CN2543646Y

CN2543646Y - Reciprocative saw

Info

Publication number: CN2543646Y
Application number: CN 02221060
Authority: CN
Inventors: 张斌
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2002-05-27
Filing date: 2002-05-27
Publication date: 2003-04-09
Anticipated expiration: 2012-05-27

Abstract

The utility model relates to a reciprocative saw. A separating plate supporting mechanism comprises a receiving hole[17], a bar[4] of separating plate, a separating plate[3] and a locking component; the locking component at least includes a plurality of sunken parts at intervals, a locking protruded plate, a cam[13] and an elastic pressing plate[10]. The cam[13] and the elastic pressing plate[10] are respectively arranged at the two sides of the bar[4] of the separating; when the locking components is in the locking condition, the bar[4] of the separating plate is clamped by the pressing plate[10] and the cam[13] from both sides. The groove on the bar of separating plate is matched with the position protruded plate, thus, the length of the part of the bar of separating plate stretching out of the machine head can be ensured and limited; the elasticity of the elastic pressing plate can automatically compensate the gap, so that the bar of separating plate is always in the locking condition, and the bar of separating plate will not vibrate in use.

Description

Reciprocating saw

Technical field

The utility model relates to a kind of reciprocating electric tools.

Background technology

U.S. Pat 6272757 of the prior art discloses a kind of reciprocating saw, it comprises a housing, the head section of housing is provided with the saw blade clamper, head section also is provided with a receiver hole that keeps equality to place with the saw blade clamper, a guiding plate stem is inserted in the described receiver hole to realize gliding motility herein, this bar has three locking slots, a jam plate of laterally placing can laterally move in this head, in the time of in jam plate is inserted in a locking slot, can guarantee that above-mentioned guiding plate stem is in a position.By the locking slot of jam plate pinning diverse location, make the guiding plate stem stretch out the adjustable length of head section, and then be applicable to the workpiece of reciprocating saw cutting unlike material.Because the guiding plate stem only cooperates locking with jam plate by concavo-convex, and guide post is stressed in the course of the work very big, therefore leads can produce the gap owing to wearing and tearing between plate stem and the jam plate after long-time the use, the plate stem that causes leading rocks when work.

Summary of the invention

The purpose of this utility model is to provide a kind of and can locks guiding plate stem and head section firmly, reliable reciprocating saw.

The technical solution of the utility model is: a kind of reciprocating saw comprises at least:

A housing that has head section;

The reciprocating saw blade clamping device of energy, it is arranged on the head section;

A baffle plate supporting mechanism, it is arranged on the head section, and described baffle plate supporting mechanism comprises

A receiver hole, it is opened on head section;

A damper rod, it is inserted in the described receiver hole;

A baffle plate, the outer end of it and damper rod is pivotally connected;

A latch assembly comprises at least

A plurality of depressions separately, they are opened on damper rod;

A lock tab, it is arranged on the head section;

Described latch assembly is damper rod and chain-drive section phase-splitting locking, when described latch assembly is in locking state, described lock tab is inserted in the depression, when described latch assembly is in released state, described lock tab breaks away from described depression, damper rod can move axially in receiver hole

Described latch assembly also comprises

A cam, this cam are provided with the operation spanner that radially extends, and described cam is connected by the camshaft phase pivot with head section;

A flexible compact heap;

Described cam and flexible compact heap are arranged at the both sides of described damper rod respectively; When described latch assembly was in locking state, described damper rod was clamped by compact heap and cam subtend.

The utility model compared with prior art has following advantage:

Under locking state, groove on the damper rod matches with lock tab, make that the length outside the head section of stretching out of damper rod is determined and limited, make that damper rod is clamped and be fixed on head section by cam and flexible compact heap this moment, even the gap of wearing and tearing direction recess and lock tab having occurred occurs, make damper rod be in clamped state all the time owing to the elasticity of flexible compact heap can compensate its gap automatically, damper rod can not rock when then using yet.

Description of drawings

Accompanying drawing 1 is overall structure figure of the present utility model;

When accompanying drawing 2 locks for latch assembly, damper rod and main cutaway view of being connected of head section (when alignment pin matches with the 3rd locating hole);

Accompanying drawing 3 is the A-A direction cutaway view of accompanying drawing 2;

When accompanying drawing 4 is the latch assembly release, damper rod and main cutaway view of being connected of head section (when alignment pin matches with the 3rd locating hole);

When accompanying drawing 5 locks for latch assembly, damper rod and main cutaway view of being connected of head section (when alignment pin matches with second locating hole);

When accompanying drawing 6 locks for latch assembly, damper rod and main cutaway view of being connected of head section (when alignment pin matches with first locating hole); Wherein:

[1], housing; [2], saw blade; [3], baffle plate; [4], damper rod; [5], perforate; [6], first locating hole; [7], second locating hole; [8], head section; [9], alignment pin; [10], compact heap; [11], disk spring; [12], disk spring groove; [13], cam; [14], camshaft; [15], compact heap end; [16], operation spanner; [17], receiver hole; [18], baffle plate rotating shaft; [19], the 3rd locating hole; [20], spacing back-up ring;

The specific embodiment

Referring to a kind of reciprocating saw of accompanying drawing, comprise at least:

A housing [1] that has head section [8];

The reciprocating saw blade clamping device of energy, it is arranged on the head section [8];

A baffle plate supporting mechanism, it is arranged on the head section [8], and described baffle plate supporting mechanism comprises

A receiver hole [17], it is arranged essentially parallel to the axial setting of saw blade [2], and opens on head section [8];

A damper rod [4], it is inserted in the described receiver hole [17];

A baffle plate [3], the outer end of it and damper rod [4] is pivotally connected, and in the accompanying drawing, pivot is baffle plate rotating shaft [18];

A latch assembly comprises at least

A plurality of depressions separately, they are opened on damper rod [4];

A lock tab, it is arranged on the head section [8];

Described latch assembly locks damper rod [4] mutually with head section [8], when described latch assembly is in locking state, described lock tab is inserted in the depression, which depression is described lock tab be inserted in needs to decide according to the material of the workpiece that is cut, be inserted in the different depressions can so that the length of stretching out head section [8] of damper rod [4] adjusted.As shown in Figure 4, when described latch assembly was in released state, described lock tab broke away from described depression, and damper rod [4] can move axially in receiver hole [17],

Described latch assembly also comprises

A cam [13], this cam [13] are provided with the operation spanner [16] that radially extends, and this operation spanner [16] can rotate by driving cam [13], and described cam [13] is connected by camshaft [14] phase pivot with head section [8];

A flexible compact heap [10];

Described cam [13] and flexible compact heap [10] are arranged at the both sides of described damper rod [4] respectively; When described latch assembly was in locking state, described damper rod [4] was clamped by compact heap [10] and cam [13] subtend, makes damper rod [4] be fixed on the head section [8].

Among the embodiment shown in the drawings, described depression is a locating hole, and described lock tab is alignment pin [9], and alignment pin [9] is fixed on the described head section [8].

Described locating hole has three, is respectively first locating hole [6], second locating hole [7], the 3rd locating hole [19], and described alignment pin [9] is one, and under latch assembly was in locking state, described alignment pin [9] was inserted in the selected locating hole.

Described compact heap [10] is positioned at the jack on the head section [8], described compact heap [10] is slidingly connected mutually with the inwall of jack, described compact heap [10] can slide along described jack after stressed on the direction of sliding, be provided with flexible member between described compact heap [10] and the head section [8], make compact heap [10] have elasticity.In the accompanying drawing, described flexible member is for being disk spring [11], the end of the close damper rod [4] of described compact heap [10] is the compact heap end [15] of radially protruding, described flexible member is pressed on the inboard and head section [8] of compact heap end [15], after the latch assembly release, the power that cam [13] is pressed to a side of damper rod [4] disappears, then compact heap [10] is exerted pressure to damper rod [4] from a side, make damper rod [4] laterally move, locating hole on the damper rod [4] breaks away from described alignment pin [9], damper rod [4] can move axially in receiving orifice [17], aims at alignment pin [9] until a selected locating hole.

The end away from damper rod [4] of described compact heap [10] is with the spacing back-up ring [20] that radially protrudes, when described latch assembly is in released state, described spacing back-up ring [20] contacts with head section [8], the end of the close damper rod [4] of compact heap [10] is stretched in the described receiver hole [17], this spacing back-up ring [20] can be after the latch assembly release, and restriction compact heap [10] is excessively shifted to baffle plate plate [4].

Claims

1, a kind of reciprocating saw comprises at least:

A housing [1] that has head section [8];

A receiver hole [17], it is opened on head section [8];

A damper rod [4], it is inserted in the described receiver hole [17];

A baffle plate [3], the outer end of it and damper rod [4] is pivotally connected;

A latch assembly comprises at least

A plurality of depressions separately, they are opened on damper rod [4];

A lock tab, it is arranged on the head section [8];

Described latch assembly locks damper rod [4] mutually with head section [8], when described latch assembly is in locking state, described lock tab is inserted in the depression, when described latch assembly is in released state, described lock tab breaks away from described depression, damper rod [4] can move axially in receiver hole [17]

It is characterized in that:

Described latch assembly also comprises

A cam [13], this cam [13] are provided with the operation spanner [16] that radially extends, and described cam [13] is connected by camshaft [14] phase pivot with head section [8];

A flexible compact heap [10];

Described cam [13] and flexible compact heap [10] are arranged at the both sides of described damper rod [4] respectively; When described latch assembly was in locking state, described damper rod [4] was clamped by compact heap [10] and cam [13] subtend.

2, reciprocating saw according to claim 1 is characterized in that: described depression is a locating hole, and described lock tab is alignment pin [9], and alignment pin [9] is fixed on the described head section [8].

3, reciprocating saw according to claim 2, it is characterized in that: described locating hole has three, be respectively first locating hole [6], second locating hole [7], the 3rd locating hole [19], described alignment pin [9] is one, under latch assembly was in locking state, described alignment pin [9] was inserted in the selected locating hole.

4, reciprocating saw according to claim 1, it is characterized in that: described compact heap [10] is positioned at the jack on the head section [8], described compact heap [10] is slidingly connected mutually with the inwall of jack, is provided with flexible member between described compact heap [10] and the head section [8].

5, reciprocating saw according to claim 4 is characterized in that: described flexible member is for being disk spring [11].

6, reciprocating saw according to claim 4, it is characterized in that: the compact heap end [15] of the end of the close damper rod [4] of described compact heap [10] for radially protruding, described flexible member is pressed on the inboard and head section [8] of compact heap end [15].

7, reciprocating saw according to claim 4, it is characterized in that: the end away from damper rod [4] of described compact heap [10] is with the spacing back-up ring [20] that radially protrudes, when described latch assembly is in released state, described spacing back-up ring [20] contacts with head section [8], and the end of the close damper rod [4] of compact heap [10] is stretched in the described receiver hole [17].