CN102463804A

CN102463804A - Thin film transfer device with push button locking function

Info

Publication number: CN102463804A
Application number: CN2010105398318A
Authority: CN
Inventors: 吴健珑
Original assignee: Shunde Industry Co Ltd
Current assignee: Shunde Industry Co Ltd
Priority date: 2010-11-09
Filing date: 2010-11-09
Publication date: 2012-05-23
Anticipated expiration: 2030-11-09
Also published as: CN102463804B; HK1166477A1

Abstract

The invention relates to a thin film transfer device with a push button locking function. In the thin film transfer device, an extending opening is formed at one end of a body; a movable channel is arranged on one lateral surface of the thin film transfer device; two groups of positioning grooves are respectively arranged at two sides of the movable channel; a movable assembly is accommodated inside the body; positioning elastic members which can be selectively clamped in one group of positioning grooves are arranged inside the body; the movable assembly is linked with a core band assembly accommodated inside the body; the core band assembly is provided with a sticking head corresponding to the extending opening; and a push button which can be slidably arranged on the movable channel is arranged on the core band assembly and is linked to the movable assembly so as to push and support a positioning part to selectively exit or be clamped in one group of positioning grooves.

Description

The film camera lucida of tool push button locking

Technical field

The present invention relates to a kind of stationery, particularly relate to the film camera lucida that the tool push button locking of housing is stretched out or taken in to a kind of application head with push button control core band assembly.

Background technology

Existing integrated correction tape mechanism driven mode capable of using is controlled the application head of revising on the core band and is stretched out or hide housing; For the user in order to wrong place on the overlay file and make things convenient for the user to correct this mistake; Disclose shown in No. 200720109 " coating film transfer tool " application for a patent for invention case (hereinafter to be referred as list of references one) like TW; Be a kind of structure with driven mode control application head, please cooperate referring to Figure 29 and Figure 30, list of references one is to be equipped with a core band assembly 51 in a housing 50 inside; This housing 50 side therein is formed with the sliding ditch 53 of a microscler guiding; Be concaved with one respectively in opposite directions in two opposite sides, sliding ditch 53 rear end of this guiding and take in holding recess 530, be concaved with one in the interlude two opposite sides respectively in opposite directions and release holding recess 531, on the sliding ditch 53 of the guiding of this housing 50, wear one again and can slide the push button 54 that slides in ditch 53 front and back along guiding; And be connected in core band assembly 51 with this push button 54; Make the core band assembly 51 can be along with push button 54 moves, this push button 54 further be the flexible positioning piece 540 of horizontal V font or Y font at inner face sheathed, and correspondence is placed in the sliding ditch 53 of guiding; Along with the user promotes push button 54 slip forward or backward; The both ends of flexible positioning piece 540 respectively slightly flexible the leaning of tool releasing holding recess 531 or taking in holding recess 530, thus, stretch out or take in housing 50 in order to the application head of control core band assembly 51.

Yet of list of references one, wherein push button 54 only omits the flexible characteristic of tool with flexible positioning piece 540; But the pressurized ground, flexible positioning piece 540 both ends that makes V font or Y font slides in guiding ditch 53, because forward when promoting push button 54 backward, the direction of flexible positioning piece 540 both ends pressurizeds is different with power; Therefore the strength that causes push button 54 to move easily is unequal, sliding has some setbacks; In addition, when push button 54 interlock core band assemblies 51 move forward or backward, owing to be to utilize flexible positioning piece 540 to slide into both ends respectively corresponding to releasing holding recess 531 or taking in holding recess 530; And in the both sides ejecting card places recess 530,531; Therefore, core band assembly 51 only reaches locating effect by feat of the end of flexible positioning piece 540, and not only the locating effect of fixed point locking is not good; The application head of core band assembly 51 is stretched out back pressurized traction and is revised in the process of band; Also cause flexible positioning piece 540 two ends to be ejected easily and release holding recess 531, and make in the middle of the housing of withdrawing in the application head, cause suitable puzzlement in the use.

Moreover, the practicality of artificial raising correction band is arranged, an erasing rubber can be set on existing integrated correction tape mechanism separately; Like M323995 number " dual-purpose correction band " novel patent case of TW (being designated hereinafter simply as list of references two), wherein list of references two is that erasing rubber fixedly is embedded at the body of revising band with the close-fitting mode, please cooperate referring to Figure 31; List of references two is in correction band body 60 rear ends one storage tank 61 to be set; In storage tank 61, with the tight fit mode one erasing rubber 62 is set again, and is sheathed on correction band body 60 rear ends separably, come cover cap erasing rubber 62 stained to prevent with a lid 63; In use; Then only needing can direct wiping with the stationery counter-rotating, can reduce the inconvenience that pencil and erasing rubber 62 are alternately taken, and the while also can make erasing rubber 62 loss that is difficult for dropping.

Yet, because the erasing rubber 62 of list of references two is to be fixedly arranged on the body 60, therefore with the tight fit mode; When wiping, because of causing erasing rubber 62, the distortion of erasing rubber 62 breaks away from bodies 60 easily; Fixed effect is not good, and the erasing rubber 62 that is fixedly arranged on the body 60 can't adjust wiping length, more can't select to hide or stretch out in body 60; Flexibility ratio in the use is limited; Add when erasing rubber 62 is used up or damaged, erasing rubber 62 also is not easy to extract body 60 and comes the erasing rubber 62 that more renews, the part so existing structure still haves much room for improvement.

Summary of the invention

Because existing integrated correction tape mechanism has some setbacks with the shift action that push button promotes core band assembly; And application head is stretched out or the fastening structure undercapacity when taking in housing; And the poor effect that causes fixed point to lock, in addition, the integrated correction tape mechanism rear end is provided with erasing rubber with the tight fit mode; Overhang with erasing rubber can't be adjusted, grip is not good, be difficult for to change ... etc. defective; Therefore, for solving aforesaid problem, the present invention provides a kind of push button can smooth-goingly move the film camera lucida that locks with the tool push button of locating really; Its design can easily be adjusted application head and stretch out or take in housing, more can have simultaneously and can adjust overhang and the erasing rubber fixture that is convenient for changing.

For achieving the above object; The present invention provides a kind of film camera lucida of tool push button locking; It includes: a body; Be formed with one at an end of this body and stretch out opening, and a side of this body is provided with a movable passageway, in this movable passageway, be formed with many group locating slots on the two opposite side walls respectively at intervals; One is placed in the moving assembly of this body interior; One interlock is elastic component in the location of moving assembly, on this location elastic component, is formed with a location division, and this location division is moving the setting of through hole direction perpendicular to this, and in selectively corresponding wherein one group of this locating slot that is placed in this movable passageway; One is contained in this body interior and interlock in the core band assembly of this moving assembly, and core band assembly is provided with one and stretches out the application head of opening corresponding to this; And one be mounted slidably on this movable passageway of this body and interlock in the push button of this moving assembly; This push button selectively pushes against this location division of this location elastic component and withdraws from corresponding this group locating slot, and this moving assembly can be moved relative to this body.

Through above-mentioned technical scheme, the integrated correction tape mechanism of tool push button lock function of the present invention provides the application head of core band assembly to have the function that can stretch out or take in body, even if application head is stretched out body pressurized when traction; Also can have stable fixed point locking effect, and a withdrawal body in not understanding, in the use quite stable with smoothly; Simultaneously also can body be designed to removable closing; So when the correction band is used up, also can body be taken apart and install new core band assembly again, can renew usefulness.

Description of drawings

Fig. 1 is the stereoscopic figure of first embodiment of the invention.

Fig. 2 is the exploded stereogram of first embodiment of the invention.

Fig. 3 is that exploded perspective view is amplified in the part of first embodiment of the invention.

Fig. 4 is the local amplification view that the location division of first embodiment of the invention location elastic component is placed in the second locating slot state.

Fig. 5 is the local amplification profile that the location division of first embodiment of the invention location elastic component is placed in the second locating slot state.

Fig. 6 is the local amplification profile that the second locating slot state is withdrawed from location division that first embodiment of the invention pushes away second pushing block compressing location elastic component of turning round.

Fig. 7 is the local amplification profile that the location division of first embodiment of the invention location elastic component is placed in the first locating slot state.

Fig. 8 is the local amplification view that the location division of first embodiment of the invention location elastic component is placed in the first locating slot state.

Fig. 9 is the exploded perspective view of another example of first embodiment of the invention.

Figure 10 is the local amplification profile that the location division of another example location elastic component of first embodiment of the invention is placed in the second locating slot state.

Figure 11 is the local amplification profile that the second locating slot state is withdrawed from location division that another example of first embodiment of the invention pushes away second pushing block compressing location elastic component of turning round.

Figure 12 is the local amplification profile that the location division of another example location elastic component of first embodiment of the invention is placed in the first locating slot state.

Figure 13 is that exploded perspective view is amplified in the part of first embodiment of the invention fixture.

Figure 14 is the local amplification profile of first embodiment of the invention fixture clamping erasing rubber state.

Figure 15 is that exploded perspective view is amplified in the part of second embodiment of the invention fixture.

Figure 16 is the local amplification profile of second embodiment of the invention fixture clamping erasing rubber state.

Figure 17 second embodiment of the invention fixture is changed the local amplification profile of erasing rubber state.

Figure 18 is that exploded perspective view is amplified in the part of third embodiment of the invention fixture.

Figure 19 is the local amplification profile of third embodiment of the invention fixture clamping erasing rubber state.

Figure 20 is the local amplification profile that the third embodiment of the invention fixture is released the erasing rubber state.

Figure 21 is that three-dimensional exploded view is amplified in the part of fourth embodiment of the invention fixture.

Figure 22 is the stereoscopic figure of fifth embodiment of the invention.

Figure 23 is the exploded perspective view of fifth embodiment of the invention.

Figure 24 is the local amplification profile that the location division of fifth embodiment of the invention convolution push piece is placed in the second locating slot state.

Figure 25 is the side plan view of fifth embodiment of the invention.

Figure 26 is that fifth embodiment of the invention convolution push piece pushes away and turns round pressurized and make the location division withdraw from the local amplification profile of the second locating slot state.

Figure 27 is the local amplification profile that the location division of fifth embodiment of the invention convolution push piece is placed in the first locating slot state.

Figure 28 is the local amplification profile that the location division of fifth embodiment of the invention convolution push piece is placed in the 3rd locating slot state.

Figure 29 is that the application head income of existing list of references one core band assembly and the action of releasing housing are not intended to.

Figure 30 is that the flexible positioning piece of existing list of references one push button moves to the action sketch map of releasing the holding recess from taking in the holding recess.

Figure 31 is that existing list of references two is fixed in the sectional perspective exploded view on the integrated correction tape mechanism with erasing rubber with the close-fitting mode.

The specific embodiment

The present invention relates to a kind of film camera lucida of tool push button locking; Can adjust the kenel that application head is stretched out or taken in order to provide the core band assembly of installing in the body to be; Film camera lucida of the present invention can be one and revises band or paste band etc.; Wherein all can the device in film transcription to a precalculated position promptly being included among the category of the present invention, the present invention possesses in addition has the erasing rubber fixture that can adjust elongation and be convenient for changing erasing rubber, reaches to have the dual-purpose practical characteristic of one concurrently; The present invention provides a plurality of embodiment to describe, the explanation of its detailed structure as after.

Please referring to figs. 1 through Fig. 3, the first embodiment of the present invention, it includes a body 10, a fixture 20 and a lid 30.

This body 10 can be microscler and at one end be formed with one and stretches out opening 11; And include a movable passageway 12, a moving assembly 13, a core band assembly 14 and a push button 15; Wherein, This movable passageway 12 is on the wherein side that microscler perforation is formed at body 10; An end that in body 10 movable passageways 12, closely stretches out in addition opening 11 is formed with one first locating slot 120, differ from the end in addition that stretches out opening 11 and then be formed with one second locating slot 121, and each locating slot 120,121 is arranged with respectively in movable passageway 12 on the two opposite side walls in opposite directions.

Preferably; This body 10 can be formed by the mutual fit of two corresponding half housings, and the body 10 of present embodiment includes preceding half shell 101 and a later half shell 102, wherein; This stretches out opening 11 to be somebody's turn to do preceding half shell, 101 1 ends formation; End then forms the fit opening in addition, and forms an installing hole 103 on the side therein, and on preceding half shell 101 around the installing hole 103, is formed with a bearing and leaning portion 104; One end of this later half shell 102 is inserted in the fit opening of this preceding half shell 101; And form on this bearing and leaning portion 104 that a fit portion 105 correspondences are bearing on this preceding half shell 101; On the side of corresponding installing hole 103, then be formed with this movable passageway 12; Body 10 of the present invention in addition also can be up and down or about the combining form of half shell, as long as body 10 is separable shape, the present invention does not limit form, quantity and the combination of body 10.

Please cooperate simultaneously again referring to Fig. 4 and Fig. 5; This moving assembly 13 can be long plate shape and be placed in this body 10 inside; And include the long straight perforation of an embeded slot 130, a cross-perforating 131, one 132, a location elastic component 133, one first side plate 134, one second side plate 135, two guiding side plate 136 and core band sleeve columns 137; Wherein, This embeded slot 130 is arranged with on the side of this moving assembly 13, and corresponding to this movable passageway 12, and this embeded slot 130 is microscler and along the long axis direction setting of this moving assembly 13; This cross-perforating 131 is arranged at embeded slot 130 bottom surfaces and runs through on this moving assembly 13, and cross-perforating 131 be shorter in length than embeded slot 130, and can be formed with a support portion 1301 respectively at embeded slot 130 two ends; This long straight perforation 132 is to be arranged on this moving assembly 13 with vertical these cross-perforating 131 directions, and is communicated in this cross-perforating 131 and this embeded slot 130.

This location elastic component 133 is microscler lamellar body; Be placed in this embeded slot 130 with these long straight perforation 132 modes to pass this cross-perforating 131; And include a location division 138 and two fitting portions 139, and wherein, the straight shell fragment of length that this location division 138 is convex arc shaped; This location division 138 is with perpendicular to mobile through hole 12 direction settings, and selectively correspondence is placed in first locating slot 120 or second locating slot 121; Fitting portion 139 is formed at the relative both sides of location division 138 respectively, and is supported on the support portion 1301 at embeded slot 130 two ends.

This first side plate 134 protrudes respectively with this second side plate 135 and is formed on this moving assembly 13; And correspondence is placed in the movable passageway 12; This biside plate 134,135 lays respectively at the both sides of these location elastic component 133 location divisions 138; What this first side plate 134 was positioned at nearly body 10 again stretches out opening 11 places, this second side plate 135 be positioned at differ from body 10 stretch out opening 11 places.

This two guidings side plate 136 is connected in the end face and the bottom surface of first side plate 134 and second side plate 135 respectively; And this two guidings side plate 136 is respectively at the recess 1361 towards the mutual correspondence of the recessed formation of a side of embeded slot 130, in order to the location division 138 of ccontaining location elastic component 133; This core band sleeve column 137 is formed at and differs from towards the side of movable passageway 12 front end on this moving assembly 13.

This core band assembly 14 is sheathed on the core band sleeve column 137 of this moving assembly 13 replaceablely and is placed in body 10 inside; And include an application head 140 and stretch out opening 11 corresponding to body 10; Wherein, The substitute mode of this core band assembly 14 be with preceding half shell 101 of body 10 with after later half shell 102 separates, take off the core band assembly 14 on the moving assembly 13, newer core band assembly 14 is sheathed on the core band sleeve column 137 of moving assembly 13; Again moving assembly 13 is inserted in preceding half shell 101 together with later half shell 102, preceding half shell 101 is linked in later half shell 102.

This push button 15 is mounted slidably on the movable passageway 12 of body 10; And interlock is in moving assembly 13; This push button 15 inner faces protrusion is formed with one first pushing block 150 and one second pushing block 151; Pass movable passageway 12 respectively and be placed between first side plate 134 and second side plate 135, two pushing blocks 150,151 form the inclined plane in opposite sides respectively, to surround the location division 138 of an elastic component tank 152 corresponding ccontaining location elastic components 133.

When the application head 140 of core band assembly 14 is the state that is accommodated in body 10; The location division 138 of location elastic component 133 is that correspondence is placed in second locating slot 121 on the moving assembly 13; When needs use this film camera lucida; Please refer again to Fig. 6 to Fig. 8, stir push button 15 along movable passageway 12 and move towards first locating slot, 120 directions, the location division 138 that second pushing block 151 of push button 15 just can move compressing location elastic component 133 slightly is flexibly withdraws from second locating slot 121; Can make first pushing block 150 and first side plate 134 lean at the same time; Move towards the direction of stretching out opening 11 in the lump together with core band assembly 14 and let push button 15 drive moving assemblies 13, the application head 140 of treating core band assembly 14 stretch out body 10 stretch out opening 11 after, the location division 138 of location elastic component 133 is corresponding and rebound and be placed in first locating slot 120 on the moving assembly 13; In the corresponding simultaneously elastic component tank 152 that is placed in push button 15 that rebounds, promptly accomplish the action of releasing core band assembly 14 application heads 140.

When not using this film camera lucida; Stirring push button 15 along movable passageway 12 moves towards second locating slot, 121 directions; The location division 138 that first pushing block 150 of push button 15 just can move compressing location elastic component 133 slightly is flexibly withdraws from first locating slot 120; Can make second pushing block 151 and second side plate 135 lean at the same time; Move towards differing from the direction of stretching out opening 11 in the lump together with core band assembly 14 and let push button 15 drive moving assemblies 13, treat the application head 140 income bodies 10 of core band assembly 14 after, the location division 138 of location elastic component 133 is corresponding and rebound and be placed in second locating slot 121 on the moving assembly 13; In the corresponding simultaneously elastic component tank 152 that is placed in push button 15 that rebounds, promptly accomplish the action of income core band assembly 14 application heads 140.

Because location elastic component 133 is fixedly to be embedded on the moving assembly 13; And be placed in first locating slot 120 or second locating slot 121 of body 10, therefore, form firm fixed point lock solid structure; Even if application head 140 is stretched out back pressurized traction; Still can keep application head 140 in stretching out state, and can not cause application head 140 to slide and the body 10 of at random withdrawing, can improve the stability that the film camera lucida uses.

Can know through aforesaid structure and manner of execution, the function that the present invention provides the application head 140 of core band assembly 14 can stretch out or take in body 10, even and if application head 140 stretch out body 10 pressurizeds when traction; Also can have stable fixed point locking effect; And contract in not understanding, in the use quite stable with smoothly, simultaneously when revise being with when using up; Also can body 10 be taken apart and install new core band assembly 14 again, can renew usefulness.

In addition; Please with reference to Fig. 9; The moving assembly 13A that first embodiment further can be provided with another kenel push button 15A that arranges in pairs or groups, wherein the structure of this moving assembly 13A includes an embeded slot 130A, a cross-perforating 131A, long straight perforation 132As, location elastic component 133A and a core band sleeve column 137A identical with above-mentioned moving assembly 13.

This moving assembly 13A is provided with two support bodys in addition; This two support body takes shape in the 138A both sides, location division of this location elastic component 133A respectively; Each support body is frame plate corresponding up and down, configured in parallel by two and forms; And this two frame plate is to be extended towards the side that this moves through hole 12 by this moving assembly 13A; Each support body differ from the frame plate inner face L type that convexes with on the sidepiece of location division 138A against flange, wherein be positioned near this and stretch out opening 11 ends and be defined as the first support body 134A, first frame plate and first against flange 1341A, differ from this and stretch out opening 11 ends and then be defined as the second support body 135A, second frame plate and second against flange 1351A.

Since the first support body 134A and the second support body 135A respectively by about corresponding and first frame plate and second frame plate configured in parallel constitute; Therefore be somebody's turn to do and locate the frame plate that elastic component 133A can directly pass through the first support body 134A and the second support body 135A; And be placed on the embeded slot 130A; Need not through being pressed through this cross-perforating 131A, can make things convenient for promptly to accomplish and install, guarantee that simultaneously this location elastic component 133A keeps original shape.

This push button 15A is mounted slidably on the movable passageway 12 of body 10; And interlock is in moving assembly 13A; This push button 15A inner face protrusion is formed with one first pushing block 150A and the one second pushing block 151A that passes movable passageway 12; And this first pushing block 150A is placed between two first frame plates of this first support body 134A, and slidably to being resisted against this first against flange 1341A; This second pushing block 151A is placed between two second frame plates of this second support body 135A; And slidably to being resisted against this second against flange 1351A; Again; Two pushing

block

150A, 151A form the inclined plane in opposite sides respectively, to surround the location division 138A of corresponding ccontaining this location elastic component 133A of an elastic component tank 152A.

Please with reference to Figure 10 to Figure 12; The action of the occupation mode of another example of first embodiment and above-mentioned first embodiment is roughly the same; But when push button 15A moves towards first locating slot, 120 directions; The first pushing block 150A slides and to be resisted against first of the first support body 134A and to come to promote forward this moving assembly 13A against flange 1341A; And when push button 15A moves towards second locating slot 121 directions, the second pushing block 151A slide be resisted against the second support body 135A second on flange 1351A, come to promote backward this moving assembly 13A.

Please with reference to Figure 13 and Figure 14; This body 10 is held at other and is formed a storage tank 16 and a ccontaining opening; This storage tank 16 and this ccontaining opening of present embodiment are formed on the later half shell 102, and this body 10 is formed with a clamping part 17 in this storage tank 16, and 17 of this clamping parts are on the two relative inner faces of the storage tank that differs from this ccontaining opening 16 the inners; Preferably, this clamping part 17 is that the right buckle slot of two compositions is arranged with respectively on the two relative inner faces of this storage tank 16 the inners.

This fixture 20 can be the rectangle framework of hollow, is removable installed on this body 10, and includes an opening, a clamping part 21, a stop edge 22 and a guidance part 23; Wherein, this opening takes shape in the outer end of this fixture 20 with respect to this body 10, and this clamping part 21 is can the extraction mode being inserted in the storage tank 16 of body 10; And be defined as the outer end in a side of nearly opening; The in addition side that differs from opening is defined as the inner, and laterally cuts open respectively at the two opposite side walls interlude and to establish elasticity profile groove 210 one, makes clamping part 21 be distinguished into two relative clamping half frames; Make two clampings, half frame slightly have the elasticity remaining of inwardly concentrating; Two clampings, half frame is formed with a fastening part 211 respectively at the lateral surface place of the inner, and correspondence is placed in the clamping part 17 on the body 10, breaks away from body 10 in order to prevent fixture 20; Preferably, this fastening part 211 is convexly set in the inner lateral surface of two clampings, half frame respectively for paired anchor point.

On two clampings, half frame of clamping part 21, form an elastic arm 212 at the central portion of clamping half frame respectively; Each elastic arm 212 1 end one is connected on the inner of clamping half frame; Other holds then extreme direction extension and side direction protrusion formation one packing protuberance 213 outside clamping part 21; And this packing protuberance 213 causes each elastic arm 212 to omit elasticity and stretches into clamping part 21 inside against the medial surface that is pushed away storage tank 16 on this body 10, but to form the fixed structure of stable holding one erasing rubber 40.

This stop edge 22 can rectangular architrave around the outer end that is formed at clamping part 21, and be resisted against the ccontaining opening part of storage tank 16 on the body 10.

This guidance part 23 can rectangular framework be formed at the outer end of clamping part 21; And extend laterally by stop edge 22; Cause between opening and the clamping part 21 of erasing rubber fixture 20 and form a bit of distance; Help yielding rubber to wipe 40 drastic deformation that when wiping, produced, break away from these clamping parts 21 or cause breakage because of drastic deformation to prevent erasing rubber 40.

This lid 30 is arranged at the end that body 10 is provided with fixture 20 with separable mode, and is sheathed on the stopper edge 22 with complete covering fixture 20, can protect effectively and prevent that erasing rubber 40 is stained.

In use, earlier fixture 20 is extracted out from body 10, and after the erasing rubber 40 of long strip type is inserted in fixture 20; Be inserted in fixture 20 in the storage tank 16 of body 10 in the lump together with erasing rubber 40 again; At this moment, because the packing protuberance 213 of two opposite sides receives the pushing and pressing of body 10, and make the inner of the elastic arm 212 inwardly concentrated clamping erasing rubbers 40 of both sides; Reach the effect of held stationary; The interlude of erasing rubber 40 is then ccontaining and be resisted against guidance part 23, and the outer end of erasing rubber 40 is slightly stretched out guidance part 23 and formed cleaning and polishing ends, thus when erasing rubber 40 when carrying out wiping; The guidance part 23 of fixture 20 has and prevents that erasing rubber 40 breaks away from the effect of clamping part 21 because of stress deformation, and the effect of buffering drastic deformation.

In addition; The curtailment that stretches out when erasing rubber 40, when breakage maybe need be changed, can fixture 20 be extracted out from the storage tank 16 of body 10, and according to user's demand and custom; The elongation that adjustment erasing rubber 40 stretches out; After the erasing rubber 40 that perhaps directly more renews, again erasing rubber 40 is planted back in the storage tank 16 of body 10 together with fixture 20 in the lump, can simple, conveniently be adjusted apace again or replacing erasing rubber 40.

Please with reference to Figure 15 to Figure 17, the second embodiment of the present invention, it includes a body 10A, a fixture 20A and a lid 30A.

The structure of this body 10A is roughly identical with first embodiment, but the clamping part 17A that is formed at storage tank 16A two relative inner faces for towards storage tank 16A inner extend collude the shape lamellar body.

This fixture 20A can be the rectangle framework of hollow, and includes a clamping part 21A and a guidance part 23A, wherein; Clamping part 21A is can the extraction mode being inserted among the storage tank 16A of body 10A; And including two corresponding holding pieces, two holding pieces extend to form pushing and pressing edge 210A respectively in opposite directions one in the inner, in order to push the inner with backstop erasing rubber 40; Help against releasing erasing rubber 40; In addition be formed with a fastening part 211A respectively in the middle section in two holding pieces, correspondence is placed on the clamping part 17A of body 10A, and fixture 20A is towards the free slippage of body 10A direction when preventing to pack erasing rubber into; Preferably, this fastening part 211A is the both sides that the right anchor point of two compositions is convexly set in the holding piece interlude respectively.

Be formed with an elastic arm 212A on two holding pieces respectively; The inner one of each elastic arm 212A is connected in holding piece; And towards one horizontal block 214A of side protrusion formation, the outer end of each elastic arm 212A then side direction protrusion forms a packing protuberance 213A, and packing protuberance 213A is against being pushed away the inner face of going up storage tank 16A or clamping part 17A in body 10A; Cause each elastic arm 212A to omit elasticity and stretch into clamping part 21A inside, but to form the fixed structure of stable holding erasing rubber 40.

This guidance part 23A can rectangular framework be formed at clamping part 21A outer end; And be arranged at the ccontaining opening part of storage tank 16A of body 10A; And extend laterally; Form a bit of distance and cause between opening and the clamping part 21A of fixture 20A, can help yielding rubber to wipe 40 drastic deformation that when wiping, produced, and prevent that erasing rubber 40 breaks away from clamping part 21A or causes breakage because of drastic deformation.

This lid 30A is arranged at the end that body 10A is provided with fixture 20A with separable mode, and is sheathed on guidance part 23A upward with complete covering fixture 20A, can protect effectively and prevent that erasing rubber 40 is stained.

The occupation mode of the second embodiment of the present invention is roughly identical with first embodiment, but the mode of adjustment or replacing erasing rubber 40 is slightly different, its explanation as back:

The curtailment that stretches out when erasing rubber 40, when breakage maybe need be changed, slightly the application of force is extracted fixture 20A out a bit of block 214A correspondence to the elastic arm 212A and is placed on the clamping part 17A of body 10A earlier, breaks away from body 10A to prevent fixture 20A; Limit clamping part 17A simultaneously between block 214 and fastening part 211A, can avoid fixture 20A at random to slide, at this moment; Because the packing protuberance 215A on the holding piece has withdrawed from body 10A; Therefore, packing protuberance 213A forms does not have the state that is resisted against clamping part 17A inner face, and then the elastic force of the inside clamping erasing rubber 40 of last two holding pieces of clamping part 21A disappears; Can easily adjust the elongation of erasing rubber 40; Or the erasing rubber 40 that directly more renews, treat that erasing rubber 40 has been changed or the elongation adjusted finishes after, again fixture 20A is pushed among the storage tank 16A of body 10A; Make fastening part 211A once more fixed card place the clamping part 17A of body 10A, can accomplish adjustment and change the step of erasing rubber 40.

Please with reference to Figure 18 to Figure 20, the third embodiment of the present invention is the film camera lucida with detachable rotary erasing rubber fixture, and it includes a body 10B, a fixture 20B and a lid 30B.

The structure of this body 10B can be identical with first embodiment, do not repeat them here.

This fixture 20B plugs among the storage tank 16B that is incorporated into body 10B with removably; And include an outer framework 21B, a stop edge 22B, a conduit 23B, a pushing block 24B and a rotary head 25B, wherein, outer framework 21B is can the extraction mode being inserted in the storage tank 16B of body 10B; And laterally cut open at interlude and to establish elasticity profile groove 210B one; Make outer framework 21B be distinguished into two relative half frames, make the inner of two halves frame slightly have the elasticity remaining of inwardly concentrating, the two halves frame is formed with a fastening part 211B respectively at two inner relatively lateral surface places; Correspondence is placed on the clamping part 17B on the body 10B; In order to prevent that fixture 20B breaks away from from body 10B, preferably, this fastening part 211B is that the right anchor point of two compositions is convexly set in respectively on the inner lateral surface of half frame.This stop edge 22B can rectangular architrave around the outer end that is formed at outer framework 21B, and be resisted against the ccontaining opening part that body 10B goes up storage tank 16B with inner face.

This conduit 23B extends in outer framework 21B inner; And and outer framework 21B between form clearance space; It is inner that the inner one of conduit 23B is connected in outer framework 21B, the outer end then outwardly the framework 21B outside then extend to through stop edge 22B and slightly stretch out body 10B, inner formation has an elongate channel 230B in order to ccontaining erasing rubber of rectangular cross section; On conduit 23B tube wall two opposite sides, extend vertically respectively to cut open and establish a guiding ditch 231B; Preferably, two guiding ditch 231B correspond respectively to the elasticity profile groove 210B on the outer framework 21B, and by the inner framework 21B and stop edge 22B outside the outer end extends beyond.

This pushing block 24B is placed in the passage 230B of conduit 23B along guiding ditch 231B direction slidably; And include a rectangle push pedal 240B and two clamping fin 241B; Wherein, push pedal 240B is in the passage 230B that erect configuration is placed in conduit 23B with form fit ground, and two clamping fin 241B are formed at push pedal 240B two opposite sides respectively; And be placed in accordingly among the guiding ditch 231B of conduit 23B; Each clamping fin 241B forms one section at the lateral surface protrusion and screws togather double wedge 242B, and medial surface then protrudes and forms a packing protuberance 243B, in order to the inner of clamping erasing rubber 40.

This rotary head 25B can be one and is the hollow cylindrical body; Be sheathed on the conduit 23B with rotary way, and be placed in outer framework 21B inside, rotary head 25B is formed with an internal thread segment 250B on internal perisporium; What correspondence was screwed together in the last two clamping fin 241B of pushing block 24B screws togather double wedge 242B; The outer end is then stretched out body 10B and is formed an adjustment ring 251B, and this adjustment ring 251B moves in order to driving pushing block 24B to adjust the erasing rubber elongation, and this adjustment ring 251B is for being posted by on the stop edge 22B.

The structure of this lid 30B can be identical with first embodiment, so will not give unnecessary details.

The third embodiment of the present invention in use; Microscler erasing rubber 40 is inserted among the passage 230B of fixture 20B upper conduit 23B; The inner of erasing rubber 40 is resisted against on the push pedal 240B of pushing block 24B; And by the packing protuberance 243B institute fixed clamp on the sandwich fin 241B, the outer end of erasing rubber 40 is then slightly stretched out rotary head 25B and is formed cleaning and polishing end, and the interlude of erasing rubber 40 then is subject to the perisporium of conduit 23B; Reach the effect that prevents that erasing rubber 40 breaks away from fixture 20B because of stress deformation thus, and the effect of buffering drastic deformation.

In addition; The curtailment that stretches out when erasing rubber 40, when breakage maybe need be changed, the adjustment ring 251B that only need rotate on the rotary head 25B makes internal thread segment 250B rotation, then the double wedge 242B that screws togather of the last two clamping fin 241B of pushing block 24B just can be along the internal thread segment 250B that rotates; And the guiding ditch 231B on conduit 23B moves towards the outer end; Can release erasing rubber 40 and be adjusted to suitable length,, then erasing rubber 40 produced to nearly opening part and just can change if will change erasing rubber 40 time.

Moreover; When the adjustment ring 251B on the backward rotation rotary head 25B, can know that in like manner pushing block 24B can clamping erasing rubber 40 and following the internal thread segment 250B on the rotary head 25B and move to the inner along the guiding ditch 231B of conduit 23B; Through aforesaid mode, take in erasing rubber 40 its overhangs of adjustment.

Please with reference to Figure 21, the fourth embodiment of the present invention is for having the film camera lucida of on-dismountable rotary erasing rubber fixture; Its structure is roughly identical with the 3rd embodiment, but outer framework 21C among the fixture 20C and conduit 23C are integrally formed at respectively on the body 10C, and on this body 10C a sheathed separably lid 30C; With complete covering fixture 20C with prevent that erasing rubber 40 is stained; The setting of stop edge then can be omitted, or outer framework among the fixture 20C and stop edge are omitted, and directly inserts with conduit 23C compartment of terrain to be formed in the body 10C; Ccontaining movably pushing block 24C in the passage 230C of conduit 23C again; And on conduit 23C sheathed rotationally rotary head 25C, and make rotary head 25C between body 10C and conduit 23C, can reach action effect like the 3rd embodiment; Because the manner of execution of the 4th embodiment is identical with the 3rd embodiment, so will not give unnecessary details in this.

Moreover; Please with reference to Figure 22 to Figure 25; The fifth embodiment of the present invention have one can release or take in core band assembly 14D and erasing rubber 40 the convolution push piece; This convolution push piece is to combine a moving assembly 13D, a push button 15D and a location elastic component 133D with three-in-one mode one, on this convolution push piece, further organizes simultaneously and establishes a core band assembly 14D and a fixture 20D in order to installing erasing rubber 40, and its structure specifies as the back:

This body 10D is microscler and at one end is formed with one and stretches out opening 11D; This body 10D is equipped with a microscler movable passageway 12D on the side therein; This movable passageway 12D is communicated to this body 10D and differs from the end in addition that this stretches out opening 11D; Extend to form one guide rail 123D on the two opposite side walls in this movable passageway 12D respectively in opposite directions; Then the compartment of terrain is recessed respectively on this two relative guide rail 123D is formed with many group locating slots, and present embodiment is to describe with three groups of locating slots, and this locating slot stretches out opening 11D end by this respectively and is defined as the first locating slot 120D, the second locating slot 121D and the 3rd locating slot 122D in regular turn towards other end.

This convolution push piece is placed in this movable passageway 12D slidably again; Wherein this convolution push piece includes integrated moving assembly 13D, push button 15D and location elastic component 133D; This moving assembly 13D is strip to being placed in this body 10D inside by movable passageway 12D; And form one against front end 130D at nearly end that this stretches out opening 11D, form a fit rear end 131D in contrast to this end in addition that stretches out opening 11D, and form a location division containing hole 132D at interlude.

This push button 15D has amount of deflection and can littlely be out of shape; Its horizontal expansion at one end forms a linkage section and is incorporated on this moving assembly 13D one-body moldedly; The recessed respectively guiding breach 150D that forms is sheathed on this guide rail 123D accordingly on this limit, linkage section two opposite sides; The elasticity corresponding groove 151D that this push button 15D is arranged in a linear with this guiding breach 150D behind then recessed respectively formation one pressurized in two opposite sides, the end in addition of this push button 15D then extends to the side of this location division containing hole 132D.

This location elastic component 133D be shaped in differ from linkage section on this push button 15D hold inner face in addition, and be provided with a location division 138D and selectively be placed among the containing hole 132D of this location division or correspondence is placed in wherein among one group of locating

slot

120D, 121D, the 122D.

This core band assembly 14D forms an application head 140D at front end and stretches out opening 11D corresponding to this; This core band assembly 14D forms a deduction part 141D at the side front end towards this convolution push piece; This deduction part 141D be sticked in this moving assembly 13D against front end 130D, and form a combination hook part 142D in the rear end of this side, this combination hook part 142D is fastened on the fit rear end 131D of this moving assembly 13D; Thus, make this core band assembly 14D interlock in this convolution push piece.

This fixture 20D is arranged at the rear end of this core band assembly 14D; And include a clamping part 21D and a guidance part 23D; The one-piece type rear end that is formed in this core band assembly 14D support body of this clamping part 21D wherein can be in order to grip the inner of erasing rubber 40, and this guidance part 23D is sheathed on this clamping part 21D and this body 10D rear end separably; And recline and guide this erasing rubber 40 with inner peripheral surface, on the rear end end face of this guidance part 23D, be formed with one erasing rubber 40 is stretched out opening.

This 5th embodiment is in folding and unfolding time spent not; Please with reference to Figure 24 and Figure 25, push button 15D is placed in the interlude of movable passageway 12D, and promptly location division 138D is placed among the second locating slot 121D; When desire is used correction band function; Please with reference to Figure 26 and Figure 27, to push push button 15D earlier and make location division 138D withdraw from the second locating slot 121D and be placed in this location division containing hole 132D, this moment, push button 15D can be slightly inclined because of pressurized; Make two elasticity corresponding groove 151D correspond respectively to two guiding breach 150D; Just can be sheathed on this guide rail 123D and upward slide towards the first locating slot 120D direction along movable passageway 12D, moving assembly 13D interlock core band assembly 14D moves and makes application head 140D stretch out opening 11D simultaneously, when to be positioned 138D slides into corresponding to the first locating slot 120D; Push button 15D just can make location division 138D resilience be placed in the first locating slot 120D elastic reset; Can make application head 140D firmly keep the location structure that stretches out body 10D, location division 138D withdrawed from behind the first locating slot 120D move to and be placed in the second locating slot 121D along movable passageway 12D if desire during with application head 140D income body 10D, is then in like manner pushed push button 15D.

When desire is used the erasing rubber function; Please with reference to Figure 26 and Figure 28; Pushing push button 15D earlier makes location division 138D withdraw from the second locating slot 121D and slides towards the 3rd locating slot 122D direction along movable passageway 12D; While moving assembly 13D interlock core band assembly 14D makes the erasing rubber 40 on the clamping part 21D stretch out the opening of guidance part 23D, and when to be positioned 138D slid into corresponding to the 3rd locating slot 122D, push button 15D just can make location division 138D resilience be placed in the 3rd locating slot 122D elastic reset; Can make erasing rubber 40 firmly keep the location structure that stretches out fixture 20D; If when desire is taken in body 10D with erasing rubber 40, then can in like manner operate, not repeat them here.In addition; If differ to this body 10D when further being provided with other group locating slots between other end that stretches out opening 11D at the 3rd locating slot 122D; Promptly can promote the clamping part 21D of fixture 20D in convolution push piece piecewise, but reach the purpose of multisection type adjustment erasing rubber 40 elongations.

Through the explanation of the foregoing description, erasing rubber 40 fixtures of the present invention possess the function that can adjust erasing rubber 40 overhangs and conveniently replaced erasing rubber 40 are arranged, and can erasing rubber 40 be released body 10 during use; Behind to be used the finishing, then can erasing rubber 40 be taken in or hides body 10 inside fully, quite meet actual demand; Also quite flexible on the function of using, simultaneously, erasing rubber 40 substitute modes that the present invention designed are quite simple; Only need fixture 20 is pulled out or rotated rotary head 25; Can take out erasing rubber 40 rapidly and change, thus, make the user easily change breakage or the erasing rubber used up 40 uses more smoothly.

In addition; Owing to be designed with clamping part 21 and guidance part 23 in the fixture 20; Design through clamping part 21 can grip the inner of erasing rubber 40 firmly; Can prevent effectively that erasing rubber 40 from coming off, the drastic deformation of the design of guidance part 23 when then yielding rubber is wiped 40 wipings effectively is with preventing that erasing rubber 40 breaks away from and the effect that absorbs erasing rubber 40 deflections.

Above-mentionedly be merely preferred embodiment of the present invention; Be not that claim of the present invention is done any pro forma restriction; Such as carry out the local equivalent embodiment that changes or modify in disclosed technical characterictic; And do not break away from essence technical spirit of the present invention, all still belong within protection scope of the present invention.

Claims

1. the film camera lucida of a tool push button locking is characterized in that, includes:

One body is formed with one at an end of this body and stretches out opening, and a side of this body is provided with a movable passageway, in this movable passageway, is formed with many group locating slots on the two opposite side walls respectively at intervals;

One is placed in the moving assembly of this body interior;

One interlock is elastic component in the location of this moving assembly, on this location elastic component, is formed with a location division, and this location division is with perpendicular to this movable passageway direction setting, and in selectively corresponding wherein one group of this locating slot that is placed in this movable passageway;

One is placed in this body interior and interlock in the core band assembly of this moving assembly, and this core band assembly is provided with one and stretches out the application head of opening corresponding to this; And

One is mounted slidably on this movable passageway of this body, and interlock is in the push button of this moving assembly, and this push button selectively pushes against this location division of this location elastic component and withdraws from corresponding this group locating slot, and this moving assembly can be moved relative to this body.

2. the film camera lucida of tool push button locking according to claim 1; It is characterized in that; This moving assembly is to should be provided with one first side plate and one second side plate on the side of movable passageway in addition; This first side plate and the corresponding respectively both sides that are placed in this movable passageway and are positioned at this location division of this location elastic component of this second side plate, this push button is formed with one first pushing block and one second pushing block that is placed between this first side plate and this second side plate at the inner face protrusion again.

3. the film camera lucida of tool push button locking according to claim 2 is characterized in that, this moving assembly includes end face and the bottom surface that two guiding side plates are arranged at this first side plate and this second side plate respectively.

4. the film camera lucida of tool push button locking according to claim 3; It is characterized in that this body includes preceding half shell and a later half shell, this preceding half shell, one end forms this and stretches out opening; End then forms a fit opening in addition, and forms an installing hole on the side therein; One end of this later half shell is inserted in this fit opening of this preceding half shell, and to be formed with on should the side of installing hole this movable passageway with should many group locating slots.

5. the film camera lucida of tool push button locking according to claim 4 is characterized in that, on preceding half shell around this installing hole, is formed with a bearing and leaning portion; Before on this later half shell, forming a fit portion correspondence and being bearing on this on this bearing and leaning portion of half shell.

6. the film camera lucida of tool push button locking according to claim 1; It is characterized in that; This moving assembly is to being provided with one first support body and one second support body that correspondence is placed in this movable passageway and is positioned at these both sides, location division on the side of movable passageway in addition; This first support body is formed with one first against flange, and this second support body is formed with one second against flange; This push button is formed with one at inner face and is placed in this first support body and slidably to against this first first pushing block against flange again, and one is placed in this second support body and slidably to against this second second pushing block against flange.

7. the film camera lucida of tool push button locking according to claim 6 is characterized in that, this first support body includes two first frame plates of correspondence, configured in parallel up and down; This second support body includes two second frame plates of correspondence, configured in parallel up and down; This first pushing block is placed between this two first frame plate again, and this second pushing block is placed between this two second frame plate.

8. the film camera lucida of tool push button locking according to claim 7; It is characterized in that this body includes preceding half shell and a later half shell, this preceding half shell, one end forms this and stretches out opening; End then forms a fit opening in addition, and forms an installing hole on the side therein; One end of this later half shell is inserted in this fit opening of this preceding half shell, and to be formed with on should the side of installing hole this movable passageway with should many group locating slots.

9. the film camera lucida of tool push button locking according to claim 8 is characterized in that, on preceding half shell around this installing hole, is formed with a bearing and leaning portion; Before on this later half shell, forming a fit portion correspondence and being bearing on this on this bearing and leaning portion of half shell.

10. according to the film camera lucida of claim 2 or the locking of 3 or 6 or 7 described tool push buttons; It is characterized in that; This of this push button first pushing block and this second pushing block form the inclined plane in opposite sides respectively, to surround an elastic component tank in order to this location division on ccontaining this location elastic component.

11. the film camera lucida of tool push button according to claim 10 locking, wherein this moving assembly is formed with one and provides this core band assembly sheathed core band sleeve column differing from the side of this movable passageway.

12. the film camera lucida of tool push button locking according to claim 1 is characterized in that, this moving assembly, this push button and this location elastic component form a convolution push piece for being combined into one; This core band component groups is located on this convolution push piece.

13. the film camera lucida of tool push button locking according to claim 12; It is characterized in that; This movable passageway is communicated to and differs from the end that this stretches out opening on this body; Extend one guide rail on the two opposite side walls in this movable passageway respectively in opposite directions, these many group locating slots are formed on this two relative guide rail the compartment of terrain respectively;

This moving assembly is placed in this body interior, and is formed with a location division containing hole; This push button at one end one is incorporated on this moving assembly; On this limit, end two opposite sides, forming a guiding breach respectively is sheathed on this guide rail accordingly; The elasticity corresponding groove that this push button is arranged in a linear with the guiding breach after two opposite sides then form a pressurized respectively, the end in addition of this push button then extends to this location division containing hole one side; And

This location elastic component is formed in one in the holding on the inner face in addition of this push button, and is provided with this location division and selectively is placed in this location division containing hole or correspondence is placed in wherein in one group of this locating slot.

14. the film camera lucida of tool push button locking according to claim 13 is characterized in that this core band assembly is provided with a fixture in order to the clamping erasing rubber at the end in contrast to application head.

15. the film camera lucida of tool push button locking according to claim 14; It is characterized in that; But this fixture includes one to be arranged on this core band assembly and the clamping part of clamping erasing rubber; And one be sheathed on this clamping part and this body rear end separably guidance part, on this guidance part, form one erasing rubber is stretched out opening.

16. the film camera lucida of tool push button locking according to claim 1; It is characterized in that this body differs from the end in addition that stretches out opening and is formed with a storage tank, in this storage tank, is equiped with a fixture; This fixture includes an opening, a clamping part and a guidance part; This opening takes shape in the outer end of this fixture with respect to this body, and this clamping part is for being placed in this storage tank of this body towards opening direction, with adjustment erasing rubber elongation movably; This clamping part is provided with two relatively and in order to the packing protuberance of folder system erasing rubber; And this guidance part is arranged on this clamping part, and extends laterally between this opening make this fixture and this clamping part and form a segment distance, the distortion in order to guiding and yielding rubber wiping after stressed.

17. the film camera lucida of tool push button locking according to claim 16; It is characterized in that; This fixture is can the extraction mode being arranged in the storage tank of this body; On the relative two sides of this clamping part, be formed with an elastic arm respectively, it is inner that respectively the inner one of this elastic arm is connected in this clamping part, and respectively this elastic arm outer end is then towards extending laterally this packing protuberance that is formed with in order to folder system one erasing rubber.

18. the film camera lucida of tool push button according to claim 17 locking is characterized in that this body is formed with a clamping part on this storage tank medial surface, this clamping part the inner be formed with one in order to this clamping part fastening part of buckle mutually.

19. the film camera lucida of tool push button according to claim 18 locking is characterized in that this clamping part is paired buckle slot, it is arranged with respectively in storage tank on the two relative inner faces; This fastening part be two form to and the corresponding anchor point that is snapped in this paired buckle slot, it is convexly set in respectively on the clamping part two relative lateral surfaces.

20. film camera lucida according to arbitrary described tool push button locking in the claim 17 to 19; It is characterized in that; Interlude laterally cuts open and establishes the elasticity profile groove one this clamping part in the two side, make this clamping part be distinguished into two relative clamping half frames, and this two elastic arm is arranged on this two clampings, half frame respectively.

21. the film camera lucida of tool push button locking according to claim 19 is characterized in that this fixture further is provided with a stop edge in this clamping part outer end, it is resisted against the opening part of this storage tank on this body.

22. the film camera lucida of tool push button locking according to claim 20 is characterized in that, further covering jacket is provided with a lid on this fixture.

23. the film camera lucida of tool push button according to claim 18 locking is characterized in that, this clamping part is to be formed to collude the shape lamellar body on these storage tank two relative inner faces; This fastening part be two form to and the corresponding anchor point that is snapped in this clamping part, it is convexly set in respectively on these clamping part two relative lateral surfaces.

24. the film camera lucida of tool push button locking according to claim 23; It is characterized in that; This clamping part includes two corresponding holding pieces; This two holding piece extends to form one respectively in opposite directions in order to the inner pushing and pressing edge of pushing and pressing erasing rubber in the inner, this two elastic arm is arranged at respectively on this holding piece again.

25. according to the film camera lucida of claim 16 or 17 or 18 or 23 or 24 described tool push button lockings, further covering jacket is provided with a lid on the wherein said fixture.

26. the film camera lucida of tool push button locking according to claim 16; It is characterized in that; This fixture includes a conduit, a pushing block and a rotary head, corresponding this guidance part that forms this fixture of this conduit, and this conduit forms the elongate channel of a guiding and ccontaining erasing rubber in inside; And on the tube wall of this conduit two opposite sides cut open vertically respectively establish one the guiding ditch; This pushing block is placed in this passage of this conduit slidably and forms this clamping part of this fixture, forms this this packing protuberance in order to folder system erasing rubber respectively in these pushing block both sides, and is formed with one in these pushing block both sides respectively and screws togather the double wedge correspondence and be placed in this two guidings ditch of this conduit; This rotary head is sheathed on this conduit with rotary way; And on the internal perisporium of this rotary head, be formed with an internal thread segment, and correspondence is screwed together on this pushing block this and two screws togather double wedge, and the outer end of this rotary head then is formed with one can drive the adjustment ring that this pushing block moves adjustment erasing rubber elongation after rotation.

27. the film camera lucida of tool push button locking according to claim 26; It is characterized in that this pushing block further includes a push pedal and two clamping fins, this push pedal is placed in this passage of this conduit; This two clampings fin is formed at this push pedal two opposite sides respectively; And be placed in accordingly in this guiding ditch of this conduit, and this two packings protuberance takes shape in the medial surface of this two clampings fin respectively, and this two screws togather the lateral surface that double wedge takes shape in this two clampings fin respectively.

28. film camera lucida according to claim 26 or 27 described tool push button lockings; It is characterized in that; This fixture further includes an outer framework, and it is inner that this conduit compartment of terrain is inserted in this outer framework again, and the inner one of this conduit is connected in this outer framework the inner; This outer end of conduit stretches out in this outer framework, and this rotary head is arranged at this conduit and is somebody's turn to do between the outer framework again.

29. the film camera lucida of tool push button according to claim 28 locking is characterized in that this body is formed with a clamping part on this storage tank medial surface, outside this framework the inner be formed with one in order to this clamping part fastening part of buckle mutually.

30. the film camera lucida of tool push button according to claim 29 locking is characterized in that, this clamping part is two to form right buckle slots, and it is arranged with respectively in storage tank on the two relative inner faces; This fastening part be two form to and the corresponding anchor point that is snapped in this paired buckle slot, it is convexly set in respectively on these outer framework two relative lateral surfaces.

31. the film camera lucida of tool push button locking according to claim 30 is characterized in that this outer framework is laterally cutd open at interlude and established the elasticity profile groove one, makes this housing tagma be divided into relative two halves frame.

32. the film camera lucida of tool push button locking according to claim 31 is characterized in that this fixture further is provided with a stop edge in the external end of housing, it is resisted against the opening part of this storage tank on this body.

33. the film camera lucida of tool push button locking according to claim 32 is characterized in that this conduit outer end extends to through this stop edge, and this adjustment ring is posted by on this stop edge.

34. the film camera lucida of tool push button locking according to claim 33 is characterized in that, this two guidings ditch corresponds respectively to this two elasticity profile groove on this outer framework, and extends beyond this stop edge towards the outer end by the inner of this outer framework.

35. the film camera lucida of tool push button locking according to claim 28 is characterized in that, further covering jacket is provided with a lid on this fixture.

36. the film camera lucida of tool push button locking according to claim 28 is characterized in that this outer framework is laterally cutd open at interlude and established the elasticity profile groove one, makes this housing tagma be divided into relative two halves frame.

37. the film camera lucida of tool push button locking according to claim 36 is characterized in that this fixture further is provided with a stop edge at the external end of this housing, it is resisted against the opening part of this storage tank on this body.

38. the film camera lucida of tool push button locking according to claim 36 is characterized in that, this two guidings ditch corresponds respectively to this two elasticity profile groove on this outer framework, and extends beyond this stop edge towards the outer end by the inner of this outer framework.

39. the film camera lucida according to arbitrary described tool push button locking in the claim 1 to 9 is characterized in that, this moving assembly is formed with a core band sleeve column differing from the side of this movable passageway.