CN103510691B - Caulking gun - Google Patents
Caulking gun Download PDFInfo
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- CN103510691B CN103510691B CN201310252870.3A CN201310252870A CN103510691B CN 103510691 B CN103510691 B CN 103510691B CN 201310252870 A CN201310252870 A CN 201310252870A CN 103510691 B CN103510691 B CN 103510691B
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Abstract
The invention provides a kind of caulking gun.In the electrodynamic type caulking gun taking electro-motor as drive source, although have when be configured to discharge cut off power after gap filler and extruded rod is moved freely prevent from thus dripping thereafter, after cut-out power, preventing its technology excessively returned thus from laterally giving resistance to extruded rod immediately, but there is the problem that extruded rod declines based on deadweight after removing resistance.In the present invention, the extruded rod becoming the state that can move freely by cutting off power can be prevented because conducting oneself with dignity, vibrating the situation causing movement.The parts (downstream transferring elements (32)) rotated moving freely along with extruded rod (6) by magnet (41) give rotational resistance, indirectly give suitable moving resistance to extruded rod (6) thus.
Description
Technical field
The present invention relates to for carrying out silicon system filler etc. like a cork (following, referred to as gap filler) the fill tool (so-called caulking gun) of filling operation, wherein, silicon system filler etc. for such as by the repairing etc. of the repairing in the crackle of house outer wall, gap or the bath in bathroom and the seam of wall be main repairing for the purpose of the waterproof of constructional materials.
Background technology
The sleeve being the gap filler of silicone sealant (siliconsealant) etc. as the such as name of product enclosing certain capacity generally commercially has sale, usually this sleeve is installed on special caulking gun and comes for filling operation.
In general caulking gun, hold the bar enforcement pull operation of handle portion to trigger form and move to make extruded rod, gap filler can be extruded from the nozzle of sleeve thus.In addition, because use the caulking gun of this complete hand repeatedly to carry out extrusion operation and easily tired, so providing a kind of take electro-motor as the electrodynamic type caulking gun of drive source.The such as open technology relevant to this electrodynamic type caulking gun in following patent document.According to this electrodynamic type caulking gun, be configured to start by the making operation of switch lever the structure that electro-motor makes extruded rod movement, because be not configured to using the structure of the operating physical force of bar as extruding force as the situation of hand, so user can carry out filling operation like a cork repeatedly.
Patent document 1: Japanese Patent No. 3598565 publication
Patent document 2: Japanese Laid-Open Patent Publication 58-137465 publication
Patent document 3: Japanese Unexamined Patent Publication 1-57628 publication
Patent document 4: Japanese Unexamined Patent Publication 6-47328 publication
But, in electrodynamic type caulking gun, there is the problem of discharging the so-called rear drippage of gap filler after making electro-motor just stop based on the residual pressure in sleeve.In above-mentioned patent document 1, the technology of the open problem for eliminating this rear drippage.According to the anti-locking mechanism of this existing rear drippage, be configured to make immediately electro-motor to reverse after opening operation and return mandatory for extruded rod, the residual pressure thus in releasing sleeve and prevent rear drippage.
But, according to the anti-locking mechanism of above-mentioned existing rear drippage, return mandatory for extruded rod because make electro-motor reverse, so produce gap between the rear end face (face of squeezed pressure bar pressing) and the front end of extruded rod of sleeve.Therefore, when next time starts electro-motor, extruded rod presses on the rear end face of sleeve after sky walks this gap length, thus there is the problem of the time lag (delay of time) producing this idling braking time length (gap length).
In addition, in patent document 4, following technology is disclosed: in electronic caulking gun, interim from laterally preventing it from excessively returning to extruded rod applying resistance immediately after extruded rod being cut off from power source with power cutoff mechanism, suppress above-mentioned time lag thus.But, according to above-mentioned prior art, there are the following problems: after cut-out power, only apply resistance to extruded rod temporarily, remove resistance extruded rod afterwards and become the free state cut off completely from power source, so such as when making this caulking gun upward extruded rod decline because of deadweight, thus between extruded rod and the rear end face of sleeve, produce large gap, large time lag is produced when next time starts.
Summary of the invention
The present invention produces in order to the above-mentioned existing problem eliminated about electrodynamic type caulking gun, and object is can not produce above-mentioned existing such time lag and prevent rear drippage.
Solved the above problems by following invention.
In the caulking gun of the first invention, this caulking gun is electrodynamic type caulking gun, with electro-motor be drive source extruded rod is pressed on sleeve installation portion install the sleeve that gap filler is housed discharge to make gap filler from sleeve, wherein, above-mentioned caulking gun possesses transmit mode switching part, in the way of the power transfer path of this transmit mode switching part between electro-motor with extruded rod can this power transfer path is connected by the power transmission of electro-motor to the power delivery status of extruded rod, and this power transfer path is cut off and allows and switch between the power released state of extruded rod relative to the power movement independently of electro-motor, this transmit mode switching part possesses rotational resistance member of imparting, the rotary part that this rotational resistance member of imparting rotates the movement along with extruded rod under power released state gives rotational resistance to limit rotating freely of this rotary part.
According to the first invention, switch to power released state by transmit mode switching part, extruded rod is cut off from the power transfer path of electro-motor, and becomes the state that independently can move freely relative to the power of electro-motor in its advance and retreat both direction.The state that can move freely is become thus this extruded rod retreats with compressive plane integratedly based on the residual pressure in sleeve, the residual pressure thus in releasing sleeve and prevent rear drippage by extruded rod.
Like this, cut off from the power transfer path of electro-motor by extruded rod and become the state that can move freely, this extruded rod retreats with the compressive plane of sleeve integratedly along with the residual pressure of releasing sleeve, so do not produce gap between the compressive plane of sleeve and the front end of extruded rod, excessively returning when therefore not producing being reversed by electro-motor thus making the mandatory retrogressing of extruded rod as in the past, does not thus produce the time lag suitable with this gap length when next time extrudes.
And, under the state that can move freely cut off from the power transfer path taking electro-motor as drive source, the rotary part of transmit mode switching part becomes the state utilizing rotational resistance member of imparting to limit it to rotate freely, so although extruded rod is in the state that can move freely cut off from the power transfer path taking electro-motor as drive source, but it is moved freely and gives suitable resistance, even if so also can prevent the situation that this extruded rod declines based on deadweight when such as making this caulking gun upward, the front end of this extruded rod remains the state of the compressive plane being connected to sleeve thus, therefore, it is possible to time lag when reliably preventing extruding next time further.
In addition, be configured to come indirectly to the structure moving freely the suitable resistance of imparting of extruded rod by giving rotational resistance to rotary part, therefore be configured to directly give compared with the structure of moving resistance to extruded rod in the past, by less resistance, so can with simple and easy and compact structure realizes object.
According to the first invention, in the caulking gun of the second invention, transmit mode switching part possesses following structure: power transmission pin is located at be arranged at the smooth transmission diverter surface that the outer peripheral face of the upstream side transferring elements of the upstream side of power transfer path is arranged, and between the power transmission face of the circle arranged at the inner peripheral surface of the downstream transferring elements being arranged at downstream, and by upstream side transferring elements relative to downstream transferring elements along direction of rotation relative displacement thus the power transmission face of making and the interval of transmitting between diverter surface change, and power transmission pin is being clamped into the power delivery status transmitting power between this two sides, and switch between the power released state removed this to sandwich state and power transfer path is cut off, be configured to utilize rotational resistance member of imparting to give rotational resistance to the downstream transferring elements as rotary part.
According to the second invention, the power transmission pin between the transmission diverter surface and the power transmission face of downstream transferring elements of upstream side transferring elements is clamped between two sides, and the rotary power of electro-motor is passed to extruded rod and is discharged from sleeve by gap filler thus.Electro-motor stops, such as slightly reverse afterwards, that removes power transmission pin thus sandwiches state, and become power released state that downstream transferring elements can rotate relatively relative to upstream side transferring elements and then become the state (state that can move freely) that extruded rod can retreat independently relative to the power of electro-motor, therefore extruded rod retreats based on the residual pressure in sleeve and discharges this residual pressure, prevents rear drippage thus.
Like this, in the transmit mode switching part being equivalent to clutch, under power released state, downstream transferring elements rotates along with the movement of the extruded rod that can move freely, so utilize rotational resistance member of imparting to give rotational resistance to this downstream transferring elements (rotary part), indirectly give moving resistance to moving freely of extruded rod thus.
According to the first or second invention, in the caulking gun of the 3rd invention, rotational resistance member of imparting adopts magnet.
According to the 3rd invention, suitable rotational resistance can be given by easy structure to the downstream rotary part as rotary part.
Accompanying drawing explanation
Fig. 1 is the unitary side view of the caulking gun of embodiments of the present invention.The bushed state of peace is shown in detail in this figure.
Fig. 2 is the in-built lateral view of the caulking gun representing present embodiment.
Fig. 3 is Fig. 1 (III) direction view, and is the top view of the caulking gun of present embodiment.
Fig. 4 is Fig. 2 (IV)-(IV) line cutting direction view, and is the sectional elevation of drive division.
Fig. 5 is the exploded perspective view of transmit mode switching part.
Fig. 6 is the sectional elevation of transmit mode switching part.This figure represents power delivery status.
Fig. 7 is the sectional elevation of transmit mode switching part.This figure represents power released state.
The explanation of Reference numeral:
1... caulking gun; 2... main part; 2a... body shell; 3... sleeve; 3a... nozzle; 3b... compressive plane; 4... sleeve installation portion; 4a... leading section; 5... handle portion; 5a... switch lever; 5b... battery installation section; 6... extruded rod; 6a... pressing plate; 6b... handle; 6c... tooth-strip part; 7... battery pack; 8... fixed sleeving; 10... electro-motor; 10a... output shaft; 11... driving pulley; 12... transfer tape; 20... reduction gear; 20a... gear housing; 20b... bearing; The right inside gear of 20c...; The left inside gear of 20d...; 20e... case lid; 20f... retaining hole; 21... power shaft; 21a... first order central gear; 22... driven pulley; 23... first order epicyclic train; 23a... first order planetary gear; 23b... first order pinion frame; 23c... second level central gear; 24... second level epicyclic train; 24a... second level planetary gear; 24b... second level pinion frame; 25... third level epicyclic train; 25a... third level planetary gear; 25b... third level pinion frame; 26... driving shaft; 26a... third level central gear; 27... bearing; 28... rubber ring; 30... transmit mode switching part; 31... upstream side transferring elements; 31a... transmits diverter surface; 31b... engages protuberance; 32... downstream transferring elements; 32a... power transmission face; 33... power transmission pin; 34... support is sold; 34a... flange part; 34b... engaging recessed part; 34c... bearing post portion; 35,36... bearing; 40... driven wheel; 41... rotational resistance member of imparting (magnet); J... parallel with the power shaft 10a of electro-motor 10 axis.
Detailed description of the invention
Next, based on Fig. 1 ~ Fig. 7, embodiments of the present invention are described.Fig. 1 ~ Fig. 3 represents the electrodynamic type caulking gun 1 of present embodiment.This caulking gun 1 possesses: main part 2, and it is built with the electro-motor 10 as drive source; Sleeve installation portion 4, it is for installing the sleeve 3 containing gap filler; And handle portion 5, it holds for user.
In the front portion of main part 2, forwards outstanding state is provided with sleeve installation portion 4.Sleeve installation portion 4 has semi-cylindrical shape, keeps this sleeve 3 with the state of bearing sleeve 3 from below.The nozzle 3a of sleeve 3 gives prominence to from the leading section 4a of sleeve installation portion 4.By unclamping screw type fixed sleeving 8, lower sleeve installation portion 4 can be unloaded from main part 2.
Extruded rod 6 is given prominence to from the front portion of main part 2.This extruded rod 6 is set to move freely along the longitudinal direction in sleeve installation portion 4.The pressing plate 6a of the compressive plane 3b pressing on sleeve 3 is provided with in the front end of this extruded rod 6.In fig. 2, extruded rod 6 is set to move freely between the front position represented with solid line of pressing plate 6a and the retrogressing end position represented with double dot dash line.The rear end side of extruded rod 6 is rearward given prominence to from main part 2, is provided with the handle 6b of the pull operation held for user at this ledge.At the soffit of extruded rod 6, its long side direction is provided with tooth-strip part 6c.This tooth-strip part 6c engages with driven wheel 40 described later.Extruded rod 6 under power delivery status is advanced via the power transfer path comprising the rack and pinion mechanism be made up of tooth-strip part 6c and driven wheel 40.
Handle portion 5 is set to the state extended from the soffit of main part 2 downwards.The base front surface of handle portion 5 is provided with switch lever 5a, and the finger tip that this switch lever 5a holds hand used for user implements pull operation.If implement pull operation (making operation) to this switch lever 5a, be then loaded on the electro-motor 10 of main part 2 in startup of just changing one's position.If remove pull operation (opening operation), then electro-motor 10 stops after slightly reversing.The bottom of handle portion 5 is provided with battery installation section 5b.At this battery installation section 5b, battery pack 7 is installed.Electro-motor 10 with this battery pack 7 for power work.Battery pack 7 is TunePower, by it being unloaded from battery installation section 5b and being undertaken charging by the charger prepared in addition and can Reusability.
The internal structure of main part 2 shown in Figure 4.Rear portion side in the body shell 2a of main part 2 contains electro-motor 10.At the output shaft 10a of electro-motor 10, driving pulley 11 is installed.Reduction gear 20 is configured with in the front side of electro-motor 10.The power shaft 21 of reduction gear 20 is configured to rotate around the axis J parallel with the output shaft 10a of electro-motor 10.At this power shaft 21, the diameter driven pulley 22 larger than driving pulley 11 is installed.Transfer tape 12 is set up between the driving pulley 11 and the driven pulley 22 in large footpath of path.The rotary power of electro-motor 10 to be slowed down with certain speed reducing ratio by this band transmission mechanism and inputs to reduction gear 20.
At reduction gear 20 built with first ~ third level epicyclic train 23 ~ 25 and transmit mode switching part 30.Power shaft 21 via be installed on body shell 2a right side bearing 2b and be installed on case lid 20e right side bearing 20b and be supported to and can rotate.The first order central gear 21a of first order epicyclic train 23 is formed at this power shaft 21.3 first order planetary gear 23a ~ 23a engage with this first order central gear 21a.Each first order planetary gear 23a engages with the right inside gear 20c of the right side being installed on gear housing 20a respectively.3 first order planetary gear 23a ~ 23a are rotatably supported in first order pinion frame 23b respectively.The second level central gear 23c of second level epicyclic train 24 is formed at this first order pinion frame 23b.3 second level planetary gear 24a ~ 24a engage with this second level central gear 23c.This second level planetary gear 24a ~ 24a also engages with above-mentioned right inside gear 20c.3 second level planetary gear 24a ~ 24a are rotatably supported in second level pinion frame 24b respectively.In this second level, pinion frame 24b is provided with driving shaft 26.The rotary power of the electro-motor 10 slowed down via band transmission mechanism is slowed down by above-mentioned first and second level epicyclic train 23,24 and is passed to driving shaft 26 further.
Driving shaft 26 and power shaft 21 configure coaxially.Therefore, driving shaft 26 is configured to axis J that can be parallel around the output shaft 10a (rotation) with electro-motor 10 and rotates.Driving shaft 26 arrives the left side of main part 2.The left part of driving shaft 26 is supported on body shell 2a via bearing 27 in the mode that can rotate.The third level central gear 26a of third planet gear train 25 is formed in the left part of this driving shaft 26.3 third level planetary gear 25a ~ 25a engage with this third level central gear 26a.Each third level planetary gear 25a engages with the left inside gear 20d of the left side being installed on gear housing 20a.3 third level planetary gear 25a ~ 25a are rotatably supported in third level pinion frame 25b respectively.
The rotary power of driving shaft 26 is slowed down further by third level epicyclic train 25 and inputs to transmit mode switching part 30.As shown in the figure, this transmit mode switching part 30 is coaxial with driving shaft 26, and is configured at the substantial middle of the left and right width of main part 2.The rotary power during rotating forward of driving shaft 26 and then electro-motor 10 is passed to driven wheel 40 via this transmit mode switching part 30, thus the extruded rod 6 engaged with this driven wheel 40 is advanced.
, observe the bang path from electro-motor 10 to the rotary power of driven wheel 40 herein, first rotary power inputs to power shaft 21 in the right part of main part 2 via band delivery type reducing gear.The rotary power inputing to power shaft 21 inputs to driving shaft 26 via the first order and second level epicyclic train 23,24.The rotary power being passed to driving shaft 26 inputs to third level epicyclic train 25 in its left part.The left and right directions of third level epicyclic train 25 towards (third level pinion frame 25b is relative to the position relationship of third level central gear 26a) and the first order and second level epicyclic train 23,24 contrary.The rotary power inputing to third level epicyclic train 25 is passed to driven wheel 40 via transmit mode switching part 30.
Like this, the bang path of J-shaped is constructed as follows: the rotary power of the electro-motor 10 inputted from the right-hand member side of main part 2 is turning back to the left and right width central authorities of main part 2 and is being passed to driven wheel 40 after from the right-hand member side of main part 2 to the path of left end side.According to the bang path of above-mentioned rotary power, axis J is configured with multi-stage speed-reducing gear train (epicyclic train) thus can realization body portion 2 left and right width densification and large speed reducing ratio can be obtained, and extruded rod 6 can be configured in the mode of the width central authorities crossing main part 2.
The details of transmit mode switching part 30 shown in Fig. 5 ~ Fig. 7.Transmit mode switching part 30 possesses the structure clamping multiple power transmission pin 33 ~ 33 between upstream side transferring elements 31 and the downstream transferring elements 32 in downstream, wherein, coaxially and be arranged at the third level pinion frame 25b of the upstream side as power transfer path integratedly, this downstream transferring elements 32 is provided integrally with driven wheel 40 to this upstream side transferring elements 31.
Upstream side transferring elements 31 has nine prismatic shape by be formed at its outer peripheral face 9 smooth transmission diverter surface 31a ~ 31a.1 power transmission pin 33 has respectively been abutted at each transmission diverter surface 31a.9 power transmission pin 33 ~ 33 are remained on circumferentially same by pin support 34 at substantially equal intervals.As shown in the figure, 9 bearing post portion 34c ~ 34c altogether are circumferentially provided integrally with at pin support 34 along same.These 9 bearing post portion 34c ~ 34c are parallel to each other and extend along axis J direction.1 power transmission pin 33 is adjacent between two bearing post portions 34c, 34c can be held in along the state of the radial direction of this pin support 34 (radiation direction) displacement.The flange part 34a of this pin support 34 is provided with 3 engaging recessed part 34b ~ 34b.3 engaging recessed part 34b ~ 34b are configured at 3 position of halving of circumference.In the right side of third level pinion frame 25b, be provided with 3 accordingly with these 3 engaging recessed part 34b ~ 34b and engage protuberance 31b ~ 31b.Under the state making 3 engaging protuberance 31b ~ 31b enter in engaging recessed part 34b respectively, flange part 34a is connected to the right flank of third level pinion frame 25b, thus 9 power transmission pin 33 ~ 33 via pin support 34 circumferentially decile be configured at the outer circumferential side of upstream side transferring elements 31.
Can in the scope of displacement in each engaging recessed part 34b at engaging protuberance 31b, upstream side transferring elements 31 can rotate relatively relative to pin support 34.Relatively rotated relative to pin support 34 by upstream side transferring elements 31, each diverter surface 31a that transmits is relative to the circumferentially displacement of each power transmission pin 33.
As shown in Figure 4, the side face of third level pinion frame 25b and rubber ring 28 sliding-contact of toroidal.This rubber ring 28 is fixed along the inner surface of gear housing 20a.By this rubber ring 28 and the side face sliding-contact of third level pinion frame 25b, the direction of rotation of this third level pinion frame 25b gives suitable rotational resistance.The rotational resistance suitable based on this and the position of rotation of (non rotating state) when electro-motor 10 stops of this third level pinion frame 25b can be kept.
Each power transmission pin 33 is held between the transmission diverter surface 31a of upstream side transferring elements 31 and the inner peripheral surface (power transmission face 32a) of downstream transferring elements 32.Therefore, if by upstream side transferring elements 31 rotations relative to pin support 34 thus respectively transmission diverter surface 31a is relative to the circumferentially displacement of each power transmission pin 33, then the interval between the power transmission face 32a of downstream the transferring elements 32 and transmission diverter surface 31a of upstream side transferring elements 31 changes.
As shown in Figure 6, if by the making operation electro-motor 10 of switch lever 5a to rotate forward sideway swivel thus upstream side transferring elements 31 relative to pin support 34 along figure hollow core arrow A shown in forward direction (being clockwise direction in figure 6) relative displacement, then the interval between the power transmission face 32a of each power transmission pin 33 downstream transferring elements 32 and the transmission diverter surface 31a of upstream side transferring elements 31 is diminished.If the interval between two sides 32a, 31a diminishes, then each power transmission pin 33 is clamped between two sides 32a, 31a and becomes interlocking pattern, and the rotary power of just changing one's position becoming upstream side transferring elements 31 is thus passed to the power delivery status of downstream transferring elements 32.As shown in the figure, in this stage, because engaging protuberance 31b is not connected to the end of engaging recessed part 34b, thus the rotary power of upstream side transferring elements 31 by power transmission pin 33 ~ 33 interlocking pattern and be reliably passed to downstream transferring elements 32.
On the other hand, stopped after slightly reversing by the opening operation electro-motor 10 of switch lever 5a.As shown in Figure 7, if electro-motor 10 reverses slightly, then upstream side transferring elements 31 relative to pin support 34 along figure hollow core arrow B shown in reverse directions (be in the figure 7 counterclockwise) relative displacement, thus become maximum for each power transmission pin 33 power transmission face 32a and the interval of transmitting between diverter surface 31a.If the interval between two sides 32a, 31a becomes maximum, then the state that sandwiches between two sides 32a, 31a of each power transmission pin 33 is removed, thus becomes the upstream side transferring elements 31 power released state cut-off relative to the bang path of the rotary power of downstream transferring elements 32.As shown in the figure, in this stage, engaging protuberance 31b is connected to the end of engaging recessed part 34b, thus becomes the relative rotation confined state along reverse directions of upstream side transferring elements 31 relative to pin support 34.In this condition, each power transmission pin 33 is positioned at the central authorities transmitting diverter surface 31a, and the gap-forming of transmitting between diverter surface 31a and power transmission face 32a is maximum state.Therefore, it is possible to the state that sandwiches being maintained each power transmission pin 33 is by the state removed, thus power released state can be maintained.The power released state of this transmit mode switching part 30 also can maintain under the halted state of electro-motor 10.
As mentioned above, because the side face sliding-contact of rubber ring 28 and third level pinion frame 25b thus the position of rotation of this third level pinion frame 25b can be kept, so the rotation stop position under the halted state of electro-motor 10 of this third level pinion frame 25b and then upstream side transferring elements 31 can be kept, the power released state under the halted state of electro-motor 10 also reliably can be maintained thus.
Like this, if by electro-motor 10 just then arrow A from upstream side transferring elements 31 to Fig. 6 hollow core shown in just change one's position and relatively rotate, then transmit mode switching part 30 becomes the power delivery status shown in Fig. 6 thus rotary power is passed to downstream transferring elements 32.If slightly reversed by the opening operation electro-motor 10 of switch lever 5a thus arrow B from upstream side transferring elements 31 to Fig. 7 hollow core shown in reversion side relatively rotate, then transmit mode switching part 30 becomes the cut-off power released state of power transfer path between upstream side transferring elements 31 and downstream transferring elements 32.Under this power released state, because extruded rod 6 is cut off and independence from the rotary power bang path of electro-motor 10, so this extruded rod 6 become such as by holds handle 6b and forwards press with hand and can make it advance, otherwise by rearward pull and can make it retreat the state that can move freely.
Downstream transferring elements 32 is rotatably supported in gear housing 20a via bearing 35,36.This downstream transferring elements 32 also supports as can rotate around axis J.The outer peripheral face of downstream transferring elements 32 is provided with driven wheel 40.As shown in Figure 4, driven wheel 40 is positioned at the substantial middle of the left and right width of main part 2.Therefore, the mode that the extruded rod 6 of tooth-strip part 6c had for the engagement of this driven wheel 40 is configured to cross the substantial middle of the left and right width of main part 2 with front and back is retreated.
Extruded rod 6 becomes the state that can move freely under the power released state making electro-motor 10 stop.Under the state that this can move freely, the manual operation rearward pulled by catching its handle 6b and extruded rod 6 can be turned back to rear.If layback moves extruded rod 6 and makes it to retreat backward, just sleeve 3 can be loaded on sleeve installation portion 4.After sleeve 3 is loaded on sleeve installation portion 4, presses the extruded rod 6 under the state that can move freely with hand to front side, thus become the state making the pressing plate 6a of extruded rod 6 be connected to the compressive plane 3b of sleeve 3.Above, the installation of sleeve 3 terminates.
If carry out pull operation with finger tip to the switch lever 5a that user holds handle portion 5, then electro-motor 10 is to startup of just changing one's position.The rotary power of electro-motor 10, after the band reducing gear by having the driving pulley 11 of transfer tape 12 and driven pulley 22 to form by erection slowing down, inputing to reduction gear 20 and slowing down further.In reduction gear 20, the rotary power of electro-motor 10 is slowed down further by the first order ~ third level epicyclic train 23 ~ 25.Rotary power after being slowed down by the first order of right side and second level epicyclic train 23,24 that are configured at main part 2 inputs to the third level epicyclic train 25 of the left side being configured at main part 2 via driving shaft 26.The transmit mode switching part 30 of the substantial middle of the left and right width being configured at main part 2 is inputed to by the rotary power after this third level epicyclic train 25 slows down.
At electro-motor 10 under the state rotating forward sideway swivel, be formed as the power delivery status that each power transmission pin 33 is clamped between each transmission diverter surface 31a of upstream side the transferring elements 31 and power transmission face 32a of downstream transferring elements 32 based on chock effect in transmit mode switching part 30.Based on this power delivery status, the rotary power of electro-motor 10 exports driven wheel 40 to.If driven wheel 40 rotates based on rotary power, then extruded rod 6 is advanced with engaging of tooth-strip part 6c by this driven wheel 40.If extruded rod 6 is advanced, then utilize its pressing plate 6a to the compressive plane 3b of discharge direction pressing sleeve 3 thus discharge gap filler from nozzle 3a.
After discharging a certain amount of gap filler from nozzle 3a, if the pull operation (opening operation) of user's cancel switch bar 5a, then electro-motor 10 stops, and slightly reverses afterwards.If electro-motor 10 reverses, then transmit mode switching part 30 switches to the power released state shown in Fig. 7 as described above.Under this power released state, extruded rod 6 is separated from the power transfer path of electro-motor 10 and becomes the state that can move freely.If extruded rod 6 becomes the state that can move freely, then extruded rod 6 is rearward pressed with compressive plane 3b one based on the residual pressure in sleeve 3 and returns, and prevents the so-called rear drippage from nozzle 3a thus.
Like this, extruded rod 6 is cut off from the power transfer path being drive source with electro-motor 10 based on the power released state transmitting switching part 30 thus becomes the state that can move freely.Extruded rod 6 under the state can move freely this gives certain moving resistance.As shown in FIG. 4 and 5, the magnet 41 as rotational resistance member of imparting is configured with in the side of downstream transferring elements 32.This magnet 41 uses the permanent magnet of cylindrical shape in the present embodiment.The press-in of this magnet 41 is held in and is arranged in the retaining hole 20f of gear housing 20a.Body shell 2a plays function as lid, prevents magnet 41 from coming off from retaining hole 20f thus.Magnet 41 remains the state vacating small gap between itself and the side face of downstream transferring elements 32.By this magnet 41 magnetic force and give suitable rotational resistance to downstream transferring elements 32.
Utilize these magnet 41 pairs of downstream rotary parts 32 as rotational resistance member of imparting to give certain rotational resistance, give suitable moving resistance to the extruded rod 6 under the state that can move freely thus.Thus, extruded rod 6 is cut off from the power transfer path that is drive source with electro-motor 10 and becomes the state (such as can by the hand operation of user the state of movement) that can move freely, but utilize magnet 41 pairs of extruded rods 6 indirectly to give suitable moving resistance, thus can prevent when with such as make the sleeve installation portion 4 of caulking gun 1 posture upward upward hold this caulking gun 1 extruded rod 6 based on its deadweight and decline or based on vibration etc. and retreat.Therefore, even if extruded rod 6 is in the state that can move freely that can be moved freely operation by hand operation, also reliably this caulking gun 1 can be maintained the state making the pressing plate 6a for the extruded rod 6 of any posture all be connected to the compressive plane 3b of sleeve 3.
According to the caulking gun 1 of present embodiment as constructed as above, possesses the transmit mode switching part 30 that can switch between the power released state shown in the power delivery status shown in Fig. 6 and Fig. 7 in the power transfer path between electro-motor 10 and extruded rod 6.Along with the opening operation of switch lever 5a, electro-motor 10 reverses slightly, and this transmit mode switching part 30 is mandatory thus switches to power released state.
Switch to power released state by transmit mode switching part 30, extruded rod 6 is cut off from the power transfer path of electro-motor 10 and becomes the state that can move freely.Become the state that can move freely by extruded rod 6, this extruded rod 6 retreats based on the residual pressure in sleeve 3, and the residual pressure thus in this sleeve 3 is released and prevents rear drippage.
Like this, slightly reversed by the opening operation electro-motor 10 of switch lever 5a and transmit mode switching part 30 switches to power released state, the extruded rod 6 becoming the state that can move freely thus is pressed based on the residual pressure of sleeve 3 and returns, thus the residual pressure in this sleeve 3 is released.Therefore, gap is not produced between the compressive plane 3b and the pressing plate 6a of extruded rod 6 of sleeve 3, so excessively returning when not producing being reversed by electro-motor thus making the mandatory retrogressing of extruded rod as in the past, therefore do not produce the time lag suitable with existing gap length when next time extrudes.
In addition, as shown in Figure 7, upstream side transferring elements 31 is interfered engaging recessed part 34b relative to the relative rotation angle along reverse directions of pin support 34 by engaging protuberance 31b and is limited in certain angle.Therefore, do not produced the state that sandwiches of the power transmission pin 33 ~ 33 in transmit mode switching part 30 by the reversion of electro-motor 10, thus upstream side transferring elements 31 and downstream transferring elements 32 can not integrations in reverse directions.Therefore, the rotary power in the reverse directions of electro-motor 10 is not passed to downstream transferring elements 32, so after transmit mode switching part 30 switches to power transmission released state, electro-motor 10 dallies in reverse directions.
Thus, have nothing to do with the reversing time of electro-motor 10, extruded rod 6 can not retreat more than the distance needed for residual pressure of releasing sleeve 3 (existing excessively return), and the pressing plate 6a maintaining extruded rod 6 is connected to the state of the compressive plane 3b of sleeve 3, so do not produce the time lag suitable with existing gap length when the extruding work of next time.
In addition, embodiment according to citing, be configured with magnet 41 in the side of the downstream transferring elements 32 being provided integrally with the driven wheel 40 engaged with the tooth-strip part 6c of extruded rod 6, thus give certain rotational resistance to the rotation of this downstream transferring elements 32.Therefore, even if electro-motor 10 stopping transmission switching part 30 switches to power released state and extruded rod 6 becomes the state that can move freely, the state of based on the certain rotational resistance given by magnet 41 pairs of downstream transferring elements 32, extruded rod 6 being given indirectly to suitable moving resistance also can be become.Based on this moving resistance, even if extruded rod 6 also can not decline, even and if when also can not retreating based on its inertia extruded rod 6 when this caulking gun 1 extraneous vibration etc. based on its deadweight when such as being kept upward by caulking gun 1.Therefore, even if under this caulking gun 1 is in halted state (power released state), also can be maintained the state making the pressing plate 6a of extruded rod 6 reliably be connected to the compressive plane 3b of sleeve 3, reliably can eliminate time lag when starting next time thus further.
And then, owing to being configured to directly not give moving resistance to extruded rod 6, and give by the parts that rotate moving freely based on it structure that rotational resistance indirectly gives extruded rod 6 suitable moving resistance, so suitable moving resistance can be given with less rotational resistance to extruded rod 6 compared with the structure being configured to directly give moving resistance to extruded rod 6.Therefore, simple and easy and compact parts can be used as rotational resistance member of imparting, the densification of this caulking gun 1 can be realized thus.
In addition, as long as be configured to the side of parts magnet 41 being configured at rotation as rotational resistance member of imparting, change therefore, it is possible to easily carry out it.Therefore, easily suitable moving resistance can be given to extruded rod 6 by being replaced by the different rotational resistance member of imparting of given resistance.
And then, be not configured to give moving resistance from laterally pressing force application part to extruded rod 6, and be configured to give rotational resistance to the parts of the rotation different from extruded rod 6, therefore can not expand rocking of the transverse direction of extruded rod 6, and then the durability of this caulking gun 1 can be improved.
Various change can be applied to embodiment described above.Such as, for the position of rotational resistance member of imparting of magnet 41 for exemplifying, the surrounding that is in downstream transferring elements 32 can be changed into and around other position of axis J.
In addition, though citing shows the structure of the downstream transferring elements 32 being provided integrally with driven wheel 40 being given to rotational resistance, but also can be configured to the structure of driven wheel 40 directly being given to rotational resistance, as long as the parts (rotation in downstream) being configured to rotate being moved by extruded rod 6 under other power released state give the structure of rotational resistance.
And then the magnet 41 as rotational resistance member of imparting can be configured to be not limited to as illustrated in citing close to the side face of downstream transferring elements 32 but close to side to give rotational resistance.
In addition, magnet 41 is shown as the citing of rotational resistance member of imparting, but can be configured to replace this magnet 41 and make rubber ring contact throughout complete cycle give rotational resistance with the members slides rotated, in addition, also can be configured to make the elastic body such as sheet rubber, spring or cloth, felt material contacts with side face or side slip and give rotational resistance by its frictional resistance.
Claims (3)
1. a caulking gun, this caulking gun is electrodynamic type caulking gun, with electro-motor be drive source extruded rod is pressed on sleeve installation portion install the sleeve that gap filler is housed discharge to make described gap filler from described sleeve,
The feature of described caulking gun is,
Described caulking gun possesses transmit mode switching part, in the way of the power transfer path of this transmit mode switching part between described electro-motor with described extruded rod can this power transfer path is connected by the power transmission of described electro-motor to the power delivery status of described extruded rod and this power transfer path is cut off and allows described extruded rod independent relative to the power of described electro-motor and switch between power released state based on the integrally movement of the residual stress in described sleeve and described sleeve
This transmit mode switching part possesses rotational resistance member of imparting, and the rotary part that this rotational resistance member of imparting rotates the movement along with described extruded rod under described power released state gives rotational resistance to limit rotating freely of this rotary part.
2. caulking gun according to claim 1, is characterized in that,
Described transmit mode switching part possesses following structure: power transmission pin is located at be arranged at the smooth transmission diverter surface that the outer peripheral face of the upstream side transferring elements of the upstream side of power transfer path is arranged, and between the power transmission face of the circle arranged at the inner peripheral surface of the downstream transferring elements being arranged at downstream, and along direction of rotation relative displacement the interval between described power transmission face and described transmission diverter surface changed relative to described downstream transferring elements by described upstream side transferring elements, and described power transmission pin is being clamped into the power delivery status transmitting power between this two sides, and switch between the power released state removed this to sandwich state and power transfer path is cut off, be configured to utilize described rotational resistance member of imparting to give rotational resistance to the described downstream transferring elements as described rotary part.
3. caulking gun according to claim 1 and 2, is characterized in that,
Described rotational resistance member of imparting adopts magnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-142856 | 2012-06-26 | ||
| JP2012142856A JP5996296B2 (en) | 2012-06-26 | 2012-06-26 | Caulking gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103510691A CN103510691A (en) | 2014-01-15 |
| CN103510691B true CN103510691B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310252870.3A Active CN103510691B (en) | 2012-06-26 | 2013-06-24 | Caulking gun |
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| JP (1) | JP5996296B2 (en) |
| CN (1) | CN103510691B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491919A (en) * | 1968-02-15 | 1970-01-27 | Olin Mathieson | Metering pump |
| US4669636A (en) * | 1985-03-28 | 1987-06-02 | Matsushita Electric Works, Ltd. | Dispensing gun |
| US5480102A (en) * | 1990-08-06 | 1996-01-02 | Shimano Inc. | Baitcasting reel |
| CN201865317U (en) * | 2010-10-27 | 2011-06-15 | 邹必应 | Gap filling machine for exterior wall tiles |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132564A (en) * | 1985-12-04 | 1987-06-15 | Sanyo Kogyo Kk | Viscous material dispenser |
| JP2550193Y2 (en) * | 1990-08-06 | 1997-10-08 | 株式会社シマノ | Double bearing reel |
| JP2001241472A (en) * | 2000-02-25 | 2001-09-07 | Ntn Corp | Axle device |
| JP2001252602A (en) * | 2000-03-09 | 2001-09-18 | Ire:Kk | Power tool |
| US20020005325A1 (en) * | 2000-06-30 | 2002-01-17 | Shigeyuki Yamada | One-way clutches |
| JP2008045601A (en) * | 2006-08-11 | 2008-02-28 | Hitachi Ltd | Power transmission device |
| US20100006605A1 (en) * | 2008-07-09 | 2010-01-14 | Kent Bridge Enterprise Co., Ltd. | Electric caulking gun |
-
2012
- 2012-06-26 JP JP2012142856A patent/JP5996296B2/en active Active
-
2013
- 2013-06-24 CN CN201310252870.3A patent/CN103510691B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491919A (en) * | 1968-02-15 | 1970-01-27 | Olin Mathieson | Metering pump |
| US4669636A (en) * | 1985-03-28 | 1987-06-02 | Matsushita Electric Works, Ltd. | Dispensing gun |
| US5480102A (en) * | 1990-08-06 | 1996-01-02 | Shimano Inc. | Baitcasting reel |
| CN201865317U (en) * | 2010-10-27 | 2011-06-15 | 邹必应 | Gap filling machine for exterior wall tiles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014004546A (en) | 2014-01-16 |
| JP5996296B2 (en) | 2016-09-21 |
| CN103510691A (en) | 2014-01-15 |
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