CN108439234B - The telescopic device of telescopic arm - Google Patents
The telescopic device of telescopic arm Download PDFInfo
- Publication number
- CN108439234B CN108439234B CN201810471017.3A CN201810471017A CN108439234B CN 108439234 B CN108439234 B CN 108439234B CN 201810471017 A CN201810471017 A CN 201810471017A CN 108439234 B CN108439234 B CN 108439234B
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- Prior art keywords
- arm
- arms
- end arms
- end side
- elongation
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
- B66F9/0655—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted with a telescopic boom
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Jib Cranes (AREA)
- Manipulator (AREA)
Abstract
The present invention provides a kind of telescopic device of telescopic arm, can improve the operability of telescopic arm while realizing cost effective, and can be improved the efficiency of insertion operation.The telescopic device (3) of telescopic arm (1) has: telescoping cylinder (4), stretches the second arm (22)；And telescoping mechanism (5), it links with the expanding-contracting action of telescoping cylinder (4), end arms (24) and third arm (23) before simultaneous retractable.Telescoping mechanism (5) has rod shaped support component (10).The one end of the rod shaped support component (10) is fixed on the base end side in third arm (23) and configures in preceding end arms (24).Rod shaped support component (10) is formed as the end arms elongation pulley (71,71) before its front-end configuration has and is built in preceding end arms (24).
Description
The application be international filing date be on April 30th, 2015, application No. is 201580030872.5, it is entitled
The divisional application of the application for a patent for invention of " telescopic device of telescopic arm ".
Technical field
The present invention relates to a kind of telescopic devices, and 4 grades for being arranged in the Work machines such as crane locomotive, high-altitude operation vehicle
More than formula telescopic arm it is flexible.
Background technique
In the past, as more than 4 grades of formulas the stretching in the telescopic arm for being set to the Work machines such as crane locomotive, high-altitude operation vehicle
The flexible used telescopic device of contracting arm, such as propose a kind of open such telescopic device of patent document 1.
The device has: at least two telescoping cylinder, the multiple arms to stretch other than preceding end arms；And telescoping mechanism,
End arms before stretching in linkage at least two telescoping cylinder with the expanding-contracting action of the telescoping cylinder of preceding end arms side.In the telescoping mechanism,
2 pulleys (elongation pulley and diminution pulley) and 2 wirerope (elongation wirerope and diminution steel wires are used
Rope).
Patent document
Patent document 1: the real public clear 63-038219 bulletin of Japan
Summary of the invention
Subject to be solved by the invention
But in existing telescopic device, in the case where elongation is fixed on the front end of third arm with pulley, there are slotting
Enter the case where interferenceing with barrier and damage in operation.Therefore, it is inserted into the inefficient of operation.In addition, so-called insertion operation
In the operation of the elongation such as branch intensive scene telescopic arm when being to interior of building handling weight or building park.
In addition, due to using at least two telescoping cylinder, the extension and contraction control of telescoping cylinder is complicated, cost in existing telescopic device
It is higher.
In addition, since each telescoping cylinder stretches in sequence when flexible, in telescoping cylinder switching, the stretching speed of telescopic arm
Variation can generate impact (impact when arm changes grade) to telescopic arm.Therefore, the operability of telescopic arm is bad.
The present invention is completed in view of such existing project, and its purpose is to provide one kind can be cost effective in realization
While improve telescopic arm operability, and can be improved insertion operating efficiency telescopic arm telescopic device.
The means solved the problems, such as
The present inventor uses the flexible dress of following such telescopic arm by concentrating on studies in order to solve the problem
It sets.
The telescopic device of telescopic arm of the invention is used to be set to the flexible of the telescopic arm of 4 grades of formulas of Work machine, special
Sign is: 1 telescoping cylinder is included, before which is configured at when full reduced in end arms and lower 2 grades of the preceding end arms of stretching
Arm；And telescoping mechanism, the expanding-contracting action of the telescoping mechanism and the telescoping cylinder link, preceding end arms described in simultaneous retractable and its under
1 grade of arm；The telescoping mechanism has rod shaped support component, and the one end of the rod shaped support component is fixed on described lower 1 grade
Base end side in arm is simultaneously configured in the preceding end arms, since the telescoping cylinder for the full reduced state being retracted in advance is stretched and
It is mobile to the front end side of the telescopic arm, it stretches since the telescoping cylinder for stretching state entirely being stretched in advance is retracted and to described
The base end side of contracting arm is mobile, which is not flexible component, which is formed as in its front end side
Configured with the preceding end arms elongation pulley for extending the preceding end arms and it is built in the preceding end arms, the preceding end arms elongation is used
Pulley is the pulley that configures of front end side pair of right and left ground in the rod shaped support component, in order to use with end arms elongation before a pair
The preceding end arms elongation that pulley makes the preceding end arms elongation together and uses is hung on wirerope by the front end side of the telescoping cylinder
End arms elongation pulley before a pair, the base end side in the preceding end arms is fixed at both ends.
The telescopic device of telescopic arm of the invention is used to be set to the flexible of the telescopic arm of 4 grades of formulas of Work machine, special
Sign is: 1 telescoping cylinder is included, before which is configured at when full reduced in end arms and lower 2 grades of the preceding end arms of stretching
Arm；And telescoping mechanism, the expanding-contracting action of the telescoping mechanism and the telescoping cylinder link, preceding end arms described in simultaneous retractable and its under
1 grade of arm；The telescoping mechanism has rod shaped support component, and the one end of the rod shaped support component is fixed on described lower 1 grade
Base end side in arm is simultaneously configured in the preceding end arms, since the telescoping cylinder for the full reduced state being retracted in advance is stretched and
It is mobile to the front end side of the telescopic arm, it stretches since the telescoping cylinder for stretching state entirely being stretched in advance is retracted and to described
The base end side of contracting arm is mobile, which is not flexible component, which is formed as in its front end side
Configured with the preceding end arms elongation pulley for extending the preceding end arms and be built in the preceding end arms, will be used to reduce it is described before
The preceding end arms diminution wheels arrangements of end arms are in the cardinal extremity of the base end side in lower 1 grade of the arm, described rod shaped support component
Side, the preceding end arms diminution pulley that configures of base end side pair of right and left ground that pulley is in the rod shaped support component, in order to
The preceding end arms diminution wirerope for making the preceding end arms reduce and use together with end arms diminution pulley before a pair passes through institute
The front end side for stating telescoping cylinder is hung on end arms diminution pulley before a pair, and the base end side in the preceding end arms is fixed at both ends.
The telescopic device of telescopic arm of the invention is used to be set to the flexible of the telescopic arm of 4 grades of formulas of Work machine or more,
Characterized by possessing at least one telescoping cylinders, in end arms and flexible described before which is configured at when full reduced
Lower 2 grades of later arms of preceding end arms；And telescoping mechanism, the telescoping mechanism at least one telescoping cylinder be located at it is described before
The expanding-contracting action of the preceding end arms side telescoping cylinder of end arms side links, preceding end arms and its lower 1 grade arm described in simultaneous retractable；It is described to stretch
Contracting mechanism has rod shaped support component, and the one end of the rod shaped support component is fixed on the base end side in lower 1 grade of the arm simultaneously
It is configured in the preceding end arms, which is formed as before its front end side is configured with for extending the preceding end arms
End arms elongation pulley is simultaneously built in the preceding end arms.
Furthermore it is preferred that in the telescopic device of telescopic arm of the invention, it, will in the front end side of the preceding end arms side telescoping cylinder
Lower 1 grade of arm elongation pulley for extending lower 1 grade of the arm is configured in a manner of being built in the preceding end arms.
Further, it is preferable to will be used to reduce the front end of the preceding end arms in the telescopic device of telescopic arm of the invention
Arm diminution wheels arrangements are in the base end side in lower 1 grade of the arm.
Furthermore it is preferred that the base end side in lower 1 grade of the arm will be described in the telescopic device of telescopic arm of the invention
Preceding end arms diminution wheels arrangements are in the base end side of the rod shaped support component.
Furthermore it is preferred that in the telescopic device of telescopic arm of the invention, the preceding end arms elongation pulley relative to institute
The allocation position for stating rod shaped support component is configured to: making the rotation center of the preceding end arms elongation pulley along the rodlike branch
The horizontal line that the length direction of support part part passes through is consistent with the central axis of the rod shaped support component or is located at the central axis
Near line.
Furthermore it is preferred that the preceding end arms elongation is in the stick with pulley in the telescopic device of telescopic arm of the invention
The pulley configured to the front end side pair of right and left of shape support member, in order to make end arms elongation cunning before the preceding end arms and a pair
It takes turns the preceding end arms elongation for extending and using together and a pair is hung on by the front end side of the preceding end arms side telescoping cylinder with wirerope
Preceding end arms elongation pulley, the base end side in the preceding end arms is fixed at both ends.
Furthermore it is preferred that the preceding end arms diminution is in the stick with pulley in the telescopic device of telescopic arm of the invention
The pulley configured to the base end side pair of right and left of shape support member, in order to reduce end arms before the preceding end arms and a pair with cunning
It takes turns the preceding end arms diminution reduced and used together and a pair is hung on by the front end side of the preceding end arms side telescoping cylinder with wirerope
Preceding end arms, which reduces, uses pulley, and the base end side in the preceding end arms is fixed at both ends.
Furthermore it is preferred that the rod shaped support component is formed as on the inside of it in the telescopic device of telescopic arm of the invention
Configure a part of described lower 1 grade of arm elongation pulley.
Further, it is preferable to which the rod shaped support component is configured at described in the telescopic device of telescopic arm of the invention
The top of preceding end arms side telescoping cylinder, Formation cross-section shape be it is inverted U-shaped rodlike, be configured in the inside of the rod shaped support component
The top of pulley is used in lower 1 grade of the arm elongation.
Beneficial effects of the present invention are as follows:
In the telescopic device of telescopic arm of the invention, preceding end arms elongation is built in pulley using rod shaped support component
Preceding end arms.As a result, when being inserted into operation before end arms elongation pulley will not interference with barrier.Therefore, of the invention flexible
The telescopic device of arm can be improved the efficiency of insertion operation.
Further, in the telescopic device of telescopic arm of the invention, instead of lower 1 grade of the arm for flexible preceding end arms
Telescoping cylinder and used telescoping mechanism.Thus telescoping cylinder using radical than reducing one in the past, it is compared with the past being capable of letter
Change the control of the expanding-contracting action of telescoping cylinder.Therefore, the telescopic device of telescopic arm of the invention can be realized cost effective.
In addition, in the telescopic device of telescopic arm of the invention, by using telescoping mechanism, preceding end arms and its lower 1 grade
Arm can simultaneous retractable, so can eliminate arm grade switching when impact, additionally be able to reduce number of shocks.Therefore, this hair
The telescopic device of bright telescopic arm can improve the operability of telescopic arm.
Further, in the telescopic device of telescopic arm of the invention, by preceding end arms elongation wheels arrangements in rodlike branch
The front end side of support part part forms the rod shaped support component in a manner of being built in front end arm, and preceding end arms diminution pulley is matched
It is placed in the base end side of the rod shaped support component.Even if as a result, before telescopic arm assembling or separate with the assembling of telescopic arm or
Simultaneously not with telescopic arm assembling, end arms elongation wirerope and preceding end arms reduce person before capable of also hanging up respectively on two pulleys
Tension is adjusted with wirerope.That is, when telescopic arm assembles two wirerope can not be mixed, there is no need to a marginal nots
Meaning is not damaged two wirerope and is assembled on one side, without the tension for adjusting two wirerope after telescopic arm assembles.Therefore,
The telescopic device of telescopic arm of the invention can be realized the reduction in assembling working hour.
Further, in the telescopic device of telescopic arm of the invention, in the front end side of preceding end arms side telescoping cylinder 1 grade by under
Arm elongation preceding end arms is configured in built-in mode with pulley, rod shaped support component and preceding end arms side telescoping cylinder are matched in parallel
It sets, 1 grade under configuring on the inside of it of arm elongation is formed in a manner of a part of pulley.Thereby, it is possible in end arms before saving
Design space, there is no need to the sectional areas for the preceding end arms for configuring in telescopic arm most inner side to be greater than required area, without
The sectional area of other telescopic arms is set to be greater than required area.Therefore, the telescopic device of telescopic arm of the invention can be whole by telescopic arm
The sectional area of body is controlled to minimum limit.As a result, it is possible to realize the lightweight of telescopic arm, additionally it is possible to control the manufacture of telescopic arm
Cost.
Detailed description of the invention
Fig. 1 is the right view of inside of the telescopic arm of an embodiment of the invention when full reduced.
Fig. 2 is the perspective view of the telescopic device of the same embodiment
Fig. 3 is the enlarged drawing of the part of the base end side of Fig. 2.
Fig. 4 is the state diagram for indicating all to stretch out telescopic arm from Fig. 1 state.
Fig. 5 be in Fig. 1 before enlarged drawing centered on end arms elongation pulley.
Fig. 6 is indicated in the inside of the rod shaped support component of the same embodiment configured with the upper of third elongation pulley
The sectional view of the state in portion.
Fig. 7 is indicated in the inside of the rod shaped support component of the same embodiment configured with the upper of third elongation pulley
The perspective view of the state in portion.
Fig. 8 is the exploded perspective view for indicating the structure of the base end part of rodlike support member in Fig. 3.
Fig. 9 is the perspective view that the other end of third arm elongation wirerope is fixed on to the state of fixed pin in fig. 8.
Figure 10 is indicated between the base end part of the third arm of the same embodiment and the base end part of rod shaped support component
The exploded perspective view of fixed structure.
Figure 11 is the perspective view for indicating the base end part of third arm of the same embodiment.
Figure 12 is the figure for indicating the relationship between the base end part of the telescoping cylinder of the same embodiment and the bottom of bottom end arm.
Figure 13 is the perspective interior view for indicating the base end side of bottom end arm of the same embodiment.
Figure 14 is the exploded perspective view for indicating to have removed the state of obstructing part in Figure 13.
Specific embodiment
Hereinafter, illustrating embodiments of the present invention with reference to the accompanying drawings using the telescopic arm of 4 grades of formulas as example.
Fig. 1 is the right view of inside of the telescopic arm 1 of an embodiment of the invention when full reduced.The telescopic arm 1 is set
It sets on the Work machines such as crane locomotive, high-altitude operation vehicle.In addition, the telescopic arm 1 is 4 grades of formula telescopic arms, there is 2 He of arm body
Utilize the hydraulic telescopic device 3 that arm body 2 is stretched.In addition, front side is front end side in the telescopic arm of Fig. 1, rear side is rear end
Side.It is also same in following figure.
Arm body 2 is formed as 4 arms and is inserted into and can be stretched along the length direction A of telescopic arm 1 in a nesting relation from base end side
Contracting.4 arms are respectively bottom end arm 21, the second arm 22, third arm 23 and preceding end arms 24 since the base end side.Each arm is formed as
Tubular.In addition, third arm 23 is equivalent to lower 1 grade of the arm of preceding end arms 24 in the present invention, the second arm 22 is suitable in the present invention
In lower 2 grades of later arms of preceding end arms 24.
Telescoping cylinder 4 (preceding end arms side telescoping cylinder) and flexible third arm 23 He of the telescopic device 3 with flexible second arm 22
The telescoping mechanism 5 of preceding end arms 24.
Before telescoping cylinder 4 is configured in end arms 24.The telescoping cylinder 4 has the cylinder hose 41 of tubular, the freedom in cylinder hose 41
The cylinder rod 42 that the piston (not shown) slidably configured and one end are fixed on piston and are extracted from the cardinal extremity of cylinder hose 41.
The base end part 42a of cylinder rod 42 is fixed on the base end side of bottom end arm 21.The base end part 41a of cylinder hose 41 is fixed on second
The base end side of arm 22 is simultaneously configured in preceding end arms 24.The cylinder hose 41 is configured to mobile using hydraulic A along its length, by this
It moves to keep telescoping cylinder 4 flexible.
Telescoping mechanism 5 is the mechanism with the linkage of the expanding-contracting action of telescoping cylinder 4 and simultaneous retractable third arm 23 and preceding end arms 24.
The telescoping mechanism 5 has rod shaped support component 10,2 elongation wirerope mechanisms and 2 diminution wirerope mechanisms.
[rod shaped support component 10]
Firstly, being illustrated with Fig. 1 to rod shaped support component 10.Rod shaped support component 10 be for that will describe below before
The component of end arms 24 before end arms elongation pulley 71, (71) are built in.The rod shaped support component 10 is formed as rodlike, in cylinder hose
41 top configures in parallel with cylinder hose 41.Further, the one end of the rod shaped support component 10 is fixed on third arm 23
Interior base end side, A is configured along its length in preceding end arms 24.In addition, parenthesized part is located at left side, so not scheming
Show.The following description is also the same.
In addition, the cross sectional shape of rod shaped support component 10 is formed as reverse U shape (U-shaped of lower opening) as shown in Figure 6.
Therefore, the sidewall portion that rod shaped support component 10 has upper wall portions 10a, is bent to form downwards from the left and right sides of upper wall portions 10a
10b、10b。
Between sidewall portion 10b, 10b of the left and right of rod shaped support component 10, after being configured with as shown in Figure 6 and Figure 7
The top 61a for the third arm elongation pulley 61 stated.That is, the inside 10s in rod shaped support component 10 is extended configured with third arm
With the top 61a of pulley 61.
[2 elongation wirerope mechanisms]
Then, 2 elongations are illustrated with wirerope mechanism with Fig. 1 to Fig. 3.2 elongations are with wirerope mechanism
Three arms elongation wirerope mechanism 6 and preceding end arms elongation wirerope mechanism 7.
Third arm elongation wirerope mechanism 6 is the mechanism for extending third arm 23.Third arm elongation wirerope machine
Structure 6 has third arm elongation pulley 61 and multiple third arms elongation wirerope 62.
Third arm elongation pulley 61 is fixed on cylinder hose front end side support portion 11, which sets
It is placed in the front end side of cylinder hose 41.Third arm elongation pulley 61 is located in rod shaped support component 10, end arms 24 before being built in.
The diameter of third arm elongation pulley 61 is formed as bigger than the diameter of cylinder hose 41.Therefore, third arm elongation cunning
The top 61a and lower part 61b (referring to Fig. 5, Fig. 6) of wheel 61 are also more prominent up and down than the top edge of cylinder hose 41 and lower edge.Cause
This, as before chatting, the top 61a of third arm elongation pulley 61 is configured at the inside 10s of rod shaped support component 10.
In addition, the elongation of third arm is horizontal relative to cylinder hose front end side support portion 11 with rotary shaft (not shown) with pulley 61
Mode configures.In addition, third arm elongation pulley 61 is in the range that can hang up third arm elongation wirerope 62, rotary shaft
It can be arranged obliquely relative to cylinder hose front end side support portion 11.
A is formed cylinder hose front end side support portion 11 along its length.The front end of the cylinder hose front end side support portion 11
Downside or so is equipped with roller bearing 11a, (11a).Roller bearing 11a, (11a) contact the downside in arm body 2 when telescopic arm 1 stretches
Mobile and support telescopic device 3.
Each third arm elongation wirerope 62 hangs over third arm elongation pulley 61.Each third arm elongation wirerope 62
Third arm elongation wirerope one end fixed part 12, third arm elongation wirerope one end fixed part 12 are fixed in one end
It is set to the downside of the base end part 42a of cylinder rod 42.In addition, each third arm elongation is fixed on third arm with the other end of wirerope 62
Elongation wirerope another side fixed part 13, the third arm elongation wirerope another side fixed part 13 are set to rodlike branch
Base end side in support part part 10.
Preceding end arms elongation wirerope mechanism 7 is the mechanism for extending preceding end arms 24.The preceding end arms elongation wirerope machine
Structure 7 has end arms elongation pulley 71, (71) and preceding end arms elongation wirerope 72 before a pair.
End arms elongation pulley 71, (71) are configured at the collateral support part 14 or so of rod shaped support member forward end and are consolidated before a pair
Fixed, the collateral support part 14 of the rod shaped support member forward end is set to the front end side of rod shaped support component 10.Each preceding end arms elongation cunning
Wheel 71 is configured with rotary shaft (not shown) relative to 10 horizontal mode of rod shaped support component.In addition, pulley is used in each preceding end arms elongation
71 before it can hang up end arms elongation wirerope 72 range, rotary shaft can also relative to rod shaped support component 10 tilt match
It sets.
Preceding end arms elongation wirerope 72 is hung on end arms elongation pulley before a pair by cylinder hose front end side support portion 11
71, (71) (referring to Fig. 2).End arms elongation wirerope fixed part 15 before preceding end arms elongation is fixed on the both ends of wirerope 72,
The upper surface of base end side before the preceding end arms elongation wirerope fixed part 15 is installed in end arms 24.
Then, movement (Fig. 1 to figure is stretched entirely to the telescopic arm 1 that 2 elongation wirerope mechanisms and telescoping cylinder 4 are utilized
4) it is illustrated.
The elongation of (1) second arm 22
Keep cylinder hose 41 mobile to the front end side of telescopic arm 1 using hydraulic.As a result, the second arm 22 of stationary cylinder hose 41 to
Front end side is mobile and is drawn out.
(2) elongation of third arm 23
As 41 forward end side of cylinder hose is mobile, it is fixed on the third arm elongation pulley 61 of the front end side of cylinder hose 41
Forward end side is mobile.
Herein, the third arm elongation for being hung on third arm elongation pulley 61 is fixed on cylinder rod 42 with the both ends of wirerope 62
Base end side in base end part 42a and rod shaped support component 10.
Therefore, even if the elongation of third arm is mobile with 61 forward end side of pulley, one end of third arm elongation wirerope 62 is also
It is to maintain the base end part 42a for being fixed on cylinder rod 42, with the other end by 10 forward end side stretching of rod shaped support component.It is rodlike as a result,
10 forward end side of support member is mobile.Along with this, the mobile simultaneously quilt in the 23 forward end side of third arm of fixed rodlike support member 10
It pulls out.
(3) elongation of end arms 24 before
As 10 forward end side of rod shaped support component is mobile, the preceding end arms for being fixed on the front end side of rod shaped support component 10 is stretched
It is long mobile with pulley 71, (71) also forward end.
Herein, the preceding end arms elongation of end arms elongation pulley 71, (71) before being hung on by cylinder hose front end side support portion 11
With the both ends of wirerope 72 because the base end side in preceding end arms 24 is fixed on, by preceding 24 forward end side stretching of end arms.As a result,
Preceding 24 forward end side of end arms is mobile and is drawn out.
In addition, the configuration bit relative to rod shaped support component 10 of each preceding end arms elongation pulley 71 as shown in Figure 5
Setting can be set to, and the rotation center 71s of preceding end arms elongation pulley 71 is (flexible along the length direction of rod shaped support component 10
The length direction A of arm 1) the horizontal line 71t that the passes through central axis 10t that is located at rod shaped support component 10 downside near.
So-called central axis 10t is that rod shaped support component 10 is not loaded when applying bending moment to rod shaped support component 10
Part.For rod shaped support component 10 because being formed as rodlike, central axis 10t is usually consistent with horizontal line 71t.But
As mentioned earlier, rod shaped support component 10 is formed as the section U-shaped being open downwards, so the intensity on top becomes strong,
Central axis 10t is located at upper compared with horizontal line 71t.
In addition, being equipped with truck mounts 141 in the front end side of the collateral support part 14 of rod shaped support member forward end.The roller bearing
The upper and lower part of mounting portion 141 is separately installed with upper roller 14b, (14b) and lower roller 14a, (14a).
Upper roller 14b, (14b) and lower roller 14a, (14a) are contacted in arm body 2 when telescopic arm 1 stretches respectively
The upper side and lower side is mobile and support telescopic device 3.
[2 are reduced with wirerope mechanism]
Then, 2 diminutions are illustrated with wirerope mechanism with Fig. 1 to Fig. 3.2 diminutions are with wirerope mechanism
Three arms, which reduce to be reduced with wirerope mechanism 8 and preceding end arms, uses wirerope mechanism 9.
Third arm diminution wirerope mechanism 8 is the mechanism for reducing third arm 23.The third arm, which reduces, uses wirerope machine
There is structure 8 a pair of of third arm to reduce with pulley 81, (81) and third arm diminution wirerope 82, (82).
A pair of of third arm reduces pulley 81, the base end side that (81) left and right is configured in the second arm 22 and is fixed.
In addition, third arm reduces pulley 81, (81) are matched with rotary shaft (not shown) relative to 22 horizontal mode of the second arm
It sets.In addition, third arm reduces pulley 81, (81) in the range that can hang up third arm diminution wirerope 82, rotary shaft
It can be arranged obliquely relative to the second arm 22.
Third arm diminution wirerope 82 is by being set to the rod shaped support component base of the base end side of rod shaped support component 10
End side support portion 16 is hung on a pair of of third arm diminution pulley 81, (81) (with reference to Fig. 3).Third arm, which reduces, uses the two of wirerope 82
Third arm diminution wirerope fixed part 17 is fixed at end, which is installed on bottom end arm 21
Front end side.
Preceding end arms diminution wirerope mechanism 9 is the mechanism for reducing preceding end arms 24.The preceding end arms, which reduces, uses wirerope machine
There is structure 9 end arms before a pair to reduce with pulley 91, (91) and preceding end arms diminution wirerope 92.
End arms reduces pulley 91 before a pair, (91) are configured at base end side of rod shaped support component 10 or so and are fixed.
In addition, preceding end arms is reduced with pulley 91, (91) with rotary shaft (not shown) relative to 10 level of rod shaped support component
Mode configures.In addition, preceding end arms reduces the range of pulley 91, (91) the end arms diminution wirerope 92 before it can hang up, rotation
Shaft can also be arranged obliquely relative to rod shaped support component 10.
Preceding end arms diminution wirerope 92 is hung on end arms diminution pulley before a pair by cylinder hose front end side support portion 11
91, (91) (referring to Fig. 2).End arms diminution wirerope fixed part 18 before preceding end arms diminution is fixed on the both ends of wirerope 92,
The upper surface of base end side in preceding end arms 24 is arranged in preceding end arms diminution wirerope fixed part 18.Wirerope is used in the preceding end arms diminution
Fixed part 18 is configured at than preceding end arms elongation wirerope fixed part 15 by base end side, with preceding end arms elongation wirerope fixed part
15 is opposite.
Then, to the full reduced movement for the telescopic arm 1 that 2 diminution wirerope mechanisms and telescoping cylinder 4 are utilized (Fig. 4 to figure
1) it is illustrated.
The diminution of (1) second arm 22
Keep cylinder hose 41 mobile to the base end side of telescopic arm 1 using hydraulic.As a result, the second arm 22 of stationary cylinder hose 41 to
Base end side is mobile and is pulled.
(2) diminution of third arm 23
As the second arm 22 is mobile to base end side, it is fixed on the third arm diminution pulley of the base end side in the second arm 22
81, (81) are also mobile to base end side.
Herein, the third of third arm diminution pulley 81, (81) is hung on by rod shaped support component base end side support portion 16
The front end side of bottom end arm 21 is fixed in arm diminution with the both ends of wirerope 82 by the base end side of rod shaped support component 10.
Therefore, the diminution of third arm with wirerope 82 as third arm diminution pulley 81, (81) are mobile to base end side because
Both ends are held stationary in the front end side of bottom end arm 21, stretch rod shaped support component 10 to base end part in middle section.As a result,
Rod shaped support component 10 is mobile to base end side.Along with this, the 23 forward end side of third arm of fixed rodlike support member 10 is mobile
And it is pulled.
(3) diminution of end arms 24 before
As rod shaped support component 10 is mobile to base end side, it is fixed on the preceding end arms contracting of the base end side of rod shaped support component 10
It is small also mobile to base end side with pulley 91, (91).
Herein, the preceding end arms diminution of end arms diminution pulley 91, (91) before being hung on by cylinder hose front end side support portion 11
With wirerope 92 because both ends be fixed in front of base end side in end arms 24, by preceding end arms 24 to cardinal extremity side stretching.As a result,
Preceding end arms 24 is mobile to base end side and is pulled.
The telescopic device 3 of the telescopic arm 1 of such embodiment is stretched flexible using 1 telescoping cylinder 4 and telescoping mechanism 5
Arm 1.
In existing telescopic device, for second arm that stretches in the telescopic arm of 4 grades of formulas as in the embodiment
22 and third arm 23 used 2 telescoping cylinders.But in the telescopic device 3 of present embodiment, in order to stretch, third arm 23 replaces
Telescoping cylinder and used telescoping mechanism 5.The use number of telescoping cylinder than reduces 1 in the past as a result, has become 1, therefore
The control of the expanding-contracting action compared with the past that telescoping cylinder can be simplified.Therefore, the telescopic device 3 of present embodiment can be realized low
Cost.
In addition, by using telescoping mechanism 5, the use number of telescoping cylinder is than previous in the telescopic device 3 of present embodiment
1 is reduced, has become 1, therefore each arm being capable of simultaneous retractable, additionally it is possible to eliminate the impact when switching of arm grade.Therefore, this implementation
The telescopic device 3 of mode can improve the operability of telescopic arm 1.
Further, it in the telescopic device 3 of present embodiment, extends using rod shaped support component 10 and by preceding end arms with cunning
Wheel 71, (71) are built in preceding end arms 24.
As a result, when being inserted into operation, preceding end arms elongation pulley 71, (71) will not interference with barrier, therefore, this reality
The telescopic device 3 for applying mode can be improved the efficiency of insertion operation.
In addition, in cylinder hose front end side, support portion 11 configures third arm elongation cunning in the telescopic device 3 of present embodiment
Wheel 61 is simultaneously built in preceding end arms 24.
As a result, when being inserted into operation, third arm elongation pulley 61 will not interference with barrier.Therefore, this implementation
The telescopic device 3 of mode can make insertion operating efficiency higher.
In addition, in the telescopic device 3 of present embodiment, to be located at rod shaped support by the horizontal line 71t of rotation center 71s
Mode near the central axis 10t of component 10, to set the allocation position of each preceding end arms elongation pulley 71.Therefore, it stretches
Compression apparatus 3 can control the bending moment for being applied to rod shaped support component 10.Therefore, setting rod shaped support portion can be minimized
The section of part 10 can control the installation space of rodlike support member 10.Along with this, additionally it is possible to by built-in rod shaped support component
The section of 10 preceding end arms 24 is set to smaller.Therefore, in the telescopic device 3 of present embodiment, can be whole by telescopic arm 1
Section (size) is set to smaller, can be realized lightweight and cost effective.
Further, in the telescopic device 3 of present embodiment, end arms is stretched before the front end side of rod shaped support component 10 configures
It is long to use pulley 71, (71), which is formed in a manner of being built in front end arm 24, in the rod shaped support component
10 base end side is reduced configured with preceding end arms uses pulley 91, (91).Even if as a result, before telescopic arm 1 assembles or and telescopic arm
1 assembling separate or not with the assembling of telescopic arm 1 simultaneously, also can before two pulleys are hung up respectively end arms elongation steel wire
Rope 72 and preceding end arms diminution adjust tension with wirerope 92.That is, two can not also be mixed when telescopic arm 1 assembles
A wirerope 72,92, so without on one side paying attention to being assembled while not damaging two wirerope 72,92, without flexible
Arm 1 adjusts the tension of two wirerope 72,92 after assembling.Therefore, the telescopic device 3 of present embodiment can be realized assembling working hour
Reduction.
In addition, preceding end arms elongation be hung on wirerope 72 by the front end side of telescoping cylinder 4 before end arms elongation pulley 71,
(71), the base end side before both ends are fixed in end arms 24.Therefore, preceding end arms elongation is with the fixed operation of wirerope 72 same
Position carries out, therefore can be improved the operating efficiency of the fixed operation of preceding end arms elongation wirerope 72.
In addition, preceding end arms diminution be hung on wirerope 92 by the front end side of telescoping cylinder 4 before end arms diminution pulley 91,
(91), the base end side before both ends are fixed in end arms 24.Therefore, preceding end arms diminution is with the fixed operation of wirerope 92 same
Position carries out, so can be improved the operating efficiency of the fixed operation of preceding end arms diminution wirerope 92.
In addition, third arm elongation wirerope 62 is hung on configuration in the third arm elongation pulley of the front end side of telescoping cylinder 4
61, the base end side of telescoping cylinder 4 and the base end side of rod shaped support component 10 are fixed in both ends.Even if being assembled as a result, in telescopic arm 1
Preceding or with telescopic arm 1 assembling separate or not with the assembling of telescopic arm 1 simultaneously, end arms elongation steel before capable of also adjusting
The tension of cord 62.It is therefore not necessary to end arms elongation wirerope 72 and preceding end arms diminution steel before being adjusted after the assembling of telescopic arm 1
The tension of cord 92, and do not need the tension of adjustment third arm elongation wirerope 62 yet.Therefore, present embodiment is flexible
Device 3 can further decrease assembling working hour.
Further, in the telescopic device 3 of present embodiment, front end side (the cylinder hose front end side support portion of telescoping cylinder 4
11) third arm elongation pulley 61 is configured in a manner of being built in front end arm 24, rod shaped support component 10 and telescoping cylinder 4 is flat
It configures, is formed in such a way that a part (top 61a) of third arm elongation pulley 61 is configured inside 10s capablely.
Thereby, it is possible to inhibit in preceding end arms 24 from the bottom (lower part Fig. 1) of cylinder hose 41 to the upper of rod shaped support component 10
The height of wall portion 10a, the design space before capable of saving in end arms 24.It is therefore not necessary to make to be configured in telescopic arm 1 innermost
The sectional area of preceding end arms 24 be greater than required area, without make other arms 21~23 sectional area be greater than required area.Therefore, originally
The whole sectional area of telescopic arm 1 can be controlled the minimum limit in needs by the telescopic device 3 of embodiment.As a result, it is possible to
Make 1 lightweight of telescopic arm, additionally it is possible to control the manufacturing cost of telescopic arm 1.
In addition, it is reverse U shape that rod shaped support component 10, which is formed as cross sectional shape, in the telescopic device 3 of present embodiment
It is rodlike.Therefore, when telescoping cylinder 4 is flexible using the inside 10s of rod shaped support component 10, the right and left of front end can be limited
To the gap of, up and down direction.Therefore, before the telescopic device 3 of present embodiment can limit telescoping cylinder 4 with simple structure
The gap of end.
In addition, as shown in Figs. 8 to 11, base end side of the one end of rod shaped support component 10 in third arm 23 passes through
The connection shaft (component that fixed pin 101 and third arm connecting pin 110 are integrally formed) that left and right extends is fixed, and each third arm elongation is used
The other end of wirerope 62 is fixed on connection shaft by third arm elongation wirerope another side fixed part 13.Below for this
A little specific constitute are illustrated.
As shown in figure 8, each third arm elongation is arranged with wirerope another side fixed part 13 in each third arm elongation steel
The other end of cord 62.Further, each third arm elongation wirerope another side fixed part 13 is formed as cyclic annular, and has
The insertion hole 13a for allowing fixed pin 101 or so to insert.
It is separated in addition, rod shaped support component base end side support portion 16 is included in base end side of rod shaped support component 10 or so
And a pair of of the support plate 161,161 being provided for erecting；Link plate 162 of the frame between support plate 161,161；And setting is linking
The lower surface of plate 162, the return portion 163 for third arm diminution wirerope 82 to turn back.
Support plate 161,161 is formed as the base end side in rod shaped support component 10 from left and right sides wall portion 10b, 10b also backward
Side is prominent.The support plate 161,161 is formed with circular pin hole 161a, 161a.The left and right sides of return portion 163 is provided with holding
Three arms reduce retention groove 163a, 163a for using 82 fold-back state of wirerope.
Fixed pin 101 is formed as cylindric.The fixed pin 101 is fixed in multiple third arm elongations with wirerope another side
Portion 13 or so side by side and the state that is configured between support plate 161,161, as shown in figure 9, inserting each third arm elongation steel wire
The insertion hole 13a of rope another side fixed part 13 is fixed with wirerope another side fixed part 13 by each third arm elongation.Into one
In this state, the both ends of fixed pin 101 are inserted pin hole 161a, 161a and are mounted on step ground.Each third arm elongation is used as a result,
The other end of wirerope 62 is fixed pin 101 by third arm elongation wirerope another side fixed part 13 and fixes.
In addition, being installed on the both ends of fixed pin 101 of pin hole 161a, 161a across ring as shown in Fig. 8, Figure 10, Figure 11
End arms reduces axis hole 91a, the 91a for using pulley 91,91 before gasket S1, S2 of shape are inserted.As a result, preceding end arms reduce with pulley 91,
91 are rotatably supported at the both ends of fixed pin 101.
In addition, as shown in Figure 10, the base end part of sidewall portion 23a, 23a of third arm 23 be formed with lug boss 102,
(102).The lug boss 102, (102) are formed with raised hole 102a, (102a).In the protrusion hole, 102a, (102a) are inserted with
Three arm connecting pins 110,110.
The hole 101a of the insertion fixed pin 101 of third arm connecting pin 110,110.Fixed pin 101 is configured at third arm company as a result,
Pin 110,110 is tied, and is configured on same axis with third arm connecting pin 110,110, is integrally formed.
As a result, as shown in Figure 8 and Figure 11, the one end of rod shaped support component 10 passes through connection shaft (fixed pin 101 and the
110) three arm connecting pins 110 are fixed on the base end side (base end part of sidewall portion 23a, 23a) of third arm 23.In addition, this embodiment party
In formula, fixed pin 101 and third arm connecting pin 110,110 are configured on same axis, however, you can also not must on the same axis,
Third arm connecting pin 110,110 can also be configured in the position of the axis runout of self-retaining pin 101.
In the telescopic device 3 of the telescopic arm 1 of such embodiment, pass through connection shaft (fixed pin 101 and third arm
110) one end of rod shaped support component 10 is fixed on the base end side in third arm 23 by connecting pin 110, further by third
Arm elongation is fixed on connection shaft with the other end of wirerope 62.The one end of rod shaped support component 10 and the elongation of third arm as a result,
Connection shaft can be shared with the fixation member between wirerope 62, thus, it is possible to inhibit the installation space of fixation member.Therefore, energy
The design space in third arm 23 is enough saved, there is no need to make the sectional area of third arm 23 be greater than required area, without making it
The sectional area of its arm is greater than required area.Therefore, the sectional area that the telescopic device 3 of present embodiment can be whole by telescopic arm 1
Control the minimum limit in needs.In addition, as a result, it is possible to make 1 lightweight of telescopic arm, additionally it is possible to control the manufacture of telescopic arm 1
Cost.Further, because fixation member can be shared, the parts count of telescopic device 3 can be reduced, and then further
The manufacturing cost of ground control telescopic device 3.
In addition, the elongation of third arm is provided with third arm with the other end of wirerope 62 in the telescopic device 3 of present embodiment
Elongation wirerope another side fixed part 13, third arm elongation insert connection shaft simultaneously with wirerope another side fixed part 13
The other end is fixed on connection shaft.It therefore, can be by the another of third arm elongation wirerope 62 in the manufacture of telescopic arm 1
End is easily fixed to connection shaft.Therefore, the telescopic device 3 of present embodiment can be improved the work of the manufacturing operation of telescopic arm 1
Industry efficiency.
In addition, preceding end arms diminution pulley 91, (91) are set in the telescopic device 3 of the telescopic arm 1 of embodiment
Connection shaft.Preceding end arms reduces pulley 91 as a result, the fixation member of (91) can also share connection shaft, so can be further
The parts count of ground reduction telescopic device 3.Therefore, the telescopic device 3 of present embodiment can further control manufacturing cost.
In addition, as shown in figure 12, each third arm elongation is fixed on third arm elongation wirerope with one end of wirerope 62
One end fixed part 12, the third arm elongation wirerope one end fixed part 12 are set to the base end part 42a of cylinder rod 42.Below
The fixed structure is illustrated.
Third arm elongation wirerope one end fixed part 12, which includes, is set to each 62 one end of third arm elongation wirerope
One end fixation member 121；And it is set to the downside of the base end part 42a of cylinder rod 42 and fixes each one end fixation member
121 base end side fixed part 122.
Each one end fixation member 121 is formed as tubular, and the length direction A along telescopic arm 1 is configured.Each one end fixed part
The front end of part 121 is formed with opening portion (not shown).One end of each third arm elongation wirerope 62 is inserted into one from the opening portion
End side fixation member 121 is simultaneously fixed.The outer surface of each one end fixation member 121 is provided with threaded portion 121a.
The fixed plate 123 of downside of the base end side fixed part 122 with the base end part 42a for being set to cylinder rod 42 and multiple nuts
124。
Left and right is provided with multiple through holes (not shown) side by side in fixed plate 123.One end fixation member 121 is to insert
State insertion with each through hole.
Each nut 124 passes through each one end fixation member 121 in side rearward than fixed plate 123, with threaded portion 121a spiral shell
Line is connected and is withstood on behind fixed plate 123.By adjusting the fastening situation of each nut 124, each third arm elongation can be adjusted
With the tension of wirerope 62.
In the telescopic device 3 of such embodiment, each one end fixation member 121 is with base end side fixed part 122 with energy
Enough adjustment third arm elongations are threadedly coupled with the mode of the tension of wirerope 62.Therefore, it can easily be done adjustment third arm
The operation of the tension of elongation wirerope 62.Therefore, the telescopic device 3 of present embodiment can be improved third arm elongation steel wire
The operating efficiency of the adjustment operation of the tension of rope 62.
Then, it is illustrated with structure of the Figure 12 to Figure 14 to bottom end arm 21.Bottom 21a shape of the bottom end arm 21 in base end part
At there is inspection hole 211.The inspection is to use to adjust the tension of third arm elongation wirerope 62 again with hole 211
Component.
It is detachably blocked in addition, the inspection hole 211 is blocked component 200.The obstructing part 200, which has, blocks inspection
Look into the choke plate 201 with hole 211, the front for being set to 201 upper surface of choke plate prevents from bending and component 202 and is set to anti-
Only bend the reinforced member 203 of 202 rear surface of component.
In the state that choke plate 201 blocks inspection with hole 211, component 202 is bent with the front surface with fixed plate 123
The mode mutually withstood with the standing wall 212 in the front for the front surface for being configured at fixed plate 123 configures.In addition, erect wall 212 be
The bottom 21a of the base end part of bottom end arm 21 erects installation in the front of 123 front surface of fixed plate.
Reinforced member 203 is the component for reinforcing preventing from bending component 202.The reinforced member 203 prevents from bending component 202 certainly
Rear surface is rearward extended, and in the state of blocking inspection with hole 211, choke plate 201 is configured under fixed plate 123
Side.
As choke plate 201 blocks inspection hole 211, obstructing part 200 prevents press-bending component 202 and fixed plate
It is withstood before 123 with standing wall 212.Even if third arm elongation 62 quilt of wirerope when cylinder hose 41 extends in this state
It stretches forwards, prevents press-bending component 202 from also pressing against fixed plate 123 and absorbing the tension of third arm elongation wirerope 62, institute
The press-bending of cylinder rod 42 can be prevented.
Further, it prevents from bending component 202 because being reinforced the reinforcement of component 203, reliably pushes down fixed plate 123
And the tension that wirerope 62 is used in the elongation of third arm is reliably absorbed, it is reliably prevented from the press-bending of cylinder rod 42.
More than, embodiments of the present invention are shown, present embodiment does not limit the contents of the present invention.As long as in addition, not having
Have and be detached from the scope of the claims of the invention, there can be various changes.
For example, in the present embodiment, preceding end arms diminution pulley 91, (91) to be configured to the base of rod shaped support component 10
End side, but also can be only fitted to the base end side in the third arm 23 of fixed rodlike support member 10.
In addition, in the present embodiment, by each preceding end arms elongation with the allocation position of pulley 71 to pass through rotation center 71s
The mode that is located near the central axis 10t of rod shaped support component 10 of horizontal line 71t set, can also be with rod shaped support portion
The central axis 10t of part 10 is consistently set.
In addition, in the present embodiment, illustrating the feelings that telescopic device of the invention is suitable for the telescopic arm of 4 grades of formulas
Condition.But as long as telescopic arms more than 4 grades of formulas of telescopic device of the invention can be applicable in.Specifically, telescopic device is constituted
Telescoping cylinder used for lower 2 grades of later arms of end arms before flexible, constitute the telescoping mechanism of telescopic device in order to before flexible
End arms and its lower 1 grade arm and use.
In addition, when telescopic device of the invention is suitable for the telescopic arm of 4 grades of formulas or more, for extending lower the 1 of preceding end arms
With pulley, the mode of end arms before being located at the front end side of telescoping cylinder of front end arm side and being built in is configured for the elongation of the arm of grade.Further
Ground, preceding end arms diminution wheels arrangements are in base end side (such as the cardinal extremity of rod shaped support component in lower 1 grade of the arm of preceding end arms
Side), the diminution wheels arrangements for lower 1 grade of the arm of end arms before reducing are in the base end side in lower 2 grades of the arm of preceding end arms.
In addition, in the present embodiment, rod shaped support component 10 to be configured to the top of telescoping cylinder 4, but it is not limited to this,
Such as on the contrary, rod shaped support component 10 can also be configured to the lower section of telescoping cylinder 4.In this case, rod shaped support component 10
Cross sectional shape be formed as U-shaped, the lower part 61b (referring to Fig. 8, Fig. 9) of end arms elongation pulley 61 before 10s is configured in inside.
In addition, in the present embodiment, the component of shape with the end having been used as rod shaped support component 10, can be used
Rod shaped support component does not have shape with the end, such as rod shaped support component has by the shape of left and right segmentation.In this case, even if
It is the structure of a part overlapping of 1 grade of arm elongation pulley under the inside of rod shaped support component from side observation, it can also be with
It says in a part of the inside of rod shaped support component configured with lower 1 grade of pulley elongation pulley.
The cross reference of association request
The application is based on Patent 2014-124211 application, 2014 proposed to the Japanese Patent Room on June 17th, 2014
Patent 2014-185635 application, on the October 20th, 2014 proposed to the Japanese Patent Room on September 11, mentions to the Japanese Patent Room
The Patent 2014-213905 that Patent 2014-213904 out is applied and proposed to the Japanese Patent Room on October 20th, 2014
Number application CLAIM OF PRIORITY, the entire disclosure by reference is completely introduced in this specification.
Claims (2)
1. a kind of telescopic device of telescopic arm, the telescopic arm of 4 grades of formulas for being set to Work machine stretches, and feature exists
In:
1 telescoping cylinder is included, before which is configured at when full reduced in end arms and lower 2 grades of the arm for the preceding end arms of stretching；
And telescoping mechanism, the expanding-contracting action of the telescoping mechanism and the telescoping cylinder link, preceding end arms described in simultaneous retractable and its lower 1 grade
Arm；
The telescoping mechanism has rod shaped support component, and the one end of the rod shaped support component is fixed in lower 1 grade of the arm
Base end side and be configured in the preceding end arms, by the telescoping cylinder for the full reduced state being retracted in advance is stretched and to institute
The front end side for stating telescopic arm is mobile, due to the telescoping cylinder for stretching state entirely being stretched in advance is retracted and to the telescopic arm
Base end side it is mobile, which is not flexible component, which is formed as configuring in its front end side
There is the preceding end arms elongation pulley for extending the preceding end arms and be built in the preceding end arms,
The preceding end arms elongation pulley that configures of front end side pair of right and left ground that pulley is in the rod shaped support component, in order to
The preceding end arms elongation wirerope for making the preceding end arms elongation together with end arms elongation pulley before a pair and using passes through institute
The front end side for stating telescoping cylinder is hung on end arms elongation pulley before a pair, and the base end side in the preceding end arms is fixed at both ends.
2. a kind of telescopic device of telescopic arm, the telescopic arm of 4 grades of formulas for being set to Work machine stretches, and feature exists
In:
1 telescoping cylinder is included, before which is configured at when full reduced in end arms and lower 2 grades of the arm for the preceding end arms of stretching；
And telescoping mechanism, the expanding-contracting action of the telescoping mechanism and the telescoping cylinder link, preceding end arms described in simultaneous retractable and its lower 1 grade
Arm；
The telescoping mechanism has rod shaped support component, and the one end of the rod shaped support component is fixed in lower 1 grade of the arm
Base end side and be configured in the preceding end arms, by the telescoping cylinder for the full reduced state being retracted in advance is stretched and to institute
The front end side for stating telescopic arm is mobile, due to the telescoping cylinder for stretching state entirely being stretched in advance is retracted and to the telescopic arm
Base end side it is mobile, which is not flexible component, which is formed as configuring in its front end side
There is the preceding end arms elongation pulley for extending the preceding end arms and be built in the preceding end arms,
The preceding end arms diminution wheels arrangements of the preceding end arms will be used to reduce in the base end side in lower 1 grade of the arm, institute
The base end side of rod shaped support component is stated,
The preceding end arms diminution pulley that configures of base end side pair of right and left ground that pulley is in the rod shaped support component, in order to
The preceding end arms diminution wirerope for making the preceding end arms reduce and use together with end arms diminution pulley before a pair passes through institute
The front end side for stating telescoping cylinder is hung on end arms diminution pulley before a pair, and the base end side in the preceding end arms is fixed at both ends.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014124211A JP6390058B2 (en) | 2014-06-17 | 2014-06-17 | Telescopic boom telescopic device |
| JP2014-124211 | 2014-06-17 | ||
| JP2014-185635 | 2014-09-11 | ||
| JP2014185635A JP6390059B2 (en) | 2014-09-11 | 2014-09-11 | Telescopic boom telescopic device |
| JP2014-213905 | 2014-10-20 | ||
| JP2014-213904 | 2014-10-20 | ||
| JP2014213904A JP6405879B2 (en) | 2014-10-20 | 2014-10-20 | Telescopic boom telescopic device |
| JP2014213905A JP6405880B2 (en) | 2014-10-20 | 2014-10-20 | Telescopic boom telescopic device |
| CN201580030872.5A CN106536398B (en) | 2014-06-17 | 2015-04-30 | The telescopic device of telescopic arm |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580030872.5A Division CN106536398B (en) | 2014-06-17 | 2015-04-30 | The telescopic device of telescopic arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108439234A CN108439234A (en) | 2018-08-24 |
| CN108439234B true CN108439234B (en) | 2019-09-27 |
Family
ID=54935263
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810471017.3A Active CN108439234B (en) | 2014-06-17 | 2015-04-30 | The telescopic device of telescopic arm |
| CN201580030872.5A Active CN106536398B (en) | 2014-06-17 | 2015-04-30 | The telescopic device of telescopic arm |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580030872.5A Active CN106536398B (en) | 2014-06-17 | 2015-04-30 | The telescopic device of telescopic arm |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101891909B1 (en) |
| CN (2) | CN108439234B (en) |
| WO (1) | WO2015194268A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709013B (en) * | 2018-07-31 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Telescopic boom system and engineering machinery |
| CN109319700A (en) * | 2018-11-01 | 2019-02-12 | 尹宏 | A kind of telescopic device and lifting device |
| CN110181553B (en) * | 2019-05-20 | 2021-11-02 | 广东博鼎建筑科技有限公司 | Telescopic arm assembly and building device |
| US11614199B2 (en) | 2019-05-28 | 2023-03-28 | Brunswick Corporation | Vertically adjustable pedestal for boat accessory |
| CN110775858B (en) * | 2019-11-07 | 2020-05-12 | 成都理工大学 | Single-cylinder gear rack multi-stage telescopic mechanism |
| CN113729743B (en) * | 2021-09-13 | 2024-03-08 | 威海威高瑞影医疗科技有限公司 | Horizontal telescopic arm for moving DR |
| CN116040508B (en) * | 2022-12-02 | 2023-11-03 | 河南骏通车辆有限公司 | Rope extension structure, telescopic boom crane and hoisting method thereof |
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| JP2006264797A (en) * | 2005-03-22 | 2006-10-05 | Hitachi Constr Mach Co Ltd | Telescopic boom device |
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| DE202008008173U1 (en) * | 2008-06-18 | 2009-11-05 | Liebherr-Werk Ehingen Gmbh | Telescopic crane jib |
| DE102008034676B4 (en) * | 2008-07-25 | 2016-11-24 | Liebherr-Werk Ehingen Gmbh | Method for mounting a telescopic crane jib and apparatus for carrying out the method |
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2015
- 2015-04-30 CN CN201810471017.3A patent/CN108439234B/en active Active
- 2015-04-30 CN CN201580030872.5A patent/CN106536398B/en active Active
- 2015-04-30 WO PCT/JP2015/062972 patent/WO2015194268A1/en active Application Filing
- 2015-04-30 KR KR1020167035073A patent/KR101891909B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217987A (en) * | 1978-12-01 | 1980-08-19 | Harnischfeger Corporation | Actuator for telescopic boom |
| JPH0416791U (en) * | 1990-06-02 | 1992-02-12 | ||
| JPH1179670A (en) * | 1997-09-11 | 1999-03-23 | Tadano Ltd | Simultaneous extending/contracting mechanism of telescopic boom |
| CN102381642A (en) * | 2011-11-29 | 2012-03-21 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN202465131U (en) * | 2011-11-30 | 2012-10-03 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108439234A (en) | 2018-08-24 |
| CN106536398A (en) | 2017-03-22 |
| KR20170008269A (en) | 2017-01-23 |
| CN106536398B (en) | 2019-07-12 |
| KR101891909B1 (en) | 2018-08-24 |
| WO2015194268A1 (en) | 2015-12-23 |
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