JPH0517596Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial field of application> This invention has a furnace body and a firing table on a base, and is mainly used for porcelain teeth with the furnace body placed on the top of the firing table. The present invention relates to a workbench provided on the peripheral wall surface of the base of a dental firing furnace.

<Prior art> The work table provided on the side wall of a dental firing furnace is used to place porcelain teeth or original cast dentures that will become porcelain teeth (hereinafter referred to as porcelain teeth). be.

An example of a conventional workbench is shown in FIGS. 6 and 7. In both figures, 1 is the base of a dental firing furnace, and a furnace body (not shown) and a firing table are provided on the upper surface of the base, and the porcelain tooth placed on the firing table is housed inside the furnace body. and fire the porcelain tooth. A workbench 4 is attached to a suitable position 2a of a peripheral wall 2 extending vertically downward from the outer edge of the upper surface of the base 1 by two fittings 3. Each mounting bracket 3 is L
It is a letter-shaped metal fitting, and as shown in FIGS. 6 and 7, one arm 5 faces vertically downward along the peripheral wall surface 2a of the base 1, and the other arm 9 faces outward from the peripheral wall surface 2a. It is arranged to face. Two elongated holes 8, 8 are provided in the arm 5 in a row in the length direction of the arm 5. Insert the bolts 6, 6 into the long holes 8, 8,
Bolts 6, 6 are screwed into screw holes 7, 7 drilled in the peripheral wall 2, and the fitting 3 is fastened and fixed to the peripheral wall 2. In arm 9, there are two
holes 11, 11 are provided. This hole 1
Insert the bolts 12 and 12 into the holes 1 and 11, and attach the workbench 4.
Bolts 1 are inserted into screw holes 13, 13 drilled on the bottom surface of
2 and 12, and attach the workbench 4 to the metal fitting 3.
It is tightened and fixed. Note that the workbench 4 is a rectangular flat member.

<Problems to be solved by the invention> Since the above-mentioned workbench is screwed to the top surface of the mounting bracket 3 screwed to the peripheral wall surface 2a of the base 1, the mounting position of the workbench may be changed depending on the work circumstances. When using the workbench 4 by moving it to a different position on the surrounding wall, remove the four bolts 6 that fasten the mounting bracket 3 to the surrounding wall, and tighten and fix the mounting bracket 3 at a convenient position. Also, when this kiln is not in use and the workbench 4 is removed in order to reduce the floor space occupied by the kiln, the bolts 6 that tighten this mounting bracket 3 must be removed. When using the kiln, bolt 6 should be removed again.
must be tightened, and the workbench 4 must be installed together with the mounting bracket 3. In this way, you can move the workbench 4 to a convenient position on the peripheral wall stand 2 of the base 1,
When attaching or removing the workbench 4 from the base 1, use a tool to tighten the mounting bolts 6 each time.
There is a problem in that it is inconvenient to have to remove and tighten the screws.

<Means for Solving the Problems> The present invention provides a dental firing furnace in which a furnace body and a firing table are provided on a base, and the furnace body fires porcelain teeth on the firing table. A plurality of through holes are provided along the peripheral wall surface of the workbench, a workbench body is arranged approximately horizontally near the lower edge of these throughholes, and a part of the workbench body on the base side is provided with the workbench body. An engaging member is provided in each of the through holes so as to be movable forward and backward, and engages with the inner side of the peripheral wall around the through hole when entered into the through hole.

<Function> When attaching the workbench main body to the peripheral wall surface of the base, the engaging tool provided on the workbench main body is inserted into the through hole provided in the peripheral wall surface of the base, and the engaging tool is inserted around the through hole. engages with the inner surface of the peripheral wall of the Due to this engagement, the workbench main body is held substantially horizontally on the peripheral wall surface of the base. When removing the workbench main body from the peripheral wall surface of the base, the engaging tool is provided in the through hole so that it can move forward and backward, so remove the engaging tool from the inner surface of the peripheral wall around the through hole and remove it from the through hole. to remove the workbench body. By inserting the engaging tool into the through-hole provided so that the workbench body can be attached to a desired position on the peripheral wall surface of the base and engaging it, the attachment position of the workbench body can be adjusted according to the convenience of the work. can be easily changed.

<Example> An example of the present invention will be described with reference to FIGS. 1 to 5. FIGS. 4 and 5 show a dental kiln equipped with this workbench. This dental firing furnace is provided with one furnace body 14 and two firing tables 15 on the upper surface of a base 1, and fires a porcelain tooth placed on the upper surface of one of the firing tables 15. At this time, the furnace body 14 is lowered, one firing table 15 is housed in the furnace body 14, and the porcelain tooth is fired. When firing a porcelain tooth placed on the top surface of the other firing table 15, the furnace body 14 is once raised from one firing table 15 and moved to the other firing table 15 side. The porcelain tooth is lowered onto the firing table 15 to accommodate this porcelain tooth and the other firing table 15, and the porcelain tooth is fired. The main difference between the workbench shown in FIGS. 6 and 7 and the firing table of this embodiment is that the workbench main body 19 is provided with an engaging tool 20, and the peripheral wall surface 2a of the base 1 is provided with a plurality of engagement tools 20. This is because a through hole 21 is provided.

The workbench main body 19 has a rectangular flat plate shape with a vertical length of 94 mm and a horizontal length of 151 mm, for example.
The workbench main body 19 has one long side along the peripheral wall surface 2a of the base 1, and a plate surface parallel to the upper surface 1a of the base 1. This workbench main body 19 is
It has a circular opening 22 in the center, the entire outer peripheral edge of the flat plate is bent upward at a right angle, and an edge 23 is formed around the entire outer peripheral edge. Workbench body 1
A rectangular flat plate 24 slightly smaller than the outer contour of the workbench body 19 is inserted into the upper surface of the worktable body 9. In order to facilitate taking out the flat plate 24 from the workbench main body 19, one notch 25, 25 is provided in each of the edges 23 on both short sides near the base 1 side.

The engaging members 20 are formed into a flat plate shape with a substantially rectangular outer shape, and are provided protruding from each end of the long side of the workbench main body 19 along the base 1 . This engagement tool 20 has a long side arranged perpendicular to the plate surface of the workbench main body 19, and the long side on the workbench main body 19 side is on the base 1 side of the workbench main body 19. It is joined to the edge 23. This engagement tool 20 enters into the base 1 through a through hole 21, and a notch 27 is provided on the lower edge of the longer side of the engagement tool 19 on the workbench main body 19 side.
is provided. This notch 27 is the through hole 2
The size is such that it can be engaged with the lower edge of 1. Engagement tool 20
A notch 28, which is slightly larger than the notch 27, is provided on the upper edge of the worktable body 19 side, and is in contact with the inner surface 2b of the through hole 21.

The through holes 21 have vertically elongated rectangular openings, and a plurality of through holes 21 are formed in a horizontal row along the upper surface 1a of the base 1 on the peripheral wall surfaces 2a of the front, left and right sides, and back of the base 1, respectively. It is provided. This through hole is normally used for cooling a control device built into the base 1. The through holes 21 are formed at equal intervals, and when the workbench main body 19 is attached to the peripheral wall surface 2a of the base 1, a predetermined number of through holes 21 are formed between the two engaging tools 20, 20. Engagement tools 20, 20
The through holes 21 are arranged to correspond to the .
The width of the through hole 21 is slightly wider than the thickness of the engagement tool 20, and the vertical length of the through hole 21 is as follows.
As will be described later in the operation, the engagement tool 20 connects to the through hole 21.
The engaging member 20 is formed in such a length that it can freely move forward and backward, and that the engaging member 20 engages with the inner circumferential wall around the through hole 21 when the engaging member 20 enters the through hole 21 . The workbench main body 19 is connected to the peripheral wall surface 2 on the front side of the base 1.
When attaching to a, turn the engagement tools 20, 20 toward the peripheral wall surface 2a side to which the workbench main body 19 is attached,
The workbench main body 19 is brought into a state in which the engaging tool 20 side is slightly lowered from a substantially horizontal position. From this state, the engaging tool 2
0, 20 into corresponding desired through holes 21, 2
1 and each cutout 2 provided on the lower edge
7 and 27 are engaged with the lower edges of the respective through holes 21 and 21. Then, the notches 27, 27 are the through holes 21,
When the workbench body 19 is lowered while maintaining the engaged state with the lower edge of the engagement tool 21, the upper part of the long side of the engagement tool 20 on the side of the workbench body 19 comes into contact with the upper inner surface 2b of the through hole 21. The workbench main body 19 is held in a substantially horizontal state. The weight of the workbench body 19 is supported by the engagement between the notches 27 of the two sets of engagement tools 20 and the lower edges of the through holes 21, and the downward rotation of the workbench body 19 is Workbench body 19 of engagement tool 20
The upper part of the long side of the side abuts against the inner surface 2b of the peripheral wall 2 around the through hole 21, thereby being locked.

When removing the workbench main body 19 from the peripheral wall surface 2a, the engaging tool 20 is lifted slightly upward to remove both notches 27 from the lower edge of the through hole 21. By lifting the outer end side of the workbench body 19 in this detached state, the lower part of the engaging tool 20 is moved out of the through hole 21, and the upper part of the engaging tool 20 is also removed from the through hole 21.
Exit from 1.

Further, since the through holes 21 are provided in the front surface, both left and right side surfaces, and the rear peripheral wall surface 2a of the base 1, the workbench main body 19 can be attached to a desired peripheral wall surface 2a. Furthermore, with the above configuration, the workbench main body 19
No tools are required to remove or attach the from the base 1.

In this embodiment, the engaging member is a rectangular flat plate, but it may also be another detachable metal fitting. Further, this engagement tool can be provided on workbench bodies having different shapes and sizes. The point is that the engagement tool provided on the edge of the workbench body can freely move forward and backward into the through hole provided along the peripheral wall surface of the base of the dental firing furnace, and in the state where the engagement tool has entered the through hole. Any structure may be used as long as it engages with the inner surface of the peripheral wall around the through hole and holds the workbench main body substantially horizontally.

<Effects of the invention> According to this invention, the workbench can be attached to or removed from the peripheral wall of the base of the dental firing furnace without using tools, making it easy to attach and detach the workbench. In addition to this, multiple through holes are provided on the peripheral wall of the base, and a workbench can be attached to each of the through holes, so the workbench can be attached to suit the convenience of using the workbench. This has the effect that the position of can be changed.

[Brief explanation of drawings]

Figure 1 shows one embodiment of this invention.
- Fig. 2 is an enlarged longitudinal partial side view as seen from direction C; Fig. 2 is an enlarged transverse partial plan view as seen from the B-B direction of Fig. 3 showing the same embodiment; Fig. 3 is an enlarged partial front view showing the same embodiment. 4 is a front view of a dental firing furnace equipped with a workbench according to the same embodiment, FIG. 5 is a side view of the same furnace, FIG. 6 is a front view of a conventional workbench, and FIG. FIG. 2 is a side view of a conventional workbench. 1... Base, 2a... Peripheral wall surface of the base, 2b...
Inner surface of peripheral wall, 14... Furnace body, 15... Firing furnace, 1
9... Workbench main body, 20... Engagement tool, 21... Through hole.

Claims (1)

[Scope of utility model registration request] In a dental firing furnace in which a furnace body and a firing table are provided on a base, and the furnace body fires the porcelain teeth on the firing table, a plurality of through-holes; a workbench body disposed approximately horizontally near the lower edges of these through-holes; and a workbench body provided on the base side portion of the workbench body so as to be able to move forward and backward into each of the through-holes; and an engaging tool that engages with an inner surface of the peripheral wall around the through hole in a state in which the workbench for a dental firing furnace is provided.