CN1041198A

CN1041198A - The interlocking elements that similar structures such as movable floor are used

Info

Publication number: CN1041198A
Application number: CN89106566A
Authority: CN
Inventors: 克米特·H·威尔逊; 沃伦·斯基斯塔德
Original assignee: Sico Inc
Current assignee: Sico Inc
Priority date: 1988-07-08
Filing date: 1989-07-08
Publication date: 1990-04-11
Anticipated expiration: 2004-07-08
Also published as: JPH03505773A; CA1325873C; DD292293A5; KR900702159A; AU3872689A; AU617969B2; PH26108A; WO1990000656A1; AU626246B2; CN1023417C; YU135889A; ES2015166A6; EP0432167A1; AU8178091A; EP0432167B1; NZ229860A; CN1066704A

Abstract

The locking device that similar structures such as movable floor are used, it has a floor unit, and some locking parts that are contained in the mold pressing urethane vinegar are arranged thereon, is used for parts parts edge-to-edge's connection.The snap close piece that band tenon and trough of belt arranged on this part of selling through joint efforts, they are contained in the recess on this parts limit.The trough of belt snap close piece has a median slot, is used for inserting the protruding wing of band tenon snap close piece.Some narrow grooves and spring are being guided moving of pin, and this is locked and bridle joint the protruding wing.In order to unclamp band tenon snap close piece, rotate a tripping-gear with a kind of general keying spanner, this tripping-gear has cam, this cam and spring bridle joint.

Description

The interlocking elements that similar structures such as movable floor are used

Present invention generally relates to the parts that mutually combine mutually and improved locking device, therefore by means of these locking devices, can be locked together those parts limits with keeping to the side, in examples of implementation, comprise the interlocked floor parts of using as movable floor, these floor units can be assembled in together, form the floor of an expansion, or can take them apart, so that deposit.

Movable floor is made up of the floor unit of many interlockings, by many floor units limit is coupled together with keeping to the side, can be used for playing a kind of interim floor with rigid surface at certain interim suprabasil carpet veneer or other surperficial upper berth.Along the limit of this floor unit, be provided with locking or linkage, so that guarantee that in use being adjacent to plate links together.For depositing conveniently, unclamp this locking device.Or adopt other way that it is thrown off, in order that can break this floor, be convenient to deposit.Characteristics of the present invention have provided a kind of modified locking device that connects usefulness for this floor unit.When the edge-to-edge's of the interlocking flat board of locking device of the present invention being made used for various applications or floor unit seam, because the most preferred embodiment of the present invention that will provide below is relevant with movable floor, so in the explanation of present patent application and accompanying drawing, will describe at this special-purpose.

For example, in reception and amusement unit, when needs provide a dancing temporarily or do the smooth hard ground of other activity, will use movable floor.On carpet veneer ground or other surface layer, the form that many floor units are kept to the side by the limit couples together, and just movable floor can be installed.These floor units releasably are locked together along its limit, make the expansion ground of required area, this plain edition movable floor discloses in No. 3310919, United States Patent (USP), and this patent has transferred assignee of the present invention.In that patent, a kind of floor unit is provided, every such floor unit has the tenon tee section of a metal material on the deckle, and along the channel section that a metal material is arranged on its other deckle, in order that structure by tenon and groove, can make to be adjacent to the plate member limit and to combine with keeping to the side, and adopt the way that the clamping screw that passes is screwed into the notch of tenon spare, this adjacent panels is fixed in its position.Disclosed movable floor is providing a kind of convenience effectively aspect the movable floor in that patent, obtained when successful, and the present invention provides a kind of modified interlock system and structure again, believes that it will be useful.

Wish to have a kind of dress lock system of floor board block, this system is when corresponding this floor unit is entered contact position, no longer needs an operator and finishes additional work.Screwed in place screw down for example just can be floor unit automatic locking or quick-make together.But, using in order to be applicable to as the dancing party floor unit, interlock must satisfy many quite strict standards.When floor unit is in a time-out, its locking must firmly and really inerrably mesh together, in order that not having this floor unit has seemingly locked, in fact not locking possibility, this locking device must can be worked in hostile environment reliably, fall into the possibility in the lock and bring into use under the abuse condition that unloads between this floor although comprise dust, dirt and other chip, can also normally use year in year out in foreseeable rough operation and after completing.Discuss with rough operation, when the floorboard parts still are locked on many other floor units, if when a workman attempts to mention these floor parts, though this situation is also inadvisable but still might take place, this interconnective device will be subjected to sizable curved power or torsion, these power are to be caused by quite long leverage by applied force, operating environment facing to difficulty, these factors of needed reliability have been got rid of and have been used known striker mechanism commonly used.

The present invention has overcome these problems by a kind of modified locking device is provided, and this modified locking device helps to be used in the floor unit of the reliable and firm connection of needs, or on the seam at the interconnective member edge of other type.One aspect of the present invention provides a kind of follow-on locking device, and this locking device is included as the locking order and the first and second two kinds of parts being combined together.On this second locking member, pin is installed, this pin along between first and second positions or here be called close and the enable possition between, the route of being fixed and moving.A kind of device is installed usually, and for example a kind of elastic device forces this pin to move to their make position.First lock buckling part has such device, when two kinds of lock buckling parts are run into a time-out, can move to the position that their are opened to pin, and after this first and second lock buckling parts bridle joint, its pin turns back to their make position.This first lock buckling part has the bridle joint surface, and when active force will make first and second lock buckling parts throw off, they contacted with pin.And the shape on corresponding these bridle joint surfaces of intrinsic mobile alignment of pin or the gradient can cause the sizable obstruction of generation between first snap close piece and pin.Stop this pin to move to their enable possition.Thereby prevent that this snap close piece from moving.A kind of mechanism of throwing off snap close is provided again in addition, and this mechanism can make pin move to their enable possition, thereby allows this device throw off.According to a most preferred embodiment of the present invention, first snap close piece includes a protruding wing, second snap close piece includes and constitutes one and can insert therein in the groove cavities of the protruding wing, and this protruding wing includes the hook-like part that surface and its mating surface of passing their enable possition at its external margin on lock are engaged on lock the snap close position.

The present invention provides a kind of improved plate block structure on the other hand, and in this structure, plate is to adopt the one-step mould technological forming.This technology is to irritate central core parts with the urethanes envelope, becomes its limit casting side tenon and band to admit the groove of lock buckling part, and bonding decoration and durable floor surface.

To being simply described as follows of accompanying drawing:

The same numbers of institute's mark is represented the appropriate section among whole figure in the accompanying drawings.

Fig. 1 is the phantom drawing of locking device of the present invention, its edges of boards installation closely, and for convenience of description, wherein part is represented with Section line;

Fig. 2 is a pair of top plan view that is adjacent to plate member that links together, and they are to be coupled together by the locking device that meshes together, and for showing this latching device, some part has wherein been cut open;

Fig. 3 be snap close shown in Figure 1 tripping cam amplification plan view;

Fig. 4 is the phantom drawing of the locking device shown in Fig. 1 from another viewpoint, has represented the operation of spring and cam;

Fig. 5 is similar to Fig. 2 and has represented that two adjacent parts are in the locking bonding state;

Fig. 6 is similar to Fig. 5 and has represented two floor units that lock together;

Fig. 7,8 and 9 is similar to Fig. 5 and Fig. 6, but represents the step of unclamping of this latching device;

Figure 10 is the top plan view according to monolithic floor unit of the present invention, and this figure has dwindled a lot, can use the locking device among Fig. 1 therein;

Figure 11 is the ground plan of floor unit among Figure 10;

Figure 12 is the sectional drawing on a groove shaped limit of amplifying, and this figure cuts open along 12-12 line among Figure 10 usually;

Figure 13 is the sectional drawing on a band tenon limit of amplifying, and cuts open along 13-13 line among Figure 10 usually;

Figure 14 is similar to the sectional drawing of Figure 12 and Figure 13, and expression is adjacent to the interlocking on the tenon one flute profile limit of plate member;

Figure 15 is the snap close piece plan view partly of the band groove of the snap close shown in Fig. 1.

As above mentioned, the best applications of locking device of the present invention is in the latching device of the edge-to-edge of interlocked floor parts in movable floor, before the structure of describing this locking device in detail and operation, with reference to Figure 10-14, describe improved a kind of floor unit according to an aspect of the present invention earlier, use together with this latching device possibly on this floor.

As shown in figure 10, floor unit 10 be one square dull and stereotyped but have more than be square plate just can, rectangle or other polygonal panel also can use.But from using and angle easy to manufacture, square plate is best.Floor unit 10 has the limit that is labeled as 11a, 11b, 11c and 11d respectively, limit 11a and 11b all be the tenon limit they will comprise first snap close piece; Limit 11c and 11d are the groove shaped limit, and they will comprise second snap close piece.This tenon and groove are complementary mutually, as first and second snap close pieces.So as will describing hereinafter, the parts of the parts of band tenon and band groove are with edge-to-edge ground, promptly first and second snap close pieces lock together mutually, for example shown in Figure 10 like that.

With reference to Figure 10-14, floor unit 10 comprises a core 12, and this core 12 is the square flat board that a size is similar to this floor unit size.The most handy timber manufacturing of this core, though for example flakeboard or abdomen plywood are also available other material.The mould pressing process that employing describes below, core 12 is nuzzled in a kind of urethanes plastic material 15 fully, this plastic material 15 is closed this core 12, and the periphery, the complete closed that form this floor unit 10 make wooden core be unlikely absorption moisture.At the upper surface of this floor unit, lamination thin plate 13 is bonded on this urethanes.Except the close urethanes band fillet on four limits, this lamination thin plate has covered the entire upper surface of this floor board block 10 in fact, lamination thin plate 13 is a kind of high pressure laminating materials with durable wear surface, it can comprise a kind of decorative pattern, parquet floor pattern as shown in Figure 10.Lamination thin plate 13 has a sand bedding or the coarse back side, in order that make its to greatest extent with this ethyl carbamate binding together.

In the bottom surface of plate 10 is that a backing thin plate 14, this thin plate 14 are also adhered on this urethanes.This thin plate also can be similar to the lamination thin plate made from the superimposed material of high pressure 13, and it not only can help to stop warpage, can also improve its intensity and increase rigidity.

In most preferred embodiment, the limit of floor unit all is formed by the urethanes 15 that core 12 is closed.As the limit 11c of the band groove seen in the cross-sectional drawing of Figure 12 and 11d is to be formed by its top 21 and following 22, has correspondingly formed a groove part 23 between its both sides.Soffit 24 places near limit 22 have formed an arrowband or narrow limit along its limit, in order to contact with the underlay ground that will place floor unit 10 or other surface.Soffit 24 only extends certain width inwardly from its limit, between backing thin plate 14 planes, forms a recess or cavity 29.This recess or cavity 29 take up an area of the major part at plate member 10 back sides.In order to provide and the contacting and additional support, urethanes is down extended on the horizontal plane of soffit 24 from backing thin plate 14 of floor or ground, thereby form many strong points 30 at the back side of floor unit.In most preferred embodiment shown in Figure 11, this strong point 30 is to occur with the form of diamond-shaped body structure.But can think that various size, shape and the spaced this strong point can both use.With a kind of be extended down to the surface 24 contacted ground shaggy rectangular structure as centre bearing point 31.In this most preferred embodiment, an inner recess 32 is arranged in centre bearing 31, this facilitates pastes the printed matter that is marked with the explanation data therein.The support section 32 of a broad of supporting-point 31 provides one can be used for a trade mark or other data (not showing) molding surface thereon.

In Figure 13, tenon shape limit 11a or 11b represent that with profile type as can be seen, as in band groove shaped parts, the limit of top coat stacked plate 13, core 12 and backing thin plate 14 all is closed within the urethanes 15.Tenon tee section among Figure 13 has a big projection 25, and its size and shape can pack in the groove part 23, has formed a surface 26 near projection 25, it with the surface 24 on band groove shaped limit on same horizontal plane, and play a part identical.

Figure 14 has represented two groove limit and tenon shape limits in the adjacent parts that mesh together.Between adjacent plate, being engaged in of this tenon and groove stops the relatively moving up and down on the limit effectively, helps to form to a certain degree stability and reliability.

Along the center of tenon shape limit 11a and 11b, there is the groove part of the snap close piece of an admittance band tenon in zone 35 of each molding, this zone, and the snap close piece of this band tenon will be described below.In midpoint along groove shaped limit 11c and 11d, the snap close piece of the trough of belt that on the urethanes limit of molding, form an admittance zone 37, below holding, will be described to.Screwed insert 40(is seen Fig. 2) in the urethanes in the recess of nuzzling, be used as the device of fixing this snap close piece.

As previously mentioned, this plate member best shown in the accompanying drawing is to adopt clamshell style mold and casting process, and is one-time formed with single step casting method.Facing down of lamination thin plate 13, be placed on that (not expression) is placed on its end face to core 12 again in the suitable mould that has designed, with pad (not expression) they are separated, urethanes is injected between lamination thin plate 13 and the core 12.On backing thin plate 14 centre parts 12, also they are separated with pad, so that urethanes pours between this backer board and this core, seal this mould then, the urethanes of reinjecting.By suitable design plug hole and venthole, the urethanes of fusing is filled this end face lamination thin plate, the cavity between core and the backer board, thus formed the limit and the strong point of this floor unit.In this most preferred embodiment, the urethanes of use is the Urylon that the local Urylon of You Zhiya state Conyer Development Co., Ltd produces ^TMUrethanes, but also can select the urethanes of other type or other plastic material to use according to needed physics and mechanical property.

Referring now to Fig. 1, the snap close piece of a band tenon and the snap close piece of a trough of belt mouth are arranged, preferably they are installed in respectively the limit mid point of the floor unit in zone 35 and 37, in this most preferred embodiment, two

adjacent panels

10a and 10b limit are locked together with keeping to the side.Specifically, the limit 11c of the limit 11a of the band tenon of plate 10a and the band groove of plate 10b relative to each other, limit 11a comprises that a band tenon snap close piece 50 groove shaped limit 11c comprise a trough of belt snap close piece or mechanism 70, a breach arranged for mounting strap tenon snap close piece 50, tenon 25 shown in 25a and the 25b between the zone, and cut therebetween a part of core possibly, in order to admit snap close piece 50.The part of same limit 11c has a breach, to admit the snap close piece 70 of trough of belt.Specifically, at the groove between the zone shown in 22a and the 22b one breach is arranged, wherein corresponding core may be cut, and assigns to admit latching device 70 to form a recess.In this most preferred embodiment, being used to admit breach on these limits of snap close piece and recess all is one-step casting moulding in this plate of casting.Another kind of way is such as adopting mechanical processing method, can cut these parts, to form recess.If use universal flat board, the tenon of this plate and groove shaped limit are to adopt aluminium stamping forming, then adopt this method in back better.

For example, generally include a substrate portion 51 and a protruding wing 60 as Fig. 1 and snap close piece 50 seen in fig. 2, the band tenon.The snap close piece 50 of entire belt tenon is preferably by a monoblock high-strength material.As stainless steel, make with mechanical processing method, or adopt powder metal mold pressing or casting to make by other material.Substrate portion be one elongated, be roughly rectangular parts, it is designed to be suitable for inserting among the 11a of limit in the formed recess.At its every end one installing hole 52 is arranged, can use screw the snap close piece of this band tenon to be fixed to (see figure 2) on the screwed insert 40 of this plate by this installing hole.Whole protruding alar part 60 begins from substrate portion 51, generally vertically stretches out in the planar range of this floor board block itself.The protruding wing 60 is thinner than substrate 51, and its root place 61 is thicker a little than its outside 62a and 62b.These limits 62a and 62b are an angle with the limit with respect to this plate and recede, are a breach 63 between front end edge 62a and 62b, it as will be explained below the same, provide the space for tripping mechanism.Formed on the limit, two ends of the protruding wing 60 is hook-

like part

64a and 64b, and they are cutting inwardly on the protruding wing 60, thereby forms mating surface 65a, 65b.

Trough of belt snap close piece 70 is installed in the 11c of floor unit limit in the formed recess.The trough of belt snap close piece can adopt with the same material and the method for above-described manufacture component 50 and make.Snap close piece 70 is that the form with two half blocks 71 that link together and 72 is combined into.For easily manufactured,

half block

71 and 72 are duplicate, when reversing with box lunch one of them and another, they will closely cooperate into the frame or the housing of trough of belt snap close piece 70.

Snap close piece 70 comprises a big central channel or recess 85, and it is applicable to the protruding wing 60 that injects band tenon snap close piece 50.

The trough of belt snap close piece 70 of having represented half block in Figure 15 specifically, has been represented half block 71 from the inboard.Promptly from inwardly representing towards the face of notch or recess 85, every end at trough of belt snap close piece and its two half blocks all has a connector portions or extension 79, one hole that penetrates 73 is arranged in this connector portions or extension 79, this hole is used for passing threaded insert 40(Fig. 2) so that this snap close piece is fixed in the floor unit.At the one end 76 and holes 74 of a pin are arranged, can cut sth. askew the outer end of this pin or immerse oneself in shape.A hole 77 and a hole 75 are arranged in the corresponding position of its other end.The pin 76 that each half block is matched is inserted in another reciprocity pin 77 that partly matches, thereby two

reciprocity parts

71 and 72 are lumped together.Pass hole 74-75 with suitable screw again, thereby these two half blocks are fixed together.

As shown in Figure 1, pair of pin or roller bearing 80a and 80b are contained in the recess 85, generally are positioned at the position that this protruding wing 60 can touch when the protruding wing 60 inserts latched positions.Pin 80a and 80b, for their axis of little metal cylinder is parallel to this floor level, and they are installed in the last reciprocity part 71 of this snap close piece 70 and time reciprocity part 72 within the formed narrow groove 81a and 82b.The direction of these narrow grooves and these ground edges of boards is an angle.The importance of this angle will further discuss below.These narrow recess gauges have been decided the route that the permission on pin 80a and 80b institute edge is moved.

Trough of belt snap close piece 70 also comprises the

spring

90 and 91 that is installed on its back side.As shown in Figure 4, spring 90 comprise 92 these backs 92, a back along the back side of snap close piece 70 extend through screw hole 73 always, and can fixedly advance this snap close piece screw in the floor unit with what pass hole 73, this spring is connected on this back side.Spring 90 also comprises a taper 94, it is the mid point of extend through snap close piece 70 back side length a little, spring 90 also comprises and being connected on the spring 90, or form holistic lateral parts 96a and 96b with spring 90, these lateral parts are similar to thin-plate element and equally expand the narrow groove 81a of extension generally along the both sides of snap close piece 70.For the thickness that makes snap close piece 70 remains on minimum, so that it can be inserted in the interior recess of its ground edges of boards easily, reduced the thickness of part scope on two half blocks 71 of this snap

close piece

70 and 72 the side, so that the lateral parts 96a and the 96b of cover upper spring 90.

Usually on narrow groove 81a, in the scope, on lateral parts 96a and 96b, be formed with a narrow groove 100a.But the angle of the angle of this narrow groove and narrow groove 81a is different, also will further explain in the importance of this angle operation part below.In this most preferred embodiment, the width of narrow groove 81a and 81b is wideer than the width of narrow groove 100a and 100b, and pin 80a and 80b respectively have a prolongation that dwindles diameter in its termination, and they are corresponding with narrow groove 100a and 100b width.The diameter of the main body of pin 80a and 80b is equivalent to the width of narrow groove 81a and 81b.Along with pin 80a and 80b are inserted in narrow groove 81a and the 81b.Put in narrow groove 100a and the 100b with its termination prolongation that has dwindled diameter, this pin is axially clamped, and has stoped this pin to come off in narrow groove.The elasticity that pin 80a and 80b also depend on

spring

90 and 91 moving of narrow groove 81a and 81b, so that when this sells mobile narrow groove 100a and 100b move on the track of narrow groove 81a and 81b.

On the other end of trough of belt snap close piece 70, similarly spring 91 has a back 93, uses the bolt by 73 that it is secured to this latching device, and the mid point of taper 95 these snap close pieces of extend through and overlapping with the taper of spring 90.A narrow groove is arranged on taper 95, can pass taper 95 when two springs add shown in Figure 4 during by warpage, taper 94.

Between two

half blocks

71 and 72, also have a groove 110 separately, the direction of this groove is perpendicular with the direction of ground edges of boards.This groove blocks deflecting cam 121.This cam is to be used for opening lock bolt as shown in Figure 15, and all there is a pin 111 near bar groove 110 on every limit 71 and 72.As having amplified among Fig. 3 shown in the detail drawing, tripping mechanism 120 comprises a cam member 121.Cam 121 usefulness metals or other sturdy material are made, except that stretching out cam 121 planes in case can with the axle collar 122 that bar groove 110 cooperates, this cam 121 is generally plate, its thickness adapts to the notch 85 between two

half blocks

71 and 72 of trough of belt snap close piece.The same axle collar (among Fig. 3 expression) is on the opposite one side of this cam 121, and with the latter half 72 of snap close piece 70 on corresponding groove 110(Fig. 1 in expression) match.Cam 121 has a tip 123, it is a little somewhat elongated, but the termination is round, is used for meshing the spring of this locker, and specifically, the taper 94, the cam 121 that are exactly spring 90 also have plane 124 and other three planes 125,126 and 127.In the angle that reaches between plane 125 and 126 between 126 and 127, angle corresponding to breach 63 in these band tenon snap close piece 50 protruding wings 60, in all places state, they remain contact, except concerning bar groove 110 juts 128 are too big, the axle collar 122 is generally cylinder, and the width of its diameter and bar groove 110 adapts.Therefore, as from Fig. 6 to Fig. 8 as can be seen, can be in scopes near 90 degree the limit rotation of cam 121.A hexagonal hole 129 that is suitable for general keying wrench operation is arranged in the axle collar 122.The thickness of cam 121 in its surperficial 131 scopes has attenuate.On the another side on surface shown in Figure 3, the thickness of cam 121 in its surperficial 132 scopes also has attenuate.

Before the snap close piece engagement,

spring

90 and 91 is in position shown in Figure 1, it is fixed on its inner position to pin 80a and 80b, as shown in Figure 1, the back side that is parallel to trough of belt snap close piece 70 along with the position on plane 124, and contact with the taper 94 of spring 90, this taper 94 is clamped cam 121 on original position, then make cam 121 counter-rotatings of this tripping mechanism 120, (if when having the people will see the base of other parts or this snap close piece or side, cam 121 also can the clockwise direction rotation) as shown in Figure 1.

In Fig. 1 and Fig. 5, an arrow 150 is also arranged, this arrow hypothesis snap

close piece

50 and 70 directly moves mutually towards the other side's direction, for example to move with the perpendicular direction of the direction of the 11a of ground edges of boards and 11c, as will be explained below the same, snap close piece can be combined in together on this direction, and locks.But the angle direction of being supposed by arrow among Fig. 1 155 is advanced to snap close piece together, also can make this snap close piece engagement, notice that this point also is important.For example, when many floor units are joined together, and to put other floorboard parts into two when being adjacent to the formed corner positions of plate.In the time of will having to mesh simultaneously for both sides 11a and 11b and their corresponding band tenon snap close pieces, above that seems important.Generally the limit of the new floor unit of that piece is parallel to the limit of existing floor unit, this new floor unit is slided into its position.But, this new floor unit is slided into the last of its position move, will belong to this situation of those snap close pieces being combined by near miter angle.This latching device of the present invention will adapt to above-mentioned and the rectangular engagement in its limit, or become the engagement of miter angle with its limit.

When band tenon snap close piece 50 is entered in the trough of belt snap close piece 70, and when being meshed, the protruding wing 60 is inserted in the notch 85.The front end edge 62a of the protruding wing 60 contacts with 80b with pin 80a respectively with 62b, and because angle and the gradient of limit 62a and 62b and narrow groove 81a and 81b make pin 80a and 80b outwards and backward move along their certain mobile alignments in this narrow groove.Like this,

spring

90 and 91 necessary deflections, those two snap close pieces mesh, but also not locking.On shown in Figure 5, continue to move down, make in pin 80a and 80b shift-in hook-

like part

64a and 64b that the angle of front end edge 62a and 62b is located.Make this spring return to their normal condition so again, make pin 80a and 80b move forward into this hook-like part inwardly and insert in the recess.Represented this state among Fig. 6, two floor parts are locked together in Fig. 6.When two snap close pieces were combined, pin 80a may stick into earlier in the hook-like part position of the protruding wing 60 than pin 80b, also may two pin stick into together simultaneously in its position and finish the snap close process, this depends on the accurate location of two snap close pieces.Notice that this point is important.

When lock-out state, just can not two snap

close pieces

50 and 70 and the limit of these corresponding two adjacent floor units drawn back.This is because will will cause the power that snap close piece draws back field of conjugate action 65a and 65b and pin 80a and 80b engagement, and they are pushed the side of narrow groove 81a and 81b.So just produce sizable obstruction, thereby stoped this snap close piece 50 to retreat.The angle of field of conjugate action 65a and 65b or direction, the angle of chosen and narrow groove 81a and 81b or direction become a very little angle.In this best was implemented, this angle was similar to 10 degree, specifically, in this most preferred embodiment, field of conjugate action 65a is approximately 55 degree with respect to the angle A (Fig. 1) of ground edges of boards, and orientation angle B(Fig. 2 of narrow groove 81b) be approximately 45 degree, so the difference between them is approximately 10 degree.Take snap close apart two-part unique way be that pin 80a and 80b are outwards moved in their narrow groove, but, pin 80a and 80b are limited at motion in narrow groove 81a and the 81b, with the angle of proportional field of conjugate action 65a of the angle of narrow groove 81a and 81b and 65b, make applied force not have enough component to cause any this move on the direction of this narrow groove being parallel to.On the contrary, the major part degree of meeting at right angles of this power points to the side inner surface of this narrow groove, produces friction and obstruction, and these frictions and obstruction stop this snap close piece to unclamp again.

Simultaneously, total soundness of this snap close piece and the protruding wing 60 makes this floor can allow quite serious abuse, for example when the snap close on one side of floor unit during still with adjacent floor unit engagement, and the another side that might mention this floor board block.

When unclamping this snap close, be necessary to make pin 80a and 80b to move outwardly and this to be deflection by

spring

90 and 91 make this pin return outwardly realizes.Thereby this pin will be thrown off tip or the limit of hook spare 64a and 64b, and make snap close piece 50 throw off.Certainly, if the load of this snap close piece quite greatly, then the back-off assembly that is provided can not move this pin.But, suppose only to bear on this floor unit the load of appropriateness, or be in simply to keep to the side in the limit and when not having the state of bearing load, then unclamp cam 121 and can finish operation above-mentioned.

Realize top operation, will be in the hex hole 129 in the general keying wrench insertion axle collar 122, this wrench is down to insert from the ground plate top surface along its seamed edge.This " wrench " rotated in a counter-clockwise direction 90 degree (on the directed basis of Fig. 6) will make this mechanism change to the state of Fig. 7 from the lock-out state of Fig. 6.The limit of breach 63 that is parallel to limit, the protruding wing 60 of this device and spring at the flat surface 124 of Fig. 6 cam 121 is pressed on the surface 124 and 125.The cam that rotates along with this wrench makes cam turn, and makes that this moment, surface 125 and 126 contacted with the limit of breach 63, as shown in Figure 7.Thereby most advanced and sophisticated 123 turn to the pin portion to extrapolation spring 90 and 91.When this cam being overturn the bigger diameter region of surface between 127 and 128, need in the bar groove 110 mobile slightly.

This mechanism is turned to as shown in Figure 7 and can take out this wrench behind the state, and the state of this device shown in will resting on is in this state is not very stable, but then this state can remain there as long as two floor parts still are positioned in together and the breach of the protruding wing 60 also contacts with the surface 125 and 126 of cam 121.Because two pins 80a and 80b are in and retract or opening, so can remove these two floors parts.When doing like this, as shown in Figure 8, when band tenon snap close piece is transferred to, the protruding wing 60 of these cam 121 initial tenon snap close pieces going along with and can in its groove 110, outwards moving.After hook-

like part

64a and 64b and pin 80a that recalls and 80b throw off, the band tenon separates with the further of trough of belt snap close piece, and the moving of cam 121, make cam face 131(Fig. 3) with pin 111(Fig. 5 of the reciprocity part 71 of this trough of belt snap close piece) bridle joint mutually.Make like this cam 121 toward the clockwise direction a little rotation a bit, as shown in Figure 8,

spring

90 and 91 power are shifted cam 121 onto as shown in Figure 9 releasing orientation.Rotation is continued to stop this cam in the surface 132 of the pin 111 possibility bridle joint cams 121 of the half block 72 of trough of belt latching device behind state shown in Figure 9 in the sort of state, so just making this tip 123 be unlikely upset pours within notch or the recess 85, if pour in this notch or the recess, then should can hinder flange 60 to enter this notch or recess in the tip.This cam and spring have returned to their normal position in state shown in Figure 9, thereby make pin 80a and 80b move inwardly, and this snap close prepares to allow when next snap close is operated the protruding wing 60 insert at any time again.

If necessary, can provide a kind of and trough of belt or band tenon snap close piece beveled limit member (not have to represent) are housed so that can be connected to this limit member on a kind of limit of floor unit of edge of Large block flooring, as known to usually, floor surface below is to providing a kind of excessive gradually between this movable floor top levels.

As the same described in front explanation and the accompanying drawing, the applicant provides a kind of improved latch device and modified floor component structure, and it is simple to operate and reliable, and has guaranteed being connected to each other between the adjacent panels.

Claims

1, a kind of latch mechanism, it comprises:

First and second snap close pieces, their shape can cooperatively interact to lock together when engagement;

On said second snap close piece pin is installed, this pin moves along determined route between first and second positions;

Normally said pin is pushed to the device of its primary importance;

On said first snap close piece a kind of device is arranged, when making this snap close piece and said second snap close piece mutually during bridle joint, make this device move to the second place to said pin, after this first and second snap close pieces engagement, the shape of said first snap close piece makes this pin might be back to its primary importance;

A plurality of bridle joints surface is arranged on said first snap close piece, when this snap close piece attempt will from the bridle joint of said second snap close piece when spinning off, the shape on this bridle joint surface can mesh said pin; The respective shapes on this bridle joint surface and the mobile alignment of said pin can cause sizable obstruction, thereby stop this pin to move to their second place, and throw off said latching device;

Use a kind of facility as required, this facility can move to the second place to said pin, thereby allows said latching device to throw off.

2, a kind of latching device, it comprises:

First and second snap close pieces, their shape can cooperatively interact when bridle joint, and to form snap close, said first snap close piece has a protruding wing, and said second snap close piece has some facilities, and these facilities constitute a cavity, are used for admitting the said protruding wing;

On said second snap close piece several pin is arranged, generally is installed in the said cavity, along between opening and the closure state really fixed line move, also have these facilities of some facilities usually said pin to be passed closure state to them on this fastener;

When the said protruding wing when lock-out state moves into said admittance cavity, the said protruding wing is along external edge that it contacted, and the opening of this pin passing to them, the said protruding wing has the hook-like part that is provided with by its relative direction, when said first and second snap close pieces having been passed, make said pin go to their make position to during their snap close state;

Said hook-like part has the bridle joint surface of engagement usefulness, when first snap close piece is attempted to throw off from second snap close piece, said pin can be meshed in the bridle joint surface of this hook-like part, definite mobile alignment of bridle joint surface respective shapes and said pin, can cause between the said protruding wing and said pin, causing sizable obstruction, thereby prevent that this pin from moving to its enable possition, and prevent that first snap close piece from throwing off from second snap close piece;

Use a kind of facility as required, this facility can move to its enable possition to said pin, thereby makes said first snap close piece break away from, and throws off this latching device.

3, a kind of floor unit, it is suitable for coupling together on the plate member limit in the same manner with other with keeping to the side, forms an interim expansion floor, and this floor unit is by forming with the lower part:

One is generally the planar rectangular core of mold pressing, seal this center with plastic material then, thereby around this rectangular area plate member, form four limits, both sides are formed with the tenon part therein, and be formed with complementary slot part on the both sides in addition, one recess is all arranged on each limit, be used for admitting snap close piece, band tenon snap close piece is installed in said two recesses, complementary trough of belt snap close piece is installed in other two recesses, thereby, along with said tenon and groove, and, can the limit fix up many said floor units respectively accordingly with being meshing with each other of tenon and trough of belt snap close piece with keeping to the side.