CN2110564U

CN2110564U - Electric carpenter's plane with full-automatic safety protector

Info

Publication number: CN2110564U
Application number: CN 91221703
Authority: CN
Inventors: 刘同波
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-17
Filing date: 1991-09-17
Publication date: 1992-07-22

Abstract

The utility model relates to an electric carpenter's plane with a full-automatic safety protector, in which, a protective cover is arranged on a planing tool; the protective cover is connected with a connecting rod whose the other end is connected with an electromagnet and a tension spring which are mutually corresponding to each other; a human body induction plate is arranged on the machine face of a planing machine. When the planing machine works, once the human body touches the dangerous area (within the range of the induction plate), the protective cover can be automatically closed, preventing the unexpected accidents.

Description

Electric carpenter's plane with full-automatic safety protector

The utility model relates to a kind of electric planer for wood working, particularly has the electric planer of safety guard.

Present known electric planer for wood working is made up of planing tool and planer, and planing tool is directly exposed on the planer, in digging the material process, often because the timber quality problems are beated timber suddenly, brings hand into edge of a knife district, hinders finger and dig, and causes permanent disability.

The purpose of this utility model is to provide a kind of electric planer with automatic safe protective device, can prevent unexpected wounded or disabled generation.

The purpose of this utility model is to realize like this, on planing tool by adorning a protecting cover, protecting cover can be movable in an arc duct, one end and a connecting rod of protecting cover are connected, the other end downside of connecting rod be connected perpendicular to the extension spring of connecting rod, its upside corresponding with an electromagnet (being in the state of contacting when protecting cover is opened), electromagnet is electrically connected with a time relay, one end of the time relay is electrically connected with contactor, and the other end of contactor is electrically connected a contact-making switch.On the other hand, planer is designed to a tablet near the bed surface of an end of planing tool, between tablet and the planer insulator is housed, tablet is electrically connected with an end of an induced signal disposable plates, and the other end of induced signal disposable plates is electrically connected with a midget relay.When carrying out planing wood work, press contact-making switch like this, contactor is just started working, the time relay and motor are connected simultaneously, after 20 seconds, made electromagnet produce magnetic field, attract connecting rod, under the leverage of connecting rod, protecting cover is opened, can carry out planing operation work.If wooden relatively poor or scar joint is arranged and produce and beat unexpectedly, hand is brought in the hazardous area, in the time of promptly in the tablet zone, under the electric capacity effect of human body, make the tablet out-of-balance condition, produce the signal of telecommunication, after handling by the induced signal disposable plates, make midget relay carry out work and cut off electric current, so make the electromagnet loss of excitation, under the effect of extension spring, protecting cover closed rapidly, cover planing tool, prevent the generation of accident.

Since take such scheme, the generation of contingency in the time of not only can preventing work, and can prevent that planer when the sawmilling of carrying out other is worked, is not intended to the accident that contact takes place, also can prevent the fly cutter accident of motor in starting moment generation.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a front view of the present utility model.

1, protecting cover 2, tablet 3, contact-making switch

4, midget relay 5, induced signal disposable plates 6, guard shield 7, arc duct 8, connecting rod 9, contactor 10, the time relay 11, electromagnet 12, extension spring 13, guard shield 14, power switch 15, insulator 16, planer 17, planing tool

In Fig. 1, the utility model is made up of planer (16) and planing tool (17), one protecting cover (1) is installed on planing tool (17), protecting cover (1) can be movable in arc duct (7), one end of one end of protecting cover (1) and connecting rod (8) is connected, the other end downside of connecting rod (8) be connected perpendicular to the extension spring (12) of connecting rod (8), its upside is corresponding with electromagnet (11), and (protecting cover (1) is when opening, attract bonding state with the electromagnet place), electromagnet in Fig. 2 (11) is electrically connected with the time relay (10), the other end of the time relay (10) is electrically connected with contactor (9), and the other end of contactor is electrically connected a contact-making switch (3).Fig. 1, near tablet (2) being housed on the end bed surface of planing tool (17), between tablet (2) and the planer (16) insulator (15) is housed, be electrically connected between tablet (2) and the induced signal disposable plates (5), the other end of induced signal disposable plates (5) is electrically connected a midget relay.

Claims

1, a kind of automatic safety protective device electric planer for wood working, form by planer [16] and planing tool [17], it is characterized in that being equipped with on the planing tool [17] protecting cover [1], protecting cover [1] can move in arc duct [7], one end of protecting cover [1] and connecting rod [8] are connected, the other end downside of connecting rod [8] is connected with extension spring [12] perpendicular to connecting rod [8], its upside corresponding with an electromagnet [11] (protecting cover [1] is when opening, and is in electromagnet and attracts bonding state); Electromagnet [11] is electrically connected with an end of the time relay [10], and the other end of the time relay [10] is electrically connected with contactor [9], and the other end of contactor [9] is electrically connected with contact-making switch [3]; Near on the end bed surface of planing tool [17] tablet [2] is being housed, between tablet [2] and the planer [16] insulator [15] is housed, be electrically connected between tablet [2] and the induced signal disposable plates [5], the other end of induced signal disposable plates [5] is electrically connected a midget relay [4].