JPH0212417Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a wick up/down device for a wick up/down oil combustor.

Conventional structure and its problems Conventionally, an engagement pin 6 is attached to the core 3, and an L-shaped engagement slot 10 with an entrance on the upper side that engages with the engagement pin 6 is used.
However, no measures were taken to prevent the engagement pin 6 from shifting due to core rotation in the engagement slot 10 (see FIG. 1).

For this reason, the engagement pin 6 and the engagement groove 10 may be significantly shifted from their normal positions due to the operation, and the top and bottom of the core will no longer move smoothly, or in the most severe case, the engagement will come off and the core 3 will not go down. There were cases where this serious failure occurred.

Purpose of the invention The present invention was made in view of the above-mentioned problems, and only requires a partial change in the shape of the engagement slot of the cross arm, and the engagement is achieved by the movement of the engagement pin by rotation by vertically operating the core. The purpose is to provide a structure that prevents it from coming off.

Structure of the invention In order to achieve the above object, the present invention provides, for example, a small recess near the entrance of the engagement slot provided in the cross arm at least on one side, so that the engagement pin can be moved in the direction of disengagement of the engagement slot. When the pin moves into the recess, it falls into this recess, prevents it from advancing further, and by performing the normal vertical movement of the core, the engaging pin is disengaged from the recess and returns to the normal fitting part. It is something.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 6.

FIG. 2 is a schematic external view of the oil tank including the core up-and-down mechanism, and FIG. 3 is a half plan view thereof. 1 is an oil tank in which a wick guide tube 2 is set upright from the bottom, and a wick 3 is concentrically attached to the oil tank so as to be able to protrude and retract above the fire pan 2', and the outside of the wick 3 is surrounded by a wick outer tube 4 ( This figure 2 shows the state when the lead is lowered.) In FIG. 4, the core 3 is fixed to the outer core holding cylinder 5 by a claw or the like so that it can move together, and engagement pins 6 and 6' are respectively erected on opposing sides of the lead holding cylinder 5. .

Reference numeral 7 denotes a core vertical shaft that is rotatably provided through the side of the oil tank 1, and a pair of armrests 8 are attached to the core vertical shaft 7 so as to sandwich the core 3 in the oil tank 1. It is fixed with screws or the like, and an operating lever 9 is fixed outside the oil tank 1.

As shown in FIG. 4, the shape of the core 3 and armature 8 is such that approximately L-shaped engagement slots 10 and 10' are formed at the tip of the armature 8 in opposite directions. In the oil tank 1, the engaging pins 6, 6'
are adapted to be fitted into the engagement grooves 10, 10' of the cross arm 8 by turning through the inlet portions 10a, 10a' of the engagement grooves 10, 10', respectively.

FIG. 5 shows the relationship between the cross arm 8 and the engaging pin 6 when the core 3 is placed above and below, and the approximately midway of the engaging groove 10 portion parallel to the longitudinal direction of the cross arm 8 is normally placed above and below the core. In order to obtain a sliding portion B in which the engaging pin 6 does not normally come near the opening of the engaging slot 10, 10' as shown in the figure, so that the engaging pin 6 is operated while sliding at times. It is set up in The same applies to the engagement slot 10' (not shown).

In normal use, the engagement slots 10, 10'
are parallel to each other, and therefore, opposite couple forces are applied to the core holding cylinder 5, so that the core 3 does not rotate and the engaging pins 6, 6' move up and down almost linearly.

A concave portion is provided as a rotation stop portion 11 in a portion of the engagement slot near the inlet portion 10a that is not the sliding portion B portion.

According to the configuration described above, by rotating the operating lever 9, the tip of the armrest 8 moves up and down via the vertical shaft 7, and engages the engagement slots 10, 10' and the engagement pins 6, 6. ' are engaged, the lead 3 moves up and down together with the lead holding cylinder 5. This proposal is especially suitable for the engagement groove 1.
Since a small recess 11 is provided near the entrance of holes 0 and 10', the armrest 8 fits into the engagement groove 1 as shown in FIG.
When the pins 0 and 10' are held close to horizontal and are swung up and down many times, the horizontal movement of the engagement pins 6 and 6' is prevented by the recess 11.
, stop any further movement, and release the engaging pin 6.
6' can be prevented from disengaging from the cross arm 8,
In addition, when the lead 3 is installed, as the lead 3 passes through the recess 11, a click feeling can be obtained and it can be felt that the lead 3 has been correctly installed.

Effects of the invention As described above, according to the invention, the recess prevents the engagement pin from moving when the cross arm swings in the horizontal position, prevents the engagement pin from coming off, and ensures correct attachment when attaching the core. This has the effect of being able to be confirmed by the feel of the rotation stopper.

In addition, since the armrests are provided in pairs on the left and right, the lamp wick is supported on both the left and right sides, and the forces that would otherwise cause the wick to rotate in the lateral direction, which would occur in the case of cantilever support, are mutually canceled out, and the wick rotates and engages with the armrest. It has the advantage of smoothly moving up and down without coming off.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the operation of the conventional core lifting device, Figure 2
The figure is a partially sectional front view of an oil tank including a core up-and-down mechanism showing one embodiment of the present invention, FIG. , FIG. 5 is an explanatory diagram of the operation showing the engagement relationship between the concentric pin and the arm arm, and FIG. 6 is an explanatory diagram of the operation of the engaging pin and the arm arm. 3...core, 6,6'...engaging pin, 8...branch arm,
10, 10'... Engagement slot, 11... Rotation stopper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A substantially L-shaped curved engagement formed on a core, an engagement pin attached to the core, and a pair of armrests arranged on both sides of the core that can be moved up and down. the engagement pin is fitted into the engagement groove, and the engagement groove has an entrance that is on the inlet side of the engagement position of the engagement pin; A wick up/down device for an oil combustor, wherein a rotation stopper part of the wick is formed on the back side of the wick. (2) The wick up-and-down device for an oil combustor according to claim 1, wherein the wick rotation stopper is a concave shape formed in at least one of the engagement slots of the pin.