CN102001087A

CN102001087A - Adapter

Info

Publication number: CN102001087A
Application number: CN2009101689754A
Authority: CN
Inventors: 龙强; 王勇; 霍立祥; 吴海全
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2009-09-02
Filing date: 2009-09-02
Publication date: 2011-04-06
Anticipated expiration: 2029-09-02
Also published as: CN102001087B

Abstract

The invention relates to an adapter which is applicable to the connection of an accessory working head and an output shaft, wherein the accessory working head is provided with installing holes in a regular dodecagon, and twelve bulges uniformly distributed along the peripheral direction extend on the output shaft along the axial direction. The adapter comprises a cylindrical main body (101) with two end faces (103 and 104) and a central positioning hole (102) penetrating through the main body (101), and a boss (105) arranged coaxially with the central positioning hole (102) extends on one end face (104) of the adapter along the axial direction. The boss (105) is matched and connected with the mounting hole of the accessory working head, a plurality of lugs (106) radially and uniformly extend on the outer circumferential face of the main body (101) of the adapter along the radial direction, each lug (106) and another adjacent lug (106) form one group, an accommodating space (107) is formed between each group of lugs (106), and at least two adjacent bulges of the output shaft are accommodated in the accommodating space (107).

Description

Adapter

Technical field

The present invention relates to a kind of adapter, especially a kind of adapter annex of swing class power tool of hand-held is used for the annex working head is mounted on output shaft.

Background technology

Multi Role Aircraft is the swing class power tool of the common hand-held of industry, and its operation principle is that the axial line that output shaft centers on self is done oscillating motion.Therefore, when the user had been equipped with different annex working heads on the output shaft after, common annex working head comprised straight blade, saw blade, triangle frosted dish and shovel type scraper etc., can realize multiple different operating function, as sawing, cut, grind, scrape etc., to adapt to different work requirements.

Comparatively common in the market Multi Role Aircraft has two kinds, and their operation principle is identical haply, and still, their annex but has unique design separately, thereby makes their annex can not be general.Like this,, promptly use first kind of Multi Role Aircraft can only use and first kind of annex working head that Multi Role Aircraft is supporting, use second kind of Multi Role Aircraft then can only use and second kind of annex working head that Multi Role Aircraft is supporting with regard to for user's use brings some inconvenience.

As shown in Figure 1, be the annex working head of first kind of Multi Role Aircraft, specify 1 to be its numbering here.This annex working head 1 generally comprises operate portions 2 and installation portion 3, and wherein operate portions 2 can be designed to different patterns according to the difference of environment for use, as straight blade, saw blade, frosted dish or the like, is that example describes here with the straight blade.3 of installation portions are designed to the dodecagon installing hole in the mode of boring a hole usually.

As shown in Figure 2, be the annex working head of second kind of Multi Role Aircraft, specify 10 to be its numbering here.This annex working head 10 is same comprises operate portions 20 and installation portion 30, wherein operate portions 20 also can be designed to different patterns according to the difference of environment for use, and installation portion 30 different with the annex working head shown in Fig. 1 be the design conglobate center positioning hole 31, and be positioned at the periphery of center positioning hole 31, be provided with 12 quadrangle through holes 32 uniformly, described through hole 32 radially distributes and centers on center positioning hole 31.Corresponding these through holes 32, on the output shaft 40 of Multi Role Aircraft, its free end extends 12 projectioies 42 along axial direction, and these projectioies 42 are same is that center hole 41 on the output shaft 40 is arranged to radial.

Like this, when annex working head 10 is installed on the output shaft 40, being inserted in the through hole 32 of these protruding 42 correspondences, then re-use screw 50 and pass the center positioning hole 31 of annex working head 10 and the center hole 41 of output shaft 40 successively, be fixed on the output shaft 40 thereby annex working head 10 can be tightened.

According to the needs of using, this annex working head 10 can also carry out the angle setting with respect to output shaft 40.At this moment, the user can back out screw 50, projection 42 is taken out from the through hole 32 of correspondence, then rotate to an angle (as 30 the degree or 90 the degree) after insert once more in the different through hole 32, and tighten fixing once more by screw 50, just can make annex working head 10 produce certain angular transformation, help the user and use according to environment with respect to output shaft 40.

As noted earlier, owing to the difference of annex working head because of installation portion only can be applied on the corresponding Multi Role Aircraft, this just uses for the versatility of Multi Role Aircraft and annex working head thereof and has caused inconvenience.

Therefore, be necessary to develop a adapter to address the above problem in fact.

Summary of the invention

The object of the present invention is to provide a kind of adapter,, have good versatility as the annex of Multi Role Aircraft.

For achieving the above object, the invention provides a kind of adapter, be applicable to and connect a kind of annex working head and a kind of output shaft, described annex working head has the dodecagon of being installing hole, in axial direction be extended with 12 along the circumferential direction equally distributed projectioies on the described output shaft, described adapter comprises: the columniform main body with two end faces, the center positioning hole that runs through main body, be extended with boss with the coaxial setting of center positioning hole along axial direction on the end face of described adapter, the installing hole of described boss and annex working head connects, on the outer circumference surface of the main body of described adapter, be extended with some projections uniformly along radial direction is radial, each projection constitutes one group with another projection of vicinity, form a receiving space between each group projection, at least two adjacent projectioies of described output shaft are housed in the described receiving space.

Preferably:

Described projection has two limits, and the extended line on these two limits intersects the center that converges in center positioning hole.

The number of described projection is two, three, four or six.

Described boss is positive six side's boss or dodecagon boss or round boss.

Adapter among the present invention by the different linkage interfaces that provide, can be implemented in the annex working head that connects the installation portion with dodecagon installing hole on the output shaft of aforesaid Multi Role Aircraft, helps to improve the versatility of Multi Role Aircraft and annex working head.

Description of drawings

Fig. 1 is the schematic diagram of one of common annex working head of Multi Role Aircraft, and its installation portion is the dodecagon installing hole.

Fig. 2 is the schematic diagram of the annex working head of another Multi Role Aircraft and use thereof, several quadrangle through holes that the installation portion of this annex working head comprises center positioning hole and is centered around the center positioning hole periphery.

Fig. 3 a is the schematic diagram (first face) of adapter disclosed in this invention.

Fig. 3 b is the schematic diagram (second face) of this adapter.

Fig. 3 c is the side sectional view of this adapter.

Fig. 4 is the annexation schematic diagram of this adapter.

Fig. 5 is connected side sectional view on the Multi Role Aircraft for this adapter.

Fig. 6 a is the state reference map of this adapter when adjusting angle, at this moment, is 90 degree angles between annex (solid line) and the annex (dotted line).

Fig. 6 b is the state reference map of this adapter when adjusting angle, at this moment, is 30 degree angles between annex (solid line) and the annex (dotted line).

Related elements reference numeral in the diagram is as follows:

1, annex 2, operate portions 3, installation portion

10, annex 20, operate portions 30, installation portion

31, center positioning hole 32, through hole 40, output shaft

41, center hole 42, projection 50, screw

100, adapter 101, main body 102, center positioning hole

103, end face 104, end face 105, boss

106, projection 107, receiving space 108, limit

109, limit

The specific embodiment

The present invention is described in further detail below in conjunction with drawings and the specific embodiments.

See also Fig. 1 to Fig. 2, as described in the background art, the annex working head of two kinds of common Multi Role Aircrafts, can only be applied on the Multi Role Aircraft that is complementary because of the difference of installation portion, promptly first kind is adopted the annex working head of dodecagon installing hole can't be applied on second kind of Multi Role Aircraft, same, second kind is adopted the annex working head of some through holes that radially distribute also can't be applied on first kind of Multi Role Aircraft, so just uses for the versatility of annex and has brought inconvenience.

See also Fig. 3, a kind of adapter 100 that is applied on the Multi Role Aircraft, dismountable being connected on aforesaid second kind of Multi Role Aircraft, the free end that is output shaft is extended with some projectioies (being specially 12) along axial direction, and these projectioies are radial arrangement around the axial line of output shaft, can also install on the adapter 100 simultaneously to connect first kind of annex working head that adopts the dodecagon installing hole.

Adapter 100 comprises roughly cylindrical main body 101, runs through center positioning hole 102 and two

end faces

103 and 104 of main body 101.Wherein, center positioning hole 102 is used for passing for screw 50, and end face 103 is used to connect the output shaft 40 of Multi Role Aircraft, is referred to as first here, and end face 104 is used for coupling 1, is referred to as second here.Being to extend the positive six side's boss 105 with center positioning hole 102 concentrics along axial direction on the end face 104 on second, be used to connect the dodecagon installing hole of annex 1.Certainly, the boss 105 here can also adopt other shapes, as dodecagon or circular and other shapes that can connect with the dodecagon installing hole of annex 1.

On the outer circumference surface of the main body 101 of adapter 100, extend some projections 106 uniformly along radial direction is radial, such projection is six in the preferred embodiments of the present invention.In these projections 106 each and another contiguous projection 106 can constitute one group, and form a receiving space 107 between each group projection 106, are used to connect the output shaft 40 free-ended protruding 42 of Multi Role Aircraft.

In addition, each projection 106 has two limits 108,109, and the extended line on two limits 108,109 intersects and converge at the center position of center positioning hole 102.Certainly, such projection 106 can also be two, three, four, can reach the effect same with six projections 106, and difference only is that 107 of receiving spaces that form between per two projections 106 can hold the quantity of the projection 42 on the output shaft 40.

Adapter 100 in use, the end face 103 i.e. output shaft 40 of first corresponding Multi Role Aircraft inserts, at this moment, output shaft 40 free-ended 12 projectioies 42 are one group with per two, are housed in the receiving space 107 that per two projections 106 of adapter 100 are constituted.As shown in Figure 4, in each receiving space 107, all contain two projectioies 42, these projectioies 42 all with two limits 108,109 of projection 106 in one closely contact, thereby output shaft 40 is in swing process, can be by these projection 42 and the connecting of projection 106, and transfer a torque on the adapter 100.

In addition, end face 104 is second and is provided with positive six side's boss 105, is used to connect the dodecagon installing hole of annex 1.After annex 1 corresponding positive six side's boss 105 are installed on the adapter 100, relend and help screw 50 to pass the center positioning hole 102 of annex 1, adapter 100, the center hole 41 of output shaft 40 successively, thus can tighten and fixing fitting 1 on the output shaft 40 of Multi Role Aircraft.

By such mode, just can on the output shaft 40 of Multi Role Aircraft, use installation portion 3 and be the annex 1 of dodecagon installing hole with several circumferential protrusion 42, improved the incompatible problem of annex working head.

Adapter 100 disclosed in this invention can carry out angular adjustment equally, and the mode of angular adjustment has two kinds, shown in Fig. 6 a, a kind of is that annex 1 takes off from the boss 105 on the end face 103 of adapter 100, rotary attachment 1 certain angle as inserting once more on the boss 105 behind 90 degree, and is tightened fixing with screw 50, can carry out angular adjustment, be user-friendly to.Shown in Fig. 6 b, another kind of mode is that adapter 100 is taken off from output shaft 40, adapter 100 is rotated to an angle, as once more adapter 100 being inserted into behind 30 degree in the projection 42 on the output shaft 40, and tighten fixingly with screw 50, also can carry out angular adjustment.At this moment, each receiving space 107 protrusions 42 that is housed in adapter 100 have all been changed new position, but its effect of transmitting moment of torsion is the same.

Claims

1. adapter, be applicable to and connect a kind of annex working head and a kind of output shaft, described annex working head has the dodecagon of being installing hole, in axial direction be extended with 12 along the circumferential direction equally distributed projectioies on the described output shaft, described adapter comprises: have two end faces (103,104) columniform main body (101), the center positioning hole (102) that runs through main body (101), an end face (104) of described adapter is gone up along axial direction and is extended with boss (105) with the coaxial setting of center positioning hole (102), described boss (105) connects with the installing hole of annex working head, it is characterized in that: on the outer circumference surface of the main body (101) of described adapter, along the radial some projections (106) that are extended with uniformly of radial direction, each projection (106) constitutes one group with another projection (106) of vicinity, form a receiving space (107) between each group projection (106), at least two adjacent projectioies of described output shaft are housed in the described receiving space (107).

2. adapter as claimed in claim 1 is characterized in that: described projection (106) has two limits (108,109), and the extended line on these two limits (108,109) intersects the center that converges in center positioning hole (102).

3. adapter as claimed in claim 1 is characterized in that: the number of described projection (106) is two, three, four or six.

4. adapter as claimed in claim 1 is characterized in that: described boss (105) is in positive six side's boss or dodecagon boss or the round boss.