CN100496334C

CN100496334C - Furniture with top plate

Info

Publication number: CN100496334C
Application number: CNB2006100931954A
Authority: CN
Inventors: 渡部英一; 福谷洋公
Original assignee: Corporation's Good Fortune Valley; Kokuyo Furniture Co Ltd
Current assignee: Corporation's Good Fortune Valley; Kokuyo Furniture Co Ltd
Priority date: 2005-06-23
Filing date: 2006-06-23
Publication date: 2009-06-10
Anticipated expiration: 2026-06-23
Also published as: CN1895121A; HK1095717A1; JP2007000349A; JP4641875B2

Abstract

To improve the degree of freedom of design of a leg body with casters set lockable or unlockable by a simple operation despite a stable installation of furniture with a top board in furniture provided with the top board able to flap between a use position and a stand position and the leg body supporting the top board and having the casters at the bottom.The furniture with the top board is provided with caster main bodies 31 and 41 having wheels 311 and 411 provided on the casters 3 and 4 to roll on a floor face and lock means 3A and 4A switching the action of the wheels 311 and 411 between locking and unlocking. An unlocking means is further provided for unlocking all the lock means 3A and 4A when the top board 20 is in the stand position.

Description

Band top board furniture

Technical field

The band top board furniture that the present invention relates to possess the top board and the roof supporting that can between use location and erection position, turn down action and have the pin body of Caster in the bottom.

Background technology

In the past, designed the multiple structure of band top board furniture that possesses the top board and the roof supporting that can between use location and erection position, turn down action and have the pin body of Caster in the bottom.

As the one example, designed the turnover action of following top board and made the furniture of adjuster lifting.In the furniture of this band top board, when top board is positioned at the use location, make adjuster ground connection, thereby suppress to have utilized the moving of band top board furniture of Caster, simultaneously when top board is positioned at the erection position, adjuster is left from ground, thereby make the mobile possibility that becomes of the band top board furniture that has utilized Caster.(for example, with reference to patent documentation 1.)

Patent documentation 1: No. 3614408 communique of patent

So, in the structure that patent documentation 1 is put down in writing, except Caster, also adjuster must be set.That is, particularly in the mode that Caster is arranged on the pin pedestal, when top board is positioned at the use location,, must on the two ends of pin pedestal, adjuster be set for band top board furniture more stably is set.At this moment, because Caster disposes than vertical central authorities of the more close pin pedestal of adjuster, therefore when moving, band top board furniture is just unstable, is easy to cause the undesirable condition of band top board furniture overturning.Therefore in addition, even if beyond the mode that Caster is arranged on the pin pedestal,, also have and on the pin body, to guarantee the space is set, has limited the undesirable condition of the free degree of design of adjuster except Caster also must be provided with adjuster.

Summary of the invention

The present invention constitutes in order to solve such problem.

That is, band top board furniture of the present invention is characterized in that: possess the top board and roof supporting that can turn down action between use location and erection position and the pin body that has Caster in the bottom; Described Caster has: possess the Caster body of the wheel that rotates with respect to ground, and can be with the lock-out state of the action locking of described wheel with remove the locking device that switches mutually between the latch-release state of described locking; Simultaneously and then possess when described top board is positioned at the erection position, described locking device all is made as the latch-release device of latch-release state.

According to such structure, because when described top board is positioned at the erection position, by described latch-release mechanism the locking device self of Caster is made as the latch-release state, therefore compare with the structure that the described patent documentation 1 that makes the adjuster lifting along with moving of top board is put down in writing, the space that is provided with that does not need adjuster, can improve the free degree of the design of pin body, adopting under the situation of the mode that Caster is set on the pin pedestal simultaneously, Caster can be provided with the two ends of more close pedestal, thereby this band top board furniture can be set stably.In addition, because when described top board is positioned at the erection position, it is the latch-release state that all Casters one are established a capital, therefore make described top board be positioned at the erection position, when carrying this band top board furniture then, can prevent to follow locking device with Caster to be made as lock-out state and situation that band top board furniture is moved takes place, the generation of the undesirable conditions such as fault of Caster.

As the concrete structure that can realize this band top board furniture, can enumerate: it is the furniture that described Caster is provided with along vertically the separating predetermined distance of pin pedestal and in couples, wherein, possess: the operating means of operating by external force in order to make described locking device action; Inside at described pin pedestal, be filled between described operating means and the described locking device, connect into the locking device of right Caster simultaneously, and can and locking device be made as the operating physical force transfer device that moves between the lockset position of coupler of latch-release state in the latched position that locking device is made as lock-out state; Selectively with the fastening device of described operating physical force transfer device fastening on any one of latched position and lockset position of coupler; And fastening device is only worked when described top board is positioned at the use location, described latch-release device makes described operating physical force transfer device be positioned at lockset position of coupler when described top board is positioned at the erection position always simultaneously.If such structure when described top board is positioned at the erection position, can obtain in the effect described in the leading portion, when described top board is positioned at the use location, can as required the Caster that is provided with in couples be made as lock-out state or unlocking condition simultaneously.

In the band top board furniture described in the leading portion, when described top board is positioned at the erection position, make locking device be positioned at the structure of latched position in advance as being used for, can enumerate: utilize the charger that described operating physical force transfer device is loaded to the lockset position of coupler side and form described latch-release device.

As above-mentioned latch-release mechanism structure more specifically, can enumerate: described fastening device possesses the pin of action and the cam part that is connected on the described operating physical force transfer device and only can matches with described pin by the top board loading when described top board is positioned at the use location.

In the described band top board of leading portion furniture, just can carry out the locking of locking device or the structure of unblanking as being used for shirtsleeve operation, can enumerate: described cam part has acceptance for the same operation of described operating means, described operating physical force transfer device is switched to exclusively any one toggle function of latched position and lockset position of coupler then.

Because the present invention is above structure, therefore when described top board is positioned at the erection position, by described latch-release mechanism the locking device self of Caster is made as the latch-release state, so and the structure of adjuster lifting is compared along with moving of top board, the space that is provided with that does not need adjuster, Caster can be provided with the two ends of more close pedestal, therefore this band top board furniture can be set stably.

Description of drawings

Fig. 1 is the overall perspective view of the desk of an embodiment of the invention.

Fig. 2 makes the top board of the desk of this embodiment be positioned at the side view of the state of use location.

Fig. 3 makes the top board of the desk of this embodiment be positioned at the side view of the state of erection position.

Fig. 4 is a vertical view of showing the connecting portion of the action transmission mechanism of desk of this embodiment and Caster.

Fig. 5 shows the Caster of this embodiment and the schematic profile of operating means.

Fig. 6 shows the Caster of this embodiment and the schematic profile of fastening device.

Fig. 7 shows the Caster of this embodiment and the action specification figure of operating means.

Fig. 8 shows the Caster of this embodiment and the action specification figure of fastening device.

Fig. 9 is a schematic diagram of showing the fastening device of this embodiment.

Figure 10 is a stereogram of showing the coupling part of the pin body of desk of this embodiment and top board.

Figure 11 is a stereogram of showing the coupling part of the pin body of desk of this embodiment and top board.

Label declaration

T desk (band top board furniture)

1 pin body

20 top boards

3,4 Casters

3A, 4A locking device

5 operating means

6 operating physical force transfer devices

7 fastening devices

73 springs (charger)

8 latch-release devices

The specific embodiment

Below, with reference to description of drawings an embodiment of the invention.

In the present embodiment, desk T of the present invention as the Fig. 1 of stereogram as a whole and shown in Figure 2 as side view, possesses: the furniture body is a desk body 2 and from the pin body 1 of this desk body 2 of supported underneath.At this, in the present embodiment, suppose the use side side of desk T is recited as front, the use side opposition side is recited as rear end side.

Desk body 2 possesses: with the mode that can turn down action to the such erection position of the side view shown in Fig. 3 from described Fig. 1 and use location shown in Figure 2 by about the top board that socle 11 was supported 20 and be located at the panel 21 of the rear end side of top board 20 for hidden lower limb space.And, be configured under the state that top board 20 is remained on the erection position, can make this desk T and the pin pedestal 10 of other desk T overlap a part each other.In addition, after Fig. 2, omit panel 21 and represent.

Next, the concrete structure to each one of pin body 1 below is described in detail.

Fig. 1 and shown in Figure 2 as described, pin body 1 possesses: pin pedestal 10, socle 11, be positioned at the first distolateral Caster 3 of the use of desk T and with this first Caster 3 roughly with spline structure and be positioned at second Caster 4 of the use side opposition side of desk T.

At this, in the present embodiment, a pair of Caster 3,4, having can be with locking device 3A described later, the 4A that can not blocked movably lock-out state with respect to ground switches mutually with the latch-release state of removing described locking.And, because the pin body 1 of present embodiment possesses: in order to make

locking device

3A, 4A action by the operating means described later 5 of external force operation with will be input to the operating physical force transfer device 6 described later that operating physical force on this operating means 5 passes to pair of

locking device

3A, 4A simultaneously; Therefore can carry out the locking or the latch-release of a pair of Caster 3,4 simultaneously.The detailed content of such mechanism illustrates in the back.In addition, in Fig. 4, showed the vertical view of Caster 3 with the connecting portion of operating physical force transfer device 6.

Pin pedestal 10, be the upper wall 10c that has integratedly along the fore-and-aft direction essentially rectangular that extend, that overlook into lengthwise of desk T, from the two side ends of this upper wall 10c continuous downwards

sidewall

10d, 10e, in the front end of pin pedestal 10, rear end to upper wall 10c and continuous front bulkhead 10a and the aft bulkhead 10b of

sidewall

10d, 10e, and, form by for example drawing etc. to the parts that downside is opened.And, in the rear and front end portion of the two side of pin pedestal 10 10d, 10e, be formed with can with mounting jaw 322a on being formed on

Caster

3,4, Caster installing hole (diagram slightly) that 422a matches.

Socle 11 is aft bulkhead 10b sides that the bottom is supported on pin pedestal 10, erects obliquely to oblique the place ahead simultaneously, at the parts of the top plate supporting portion upper support desk body 2 that is positioned at upper end side.In addition, on the upper end of socle 11, be provided with and top board 20 can be supported to the top plate supporting portion of described erection position turnover action.

First Caster 3 and second Caster 4 are commonly referred to as low seat Caster, in the present embodiment, have same structure respectively.Below, the profile of the state of cutting open at described Fig. 4 and in the width central authorities of pin pedestal 10 is to show among Fig. 5, specifically describes first Caster 3 in this a pair of Caster 3,4.In addition, in described Fig. 5, pin pedestal 10 and socle 11 dot.

First Caster 3 possesses: Caster body 31, and support this Caster body 31, simultaneously be positioned in housing 32 on the pin pedestal 10 via mounting jaw 322a, and the locking control lever 33 that slides in the horizontal direction with respect to housing 32.

Caster body 31 possesses: the promptly main wheel 311 of wheel that with the horizontal axis is a pair of walking usefulness of center rotation, diameter is 311 littler than main wheel, be used for crossing in walking and be positioned at from the auxiliary wheel 312 of the locational barrier of ground perk with can being that the rotating mechanism that the mode of center rotation supports main wheel 311 and auxiliary wheel 312 is a pedestal 313 with the vertical central.Main wheel 311 be located at axle center from pedestal 313 to side's direction, be on the position of the place ahead off normal illustrated example, auxiliary wheel 312 is located at from the position of axle center rear off normal to illustrated example of described pedestal 313, this auxiliary wheel 312 constitutes in such a way: by described pedestal 313 is the rotation at center with the vertical central, when walking, always be positioned at than described main wheel 311 more close direct of travel front sides, thereby can clear the jumps.Pedestal 313, be discoid parts, be housed in the housing that the round-ended cylinder shape is arranged 32 with width dimensions bigger slightly than this pedestal 313, by the bearing that constitutes by a plurality of balls between the inner face of the sidewall of outside that is filled in its sidewall and housing 32, be mounted to such an extent that can be the center rotation with the vertical central with respect to described housing 32.

If further the inside to Caster body 31 is described in detail, on top and axle center position overlapped pedestal 313 of Caster body 31, can be provided with stop pin 314 up or down.This stop pin 314, on the upper end, be provided with can with the contacting part 341a that touches mutually above the described locking control lever 33, thereby moved up and down by top guiding of described locking control lever 33.On the other hand, on above-mentioned main wheel 311, be provided with external gear 315 coaxially, on the outer peripheral face of this external gear 315, be formed with a plurality of tooth 315a of portion with this main wheel 311.In addition, near this external gear 315, on the axle strong point (diagram slightly), be provided with the wheel braking piece 316 that can rotary axis of earth with respect to pedestal 313 supporting, the free end side of this wheel braking piece 316 is connected the bottom of stop pin 314 in the mode of following stop pin 314, is provided with the projection (diagram slightly) that can match with the 315a of tooth portion of external gear 315 on simultaneously below wheel braking piece 316.And then, above wheel braking piece 316, disposing pedestal brake block 317, the axial region (diagram is slightly) that is formed in its substantial middle portion is supported by 313 axles of pedestal.Base end part by this pedestal brake block 317 contacts on above-mentioned wheel braking piece 316, be configured: follow the rotation of wheel braking piece 316, the leading section of pedestal brake block 317 moves up and down, and this leading section can be outstanding upward from the peristome that is located on the above-mentioned pedestal 313 simultaneously.

Housing 32 has: can take in the inner casing 321 of Caster body 31 and the shell 322 of the described inner casing 321 of embedded installation rotatably.

Inner casing 321 on the side, is formed with a plurality of fastenings hole 321a that matches with the leading section of above-mentioned pedestal brake block 317 thereon along Zhou Fangxiang.

Shell 322 has the mounting jaw 322a that can match with the Caster installing hole (diagram slightly) on being formed on described pin pedestal 10, described inner casing 321 can be embedded in inside simultaneously.

Locking control lever 33 can be inserted in the sliding space 32S of above-mentioned housing 32, the mode exposed to the outside of housing 32 of base end side is positioned simultaneously slidably with front.In addition, the locking control lever 33 above on, be formed with the contacting part 331 that touches mutually with the upper end of stop pin 314.This contacting part 331 has: be positioned at the front portion and roughly touch face 331a towards the 1st of vertical direction, be positioned at the rear portion and roughly be positioned at simultaneously than the described the 1st face that touches and touch face 331b, and be connected these and the 1st touch the inclined plane 331c that face 331a and the 2nd touches face 331b near the 2nd of the position of below towards vertical direction.And then the base end side at this locking control lever 33 is formed with the installation projection 332 that can match with the installing hole 6x of operating physical force transfer device 6 described later.And, by the contacting part 314a that makes stop pin 314 touch on the contacting part 331 of this locking control lever 33 and directly make this locking control lever 33 along the fore-and-aft direction of desk T, be the longitudinal sliding motion of pin pedestal 10, stop pin 314 is moved up and down.At this, in the present embodiment, pedestal 313 and stop pin 314, constitute in the mode on the axis of the rotation that is positioned at pedestal 313, therefore with the irrelevant to rotation of Caster body 31, the relative position of stop pin 314 and locking control lever 33 does not change operable lock rationed marketing stably 314.

And, in the present embodiment, this Caster 3 has the locking device 3A that switches mutually between lock-out state that can lock in the action with main wheel 311 and pedestal 313 and the latch-release state of the removing described locking, below is described in detail this locking device 3A.

Shown in Figure 5 as described, thereby touching face 331a at the 1st of stop pin 314 and locking control lever 33 touches under the state of stop pin 314 above being positioned at mutually, since the projection (diagram summary) of the 315a of tooth portion of external gear 315 and wheel braking piece 316 cooperate and the leading section of pedestal brake block 317 be disengaged the cooperating of fastening hole 321a of inner casing 321, this lock-out state is disengaged thus.On the other hand, as shown in Figure 7, locking control lever 33 moves along horizontal direction by making, stop pin 314 with lock control lever 33 the 2nd touch state that face 331b touches mutually, be that stop pin 314 is positioned under the state of downside, because the 315a of tooth portion of external gear 315 matches with the projection of wheel braking piece 316 (diagram slightly), simultaneously the leading section of pedestal brake block 317 matches with the fastening hole 321a of inner casing 321, becomes the lock-out state that the rotation with the rotation of main wheel 311 and pedestal 313 locks simultaneously thus.Like this, in the present embodiment,, constitute locking device 3A of the present invention by Caster body 31 that comprises the stop pin 314 that works as described above and locking control lever 33.In addition, in described Fig. 7, pin pedestal 10 and socle 11 dot.

On the other hand, be provided with second Caster 4 of relatively locating in the aft bulkhead 10b of pin pedestal 10 side with above-mentioned first Caster 3.At this, this second Caster 4 has and the same structure of above-mentioned first Caster 3, therefore omits detailed explanation.In addition, be recited as 43, locking device be recited as the mode of 4A with locking control lever second Caster 4, with each position and inscape of first Caster, 3 corresponding second Casters 4 on, primary " 3 " of label are replaced as " 4 " put down in writing.At this, in Fig. 6 and Fig. 8, showed the profile of the state that the width central authorities at pin pedestal 10 cut open.Fig. 6 is the figure that locking device 4A is made as the situation of latch-release state.In addition, Fig. 8 is the figure that locking device 4A is made as the situation of lock-out state.In addition, in described Fig. 6 and Fig. 8, pin pedestal 10 and socle 11 dot.

At this, the pin body 1 of present embodiment, as Fig. 5～shown in Figure 8, possess: the operating means 5 that utilizes external force to operate for locking device 3A, the 4A action that makes first Caster 3 that is located on the pin pedestal 10 and second Caster 4, thereby and in the inside of pin pedestal 10, be filled in the operating physical force transfer device 6 that the operating physical force that will be input between operating means 5 and locking device 3A, the 4A on the operating means 5 passes to locking

device

3A, 4A simultaneously, can make this lock out action and latch-release action action simultaneously thus to locking

device

3A, 4A.

Specifically, operating means 5, Fig. 5 and shown in Figure 7 as described, have: possess by the operating body 51 of the pedal 511 of pressed by external force with at inside, the counterpart that touches with the bottom of operating body 51, rotates and match of pin pedestal 10, be tilting member 52 with operating physical force transfer device 6 along with moving of pedal.And these operating bodies 51 and tilting member 52 are connected on turning cylinder 51X, the 52X of the inside that is fixed on pin pedestal 10 by axle respectively.That is, operating body 51 and tilting member 52 become the state that is fixed on indirectly on the pin pedestal 10.In addition, described turning

cylinder

51X, 52X, in the present embodiment, on the operating body collecting part 101 of two end supports on being fixed and being installed in above the pin pedestal 10.

If narration in further detail, described pedal 511 has: become roughly tabular above pin pedestal 10 and accept the body 511a of pressing operation, the mode that hangs down with the front end from body 511a is provided with and is connected installation portion 511b on the described turning cylinder 51X by axle, with the action transfer part 511c that is provided with in the mode that hangs down from the rear end of body 511a and touches mutually with described tilting member 52 on the bottom.On the other hand, described tilting member 52 has: the quilt axle is connected the installation portion 52a on the turning cylinder, the contacting part 52b that is provided with and touches mutually with the action transfer part 511c of described pedal 511 in the mode of rearward extending and be provided with and the press section 52c of pressing operation force transfering device 6 in the mode of extending downwards from described installation portion 52a from this installation portion 52a.

On the other hand, operating physical force transfer device 6, utilize be erected between pair of locking device 3A, the 4A extend into that bar-shaped plate member 60 and contacting part with described tilting member 52 touch mutually touch wall 61 and form.On described plate member 60, be formed with installing hole 6x, the 6x that can match with the installation projection 332,432 of described locking control lever 33,43, match with installing

hole

6x, 6x by making these that projection 332,432 is installed, plate member 60 and locking control lever 33,43 are linked together, thereby they are moved along the longitudinal sliding motion of pin pedestal 10 simultaneously.The described wall 61 that touches in the present embodiment, is formed on the base end part of described locking control lever 33.

In addition, touch mutually with the described wall 61 that touches, constitute auxiliary section P2 by making the press section 52c on the front that is formed on described tilting member 52.

And, be configured: when pushing pedal 511, on operating physical force transfer device 6, moving in the length of tilting member 52 and touching in the height dimension of wall 61 of the direction up and down of the rotation of the bottom 521 of tilting member 52 allowed, touch wall 61 by tilting member 52 and this simultaneously and touch mutually, operating physical force transfer device 6 is followed tilting member 52 and is moved up in front and back.That is, be configured: operating physical force transfer device 6, with state that tilting member 52 matches under, one side is allowed the moving of direction up and down of the rotation of tilting member 52, one side is followed moving of fore-and-aft direction and is moved to this fore-and-aft direction.

In addition, in the present embodiment, possess described operating physical force transfer device 6 fastening device 7 of fastening on any one of latched position and lockset position of coupler selectively.

This fastening device 7, Fig. 2, Fig. 3, Fig. 6 and shown in Figure 8 as described, utilize following parts to form: to be connected the cam part 71 on the plate member 60 of described operating physical force transfer device 6, be configured in the pin 72 that described socle 11 inside, bottom can match with the groove 71m on being formed on described cam part 71 and with described plate member 60 and described cam part 71 rearward, be that the charger that the latch-release position side loads is a spring 73.In addition, this fastening device 7 is configured: accept the same operation for described operating means 5, thereby carry out from described latch-release position to described latched position or from the switching of described latched position to described latch-release position.At this, in Fig. 9, showed the vertical view of the state that cam part 71 has been installed on plate member 60.

If narration in further detail, described groove 71m, roughly become heart-shaped, have the 1st catch positions that makes described plate member 60 be positioned at latched position and make described plate member 60 be positioned at the 2nd catch positions of latch-release position, simultaneously these the 1st catch positions and the 2nd catch positions are positioned at the part of heart-shaped depression.

Described pin 72 is configured in socle 11 inside, and as mentioned above, can match with the groove 71m on being formed on described cam part 71 in the bottom.And, shown in the stereogram of top board that Figure 10 showed, when top board 20 is positioned at the use location 20 and the boundary vicinity of pin body 1, be formed with crank portion 721 in the upper end, thus at top board 20 when the use location moves to the erection position, load and move by this top board 20.In addition, the crank portion 721 for this pin 72 is loaded and mobile mechanism narration in the back by top board 20.In addition, in described Figure 10, the part of top board 20 cut open show.

Described spring 73, in the present embodiment, Fig. 5 and shown in Figure 7 as described, be located at the inside of operating body collecting part 101, one end is configured in the rear end of this operating body collecting part 101, the other end is touched mutually with described tilting member 52, and with this tilting member 52 to lockset position of coupler, be that the rear loads.And, also the described operating physical force transfer device 6 that will touch mutually with this tilting member 52 to the lockset position of coupler side, be that the rear loads.

And, when pin 72 arrives any one of described the 1st catch positions or the 2nd catch positions, the cam part 71 that will be provided with this groove 71m by described spring 73 rearward loads, and cam part 71 is crimped on the pin 72, just make thus described plate member 60 selectively fastening on latched position or latch-release position.

And then in the present embodiment, described cam part 71 has acceptance for the same operation of described operating means 5, described operating physical force transfer device 6 is switched to exclusively toggle function on any one of latched position and lockset position of coupler then.

That is, the releasing of locking and locking is all undertaken by pushing described pedal 511 these same operations.Specifically, lock operation is described operating physical force transfer device 6 to be positioned under the state of latch-release position, to push described pedal 511.So pin 72 positions of matching with cam part 71 from described the 2nd catch positions, move to the x point of described Fig. 9 along groove 71m.That is, become the state shown in (b) of this figure from the state shown in described Fig. 9 (a).Then, if end operation for pedal 511, plate member 60 and cam part 71 are loaded by described spring 73, sell 72 and cam part 71 match in the 1st catch positions.That is, become the state shown in (c) of this figure from the state shown in Fig. 9 (b).On the other hand, the latch-release operation is described operating physical force transfer device 6 to be positioned under the state of latched position, to push described pedal 511.So, the pin 72 positions of matching with cam part 71, from described the 1st catch positions to latch-release position opposite one side shifting, and arrival Fig. 9 the y point.That is, become the state shown in (d) of this figure from the state shown in this figure (c).Then, if end operation for pedal 511, plate member 60 and cam part 71 are rearward loaded by described spring 73, sell 72 and cam part 71 on the 2nd catch positions, match.That is, turn back to the state shown in (a) of this figure from the state shown in Fig. 9 (d).

So, in the present embodiment, and then possess when described top board 20 is positioned at the erection position, described locking

device

3A, 4A are made as the latch-release device 8 of latch-release state.

Specifically, shown in Figure 2 as described in addition as mentioned above when described top board 20 is positioned at the use location, matched with cam part 71 in the bottom of described pin 72; When described top board 20 is positioned at the erection position, shown in Figure 3 as described simultaneously, the bottom of pin 72 shown in the releasing cooperates with cam part 71, thereby makes 7 of fastening devices work when described top board 20 is positioned at the use location.And, utilize described spring 73, when being positioned at the erection position, described top board 20 make described operating physical force transfer device 6 be positioned at lockset position of coupler always.

If narration in further detail, described pin 72, as mentioned above, in addition, top board when Figure 10 and top board are positioned at the erection position as described 20 is shown in Figure 11 with the stereogram of the boundary vicinity of pin body 1, and to have the action portion of bearing be crank portion 721 in the end thereon.On the other hand, below the end edge portion of the both sides of top board 20, be provided with and connect top board 20 and pin body 1, and the side component 201 that rotates with top board 20.And, on this side component 201, be formed with pin press section 202, this pin press section 202 is when top board 20 is positioned at reception position, from the crank portion 721 of the described pin 72 of supported underneath, thereby and the lower end that makes described pin 72 remove cooperating of these pins 72 and cam part 71 than described cam part 71 more close tops.In addition, when top board 20 was positioned at the use location, eliminated from the state of the crank portion 721 of the described pin 72 of supported underneath described pin press section 202, thereby as described above, match with described cam part 71 in the bottom of pin 72.

Promptly, when top board 20 is positioned at the erection position, the crank portion 721 of described pin 72 is loaded and is moved upward by described pin press section 202, thereupon, described pin 72 is moved upward, thereby remove and the cooperating of the groove 71m of described cam part 71, to the loading of latch-release position,

Caster

3,4 all becomes the latch-release state to described plate member 60 by spring 73.

The band top board furniture of present embodiment, such as previously discussed, when described top board 20 is positioned at the erection position, by described latch-release mechanism 8 locking device 3A, the 4A of

Caster

3,4 self is made as the latch-release state, therefore compare with the structure that the described patent documentation 1 that makes the adjuster lifting along with moving of top board is put down in writing, the space that is provided with that does not need adjuster, can improve the free degree of the design of pin body,

Caster

3,4 can be provided with simultaneously the two ends of more close pin pedestal 10, thereby this band top board furniture can be set stably.In addition, because when described top board 20 is positioned at the erection position, all

Casters

3,4 all must be the latch-release states, therefore when carrying this band top board furniture making described top board 20 be positioned at the erection position, can prevent to be accompanied by that

locking device

3A, 4A with

Caster

3,4 is made as lock-out state and the generation that directly makes the situation undesirable conditions such as fault that take place,

Caster

3,4 that band top board furniture moves.

Owing to along vertically the separating predetermined distance of pin pedestal 10 described Caster 3,4 is set in couples, and possesses: the operating means of operating by external force in order to make described locking device 3A, 4A action 5; Inside at described pin pedestal 10, be filled between described operating means 5 and described locking device 3A, the 4A, connect into locking device 3A, the 4A of right Caster simultaneously, and locking device 3A, 4A can be made as the latched position of lock-out state and locking device 3A, 4A be made as the operating physical force transfer device 6 that moves between the lockset position of coupler of latch-release state; With with described operating physical force transfer device 6 fastening device 7 of fastening on any one of latched position and lockset position of coupler selectively; And 7 of fastening devices are worked when described top board 20 is positioned at the use location, described latch-release device 8 makes described operating physical force transfer device 6 be positioned at lockset position of coupler when described top board 20 is positioned at the erection position always simultaneously; Therefore when described top board 20 is positioned at the erection position, can obtain, when described top board 20 is positioned at the use location, can as required the Caster 3,4 that is provided with in couples be made as lock-out state or unlocking condition simultaneously in the effect described in the leading portion.

Owing to utilizing the charger that described operating physical force transfer device 6 is carried in lockset position of coupler is that spring 73 forms described latch-release device 8, therefore in this band top board furniture, when described top board 20 is positioned at the erection position, can make

locking device

3A, 4A be positioned at lockset position of coupler in advance reliably.

Owing to possessing by top board 20, described fastening device 7 loads the pin 72 that moves, with the cam part 71 that is connected on the described operating physical force transfer device 6 and only when described top board 20 is positioned at the use location, can matches with described pin 72, therefore by following simple structure, promptly, when making top board 20 move to the erection position, thereby the pin 72 and the top board 20 that make such fastening device 7 move simultaneously and remove and the cooperating of cam part 71, and just can realize above-mentioned structure.

Because described cam part 71 has acceptance for the same operation of described operating means 5, described operating physical force transfer device 6 is switched to exclusively toggle function on any one of latched position and lockset position of coupler then, therefore can carry out the locking of locking

device

3A, 4A or unblank with shirtsleeve operation.

In addition, the present invention is not limited to above-described embodiment.

For example, in the above-described embodiment, can design charger is spring 73 position that is located at other, near the mode of for example cam part 71.In addition, in the above-described embodiment, also can on axle is connected with the turning cylinder 52X of tilting member 52, charger be set and promptly be turned round helical spring, and this tilting member 52 is loaded to the side of unblanking.

In addition, can also design possess in the compulsory exercise scope can be up and down with respect to described pin pedestal the fixing mode of the elevating mechanism of Caster body.

And then, can also design the structure of various latch-release devices and fastening device.For example, can design following structure: the pin of the fastening device of above-mentioned embodiment is located on the pin pedestal regularly, described pin is matched with cam part always, the through hole that connects thickness direction is set on the operating physical force transfer device simultaneously, and then be provided with that the bottom connects moving forward and backward of described through hole, quiescing force transfering device and the operating physical force transfer device is fixed on the locational steady pin of latch-release when top board moves to the erection position, and top board and steady pin are linked together by the 2nd operating physical force transfer device.In addition, described the 2nd operating physical force transfer device for example utilizes linkage etc. and forms.

In addition, can also design the structure of various described operating means.For example, can design following structures: when making control lever be positioned at the place ahead, the operating physical force transfer device is positioned at the latch-release position, and when making control lever be positioned at the rear, the operating physical force transfer device is positioned at latched position.

And, the position is set can at random sets of described operating means.For example, also operating means can be located at vertical leading section of pin pedestal.

In addition, in the scope that does not break away from aim of the present invention, can carry out various distortion.

Claims

1. band top board furniture, it possesses the top board and roof supporting that can turn down action between use location and erection position and the pin body that has Caster in the bottom; Described Caster has: possess the Caster body of the wheel that rotates with respect to ground, and can be with the lock-out state of the action locking of described wheel with remove the locking device that switches mutually between the latch-release state of described locking; It is characterized in that:

This band top board furniture also further possesses when described top board is positioned at the erection position, described locking device all is made as the latch-release device of latch-release state;

And this band top board furniture is provided with described Caster in couples along vertically the separating predetermined distance of pin pedestal, and also possesses: the operating means of being operated by external force in order to make described locking device action; Inside at described pin pedestal, be filled between described operating means and the described locking device, connect into the locking device of right Caster simultaneously, and can and locking device be made as the operating physical force transfer device that moves between the lockset position of coupler of latch-release state in the latched position that locking device is made as lock-out state; Selectively with the fastening device of described operating physical force transfer device fastening on any one of latched position and lockset position of coupler;

Fastening device is only worked when described top board is positioned at the use location, and described latch-release device makes described operating physical force transfer device be positioned at lockset position of coupler when described top board is positioned at the erection position always simultaneously.

2. band top board furniture as claimed in claim 1 is characterized in that: utilize the charger that described operating physical force transfer device is loaded to lockset position of coupler and form described latch-release device.

3. band top board furniture as claimed in claim 1 or 2, it is characterized in that: described fastening device possesses the pin of action and the cam part that is connected on the described operating physical force transfer device and only can matches with described pin by the top board loading when described top board is positioned at the use location.

4. band top board furniture as claimed in claim 3 is characterized in that: described cam part has any one the toggle function of accepting with described operating means identical operations, then described operating physical force transfer device to be switched to exclusively latched position and lockset position of coupler.