JPH0355174U

JPH0355174U -

Info

Publication number: JPH0355174U
Application number: JP11338989U
Authority: JP
Priority date: 1989-09-29
Filing date: 1989-09-29
Publication date: 1991-05-28

Description

[Brief explanation of drawings]

第１図は、本考案の安全装置を備えた空気圧式
釘打機の縦断面図、第２図は、第１図の空気圧式
釘打機の外観図、第３図は、第１図における−
線断面図、第４図は、第３図における−線
断面図、第５図は、第４図における−線断面
図であつて、釘チヤツクがアンロツクされている
状態を示し、第６図は、第５図と同様の断面図で
あつて、釘チヤツクがロツクされている状態を示
し、第７図は、第１図におけるタイミングバルブ
近傍の拡大図であるが、逆止弁の一部は設計変更
されている。第８図〜第１３図は、本考案の安全
装置の動作図であつて、第８図は、該安全装置の
初期状態を示し、第９図は、トリガロツクレバー
がトリガレバーをロツクする第１位置にある状態
を示し、第１０図は、トリガロツクレバーがトリ
ガレバーを解放する第２位置にある状態を示し、
第１１図は、トリガラツチレバーがトリガレバー
をラツチした状態を示し、第１２図は、第１１図
の状態からトリガレバーが解放された状態を示し
、第１３図は、第１２図の状態からトリガラツチ
レバーがトリガレバーをアンラツチした状態を示
す。１７……トリガバルブ、５１……トリガレバー
、５８……トリガロツクレバー、６０……トリガ
ラツチレバー。 Fig. 1 is a longitudinal sectional view of a pneumatic nailer equipped with the safety device of the present invention, Fig. 2 is an external view of the pneumatic nailer of Fig. 1, and Fig. 3 is a view of the pneumatic nailer of Fig. 1. −
4 is a sectional view taken along the - line in FIG. 3, FIG. 5 is a sectional view taken along the - line in FIG. 4, showing the state in which the nail chuck is unlocked, and FIG. , is a sectional view similar to FIG. 5, showing a state in which the nail chuck is locked, and FIG. 7 is an enlarged view of the vicinity of the timing valve in FIG. 1, but a part of the check valve is The design has been changed. 8 to 13 are operation diagrams of the safety device of the present invention, in which FIG. 8 shows the initial state of the safety device, and FIG. 9 shows the state in which the trigger lock lever is locked. Figure 10 shows the trigger lock lever in the second position releasing the trigger lever;
11 shows a state in which the trigger lever is latched, FIG. 12 shows a state in which the trigger lever is released from the state in FIG. 11, and FIG. 13 shows a state in which the trigger lever is released from the state in FIG. 12. This shows the state in which the trigger lever is unlatched. 17...Trigger valve, 51...Trigger lever, 58...Trigger lock lever, 60...Trigger lock lever.

Claims

[Scope of utility model registration request]

In a safety device for a pneumatic nailer, which has a trigger lever that is manually pulled and released, and a trigger valve that is operated by the trigger lever to issue a nailing command pneumatic signal and a nailing end pneumatic signal. , manually between a first position where the trigger lever contacts the trigger lever and prevents the trigger lever from rotating when the trigger lever is pulled, and a second position where the trigger lever is allowed to rotate when the trigger lever is pulled and released. There is a trigger lock lever that can be rotated regardless of the position of the trigger lever, and a trigger lock lever that is latched to the trigger lock lever and when the trigger lock lever is in the second position and the trigger lever is rotated to the limit of pulling operation. 1. A safety device for a pneumatic nailing machine, comprising a trigger lock lever which is rotated in the unlatching direction relative to the trigger lock lever and is always biased so as to latch the trigger lever.