CN102259658B - Stroller And Its Guide Arm - Google Patents

Abstract

A stroller (10) is provided with an arm (60), front legs (60) and rear legs (14) together connecting with the arm (60) in a rotary manner and a connecting rod (30) connected on the arm (6) in a rotary manner and connected on the rear legs (14) in a rotary manner through a bracket (38). Besides, the stroller (10) also includes an anti-clamping part (70) supporting between the arm (40) and the connecting rod (30). The anti-clamping part (70) fills the gap between the arm (40) and the connecting rod (30).

Description

The protection arm of perambulator and perambulator

Technical field

The present invention relates to the protection arm of Collapsible pushchair and perambulator, particularly can prevent from folding operation or launch clothing in operation etc. being clamped in handrail and rotation and being attached at freely perambulator in the gap producing between other structure members on handrail and the protection arm of perambulator.

Background technology

Propose many kinds and be made for practicality newborn child being taken to the perambulator using when outdoor.The perambulator using at present can be nearly all that deployed condition is folding to the folded state that is suitable for storage from taking newborn child's state.

In Collapsible pushchair, rotate and be linked with freely each structure members such as handrail, and, rotate and can fold by each structure member.

But, with respect to rotating with structure member, for example handspike of handrail rotation link freely, conventionally between handrail and this structure member, produce gap at handrail.Thereby, in folding operation or in expansion operation, likely there is clothing and sandwich the undesirable condition in the gap between handrail and this structure member, even finger sandwiches the undesirable condition in gap.

Summary of the invention

The present invention makes in view of such problem, and object is to provide and can prevents in folding operation or launch the protection arm that clothing in operation etc. is clamped in handrail and rotation are attached at the gap producing between other structure members on handrail freely and makes overall weight-saving perambulator and perambulator.

The present invention is a kind of Collapsible pushchair, it is characterized in that, possesses: handrail; Foreleg and back leg, rotate and be attached at freely on handrail; Union lever, rotates and is attached at freely on handrail and back leg; Prevent sandwiching parts, be bearing on handrail or union lever, by the gap filling between handrail and union lever.

The present invention is a kind of perambulator, it is characterized in that, handrail has armrest body and extends from the rear end of armrest body and rotate the extension being connected to freely union lever; Prevent sandwiching parts by the gap filling between the rear end of armrest body and union lever.

The present invention is a kind of perambulator, it is characterized in that, the anti-upper end that sandwiches parts and be embedded in union lever, is bonded bar supporting.

The present invention is a kind of perambulator, it is characterized in that, the anti-parts that sandwich are by being fixed on the connecting member of handrail and union lever link on union lever.

The present invention is a kind of perambulator, it is characterized in that, anti-sandwich parts have with the orthogonal cross section of the turning cylinder of handrail and union lever on there is the part of the profile of arcuation.

The present invention is a kind of perambulator, it is characterized in that, prevents that sandwiching parts is bearing on handrail sliding freely, is pushed to union lever by spring.

The present invention is a kind of perambulator, it is characterized in that, the anti-track that sandwiches parts of supporting is sliding freely formed on handrail.

The present invention is a kind of Collapsible pushchair, it is characterized in that, possesses: handrail; Foreleg and back leg, rotate and be attached at freely on handrail; Handspike, rotates and is attached at freely on handrail and back leg; Prevent sandwiching parts, be bearing on handrail or handspike, by the gap filling between handrail and handspike.

The present invention is a kind of perambulator, it is characterized in that, handrail has armrest body and extends from the rear end of armrest body and rotate the extension being connected to freely handspike; Prevent sandwiching parts by the gap filling between the rear end of armrest body and handspike.

The present invention is a kind of perambulator, it is characterized in that, the anti-parts that sandwich are by being fixed on the connecting member of handrail and handspike link on handspike.

The present invention is a kind of perambulator, it is characterized in that, anti-sandwich parts have with the orthogonal cross section of the turning cylinder of handrail and handspike on there is the part of the profile of arcuation.

The present invention is a kind of perambulator, it is characterized in that, prevents that sandwiching parts is bearing on handrail sliding freely, is pushed to handspike by spring.

The present invention is a kind of perambulator, it is characterized in that, the anti-track that sandwiches parts of supporting is sliding freely formed on handrail.

The present invention is a kind of protection arm of perambulator, between the pair of armrests of perambulator, extend and configure, and formed by the centre part that is attached at the pair of end portions in pair of armrests and be located between pair of end portions, it is characterized in that, centre part possesses: core part, between pair of armrests, extend, and there is elasticity; A pair of soft parts, clip the setting of core part, more soft than core part; Guard block, is located on the outer surface of each soft parts, and protects soft parts; Core part is made up of hard parts and the soft resinoid parts that are configured in side by side on hard parts.

The present invention is a kind of protection arm of perambulator, it is characterized in that, hard parts are made up of polypropylene tape.

The present invention is a kind of protection arm of perambulator, it is characterized in that, is provided with the dismounting exterior base-material of using freely on the outer surface of guard block.

The present invention is a kind of protection arm of perambulator, it is characterized in that core part and a pair of soft isolation of components and arrange.

The present invention is a kind of protection arm of perambulator, it is characterized in that, each soft parts cover outer surface by guard block; Each soft parts clip guard block and are arranged in core part.

The present invention is a kind of perambulator, it is characterized in that, possesses: a pair of back leg; Drg bearing, is arranged on each back leg; Axletree, is arranged on each drg bearing; Trailing wheel, is arranged in the outboard end of each axletree, is made up of single-wheel; Connecting piece extends between each drg bearing, and each drg bearing is linked.

The present invention is a kind of perambulator, it is characterized in that, on the medial end of each axletree, the collar is installed, and is provided with link teat on the inside face of each drg bearing, the link of the collar of each axletree and each drg bearing is entrenched in connecting piece end with teat.

The present invention is a kind of perambulator, it is characterized in that, the link of each drg bearing forms a part for oval outer rim with the collar of teat and each axletree, and connecting piece has the oval inner edge corresponding with this ellipse outer rim.

The present invention is a kind of perambulator, it is characterized in that, the link of each drg bearing has pawl with teat, is provided with the connecting hole of this pawl engaging on connecting piece end.

Brief description of the drawings

Fig. 1 is the partial perspective view that represents the 1-1 embodiment of the perambulator of the 1st embodiment of the present invention.

Fig. 2 is the exploded perspective view of Fig. 1.

Fig. 3 is the figure of the anti-effect that sandwiches parts of explanation.

Fig. 4 is the block diagram that represents the schematic configuration of perambulator.

Fig. 5 is the lateral plan that represents the schematic configuration of perambulator, is the figure that represents the state of handspike in pushing position, the back side.

Fig. 6 is the lateral plan that represents the schematic configuration of perambulator, is the figure that represents the state of handspike in pushing position, opposite.

Fig. 7 is the lateral plan that represents perambulator, is the figure that represents the folded state of perambulator.

Fig. 8 is the partial perspective view that represents the 1-2 embodiment of perambulator of the present invention.

Fig. 9 is the partial top view that represents perambulator.

Figure 10 is the block diagram that represents the schematic configuration of perambulator.

Figure 11 is the lateral plan that represents perambulator, is the figure that represents the folded state of perambulator.

Figure 12 is the partial perspective view that represents the 1-3 embodiment of perambulator of the present invention.

Figure 13 is the part sectional view that represents perambulator.

Figure 14 is the figure of the anti-effect that sandwiches parts of explanation.

Figure 15 is the partial perspective view that represents the 1-4 embodiment of perambulator of the present invention.

Figure 16 be represent the 2nd embodiment of the present invention assembling the block diagram of schematic configuration of protection arm.

Figure 17 is the vertical profile lateral plan of perambulator.

Figure 18 is the enlarged side view of back of the body support Supporting fixture and side plate.

Figure 19 is the birds-eye view of back of the body support Supporting fixture and headrest portion.

Figure 20 is the action specification figure of back of the body support Supporting fixture and headrest portion.

Back of the body support Supporting fixture when Figure 21 is folding and the action specification figure of headrest portion.

Figure 22 is the birds-eye view that represents the embodiment of protection arm of the present invention.

Figure 23 is the A-A cutaway view of the protection arm shown in Figure 22.

Figure 24 is the skeleton diagram that represents the B-B cross section of the protection arm shown in Figure 22.

Figure 25 is the skeleton diagram that represents the up-and-down movement of protection arm of the present invention.

Figure 26 is the side sectional view that represents the variation of protection arm of the present invention.

Figure 27 is the block diagram of an example of the perambulator that represents that the left and right trailing wheel of the 3rd embodiment of the present invention is made up of single-wheel.

Figure 28 is the exploded perspective view of trailing wheel installation portion of the present invention.

Figure 29 is the summary construction diagram that represents trailing wheel connecting state of the present invention.

Detailed description of the invention

With reference to the accompanying drawings 1-1 to the 1-4 embodiment in perambulator of the present invention is described.

The 1st embodiment

(1-1 embodiment)

First, the 1-1 embodiment of perambulator of the present invention is described.

Fig. 1 to Fig. 7 is the figure that represents the 1-1 embodiment of perambulator of the present invention, utilizes Fig. 4 to Fig. 7 wherein, first the integral structure of perambulator 10 is described.Here, Fig. 4 is the block diagram that represents the schematic configuration of perambulator 10, Fig. 5 is the lateral plan that represents the schematic configuration of perambulator 10, represent the state of handspike 20 in pushing position, the back side, Fig. 6 is the lateral plan that represents the schematic configuration of perambulator 10, represent the state of handspike 20 in pushing position, opposite, Fig. 7 is the lateral plan that represents perambulator 10, represents the folded state of perambulator 10.

In addition, in this specification sheets (also comprising 1-2 to the 1-4 embodiment described later), 'fornt', 'back', " on ", the term of D score, " fore-and-aft direction " and " above-below direction ", in the situation that there is no special instructions, mean handspike 20 is configured in to pushing position, the back side and the 'fornt', 'back' of perambulator 10 in deployed condition, " on ", D score, " fore-and-aft direction " and " above-below direction ".More particularly, " fore-and-aft direction " of perambulator 10 is the lower-left of paper and the directions of upper right that link in Fig. 4, and the lower-left side of the paper in Fig. 4 is the front side of perambulator 10.On the other hand, " above-below direction " of perambulator 10 is the directions that are orthogonal to fore-and-aft direction, is the above-below direction of the paper in Fig. 4.In addition, the perambulator 10 in present embodiment, as shown in Fig. 4 and Fig. 7, is symmetrical structure roughly centered by the Width along fore-and-aft direction (being orthogonal to the direction of fore-and-aft direction and above-below direction) line of centers.

As shown in Figures 4 to 6, perambulator 10 possesses: pair of armrests 60,60; A pair of back leg 14,14, is that a pair of back leg 14,14 linking is freely rotated in handrail 60 and upper part separately, rotates and keeps freely wheel 16,16 respectively; A pair of foreleg 12,12, is that a pair of back leg 12,12 linking is freely rotated in handrail 60 and upper part separately, rotates and keeps freely wheel 16,16 respectively; A pair of union lever 30,30, rotates link freely by the rear part of handrail 60 and upper section separately, and the pars intermedia of back leg 14 is rotated freely and linked with below part separately; A pair of side frame 40,40, is respectively the centre portion of foreleg 12 to be connected to a pair of side frame 40,40 with the below part of union lever 30, rotates respectively and is attached at freely on foreleg 12 and union lever 30; Handspike 20, is with the handspike 20 that roughly U-shaped is extended, by the below part of a pair of union lever 30,30 and the roughly two end portions link of U word.The turning cylinder (center of turn) of the turning cylinder (center of turn) of handspike 20 and union lever 30 and side frame 40 and union lever 30 is consistent.And handspike 20 can be configured on the pushing position, opposite shown in the pushing position, the back side shown in Fig. 5 and Fig. 6.

In addition, as shown in Figures 4 to 6, perambulator 10 also possesses a pair of bracket 38,38, is a pair of bracket 38,38 that the centre portion of back leg 14 is connected respectively with the below part of union lever 30, rotates and is attached at freely on back leg 14 and union lever 30 respectively.Therefore, the below part of union lever 30 is rotated on the centre portion that is attached at freely back leg 14 via this bracket 38.In addition, the turning cylinder of the turning cylinder (center of turn) of bracket 38 and union lever 30 and the turning cylinder of handspike 20 and union lever 30 and side frame 40 and union lever 30 is consistent.

In addition, as shown in Fig. 4 and Fig. 6, on the upper part of union lever 30, be provided with the anti-parts 70 that sandwich, but prevent that for this sandwiching parts 70 narrates in the back.

As shown in Figure 4, between a pair of foreleg 12,12, be provided with foot rest (foot rest) 44 and front upper lateral part that they are connected and link stay 42.Front upper lateral part wherein links stay 42 as shown in the figure, plays a role with the turning cylinder of foreleg 12 as side frame 40.

In addition, as shown in Figure 4, on the rear end part of side frame 40, swing with respect to side frame 40 back of the body being provided with freely by roughly U-shaped forms and support Supporting fixture 46.And, in linking stay 42 and carry on the back the region surrounding to Supporting fixture 46 by side frame 40, front upper lateral part, be equipped with lower seat (base sheet) 48.The rear side that supports Supporting fixture 46 at the back of the body, is provided with gradient (reclining) adjustment member 56 being fixed between a pair of union lever 30,30, by regulating the length of these pitch adjustment parts 56, can regulate the back of the body to support the angle of inclination of Supporting fixture 46.

As clearly represented in Fig. 6, below each union lever 30 in part, be provided with sliding freely and under deployed condition, engage with the end of bracket 38 and maintain the Lock Part 32 of this deployed condition along the length direction of union lever 30.As shown in Fig. 4 and Fig. 6, each Lock Part 32 has outstanding laterally action plate 34.On the other hand, below handspike 20, in part, as shown in Figure 4, be provided with the latch-release parts 22 with the unlocking lever 24 engaging with the action plate 34 of Lock Part 32.Latch-release parts 22 are located at the long-distance operating device 28 in the approximate centre part of handspike 20 and slide upward along handspike 20 by operation.If latch-release parts 22 are pulled up, unlocking lever 24 engages with action plate 34, and Lock Part 32 is by pull-up upward, and Lock Part 32 is disengaged with engaging of bracket 38.

In addition, as shown in Figures 4 to 6, on the centre portion of handspike 20, be provided with the latch for printed circuit 26 sliding with respect to handspike 20 by operating remote handling device 28.On the other hand, as shown in Figures 5 and 6, on each handrail 60, be provided with a pair of locking protrusion 61a, the 61b that engage the rotation that limits handspike 20 with latch for printed circuit 26.By being located at, the locking protrusion 61b (Fig. 6) at rear engages with latch for printed circuit 26 and engagement mutually, and as shown in Figure 5, handspike 20 is fixed to back side pushing state, and in the case, handspike 20 upwards extends substantially in parallel with union lever 30.On the other hand, by being located at, the locking protrusion 61a (Fig. 5) in front engages with latch for printed circuit 26 and engagement mutually, and as shown in Figure 6, handspike 20 is fixed to opposite pushing state, in the case, handspike 20 extends substantially in parallel upward with back leg 14.

Then, the effect when the perambulator being made up of such structure 10 is folding describes.

First, if handspike 20 is in pushing position, opposite, before folding operation, operating remote handling device 28 and latch for printed circuit 26 is slided, makes handspike 20 move to pushing position, the back side (Fig. 5) from pushing position, opposite (Fig. 6).

Then, be configured at handspike 20 under the state of pushing position, the back side, first, by operating remote handling device 28, Lock Part 32 is slided via latch-release parts 22, the releasing that engages by bracket 38 with Lock Part 32.Then, by by handspike 20 temporarily to back upper place pull-up, then push downwards, bracket 38 is rotated to clockwise direction in Fig. 5 with respect to back leg 14.Along with this operation, handrail 60 and side frame 40 rotate to clockwise direction in Fig. 5 with respect to union lever 30.By such operation, as shown in Figure 7, in side-looking, handspike 20 configures substantially in parallel with foreleg 12, and has reduced the allocation position of handspike 20.

Below like this, as shown in Figure 7, perambulator 10 is folded, becomes compact size on fore-and-aft direction and above-below direction.In addition, for perambulator 10 is launched from folded state, as long as just passable according to the order contrary with above-mentioned folding operation., as long as make bracket 38 rotate and make handrail 60 and side frame 40 to rotate just passable with respect to union lever 30 to anticlockwise direction in Fig. 7 with respect to back leg 14 to anticlockwise direction in Fig. 7 thereupon.

Then,, mainly referring to figs. 1 through Fig. 3, describe anti-structure and the effect that sandwiches parts 70 in detail.Here, Fig. 1 is the partial perspective view that represents perambulator, and Fig. 2 is the exploded perspective view of Fig. 1, and Fig. 3 is the figure of the anti-effect that sandwiches parts of explanation.

First, utilize Fig. 1 to Fig. 3 to narrate in further detail handrail 60.Particularly as shown in Figure 2, handrail 60 is the roughly U-shaped of cross section of lower opening, has the armrest body 62 being made up of top 63 and both sides 64,64 and a pair of extension 66,66 rearward extending from the both sides 64 of armrest body 62.As shown in Figure 4, armrest body 62 extends along fore-and-aft direction.Extension 66 extends to the both sides of the upper part of the union lever 30 at the rear that is disposed at armrest body 62 from the both sides 64 of armrest body 62.And by connecting the connecting member (connection shaft) 68 of upper part of a pair of extension 66 and union lever 30, extension 66 rotates and is connected to freely on union lever 30.

As shown in Figure 1 to Figure 3, anti-sandwich parts 70 and be configured to, by the gap producing between union lever 30 and handrail 60, more particularly, by the rear end 65 on the top 63 at union lever 30 and armrest body 62 between the gap filling of generation.In the present embodiment, anti-sandwich parts 70 there is the installation portion 72 on the upper part that is embedded in the union lever 30 being formed by pipe and be configured in union lever 30 and handrail 60 between gap in gap filling part 76.

Especially as shown in Figure 3, installation portion 72 is by the cover 73 of the lid performance function as the top of union lever 30 is blocked be located at the below of cover and a pair of insertion portion 74 that is configured in union lever forms.As shown in Figure 2, on each insertion portion 74, be formed with the hole 74a that inserts connecting member 68.By being inserted in the 74a of this hole with the connecting member 68 of union lever 30 linking handrail 60, prevent that sandwiching parts 70 is being fixed under the state on union lever 30 and is being supported via installation portion 72.

On the other hand, gap filling part 76 hangs down along the face in the face of armrest body 62 sides of union lever 30 from the installation portion 72 being embedded in the upper part of union lever 30.Gap filling part 76 is included in the arcuation part 77 that represents to have in the Fig. 3 analysing and observe orthogonal with the turning cylinder of handrail 60 and union lever 30 profile of arcuation, and this arcuation part 77 is in the face of the rear end 65 on the top 63 of armrest body 62.As shown in Figure 3, this arcuation part 77 become along centered by the turning cylinder being specified by connecting member 68, the shape of the motion track of the rear end 65 on the top 63 of the armrest body 62 of handrail 60 while rotating with respect to union lever 30.

Arcuation part 77 has certain thickness along Width, but on any position of Width, arcuation part 77 also preferably has along the cross section profile of the motion track of the rear end 65 of the armrest body 62 of facing.In the case, arcuation part 77 has the profile corresponding with the profile of the Width of the rear end 65 of armrest body 62 along Width.As shown in Figure 2, in the present embodiment, corresponding with the profile that the rear end 65 of armrest body 62 has linearity along Width, arcuation part 77 also has the profile of linearity along Width.

Then, the anti-effect that sandwiches parts 70 when perambulator 10 is folding from deployed condition (Fig. 6) and while expansion from folded state describes.

As described above, in the time that perambulator 10 is folding from deployed condition, handrail 60 rotates with respect to union lever 30.Otherwise in the time that perambulator 10 is launched from folded state, handrail 60 also rotates for union lever 30.And, as shown in Figure 3, in the situation that handrail 60 rotates with respect to union lever 30, between handrail 60 and union lever 30, produce the size variation in gap and this gap.This is to result from handrail 60 and the turning cylinder of union lever 30 not to be configured in the lip-deep phenomenon in the face of armrest body 62 sides of union lever 30.Thereby, for handrail 60 and union lever 30 are linked securely, in the case of the extension of handrail 60 66 being connected on union lever 30 center (in the face of the center on the surface (surface of front side) of armrest body 62 sides and the surface (surface of rear side) of its opposition side), this phenomenon inevitably produces.

This gap produces between the rear end 65 on the top 63 of armrest body 62 and the surface of union lever 30.And, being configured in, handrail 60 links in the orthogonal locational situation in the surface of the turning cylinder with respect to union lever 30 of handrail 60 and the straight line of rear end 65 and union lever 30, and the size in gap becomes maximum.And, because expose towards people folding or expansion perambulator 10 in this gap, so clothing or finger are likely clamped in this gap.

On the other hand, in the present embodiment, anti-the sandwiching on the upper part that parts 70 are supported in union lever 30 of filling up this gap.And the anti-arcuation part 77 that is configured in the gap filling part 76 between armrest body 62 and union lever 30 that sandwiches parts 70 exists, with the turning cylinder of handrail 60 orthogonal analyse and observe in have along the profile of the motion track of rear end 65.Thereby, arcuation part 77 is formed as, make it fill up the gap changing because of the movement with respect to union lever 30 of handrail 60.Therefore, in folding operation or launch in operation, can prevent that clothing etc. is clamped in the gap of generation between the armrest body 62 of handrail 60 and union lever 30.

Above, according to present embodiment, on perambulator 10, be provided with the anti-parts 70 that sandwich that are bearing on union lever 30, fill up the gap between armrest body 62 and the union lever 30 of handrail 60.Thereby, can prevent clothing etc. to be clamped in the gap of armrest body 62 and union lever 30.

In addition, according to present embodiment, prevent that sandwiching parts 70 supported by the upper part of the union lever 30 being made up of tubing, prevent that sandwiching parts 70 also plays the function as the lid material of union lever 30.Conversely, the anti-parts 70 that sandwich are to make the lid material conventionally using have the function of filling up gap, the not increase of parts number of packages.

In addition,, according to present embodiment, the anti-parts 70 that sandwich are fixed on union lever 30 by the connecting member (axle) 68 that handrail 60 and union lever 30 are linked.Thereby, can not increase parts number of packages and by simple sound construction the anti-parts 70 that sandwich are installed.

And then according to present embodiment, the anti-parts 70 that sandwich have the arcuation part 77 on the cross section of turning cylinder that is orthogonal to handrail 60 and union lever 30 with the profile of arcuation.And this arcuation part 77 has along the profile of mobile route of the rear end 65 of the armrest body 62 of the handrail 60 in rotating.Thereby arcuation part 77 can be filled up gap with respect to the big or small variation in the gap in the rotation of union lever 30 corresponding to handrail 60.Thus, can prevent more reliably sandwiching of clothing etc.

And then, according to present embodiment, prevent that sandwiching parts 70 forms by being embedded into the gap filling part 76 hanging down between the installation portion 72 on union lever 30 and the armrest body from installation portion 72 to handrail 60 62 and union lever 30.Thereby the size of perambulator entirety, the size that also has union lever 30 and handrail 60 can be than conventionally large, and can prevent sandwiching of clothing etc.

In addition, in the present embodiment, exemplified with anti-sandwich parts 70 by being embedded on the upper end of union lever 30, be bonded parts 68 again together with union lever 30 and handrail 60 and connect the example that supports and be fixed on union lever 30, but be not limited to this.As long as being configured to just passable the gap filling between handrail 60 and union lever 30, can support the anti-parts 70 that sandwich by the whole bag of tricks.For example, also can be only by being embedded into, on the upper end of union lever 30, will to prevent sandwiching parts 70 fixing with union lever 30.Or, can, as described in detail in the 2nd embodiment, not be embedded on union lever 30 yet, connect and be only bonded parts 68 together with union lever 30, will prevent that sandwiching parts 70 is fixed on union lever 30.

(1-2 embodiment)

Then, mainly utilize Fig. 8 to Figure 11,1-2 embodiment is described.

In the 1-2 embodiment shown in Fig. 8 to Figure 11, as the integral structure of perambulator, except having removed union lever 30 and having configured handspike 20 and sandwich the structure difference of parts 70, installation portion 72a as anti-on the position that union lever 30 is set originally, the 1-1 embodiment of Fig. 1 to Fig. 7 explanation is substantially identical with utilizing.Give identical Reference numeral and omit the detailed explanation of repetition for identical part.

In addition, Fig. 8 is the partial perspective view that represents perambulator 10, and Fig. 9 is the partial top view that represents perambulator 10, and Figure 10 is the block diagram that represents the schematic configuration of perambulator 10, and Figure 11 is the lateral plan that represents perambulator, represents the folded state of perambulator.Wherein, omitted and prevent sandwiching parts 70 in Figure 10 and Figure 11, Figure 10 and Figure 11 are also the integrally-built figure that represents the perambulator of the 4th embodiment described later.

As shown in Figures 10 and 11, in 1-2 embodiment, perambulator 10 possesses: pair of armrests 60,60; A pair of back leg 14,14, is that a pair of back leg 14,14 linking is freely rotated in handrail 60 and upper part separately, rotates and keeps freely wheel 16,16 respectively; A pair of foreleg 12,12, is that a pair of foreleg 12,12 linking is freely rotated in handrail 60 and upper part separately, rotates and keeps freely wheel 16,16 respectively; A pair of handspike 20,20, is the handspike 20 roughly extending to U-shaped, and rotates freely and links with the rear part of pair of armrests 60,60, and rotate freely by the centre portion of back leg 14 and the roughly two end portions link of U word; A pair of side frame 40,40, is a pair of side frame 40, the 40 respectively centre portion of foreleg 12 being connected with the two end portions of the roughly U word of handspike 20, rotates and is attached at freely on foreleg 12 and handspike 20 respectively.

In addition, as shown in Figure 10 to Figure 11, perambulator 10 also possesses a pair of bracket 38,38, is a pair of bracket 38,38 that the centre portion of back leg 14 is connected respectively with the two end portions of the roughly U word of handspike 20, rotates and is attached at freely on back leg 14 and handspike 20 respectively.Therefore, the below part of handspike 20 is rotated on the centre portion that is attached at freely back leg 14 via this bracket 38.In addition, bracket 38 is consistent with the turning cylinder (center of turn) of side frame 40 with turning cylinder (center of turn) and the handspike 20 of handspike 20.

As shown in figure 10, engage with bracket 38 and the Lock Part 32 that maintains deployed condition is located in the below part of handspike 20.This Lock Part 32 is located at the long-distance operating device 28 on handspike 20 by operation and is moved upward along handspike 20, and thus, Lock Part 32 is disengaged with engaging of bracket 38.

Perambulator 10 in present embodiment can be folded and launch from folded state from deployed condition by the method same with the method illustrating in above-mentioned 1-1 embodiment.That is, by bracket 38 is rotated with respect to back leg 14, and make handrail 60 and side frame 40 rotate with respect to handspike 20 thereupon, can be by folding perambulator 10 or expansion.

As shown in Fig. 8 and Fig. 9, anti-in present embodiment sandwich parts 70 there is the installation portion 72a being attached on handspike 20 and be configured in union lever 30 and handrail 60 between gap in gap filling part 76.

Wherein, gap filling part 76 is structures same with the embodiment of above-mentioned 1-1., gap filling part 76 be included in represent with the turning cylinder of handrail 60 and handspike 20 orthogonal analyse and observe in there is the profile of arcuation and the arcuation part 77 in the face of the rear end 65 on the top 63 of armrest body 62.And, this arcuation part 77 be along centered by the turning cylinder being specified by connecting member 68, the shape of the motion track of the rear end 65 on the top 63 of the armrest body 62 of handrail 60 while rotating with respect to handspike 20.In addition, arcuation part 77 has the profile corresponding with the profile of the Width of the rear end 65 of armrest body 62 along Width, in graphic example, has the profile of linearity along Width.

On the other hand, as shown in Figure 9, installation portion 72a is made up of pair of plate-shaped parts, and extend the both sides that are configured in the handspike 20 at the rear of gap filling part 76 from two side direction of gap filling part 76.In addition, installation portion 72a is configured in the inner side of the extension 66 of handrail 60, is bonded parts (connection shaft) 68 and connects together with extension 64 and handspike 20.And by the perforation of this connecting member 68, installation portion 72a is fixedly supported upon on handspike 20.

According to such present embodiment, also can bring into play the action effect same with above-mentioned 1-1 embodiment.

; according to present embodiment; owing to being provided with the armrest body 62 that is subject to handspike 20 to support, the fill up handrail 60 anti-parts 70 that sandwich with the gap of handspike 20 in perambulator 10, so can prevent that clothing etc. is clamped in the gap between armrest body 62 and handspike 20.Particularly, according to present embodiment, anti-sandwich parts 70 and have the arcuation part 77 on the cross section of turning cylinder that is orthogonal to handrail 60 and handspike 20 with the profile of arcuation, this arcuation part 77 has along the profile of the mobile route of the rear end 65 of the armrest body 62 of the handrail 60 in rotating.Therefore, arcuation part 77 can be filled up gap with respect to the big or small variation in the gap in the rotation of handspike 20 corresponding to handrail 60.Thus, can prevent more reliably sandwiching of clothing etc.

In addition, according to present embodiment, because the anti-parts 70 that sandwich are fixed on handspike 20 by the connecting member (axle) 68 that handrail 60 and handspike 20 are linked, so the anti-parts 70 that sandwich can be installed securely, assembling also can be carried out easily.

And then, according to present embodiment, prevent that sandwiching parts 70 is bearing on handspike 20 via the tabular installation portion 72a being configured between handspike 20 and the extension 66 of handrail 60.Thereby, can not change significantly the shape of handspike 20 and handrail 60 and prevent sandwiching of clothing etc.

(1-3 embodiment)

Then, mainly utilize Figure 12 to Figure 14,1-3 embodiment is described.

In the 1-3 embodiment shown in Figure 12 to Figure 14, except the anti-structure that sandwiches parts 80 be used for the anti-structure that sandwiches parts 80 of supporting different, the 1-1 embodiment of Fig. 1 to Fig. 7 explanation is substantially identical with utilizing.Give identical Reference numeral and omit the detailed explanation of repetition for identical part.

In addition, Figure 12 is the partial perspective view that represents perambulator 10, and Figure 13 is the part sectional view that represents perambulator 10, and Figure 14 is the figure of the anti-effect that sandwiches parts 80 of explanation.

In Figure 12 to Figure 14, omit the integral structure of perambulator 10, but the integral structure of the perambulator in present embodiment is except being provided with supporting and sandwiching the mechanism of parts 80 towards union lever 30 pushing is anti-on handrail 60, the integral structure of perambulator of 1-1 embodiment of Fig. 4 to Fig. 7 explanation is roughly the same with mainly utilizing.

As shown in figure 13, anti-in present embodiment sandwich parts 80 by the sliding part being formed by sheet material 86 that roughly direction is extended forwards, backwards, be located on the rear end of sliding part 86 and along the carrier being formed by sheet material 84 that roughly above-below direction extends be located at the upper end of carrier 84 and form along the pushing portion 82 being formed by sheet material that roughly fore-and-aft direction extends.On the other hand, on the armrest body 62 of handrail 60, be formed with and accept the track 88 of the anti-sliding part 86 that sandwiches parts 80 from below and be arranged on and the opposed locational protrusion 89 of track 88 across sliding part 86.

Track 88 is erected between a counter-lateral quadrents 64 of armrest body 62, is made up of the sheet material that roughly direction is extended forwards, backwards.The front end of track 88 is connected on the top 63 of armrest body 62.On the other hand, protrusion 89, by forming from top along the sheet material that roughly above-below direction hangs down, disposes the anti-sliding part 86 that sandwiches parts 80 between its end and track 88.Thereby the anti-sliding part 86 that sandwiches parts 80 is supported from below sliding freely along fore-and-aft direction by track 88, and is subject to protrusion 89 to limit the movement of direction up and down.

In addition, as shown in figure 13, above the anti-sliding part 86 that sandwiches parts 80, be provided with Compress Spring 90 anti-sandwiching between the carrier 84 of parts 80 and the protrusion 89 of handrail 60.By this spring 90 to the direction of leaving protrusion 89 to carrier 84 application of forces.

As shown in FIG. 13 and 14, the rear part of the armrest body 62 of handrail 60 is along roughly fore-and-aft direction and track 88 extend substantially in parallel.And, the anti-sliding part 86 that sandwiches parts 80 is configured on track 88, in the situation that preventing that sandwiching parts 80 slides with respect to handrail 60, the anti-pushing portion 82 that sandwiches parts 80 moves substantially in parallel with the rear part of armrest body 62 near the rear end 65 of armrest body 62.In addition, as shown in figure 12, the end profile of the anti-pushing portion 82 that sandwiches parts 80 has the shape corresponding with the profile of the union lever 30 of facing.In the present embodiment, to have roughly circular-arc profile corresponding with union lever 30, and the end profile of pushing portion 82 has circular-arc recess.

In the perambulator 10 forming like that above, even produced gap between handrail 60 and union lever 30 in the time that handrail 60 rotates with respect to union lever 30, also as shown in figure 14, the anti-parts 80 that sandwich are arranged on the anti-spring 90 sandwiching between parts 80 and handrail 60 and are pushed, extend from the rear end 65 of armrest body 62, until be connected on union lever 30.Thereby, can fill up the gap in generation between the rear end 65 of armrest body 62 and union lever 30 by the anti-parts 80 that sandwich.Therefore, can prevent in folding operation or launch clothing in operation etc. and be clamped in the gap of generation between the armrest body 62 of handrail 60 and union lever 30.

Above, according to present embodiment, be provided with and be bearing in sliding freely on handrail 60 and be subject to anti-the sandwich parts 80 of spring 90 towards the union lever application of force.Thereby, can prevent that clothing etc. is clamped in the gap between armrest body 62 and union lever 30.Particularly, sandwich parts 80 and be subject to spring 90 application of forces due to anti-, so even variation has occurred the size in gap during handrail 60 rotates, the anti-parts 80 that sandwich also can be outstanding and until abut to union lever 30 from handrail 60.Thereby, can sandwich parts 80 by the gap filling of size variation by anti-, can prevent more reliably thus sandwiching of clothing etc.

In addition,, according to present embodiment, the anti-anti-mechanism that sandwiches parts 80 of parts 80 and supporting and pushing that sandwiches is configured in (in opening portion) in handrail 60.In addition, they are owing to being made up of very simple structure, thus can not make the size of perambulator entirety and the size of union lever 30 and handrail 60 become than conventionally large, and can prevent sandwiching of clothing etc.

And then according to present embodiment, in the time preventing that sandwiching parts 80 slides with respect to handrail 60, from armrest body 62, the extended anti-pushing portion 82 that sandwiches parts 80 moves near the rear end 65 on the top 63 of armrest body 62.Thereby, also can prevent that clothing etc. is clamped into rear end 65 and anti-the sandwiching between the protrusion 82 of parts 80 of armrest body 62.

And then according to present embodiment, the end profile in the face of union lever 30 of the anti-pushing portion 82 that sandwiches parts 80 has the shape corresponding with the profile of the union lever 30 of facing.Thereby, can sandwich parts 80 more reliably by the gap filling between armrest body 62 and union lever 30 by anti-.

In addition, in the present embodiment, different from above-mentioned 1-1 embodiment, prevent that sandwiching parts 80 is bearing on handrail 60.Thereby, as shown in figure 14, on the upper part of the union lever 30 being formed by tubing, be provided with and cover material 31.

In addition, in the present embodiment, represent the example that track 88 is made up of the sheet material of 64,64 of both sides that is erected at armrest body 62, but be not limited to this, anti-ly sandwiched parts 80 as long as can support sliding freely, can carry out various changes.For example, track also can be by the both sides 64,64 from armrest body 62 mutually facing to giving prominence to the inside and forming along a pair of elongate parts that roughly fore-and-aft direction extends.

(1-4 embodiment)

Then, mainly utilize Figure 15,1-4 embodiment is described.

1-4 embodiment shown in Figure 15 is in the integral structure of the perambulator 10 of the 1-2 embodiment that mainly utilizes Figure 10 and Figure 11 to illustrate, to have combined mainly to utilize the anti-of 1-3 embodiment of Figure 12 to Figure 14 explanation to sandwich parts 80 and support and push the anti-mechanism that sandwiches parts 80.Thereby, in Figure 15, give the Reference numeral identical with the Reference numeral using for identical part in Fig. 1 to Figure 14, and for the integral structure of the perambulator illustrating in 1-2 embodiment and in 1-3 embodiment, illustrate anti-ly sandwich parts 80 and support and push the anti-mechanism that sandwiches parts 80, omit the detailed explanation repeating.

As shown in figure 15, handrail 60 rotates and is attached at freely on handspike 20, prevents that sandwiching parts 80 is bearing on handrail 60 sliding freely, is located at handrail 60 and prevents that the spring 90 sandwiching between parts 80 pushes towards handspike 20.

In such present embodiment, by being bearing in sliding freely on handrail 60 and being subject to anti-the sandwich parts 80 of spring 90 towards handspike 20 application of forces, can prevent reliably that clothing etc. is clamped in the gap of armrest body 62 and handspike 20.Particularly, owing to preventing that sandwiching parts 80 is subject to spring 90 application of forces, so even variation has occurred the size in gap during handrail 60 rotates, the anti-parts 80 that sandwich also can be outstanding until abut to handspike 20 from handrail 60.Thereby, can be by the anti-gap that sandwiches parts 80 and fill up size variation, can prevent more reliably thus sandwiching of clothing etc.

In addition,, according to present embodiment, be provided with in the inner side of handrail 60 (opening portion) and prevent sandwiching parts 80 and support and push the anti-mechanism that sandwiches parts 80.And, because they are made up of very simple structure, thus can not make the size of perambulator entirety and the size of handspike 20 and handrail 60 become than conventionally large, and can prevent sandwiching of clothing etc.

And then according to present embodiment, in the time preventing that sandwiching parts 80 slides with respect to handrail 60, from armrest body 62, the extended anti-pushing portion 82 that sandwiches parts 80 moves near the rear end 65 on the top 63 of armrest body 62.Thereby, also can prevent reliably that clothing etc. is clamped into rear end 65 and anti-the sandwiching between the protrusion 82 of parts 80 of armrest body 62.

And then according to present embodiment, the end profile in the face of handspike 20 of the anti-pushing portion 82 that sandwiches parts 80 has the shape corresponding with the profile of the handspike 20 of facing.Thereby, can sandwich parts 80 more reliably by the gap filling between armrest body 62 and handspike 20 by anti-.

The 2nd embodiment

With reference to the accompanying drawings the 2nd embodiment of the present invention is described.

First, by Figure 16 to Figure 21, the perambulator 190 of the protection arm 118 of having assembled perambulator according to the present invention is described.

Figure 16 is the block diagram that represents the schematic configuration of perambulator of the present invention, and Figure 17 is its vertical profile lateral plan, and perambulator 190 has: pair of right and left foreleg 112, has front-wheel 111; Pair of right and left back leg 114, has trailing wheel 113; Handspike 115, bends to roughly U-shaped; Pair of right and left handrail 116; 2 of left and right pipe 117, the rear end that pivotal mounting this handrail 116 respectively, extends in parallel to each other.

On above-mentioned handrail 116, the top ends of foreleg 112 and back leg 114 is installed at its leading section head lamp brush guard pivot.The foreleg 112 of left and right links stay 122 by the foreleg that doubles as toe board and links, and the back leg 114 of left and right links stay 123 by back leg and links.On above-mentioned back leg 114, the bottom of the bracket 119 of L word shape by axle 119a pivotal mounting, intermediate portion is pivotally mounted on the bottom of above-mentioned pipe 117 by axle 130.; on the bottom of the pipe 117 of above-mentioned left and right; there are frame installation parts 131 (Figure 18) in mutual opposed inner face side respectively by axle 130 pivotal mounting; and then; on this axle 130, the bottom that pivotal mounting the handspike 115 of U-shaped together with being configured in the bracket 119 in the outside of managing 117.

On the midway location of the foreleg 112 of left and right, pivotal mounting the leading section of side frame 124 respectively, and the front end of the side frame 124 of this left and right is linked by front upper lateral part link stay 132.In addition, the rearward end of above-mentioned side frame 124 is fixedly connected on the midway location of said frame installing component 131.On frame installation parts 131, with respect to above-mentioned side frame 124 be fixedly connected with position with above-mentioned axle 130 opposition side lower positions on the outstanding stay installation portion 131a that is provided with, on this stay installation portion 131a, be fixedly connected with rear upper lateral part and linking stay 133, linking stay 133 by this rear upper lateral part the frame installation parts 131 of left and right are linked mutually.On the other hand, on the frame installation parts 131 of above-mentioned left and right, link between stay 133 at above-mentioned axle 130 and rear upper lateral part, the left and right leading section with the back of the body support Supporting fixture 134 of the formation of falling U-shaped by axle 135 pivotal mounting, the back of the body support Supporting fixture 134 of U-shaped is installed (Figure 18) swingably with respect to said frame installing component 131.

On the bottom of pipe 117, the Lock Part 120 that engages, maintains this deployed condition under the deployed condition of perambulator with the free end of above-mentioned bracket 119 is installed slidably.On the other hand, on handspike 115, along handspike 115, the latch-release parts 138 that the long-distance operating device 137 that is located on handspike 115 operates are installed slidably.If by above-mentioned long-distance operating device 137 by above-mentioned latch-release parts 138 pull-ups, via being located at the unlocking lever 139 on latch-release parts 138 and being located at action plate 140 on Lock Part 120 by Lock Part 120 pull-up upward, the locking of bracket 119 is disengaged, can make perambulator main body become 2 folding states, so that foreleg 112 and back leg 114 become the state of almost parallel.

In addition, on the lateral surface of handrail 116 and pipe 117, be installed with to laterally projecting locking protrusion 141 (only having represented one), on handspike 115, be provided with slidably and there is the latch for printed circuit 142 that is engaged to the recess on above-mentioned locking protrusion 141 along handspike 115, by by the pull-up upward of above-mentioned latch for printed circuit 142, handspike 115 is liberated, made to latch for printed circuit 142 rearward or front swings from locking protrusion 141, can make handspike 115 become opposite pushing state or back side pushing state.

The front upper lateral part link stay 132 linking by the side frame 124,124 of above-mentioned left and right and by their leading section forms the seat portion Supporting fixture of U-shaped, in the part being surrounded by above-mentioned seat portion's Supporting fixture and back of the body support Supporting fixture 134, is equipped with base-material 146 for lower seat.That is, above-mentioned lower seat is arranged on the side frame 124 of left and right with the edge, both sides of the 146a of seat portion of base-material 146, and the front end edge of the 146a of seat portion is arranged on front upper lateral part link stay 132.The edge, both sides that is connected to the back of the body support 146b on the above-mentioned seat 146a of portion is arranged on the 134a of side frame portion of left and right of back of the body support Supporting fixture 134.And then it is upper that the edge, rear end of back of the body support 146b is arranged on the 134b of horizon bar portion that the 134a of side frame portion of the left and right of above-mentioned back of the body support Supporting fixture 134 is linked, above-mentioned lower seat is opened and is established with tensioning state on fore-and-aft direction and left and right directions with base-material 146.And, sewing up lower seat tension part 147 in the rear side of opening the 146a of seat portion that is located at the lower seat base-material 146 on portion's Supporting fixture.The leading section of this lower seat tension part 147 under the deployed condition of perambulator, be arranged on be located at than the pivotal mounting axle 135 of back of the body support Supporting fixture 134 on the lower locational rear upper lateral part link on stay 133 (Figure 17).So the 146a of seat portion of above-mentioned lower seat is also stretched rearward by lower seat tension part 147, becomes the state being stretched from four directions, can make more reliably lower seat base-material 146 become tensioning state.

In addition, be provided with the rear side of back of the body support Supporting fixture 134 of lower seat 146, disposing gradient on the pipe 117 that is fixedly connected on left and right and open to establish and be with 148, establishing the length with 148 by regulating this gradient to open, can regulate the angle of inclination of back of the body support 146a.

Like this, by lower seat is opened and is set as tensioning state on fore-and-aft direction and left and right directions with base-material 146, can maintain the rigidity of lower seat, can not need the such sheet material of perambulator in the past, can realize lightweight.And, because linking stay 133, rear upper lateral part is located at than the pivot position on the lower of back of the body support Supporting fixture 134, even so lower seat is bending under newborn child's Gravitative Loads with base-material 146, buttocks can not encountered above-mentioned rear upper lateral part yet and link on stay 133, can not produce sense of discomfort.

On the other hand, as shown in figure 18, by pipe 117 and the axle 130 that links of frame installation parts 131, pivotal mounting the leading section of the side plate 150 of the newborn child's of protection sidepiece.In addition; as shown in figure 19; on the 134b of horizon bar portion of the 134a of side frame portion of left and right that links above-mentioned back of the body support Supporting fixture 134; in its left and right portion, be provided with bearing 151,151; on this bearing 151,151, the bottom of the headrest (head rest) 152 of the newborn child's of protection head by axle 153 pivotal mounting.And then, in the portion of the left and right sides of above-mentioned headrest 152, to give prominence to and be provided with pin 154, this pin 154 is fastened in the slotted hole 155 in the rearward end that is formed at above-mentioned side plate 150.

Figure 18 is the figure that represents above-mentioned back of the body support Supporting fixture 134 to topple over, make the state that newborn child lies down, and headrest 152 becomes the state of holding up upward with respect to the plane of above-mentioned back of the body support Supporting fixture 134.So, open the length of establishing with 148 if regulate above-mentioned gradient, increase as shown in Figure 20 the angle of inclination of above-mentioned back of the body support Supporting fixture 134, side plate 150 also tilts mobile thereupon upward, by engaging of pin 154 and slotted hole 155, headrest 152 swings to clockwise direction centered by axle 153 in Figure 18, and headrest 152 becomes same plane substantially with back of the body support Supporting fixture 134.On the other hand, under the state shown in Figure 20, open to establish and be with 148 if loosen gradient, side plate 150 swings downwards together with back of the body support Supporting fixture 134, and headrest 152 becomes the state shown in Figure 18 thereupon swinging upward, can protect newborn child's head.

In addition, in the case of making the state of above-mentioned 2 foldings, side plate 150 is become after the state shown in Figure 20 together with back of the body support Supporting fixture 134, be located at the long-distance operating device 137 on handspike 115 by operation, can be similarly folding with perambulator in the past.In Figure 21, represent the state of back of the body support Supporting fixture 134 and the side plate 150 etc. of this folded state.

Then, by Figure 16 and Figure 22 to Figure 25, the protection arm 118 of perambulator of the present invention is illustrated in greater detail.

Here, Figure 22 to Figure 25 is the figure that represents the explanation of protection arm 118.

As shown in Figure 16 and Figure 22, protection arm 118 extensions of perambulator of the present invention are configured between the pair of armrests 116 of perambulator, and are made up of the centre part 185 that is attached at the pair of end portions 180 in pair of armrests 116 and be located between pair of end portions 180.

As shown in Figure 16, Figure 22 and Figure 23; centre part 185 extends between pair of armrests 116, and has resilient core part 170, arranges and the soft a pair of soft parts 161 and be located on the outer surface of each soft parts 161 and protect the guard block 162 of soft parts 161 than core part 170 across core part 170.

Wherein, as shown in figure 23, the soft resinoid parts 171 that are configured on polypropylene tape 172 by polypropylene tape (hard parts) 172, side by side form core parts 170.Wherein, soft resinoid parts 171 are made up of soft resinoid parts 171a and soft resinoid parts 171b, are 2 layers of structures.

In addition, as shown in figure 23, on the outer surface of guard block 162, be provided with removable exterior with base-material 163.

In addition, as shown in figure 24, be provided with discretely core part 170 and a pair of soft parts 161, core part 170 and soft parts 161 are not fixed by lining cement etc.

That is, as shown in figure 24, the protected parts 162 of each soft parts 161 cover outer surface, and each soft parts 161 are arranged in core part 170 across guard block 162.

In the case, the protected parts 162 of each soft parts 161 cover outside, and guard block 162 is from the sidepiece of soft parts 161 to the inside around entering.Therefore, between core parts 170 and each soft parts 161, be folded with guard block 162, between each soft parts 161 and core parts 170, be formed with space 161a, 161a.In addition, in the both sides of core parts 170 with exteriorly also form space 170a, 170a between with base-material 163.

Then, the effect of the present embodiment being made up of this structure is described.

As mentioned above, the core part 170 of protection arm 118 is made up of the polypropylene tape 172 configuring side by side and soft resinoid parts 171.Wherein, polypropylene tape 172 is parts of harder hard, and soft resinoid parts 171 have elasticity.Therefore, protection arm 118 can be realized suitable intensity by the hardness of the polypropylene tape of core part 170 172, and can trying hard to recommend back on polypropylene tape 172 will be acted on by the soft resinoid parts 171 of core part 170, so can prevent that excessive masterpiece is used on polypropylene tape 172, can improve the durability of protection arm 118.

Like this, by using and there are elastomeric soft resinoid parts 171, can effectively improve the durability of protection arm 118 together with polypropylene tape 172.In addition generally lightweight than polypropylene tape 172 of the weight of soft property resin component 171.Therefore, the polypropylene tape 172 thicker with used thickness improves compared with the situation of durability of protection arm 118, can alleviate the weight of protection arm 118.

In addition, because core part 170 is by the harder polypropylene tape 172 being set up in parallel with have elastomeric soft property resin component 171 and form, so even if make protection arm 118 up-and-down movement repeatedly, the shape of protection arm 118 also can not be out of shape and be kept certain shape.

; in the situation that only using polypropylene tape 172 as core part 170; owing to there is no elasticity in polypropylene tape 172; if so make protection arm 118 up-and-down movement repeatedly; the shape of protection arm 118 is out of shape from original shape, but as in the present embodiment, by using the core part 170 being formed by polypropylene tape 172 and soft property resin component 171; due to the elasticity of soft property resin component 171, protection arm 118 can be from the distortion of original shape and maintain shape between can be for a long time.

In addition, because soft parts 161 have soft property than core part 170, so feeling can make to hold protection arm 118 time improves.In addition, because soft parts 161 are from outside supporting core part 170, so can strengthen durability and the elasticity of the protection arm 118 mainly obtaining by core part 170.

In addition, as shown in figure 23, on the outer surface of guard block 162, be provided with exterior with base-material 163.Therefore, can make the hand sense of touch of protection arm 118 improve.In addition, due to exterior with base-material 163 be dismounting freely, so can easily change the outward appearance of protection arm 118.

In addition, as shown in figure 24, core part 170, soft parts 161 and guard block 162 by exterior cover with base-material 163 around, and be subject to exteriorly to push from outside with base-material 163.In addition, not bonding by lining cement etc. between core part 170 and soft parts 161, and soft parts 161 are arranged in core part 170 with the state separating via the guard block 162 of the inner side that is wound up into soft parts 161.Therefore,, in the situation that making protection arm 118 direction moves up and down (with reference to Figure 25), soft parts 161 can freely slide in core part 170, can prevent soft parts 161 to apply excessive burden.

In addition, as shown in figure 24, the protected parts 162 of soft parts 161 cover outer surface, and soft parts 161 clip guard block 162 and are arranged in core part 170.Like this, by guard block 162 is clipped between soft parts 161 and core part 170 and can clamps guard block 162, so can prevent that guard block 162 from departing from from soft parts 161.

Then, utilize Figure 26, the variation of protection arm 118 is described.

In the variation of the protection arm 118 shown in Figure 26, replace by polypropylene tape 172 and be configured in side by side the core part 170 that the soft property resin component 171 on polypropylene tape 172 forms, use by soft property resin component 171 and clip the core part 170 that a pair of polypropylene tape 172 that soft property resin component 171 arranges forms, other are identical with the embodiment cardinal principle shown in Figure 22 to Figure 25.

In the variation shown in Figure 26, give identical Reference numeral and omit detailed explanation for the part identical with the embodiment shown in Figure 22 to Figure 25.

As shown in figure 26, clip soft property resin component 171, a pair of polypropylene tape 172 is set on the two sides of soft property resin component 171.Therefore, can make to be applied to force balance in core part 170 is distributed to well soft property resin component 171 and is located at each polypropylene tape 172 on the two sides of soft property resin component 171.Therefore, can further improve the durability of protection arm 118, and can prevent from reliably making protection arm 118 from original shape distortion because of up-and-down movement repeatedly.

According to the present invention, even if can provide light and durability is high, having Reusability can be from the protection arm of the perambulator of the constancy of original alteration of form between long-term yet.

The 3rd embodiment

Figure 27 be represent to make seat itself that above-mentioned newborn child takes with respect to the dismounting of perambulator main body freely, this seat can be changed to selectively to the figure of the schematic configuration of the perambulator to surface state or back side state.Perambulator 210A possesses perambulator main body 210, and this perambulator main body 210 has: the foreleg 212 of pair of right and left, has the front-wheel 211 of dicycly; The back leg 214 of pair of right and left, has the trailing wheel 213 being made up of single-wheel; Handspike 215, with roughly U-shaped bending; The handrail 216 of pair of right and left; Double as the front side connecting member 217 for toe board.One end that pivotal mounting handrail 216 respectively on each front portion of the left and right of above-mentioned handspike 215, is installed with foreleg 212 at the other end head lamp brush guard pivot of this each handrail 216.In addition, the upper end of the back leg 214 of left and right is pivotally mounted on the pars intermedia of handrail 216, and on the pars intermedia of the back leg 214 of this left and right, being provided with to advance and retreat is located at the hooking sheet 215a on above-mentioned handspike 215.On the other hand, the back leg 214 of above-mentioned left and right is linked by rear side connecting member 218, and the foreleg 212 of left and right is linked by front side connecting member 217.And then, the front end of union lever 219 is installed at the pars intermedia head lamp brush guard pivot of each foreleg 212, the rear end of this union lever 219 is pivotally mounted on the pars intermedia of the bracket of the L word shape of pivotal mounting on handspike 215 and back leg 214 respectively.

In above-mentioned perambulator main body 210, by the 222a of armrest portion of infant seat 221 is fastened on handrail 216 from top mounting, mounting is fixed wtih infant seat 221.So, by selectively above-mentioned infant seat 221 back to front being arranged in perambulator main body 210, can become the hand push state at the back side or the hand push state on opposite from newborn child.

In addition,, in Figure 28, Reference numeral 230 is the drg bearings that are arranged on respectively on the bottom of back leg 214 of left and right.Drg bearing 230 (only having represented in the drawings one) in left and right is upper, is separately installed with 1 axletree of rear wheel 231.That is, the plastic tubular collar 232 is installed on axletree of rear wheel 231, this axletree of rear wheel 231 inserts and is arranged in the axis hole 233 of above-mentioned drg bearing 230.The collar 232 of tubular is positioned on the end of above-mentioned axletree of rear wheel 231, outstanding from the mutual opposed side of the drg bearing 230 of left and right.On the axletree of rear wheel 231 outstanding from the another side of above-mentioned drg bearing 230, as shown in figure 29, the trailing wheel 213 being made up of single-wheel is installed.

On the other hand, on above-mentioned drg bearing 230, with from the adjacent position of the collar 232 of the outstanding tubular of above-mentioned drg bearing 230, form teat 234 for link oriented and that these collar 232 parallel directions are outstanding.With on the side of teat 234, be provided with the pawl 237 being fastened in the connecting hole 236 being formed on the connecting piece 235 that the drg bearing 230 of left and right is linked in above-mentioned link.Above-mentioned connecting piece 235 forms with the tubular of substantially elliptical, on the other hand, a part that forms oval outer rim from the collar 232 of the outstanding tubular of drg bearing 230 and the link adjacent with this collar 232 with teat 234, connecting piece 235 has the oval inner edge corresponding with this ellipse outer rim.

So, after in as described above axletree of rear wheel 231 insertions being arranged on to drg bearing 230, be pressed into teat 234 end of connecting piece 235 from the collar 232 of the outstanding tubular of drg bearing 230 and the link adjacent with this collar 232, be fastened in the connecting hole 236 of being located on connecting piece 235 by making to be formed at the pawl 237 of link on teat 234, by connecting piece 235, the drg bearing 230 of left and right linked mutually.

Like this, in the present embodiment, because the collar 232 that is installed on the tubular on axletree of rear wheel 231 is pressed in connecting piece 235, so can prevent by this collar 232 generation of the vibration noise of 235 of connecting pieces.In addition, be engaged in the connecting hole 236 of being located on connecting piece 235 and the drg bearing 230 of left and right is linked mutually with the pawl 237 on teat 234 by making to be formed to link.Therefore, in the link of connecting piece 235 and the drg bearing 230 of left and right, do not need to use special connecting member, can realize reduction and the lightweight of parts number of packages.

In addition, in the above-described embodiment, represented to be applied to infant seat can be changed before and after towards and be installed in the perambulator in perambulator main body, but the perambulator being made up of single-wheel as long as the trailing wheel of left and right is just passable, certain perambulator of type come what may can both be suitable for.

As described above, the axletree that axle is being supported to the trailing wheel being made up of single-wheel is arranged in the bearing of the pair of right and left on the back leg that is installed on respectively left and right, by connecting piece, the drg bearing of above-mentioned left and right is linked in the present invention.Therefore, axletree of rear wheel can be made to one-sided each one, can be by rectangular axletree of rear wheel in the past be only arranged to 1 by lightweight quantification.And then, owing to only by connecting piece, the drg bearing of above-mentioned left and right being linked, so can expendable weight compared with connecting member in the past.

Claims (3)

1. a protection arm for perambulator extends and configures between the pair of armrests of perambulator, and is made up of the centre part that is attached at the pair of end portions in pair of armrests and be located between pair of end portions, it is characterized in that,

Centre part possesses:

Core part is extended between pair of armrests, and has elasticity;

A pair of soft parts, clip the setting of core part, more soft than core part;

Guard block, is located on the outer surface of each soft parts, and protects soft parts;

Core part is made up of hard parts and the soft resinoid parts that are configured in side by side on hard parts,

Each soft parts cover outer surface by guard block, and guard block is from the sidepiece of soft parts to the inside around entering, and each soft parts clip guard block and are arranged in core part,

Between each soft parts and core part, be formed with space.

2. the protection arm of perambulator as claimed in claim 1, is characterized in that, hard parts are made up of polypropylene tape.

3. the protection arm of perambulator as claimed in claim 1, is characterized in that, is provided with the dismounting exterior base-material of using freely on the outer surface of guard block.