JP2007125992A - Child seat for bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a child seat for a bicycle usable for a long period of time while maintaining a state capable of favorably using a step. <P>SOLUTION: A pair of left and right supporting plates 15 is respectively and projectively provided downward on both left and right sides of a seat part 2, plural stages of locking holes 18 are provided in the vertical direction on each of the supporting plates, plural stages of mounting holes 19 are provided in the vertical direction in correspondence with the locking holes, an engaging piece projected inward in the left and right directions is provided and a mounting hole is provided on an upper part of the step, the engaging piece is engaged not to be extracted from the locking hole 18 by sliding the step to the supporting plate 15 by inserting the engaging piece through the locking hole 18, the mounting hole of the step is constituted to coincide with the mounting hole 19 of the supporting plate in correspondence with the locking hole into which the engaging piece is inserted, and it is devised to fix the step on the supporting plate never to slide by inserting a fixture into the mounting hole of the supporting plate and the mounting hole of the step coincided with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bicycle infant seat to be mounted on a bicycle.

Some bicycle infant seats include a seat body having a seat portion and a backrest portion, and steps are provided for placing feet on the left and right sides of the seat portion. In this type of conventional infant seat for bicycles, the step is fixed to or attached to the seat body (for example, Patent Document 1 and Patent Document 2).
Registered Utility Model No. 3058842 JP 2000-203478 A

Therefore, in the conventional infant seat for bicycles, it is difficult to adjust the step up and down with respect to the seat body. For this reason, as an infant (child) grows and grows, both legs become longer, so the distance from the seat body to the step footrest becomes relatively shorter. In addition, both legs are bent in a U-shape so as to protrude upward, and the foot is placed on the step, which makes it impossible to use the step suitably in a short period of time.
In view of the above-mentioned problems, the present invention allows the step to be easily adjusted up and down in response to the growth of the infant, and uses the infant seat for a bicycle for a long time while maintaining the state in which the step can be suitably used. It is something that can be done.

The technical means of the present invention for solving this technical problem is a bicycle infant seat comprising a seat main body having a seat portion and a backrest portion, and having steps provided on the left and right sides of the seat portion.
A pair of left and right support plates project downward from the left and right sides of the seat, and each support plate is provided with a plurality of locking holes in the vertical direction, and the mounting holes correspond to the locking holes in the vertical direction. In the upper part of the step, an engaging piece projecting inward in the left-right direction is provided, and an attachment hole is provided. The engaging piece is inserted into the locking hole, and the step is moved with respect to the support plate. By sliding, the engaging piece is engaged with the locking hole so that it cannot be removed, and the mounting hole of the step coincides with the mounting hole of the support plate corresponding to the locking hole into which the engaging piece is inserted. The mounting tool is inserted through the matching mounting hole of the support plate and the mounting hole of the step so that the step is non-slidable with respect to the support plate.

According to another technical means of the present invention, the engaging piece includes a connecting portion that protrudes inward in the left-right direction from the step, and an engaging member that protrudes in the front-rear direction from the protruding end of the connecting portion and can be inserted into the locking hole. The engaging portion is inserted into the locking hole, and the step is slid in the front-rear direction, so that the engaging portion is engaged with the locking hole in a non-detachable manner. In the point.
In addition, according to another technical means of the present invention, a plurality of locking holes of the support plate are provided in a plurality spaced apart in the front-rear direction, and the engagement pieces of the step correspond to the front-rear locking holes. In the upper part of the step, a plurality are provided apart from each other in the front-rear direction.

According to another technical means of the present invention, a stop plate bent outward in the left-right direction is provided at a rear end portion of the support plate, and a stop plate bent outward in the left-right direction is provided at the rear end portion of the step. The engaging portion of the engaging piece is provided to protrude rearward from the protruding end of the connecting portion, and the step is slid rearward to engage the engaging portion so that the engaging portion does not come off the locking hole. The stop plate of the step is configured to be superposed on or in contact with the stop plate of the support plate from the front side.
Further, according to another technical means of the present invention, a handle member having a pair of left and right mounting bases protrudes upward from the front end portion of the seat portion of the seat body, and the handle member is provided on both left and right sides of the front end portion of the seat portion. Insertion holes are provided through which the attachment base is inserted, and fitting recesses are provided on the left and right inner surfaces of the support plate for fitting the attachment base of the handle member protruding downward from the seat through the insertion hole so as to move up and down. The plurality of mounting holes provided in the support plate are arranged corresponding to the fitting recesses, and the mounting base of the handle member has a plurality of mounting holes corresponding to the plurality of mounting holes provided in the support plate. The mounting tool is inserted into the mounting hole of the mounting base of the handle member in addition to the mounting hole of the step and the mounting hole of the support plate, and the step and the handle member are stopped on the support plate. is there.

  According to another technical means of the present invention, there is provided a cover body having a pair of left and right cover portions that closes the left and right openings between the left and right sides of the seat back and the left and right sides of the handle member. The body is supported by the seat body so as to be rotatable about the horizontal axis, and the cover body is in a storage posture along the inner surface of the seat body, and the cover body projects forward from the seat body and the left and right openings are formed by a pair of left and right cover parts. This is because the posture can be changed to the closed posture for closing the part.

  According to the present invention, when a step is attached to the seat body, one of the plurality of stages of locking holes of the support plate is selected, and the step engagement piece is inserted into the selected locking hole. Then, after the step is slid with respect to the support plate, the fitting piece is inserted into the mounting hole of the matching support plate and the mounting hole of the step and stopped, so that the engaging piece cannot be removed from the locking hole. In addition to being engaged, the step cannot be slid with respect to the support plate, and the step can be easily adjusted up and down with respect to the seat body. Therefore, as the child grows, the step can be easily adjusted up and down with respect to the seat body, and the infant seat for bicycles can be used for a long period of time while maintaining the state in which the step can be suitably used. become.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, a bicycle infant seat 1 includes a seat main 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 main body 4 so as to be adjustable in height. Steps 6 are provided on both the left and right sides of the seat 2 of the seat 4, a handle member 7 is projected upward from the front end of the seat 2 of the seat body 4, and a cover body 8 is provided on the inner surface side of the seat body 4. Yes.
As shown in FIGS. 1 to 7, the seat body 4 is formed integrally with the seat portion 2 and the backrest portion 3 using synthetic resin or the like, and the backrest portion 3 includes a rear wall portion 11 and a pair of left and right side wall portions 12. The seat portion 2 is integrally connected to the lower end of the rear wall portion 11 of the backrest portion 3 and the lower end of the pair of side wall portions 12, and the front portion of the seat portion 2 is forward of the pair of side wall portions 12 of the backrest portion 3. Projected to

  As shown in FIGS. 1 to 4, 8, 9, and 21, a pair of left and right support plates 15 protrude downward from the left and right sides of the front portion of the seat portion 2 of the seat body 4. A stop plate 16 that is bent outward in the left-right direction is provided at the rear end of the support plate 15. Each support plate 15 is provided with a plurality of rectangular locking holes 18 in the vertical direction (two levels) and a plurality of mounting holes 19 corresponding to the locking holes 18 in the vertical direction (two levels). ing. A plurality of (two) locking holes 18 of the support plate 15 are provided at a distance from each other in the front-rear direction. Therefore, in the present embodiment, the four locking holes 18 are provided in the support plate 15 side by side in the vertical direction, and one two-stage mounting hole 19 is provided in front of the two-stage locking holes 18. ing.

A cushion mat is laid on the seat 2.
1 and 18 to 22, each of the pair of left and right steps 6 includes a side plate portion 21 and a footrest portion 22 that protrudes outward in the left-right direction from the lower end of the side plate portion 21. A stop plate 23 that is bent outward in the left-right direction is provided. An engaging piece 24 that protrudes inward in the left-right direction is provided on the upper portion of the side plate portion 21 in Step 6, and an attachment hole 25 is provided. A plurality (two) of engaging pieces 24 in step 6 are provided in the upper part of step 6 so as to be separated in the front-rear direction, corresponding to the front and rear locking holes 18 of the support plate 15.

  The engaging piece 24 has a connecting portion 27 protruding inward in the left-right direction from the step 6, and an engaging portion 28 protruding rearward from the protruding end of the connecting portion 27. The engaging portion 28 is a locking hole. The two engagement pieces 24 are formed in a rectangular shape corresponding to 18 and can be inserted into the engagement holes 18. The engaging piece 24 is configured to be engaged with the locking hole 18 so as not to be removed by sliding the step 6 in the front-rear direction. Further, as described above, the engaging piece 24 is inserted into the locking hole 18 and the step 6 is slid with respect to the support plate 15, so that the mounting hole 25 of the step 6 becomes the locking hole into which the engaging piece 24 is inserted. 18 is configured to coincide with the mounting hole 25 of the support plate 15 of the step corresponding to 18. Further, when the step 6 is slid rearward and the engagement piece 24 is engaged so as not to be detached from the locking hole 18, the stop plate 23 of step 6 approaches the stop plate 16 of the support plate 15 from the front side. Or it is comprised so that it may polymerize in contact. Then, the fitting 30 is inserted into the matching mounting hole 19 of the support plate 15 and the mounting hole 25 of step 6 so that the step 6 is slidably stopped with respect to the support plate 15 by the mounting tool 30. .

As shown in FIG. 21, the fixture 30 includes a bolt 31 and a nut 32, and the nut 32 is fitted and held in a fitting recess 38 described later.
In FIGS. 1 and 16 to 17, the handle member 7 has a pair of left and right mounting bases 36. Insertion holes 37 through which the attachment base portion 36 of the handle member 7 is inserted are provided on both the left and right sides of the front end portion of the seat portion 2, and fitting recesses 38 are provided on the left and right inner surfaces of the support plate 15. An attachment base portion 36 of the handle member 7 protruding downward via 37 is fitted to the fitting recess 38 so as to be movable up and down.

Two stages of mounting holes 19 provided in the support plate 15 are arranged in two stages corresponding to the fitting recesses 38, and a plurality of stages of mounting holes provided in the support plate 15 are provided in the mounting base 36 of the handle member 7. A plurality of mounting holes 35 are provided corresponding to 19. Thus, the fixture 30 is inserted into the attachment hole 35 of the attachment base portion 36 of the handle member 7 in addition to the attachment hole 25 of step 6 and the attachment hole 19 of the support plate 15, and is inserted into the support plate 15 at step 6. And the handle member 7 are stopped.
1 and 13 to 15, the cover body 8 includes a pair of left and right cover portions 41 that block left and right openings 40 between the left and right sides of the backrest portion 3 of the seat body 4 and the left and right sides of the handle member 7. And the pair of left and right horizontal shafts 42 of the cover body 8 are engaged with the support holes 43 shown in FIGS. 2 and 7 provided in the side wall portion 12 of the backrest portion 3, whereby the cover body 8 is seated. The cover 4 is supported by the main body 4 so as to be rotatable around the horizontal axis 42, and the cover body 8 is retracted forward along the inner surface of the seat main body 4. The posture can be changed to a closed posture for closing the left and right openings 40.

  In FIGS. 1 to 5, 10 to 12, and 23 to 30, a support leg 45 is protruded downward from the headrest 5. A holding cylinder portion 46 for fitting and holding the support leg 45 so as to be movable up and down is provided at the upper end portion of the central portion in the left-right direction of the rear wall portion 11 of the backrest portion 3. An elastic support piece 48 is formed between the slits 47 on the rear wall of the holding cylinder part 46 by providing a pair of left and right slits 47 on the rear wall of the holding cylinder part 46 upward from the lower end thereof. A thin-walled portion 49 is provided at the upper end of the elastic support piece 48, and the elastic support piece 48 is elastic so as to move forward and backward toward the support leg 45 fitted to the holding cylinder portion 46 with the thin-walled portion 49 as a fulcrum. It is configured to be deformable.

A concave / convex row 50 is provided in the vertical direction on the rear surface side of the support leg 45 of the headrest 5, and an engagement protrusion 51 is provided on the elastic support piece 48 so as to be detachably engaged with the concave / convex row 50 of the support leg 45. Yes.
A fastener 54 is provided for tightening the elastic support piece 48 so as to press the elastic support piece 48 toward the support leg 45 in order to lock the engaging portion 28 in a state where the engaging portion 28 is engaged with the concave / convex row 50. As shown in FIG. 6, the fastener 54 has a bolt 55 inserted through the holding cylinder portion 46 and the support leg 45, and a tightening nut 56 screwed into the end of the bolt 55.
A vertical hole 58 through which the bolt 55 is inserted is provided in the support leg 45, an attachment hole 59 through which the bolt 55 is inserted is provided at the center of the elastic support piece 48, and the engagement protrusion 51 is provided in the attachment hole. 59 is formed to be continuous on both the left and right sides. Therefore, the engaging protrusion 51 divided into the left and right sandwiches the attachment hole 59 from both the left and right sides. The concavo-convex row 50 is formed to be continuous on both the left and right sides of the long hole 58. Accordingly, the uneven row 50 divided to the left and right sandwiches the long hole 58 from both the left and right sides.

An opening window 61 is provided on the front wall of the holding cylinder portion 46 so as to face the elastic support piece 48, and a lid body 62 that closes the opening window 61 is provided. As shown in FIGS. 31 to 33, the lid body 62 is formed in a rectangular plate shape, and a mounting hole 63 is provided in the lid body 62. The lid body 62 is pressed from the front side to the front wall of the holding cylinder portion 46 so that the bolt 55 of the fastener 54 is inserted and the opening window 61 is closed by tightening the fastener 54.
The headrest 5 is detachable from the holding cylinder portion 46, and as shown in FIGS. 34 and 35, when the headrest 5 is removed, the holding cylinder portion 46 is closed so as to close the upper and lower openings 40 of the holding cylinder portion 46. A cap 64 is provided to be fitted inside. The cap 64 is provided with an engagement recess 65 in which the engagement protrusion 51 of the elastic support piece 48 is detachably engaged.

In FIGS. 1, 23 to 26, and 28 to 30, the headrest 5 includes a hard plate member 67 and a hard plate member 67 that are formed in a concavo-convex shape so that a plurality of concave portions and convex portions are continuous. And a soft member 68 provided on the inner surface of the hard plate member 67 so as to fill the concave portion on the inner surface side.
The hard plate member 67 is formed in a concavo-convex shape by continuously forming a plurality of arch portions 69 that are convex toward the inner surface side. Accordingly, in the hard plate member 67 part, the concave portion and the convex portion are continuously formed in a plurality of stages in the vertical direction.
The hard plate member 67 is made of a hard synthetic resin such as PP, the soft member 68 is made of an elastomer, and the hard plate member 67 and the soft member 68 are integrally formed by two-color molding.

The headrest 5 has a rear guard portion 71 that covers the head of the infant (child) from the rear, and a pair of left and right side guard portions 72 that cover the head of the infant from the side. The hard plate member 67 is curved and formed in a U shape so as to continue over the rear guard portion 71 of the headrest 5 and the pair of left and right side guard portions 72. The soft member 68 is provided on the inner surface of the hard plate member 67 in a state where the soft member 68 is separated from the rear guard portion 71 and the pair of left and right side guard portions 72 of the headrest 5.
As shown in FIG. 28, the soft member 68 is integrally formed over a plurality of concave and convex portions (arch portions 69) of the hard plate member 67, and fills the concave portions of the hard plate member 67 to form the soft member 68. It is formed so that the inner surface side of the flat surface.

The soft member 68 is set so that the thickness D of the portion corresponding to the apex of the convex portion (arch portion 69) of the hard plate member 67 is 3 mm to 5 mm. The inner surface of the soft member 68 is covered with a covering 73 having a smooth surface. The reason why the inner surface of the soft member 68 is covered with the covering 73 having a smooth surface is that the soft member 68 is made of an elastomer, so that the surface has a high slip resistance, and the head of an infant is rubbed here. In this case, the hair of the head is sometimes attached to the surface of the soft member 68 and pulled, and this is to prevent this.
According to the above embodiment, when the pair of left and right steps 6 is attached to the seat body 4, when the infant is small, the upper locking hole 18 of the multiple locking holes 18 of the support plate 15 is selected. When the engaging pieces 24 of step 6 are respectively inserted into the selected pair of upper locking holes 18 and the step 6 is slid rearward with respect to the support plate 15, the pair of front and rear engaging portions 28 is formed. The upper stage side pair of locking holes 18 are engaged with each other so as not to be removable. At this time, the stop plate 23 of step 6 is superposed on or in contact with the stop plate 16 of the support plate 15 from the front side, and the mounting hole 25 of step 6 is a support plate corresponding to the upper locking hole 18. 15 corresponds to the upper mounting hole 19.

At this time, if the pair of left and right attachment bases 36 of the handle member 7 are inserted into the insertion holes 37 at the front end of the seat 2 and fitted into the fitting recesses 38 of the support plate 15, the attachment of step 6 is performed. The hole 25 corresponds to the upper mounting hole 35 of the mounting base portion 36 of the handle member 7 in addition to the upper mounting hole 19 of the support plate 15.
Therefore, in this state, as shown in FIG. 21, the fixture 30 is inserted from the outside into the matching mounting hole 35 of step 6, the mounting hole 19 of the support plate 15, and the mounting hole 35 of the mounting base 36. And tighten.

Therefore, it is possible to easily and reliably attach the step 6 to the support plate 15 using the upper locking holes 18 by simply stopping the step 6 from being slidable with respect to the support plate 15 by the fixture 30. . At this time, the handle member 7 can be easily fixed to the seat 2 or the support plate 15 by using the fixture 30 at the same time.
When the infant becomes large, the lower locking hole 18 of the plurality of locking holes 18 of the support plate 15 is selected, and the lower locking hole 18 is used, similarly to the above, Step 6 may be attached to support plate 15 with fixture 30, and step 6 is adjusted to a lower position with respect to support plate 15 so that it can be adapted to a grown-up infant. Can be attached.

Therefore, the step 6 can be adjusted up and down with respect to the seat body 4 according to the growth of the infant, and the infant seat for bicycles is used for a long time while maintaining the state in which the step 6 can be suitably used. be able to.
Further, when the headrest 5 is adjusted up and down, the fasteners 54 are loosened and the headrest 5 through the support legs 45 are moved up and down with respect to the holding cylinder portion 46, thereby elastically supporting the uneven rows 50 of the support legs 45. The position of the concavo-convex row 50 of the support leg 45 with which the engagement protrusion 51 of the piece 48 engages is changed in small increments vertically, and the engagement protrusion 51 of the elastic support piece 48 is engaged with the concavo-convex row 50 of the support leg 45. In order to maintain the combined state, the headrest 5 to the support leg 45 can be held with respect to the holding cylinder portion 46 at an arbitrary position where the headrest 5 to the support leg 45 are moved up and down, so that the headrest 5 to the support leg 45 is moved to a desired vertical position. After that, it is only necessary to tighten the loosened fastener 54, and the headrest 5 can be adjusted up and down very easily and accurately. In addition, by tightening the fastener 54 after adjusting the headrest 5 up and down, the elastic support piece 48 is pressed toward the support leg 45, and the engagement protrusion 51 of the elastic support piece 48 is brought into contact with the uneven row 50 of the support leg 45. The headrest 5 through the support leg 45 are securely locked so as not to move up and down with respect to the holding cylinder portion 46 by being strongly pressed and engaged. Accordingly, the height of the headrest 5 can be adjusted with high accuracy and reliability by an extremely simple operation.

  The headrest 5 includes a hard plate member 67 and a soft member 68 provided on the inner surface of the hard plate member 67. The hard plate member 67 has an arch portion 69 that is convex toward the inner surface side in a plurality of stages. By being continuously formed, it is formed in a concavo-convex shape, and the concave portion and the convex portion are continuously formed in a plurality of steps in the vertical direction, so by the concavo-convex shape by the arch portion 69 of the hard plate member 67, The rigidity of the hard plate member 67 can be increased, and the impact caused by the bicycle overturning can be satisfactorily absorbed and absorbed by the elastic deformation by the multi-stage arch portion 69, so that the infant's head can be sufficiently protected. Can be made.

  In addition, since the soft member 68 is provided on the inner surface of the hard plate member 67 so as to fill the recesses between the plurality of arch portions 69 on the inner surface side of the hard plate member 67, the elasticity by the arch portion 69 of the hard plate member 67 is provided. The rigidity around the recess between the arch portions 69 of the hard plate member 67 that is likely to be weakened can be increased by the soft member 68 without impairing the rigidity of the headrest, thereby effectively increasing the rigidity of the entire headrest. Protection can be made more reliably. In addition, since the soft member 68 softly contacts or abuts against the infant's head, the headrest 5 more reliably guards the infant's head and is comfortable for the infant.

Therefore, when this headrest 5 is used, even if the infant is not using a helmet, the same head protection effect as the SG standard helmet can be obtained. In addition, by using both the helmet and the headrest 5, a much better effect of protecting the head can be obtained.
Further, a cover body 8 having a pair of left and right cover portions 41 for closing the left and right opening portions 40 between the left and right sides of the backrest portion 3 of the seat body 4 and the left and right sides of the handle member 7 is provided. The cover 4 is supported by the main body 4 so as to be rotatable around the horizontal axis 42, and the cover body 8 is retracted forward along the inner surface of the seat main body 4. Since the posture can be changed to the closed posture for closing the left and right openings 40, when the infant is put on the bicycle infant seat 1, the cover body 8 is attached to the inner surface of the seat body 4 as shown in FIG. , The infant can be put on the infant seat 1 for the bicycle without the cover body 8 getting in the way. When the infant is not put on the bicycle infant seat 1, the cover body 8 is rotated around the horizontal axis 42 in the direction of the arrow a shown in FIG. As a result, the cover body 8 protrudes forward from the seat body 4 and the pair of left and right cover portions 41 closes the left and right openings 40, so that the luggage can be placed on the seat body 4 so as not to fall, and the seat body 4 is loaded. It can be used effectively in a basket and is very convenient.

36 to 38 each show a modification of the headrest.
In the case of FIG. 36, the soft member 68 is provided on the inner surface of the hard plate member 67 so as to be separated for each recess between the arch portions 69 that are continuous above and below the hard plate member 67. The other points are the same as those in the above embodiment.
In the case of FIG. 37, the hard plate member 67 is formed in a concavo-convex shape by continuously forming mountain-shaped convex portions 74 that are convex toward the inner surface side over a plurality of steps. In other respects, the configuration is the same as that of the above embodiment.

In the case of FIG. 38, the hard plate member 67 is formed in a concavo-convex shape by continuously forming a trapezoidal convex portion 75 that is convex toward the inner surface side over a plurality of steps. The other points are the same as those in the above embodiment.
FIG. 39 shows another embodiment in which the hard plate member 67 and the soft member 68 of the headrest 5 are covered with a cover. The other points are the same as those in the above embodiment.
In the embodiment described above, the support plate 15 is provided with two locking holes 18 in the vertical direction, and two mounting holes 19 are provided in the vertical direction corresponding to the locking holes 18. An engaging piece 24 protruding inward in the left-right direction is provided at the top, and an attachment hole 25 is provided, and one of the two locking holes 18 is selected and selected. By inserting the engagement piece 24 into the locking hole 18 and sliding the step 6 backward with respect to the support plate 15, the step 6 can be attached to be adjustable in two steps. Instead, the support plate 15 is provided with three or more steps of the locking holes 18 in the vertical direction, and three or more mounting holes 19 are provided in the vertical direction corresponding to the locking holes 18, whereby step 6 is performed in three steps. It can be mounted so that it can be adjusted up and down. Unishi may be.

  In the embodiment, the engagement piece 24 is removed from the engagement hole 18 by inserting the engagement piece 24 into the engagement hole 18 and sliding the step 6 backward with respect to the support plate 15. Instead of this, for example, the engaging piece 24 is connected to the connecting portion 27 that protrudes inward in the left-right direction from step 6, and forward from the protruding end of the connecting portion 27. And the engaging piece 24 is inserted into the locking hole 18 and the step 6 is slid forward with respect to the support plate 15. You may comprise so that it may be engaged from detachable from. Further, the engaging piece 24 is inserted into the locking hole 18 and the step 6 is slid vertically with respect to the support plate 15 so that the engaging piece 24 is engaged with the locking hole 18 so as not to be removed. You may comprise.

Moreover, in the said embodiment, although the fixture 30 is comprised by the volt | bolt 31 and the nut 32, it may replace with this and you may make it comprise the fixture 30 with an attachment pin.
In the above embodiment, the fastener 54 for tightening the elastic support piece 48 so as to press the elastic support piece 48 toward the support leg 45, the bolt 55 inserted through the holding cylinder portion 46 and the support leg 45, and the end of the bolt 55. However, the fastener 54 is not limited to such a configuration. For example, the fastener 54 is configured by a bolt or the like that is screwed into a screw hole formed in the holding cylinder portion 46. You may do it.

  Further, in the above embodiment, the plurality of locking holes 18 of the support plate 15 are provided two by two apart from each other in the front-rear direction, and the engagement pieces 24 in step 6 correspond to the front and rear locking holes 18. In the upper part of step 6, two pieces are provided apart from each other in the front-rear direction. Instead, a plurality of locking holes 18 of the support plate 15 are provided one by one, and the engagement piece 24 of step 6 is provided. May be provided at the top of the step 6 corresponding to the locking hole 18. Further, three or more locking holes 18 of the support plate 15 are provided apart from each other in the front-rear direction, and the engagement pieces 24 in step 6 are arranged on the upper part of step 6 corresponding to the front and rear locking holes 18. Three or more of them may be provided apart from each other.

It is a perspective view of the infant seat for bicycles showing one embodiment of the present invention. It is a side view of the seat main body. It is a front view of the seat body. It is a top view of the seat body. It is the DD sectional view taken on the line of FIG. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is the FF sectional view taken on the line of FIG. It is the GG sectional view taken on the line of FIG. It is the HH sectional view taken on the line of FIG. It is a top view of the cover body. It is a side view of the cover body. It is a front view of the cover body. It is a side view of the handle member. It is a front view of the handle member. It is a top view of the step. It is a side view of the step. It is a front view of the step. It is the II sectional view taken on the line of FIG. It is the JJ sectional view taken on the line of FIG. It is a perspective view of the headrest. It is a front view of the headrest. It is a side view of the headrest. It is a rear view of the headrest. It is the KK sectional view taken on the line of FIG. It is the LL sectional view taken on the line of FIG. It is the MM sectional view taken on the line of FIG. It is the NN sectional view taken on the line of FIG. It is a front view of the cover body. It is a top view of the cover body. It is side surface sectional drawing of the cover body. It is a side view of the cap. It is side surface sectional drawing of the cap and holding | maintenance cylinder part. It is side surface sectional drawing of the headrest which shows other embodiment. It is side surface sectional drawing of the headrest which shows other embodiment. It is side surface sectional drawing of the headrest which shows other embodiment. It is a perspective view of the headrest which shows other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bicycle infant seat 2 Seat part 3 Backrest part 4 Seat main body 5 Headrest 6 Step 7 Handle member 8 Cover body 15 Support plate 16 Stopping plate 18 Locking hole 19 Mounting hole 23 Stopping plate 24 Engagement piece 25 Mounting hole 27 Connecting part 28 Engagement part 30 Attachment part 31 Head part 32 Detachment part 35 Attachment hole 36 Attachment base part 37 Insertion hole 38 Fitting recessed part 40 Opening part 42 Horizontal axis 45 Support leg 46 Holding cylinder part 47 Slit 48 Elastic support piece 50 Concavity and convexity array 51 Engagement Joint protrusion 54 Fastener 55 Bolt 56 Clamping nut 58 Long hole 59 Mounting hole 61 Opening window 62 Cover body 64 Cap 67 Hard plate member 68 Soft member 69 Arch part 71 Rear guard part 72 Side guard part

Claims (6)

In the infant seat for bicycles, comprising a seat body (4) having a seat part (2) and a backrest part (3) and provided with steps (6) on both left and right sides of the seat part (2),
A pair of left and right support plates (15) project downward from the left and right sides of the seat (2), and each support plate (15) has a plurality of locking holes (18) in the vertical direction. A plurality of mounting holes (19) are provided in the vertical direction corresponding to the locking holes (18), and an engagement piece (24) protruding inward in the horizontal direction is provided at the upper part of the step (6). An attachment hole (25) is provided, and the engagement piece (24) is inserted into the engagement hole (18) and the step (6) is slid with respect to the support plate (15). Is engaged with the locking hole (18) in a non-removable manner, and the mounting hole (25) of the step (6) is a support corresponding to the locking hole (18) into which the engagement piece (24) is inserted. It is configured to match the mounting hole (19) of the plate (15), and is aligned with the mounting hole (19) of the matching support plate (15). An infant seat for bicycles, characterized in that the attachment (30) is inserted into the attachment hole (25) of the support (6) so that the step (6) is non-slidable with respect to the support plate (15). .   The engaging piece (24) protrudes in the front-rear direction from the connecting end (27) protruding inward in the left-right direction from the step (6), and is inserted into the locking hole (18). The engaging portion (28) is inserted into the engaging hole (18) and the step (6) is slid in the front-rear direction. The infant seat for bicycles according to claim 1, wherein the child seat is configured so as to be unable to be removed from the locking hole (18).   A plurality of stages of locking holes (18) of the support plate (15) are provided apart from each other in the front-rear direction, and the engaging pieces (24) of the step (6) are provided in the front and rear locking holes (18). The infant seat for bicycles according to claim 1, wherein a plurality of infant seats are provided in the upper part of the step (6) so as to be separated from each other in the front-rear direction.   A stop plate (16) bent outward in the left-right direction is provided at the rear end portion of the support plate (15), and a stop plate (23) bent outward in the left-right direction is provided at the rear end portion of the step (6). The engaging portion (28) of the engaging piece (24) is provided to protrude rearward from the protruding end of the connecting portion (27), and the engaging portion (28) is slid backward by sliding step (6). When engaged so as not to be removed from the locking hole (18), the stop plate (23) of the step (6) approaches or comes into contact with the stop plate (16) of the support plate (15) from the front side. The infant seat for bicycles according to claim 1, wherein the infant seat is configured to overlap.   A handle member (7) having a pair of left and right mounting bases (36) is provided at the front end of the seat (2) of the seat body (4) so as to protrude upward, and on both the left and right sides of the front end of the seat (2), An insertion hole (37) for inserting the attachment base (36) of the handle member (7) is provided, and protrudes downward from the seat (2) through the insertion hole (37) on the left and right inner surfaces of the support plate (15). A fitting recess (38) for fitting the mounting base (36) of the handle member (7) so as to be movable up and down is provided, and a plurality of mounting holes (19) provided in the support plate (15) A plurality of stages of mounting corresponding to the plurality of mounting holes (19) provided in the support plate (15) on the mounting base (36) of the handle member (7). A hole (35) is provided, and the fixture (30) is provided between the attachment hole (25) of step (6) and the support plate (15). In addition to the attached hole (19), the step (6) and the handle member (7) are fixed to the support plate (15) by being inserted into the attachment hole (35) of the attachment base (36) of the handle member (7). The infant seat for bicycles according to claim 1, wherein   A cover body (8) having a pair of left and right cover portions (41) for closing left and right openings (40) between the left and right sides of the backrest portion (3) of the seat body (4) and the left and right sides of the handle member (7) ), The cover body (8) is supported by the seat body (4) so as to be rotatable about the horizontal axis (42), and the cover body (8) has a storage posture along the inner surface of the seat body (4). The cover body (8) protrudes forward from the seat body (4) and can be changed to a closed position in which the left and right openings (40) are closed by a pair of left and right cover parts (41). The infant chair for bicycles according to claim 5.

Images