CN108065544A - Operating unit and possess the operating unit castor brake gear - Google Patents

Abstract

A kind of operating unit is provided, though wire rod length there are some deviations (error) in the case of, the operating unit can also make up these deficiencies so as to locking and unlocks of castor malfunction, be failure to actuate and prevent trouble before it happens.The operating unit possesses：Button (5f), the button are operating as to be kept at the lock operation position for the wheel lock for making castor and release the latch-release operating position of the locking；Master slider (9), the master slider are moved back and forth according to the operation of the button between lock operation position and latch-release operating position；Secondary sliding block (10,11), the pair sliding block have the wire rod connecting portion being connected with operation wire rod, and are configured to move back and forth and slide along the length direction of operation wire rod on master slider；Helical spring (10d, 11d), the helical spring can stretch on the length direction of operation wire rod, and be clipped between the lower end protruding portion (9d, 9e) of the upper end (10c, 11c) of the side opposite with wire rod connecting portion of secondary sliding block and the wire rod connecting portion side of master slider.

Description

Operating unit and possess the operating unit castor brake gear

Technical field

Embodiments of the present invention are related to operating unit and possess the brake gear of the castor of the operating unit.

Background technology

In general, the brake gear of this castor is chiefly used in the leather trunks class such as luggage case, suitcase.As this previous The brake gear of castor, it is known to such device：Operating force operated by operation portion is transferred to castor using linkage, So as to be remotely controlled to the brake gear of the castor.

In addition, also it has been known that there is such devices；Aforementioned link mechanism is replaced into braking wire, so as to fulfill small-size light-weight Change, cost reduction (referring for example to following patent documents 1,2).This is that being connected to operating mechanism 21 using wire rod 41,42 makes foot The pressing shut-down mechanism 51 that wheel 8 stops, wire rod 41,42 is pulled up by the manual operation of operating mechanism 21, so as to drive pressing Shut-down mechanism 51 stops castor 8 to be remotely controlled.These wire rods 41,42 are inserted through in the outer tube of the softness such as synthetic resin, and energy It is enough to move back and forth in the longitudinal direction.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2014-217589 publications

Patent document 2：Japanese practical new case logs in No. 3184906 publication

The technical problems to be solved by the invention

However, in the brake gear of this previous castor, there are following technical problems：Due to passing through wire rod 41,42 Traction or pull back driving pressing shut-down mechanism 51, so as to lock (braking) or unlock (latch-release) castor 8, thus online In the case of the length of material 41,42 is unsuitable, it is easy to cause malfunction, is failure to actuate.

That is, in order to reliably lock or unlock castor 8, the length of wire rod 41,42 must be that appropriate length i.e. regulation is long Degree.However, wire rod is mostly to be added setting, thus root in a manner that the inner surface along leather trunk is climbed and bends required number Shape, size, number of bends according to leather trunk etc., the appropriate length of wire rod 41,42 are different.

Therefore, it is advance for the different various leather trunks such as each shape, size in the brake gear of this castor The appropriate length of setting wire rod is used as specific length.

Therefore, in the manufacture maquila of leather trunk, after the brake gear of castor is installed on leather trunk main body, this is carried out The confirming operation experiment of sample：Whether wire rod is that can specific length, brake gear suitably drive.

However, in the brake gear of this castor, after leather trunk is installed on, exist makes wire rod long due tos above-mentioned reason etc. Degree generates the situation of error.For example, in the case where wire rod 41,42 is too short compared to appropriate specific length, in pull-up wire rod 41st, just lock castor 8 in 42 way.Like this, switch button 13 just stops in the way being pressed, it is impossible to press switch Button 13 presses defined depressed position.Therefore, because cannot switch button 13 be maintained at defined depressed position, because without It can keep the locking of castor 8.

In addition, in contrast, in the case where wire rod 41,42 is long compared to appropriate specific length, be easy to cause as Under be failure to actuate：Pressing shut-down mechanism 51 cannot be fully driven because cannot fully draw wire rod 41,42 due to, so as to lock Determine castor 8.

Also, in above-mentioned previous example, two groups are set respectively for braking the operation of front truckle 8 and rear truckle 7 respectively Mechanism 21,81, castor locking device 20,80, pressing mechanism 51,83 so as to which complicated and component count is more, thus are easy to cause Suitcase it is re-quantization.In addition, the inside mechanism of operating mechanism 21, castor locking device 20, pressing shut-down mechanism 51 are arranged In in suitcase 1, thus correspondingly, it is easy to cause the volume reduction of the internal volume in suitcase 1.In addition, in order to make up the volume reduction, hold Easily lead to the enlargement of suitcase 1.In addition, operating mechanism 21 itself also drives sliding block and draught line via T-shaped link arm 30 Material 42, this is a kind of structure of complexity.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of operating unit, even if there are some mistakes in the length of wire rod In the case of the deviations such as long or deficiency, which also can automatically adjust that these are long or insufficient, so as to by castor The malfunction of locking and unlock is failure to actuate and prevents trouble before it happens.

In addition, it is an object of the invention to provide a kind of brakes that can realize simple in structure and miniaturization castor Device.

For solving the means of technical problem

The operating unit of embodiment possesses：Operation portion, which, which is operating as to be kept at, makes castor The lock operation position of wheel lock and the latch-release operating position for releasing the locking；Master slider, the master slider is according to the behaviour Make the operation in portion and moved back and forth between lock operation position and latch-release operating position；Secondary sliding block, the pair sliding block have The wire rod connecting portion being connected with operation wire rod, and be configured to reciprocal along the length direction of the operation wire rod on master slider It moves and slides, wire rod connecting portion is connected in a manner of it can interlock with locking device, and locking device is on the one hand to the wheel of castor It is locked, on the other hand the locking is released, operation wire rod drives the lock by the reciprocating motion on length direction Determine device, so as on the one hand make wheel lock, on the other hand make the latch-release.

In addition, the operating unit possesses pars contractilis, which can stretch on the length direction of operation wire rod, stretch Portion is clipped between one end of one end of the side opposite with wire rod connecting portion of secondary sliding block and the wire rod connecting portion side of master slider.

Also, the brake gear of the castor of other embodiments possesses：Operating unit；And castor, castor have：Peace Dress portion, mounting portion fix hollow rotary shaft, and on the other hand, mounting portion is installed on attached body；Castor body, castor body have It is the supporting part that can be rotated by wheel support, and so as to the mode around the convolution of hollow rotary shaft is disposed in mounting portion；And Locking device, locking device is disposed in castor body, and locks wheel.

In addition, operation wire rod is made to be inserted through in hollow rotary shaft, and operation wire rod is made to extend to extension in castor body, and Operation wire rod is connected in a manner of it can interlock with locking device, when the operation portion of operating unit is conducted the locking operations or locked During release operation, make wheel lock using locking device or make the latch-release.

Invention effect

According to the present embodiment, even if there are some in it should be formed as the length of operation wire rod of appropriate specific length In the case of deviation, the departure also can by the reciprocating motion of secondary sliding block and the elastic telescopic of pars contractilis of operating unit come Automatically and flexibly absorb and adjust.Therefore, even if the length of operation wire rod also reliably can be locked or unlocked there are deviation The wheel of castor.

Description of the drawings

Action shape when Fig. 1 (a) is the locking of the operating unit in the brake gear for the first castor for representing embodiment The rearview of state, the rearview of operating state when Fig. 1 (b) is unlock (latch-release) of the same operating unit of table.

Fig. 2 be mounted with to have Fig. 1 (a), operating unit shown in (b) castor brake gear suitcase outer surface Expanded view of uncapping.

Fig. 3 is the overall structure figure of the brake gear of the first castor shown in Fig. 2.

The front view after cutaway portion when Fig. 4 (a) is the locking manual operation of Fig. 2, operating unit shown in Fig. 3, Fig. 4 (b) be omit Fig. 4 (a) suitcase shell when operating unit unlock manual operation when front view.

The stereoscopic of face side when Fig. 5 is the removal suitcase shell and foreboard of the operating unit shown in Fig. 4 (a) Figure.

Rear perspective view when Fig. 6 (a) is the locking manual operation of the operating unit shown in Fig. 5, Fig. 6 (b) are to omit Fig. 6 (a) exploded perspective view during pedestal shown in.

Fig. 7 (a) is the outer of state when shifting the operating position of unlock on the button for represent the operating unit by Fig. 5 shown in onto Stereogram is seen, Fig. 7 (b) is the rear perspective view of operating unit when removing the base cover shown in Fig. 7 (a).

Fig. 8 (a) is Fig. 2, the clipped appearance front view of braking single wheel caster shown in Fig. 3, and Fig. 8 (b) is Fig. 8 (a) side view.

Major part longitudinal section view when Fig. 9 (a) is the lock out action of Fig. 8 (a), braking single wheel caster shown in (b), figure 9 (b) is major part longitudinal section view when omitting the head body shown in Fig. 9 (a).

Figure 10 is operation wire rod, rotary shaft, the exploded perspective view of the first locking device shown in Fig. 9 (a), (b) etc..

Figure 11 (a) is the appearance front view for braking twin caster, and Figure 11 (b) is the omission that Figure 11 (a) is represented with section With the major part front view of the part whens wheel and wheel cap of front side, head body etc. in figure.

Figure 12 (a) is the main portion of the second locking device of the braking twin caster shown in aerial view 11 (b) from top to bottom The major part stereogram of timesharing, Figure 12 (b) are that the part amplification of the main shake retainer represented shown in Figure 12 (a) is three-dimensional Figure.

Figure 13 (a) is the unlock (latch-release) that the braking twin caster shown in Figure 11 (b) is represented with a part of section When operating state major part front view, Figure 13 (b) is to represent the action during locking of Figure 13 (a) with a part of section The major part front view of state.

Figure 14 (a) is the appearance front view of revolving second operating unit of other embodiment, and Figure 14 (b) is Figure 14 (a) a part of exploded perspective view of the second operating unit shown in.

Figure 15 is the major part stereogram of the luggage case of other embodiment.

Figure 16 is the front view after the cutaway portion of the 3rd operating unit of the luggage case shown in Figure 15.

Figure 17 is the bottom amplification stereogram of the luggage case shown in Figure 15.

Symbol description

The brake gear of 1 first castor

The brake gear of the second castors of 1A

The brake gear of the 3rd castors of 1B

3 free single wheel casters

4 braking single wheel casters

The second operating units of 5A

5a slide bars

5f buttons

The rotary buttons of 5fA

6 operation wire rods

6b bourrelets

The locking balls of 6c

7 outer tubes

8 unblock buttons

8b locking pawls

8c helical springs

9,5A5 master sliders

The bottom outer surface of 9a master sliders

9d, 9e lower end protruding portion

10,11 pair of right and left pair sliding blocks

10b, 11b pair of right and left wire rod connecting portion

10c, 11c upper end

10d, 11d pair of right and left helical spring

12 installation housings

13 hollow rotary shafts

15 heads (castor body)

16 wheels

17 first locking devices

18 brake pins (pressing component)

19 Lock springs

23 end metals

23a insertion sections

23b stop flanges

201 braking twin casters

202a, 202b two-wheel

203 second locking devices

204 second hollow rotary shafts

205 annular engaging portions

205a engaging protuberances

The locking recess portions of 205b

206 shake retainer

206a, 206b pair of right and left stopper body

206c four-bladed vanes

206d pitman shafts

The locking tongue piece of 206e, 206f pair of right and left

208 torsional springs

Specific embodiment

Present embodiment is illustrated with reference to the accompanying drawings.Also, in multiple attached drawings, to identical or corresponding Part mark same-sign.

(first embodiment)

Present embodiment is related to the brake gear 1 of braking single wheel caster.That is, as shown in Fig. 2, braking single wheel caster 4 is used First brake device 1 be installed on an example i.e. suitcase 2 of leather trunk.Fig. 2 is the appearance front view of suitcase 2, the figure section Part when representing case lid body 2b openings completely and from the left and right expansion to box main body 2a.

Suitcase 2 has the case shell 2c of the square shape of synthetic resin system or made of metal etc., and case shell 2c is leather trunk master An example of body, and with rigidity.Case shell 2c is formed in the following manner：In a side for the box main body 2a for having bottom square tube shape Portion (in Fig. 2 be left side edge) by can using opening and closings such as hinges (not shown) in a manner of set almost that similar shape is with size or slightly The one side edge (being right side edge in Fig. 2) of the case lid body 2b of meagre type.

Suitcase 2 is set respectively for example in Fig. 2 of the bottom of the case shell 2c of box main body 2a in two corner outer surfaces of left and right There are the non-common castor for being configured to braking, i.e., non-brake free single wheel caster 3,3.In addition, for example, in case lid body 2b Case shell 2c bottom, in fig. 2 the outer surface of two foots of left and right set possesses aftermentioned first locking device 17 respectively The braking single wheel caster 4,4 that can be braked.

Moreover, the brake gear 1 of first castor is at the required position of box main body 2a, such as positive top in fig. 2 Operating unit 5 is arranged.In addition as also shown in Figure 3, single wheel caster 4,4 is braked respectively via more, such as two operation wire rods 6,6 And it is connected with the operating unit 5.

This pair of right and left operation wire rod 6,6 is formed such as flexible made of metal wire rod, in respective upper end Integrally it is combined with Fig. 8 (a), the columnar locking column 6a of horizontal roundlet shown in (b).In addition, it is set using flexible synthesis The pair of right and left outer tube 7,7 of fat etc. covers the outer surface of each operation wire rod 6 in a manner of it can be moved on length (axis) direction.

That is, this pair of right and left outer tube 7,7 is connected with operating unit 5, pair of right and left braking single wheel caster 4,4, outside these The inside of pipe 7,7 makes pair of right and left operation wire rod 6,6 insert for that can move in the longitudinal direction.This pair of right and left operation lines Material 6,6 and outer tube 7,7 are added in the inner surface of case shell 2c.

As shown in Fig. 1 (a), (b), Fig. 4 (a), (b), figure (5) etc., operating unit 5 has the flat unit for having bottom square tube shape Pedestal 5b sets flat base seat lid 5c, so as to the opening of closing unit pedestal 5b at the opening back side of unit pedestal 5b The back side.

The foreboard 5e of rectangular flat plate is arranged on the bottom outer surface 5d of unit pedestal 5b.It is formed in bottom outer surface 5d Have make button 5f into figure the button operation opening portion 5g of the prominent rectangle in front, make unblock button 8 into figure in front of it is prominent by Buttonhole 8a.Above-mentioned button operation is also formed at about the same position with opening portion 5g and button hole 8a on foreboard 5e.

As shown in Fig. 1 (a), (b), figure (6), in figure on vertical direction on the bottom interior surface 5h of unit pedestal 5b The flat master slider 9 for having bottom square tube shape is arranged in the mode of slip.Master slider 9 is configured to manual operation unit, in the bottom of master slider 9 Outer surface 9a is directly protrusively provided button 5f, and master slider 9 operates directly to slide in the up-down direction by moving up and down for button 5f It is dynamic.

Moreover, as shown in Fig. 4 (a) etc., button 5f is configured to slidingtype, can in the lock operation position of figure middle and lower part side and It reciprocatingly slides between the unlock operating position of figure middle and upper part side shown in Fig. 4 (b) in figure on vertical direction.It can be at the two The reciprocating stroke of the button 5f moved back and forth between operating position is configured to overtravel.That is, the reciprocating stroke of button 5f is formed as than appropriate The longer stroke of stroke, the appropriate stroke refers to：In the situation that the length of operation wire rod 6 is appropriate length Under, can reliably lock, unlock braking single wheel caster 4 wheel (single-wheel) stroke.That is, the reciprocating stroke of button 5f is formed as Retain the stroke of redundant space, so as to even if the length (or length of aftermentioned bourrelet 6b) of operation wire rod 6 is than appropriate Defined length is slightly excessively longer, and button 5f also can be reliably moved to the position for being pushed unlock operating position and keeping It puts.

In addition, master slider 9 be integrally formed in the figure middle and upper part of master slider 9 it is about laterally longer rectangular box-like locking Frame 9b is formed in figure middle and lower part and is slided recess portion 9c, is slided recess portion 9c and is accommodated to scheme by pair of right and left pair sliding block 10,11 Middle upper and lower upward sliding.Lower end in Fig. 6 that the slip recess portion 9c will slide recess portion 9c is respectively formed as the front into figure Pair of right and left lower end protruding portion 9d, the 9e about protruded with right angle.

Pair of right and left pair sliding block 10,11 has and longitudinally longer in figure makes the rectangular box-like of front surface and rear surface opening Secondary slider body 10a, 11a, lower end is formed in the figure of these secondary slider body 10a, 11a connects such as two operations respectively Wire rod connecting portion 10b, 11b of wire rod 6,6.Each wire rod connecting portion 10b, 11b are respectively formed with recess portion, which will be fixed in respectively Each locking column 6a for operating upper end in the figure of wire rod 6 accommodates be locking and to depart from, by the way that each locking column 6a is inserted into In these recess portions, so as to which each wire rod connecting portion 10b, 11b is connected with each operation wire rod 6.

Each pair sliding block 10,11 is to protrude the pair of right and left lower end of master slider 9 from the backside openings side of each secondary sliding block 10,11 The state of portion 9d, 9e insertion and pair of right and left lower end protruding portion 9d, 9e are contained in the longitudinally longer frame of each secondary sliding block 10,11 In secondary slider body 10a, 11a of rack-like.Also, it is protruded in the opposite side of wire rod connecting portion 10b, 11b, that is, pair of right and left lower end An example for clamping pars contractilis in each figure of portion 9d, 9e and pair of right and left pair sliding block 10,11 between upper end 10c, 11c respectively is i.e. left Right a pair of torsional spring 10d, 11d.

As shown in Fig. 6 (b), the upper end 9f in the figure of the locking frame 9b of master slider 9 is formed by way of cutting There is locking stage portion 9g.The locking stage portion 9g engaging in locking pawl 8b, and can it is locking and depart from.As shown in fig. 7, locking pawl 8b is when master slider 9 is pulled to the unlocked position of the upper limit engaging in locking stage portion 9g.The locking state passes through helical spring 8c It waits the elastic force pressure of springs and keeps, wherein, the springs such as helical spring 8c exert a force to unblock button 8, so that unblock button 8 is dashed forward always Go out, which is released from when pressing unblock button 8.That is, in being unlocked by pressing button 8, unblock button 8 is by unit base Seat 5b side pressures enter, and when stopping the pressing, unblock button 8 is restored to and is dashed forward outward using the elastic recovering force of helical spring 8c The original state gone out.

On the other hand, as shown in Fig. 3, Fig. 8 (a), (b) etc., each braking single wheel caster 4 is almost whole by synthetic resin shape Into, and possess installation housing 12 so that as mounting portion, installation housing 12 is mounted on the one of attached body using bolt etc. Example is the bottom outer surface of suitcase 2.

As shown in Fig. 8 (a), (b), installation housing 12 is in the plane central portion of installation housing 12 for example to set up Fig. 9 vertically (a), the state of the rotary shaft 13 of the metal hollow round tubular shown in (b) is buried and fixes rotary shaft 13, in hollow convolution Multiple mounting flange portions are integrally formed in the peripheral part of axis 13, and multiple mounting flange portions are in the circumferential across required interval.This A little mounting flange portions are threaded into head of a bed platform, bed, table of 2 grade leather trunks class of suitcase or hospital etc. using tapping screw etc. Mounting portion needed for attached body.

As shown in Fig. 9 (a), (b), an example of castor body is arranged via thrust bearing 14 in lower surface in installation housing 12 I.e. plastic head 15, and head 15 is circled round around hollow rotary shaft 13.

As shown in Fig. 8 (a), (b), head 15, which is integrally formed, branches into two strands pair of right and left fork 15a, 15b to make For supporting part, substantially disk-shaped two supports portion 15c, 15d are integrally formed in these forks 15a, 15b, two supports The both ends supporting of the axle 16a of single wheel (single-wheel) 16 is that can rotate by portion 15c, 15d.Axle 16a is located relative to The position of required distance is laterally offset to the sagging vertical center axis in the lower section of hollow rotary shaft 13, and it is eccentric.In vehicle The peripheral part of wheel 16 is equipped with flexible tire 16b.

Also, as shown in Fig. 9 (a), (b), oriented diametric(al) foreign side is integrally formed in lower end for hollow rotary shaft 13 To prominent outward flange 13a, lower end perforation installation 12 He of housing on the thickness direction on installation housing 12 and head 15 Head 15.Upper end is made in the figure of outward flange 13a to be abutted with upper end in the figure of the blank part 15e on head 15 and locking, utilizes this Locking end and the upper outside face of hollow rotary shaft 13 with installation housing 12 rivet riveting part 20 and in figure upper and lower Clamp up installation housing 12 and head 15.

In addition, large-diameter portion 13b is formed at hollow rotary shaft 13 lower part of top in than outward flange 13a more by figure.This is big Footpath portion 13b than the top compared with large-diameter portion 13b by the top diameter bigger, and with it is stepped come enlarged diameter.

Also, the first locking device 17 is arranged in hollow rotary shaft 13 in large-diameter portion 13b.First locking device 17 has There are brake pin 18 and Lock spring 19.

That is, the first locking device 17 accommodate also substantially bottomed cylindrical shown in Fig. 9 metal brake pin 18 with As pressing component, which can move (slip) in the axial direction.

As shown in Figure 10, pin 18 is braked by the cylindric main part 18a of upper end opening and from the figure of main part 18a The tapered portion 18b that lower end reduces downwards the inverse circular cone shape of diameter gradually is integrally linked to be, also, under tapered portion 8b End is equipped with press section 18c.

Also as shown in Fig. 9 (a), (b), brake pin 18, which accommodates the Lock spring 19 of helical spring in main part 18a, is Same heart shaped.The Lock spring 19 is formed as the diameter bigger on the top being located above large-diameter portion 13b than hollow rotary shaft 13 Diameter makes upper end in the figure of Lock spring 19 be protruded upward from the open upper end of main part 18a.The figure of the Lock spring 19 Middle prominent upper end abuts with upper end in the figure of the large-diameter portion 13b of hollow rotary shaft 13 and is engaged.

As shown in Figure 10, brake pin 18 is formed with the wire rod inserting hole 18d of perps shape, the line in the side of main part 18a Material inserting hole 18d enables operation wire rod 6 from being inserted into laterally outside in main part 18a.In addition, in the tapering of brake pin 18 Portion 18b is formed with the locking ball reception room 18e for accommodating locking ball 21, and locking ball 21 is disposed in lower end in the figure of operation wire rod 6.It should Locking ball reception room 18e has circular opening, and the circular opening is for enabling locking ball 21 from horizontal insert.

As shown in Fig. 9 (a), (b), it is formed between locking ball reception room 18e and the reception room of collecting Lock spring 19 Spaced walls 18f.The wire rod seam 18g of perps shape is formed in spaced walls 18f, wire rod seam 18g only inserts operation wire rod 6 It is logical, and prevent the insert of locking ball 21.The outer tube 7 that operation wire rod 6 is made of synthetic resin system covers, and can move in the axial direction It is dynamic.

As shown in Figure 9, Figure 10, lower end is integrally combined with made of metal by injection molding etc. in the figure of outer tube 7 End metal (the Japanese of circular tube shaped：End gold) 23.

End metal 23 is integrally formed with：Insertion section 23a, insertion section 23a are inserted in hollow rotary shaft 13；And Stop flange 23b, stop flange 23b are located at the top of the upper end of insertion section 23a, and diameter is more than inserting for hollow rotary shaft 13 Enter the diameter of openend.

Also, the lower end (top ends) for operating wire rod 6 passes through injection molding after insert outer tube 7 and end metal 23 are interior Deng and be integrally formed with globular locking ball 21.In addition, the locking ball 21 inserts the ring-type of Lock spring 19 in the axial direction It is sagging on the outside of the side of brake pin 18 after spatial portion, it is then moved laterally outside from this, inserts wire rod inserting hole 18d, so as to It is contained in brake pin 18.

Therefore, brake pin 18 in be inserted into and be fixed with locking ball 21 and is combined with locking ball 21 operate wire rod 6 under End.In addition, in brake pin 18, from upper end opening inserted with Lock spring 19.

As a result, as shown in Fig. 9 (a), (b), upper end and the large-diameter portion 13b of hollow rotary shaft 13 in the figure of Lock spring 19 Upper end abuts and locking in interior figure, and therefore, brake pin 18 is exerted a force by the spring force of the Lock spring 19, so as to always from major diameter The open lower end of portion 13b lower section into figure is prominent.

The press section 18c of brake pin 18 is flexibly pressed into the tire 16b of wheel 16 as a result, so as to which wheel 16 is locked It is fixed.That is, wheel 16 is locked always.

On the other hand, the upper end for operating wire rod 6 is fixed on to the main part side of the cylindric locking column 6a of traverse, And the locking column 6a is inserted into the locking locking with inserting in the hole of aforesaid operations unit 5 respectively, so that operation wire rod 6 is with being somebody's turn to do Operating unit 5 connects.The operating unit 5 is configured to：Overcome the spring force of Lock spring 19 in manual operation and wire rod 6 will be operated Into figure during unlock (latch-release) operation of top pull-up specified amount, the lock that wheel 16 is locked by the first locking device 17 is released State is determined, so that wheel 16 can travel.By the locking stage portion 9g for making locking pawl 8b and the locking frame 9b of master slider 9 Engage and the unlock is kept to operate.

Therefore, as shown in Fig. 9 (a), (b), according to each braking single wheel caster 4, the first locking device 17 utilizes locking always The drawing force of spring 19 and make in the large-diameter portion 13b of the therefrom backlash spin axis 13 of brake pin 18 to the prominents specified amount of foreign side, so as to general The press section 18c of brake pin 18 is flexibly pressed into the tire 16b of wheel 16.Wheel 16 is locked against going always as a result, It sails.

Fig. 1 (a), Fig. 6 (a), (b) represent to brake the action of the operating unit 5 when single wheel caster 4 is so in the lock state State.That is, when braking single wheel caster 4 is locked, pair of right and left operation Lock spring of the wire rod 6 by the first locking device 17 19 spring force and pulled down in figure lower section, therefore, in 5 side of operating unit, master slider 9 and pair of right and left pair sliding block 10,11 It is pulled down to together below in figure, lower end in the figure of pair of right and left wire rod connecting portion 10b, 11b of pair of right and left pair sliding block 10,11 It pulled down to the lower limit of unit pedestal 5b and abuts.The abutted position is by the lower pulling force of the elastic force of Lock spring 19 and by bullet Keep to property.That is, the lock operation position of operating unit 5 is resiliently maintained using Lock spring 19.

On the other hand, in the locking, if being operated manually so that the button 5f of operating unit 5 is slided from lock operation position Unlock (latch-release) operating position is moved, then operates wire rod 6 and is pulled up and be equivalent to from the lock operation position of button 5f to unlock The amount of operating position pull-up.Button 5f unlock operating position using above-mentioned unblock button 8 locking pawl 8b holding mechanism and Automatically keep.

That is, when braking the lock-out state of single wheel caster 4, if being pulled up shown in button 5f such as Fig. 7 (a) from lock operation position To unlock operating position, then the master slider 9 directly linked with button 5f is on the bottom interior surface 5h of unit pedestal 5b to be pulled up The mode of top into Fig. 1 (a) is slided.

Therefore, pair of right and left lower end protruding portion 9d, 9e of master slider 9 are also essentially pulled up to top in figure, on the other hand, left and right Wire rod connecting portion 10b, 11b of a pair of of pair sliding block 10,11 operates wire rod 6,6 using pair of right and left and is pulled down the lower section into figure, Therefore, while being shunk in the axial direction respectively positioned at each helical spring 10d, 11d between the two, while passing through above-mentioned each spiral bullet Each elastic recovering force of spring 10d, 11d make each secondary sliding block 10,11 of pair of right and left slide and rise on master slider 9 respectively.

If master slider 9 such as rises to the unlock operating position of the upper limit shown in Fig. 1 (b) as a result, unblock button 8 it is locking The locking locking stage portions to master slider 9 of pawl 8b, so as to keep the locking state.

At this point, the state shunk in the axial direction respectively in each helical spring 10d, 11d of pair of right and left pair sliding block 10,11 Under, pair of right and left wire rod connecting portion 10b, 11b are pulled upward to top in figure.

Therefore, locking ball 21 is essentially pulled up to top using wire rod 6 is operated, and therefore, is connected to the brake of the locking ball 21 Pin 18 overcomes the spring force of Lock spring 19 and is essentially pulled up to top in figure, is drawn into the large-diameter portion 13b of hollow rotary shaft 13.

Lock spring 19 is shunk in the axial direction as a result, and the press section 18c of the pin 18 that brakes is from the tire 16b appearances of wheel 16 Depart from predetermined distance towards top.

Therefore, the locking of wheel 16 is released from, and wheel 16 can travel.As described above, the locking frame 9b profits of master slider 9 It is locking with locking pawl 8b, so as to which the latch-release is maintained during this period.

Also, during the latch-release, if the unblock button 8 of pressing operation unit 5, locking pawl 8b are pressed, therefore, such as Shown in Fig. 1 (a), the locking state between the locking stage portion 9g and locking pawl 8b of master slider 9 is released from.

Like this, helical spring 10d, 11d difference of the pair of right and left pair sliding block 10,11 shunk in the axial direction during unlock It is released and extends in the axial direction, and the Lock spring 19 of the first locking device 17 extends in the axial direction, therefore, pair of right and left The lower end of wire rod connecting portion 10b, 11b pulled down to the lock operation position of lower end in the figure of unit pedestal 5b and abut. The abutting state passes through the bullet between the drawing force of elasticity of pair of right and left helical spring 10d, 11d and the pulling force of Lock spring 19 Property mutually draw and keep.

The drawing force for the axial direction that the pin 18 that brakes as a result, passes through Lock spring 19 is and the large-diameter portion 13b of therefrom backlash spin axis 13 It protrudes outward.

Therefore, the press section 18c of brake pin 18 is flexibly pressed into the tire 16b of wheel 16, and therefore, wheel 16 is again Locked, the traveling of wheel 16 is prevented from.The lock-out state be held using the above-mentioned holding mechanism of operating unit 5 until Until unlock operation.

Therefore, according to the braking single wheel caster 4, the drive member of driving brake pin 18 i.e. the first locking device 17 is arranged In in castor body, that is, head 15, so as to omit the braking list of the previous such driving brake pin 18 of castor as described above The drive members such as member.Therefore, it is possible to reduce component count and assembling procedure, cost is reduced.

In addition, regardless of structure, pattern for installing housing 12 etc., the brake function for braking single wheel caster 4 can be held, Therefore It is not necessary to prepare a variety of first locking devices according to the difference of the design of the shape of the attached body such as suitcase etc.

17.Therefore, braking single wheel caster 4 can made both easily and inexpensively tackle the design of suitcase etc. fierce variation, Development rate.

Therefore, in previous castor, since it is desired that changing drive member for each pattern for installing housing 12 etc. Design, therefore need the labour for the design alteration, time, the expense of new die, Production Time etc. of new grinding tool, but according to The braking single wheel caster 4 of present embodiment, these all need not.

It, should in a state that the interior bottom that drive member is configured to suitcase is first-class also, in previous castor Drive member is mounted on installation housing 12, thus, correspondingly reduce the internal capacity of suitcase.Therefore, in order to true It protects necessary internal volume and causes the large size of suitcase re-quantization, but braking single wheel caster 4 according to the present embodiment, not in hand Drive member etc. is set in suitcase, thus the internal volume of suitcase need not be increased, correspondingly, can realize miniaturization.

Also, according to the braking single wheel caster 4, first is formed using the brake pin 18 and Lock spring 19 of small-size light-weight Locking device 17, it is thus possible to realize the miniaturization of the first locking device 17.

Moreover, brake pin 18 is only to press on vehicle by the spring force for the Lock spring 19 being built in the brake pin 18 The tire 16b of wheel 16, the simple structure so as to lock wheel 16 always, it is thus possible to realize the small-sized light of the first locking device 17 Quantify and further cost reduction.

In addition, the first locking device 17 of the small-size light-weight is disposed in the inside of hollow rotary shaft 13, it is thus possible to will First locking device 17 and castor body, that is, head 15 are integrally formed.Therefore, it is possible to realize the brake gear 1 of the first castor The reduction of whole components number.

In addition, lower end is inserted through in the Lock spring 19 of helical spring in the figure of operation wire rod 6, and on the other hand, the lock Determine spring 19 to be contained in the large-diameter portion 13b and brake pin 18 of hollow rotary shaft 13, therefore locking ball 21 can be prevented from locking Ball reception room 18e is released to outside.Therefore, it is possible to prevent from from brake pin 18 departing from the operation wire rod 6 that locking ball 21 is connected.

Also, stop flange 23b has been arranged in the end metal 23 of outer tube 7, it is thus possible to which outer tube 7 is positioned at hollow convolution The position of the specified altitude of axis 13 etc..

That is, stop flange 23b is abutted with the open upper end of hollow rotating shaft 13, it is thus possible to prevent inserting for end metal 23 Enter portion 23a to be inserted into hollow rotary shaft 13 with amount more than specified amount, insertion can be limited to specified amount.

Therefore, it is possible to by from formed outer tube 7 one end end metal 23 insertion section 23a one end (lower end in figure) to The centering amount of the bourrelet 6b of the operation wire rod 6 to extend out in hollow rotary shaft 13 is as specified amount.

As a result, brake pin 18 can roughly correctly the lock out action position of wheel 16 and unlock operating position between on Lower movement, it is thus possible to reliably carry out these lock out action and unlocking motion.

Also, there is a situation where slightly to exceed compared to appropriate specific length in the length of operation wire rod 6, deficiency (deviation) Under, this exceeds, insufficient section passes through the reciprocating motion of wire rod connecting portion 10b, 11b of secondary sliding block 8b and pair of right and left helical spring The spring of 10d, 11d stretch and automatically regulate.

That is, it is slightly inclined compared to appropriate specific length presence in the overall length of each operation wire rod 6 or the length of bourrelet 6b In the case of difference, the axial shrinkage amount of pair of right and left helical spring 10d, 11d of pair of right and left pair sliding block 10,11 are according to the deviation Degree and automatically adjust.That is, when the insufficient degree of the length of operation wire rod 6 is larger, the receipts of these helical springs 10d, 11d Contracting amount is larger, and when the insufficient degree of the length of operation wire rod 6 is smaller, the shrinkage of these helical springs 10d, 11d are smaller, by certainly It adjusts dynamicly.

On the other hand, in the case where the length of pair of right and left operation wire rod 6,6 is long, pair of right and left helical spring 10d, While the shrinkage of 11d becomes smaller according to the length, the stroke for being pre-formed the button 5f for overtravel absorbs, thus two behaviour Make the length of wire rod 6,6 to be adjusted automatically and flexibly.

Therefore, according to the brake gear 1 of first castor, even if the length of operation wire rod 6 has slightly deviation, also can Reliably single wheel caster 4 is moved in locking reconciliation locking.In addition, pass through helical spring 10d, 11d of operating unit 5 and castor 4 always The Lock spring 19 of first locking device 17 of side come flexibly mutually draw it is each operation wire rod 6 both ends, it is thus possible to reduce and prevent Only operate flexure, the relaxation of wire rod 6.Thereby, it is possible to realize the lock out action of the first locking device 17 and latch-release action The raising of precision and reliability.

Moreover, in the above-described embodiment, the situation that operating unit 5 is manually operated is illustrated, to passing through button 5f Direct manual operation and situation that master slider 9 is made to be moved back and forth between lock operation position and unlock operating position carries out Illustrate, but can also be configured to：Button 5f is driven via mechanisms such as lever mechanism, cam mechanisms.Alternatively, it is also possible to be configured to Enough it is automatically brought into operation.

(second embodiment)

Second embodiment is related to is replaced into Figure 11 by the braking single wheel caster 4 shown in Fig. 8 (a), (b), Fig. 9 (a), (b) (a), (b)~Figure 13 (a), braking twin caster 201 shown in (b) the second castor brake gear 1A.Second castor Brake gear 1A possesses aforesaid operations unit 5.The operating unit 5 is configured to and the operating unit of above-mentioned first embodiment 5 one Sample, thus omit repeated explanation.

As shown in Figure 11 (a), (b)~Figure 13 (a), (b), it is each brake twin caster 201 and Fig. 8 (a), (b)~Fig. 9 (a), (b) etc. the difference of the braking single wheel caster 4 shown in essentially consists in：Single wheel 16 is arranged on left and right side by side and is configured to This point of 202a, 202b；And Fig. 9 (a), (b), the first locking device 17 shown in Fig. 10 are configured to the second locking device 203 This point, other structures are almost identical.

Therefore, in Figure 11 (a), (b)~Figure 13 (a), (b), pair with the braking single wheel caster 4 shown in Fig. 9 (a), (b) etc. Same or equivalent part marks same-sign, omits repeated explanation.

As shown in Figure 11 (a), (b), the second hollow rotary shaft 204 is fixed on installation housing by each twin caster 201 of braking Plane central portion in 12 figure.

Second hollow rotary shaft 204 makes lower end in the figure of the second hollow rotary shaft 204 extend into head 15, utilizes figure Show the radial bearing of omission and be supported to rotate.The installation housing 12 of the second hollow rotary shaft 204 is fixed via figure Show the thrust bearing of omission and be connected with head 15, and be linked to circle round around the second hollow rotary shaft 204.In second It controls in the hollow bulb of rotary shaft 204 to have inserted operation wire rod 6 in a manner of moving and (moving up and down) in the axial direction.

Also, head 15 has columned head body, and a fork (not shown) is set in the lower part of the head body Son.Axle 202c of the fork supporting by pair of right and left two-wheel 202a, 202b supporting for that can rotate.Two-wheel 202a, 202b's Side is covered by wheel cover 202d.

Each two-wheel 202a, 202b have circular wheel 202e, outer are respectively fixed in the wheel rim periphery of these wheels 202e Flexible tire 202f.It is respectively equipped with to form the second locking dress in the medial surface of wheel 202e, 202e of these pair of right and left Put the engaging portion 205 of the pair of right and left circular annular form of 203 part.

By in the circumferential in a manner of required interval (tooth pitch) engaging of the chevron prominent to central side is convex Portion 205a is formed at the shaped outer circumferential portion of each annular engaging portion 205, so as to above-mentioned engaging protuberances 205a adjacent in the circumferential, 205a is respectively formed multiple engaging recessed part 205b of opposing recesses with required tooth pitch respectively to each other, to form locking step Portion.These locking recess portion 205b are formed as the gradual widened trapezoidal recess portion in center to annular engaging portion 205.These left and right one To annular engaging portion 205,205 by each engaging protuberances 205a ... and each locking recess portion 205b ... arranged on dividing in the lateral direction Not consistent position.

Also, as shown in Figure 12 (a), the second locking device 203 possesses the single arm rocking retainer 206 that can be shaken.It shakes Dynamic retainer 206, with stopper body 206a, 206b of the pair of right and left arc-shaped of size, utilizes band plate with almost similar shape The four-bladed vane 206 of shape is by the shake ends on right side in Figure 12 (a) of these pair of right and left stopper bodies 206a, 206b each other on a left side Integrally link in right direction.In one end of the opposite side of four-bladed vane 206c, an example i.e. pitman shaft for shaking central shaft is utilized 206d connects pair of right and left stopper body 206a, 206b in the lateral direction and single armed supports.The axial direction of pitman shaft 206d Both ends are supported on each lateral surface of above-mentioned fork 15a, 15b in a manner of it can rotate.

Also, pair of right and left stopper body 206a, 206b is more outside with the lateral surface than pair of right and left fork 15a, 15b The slightly prominent state in side and be nearly parallel set up in parallel.These pair of right and left fork 15a, 15b are by pitman shaft 206d's Axial both ends supporting is can rotate, and pitman shaft 206d connection pair of right and left stopper body 206a, 206b is each other.

The right part in Figure 12 (a) of four-bladed vane 206c, in the figure of the locking ball 6c combined with operating the terminal part of wire rod 6 Middle upper surface slightly above, is formed for operation wire rod 6 so as to insertion and the seam 207 inserted of mode departed from, and by operation lines Material 6 is connected with four-bladed vane 206c.Seam 207 in the figure of four-bladed vane 206c near left end until be integrally linked to be.

As shown in Figure 12 (a) etc., in the lateral surface of the length direction middle part of pair of right and left stopper body 206a, 206b Locking tongue piece 206e, 206f of rectangular flap shape prominent in the horizontal direction are protrusively provided respectively.These locking tongue pieces The size and shape of 206e, 206f are formed as so as to the mode be inserted into and departed from is inserted into the locking of each annular engaging portion 205 The size and shape of recess portion 205b.That is, these pair of right and left locking tongue piece 206e, 206f is disposed in pitman shaft 206d and four-bladed vane The middle part of 206c.

In addition, as shown in Figure 12 (a), an example i.e. torsional spring of working spring is set respectively at the both ends of pitman shaft 206d 208.The torsional spring 208 has in the inner end of the mutual relative direction of pair of right and left stopper body 206a, 206b (left and right directions) There are each pair of right and left coiled type portion 208a, 208b, coiled type portion 208a, the 208b is in the axial both ends periphery of pitman shaft 206d Wind a few.Torsional spring 208 is integrally linked to be the U-shaped portion 208c that U-shaped is bent on four-bladed vane 206c upper surfaces.U word Right ends of the shape portion 208c in the Figure 12 (a) in two coiled type portions, (b) is made extends substantially in parallel to four-bladed vane 206c sides respectively Afterwards on the upper surface of four-bladed vane 206c in a manner that approximate right angle is curved one or integrally link and be formed as U-shaped, It is in close contact with the front end upper surface of four-bladed vane 206c, so as to always flexibly to the front end upper surface of four-bladed vane 206c It exerts a force downwards.

That is, torsional spring 208 is such a working spring：Make each locking tongue of pair of right and left stopper body 206a, 206b Piece 206e, 206f depart from out of each locking recess portion 205b, and by pair of right and left two-wheel 202a, 202b always to can travel left and right The unlocked position force of a pair of of two-wheel 202a, 202b.

Therefore, as shown in Figure 13 (a), operation wire rod 6 using brake the torsional spring 208 of twin caster 201 and by into figure In the state of the drop-down of lower section, two-wheel 202a, 202b are held in the unlocked position that can be travelled.

On the other hand, as shown in Figure 13 (b), if the button 5f of operating unit 5 is essentially pulled up to the lock operation position of top in figure It puts, then the four-bladed vane 206c for shaking retainer 206 is essentially pulled up to top in figure.Therefore, the locking tongue piece of retainer 206 is shaken The locking recess portion 205b that 206e, 206f are inserted into annular engaging portion 205 is interior and locking, so as to locked.

That is, as described above, operating unit 5 is identical with the structure of the operating unit 5 of above-mentioned first embodiment, but brake double The lock out action and unlocking motion and braking single wheel caster 4 of wheel castor 201 are exactly the opposite, thus the locking behaviour of the operating unit 5 It is opposite with unlock operating position to make position.That is, in the case of using the operation braking twin caster 201 of operating unit 5, The upper limit position for moving up and down stroke of button 5f becomes lock operation position, and lower position becomes unlock operating position.But it grasps Make the overtravel for moving up and down stroke and being configured to as above-mentioned first embodiment of unit 5.

Also, as shown in Figure 11 (b) and Figure 13 (a), (b), the is inserted into a manner of it can simply come in and go out in each outer tube 7 The peripheries of insertion top ends in two hollow rotary shafts 204 it is affixed cylindric end metal 23.From end metal 23a's Lower end is used as in each figure for operating wire rod 6 that 203 side of the second locking device of lower end downwards extends in figure exposes from outer tube 7 Centering state under bourrelet 6b and extend.

Length until the upper end of the locking ball 6c of bourrelet 6b is redefined for following length：According to suitcase 2 grade leather trunks, braking single wheel caster 4, the second locking device 203 size, shape, pattern etc. and reliably lock or unlock second Appropriate length (specific length) necessary to locking device 203.Lower end passes through injection molded etc. in the figure of bourrelet 6b And being integrally linked to be has locking ball 6c.

Also, non-brake above-mentioned free castor 3 does not possess above-mentioned second locking device 203 of braking twin caster 201, It cannot thus brake.

Then, the effect of the brake gear 1A of the braking twin caster 201 formed in this way is illustrated.

(locking)

As shown in Fig. 7 (a), if the button 5f of operating unit 5 is pushed the top into figure and is manually operated to lock operation position When putting, as shown in Fig. 7 (b), the whole of master slider 9 and pair of right and left pair sliding block 10,11 is shifted onto top in figure on directly.

As a result, as shown in Fig. 1 (b), unblock button 8 locking pawl 8b once locking stage portion 9g across master slider 9 After upper, then engaging in the bottom of locking stage portion 9g.The elastic force pressure for the helical spring 8c that the locking state passes through locking pawl 8b and It keeps.Each helical spring 10d, 11d of pair of right and left pair sliding block 10,11 are retained as the state shunk in the axial direction as a result,.

That is, if on the button 5f of operating unit 5 onto latched position will be shifted, such as shown in Figure 13 (b), pair of right and left operation wire rod 6th, 6 the upper side shown in arrow is essentially pulled up in figure, thus the four-bladed vane 206c for shaking retainer 206 overcomes the U of torsional spring 208 The spring force of shape portion 208c and be essentially pulled up in figure top.

Therefore, the shake ends of the right end of pair of right and left stopper body 206a, 206b turn upward around pitman shaft 206d It is dynamic, so as to which pair of right and left locking tongue piece 206e, 206f to be embedded in the required locking recess portion of pair of right and left ring-type engaging portion 205 In 205b.

The rotation of pair of right and left two-wheel 202a, 202b are stopped or even prevent, lock as a result,.The lock-out state passes through behaviour The locking pawl 8b for making the unblock button 8 of unit 5 is kept engaging in the locking stage portion 9g of master slider 9.

Also, in the lock out action, grown in the length of length, that is, bourrelet 6b of operation wire rod 6 compared to appropriate regulation Degree exist it is slightly insufficient in the case of, according to the deficiency degree, each helical spring 10d, 11d of pair of right and left pair sliding block 10,11 Shrinkage respectively each and automatically regulate.That is, operate wire rod 6, bourrelet 6b length insufficient degree it is bigger, then spiral The shrinkage of spring 10d, 11d are also bigger, and insufficient degree is smaller, then helical spring 10d, 11d shrinkage is also smaller.In addition, In the case where operation wire rod 6 is long, absorbed by the overtravel of operating unit 5.

(unlock)

On the other hand, in the locking, if the unblock button 8 of push unit 5, such as shown in Fig. 1 (a), unlock is pressed The locking pawl 8b of button 8 overcomes the spring force of force application spring 8c and is pressed, so as to the locking stage portion of locking pawl 8b and master slider 9 Locking state between 9g is released from.

Therefore, master slider 9a and pair of right and left pair sliding block 10,11 pass through these secondary sliding block 10,11, helical spring 10d, 11d Drawing force and braking twin caster 201 torsional spring 208 spring force and pulled down in figure lower section via operation wire rod 6, it is left Right a pair of wire rod connecting portion 10b, 11b is abutted with lower end in the figure of unit pedestal 5b and stopped.The halted state passes through torsional spring 208 into figure lower section drawing force and be resiliently maintained.

Master slider 9 and secondary sliding block 10,11 are held in their lower position and unlock operating position as a result,.

Therefore, as shown in Figure 13 (a), the four-bladed vane 206c of pair of right and left stopper body 206a, 206b pulled down to figure Middle lower section, thus locking tongue piece 206e, 206f of these pair of right and left stopper bodies 206a, 206b are downward around pitman shaft 206d Direction rotates and is pressed down to lower section in figure.Like this, institute is locking always from so far by each locking tongue piece 206e, 206f Locking recess portion 205b depart from outward, so as to which engaging between each locking tongue piece 206e, 206f and locking recess portion 205b is solved It removes.

Also, in previous technology, for example, operation wire rod 6 length, operate wire rod 6 bourrelet 6b length ratio In the case that preset appropriate length (specific length) is short, if being conducted the locking operations with operation button 5, due to operation Wire rod 6, the bourrelet 6b length of itself do not extend, thus button 5f may stop in the way of lock operation position.

But in this case, helical spring 10d, 11d of pair of right and left pair sliding block 10,11 are shunk respectively, each to make up Operate the insufficient degree of the length of the bourrelet 6b of wire rod 6.Therefore, it is possible to which lock operation position, thus energy will be shifted on button 5f onto Enough keep lock operation position.

Therefore, according to the brake gear 1A of second castor, even if the length of operation wire rod 6, the bourrelet of operation wire rod 6 There is centainly long or insufficient in the length of 6b, also can reliably lock two-wheel 202a, 202b.

Therefore, according to the brake gear 1A of second castor, for because of the size of suitcase 2, shape, operation wire rod 6 Number of bends etc. and the suitcase for causing the respectively different multiple species of suitable length for operating the length of the bourrelet 6b of wire rod 6 2 grade leather trunks, the length of bourrelet 6b need not be adjusted one by one can just install.Therefore, it is possible to realize for by the second castor Brake gear 1A be installed to leather trunk operability raising.

In addition, in the prior art, in the locking manual operation of operating unit 5, in pair of right and left stopper body The situation that at least one party of locking tongue piece 206e, 206f of 206a, 206b abut with the engaging protuberances 205a of annular engaging portion 205 Under (i.e. protrusion is abutted with protrusion), the button 5f of operating unit 5 is possible to stop in the way of lock operation position.

But according to first, second embodiment, pair of right and left helical spring 10d, 11d distinguish each self-constriction, thus energy Enough make button 5f be moved to as defined in until lock operation position, and be maintained at the lock operation position.Further, since each spiral bullet Spring 10d, 11d distinguish each self-constriction, thus even if pair of right and left locking tongue piece 206e, 206f engaging with annular engaging portion 205 The opportunity of abutting between the 205a of protrusion is respectively different, and button 5f can be also moved to lock operation position, and be maintained at the lock Determine operating position.In addition, when being abutted between the protrusion and protrusion, manually slightly push-and-pull brakes twin caster 201 to make Pair of right and left two-wheel 202a, 202b rotate, and make the position of locking recess portion 205b, 205b of annular engaging portion 205 in circumferential direction Upper offset locks so as to which pair of right and left locking tongue piece 202e, 202f is made to be embedded in locking recess portion 205b, 205b.

In addition, according to the brake gear 1A of second castor, stop shake by the spring force of pair of right and left torsional spring 208 Pair of right and left locking tongue piece 206e, 206f of moving part 206 are can be locking and to be fastened on the card of annular engaging portion 205 in a manner of departing from Determine in recess portion 205b, it is thus possible to realize the reduction unexpectedly released of raising and the locking of the reliability of the locking.

Also, as shown in Figure 12 (a), (b), the lower end for operating wire rod 6 is inserted into the seam of four-bladed vane 206c, but at this One side of the U-shaped portion 208c of torsional spring 208 is made to extend to close the openend of seam on the outside of insertion section, it is thus possible to prevent Operate abjection of the wire rod 6 from the openend to outside seam.

In addition, it is directly connected to the four-bladed vane 206c of shake retainer 206 of the operation wire rod 6 with braking twin caster 201 (locking) directly drives the shake retainer 206 by operating pull-up, the drop-down of wire rod 6, thus need not be as above-mentioned previous Example clamp the pressing driving portions such as shut-down mechanism in braking twin caster 201 like that.Therefore, it is possible to realize the brake of the second castor The simplification of the structure of vehicle device 1A, miniaturization, cost reduction.

In addition, according to the second embodiment, it is not necessary that with as above-mentioned first embodiment by above-mentioned previous drive Dynamic portion is installed to the installation housing 12 of braking twin caster 201, thus need not will be for installing the peace of the previous driving portion It fills flange etc. and is arranged on installation housing 12, the effect about the same with above-mentioned first embodiment can be played.

In addition, by the locking recess portion 205b of annular engaging portion 205 with shake retainer 206 locking tongue piece 206e, Chimeric between 206f locks two-wheel 202a, 202b, and there is no stop rodlike pressing as the above-mentioned previous example The top of stick is pressed into situation of the tread of the tire of wheel so as to locking, it is thus possible to being pressed because pressing stops the local of stick The damage of the tire of two-wheel 202a, 202b prevents trouble before it happens caused by pressure.

Also, in the above-described first embodiment, although operating unit 5 is being arranged on the housing body 2a of suitcase 2 just Table, but the present invention is not limited to this, it can also be by operating unit 5 arranged on the housing cover 2b sides of suitcase 2, in addition, also may be used Operating unit 5 to be arranged on to any place in Fig. 2 of suitcase 2 among upper end or left and right side.

Figure 14 (a) is the appearance front view of the revolving second operating unit 5A of other embodiment, and Figure 14 (b) is figure 14 (a) is the stereogram of a part of the same revolving second operating unit 5A of exploded representation.Revolving second behaviour Make being mainly characterized by for unit 5A, the rotary button 5fA that the button 5f of aforesaid operations unit 5 is changed to rotate.That is, energy Lock operation position and unlock operating position are enough operated by the rotation process of rotary button 5fA.

The revolving second operating unit 5A possesses base cover 5A1, the unit pedestal shown in front shroud 5A2, Figure 14 (b) The cam lever 5A4 of 5A3 and cylindrical shape.Revolving second operating unit 5A is on unit pedestal 5A3 so as to moving back and forth And the master slider 5A5 of rectangle frame rack-like is arranged in the mode that can be slided, top is upward on master slider 5A5 so as in figure Secondary sliding block 5A6 is arranged in the mode for moving back and forth and sliding.

Connect rectangular frame upper end inner surface of the outer surface of cam lever 5A4 with master slider 5A5 in a manner of slidable It touches, so as to be moved back and forth by the rotation of cam lever 5A4 in figure on vertical direction.By the axis for making rotary button 5fA Portion 5A8 is inserted into the opening portion 5A7 of right end in the figure of cam lever 5A4 and links with cam lever 5A4, so as to which cam lever 5A4 leads to It crosses the rotating operation of rotary button 5fA and rotates.

Secondary sliding block 5A6 has：With pair of right and left operation wire rod 6 be connected wire rod connecting portion 5A9, on master slider 5A5 The sliding part 5A10 of upper and lower upward sliding and the upper and lower in figure by these sliding parts 5A10 and wire rod connecting portion 5A9 in figure The linking part 5A11 linked upwards.

Linking part 5A11 is so as in the figure of master slider 5A5 in the figure of lower end 5A12 in the through hole of horizontal middle part The mode of slip penetrates through the through hole, and pair of right and left helical spring is clamped between lower end 5A12 and sliding part 5A10 5A13、5A14。

Also, the revolving second operating unit 5A is for example, by by rotary button 5fA rotating operations to lock operation Position (Lock) or unlock operating position, so that master slider 5A5 and pair sliding block 5A6 vertical directions along figure move, so as to Pullup or pulldown pair of right and left operates wire rod 6, so as to respectively drive, lock or unlock the of above-mentioned braking single wheel caster 4 One locking device 17, the second locking device 203 for braking twin caster 201.

In addition, in the revolving second operating unit 5A, stroke central angle can also be formed as to operating the length of wire rod 6 The overtravel of the larger central angle of defined stroke central angle when spending than appropriate length, the trip central angle is by rotary The lock operation position of button 5fA with unlock operating position fold, hereby it is possible to by pair of right and left helical spring 5A13, The shrinkage of 5A14 and the adjust automatically of overtravel automatically adjust the deviation of the length of operation wire rod 6.

Also, above-mentioned pair sliding block 5A6 is configured to make the entirety of pair of right and left helical spring 5A13,5A14 integrally to stretch, But the present invention is not limited to this, such as can also be as the pair of right and left pair sliding block 10,11 shown in Fig. 1 (a), (b), respectively Flexible pair of right and left helical spring 5A13,5A14.

Figure 15 is the stereoscopic of the luggage case 300 used in the brake gear 1B of the 3rd castor of the 3rd embodiment Figure.The characteristics of brake gear 1B of 3rd castor, is, suitcase 2 shown in Fig. 2 is replaced into luggage case 300.Luggage case 300 are arranged the braking single-wheel shown in multiple Fig. 8 (a), (b), Fig. 9 (a), (b) etc. in the bottom of the leather trunk main body 300a of square tube shape Free single wheel caster 3 (these castors 4,3 are omitted in Figure 15, Figure 16) shown in castor 4 and Fig. 2 etc..

Upper end is equipped with main handle 301 in the figure of leather trunk main body 300a, the pull rod that can be come in and gone out 302 and the 3rd is grasped Make unit 303.

The brake gear 1B of 3rd castor possesses the 3rd operating unit 303 as shown in figure 16.3rd operating unit 303 Possess：Button 303a, button 303a as the operating unit 5 of above-mentioned slidingtype are manually actuated that operative position can be being unlocked It puts and is laterally moved back and forth between lock operation position；Mapping device 305, the mapping device 305 is by the transverse direction of button 303a It is mobile to be transformed to the movement in the figure of master slider 9 on vertical direction via the cam lever 304 of substantially L-shaped；And wire rod connects Socket part 10b, 11b, wire rod connecting portion 10b, the 11b with and the pair of right and left pair sliding block 10 about the same of aforesaid operations unit 5, 11st, operation wire rod 6 connects.

Also, in the brake gear 1B of the 3rd castor, it can also be configured to：Such as the brake gear of above-mentioned first castor 1 like that, and the single-wheel 16 for braking single wheel caster 4 is applied in a manner of locking always using the Lock spring 19 of the first locking device 17 Power when that will operate wire rod 6 and be pulled up to 5 side of operating unit, releases the locking (unlock), in contrast, can also be configured to：Profit It is exerted a force with Lock spring 19 in a manner of unlocking always to single-wheel 16, wire rod 6 will operated to the drop-down of 4 side of braking single wheel caster When, lock single-wheel 16.Further, it is also possible to above-mentioned braking single wheel caster 4,4A are replaced into the braking twin caster that can be braked 201。

In addition, the pair of right and left pair sliding block 10,11 of above-mentioned 3rd operating unit 303 is configured to make pair of right and left helical spring The entirety of 10d, 11d are integrally stretched, but the present invention is not limited to this, such as can also be configured to：Such as Fig. 1 (a), (b) institute The pair of right and left pair sliding block 10,11 shown is such, and stretch pair of right and left helical spring 10d, 11d respectively.

In addition, in the respective embodiments described above, to using the situation of the suitcase 2, luggage case 300 of frame-type as leather trunk It is illustrated, but the present invention is not limited to this, such as the leather trunks such as suitcase, the luggage case of zipper form can also be applied to, The leather trunk for possessing the castor that can be braked can be widely used in.In addition it is also possible to head of a bed platform by hospital etc. is set to mounted Body.

Figure 17 is that the braking single wheel caster 4 shown in above-mentioned Fig. 8 (a), (b)~Fig. 9 (a), (b) etc. is further installed on it The stereoscopic figure of situations such as bottom outer surface of the suitcase 400 of his embodiment.

That is, although make in the castors mounting portion 400b such as the bottom of portable box main body 400a of suitcase 400 formation above-mentioned outer The pipe inserting hole 400c that pipe 7 is inserted, but due to the stop flange 23b of the outer tube 7 shown in Fig. 9 (a), (b), Figure 13 (a), (b) etc. Be formed as the diameter than the pipe inserting hole 400c biggers, thus pulled at full tilt into portable box main body 400a in outer tube 7 In the case of, stop flange 23b is abutted with the outer surface of pipe inserting hole 400c, so as to prevent further to pull in.As a result, It can prevent the abjection of outer tube 7.Also, it illustrates use braking single wheel caster 4 using the situation as castor in fig. 17, but The braking single wheel caster 4 can be replaced into the braking twin caster 201 shown in Figure 11 (a), (b), Figure 13 (a), (b) etc..And And in fig. 17, can not also possess the free single wheel caster 3 of locking device in castor mounting portion 40b settings.

In addition, above-mentioned first, second, third operating unit 5,5A, 303 can also be disposed in suitcase 2,400 and row Any parts such as upper surface, front, rear surface, the side of the attached body such as Lee's case 300.

A variety of embodiments of the present invention are explained above, but these embodiments are embodiment, are not intended to limit Determine the scope of the present invention.These new embodiments can use other embodiments to implement, without departing from the master of the present invention Purport, it becomes possible to carry out various omissions, displacement, change.These embodiments, deformation are contained in the scope of the present invention, purport, and And it is contained in the invention recorded in claim and the scope reciprocity with the invention.

Claims (7)

1. a kind of operating unit, which is characterized in that possess：

Operation portion, the operation portion are operating as to be kept at lock operation position and the releasing for the wheel lock for making castor The latch-release operating position of the locking；

Master slider, the master slider is according to the operation of the operation portion and in the lock operation position and latch-release operative position It is moved back and forth between putting；

Secondary sliding block, which has the wire rod connecting portion being connected with operation wire rod, and is configured on the master slider It moves back and forth and slides along the length direction of the operation wire rod, the wire rod connecting portion is in a manner of it can interlock and locking device Connection, on the one hand the locking device locks the wheel of the castor, on the other hand the locking is released, described Operation wire rod drives the locking device by the reciprocating motion on length direction, so as on the one hand make the wheel lock, separately On the one hand the latch-release is made；And

Pars contractilis, the pars contractilis can stretch on the length direction of the operation wire rod, and the pars contractilis is clipped on the pair Between one end of one end of the side opposite with the wire rod connecting portion of sliding block and the wire rod connecting portion side of the master slider.

2. operating unit as described in claim 1, which is characterized in that

The operation portion is configured to be manually operated or be automatically brought into operation.

3. operating unit as claimed in claim 1 or 2, which is characterized in that

The pair sliding block is configured to multiple pairs that more operation wire rods are formed by connecting respectively with the wire rod connecting portion of the secondary sliding block Sliding block, these multiple secondary sliding blocks are configured to by each secondary sliding block the pars contractilis be made to stretch respectively.

4. operating unit as claimed in claim 1 or 2, which is characterized in that

The pair sliding block is configured to multiple pairs that more operation wire rods are formed by connecting respectively with the wire rod connecting portion of the secondary sliding block Sliding block, these multiple secondary sliding blocks are configured to that the pars contractilis is made integrally integrally to stretch compared with these each secondary sliding blocks.

5. a kind of brake gear of castor, which is characterized in that possess：

Operating unit any one of Claims 1-4；And

Castor, the castor have：Mounting portion, the mounting portion fix hollow rotary shaft, on the other hand, the mounting portion installation In attached body；Castor body, it is the supporting part that can rotate that the castor body, which has wheel support, and so as to around institute The mode for stating hollow rotary shaft convolution is disposed in the mounting portion；And locking device, the locking device are disposed in the foot Wheel body, and the wheel is locked,

The operation wire rod is made to be inserted through in the hollow rotary shaft, and the operation wire rod is made to extend in the castor body Extension, and the operation wire rod is connected in a manner of it can interlock with the locking device,

When the operation portion of the operating unit is conducted the locking operations or latch-release operates, make institute using the locking device It states wheel lock or makes the latch-release.

6. the brake gear of castor as claimed in claim 5, which is characterized in that

There is the castor single-wheel to be used as the wheel,

When the operation portion of the operating unit is conducted the locking operations, pressing component is pressed into the list by the locking device Wheel, so as to lock the single-wheel.

7. the brake gear of castor as claimed in claim 5, which is characterized in that

There is the castor two-wheel to be used as the wheel,

When the manual operation unit of the operating unit is conducted the locking operations, the locking device makes one end and the operation lines The shake retainer of material connection shakes, the locking pawl for making the shake retainer and the card for the annular engaging portion for being fixed on the two-wheel Stage portion engaging is determined, so as to lock the wheel.