JPS5824002A - Vibration-proof handle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

This disclosure relates to a vJ castle handle for a hand-held working machine that utilizes vibration. Examples of hand-held working machines that use 4/11 vibration include titanpas and condensers used for compacting railway track beds, and concrete vibrators used for pouring concrete in civil engineering and construction work. ′
However, in these hand-held working machines, the handle and the lifting part are designed to minimize the vibrations and knocks transmitted from the handle gripped by the worker during work. In between, vibration isolation mechanisms using various vibration isolation members are used. No. 10 Materials and vibration-proofing members include metal springs, vibration-proofing rubber, etc., used alone or in combination. However, these metal springs and anti-vibration rubber have linear spring characteristics with a constant spring constant, so the smaller the spring constant, the greater the vibration-isolating effect. In addition, the vibration constant can be made very small, and the vibration transmission is different depending on the working conditions, for example, when a hand-held working machine is placed in the air or when it is inserted into roadbed gravel, concrete, etc. Since the rate is changing, considerable vibration is generated from the f1111 vibration part through the vibration isolation mechanism) and the steering wheel.
The impact is transmitted. As a result, the wave force on the worker increases, making it difficult for the worker to withstand long hours of work, resulting in a decrease in work efficiency. In view of the above points, the present invention has been developed by attaching two anti-vibration members having a large anti-vibration effect, such as Neidhardt dampers having non-linear spring characteristics, to the handle and the vibration generating part mounting portion, and l attached to the vibration part mounting part
! 7j Vibration member upper member links are connected by two sets of link mechanisms connected via vibration isolating members, and vibration isolating members are installed in three stages.It has good operability and does not cause vibration even if the working conditions change. The anti-vibration rim protects against the vibrations and shock effects transmitted from the part to the worker via the handle, reducing the stress on the worker, making it possible to withstand long hours of work, and improving work efficiency. The present invention provides a vibration-proof nozzle for a hand-held work machine that can be used for hand-held work. Hereinafter, one embodiment of the present invention will be described in detail with reference to FIG. As an example, a vibration-proof nodle using night-ruto-damba as a vibration-isolating member is attached to the titanpa (the row of bolts is shown). A front view of the titanpa with the anti-vibration/% bundle of one embodiment of the present invention, Figure 3 is a view in the direction of the ■ arrow in Figure 1i142, and Figure 4 is a view in the direction of the ■ arrow in Figure 2. As shown in , the Neidhardt damper 1 is a Neidhardt rubber spring (registered trademark of Takarae Naitai Co., Ltd.), and includes an outer casing 2, an inner shaft 4 having a square hole 3 in the center, an outer casing 2, and an inner shaft. It is composed of a plurality of circular rubbers 5 (four rubbers are shown in the figure) inserted between the Neidhardt dampers 1 and 4. Now, they are compressed while rolling between the 4 of the Neidhardt damper 1. Non-linear spring characteristics are used. Therefore, by changing the material, size and number of the circular rubber 5, the shape of the inner shaft 4, etc., and appropriately selecting the non-linear spring characteristics, the confection making conditions will change. FIG. 2 shows that the P7J of the present invention is attached to the vibration generating part 13 consisting of the vibration motor 11 and the beater 12 having the lead wire 10. This figure shows the titan tamper 15 with the swing handle 14 attached. The vibration part mounting part 16 includes vibration part mounting seats 19 and 19' to which the vibration part 13 is attached, and vibration part mounting seats 19 and 19'.
Neidhardt tamper 2 attached to the upper end of each
The handle 17 consists of a middle part 22 with a Neidhardt tamper 21 and 21' removed, grip parts 23 and 24 connected to both ends of the middle part 220, and a handle 17 built in the middle part 22. It also serves as a switch 25 for starting and stopping the vibration motor 11.
This switch 25 is connected to the outlet #M10 of the vibration motor 11 and a cable 26 for connecting the 'a source. The link mechanism 18 consists of an upper link 27, a lower link 28, and a night bolt damper 29, as shown in FIGS. 2 and 3. The upper slot 27 is the link 30
The upper end of the link 3θ has a knob attached to the handle 17.
5- Ithard damper 21 +lj,'l l! One end of the hollow square shaft 32 fits into the square hole of No. 11, and the hollow square shaft 32 fits into the square hole of the inner shaft of the Neidhardt damper 29 at the lower end.
One end of the link 31 is fixed to each other, and the upper end of the link 31 is provided with a square hole into which the free end of the hollow square shaft 32 is removably fitted, and the lower end of the link 31 is provided with a square hole into which the free end of the hollow square shaft 33 is removably fitted. It is being Therefore, the upper end of the upper link 27 is connected to the link 30.
2 spacing pieces 34. Link 31. A through port 35 passing through the hollow hole of the hollow square shaft 32, a washer 36, and a naso port 37
is connected to the Neidhardt tamper 21, and the lower end is
Link 30. 2 spaced pieces, link 31, middle wall corner shaft 3
It is connected to the Neidhardt damper 29 by a through port 39, a washer 40, and a nut 41 that pass through the hollow holes of 2. The lower link 28 consists of a link 42 and a pair of links 43. The upper end of the link 42 is fixed to the outer casing of the Neidhardt damper 29 by welding or the like, and a hole 45 for mounting the link 43 is provided in the middle part. is provided at the lower end of the vibration generating part mounting seat 19 of the vibration generating part mounting part 16.
One end of the hollow square shaft 446- which fits into the square hole of the 11th shaft is fixed, and a hole 46 for attachment to the link 42 is provided in the upper y part of the link 43, and the lower i'1lff f
il+ is provided with a square hole into which the free end of the hollow square shaft 44 is removably fitted. Thus, the upper end of the lower link 28 is secured to the outer casing of the Neidhardt tamper 20 by the upper end of the link 42, and the lower end is secured to the outer casing of the Neidhardt tamper 20 by the upper end of the link 42.
The spacer piece 47, the link 43, the hole through the hollow square shaft 44, the hole 48%, the washer 49, and the hole 50. There is. The link mechanism 181 connects the night tip damper 21' of the needle 17 and the night tip damper 201 of the vibration control section 16, and has exactly the same configuration as the link mechanism 18 as shown in FIG. Since it has a link mechanism 18,

[The city of color 1 (in the case of the member of the link mechanism 18, it is indicated by adding °“・°゛ to -IJ')
shall be. Regarding the titanpa (see Fig. 2) in which the vibration generating part 13 is added to the cutting nozzle 14 which has one or more configurations, the effect of the anti-vibration handle 14 will be examined. Connect the cable 26 to the power supply, close the switch 25,
When activating the vibrating motor 1 and thrusting the vibrating beater 12 into the road bed gravel of the sleeper descent 1 on the track to compact the road bed, the worker usually...
3, 24 with both hands, push down the grip part 24, lift the grip part 23, and push the nodle 17 in the direction of arrow 5 in order to plunge the beater 12 into the road bed gravel on the underside of the sleepers (not shown).
1, the upper link 27 rotates in the direction of arrow 52, the lower link 28 rotates in the direction of arrow 53, the upper link 271 rotates in the direction of arrow 52', and the lower link 281 rotates in the direction of arrow 52'. 531, respectively. Therefore, Neidhardt damper 20°20', 21
, 21', 29, and 29' are subjected to rotational force,
As mentioned above, the vibrations and vibrations from the vibration motor 11 and the beater 12 are generated by the Neidhardt dampers 20, 20', 2.
9, 29', 21, 21' provide three stages of vibration isolation and buffering, respectively, and grips 23, 24 of the handle 17.
The vibrations and shocks transmitted to the machine become extremely small. Also,
Even if the beater 12 goes deep into the roadbed gravel and its vibrations are restrained, or even if the roadbed is solidified and the beater 12 vibrates in both directions, the Neidhardt dampers 20, 20'
, 21, 21', 29. If the nonlinear spring characteristics of 291 are appropriately selected, the spring constant of the Neidhardt tamper can be changed by operating the handle 17 and changing the rotation angle of the handle 170. Because I can)
The handle 17σ) can prevent and dampen large vibrations and knock-down vibrations transmitted to the grips 23 and 24. In addition, in cases such as compactors and concrete breakers, where the rotary handle is rarely rotated, a vibration isolating member with linear spring characteristics may be used. 20, 20'
, 21 , 21' , 29 , 29' instead of
Inter-mold anti-vibration rubber may also be used. As described above, the vibration isolation spindle of the present invention includes two vibration isolation members attached to the spindle and two l! Jj & members are connected by two sets of link mechanisms in which two links are connected via a vibration isolating member,
Since it is vibrated in 3 stages, it is possible to transfer the transmission from the vibration generating part to the handle. It is possible to oppose. Therefore, no matter what type of hand-held vibrating machine is used, the effects are great, such as reducing worker fatigue, allowing long hours of work, and increasing work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the Neidhardt tamper, Fig. 2 is a front view of the tamper to which an embodiment of the present invention is attached, Fig. 3 is a view from the ■ arrow in Fig. 2, and Fig. 4 is the - It is an arrow view. 1. Neidhardt damper, 13. Excitation part, 14.
・Vibration-proof handle, 16... Vibration part mounting part, 17...
Handle, 18, 18'...Link mechanism, 20, 2
0', 21, 21', 29. 291...Neidhard damper Patent applicant Shibaura Seisakusho Co., Ltd. 10- Figure 3 Rod diagram

Claims (3)

[Claims] (1) A no-endoru with two Ph l dragon members attached,
The two vibration isolating members are attached to the vibration generating part holding part, the anti-vibration member +3 attached to the handle, and the vibration prevention member attached to the vibration generating part mounting part, 2y11. link to
A swing handle characterized by being connected by two sets of link mechanisms connected by a removable metal member. (2) The anti-vibration handle according to claim 1, wherein the anti-vibration capital H is a Neidhardt damper. (3) The anti-vibration handle according to claim 1, in which the anti-vibration member is made of inter-mold rubber.