CN201483583U - Gasoline-powered chain saw buffering starter gear - Google Patents
Gasoline-powered chain saw buffering starter gear Download PDFInfo
- Publication number
- CN201483583U CN201483583U CN2009201896340U CN200920189634U CN201483583U CN 201483583 U CN201483583 U CN 201483583U CN 2009201896340 U CN2009201896340 U CN 2009201896340U CN 200920189634 U CN200920189634 U CN 200920189634U CN 201483583 U CN201483583 U CN 201483583U
- Authority
- CN
- China
- Prior art keywords
- starting
- chain saw
- rope sheave
- rope
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a gasoline-powered chain saw buffering starter gear comprising a starter shell, a resetting coil spring, a coil spring box, a starting digging rope, a starting rope wheel, a shifting cover and a buffer spring, wherein the starter shell consists of a U-shaped cylinder and a shell bottom surface extending towards two sides along the bottom end of the cylinder; the coil spring box is arranged in the shell bottom surface and internally fixed with the resetting coil spring which is connected with the starting rope wheel; the starting rope wheel is internally provided with the starting digging rope; the shifting cover is covered on the starting rope wheel; and the buffer spring is arranged in a cavity formed by a groove arranged on the starting rope wheel and a groove arranged on the shifting cover. When pulling the starting digging rope, a pulling force is conducted to the buffer spring by the starting rope wheel through the rope, and then conducted to the shifting cover, thus further acting on a crankshaft of the gasoline-powered chain saw. The buffer spring is used for delivering the starting pulling force, thus effectively eliminating an impact force on the starter gear.
Description
Technical field
The utility model relates to a kind of starting drive, relates in particular to a kind of chain saw buffer starting device, can make the chain saw smooth starting.
Background technology
With the chain saw of general small-size two-stroke gasoline engine as power, its Starting mode is and pulls the recoil startup in the market.Must overcome the interior gas pressure of cylinder during operator's hand pull starting-up bent axle is rotated, thereby meet the requirements of fire speed.In overcoming cylinder pressure resistance process, piston is required when lower dead center to overcome pressure minimum, the required pressure maximum that overcomes when top dead centre; And the desired fire speed of ato unit generally will reach 800rpm could normal ato unit, thus the operator when starting gasoline engine, big to the impulsive force of whole starting drive, stay cord has tangible one one phenomenon.Thus to the material requirements height of starting drive, and starting drive is also short service time, maintenance or change frequent.
Summary of the invention
The purpose of this utility model provides a kind of chain saw buffer starting device, improves current chain saw starting drive, and buffer unit is set therein, makes the chain saw smooth starting.
The technical solution of the utility model is:
A kind of chain saw buffer starting device comprises the starter shell, the disc spring that resets, disc spring box, starts stay cord, starts rope sheave, movable cover and buffering spring.The starter shell is made of the U type cylinder and the shell bottom surface of extending laterally along the cylinder bottom.The disc spring box is arranged in the described shell bottom surface, be fixed with the disc spring that resets in the disc spring box, the disc spring that resets links to each other with the startup rope sheave, start in the rope sheave and be provided with the startup stay cord, movable cover is buckled in the startup rope sheave, is provided with buffer spring in the cavity that the groove that is provided with on groove that is provided with on described startup rope sheave and the described movable cover forms.
The groove of described startup rope sheave is the U type.
Described movable cover groove is the U type.
Preferably, the U type groove of described startup rope sheave is relative with the U type groove of described movable cover and form a cavity, and described buffer spring is arranged in this cavity.
When pulling started stay cord, pulling force conducted to buffer spring by rope through starting rope sheave, reaches movable cover again, thereby further acts on the bent axle of chain saw.Transmit the startup pulling force by buffer spring, effectively eliminate impulsive force starting drive.
The beneficial effects of the utility model are:
Chain saw buffer starting device described in the utility model, it is provided with buffer spring between startup rope sheave and movable cover, start the effect of pulling force to realize transmission, and effectively elimination makes engine start steady to the impulsive force of starting drive.
Description of drawings
Fig. 1 is the utility model chain saw buffer starting device one cross-sectional view.
The specific embodiment
Further specify architectural feature of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model chain saw buffer starting device, comprise starter shell 1, the disc spring 2 that resets, disc spring box 3, start stay cord 4, start rope sheave 5, movable cover 6 and buffering spring 7.
Starter shell 1 is made of the U type cylinder 11 and the shell bottom surface 12 of extending laterally along the cylinder bottom, and shell bottom surface 12 is provided with disc spring box 3, is fixed with the disc spring 2 that resets in the disc spring box 3, is provided with the startup rope sheave 5 that starts stay cord 4 and links to each other with the disc spring 2 that resets.Movable cover 6 is buckled in and starts on the rope sheave 5, and starting on the rope sheave 5 has a U type groove 51, and a U type groove 61 is arranged on the movable cover 6, and groove 61 and groove 51 are relative and form a cavity, and buffer spring 7 is arranged in this cavity.
The bent axle 8 of chain saw matches with movable cover 6 in the U type cylinder 11 that is arranged at starter shell 1, and when pulling started stay cord 4, pulling force conducted to buffer spring 7 by stay cord 4 through starting rope sheave 5, reaches movable cover 6 again, thereby further acts on the bent axle 8 of chain saw.Transmit the startup pulling force by buffer spring 7, effectively eliminate impulsive force starting drive.
Claims (4)
1. a chain saw buffer starting device is characterized in that, comprise the starter shell, the disc spring that resets, disc spring box, start stay cord, start rope sheave, movable cover and buffering spring, wherein,
The starter shell is made of the U type cylinder and the shell bottom surface of extending laterally along the cylinder bottom;
The disc spring box is arranged in the described shell bottom surface, is fixed with the described disc spring that resets in the disc spring box;
Start rope sheave, be provided with described startup stay cord in it, and link to each other with the described disc spring that resets, described movable cover is buckled in and starts on the rope sheave;
Buffer spring is arranged in the cavity that groove that groove that described startup rope sheave is provided with and described movable cover be provided with forms.
2. chain saw buffer starting device according to claim 1 is characterized in that the groove that described startup rope sheave is provided with is the U type.
3. chain saw buffer starting device according to claim 1 is characterized in that the groove that described movable cover is provided with is the U type.
4. chain saw buffer starting device according to claim 1, the U type groove that it is characterized in that described startup rope sheave is relative with the U type groove of described movable cover and form a cavity, and described buffer spring is arranged in this cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201896340U CN201483583U (en) | 2009-07-23 | 2009-07-23 | Gasoline-powered chain saw buffering starter gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201896340U CN201483583U (en) | 2009-07-23 | 2009-07-23 | Gasoline-powered chain saw buffering starter gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483583U true CN201483583U (en) | 2010-05-26 |
Family
ID=42422479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201896340U Expired - Lifetime CN201483583U (en) | 2009-07-23 | 2009-07-23 | Gasoline-powered chain saw buffering starter gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201483583U (en) |
-
2009
- 2009-07-23 CN CN2009201896340U patent/CN201483583U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |