CN1020547C - Suitcase and roller or caster assembly thereof - Google Patents

Abstract

Suitcase with wheels 13 or rollers mounted on an axle 22 and rotatable. The shaft 22 is fixed to a hard rubber elastic damper 23 having a disk shape. Which in turn is attached to a mounting plate 24 secured to a wall 26 of the tank. This construction enables the vibrations generated by the contact of the wheels 13 with the ground to be absorbed before they are transmitted to the box.

Description

Suitcase and its roll assembly or caster assembly

The present invention relates to have roller, the contact to earth suitcase of device of castor or other.These wheels all stretch out from the case shell.Casing can rely on these devices that contact to earth to slide carrying like a cork.

Such chest had description in Britain 2030966A.The wheel seat of this structure and tank shell integral molded plastic.Tank wall is passed at the wheel shaft two ends, and is supported by tank wall.

Another kind of structure was described in Britain 2116149A, and its wheel shaft is fixed on one and is connected on the plate on the tank shell by screw.

The shortcoming of known structure is that the installation of roller or castor is a rigidity.When the case wheel rolled across on the up-and-down ground, vibration was passed to casing from the device that contacts to earth that is rotating, and the noisy assorted noise when causing walking also causes the Unit Installation structural failure of contacting to earth easily.

At first, according to the present invention, the assembly that the rotating device that contacts to earth is installed on the casing includes an axle, is contained in the rotating device that contacts to earth on the axle, and handle component is installed in the assembly structure on the casing, elastic vibration clamper, this vibration absorber is fixed on the assembly structure on the one hand, links to each other with above-mentioned axle again simultaneously, by such structure, by means of the assembly that is installed on the casing, vibration absorber can weaken the vibration that the device that contacts to earth brings.

Owing to cross kind of a structure, the device that contacts to earth contacts the vibration that produces and just was absorbed before passing to casing with ground.If casing begins swing, the shock absorber swing that can decay.Structure when the contact to earth rotation of device of utilization comes the movable case period of the day from 11 p.m. to 1 a.m, can easilyer control chest more easily, and noise is little.Assembly structure is not fragile.

Elastic vibration clamper preferably uses an elastic colloidal material manufacturing.For a kind of chest of particular design, rubber hardness is that Shore hardness 50 to 60ShoreA is advisable.The weight that different box sizes and casing carry possibly determines various chests to be suitable for the rubber hardness of employing, and chest is more little, and load is light more, and needed hardness is low more.

The inner of axle can broadening, constitutes the expansion installed surface, so that elastic vibration clamper is fixed thereon.Preferably axle is installed on the installing plate that is directly fixed on casing by vibration absorber.

We find to vulcanize is a kind of method of attachment easily, can guarantee elastic vibration clamper respectively with installed part and with the axle strong bond, the method for other fixedly elastic vibration clamper has and bondingly is connected with screw.

Secondly, according to the present invention, chest has the device that contacts to earth that can rotate around the axis.Elastic vibration clamper is fixed on the axle on the one hand.Also be fixed on the outer surface of casing simultaneously, the device that contacts to earth can be a wheel, castor, roller etc.

Referring to accompanying drawing embodiments of the invention are described for example.

Fig. 1 is the side view that the suitcase of wheel assembly is equipped with in the present invention.

Fig. 2 is Fig. 1 raising middle flask wheel assembly enlarged detailed.

Fig. 3 is the profile along 3-3 line among Fig. 2.

Fig. 4 is the profile of the wheel assembly after the present invention improves.

Fig. 5 is the cutaway view of the another kind of wheel assembly of the present invention.

Fig. 6 is the front view according to casing of the present invention institute foot wheel assembly.

Fig. 7 be casing of the present invention with the front view of roll wheel assembly.

Referring to accompanying drawing.Chest 10 comprises divided into two parts, stiff case 11 for example made of plastic.Chest has one to carry handle 12.

For the ease of carrying loaded van, at chest one end inferior horn 14 one wheel pairs 13 is housed, and on case a hinged caster assembly therefor 15.The general orientation handle is that folded flat is embedded on the tank wall.But when utilizing the wheel 13 movable case period of the day from 11 p.m. to 1 a.m of case lower end, can the handle plate open that to be used for be the chest guiding.

On each limit of chest inferior horn 14 recess 16 is arranged all, be used for holding respectively two wheels 13.

Each wheel assembly all comprises wheel hub 17, and tire 18 is arranged on the wheel rim.

Wheel is installed in rotation on the cantilever minor axis 19, and minor axis is by the central axial open 20 on the wheel.One annular flange dish 21 is arranged in the minor axis inner end.And the dop on the axle outer end is clamped in wheel on the axle.

Minor axis is fixed on the hard rubber disk 23 by its ring flange 21, and rubber disc is fixed on the installing plate 24 that roughly is fan-shaped.

Wheel assembly is fixed in the recess of tank wall, for example, uses the rivet or the screw 25 that pass installing plate 24 and tank wall 26 parts to fix.

Installing plate 24 and minor axis 19 can be made with metal.The rubber damping device preferably is fixed on minor axis and the installing plate by vulcanizing.Coated with adhesive behind minor axis and the installing plate removal oil stain.Then, parts put into vulcanize in the mould bonding.We find to utilize this process can make the very strong bonding force of generation between rubber disc 23 and minor axis and the installing plate.These parts also can pass screw and the rubber damping device that minor axis ring flange and installing plate inject rubber by suitable adhesive or use and fix.

Rubber is the hard rubber of Shore hardness between 55-60ShoreA.Rubber must not be soft excessively.Otherwise because wheel and tank wall friction are difficult to mobile chest.On the other hand, rubber again must be enough soft, so that vibration damping overhangs and should lean on enough closely with the wheel outer rim at the hoop wall part 28 that is positioned on the wheel of recess.Like this, if land when putting down chest with wheel, wheel relative resilient vibration damping disk 23 tilts to make wheel EDGE CONTACT wall 28.Like this, tank wall can design and be used for limiting the maximum inclination of wheel to its mounting structure, the part vibration to casing is overhang by casing partly directly pass to casing, in case judder causes the damage of wheel mounting structure.Will be appreciated that rubber disc must be enough hard, part 28 contacts in case the wheel minor axis normal inclination on its mounting structure causing wheel and tank wall when ground surface overhangs.

In most preferred embodiment, rubber disc 23 thickness are 3 millimeters, and diameter is 25 millimeters, can certainly be other suitable dimensions.

When the chest that above-mentioned wheel assembly is housed was mobile on the ground, the vibration absorber that is made of rubber disc 23 bore the vibrations of wheel and reduces to pass to the vibration of chest.This noise that wheel will be produced reduces greatly, and the movable case period of the day from 11 p.m. to 1 a.m is more free and relaxed.The elasticity assembly parts also can reduce the vibration on minor axis and the chest assembly parts.Minor axis and assembly parts are more not fragile like this.Pass the chest of tank wall for axle, the casing part of the wheel assembly section that needs reinforcement is in use damaged preventing.Among the embodiment of Miao Shuing, axle does not pass tank wall in the above.Thereby there is not this problem.

Vibration absorber also can weaken the swing of any casing that produces when casing moves.Can avoid chest out of control and topple over like this.

Fig. 4 represents the improvement assembling form of cantilever minor axis.Vulcanie 123 has the part of two different-diameters.Major diameter partly is connected on the installing plate 124 of cup-shaped.The circumferential flange 130 that goes out around major diameter part circumferential expansion is arranged on the plate.Minor axis 119 has the cup-shaped flange 121 around small diameter portion.Vibration isolation rubber piece 123 can be with reference to any method among the described embodiment of Fig. 1-3 with being connected of minor axis.

In the embodiment shown in fig. 5, damping block 223 is discs of band central opening 231.Minor axis 219 is contained in the opening 213.This embodiment is same as shown in Figure 4 for others.Fig. 6 represents that the device that contacts to earth adopts the another embodiment of the present invention of castor.Four castors are positioned near four angles of case 310 bottoms.From Fig. 6, can only see two castors 311.Each castor has a flange 312 that links to each other with damping block 313 at an upper portion thereof.Damping block is connected again on the installing plate 314.And installing plate is connected on the tank wall by for example screw or rivet.Block rubber 313 and connect the method for 312 and 314 parts can be with reference to the method for attachment of the block rubber among Fig. 1-3 23.

Fig. 7 represents to adorn among the present invention the situation of roller on chest 410 lower long edges.In the recess 411 recessed casees, the roller that rolls around axle 413 is fixed in the chest recess.Respectively there is flange 414 at the wheel shaft two ends.Each flange all is fixed on a side of hard rubber piece 415.The opposite side of every block of rubber is fixed on the corresponding installation power 416, and this plate is fixed on the tank shell of recess 411 ends.The structure of blob of viscose 415 and the method that they are fixed on other parts can be with reference to the described methods of embodiment among Fig. 1.

As other embodiment, elastic vibration clamper is eliminated vibration, reduces noise, reduces the possibility that judder damages chest or its assembly structure.

Claims (10)

1, a kind of suitcase, the corner that comprise a housing, is positioned at housing is used to install the wheel recess, basically wheel, the axle that is used for installing said rotating wheel that extends along the axial width of whole axle, the device that is fixed on the elastic vibration clamper on the said axle and said vibration absorber is installed to the described recess on the outer surface of said housing, it is characterized in that said axle is processed into required size with said wheel, is horizontally installed in the said whole axial width scope at least a portion of said vibration absorber.

2, chest according to claim 1 is characterized in that, elastic vibration clamper is an elastomeric material.

3, chest according to claim 2 is characterized in that, said erecting device comprises an installing plate, and elastomeric material is to be bonded on the said installing plate, and this plate is fixed on again on the outer surface of housing.

4, according to claim 2 or 3 described chests, there is a ring flange inner end that it is characterized in that being positioned at the axle of edge inboard in the wheel axial width, elastic material block is fixed on the ring flange, make said at least elastic material block be arranged in the wheel in the edge, and in the whole axial width scope of this wheel.

5,, it is characterized in that axle does not put in the elastomeric material according to claim 2 or 3 described chests.

According to claim 2 or 3 described chests, it is characterized in that 6, axle is not rigidly attached on the tank shell.

7, chest according to claim 1 and 2, a part that it is characterized in that tank shell overhang on the wheel in being contained in case shell recess.Therefore the displacement of spacing during less than wheel relative resilient vibration absorber maximum inclination between part and the wheel of overhanging of said housing just contact with the overhang branch of said housing when wheel is subjected to than strong vibration.

8, chest according to claim 7 is characterized in that elastic vibration clamper is fixed on the axle by vulcanizing.

9, chest according to claim 3 is characterized in that, elastic vibration clamper is fixed on the installing plate by vulcanizing.

10, a kind of suitcase, it comprises a housing, one dihedral of said housing becomes recess, a wheel that in said recess scope, is arranged at rotatably on a jiao of said housing, said wheel is contained in by on the cantilever minor axis of taking turns subcenter, it is characterized in that, minor axis comprise one be positioned at said wheel in the laterally inboard ring flange of edge, with the elastic vibration clamper that is connected to the ring flange surface, said vibration absorber is fixed on the installing plate, so that said wheel and minor axis are fixed on the housing in said recess scope, the formation of recess overhangs on the periphery of wheel the part of housing, the distance between the periphery of housing and wheel less than wheel and the axle sub-assembly relative resilient vibration absorber maximum inclination the time displacement, therefore, when wheel is subjected to than strong vibration, just divide to contact with the overhang of housing.

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