JPS629480Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for attaching a front panel to a housing of a floor-standing device such as an oil hot air heater.

In general, the housing of oil hot air heaters etc.
The front panel can be attached removably, but there are two ways to attach it, for example, by screwing, and by attaching an arrowhead-shaped head to the female member, which is a fork-shaped clamping piece with spring elasticity. A method of forcibly fitting male members having However, the former screw-fastening method is difficult to operate because the equipment is floor-standing and requires a crouching position to install and remove the equipment. On the other hand, in the latter method of forced fitting, there is a risk that the spring elasticity of the clamping piece will weaken due to repeated use, resulting in poor durability.

Therefore, an object of this invention is to provide a front panel mounting device that can firmly mount a front panel to a housing with a one-touch operation.

Hereinafter, this invention will be described in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows an embodiment of an oil hot air heater to which this invention is applied. That is, this oil hot air heater includes a housing 11 including a detachable front panel 21. This case 1
For example, a pot-type burner 12 and a combustion chamber 18 connected to the top thereof are installed in the interior of the burner 1. In this case, the combustion chamber 18 includes an internal duct 13 for exhausting combustion gas that extends upward. are being communicated. At the periphery of the opening of the housing 11 covered by the front panel 21, there is a flange 14 bent forward at a substantially right angle with a step.
is formed, and an arbitrary number of locking protrusions 15 having a substantially right triangular cross section are provided on the upper part thereof, two in this embodiment. Further, tongue pieces 16, 16 are provided in succession on both sides of the lower edge of the opening of the housing 11, respectively, so as to face almost directly below. Note that reference numeral 17 is a mounting leg for supporting the housing 11 at a constant height from the floor surface. On the other hand, the front panel 21 is provided with a viewing window 22 corresponding to the heat-resistant see-through glass 19 fitted into the combustion chamber 18, and a warm air outlet 23 opened at the top thereof. Referring to FIG. 2, the upper part of the back side of the front panel 21 is a locking piece 24 bent inward at a substantially right angle so as to engage with the protrusion 15. On the bottom surface, there is a crescent lock 2 with the tongue pieces 16, 16 as partners.
5, 25 are attached. As shown in FIGS. 3 and 4, this crescent lock 25 includes a mounting bracket 25a fixed to the bottom surface of the front panel 21 with screws 26, and a shaft bracket 25c that is connected to the mounting bracket 25a. and a rotary fitting 25b that is movably attached. In this case, the rotating fitting 25b
has an engaging portion 25d formed in an arc shape and an operating portion 25e bent outward at one end of the engaging portion 25d.
For example, when rotated clockwise in Fig. 3,
The tip of the engaging portion 25d operates to gradually embrace the tongue piece 16. Therefore, due to such rotation of the crescent lock 25, the housing 11 and the front panel 21 are attracted to each other and are firmly attached to each other. In this engaged state, as shown in FIG. 2, the lower end of the tongue piece 16 is in contact with the bottom wall surface 25f of the engaging part 25d, and the front panel 21 is fixed so that it does not shift upward. When moving,
Even if you put your hand on the front panel 21 and lift it up, the front panel 21 will not come off from the casing. On the other hand, in order to remove the front panel 21 from the housing 11, the crescent lock 25 may be rotated counterclockwise in FIG. 3 to release the engaging portion 25d from the tongue piece 16. In this embodiment, as shown in FIG. 3, the tongue piece 16 includes:
It is formed of a curved portion 16a that bulges toward the rear of the housing 11, thereby reducing the frictional resistance against the engaging portion 25d to ensure smooth operation of the crescent lock 25, as well as to ensure smooth operation of the crescent lock 25 and the like. It is designed to absorb relative installation errors.
Further, as shown in FIG. 5, a tapered surface 16 is provided at the lower end of the tongue piece 16 and has a downward slope along the locking rotation direction of the crescent lock 25 (in the direction of the arrow in the figure).
b may be provided. According to this, as the crescent lock 25 is tightened, the bottom wall 25f of the locking portion 25d is pushed down by its tapered surface 16b, so that the locking piece 24 at the upper part of the front panel 21 Since the front panel 21 is strongly bitten into the housing 11, the front panel 21 can be more firmly attached to the housing 11.

Furthermore, this invention also includes the following modifications. That is, the locking piece 24 may be formed into a projecting piece shape, and correspondingly, an engaging hole may be provided on the housing 11 side to receive the locking piece 24. Alternatively, the crescent lock 25 may be provided on the casing 11 side, and the tongue piece 16 may be formed on the front panel 21 side.

As is clear from the above description of the embodiments, according to this invention, the front panel can be securely attached to the housing with a single touch operation, and its practical value is great.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of an oil hot air heater to which this invention is applied, Figure 2 is a schematic cross-sectional view showing the front panel and casing attached using this mounting device, and Figure 3. 4 is a plan view showing a mounting state of the crescent lock, FIG. 4 is a perspective view of the main parts of the crescent lock, and FIG. 5 is a front view showing a modified embodiment of the tongue piece. In the figure, 11 is a housing, 15 is a protrusion, 16 is a tongue piece,
16a is a curved portion, 16b is a tapered surface, 21 is a front panel, 24 is a locking piece, and 25 is a crescent lock.

Claims (1)

[Scope of claim for utility model registration] (1) A device for removably attaching a front panel to the opening of a housing of an oil hot air heater, etc.
a first engaging means for engaging the upper side of the front panel with the upper side of the opening of the corresponding housing; and a second engaging means for engaging the lower side of the front panel with the lower side of the opening of the corresponding housing. The second engaging means includes a downwardly directed tongue piece connected to either the front panel or the housing, and the tongue piece is used as a lock receiving member to connect the other side. A front panel mounting device characterized by comprising a crescent lock provided in the front panel. (2) Claim (1) of the utility model registration is characterized in that the tongue piece is formed with a curved bulge that makes point or line contact with the arcuate locking part of the crescent lock. front panel mounting device. (3) In claim (1) or (2) of the utility model registration, the lower edge of the tongue piece engages with the bottom wall of the crescent lock as the crescent lock is tightened. A front panel mounting device characterized in that a tapered surface is formed to bias the front panel relatively downward.