CN103787223A

CN103787223A - Extending structure of safety handle

Info

Publication number: CN103787223A
Application number: CN201210426233.9A
Authority: CN
Inventors: 葛振红; 许乃江; 刘名
Original assignee: Ford Global Technologies LLC
Current assignee: Ford Global Technologies LLC
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2014-05-14
Anticipated expiration: 2032-10-30
Also published as: CN103787223B

Abstract

The invention discloses a foldable handle. The foldable handle comprises a main body, an extension rod and a button, wherein the main body is provided with a first auricular member, a second auricular member and a lug, and the lug is provided with a first slot and is formed on the first auricular member; the extension rod is provided with a third auricular member which is connected to the lug pivotally, and a second slot is formed in the third auricular member; the button is provided with a bulge, the bulge is connected with the first slot and the second slot so as to lock the main body and the extension rod in proper positions, and the bulge and the slots are separated to unlock the main body and the extension rod; and the button penetrates through the lug in an extension way when the foldable handle is assembled.

Description

Dead-man's handle extended structure

Technical field

The present invention relates to foldable handle, more specifically, relate to the handle extended structure with locking position function for Vehicle jack.

Background technology

Conventionally can in Vehicle jack device or tool box, see foldable handle.Consider that foldable handle can, in use along the point of connection rotation between handle arm, preferably have the lock function that can foldable handle be locked in to fixed position after extension for this handle.

U.S. Pat 7237463B1 discloses a kind of flexible spanner, and it comprises handle, head and pivot.Pivot inserts the ears of head and handle movably so that both pivotables are connected.Pivot comprises multiple teeth that can engage with the tooth of ears, firmly to keep the angle between head and ears, and separates so that the angle between head and handle can change with the tooth of head.Similarly, U.S. Pat 2008196559A1 discloses a kind of high-mobility, multipurpose, wheeled vehicle driven tool.This instrument comprise have the casing device of the fastener drive for holding fastener driving gear first end, have for the second end of the tool housing device of accommodation function actuating device or functional accessory and be positioned at first end and the second end between pivotal point; Wherein, first end and the second end can be pivoted relative to each other.

But the present inventor recognizes the shortcoming of these flexible spanners.For example, this design needs independently with the pivot pin of rigidity to be pivotally connected to head and handle.In addition, this design need the ears of head to have and two ears of handle between the identical width of distance, this wastes metallic material very much.The other problems that applicant's invention is intended to address the above problem and sums up as follows.

Summary of the invention

The object of the present invention is to provide a kind of simple and easy handle extended structure with locking position function.According to an aspect of the present invention, a kind of foldable handle comprises: main body, has the first and second ears and comprise the pin that is formed on the first groove on the first ears; Extension rod, has pivotable and is connected to the third ear shape part of pin and is formed on the second groove in third ear shape part; And button, extending through pin and there is projection, this projection engages that with the first and second grooves handle main body and extension rod are locked in to appropriate location and depart from release lever main body and extension rod with two grooves.

According to a further aspect in the invention, the third ear shape part of extension rod can have the 4th groove being formed on wherein, and the 4th groove and described the second groove angle to 150 ° in 90 °, to keep more space in operating process between foldable handle or when rotation.On the contrary, pin can have formation the 3rd groove thereon, and the 3rd groove and described the first groove angle to 150 ° in 90 °, to keep the relevant position between handle main body and extension rod.In a preferred embodiment, first and the 3rd groove and the second and the 4th central angle between groove between 105 ° to 120 °.

According to another aspect of the invention, extension rod can have the 4th ears to be connected with the second ears of handle main body.The second ears can have the second pin to be connected with the 4th ears pivotable.In this way, the rotation between handle main body and extension rod can be supported by two pins, thereby provides more stable pivotable to connect.

According to another aspect of the invention, button can have U-shaped elastic clip.The 4th ears can have for the free end of U-shaped elastic clip is inserted to groove wherein.

According to another aspect of the invention, button can have the spring as clamper.The second pin of the second ears can have the hole for spring is fixed therein.In a preferred embodiment, spring can be integrated in button to form integral type button.

According to another aspect of the invention, handle main body can have when foldable handle groove for extension rod is placed in one during in its folding position.

Be according to the advantage of foldable handle of the present invention, handle main body is connected with extension rod pivotable and without any fastener or button, and button is only as blocking device.Button does not extend through the whole connecting bridge of handle main body and extension rod, and does not need to serve as described in the prior art the pivot pin of handle main body and extension rod.

Be according to another advantage of foldable handle of the present invention, the third ear shape part of extension rod can be thin and little, and do not need to have as described in the prior art the identical width of distance between two ears of handle main body, thereby save the material of foldable handle and reduce the cost of foldable handle.

Be according to another advantage of foldable handle of the present invention, it provides the simple and easy foldable handle structure with locking position function that is easy to assembling.

By the following description with reference to accompanying drawing, other targets of the present invention, advantage and feature will become clear.

Accompanying drawing explanation

By example, embodiments of the invention are described with reference to accompanying drawing, wherein:

Fig. 1 is the block diagram of the first embodiment of the foldable handle in extended position.

Fig. 2 is the block diagram of the first embodiment of handle ears.

Fig. 3 is the block diagram with the first embodiment of the extension rod of two opposing sidewalls.

Fig. 4 is the block diagram of the first embodiment of button.

Fig. 5 is the block diagram of the second embodiment of button.

Fig. 6 is the block diagram of the first embodiment of the handle extended structure with button in folding position.

Fig. 7 is the block diagram of the first embodiment of the handle extended structure with button in extended position

The specific embodiment

With reference to Fig. 1, show the foldable handle according to first embodiment of the invention.Foldable handle comprises handle main body 10 and at least one extension rod 20 that is connected in handle main body 10, and handle main body 10 has formation two

ears

11 and 12 thereon.Handle main body 10 can comprise when handle during in folding position for holding therein the groove of extension rod 20.

With reference to Fig. 2, show the block diagram of the handle main body 10 from seeing above.In Fig. 2, the boss being arranged on ears 11 inner sides is shown or sells 13, pin 13 is preferably around being positioned at middle hole or opening 16.Described hole 16 not only extends through pin 13, and passes the ears 11 of pin 13 belows.Pin 13 can have one or more its footpath grooves 15 upwards that are positioned at.In other words, opening 15 is basically perpendicular to hole 16.In a preferred embodiment, another ears 12 also can have formation pin 14 thereon.

With reference to Fig. 3, show the extension rod 20 for being connected with handle main body 10.Extension rod 20 has at least one sidewall or ears 21, and can have another sidewall or ears 22 and connect the base plate of two sidewalls 21 and 22.Base plate can be strengthened structure and the connection between 10 and 20.Structure as an alternative, can not have the base plate that connects two

sidewalls

21 and 22 to reach the object of saving material.On two

sidewalls

21 and 22, there are respectively two holes 23,25, for being pivotally connected to two boss 13 and 14 in handle main body 10.In alternate embodiment, only has a hole 23 for being connected with pin 13 pivotables of handle main body 10.On the edge in hole 23, can form at least one groove or opening 24.

With reference to Fig. 4, it is the preferred embodiment of the button that can assemble with handle main body 10 and extension rod 20.Button 30 can comprise button head 31 and elastic component or elastic base 33.Also in a side of button head 31, projection 32 is set.Button head 31 can extend through hole 23 and opening 16 in the time of assembling.Elastic component 33 is preferably the U-shaped of being made up of sheet metal or plastic material and presss from both sides.Button head 31 is arranged on the pillar 35 in two pillars of U-shaped folder 33, and another pillar 34 is fixed to extension rod 20, for example, be fixed on sidewall 21 by welding, gummed, riveted joint or any other known way.In one embodiment, can be on the inwall of sidewall 21 bending or otch of punching press for pillar 34 is inserted and secured on wherein.Elastic component 33 is compressed in the time of assembling, and button head 31 is remained on appropriate location by its elastic force.

In a preferred embodiment, projection 32 is rectangle.The length (H1) of projection or locking block 32 be greater than handle main body 10 opening 15 length but be less than or equal to the opening 15 of handle main body 10 and the total length (H2) of the groove 24 of extension rod 20, make when extension rod 20 is with respect to handle main body 10 during in extended position, projection 32 can engage with the opening 15 of the groove of extension rod 20 24 and handle main body 10.Projection 32 and the groove 24 of extension rod 20 and the opening 15 of handle main body 10 can also have other shapes or the structure that can mutually mate, for example triangle or ellipse.

With reference to Fig. 5, show the alternate embodiment of elastic fastener.In this embodiment, elastic component and fastener body are integrally formed, and in the main body of button 30, have helical cutting to be provided as the spring function of spring.In other alternate embodiments, elastic component can be spring independently.Middle part at the second boss 14 of described the second ears 12 can have second opening for spring is fixed therein.

With reference to Fig. 6, show the embodiment of the foldable handle in folding position.In this position, the groove of extension rod 20 24 15 is not connected with opening of handle main body 10, but is in opposite side.Projection 32 and the groove 24 of extension rod or the opening 15 of handle main body 10 of button 30 depart from.In the time that foldable handle is shifted to extended position, the projection 32 of elastic fastener keeps departing from until arrive complete extended position with groove 24 or opening 15.

With reference to Fig. 7, show the embodiment of the foldable handle in extended position.In this extended position, the groove 24 of extension rod 20 and the opening 15 of handle main body 10 are met, thereby form the larger opening of the length (H2) with the length (H1) that is more than or equal to projection 32.In this case, projection 32 can join in this larger opening under the bounce of button, thereby lock handle main body 10 and extension rod 20 are to prevent pivotable between the two.

Only have and be depressed and when projection 32 departs from larger opening when button 30, could release lever main body 10 and extension rod 20, then extension rod 20 can be around extending main body 10 pivotables.By this handle extended structure, can avoid operating time, the accident of extension arm be folding, thereby provides more protections for operator.

In alternate embodiments, can there is three opening or the groove 18 similar to being positioned at opening 15 on the boss 13 of handle ears 11.The central angle (" A ") of opening 15 and the 3rd opening 18 is approximately 90 ° to 180 °, and is preferably 105 ° to 120 °.In the time that foldable handle is retracted folding position, the 3rd opening 18 can provide further protection for operator's hand.Foldable handle can only have an opening 18 for projection 32, extends main body 10 and extension rod 20 with the angle locking of about 60 ° to 75 °, thereby the space that keeps certain for operator's finger prevents from coming to harm.

In another alternate embodiments, on the contrary, on the edge in hole 23 that can be on sidewall 22, arrange the 4th groove or opening.The central angle of groove 24 and the 4th groove is approximately 90 ° to 180 °, and is preferably 105 ° to 120 °.Also can realize similar defencive function by this structure.

Handle main body 10 and extension rod 20 can have respectively similar safe extended structure at the other end, further to extend as required the overall length of handle.

Although illustrate and described embodiments of the invention, and do not mean that these embodiment can illustrate and describe all possible forms of the present invention.On the contrary, the word using in specification sheets is descriptive words and unrestricted, and should be appreciated that and can produce multiple modification and not depart from the spirit and scope of the invention.

Claims

1. a foldable handle, comprising:

Main body, has the first ears, the second ears and is formed on the boss with the first groove on described the first ears;

Extension rod, has third ear shape part, and described third ear shape part has the second groove to be pivotally connected to described boss; And

Button, extend through described boss, described button has projection, described projection can engage that described main body and described extension rod are locked in to fixed position with described the first groove and described the second groove, and can depart from main body described in release and described extension rod with described the first groove and described the second groove.

2. foldable handle according to claim 1, wherein, described boss has the 3rd groove forming thereon.

3. foldable handle according to claim 2, wherein, the central angle of described the first groove and described the 3rd groove is between 90 ° and 150 °.

4. foldable handle according to claim 2, wherein, the central angle of described the first groove and described the 3rd groove is between 105 ° and 120 °.

5. foldable handle according to claim 1, wherein, described third ear shape part has the 4th groove being formed on wherein.

6. foldable handle according to claim 5, wherein, the central angle of described the second groove and described the 4th groove is between 90 ° and 150 °.

7. foldable handle according to claim 5, wherein, the central angle of described the second groove and described the 4th groove is between 105 ° and 120 °.

8. foldable handle according to claim 1, wherein, described extension rod has the 4th ears to be connected with described the second ears.

9. foldable handle according to claim 8, wherein, described the second ears has the second boss to be pivotally connected to described the 4th ears.

10. foldable handle according to claim 9, wherein, described button has U-shaped elastic clip.

11. foldable handles according to claim 10, wherein, described the 4th ears has the free end of described U-shaped elastic clip is inserted to groove wherein.

12. foldable handles according to claim 11, wherein, described button has the spring that serves as clamper.

13. foldable handles according to claim 12, wherein, described the second ears has described spring is inserted to hole wherein.

14. foldable handles according to claim 12, wherein, described spring and described button are integrally formed.

15. foldable handles according to claim 1, wherein, described main body has the groove when folding, described extension rod being placed in one.