CN201205613Y

CN201205613Y - Operation chair for cutting pipe fitting

Info

Publication number: CN201205613Y
Application number: CNU2007201774950U
Authority: CN
Inventors: 奥拉·伯格; 伯恩特·埃纳桑
Original assignee: Lindab AB
Current assignee: Lindab AB
Priority date: 2006-12-19
Filing date: 2007-12-18
Publication date: 2009-03-11
Anticipated expiration: 2017-12-18
Also published as: SE0602752L; SE531474C2

Abstract

The utility model relates to a work chair used to cut pipes, which comprises a supporting structure (2), a retainer component (12) and a tool component (5); wherein, the supporting structure (2) is used to support a pipe; the retainer component (12) is used to retain the pipe; and the tool component (5) is used to cut the pipe (34). The tool component (5) comprises a cutting tool (8), which is restricted to move only within a plane that is longitudinally vertical to the pipe (34); the retainer component (12) comprises abutting parts (16, 19) for the ends of the pipe (34); and the abutting parts, which can be fixed in order to fix the ends of the pipe (34) at positions relative to the cutting tool, can move relative to the cutting tool (8) in order to set a length required by the pipe (34) to be cut.

Description

The work chair that is used for cutting pipes

Technical field

The utility model is established and is related to the work chair that is used for cutting pipes, and it comprises the supporting structure that is used for supporting tubular member, is used to keep the retainer assembly of pipe fitting and the tool assembly that is used for cutting pipes.The application also relates to the work chair that is used for cutting pipes, and described work chair has the cutting tool that is arranged on the articulated jib.

Background technology

When the assembling ventilating system, pipe fitting need be cut into required length usually.This cutting normally is placed into pipe fitting to be carried out on the floor.Setter utilizes carpenter's chi to measure Len req on pipe fitting and does some marks along the periphery of pipe fitting with pencil.Then, setter utilizes cutter to hammer into shape in pipe fitting a mark and makes the hole.Also can utilize rig to make the hole, but when the described pipe fitting of assembling, rig also is used as screw driver usually, therefore, just needing is the spiral cutter head with bit change-over continually, and changes and go back, and perhaps needs to have two different rigs.Hand-held power drive disc type is cut in the described hole of insertion,, come cutting pipes by free-hand cutting assisting down of pencil mark.The defective of this known cutting mode is: final otch is seldom straight and perpendicular with the longitudinal axis of pipe fitting.So just be difficult to pipe fitting is interconnected, when particularly needing straight and vertical especially otch using special-purpose connected system.Another defective is that work posture is uncomfortable, because the ventilating system setter every workday will repeatedly cut, therefore, this is a serious problem.In addition, when making mark, be difficult to grip carpenter's chi.

The routine work chair used by for example carpenter also can be used as working face when cutting is used for the pipe fitting of ventilating system.Can produce more comfortable posture like this, but that the defective of this work chair is them is very heavy, therefore is difficult to move around the workplace.Especially, be difficult to this work chair is moved past the doorway.The defective of the defective that is associated with free-hand cutting when cutting on the floor is identical.

Therefore, at present with proposed to be used to cut pipe or pipe fitting, especially for the special-purpose work chair of the pipe fitting of ventiduct system.An example of this special-purpose work chair has been described in WO 99/29473.This work chair has the angle grinding machine, but described angle grinding machine has the rotation cutting dish that is arranged on the pivotal arm.Because described angle grinding machine is installed on the work chair, so just is easier to produce straight otch.But, still need to use independently carpenter's chi to measure by the Len req of cutting pipe fitting.In case on pipe fitting, identify Len req, just need grip pipe fitting in position with the suitable length of cutting with hand.In addition, if rotate pipe fitting in the cutting process, pipe fitting just has along the trend of work chair dislocation.Lock seam tube is being added man-hour, and this situation is easy to generate especially, and this is to be held on the work chair roller because of lock seam.In addition, under multiple situation, the angle grinding machine is not a kind of attracting selection for the cutting of ventilating system pipe fitting.This situation is obvious especially when carrying out in-house operation, often need carry out in-house operation when the assembling ventiduct system.Angle grinding machine noise is very big, therefore has the risk of damage hearing, and needs hearing protectors.In addition, utilize the angle grinding machine to carry out the cutting meeting and produce spark, can produce the danger of catching fire like this, because its operation principle, the angle grinding machine exists in the risk of the inside generation burr of cutting pipe.Therefore, in the inside deburring that will need before the pipe fitting interconnection with pipe fitting.In addition, burr also can damage sealing ring etc.Unfortunately, during as a kind of selection of cutting tool, it is not very flexible at this known work chair.

Summary of the invention

The purpose of this invention is to provide a kind of work chair that can solve or alleviate above-mentioned defective at least.

A specific purpose of the present invention provides a kind of work chair, and this work chair is easy to realize straight otch when cutting pipes.

Another object of the present invention provides a kind of work chair, and this work chair provides the work posture of human and environment harmony.

A further object of the present invention provides a kind of work chair, and it can not produce burr and is not producing the situation incision tubulation spare of excessive noise or dangerous spark in pipe fitting.

These purposes are that given by following technical solution work chair is realized,, are used for a kind of work chair of cutting pipes that is, and it comprises: the supporting structure that is used for supporting tubular member; Be used to keep the retainer assembly of pipe fitting; Be used to cut the tool assembly of described pipe fitting, wherein: described tool assembly comprises cutting tool, described cutting tool only be defined as with the vertical perpendicular plane of pipe fitting in move, described retainer assembly comprises the butting section of described pipe fitting end, the Len req that is cut pipe fitting with setting can be moved with respect to cutting tool in described butting section, and described butting section can be fixed with the position with respect to cutting tool, the end of fixed fitting.Other preferred implementations of this work chair also are provided in the utility model.

Described these purposes also are that a kind of work chair that is used for the cutting pipe fitting defined in is by following technical solution realized, promptly, a kind of work chair that is used for cutting pipes, its utilization has the work chair that is arranged in the cutting tool on second articulated jib, and wherein: the butting section that is arranged on the work chair can be moved so that the Len req of pipe fitting to be cut to be set with respect to cutting tool.A kind of preferred implementation of this work chair also is provided in the utility model.

Work chair of the present invention includes cutting tool and retainer assembly.Described cutting tool only be defined as with the vertical perpendicular plane of pipe fitting in move.Described retainer assembly comprises the butting section of described pipe fitting end, and the Len req that is cut pipe fitting with setting can be moved with respect to cutting tool in described butting section, and described butting section can be fixed with the position with respect to cutting tool, the end of fixed fitting.This work chair can be guaranteed straight cut, and this otch and pipe fitting are perpendicular and be in the correct position.

In one embodiment, described work chair comprises first articulated jib of carrying cutter edge and second articulated jib of carrying cutting tool.Described articulated jib can guarantee that cutter edge and cutting tool only changing places mobile with the vertical perpendicular flat content of pipe fitting.Described cutter edge can be produced and be used for the obvious hole that cutting tool inserts.

Described cutting tool is preferably cutting implement.The actual utilization of shearing tool can avoid producing burr in pipe fitting.In addition, cutting implement does not produce dangerous spark.

Described cutting implement is preferably a pair of power drive disc type and cuts, and this is a kind of efficient tool of powerful cutting pipes, and can not produce spark and excessive noise.

In one embodiment, described second articulated jib has three pivot positions.This is easy to adapt to the pipe fitting of different size especially and handles cutting implement when cutting.

Described work chair can comprise that scalable engineer's scale is to be provided with and to determine the length of pipe fitting to be cut.Eliminated thus the needs of carpenter's chi independently, described carpenter's chi is difficult to be held after mark lengths.So just can guarantee on correct length, to produce straight cut.

Described work chair preferably can be included in two scalable engineer's scales at work chair opposed end place to be provided with and to determine the length of pipe fitting to be cut.Can be easy to measure the different cutting length of pipe fitting in this way, and guarantee that otch is straight and be in the correct position.

In one embodiment of the invention, described retainer assembly comprises that being arranged in first on first carrier overlaps roller.The fixed bearing to pipe fitting is guaranteed in this configuration, and is easy to make its rotation when cutting pipes.

Described first carrier preferably is fixed in its position with respect to described tool assembly, just is easy to thus guarantee to cut in correct position.Described first carrier guarantees that also pipe fitting is bearing on the both sides of cutting part securely.

Described retainer assembly also can comprise and be arranged in second on second removable carrier cover roller, so that the butting section of pipe fitting end to be provided, thereby can keep pipe fitting more firmly.

The described second carrier preferred arrangements is at an end place of work chair, preferred arrangements the 3rd cover roller on the 3rd removable carrier at the place, opposite end of described work chair, the end that described the 3rd cover roller arrangements is held pipe fitting.The pipe fitting that in this way can effective and efficient manner cuts different initial lengths.

Described retainer assembly also can comprise the quadruplet roller that is arranged on the 4th removable carrier, thereby produces extra, an adjustable area supported that is used for pipe fitting.

In one embodiment of the invention, each overlaps roller and is made up of four rollers arranged in pairs that are used to hold the different size pipe fitting.Like this, can adapt to different pipe fitting sizes not needing to regulate under the situation of roller.

Described supporting structure can comprise can amount to leg, thereby makes work chair be easy to carry and load.

Described supporting structure preferably includes the wheel that is used for the transportation work chair.Be easy to thus move and carry described work chair around the workplace.

At the work chair that is used for cutting pipes of the present invention, the butting section that is arranged on the work chair can be moved so that the Len req of pipe fitting to be cut to be set with respect to cutting tool, described butting section can be fixed in the corresponding position of pipe fitting to be cut with Len req, can utilize cutting tool to cut described pipe fitting.Can utilize first articulated jib to limit cutting tool and make its only can with the vertical perpendicular plane of pipe fitting in move.Utilize this work chair can guarantee to obtain straight otch in the tram on pipe fitting.

Employed cutting tool is a cutting implement in the distortion of work chair of the present invention, described work chair also comprises the cutter edge, described cutter edge is used for going out to be used in the pipe fitting cutting hole of cutting implement before the described pipe fitting of cutting, described cutter edge is arranged on second articulated jib of work chair.The described hole of being produced by cutter is easy to cutting implement is inserted.In addition, the generation that produces burr and eliminated dangerous spark on pipe fitting inside has been eliminated in the use of cutting implement.

Description of drawings

Below with reference to additional schematic diagram the present invention is described in more detail, has shown the example of currently preferred embodiments of the invention among the figure.

Figure 1 shows that perspective view according to work chair of the present invention.

Figure 2 shows that the side view of the tool assembly of work chair among Fig. 1.

Figure 3 shows that the part perspective view of the retainer assembly of work chair among Fig. 1.

Figure 4 shows that the perspective view of the cutter edge of work chair among Fig. 1.

Figure 5 shows that the perspective view of the work chair under pipe fitting place situation thereon.

The specific embodiment

Work chair 1 shown in Fig. 1 is designed to cut the used pipe fitting of ventiduct system especially, and particularly spiral curls up lock seam tube.Work chair 1 has four supporting structures 2 that can amount to leg 3 and a seat 4 forms.Tool assembly 5 is installed on supporting structure 2.But described tool assembly 5 comprises cutter edge 6 that is installed on the pivotal arm 7 and the power drive disc type that is installed on the articulated jib 9 and cuts 8.But the pivotal arm 7 that cutter edge 6 is installed on it has pivot position 10.Disc type is installed on it cuts 8 articulated jib 9 and have three

pivot position

11a, 11b and 11c, from accompanying drawing 2, can be more clearly visible.

Work chair 1 also has the retainer assembly 12 that is used to keep pipe fitting to be cut.Retainer assembly 12 comprises the many covers roller that is arranged in the carrier.Four rollers 13 of first cover are arranged in first carrier 14 adjacent with tool assembly 5.The position of first carrier 14 is fixing with respect to tool assembly 5.Four rollers 15 of second cover are arranged in second carrier 16, and described second carrier 16 is installed on first pars contractilis 17, and described first pars contractilis 17 can stretch out and extension seat 4 from an end of supporting structure 2.Four rollers 18 of the 3rd cover are arranged in the 3rd carrier that is installed on second pars contractilis, and described second pars contractilis can stretch out and extension seat 4 from the end opposite of supporting structure 2.Four rollers 21 of quadruplet are arranged in the 4th carrier 22 that is slidably mounted on the seat 4.Owing to four rollers are arranged, but the work chair firm support has the pipe fitting of different size on each carrier, and need not to carry out any adjusting for adapting to different pipe fitting sizes.The

roller

13,15,18,21 of each

carrier

14,16,19,22 can make pipe fitting 34 easily rotate in cutting process.

Work chair is furnished with two

survey scales

26,27, all has an engineer's scale to measure tubulation spare to be cut on each pars contractilis 17,20.Be furnished with cage knob 23 in the each end of work chair 1 relevant pars contractilis 17,20 is locked in the position (only having shown a cage knob 23 in the accompanying drawings) that needs.Cage knob 23 also can be used to pars contractilis 17,20 is locked in complete advanced position to be used for transportation work chair 1.

For ease of carrying in the working site, work chair has two wheels 28 that are installed on supporting structure 2 one ends.

For making operator's safety, cutter edge 6 is furnished with the safety device of two spring leaf 29 forms, and described safety device does not hide it when cutter edge 6 does not use.

The pipe fitting that is used for ventiduct system is often carried with the length of 3m.When pipe fitting 34 is cut into the Len req that is installed in the ventiduct system of just assembling, pipe fitting 34 is placed on the work chair 1, and places (referring to accompanying drawing 5) on the

roller

13,15,18,21.

First pars contractilis 17 is pulled out work chair 1 show Len req to be cut, and first pars contractilis 17 is locked in this position by cage knob 23 until engineer's scale 26.One end of pipe fitting 34 is placed to against second carrier 16 in that side at work chair 1 one end places to form butt.In this way, pipe fitting 34 is firmly held in its position, thereby can guarantees to form straight otch in correct position.But pivotal arm 7 is rotated with the outside of cutter edge 6 against pipe fitting 34, and under the situation of spring leaf 29 deflections in pipe fitting 34 cutting portal.Then, but raise pivotal arm 7 once more so that cutter edge 6 is back to its initial position.After cutting is portalled in pipe fitting 34, disc type is cut 8 insert in the described hole, when pipe fitting 34 is slowly rotated, utilize disc type to cut 8 it is carried out cutting, thereby cut the pipe fitting 34 of Len req.Disc type is cut the thin strip metal sheet that 8 width that cut away pipe fitting 34 are about 5-10mm.Cutter edge 6 and disc type are cut 8 and are installed on the arm that is fixed on the seat 4, can guarantee to obtain straight cut like this, utilize free-hand cutting can not obtain described straight cut.7,9 permission cutter edge 6 of arm and disc type cut 8 with the perpendicular plane of pipe fitting 34 on move.Like this, disc type is cut 8 and can carefully be departed from required straight cut.In addition, the end of pipe fitting 34 guarantees that against the side of first carrier 14 or the side of second carrier 16 pipe fitting is fixed in the tram to obtain the Len req of pipe fitting to be cut.

Because articulated jib 9 has three pivot position 11a-c, disc type is cut 9 pipe fittings 34 that can be used to different size, and is rotating pipe fitting 34 when being run into lock seam, and disc type is cut 8 and can suitably be handled under situation about shearing.Work chair 1 with tool assembly 5 and retainer assembly 12 is specially adapted to the pipe fitting of diameter in the 80-315mm scope, and certainly, it can be designed to other sizes.

When cutting longer pipe fitting, utilize second engineer's scale 27 that is in work chair 1 end opposite place to measure.One end of pipe fitting suitably is placed in the 3rd carrier 19 and against the side of carrier 19.Can adjust the position of the 4th carrier 22 along seat 4 slips by making carrier 22.

Owing to cut 8 by disc type and cut away bonding jumper, therefore, second engineer's scale 27 need be adjusted to and make no matter

usage ratio chi

26,27 all can be measured the Len req with fixed fitting 34.

In accompanying drawing 4, show cutter edge 6 in greater detail.The front 32 of cutter edge 6 is straight, and cutter edge 6 disposes stopper section 33.So just can guarantee hole by the suitable shape of cutter edge 6 cuttings.The hole that is produced is the isosceles triangle shape, and sheet metal is by curved to form leg-of-mutton two equal sides down.The width of triangular base determined by stopper section 33, cuts 8 by disc type like this when shearing is finished whole following curved sheet metals cut.If leg-of-mutton base portion is too wide, disc type is cut 8 can not cut off whole following curved sheet metals, then causes otch untidy.Can insert the size of the amount in the cutter retainers 35 and it is adjusted according to cutter edge 6.This adjustment just can make the hole of made be applicable to that different disc types cuts and estimate the wearing and tearing of cutter edge 6.In addition, but can regulate pipe fitting 34 to pivotal arm 7 position in height to adapt to different size.This height is regulated and is preferably realized by the locking mechanism that only needs a hand to operate.

Work chair 1 also suitably disposes special-purpose cutting clamp (not shown), and described cutting clamp is used to excise the sharp-pointed position that was produced when cutting lock seam with non-perpendicular angle.These special-purpose pliers were cut described lock seam, but did not cut the lower floor of sheet metal.Described cutting clamp can be connected by the chain of for example certain-length near the tool assembly 5 the work chair 1, or is placed in the bag or box that is attached on the work chair 1.

Disc type is cut 8 and can be easy to pull down from articulated jib 9, freely to carry out the cutting in the hole in the pipe fitting 34 for example, to form collar saddle portion etc.

When transportation work chair 1, utilize the pivot position 30 that links to each other with seat 4 to amount to leg 3.Leg 3 is locked in amounts to the position, makes them can not bent out by accident in course of conveying.Therefore, when using work chair 1, leg 3 is locked in it and does not amount to the position.Utilize wheel 28, then can come easily to move work chair 1 after amounting to, extend in the car of it can being packed into by a people.Take turns 28 little of when using or depositing work chair 1, can not making troubles, but also should be greatly to crossing threshold.

Be adjacent to roller 13 suitable long for example 20cm with tool assembly 5.Then eliminated pipe fitting 34 in this way and produced the tendency that departs from along the length of seat 4.

Roller

15,18 preferred short for example 10cm on the pars contractilis 17,20 can make the minimum length of the pipe fitting of cutting minimize like this.

One skilled in the art will recognize that: can carry out numerous variations to the foregoing description without departing from the present invention, described change is limited in the additional claim scope.

For example, can utilize rig to replace cutter edge 6 portals to make in pipe fitting 34 before cutting.

For example plate is cut saw, annular saw, scroll saw or angle grinding machine with one or two sheet replaces disc type and cut 8 can to utilize another kind of cutting tool.The preferred instrument that does not produce burr in the inside of pipe fitting that adopts, for office operation, preferred employing does not produce the instrument of dangerous spark.

The leg telescopically of work chair extends to adapt to the setter of different heights.

The carrying disc type is cut 8 articulated jib 9 can have pivot position more than three, and described articulated jib 9 can be the chain that does not for example allow to carry out lateral movement, described lateral movement is that disc type is cut along the moving of the length of seat 4, perhaps except that with the perpendicular lip-deep rotation of the length of pipe fitting 34 rotation.

Carrier

14,16,19,22 can not have four

rollers

13,15,18,21, and can all have two rollers.In this case,

carrier

14,16,19,21 all has two grooving (not shown)s of the axle 24 that is used to hold roller 21 on its each side.Preferably situation is, has three grooves in every grooving, and these grooves link to each other by the track (not shown).

Roller

13,15,18,21 can be placed on one of corresponding three relevant positions of described three grooves in.For having larger sized pipe fitting 34, the

roller

13,15,18,21 in each

carrier

14,16,19,22 is moved apart as far as possible far, and, make

roller

13,15,18,21 close as far as possible for undersized pipe fitting 34.The 3rd is the pipe fitting that medial launder is suitable for intermediate sizes.Owing to utilize track that described groove is linked together, therefore can easily roller be moved to another position from a position.Described track is outside opening preferably, can guarantee like this that

roller

13,15,18,21 is firmly remained in the

carrier

14,16,19,22 and accidental not falling in the course of conveying of work chair 1 for example.The layout of adjustable roller has reduced the number of the parts of work chair, thereby has reduced manufacturing cost and weight of equipment.Except that the pipe fitting that is used for ventiduct system, work chair 1 also can be used to cut other pipe fittings.Cutting tool preferably is selected to the type that is suitable for the pipe fitting that will be cut.

Claims

1. be used for a kind of work chair of cutting pipes (34), it comprises: the supporting structure (2) that is used for supporting tubular member (34); Be used to keep the retainer assembly (12) of pipe fitting (34); Be used to cut the tool assembly (5) of described pipe fitting (34), it is characterized in that: described tool assembly (5) comprises cutting tool (8), described cutting tool (8) only be defined as with the vertical perpendicular plane of pipe fitting (34) in move, described retainer assembly (12) comprises the butting section (16 of described pipe fitting (34) end, 19), the Len req that is cut pipe fitting (34) with setting can be moved with respect to cutting tool (8) in described butting section, and described butting section can be fixed with the position with respect to cutting tool (8), the end of fixed fitting (34).

2. work chair as claimed in claim 1 is characterized in that: described tool assembly (5) comprises first articulated jib (7) of carrying cutter edge (6) and second articulated jib (9) of carrying cutting tool (8).

3. work chair as claimed in claim 1 or 2 is characterized in that: described cutting tool is cutting implement (8).

4. work chair as claimed in claim 3 is characterized in that: described cutting implement is that a pair of power drive disc type is cut (8).

5. work chair as claimed in claim 2 is characterized in that: described second articulated jib (9) has three pivot positions (11a-c).

6. work chair as claimed in claim 1 or 2 comprises that also the first scalable engineer's scale (26) is to be provided with and to fix the length of pipe fitting to be cut (34).

7. work chair as claimed in claim 1 or 2, the first flexible engineer's scale (26) and second that is included in work chair (1) opposed end place stretches engineer's scale (27) to be provided with and to fix the length of pipe fitting to be cut (34).

8. work chair as claimed in claim 1 is characterized in that: described retainer assembly (12) comprises that being arranged in first on first carrier (14) overlaps roller (13).

9. work chair as claimed in claim 8 is characterized in that: described first carrier (14) is fixed in its position with respect to described tool assembly (5).

10. work chair as claimed in claim 8 is characterized in that: described retainer assembly (12) can comprise that also being arranged in second on the second removable carrier (16) overlaps roller (15), so that the butting section of pipe fitting (34) end to be provided.

11. work chair as claimed in claim 10, it is characterized in that: described second carrier (16) is arranged in an end place of work chair (1), wherein, the 3rd removable carrier of locating in the opposite end of described work chair (1) (19) is gone up and is arranged the 3rd cover roller (18), and described the 3rd cover roller (18) provides the butting section of pipe fitting (34) end.

12. the described work chair of one of claim 8-11 as described above, it is characterized in that: described retainer assembly (12) also comprises the quadruplet roller (21) that is arranged on the 4th removable carrier (22).

13. work chair as claimed in claim 12 is characterized in that: each overlaps roller by four rollers arranged in pairs (13,15,18, the 21) composition that is used to hold different size pipe fitting (34).

14. work chair as claimed in claim 1 or 2 is characterized in that: described supporting structure (2) comprises can amount to leg (3).

15. work chair as claimed in claim 1 or 2 is characterized in that: described supporting structure (2) comprises the wheel (28) that is used for transportation work chair (1).

16. be used for a kind of work chair of cutting pipes (34), its utilization has the work chair (1) that is arranged in the cutting tool on second articulated jib (9), it is characterized in that: be arranged in the butting section (16 on the work chair (1), 19) can move so that the Len req of pipe fitting to be cut (34) to be set with respect to cutting tool (8)

Wherein, described butting section (16,19) can be fixed in the corresponding position of pipe fitting to be cut (34) with Len req, and

Can utilize cutting tool (8) to cut described pipe fitting (34), can utilize second articulated jib (9) to limit cutting tool (8) and make its only can with the vertical perpendicular plane of pipe fitting (34) in move.

17. work chair as claimed in claim 16, it is characterized in that: described cutting tool is cutting implement (8), described work chair also comprises cutter edge (6), described cutter edge is used for going out to be used for the hole of cutting implement (8) before in pipe fitting (34) cutting at the described pipe fitting of cutting (34), and described cutter edge (6) is arranged on first articulated jib (10) of work chair (1).