair of hooking tools 35 can be easily and arbitrarily heightened by loosening the fastener 59. The vertical adjustment of the left and right hook 35 can be easily performed.

Further, by tightening the fastener 59, the holding and fixing part 42 is held and fixed to the support rod 29, and the pair of hooking tools 35 are moved back and forth via the pair of holding pieces 56 on each hooking tool mounting part 43. Since it is tightened and fixed in an adjustable manner, the fixing of the mounting member 41 to the support rod 29 and the fixing of the hooking tool 35 to the mounting member 41 can be easily performed simultaneously.
12 to 15 show a second embodiment. 12 to 15, the seat support portion 6 is provided with one mounting recess 17 having a large lateral width and vertical width, and the fastening means storage recess 20 is provided below the mounting recess 17 (lower portion of the seat support portion 6). It has been. As in the case of the first embodiment, the fastening means housing recess 20 is provided with an upper wall 21 projecting forward, a front wall 22 projecting downward from the front end of the upper wall 21, and a pair of left and right side walls 23. A stem insertion recess 24 is formed in the upper wall 21 so as to be immersed rearward, and an opening window 25 is provided at the center of the front wall 22 of the fastening means storage recess 20.

  A pair of left and right vertical holes 77 are provided on the left and right sides of the bottom wall 17 a of the mounting recess 17. A pair of left and right locking gears 80 having a plurality of locking teeth 79 are provided on the left and right sides of each elongated hole 77 on the front surface of the bottom wall 17a of the mounting recess 17 (the front surface of the seat support 6). . The locking teeth 79 are formed in a triangular shape or a tapered arc shape in a side view, and the locking gear 80 is formed in a continuous sawtooth shape or a waveform.

  One attachment member 41 is provided between the seat support 6 and the pair of hooks 35, and the attachment member 41 is a fixed part 82 and a pair of left and right hook attachment parts protruding forward from both left and right ends of the fixed part 82. 43 in a U shape in plan view. A pair of left and right attachment holes 83 corresponding to the pair of left and right elongated holes 77 are provided in the fixing portion 82, and a pair of left and right engagement claws 84 are provided on the left and right sides of each attachment hole 83 on the back surface of the fixing portion 82. Yes. The engaging claws 84 are formed in a triangular shape or a tapered arc shape in a side view corresponding to the locking teeth 79, and the pair of engaging claws 84 are freely detachable between the locking teeth 79 of the pair of locking gears 80. Engage with.

  A pair of left and right nut members 87 having mounting plate pieces 86 are inserted and held in T-shaped storage grooves 88 formed in the left and right ends of the fixing portion 82, and have the nut members 87 and the long holes 77 and The fixing portion 82 is fastened and fixed to the seat support portion 6 in a state where the engaging claw 84 is engaged between any of the locking teeth 79 by a pair of fasteners 90 inserted through the mounting holes 83. Yes.

The fastening means 36 includes front and rear clamping bodies 64 and 63 that clamp the handle stem 38 back and forth. The rear clamping body 63 is fastened and fixed to the front wall 22 by a fastener 92, thereby fastening the seat support portion 6. It is fitted and fixed in the storage recess 20.
The other points are the same as those in the first embodiment.
According to the second embodiment, by loosening the pair of fasteners 90, the left and right engagement claws 84 of the mounting member 41 can be engaged and disengaged between the engagement teeth 79 of the left and right engagement gear 80, The fastener 90 and the attachment member 41 can be moved up and down with respect to the long hole 77 or the seat support 6. Accordingly, as in the case of the first embodiment, since the pair of left and right hooking tools 35 can be adjusted up and down with respect to the seat support portion 6, the portion of the handle bar 33 that hooks the hooking tools 35 is at a high position. In this case, by moving and adjusting the left and right hooks 35 upward with respect to the seat support portion 6, the height of the handle 9 and the step support leg 10 for the infant is adapted to the infant, and the infant for bicycles is used. The seat 1 can be stably mounted at a low position with respect to the handle 37 of the bicycle.

In the second embodiment, a pair of left and right engaging gears 80 are provided on the left and right sides of the long hole 77 on the front surface of the seat support portion 6. One or two or more may be provided on the front surface of the seat support portion 6 so as to be largely separated from the long hole 77. A plurality of attachment holes may be provided in the vertical direction instead of the long holes 77.
FIG. 16 shows a modification of the mounting member 41 and the pair of hooks 35 in the second embodiment. The pair of left and right hooking tool mounting portions 43 of the mounting member 41 leave the lower left and right sides and the left and right sides and the upper side. The engagement rail 48 is formed in a U-shape when viewed from the front. The pair of left and right hooks 35 includes a hook part 51 bent in a hook shape toward the front and a mounting part 52 protruding rearward from the hook part 51. The mounting part 52 includes a pair of left and right holding pieces 56 and a right and left holding piece. The connection piece 94 which connects 56 upper end parts is provided in U shape. The left and right holding pieces 56 are formed with longitudinal holes 96 corresponding to the attachment holes 46 of the hook attaching portion 43, and the right and left holding pieces are fastened by fasteners (not shown) inserted through the attachment holes 46 and the long holes 96. 56 is fastened and fixed to the hook attaching portion 43. The other points are the same as those in the second embodiment.

  FIG. 17 shows another modified example of the mounting member 41 and the pair of hooks 35 in the second embodiment. The engagement rail 48 is omitted from the pair of left and right hooking tools mounting portions 43 of the mounting member 41 and the front end portion thereof is omitted. A mounting hole 46 is provided. The pair of left and right hooks 35 includes a hook part 51 bent in a hook shape upward and a mounting part 52 protruding rearward from the hook part 51, and the mounting part 52 is formed from both left and right sides of the lower part of the hook part 51. A pair of left and right sandwiching pieces 56 projecting rearward is provided. One mounting hole 57 corresponding to the mounting hole 46 is provided at the rear part of the left and right clamping pieces 56, and the hooking tool 35 can be swingably adjusted around the fastener by a fastener (not shown) inserted through the mounting holes 46, 57. It is configured to be fastened and fixed to the hook attaching portion 43 (adjustable in the longitudinal direction). The other points are the same as those in the second embodiment.

In the case of the first embodiment and the second embodiment, a plurality of mounting holes 57 are formed in the pair of sandwiching pieces 56, but instead of this, the pair of mounting portions 52 are formed in the pair of mounting portions 52 as shown by chain lines in FIG. A long hole 96 in the front-rear direction may be formed.
In the first and second embodiments, the fastening means 36 includes a first clamping body 63 and a second clamping body 64 that clamp the handle stem 38 back and forth, and the first clamping body 63 and the second clamping body. The handle stem 38 is clamped and fixed between the body 64 and the front and rear, but instead, the handle stem 38 is clamped and fixed between the first and second clamping bodies 63 and 64. It may be. In this case, when the diameter of the handle stem 38 is large, a part of the first clamping body 63 or a part of the first clamping body 63 and the second clamping body 64 may be allowed to protrude forward from the opening window 25. The fastening means 36 may be fastened by fitting or holding the handle stem 38.

DESCRIPTION OF SYMBOLS 1 Bicycle infant seat 2 Seat 3 Backrest part 4 Seat main body 6 Seat support part 20 Fastening means accommodation recessed part 29 Support rod 33 Handle bar 35 Hook 36 Fastening means 37 Bicycle handle 38 Handle stem 41 Attachment member 42 Holding fixing part 43 Hooking tool mounting part 45 Hooking tool mounting piece 48 Engagement rail 51 Hooking piece 52 Mounting part 56 Clamping piece 59 Fastening tool 63 Rear clamping body (first clamping body)
64 Front clamping body (second clamping body)
68 Fitting recess 69 Rear engagement recess (first engagement recess)
70 Front engagement recess (second engagement recess)
73 fitting protrusion 74 fitting recess 77 long hole 79 locking tooth 80 locking gear 82 fixing portion 83 mounting hole 84 engaging claw 90 fastener

Claims (7)

A seat body (4) having a seat portion (2) and a backrest portion (3); and a seat support portion (6) provided at a front portion of the seat body (4). 6) is provided with a pair of left and right hooks (35) to be hooked on the handlebar (33) of the bicycle, and is positioned below the pair of hooks (35) and fastened to the handlebar stem (38) of the bicycle. For a bicycle provided with a fastening means (36) to be attached to the handle (37) of the bicycle via the pair of hooks (35) and the fastening means (36). An infant seat,
The pair of left and right hooks (35) are attached to the seat support (6) so that it can be adjusted up and down and can be adjusted back and forth .
The seat support portion (6) is provided with a fastening means storage recess (20) for storing the fastening means (36), and the fastening means storage recess (20) is provided on the upper wall (21) and the front end of the upper wall (21). And a stem insertion recess (24) recessed rearwardly on the upper wall (21) of the fastening means storage recess (20), and fastened to the front wall (22). An infant seat for bicycles, wherein an opening window (25) through which a part of the means (36) can project is provided . A seat body (4) having a seat portion (2) and a backrest portion (3); and a seat support portion (6) provided at a front portion of the seat body (4). 6) is provided with a pair of left and right hooks (35) to be hooked on the handlebar (33) of the bicycle, and is positioned below the pair of hooks (35) and fastened to the handlebar stem (38) of the bicycle. For a bicycle provided with a fastening means (36) to be attached to the handle (37) of the bicycle via the pair of hooks (35) and the fastening means (36). An infant seat,
The pair of left and right hooks (35) are attached to the seat support (6) so that it can be adjusted up and down and can be adjusted back and forth.
The fastening means (36) has a first clamping body (63) and a second clamping body (64) for clamping the handle stem (38), and the first clamping body (63) is attached to the seat support (6). A fitting recess (68) is formed in which the second clamping body (64) is fitted to the first clamping body (63), and the handle stem (38) is engaged with the center of the fitting recess (68). A first engaging recess (69) is formed, and the second holding body (64) is fitted in the fitting recess (68) so as to be movable toward and away from the first holding body (63).
A second engaging recess (70) for engaging the handle stem (38) is formed on the first holding body (63) side of the second holding body (64), and the first holding body (63) and the second holding body (63) are formed. The infant seat for bicycles, characterized in that the sandwiching body (64) is fastened and fixed with a handle stem (38) interposed therebetween . The fastening means (36) has a first clamping body (63) and a second clamping body (64) for clamping the handle stem (38), and the first clamping body (63) is attached to the seat support (6). A fitting recess (68) is formed in which the second clamping body (64) is fitted to the first clamping body (63), and the handle stem (38) is engaged with the center of the fitting recess (68). A first engaging recess (69) is formed, and the second sandwiching body (64) is fitted into the fitting recess (68) so as to be movable toward and away from the first sandwiching body (63). A second engaging recess (70) for engaging the handle stem (38) is formed on the first holding body (63) side of the body (64), and the first holding body (63) and the second holding body (64). The infant seat for bicycles according to claim 1 , characterized in that it is fastened and fixed with a handle stem (38) interposed therebetween. A fitting protrusion (73) is provided on one of both inner wall surfaces of the fitting recess (68) of the first holding member (63) or both sides of the second holding member (64) facing the inner wall surface, and the other. Are provided with a fitting recess (74), and the second holding body (64) is fitted to the fitting protrusion (73) so as to be movable toward and away from the first holding body (63). The infant seat for bicycles according to claim 2 or 3 , wherein the recess (74) is fitted.   Between the seat support portion (6) and the pair of left and right hooks (35), an attachment member (41) fixed to the seat support portion (6) so as to be adjustable in the vertical direction is provided. (35) has a hook part (51) bent in a hook shape and a mounting part (52) protruding rearward from the hook part (51), and the hook attachment part (43) is forward of the attachment member (41). An engaging rail (48) is formed on the hook attachment portion (43) so as to engage and hold the mounting portion (52) so as to be movable back and forth, and the mounting portion (52) is engaged with the engaging rail (48). The infant seat for bicycles according to any one of claims 1 to 4, wherein the infant seat is fixed to the hook attachment portion (43) so as to be adjustable in the longitudinal direction.   A pair of left and right support rods (29) are provided on the seat support portion (6), and a pair of left and right mounting members (41) are provided corresponding to the left and right support rods (29). ) Has a holding and fixing portion (42) for holding the support rod (29) and the hook attachment portion (43) to which the hook (35) is attached, and the hook attachment portion (43) is a hug. A pair of left and right hook attachment pieces (45) projecting forward from the left and right sides of the holding and fixing part (42) are provided, and the mounting part (52) is provided with a pair of left and right holding pieces (56), and the holding and fixing part (42 ) And a pair of hook attachment pieces (45), engagement rails (48) for engaging and holding the pair of clamping pieces (56) movably back and forth are formed on the left and right sides of the attachment member (41). The pair of sandwiching pieces (56) are engaged with and held by the engagement rail (48), and the pair of sandwiching pieces (56) and one By tightening the hook attachment piece (45), the holding and fixing portion (42) is held and fixed to the support rod (29) so as to be vertically adjustable, and a pair of hooks (35) are attached to the hook attachments. The infant seat for bicycles according to claim 5, characterized in that it is fastened and fixed to the part (43) via a pair of clamping pieces (56) so as to be adjustable in the front-rear direction.   A locking gear (80) having a plurality of locking teeth (79) is provided in the vertical direction on the front surface of the seat support portion (6), and the mounting member (41) includes a fixing portion (82) and the fixing portion (82). A pair of left and right hook attachment parts (43) projecting forward from both right and left ends of the fixing part (82), and can be freely engaged and disengaged between the locking teeth (79) of the locking gear (80). An engaging claw (84) to be engaged is provided, and the fixing portion (82) is fastened to the seat support portion (6) in a state where the engaging claw (84) is engaged between any of the locking teeth (79). The infant seat for bicycles according to claim 5, wherein the infant seat is fixed.

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