JPS6218199B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a temperature regulating device for an iron.

Structure of the conventional example and its problems As shown in Fig. 1, the conventional iron temperature control device includes a thermostat 2 on a base 1 having a heater, and an operating rod that comes into contact with the movable part of the thermostat 2. 3 is provided, and the operating rod 3 is in contact with the cam surface of the operating member 5 provided in front of the handle 4.
The thermostat 2 controls the vertical movement of the operating rod 3 caused by rotating the operating member 4.
The signal is transmitted to the contact point to open and close the contact. Since the thermostat 2 and the operating member 5 are mounted at separate locations for ease of operation and thermal considerations, the operating rod 3 that connects them is crank-shaped. Here, due to irregularity in parallelism or twist of both ends of the crank shape of the actuating rod 3, or due to the finishing condition of both end surfaces, the actuating rod 3 may oscillate from side to side when the operating member 5 is rotated. This causes a problem in that the distance between the cam surface of the operating member 5 and the movable part of the thermostat 2 changes, which tends to cause a difference in the amount of temperature change on the base surface with respect to the movable angle of the operating member 5. Further, since the thermostat 2 and the operating member 5 are directly connected through the operating rod 3, fine adjustment of the temperature during assembly is performed using the screw 7 provided on the bimetal 6. However, due to the structure of the screw 7 provided in the bimetal 6, the screw 7 is located deep inside the main body, making the workability during adjustment extremely poor.In addition, the tank 8 placed above it is even more inconvenient. etc., there were major problems in obtaining the desired base surface temperature.

OBJECTS OF THE INVENTION It is an object of the present invention to solve the above two conventional problems at once with a simple configuration, and to easily obtain a desired base surface temperature.

Structure of the Invention The iron temperature regulating device of the present invention includes a thermostat for controlling the temperature of a base surface, a lower end in contact with a movable part of the thermostat, a thicker diameter part in the upper end, and a screw in the lower part. It is equipped with an operating rod that stands vertically, an L-shaped arm member that is attached to the threaded portion of the operating rod so that it can move forward and backward, and an operating member that can rotate freely by abutting the cam surface on the end of this arm member. By vertically moving the operating rod via the arm member using the operating member, temperature control accuracy and workability of fine temperature adjustment during assembly are improved.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In Figures 2 and 3, 11
12 is a thermostat provided on the base 11; 12a is a movable part of the thermostat 12; Reference numeral 13 denotes an operating rod that stands almost vertically with its lower end in contact with the movable portion 12a;
A screw 13a is cut at the top, and this screw 13a
An L-shaped arm member 13b is screwed onto the arm member 13b so that its position can be changed. That is, when the actuating rod 13 is rotated, the arm member 13b is vertically displaced. In addition, a thick diameter portion 1 is located above the screw 13a of the operating rod 13.
3c, and the operating rod 13 is slidably inserted into a guide hole 14 provided inside the iron main body. Reference numeral 15 denotes a handle on the upper part of the iron main body, and an operating member 16 is rotatably provided in front of the handle 15. Reference numeral 16a denotes a cam surface formed at one end of the operating member 16, which is in contact with the end of the arm member 13b.

In the above configuration, when the operating member 16 is rotated, the amount of displacement of the cam surface 16a is
and accurately displaces the actuating rod 13.
The movable part 12a of the thermostat 12 also has a cam surface 16.
The displacement accurately follows the displacement amount of a, making it extremely easy to set the temperature of the thermostat 12. Further, the actuating rod 13 is connected to the arm member 13b by a screw 13a.
Since the movable part 12a of the thermostat 12 and the cam surface 16a of the operating member 16 are screwed together, the distance between the movable part 12a of the thermostat 12 and the cam surface 16a of the operating member 16 is variable, and there is no need to particularly increase the machining accuracy of each member.

Effects of the Invention As described above, the present invention provides an operation member by providing a thick diameter portion and a screw at the upper end of an operating rod that stands approximately vertically, and screwing an L-shaped arm member into this threaded portion so as to be able to move forward and backward. By linking the cam and the thermostat, the amount of displacement of the cam caused by the rotation of the operating member can be accurately transmitted to the thermostat, and the following effects can also be achieved.

In other words, since the thick diameter part provided at the upper end of the operating rod is located at the upper part of the handle, the temperature can be finely adjusted by rotating this thick diameter part, which greatly improves work efficiency, and also makes it easier to control the operating member. This has the effect of greatly improving accuracy with a simple configuration such that rotation does not act on the thick diameter portion.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a conventional iron, Fig. 2 is a partially cutaway side view of an iron according to an embodiment of the present invention, and Fig. 3 is a side view of a temperature control device of the iron. . 12...Thermostat, 12a...Movable part,
13... Actuation rod, 13b... Arm member, 16...
...Operation member, 16a...cam surface.

Claims (1)

[Claims] 1. A thermostat that controls the temperature of the base surface, an operating rod whose lower end is in contact with the movable part of the thermostat, and whose upper end is provided with a thick diameter section and a screw below it, and which is erected almost vertically, and this operating rod. It is equipped with an L-shaped arm member that is attached to the threaded part of the arm so that it can move forward and backward, and a rotatable operating member that has a cam surface in contact with the end of this arm member, and is operated by the operating member via the arm member. An iron temperature control device that moves the rod up and down.