CN202669381U

CN202669381U - Caster for luggage

Info

Publication number: CN202669381U
Application number: CN 201220325163
Authority: CN
Inventors: 山口渥
Original assignee: HINOMOTOJOSAKI CO Ltd
Current assignee: HINOMOTOJOSAKI CO Ltd
Priority date: 2012-07-05
Filing date: 2012-07-05
Publication date: 2013-01-16
Anticipated expiration: 2022-07-05
Also published as: JP2014015199A

Abstract

The utility model provides a caster for a luggage; the caster for the luggage comprises a mounting chassis, a rotating shaft, a fork part, a wheel and a rotating shaft gasket, wherein the mounting chassis is fixed on the luggage; the rotating shaft is fixed on the mounting chassis; the fork part is provided with a rotating bearing, which is combined with the rotating shaft in a freely rotatable way; the wheel is supported on the fork part in a freely rotatable way and comprises a wheel axle, a rim and a tire; the rotating shaft comprises a clamping part, a main body part and a base part, wherein the clamping part is positioned at the top end part of the rotating shaft far away from the wheel; the main body part is connected with the clamping part; the base part is connected with the main body part; the main body part is larger than the clamping part in a radial direction of the rotating shaft; and the base part is larger than the main body part in the radial direction of the rotating shaft and thinner than the main body part and the clamping part in an axial direction of the rotating shaft; furthermore, in a mounted state of the caster for the luggage, the clamping part is clamped together with the rotating shaft gasket, so that the rotating shaft is fixed on the mounting chassis; and the base part is used for supporting the rotating bearing of the fork part in a freely rotatable way, so that the fork part can freely rotate relative to the rotating shaft.

Description

Luggage castor

Technical field

The utility model relates to a kind of luggage castor, particularly a kind of luggage castor of installing and changing to the case and bag body easily.

Background technology

In the past, when being installed to castor on the case and bag, the adapter plate of castor was fixed on the case and bag by bolt, rivet from the inboard of case and bag.But, because this method install, comparatively bothersome when changing, so adopt with castor be installed to adapter plate guide housing method or be inserted into the method for installing in the hole of adapter plate by the installation shaft with castor.Below, enumerate several therewith examples of relevant prior art.

Patent documentation 1 disclosed " castor installation constitution " stability better can reclaim.Shown in Fig. 4 (a), in the axis hole 612 of the lower surface that is opened in pin body 611, be pressed into the upper end 613a of caster axle 613.Be pressed into the bottom 613b of caster axle 613 at the axis hole 614 of the upper surface open of castor body 615.Make the chimeric intensity of axis hole 614 of the bottom 613b of chimeric intensity ratio caster axle 613 of axis hole 612 of the upper end 613a of caster axle 613 and pin body 611 and castor body 615 large.

Patent documentation 2 disclosed " castor " price is low, repeatedly installing/dismounting, installation exercise are comparatively easy.Shown in Fig. 4 (b), castor 660 is installed in the foot 650 of chair, the removable chair that freely supports.By support frame 661 rotatable freely support wheel 663.With spindle unit 640 support frame 661 is installed in foot 650 by installing.Install and have bottom axial region 643 and top axial region 641 with spindle unit 640.Bottom axial region 643 rotatable free and can not be installed on support frame 661 with axially extracting.Top axial region 641 extends upward from support frame 661, is installed in the embedded hole 651 that is formed at foot 650.Be formed with screw part 642 on the peripheral part of top axial region 641, these screw part 642 diameters are larger than embedded hole 651, and are made of a plurality of spiral ridge 642c that can embed reluctantly embedded hole 651.

Patent documentation 3 disclosed " the castor structure of foot " can be easily mounted to from the horizontally extending tubular of socle foot.Shown in Fig. 4 (c), the wheel 711 rotatable free earth's axis are supported in the top of supporting yoke 712.Installation shaft 714 is fixed on the cardinal extremity of supporting yoke 712.Cylindrical bearing section 713 intercalations of castor body installation portion 716 have installation shaft 714 and remain can rotate under vertical state freely.Mounting box 715 stretches out to the direction vertical with the length direction of cylindrical bearing section 713 from castor body installation portion 716.Simple structure, the profile of castor body installation portion 716 is better.

Patent documentation 4 disclosed " the castor installation constitution of chair " outward appearance is better, and the Design freedom of talaria section is larger, and installation exercise is comparatively simple.Shown in Fig. 4 (d), the bottom 761a embedding from talaria section 761 in talaria section 761 has cover body 765.Cover body 765 locks with talaria section 761 by anticreep protuberance 767 and anti-bias protuberance 763.In the hole 766 that is arranged at cover body 765 bottom surface 765a, be pressed into the 769a of pitman section of castor 769.

Patent documentation 5 disclosed " suitcase castor " cost is low, and the replacing of castor head part is repaired comparatively simple.Shown in Fig. 4 (e), consist of castor section assembly 820 by wheel assembly 822, wheel shaft 824 and castor head 826.Consist of base portion assembly 860 by caster base 862, caster axle 864 and baseplate 866.Centre hole 826c at castor head 826 embeds caster axle 864, forms castor 800.By being arranged at respectively the tapped bore 869 on caster base 862 and the baseplate 866, by bolt etc. castor 800 is installed on the suitcase.Castor head 826 is kept by the recess 864a on the top of caster axle 864.

Patent documentation 1: Japanese kokai publication hei 07-246802 communique

Patent documentation 2; Japanese kokai publication hei 07-257107 communique

Patent documentation 3: Japanese kokai publication hei 09-240204 communique

Patent documentation 4; TOHKEMY 2002-272552 communique

Patent documentation 5; TOHKEMY 2003-146003 communique

But there are the following problems for castor in the past.Because the employed castor such as chair, hand barrow is different from the mode that applies load of luggage castor, so the replacing method of the castor of chair etc. intactly can not be applicable to case and bag.Insert the method for castor because get loose easily, so be not durable at case and bag.In the method for changing decomposing castor, the number of components of castor is more, and cost is high.Screw in the method for castor at case and bag, bolt can be obstacle to interior side-prominent the forming of case and bag when installing to case and bag.Adopt in the method for the axis of cone cost cost aspect the moulding of the axis of cone at rotary shaft.

The utility model content

In order to address the above problem, the utility model provides a kind of luggage castor, and this luggage castor has: the installation chassis that is fixed in case and bag; Be fixed in the rotary shaft of installation chassis; Have with rotary shaft can freely circle round the fork of convolution bearing of ground combination; The wheel that can be supported in fork with rotating freely, be consisted of by axletree, wheel rim and tire; With the rotary shaft pad; Wherein, rotary shaft comprises the engagement section that is positioned at away from the top ends of wheel, the main part that links to each other with the engagement section, the base portion that links to each other with main part, wherein, main part is upwards large than the engagement section in the footpath of rotary shaft, and base portion the footpath of rotary shaft upwards larger than main part and rotary shaft axially on thinner than main part and engagement section; Further, under the installing condition of luggage castor, the engagement section engages with the rotary shaft pad, thereby rotary shaft is fixed in installation chassis; Base portion can freely support the convolution bearing of fork with circling round, so that fork can rotate freely with respect to rotary shaft.

Preferably, according to luggage castor provided by the utility model, the rotary shaft pad is annular arrangement; Further

Under the installing condition of luggage castor, the through hole at rotary shaft pad center is passed on the top of engagement section, and the top of engagement section is out of shape to be buckled on the outside face of rotary shaft pad by conquassation.

By such structure, not only can utilize simple structure that luggage castor is installed, and so that the castor difficult drop-off after installing, and be convenient to change.

Preferably, according to luggage castor provided by the utility model, comprise further that rotary shaft is accepted insurance to hold pad; Further under the installing condition of luggage castor, rotary shaft is accepted insurance and is held pad between convolution bearing and installation chassis, and rotary shaft is accepted insurance and held pad and be formed with at least one lubricated through hole.

Preferably, according to luggage castor provided by the utility model, rotary shaft is accepted insurance and is held pad and form annular arrangement, and at least one lubricated through hole is arranged in order along circumferencial direction.

By such structure, the user can utilize that setting in advance accepts insurance at rotary shaft holds lubricating grease (lubricant) at least one lubricated through hole on the pad etc. and be lubricated between to convolution bearing and mounting base, thereby effectively lubricated the convolution bearing with respect to the rotation of mounting base, and issuable noise when greatly reducing the convolution bearing and rotating with respect to mounting base.

Following according to the disclosed purpose of the utility model, effect, and structural configuration, enumerate preferred embodiment, and cooperate accompanying drawing to describe in detail.

Description of drawings

Fig. 1 is according to the side cross-sectional view of luggage castor of the present utility model when the installing condition;

Fig. 2 is shown in Figure 1 according to the cross sectional elevation of luggage castor of the present utility model when the installing condition;

Fig. 3 is the three-dimensional view of the fork with convolution bearing according to luggage castor of the present utility model shown in Figure 1;

Fig. 4 (a)-Fig. 4 (e) is the scheme drawing of castor of the prior art.

The specific embodiment

Below with reference to accompanying drawing more excellent embodiment of the present utility model is described.

Figure of description 1 is according to the side cross-sectional view of luggage castor of the present utility model when the installing condition.Figure of description 2 is shown in Figure 1 according to the cross sectional elevation of luggage castor of the present utility model when the installing condition.Can know, to have according to luggage castor provided by the utility model according to Figure of description 1 to 2: the installation chassis 1 that is fixed in case and bag; Be fixed in the rotary shaft 2 of installation chassis 1; Have with rotary shaft 2 can freely circle round the fork 3 of convolution bearing 4 of ground combination; The wheel 5 that can be supported in fork 3 with rotating freely, be consisted of by axletree 51, wheel rim 52 and tire 53.Rotary shaft pad 6.Rotary shaft 2 comprise the engagement section 21 that is positioned at away from the top ends of wheel 5, link to each other with engagement section 21 main part 22, the base portion 23 that links to each other with main part 22.Main part 22 is upwards large than engagement section 21 in the footpath of rotary shaft 2, and base portion 23 the footpath of rotary shaft 2 upwards larger than main part 22 and rotary shaft 2 axially on thinner than main part 22 and engagement section 21.Further, under the installing condition of luggage castor, engagement section 21 engages with rotary shaft pad 6, thereby rotary shaft 2 is fixed in installation chassis 1.Base portion 23 can freely support the convolution bearing 4 of fork 3 with circling round, so that fork 3 can rotate freely with respect to rotary shaft 2.

More specifically, shown in Fig. 1-2, according to the luggage castor that this preferred embodiment provides, rotary shaft pad 6 is annular arrangement.And under the installing condition of luggage castor, the through hole at rotary shaft pad 6 centers is passed on the top of engagement section 21, and the top of engagement section 21 is out of shape to be buckled on the outside face of rotary shaft pad 6 by conquassation.

By such structure, by so that the through hole at rotary shaft pad 6 centers is passed on the top of engagement section 21, then so that the top of engagement section 21 is out of shape to be buckled on the outside face of rotary shaft pad 6 by conquassation, engagement section 21 can not break away from (such as the downward direction the Figure of description 1) from mounting base along the axial direction of this rotary shaft 2.Therefore, by simple structure luggage castor is installed, and so that the castor difficult drop-off after installing, and be convenient to change.

In the above-mentioned preferred embodiment of the utility model, engaging by so that the through hole at rotary shaft pad 6 centers is passed on the top of engagement section 21 of engagement section 21 and rotary shaft pad 6, and the top of engagement section 21 is out of shape to be buckled in by conquassation and realizes on the outside face of rotary shaft pad 6.But the utility model is not limited in this, to those skilled in the art, can use and designs needs and select arbitrarily the mode that engages between this engagement section 21 and the rotary shaft pad 6 according to actual.For example, can be in the engagement section 21 top ends be formed with the groove corresponding with rotary shaft pad 6, and so that rotary shaft pad 6 embeds these grooves, to realize engaging of engagement section 21 and rotary shaft pad 6.

More specifically, in this preferred embodiment, installation chassis 1 is provided with the through hole that holds rotary shaft 2, and the top correspondence position of this through hole and engagement section 21 offers the larger recess of diameter, with top and the rotary shaft pad 6 of accommodating engagement section 21, shown in Fig. 1-2.By such structure, can so that the top of engagement section 21 in the respective recess of installation chassis 1, realize engaging with rotary shaft pad 6, thereby can not affect outer surface smooth of installation chassis 1, and then can not affect the installation convenience of installation chassis 1.

Further, preferably, as shown in Figure 3, according to luggage castor provided by the utility model, comprise further that rotary shaft is accepted insurance to hold pad 8.Under the installing condition of luggage castor, rotary shaft is accepted insurance and is held pad 8 between convolution bearing 4 and installation chassis 1, and rotary shaft is accepted insurance and held pad 8 and be formed with at least one lubricated through hole.More specifically, as shown in Figure 3 according to luggage castor provided by the utility model, rotary shaft is accepted insurance and is held pad 8 and form annular arrangement, and at least one lubricated through hole 81 is arranged in order along circumferencial direction.

By such structure, the user can be before installation accepts insurance to hold at least one lubricated through hole 81 on the pad 8 at rotary shaft in advance lubricating grease (lubricant) is set, setting in advance accepts insurance at rotary shaft holds lubricating grease (lubricant) at least one lubricated through hole 81 on the pad 8 etc. and is lubricated between to convolution bearing 4 and mounting base 1 thereby can utilize, thereby effectively lubricated convolution bearing 4 with respect to the rotation of mounting base 1, and issuable noise when greatly reducing convolution bearing 4 with respect to mounting base 1 rotation.

More specifically, shown in Figure of description 3, in preferred embodiment of the present utility model, the top surface of convolution bearing 4 is provided with the adapted recess 9 that adaptive rotary shaft is accepted insurance and held pad 8.By this adapted recess 9 is set, can be so that the top surface of convolution bearing 4 keep smooth, thus can not affect convolution bearing 4 with respect to the rotation of installation chassis 1 and convenience is installed.

More than be preferred embodiment of the present utility model and accompanying drawing, only have preferred embodiment and accompanying drawing to be illustrated, it is not the interest field for restriction the utility model technology, all interest fields that is contained take identical technological means or as following claim content are implemented, and all do not break away from category of the present utility model but applicant's interest field.

Claims

1. a luggage castor is characterized in that, this luggage castor has: the installation chassis that is fixed in case and bag; Be fixed in the rotary shaft of described installation chassis; Have with described rotary shaft can freely circle round the fork of convolution bearing of ground combination; The wheel that can be supported in described fork with rotating freely, be consisted of by axletree, wheel rim and tire; With the rotary shaft pad; Wherein, described rotary shaft comprises the engagement section that is positioned at away from the top ends of described wheel, the main part that links to each other with described engagement section, the base portion that links to each other with main part, wherein, described main part is upwards large than described engagement section in the footpath of described rotary shaft, and described base portion the footpath of described rotary shaft upwards larger than described main part and described rotary shaft axially on thinner than described main part and described engagement section; Further,

Under the installing condition of described luggage castor, described engagement section engages with described rotary shaft pad, thereby described rotary shaft is fixed in described installation chassis; Described base portion can freely support the described convolution bearing of described fork with circling round, so that described fork can rotate freely with respect to described rotary shaft.

2. luggage castor according to claim 1 is characterized in that,

Described rotary shaft pad is annular arrangement; Further

Under the installing condition of described luggage castor, the through hole at described rotary shaft pad center is passed on the top of described engagement section, and the top of described engagement section is out of shape to be buckled on the outside face of described rotary shaft pad by conquassation.

3. luggage castor according to claim 1 and 2 is characterized in that, comprises further that rotary shaft is accepted insurance to hold pad; Further

Under the installing condition of described luggage castor, described rotary shaft is accepted insurance and is held pad between described convolution bearing and described installation chassis, and described rotary shaft is accepted insurance and held pad and be formed with at least one lubricated through hole.

4. luggage castor according to claim 3 is characterized in that, described rotary shaft is accepted insurance and held pad and form annular arrangement, and described at least one lubricated through hole is arranged in order along circumferencial direction.