JP2017158665A - Method for manufacturing grill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preferable method for manufacturing a grill that facilitates cleaning, enables handling easily and has a beautiful appearance.SOLUTION: A method for manufacturing a grill is provided. (1) A lateral bar fastening step of fastening both end faces of a lateral bar 02 provided with a first bent part 081 being bent by a predetermined angle by projection welding is performed in a fastened position provided in the inside surface of a frame body 10 in a dividing state. (2) A second bent part forming step of forming a second bent part with an absolute value equal to a predetermined angle and being bent in the backward direction in a place spaced apart by a second size at an opposite side with the end surface of the lateral bar from the first bent part 081, and facing a dividing place 09 of the frame body 10 in the dividing state of one side to the dividing place 09 of the frame body 10 in the dividing state of the other side, is performed to the lateral bar 02. (3) A connecting side forming step of connecting the dividing place 09 of the frame body 10 in the dividing state of one side with the dividing place 09 of the frame body 10 in the dividing state of the other side, and forming the side for connection is performed.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a method for manufacturing a grill used in a grill or the like.

Conventionally, for example, this type of grille used by being placed on a tray such as a grill is composed of a wire rod, and the wire rod is disposed between two opposing sides of a substantially rectangular frame body in plan view that constitutes the outer periphery of the grill net. It is constructed by passing a large number of mesh bars (horizontal bars) made of, and the upper surface in the vicinity of both end faces of the horizontal bar is superimposed on the lower surface of the frame body and fixed by welding or the like (see, for example, Patent Document 1).
A wire rod is formed in a substantially rectangular shape in advance to form a frame, and the upper surfaces in the vicinity of both end surfaces of the horizontal bar are overlapped and welded to the lower surfaces of the two opposite sides of the frame, so that each of the two opposite sides Even if there is some variation in the distance between them or the lengths of the horizontal bars are not uniform, it is advantageous because the two opposing sides and the horizontal bars can be joined well by welding.

JP 2001-353081 A

However, in such a conventional grill, for example, to adjust the distance between a cooked item such as fish and the flame formed on the grill burner, the front and back of the grill are reversed and both sides of the grill are reversed. When used, the horizontal bar is exposed on the upper surface side of the frame, so that it has the following problems when used in a grill or the like.
(1) When cooking oil or the like adheres to the superposed fixing portion of the grilled net and the horizontal bar, the oil or the like of the cooking product is formed in the recess formed between the horizontal bar and the frame in the superposing fixing portion. And so on, it sticks at the heating temperature, so even if you try cleaning with a sponge or scrubber to remove these deposits, the tip of the protruding horizontal bar is caught and is difficult to clean. Even if it takes time and effort to clean it, it cannot be removed cleanly, and the cleaning ability of the firewood grill is poor.

(2) The part where the end of the horizontal bar overlaps the frame may protrude, and there is a risk of accidental injury to the fingertips, etc. during cleaning or other handling of the grill. Attention is required.
(3) For safety reasons, in a grill that has both ends of the horizontal bar cut obliquely, after fixing a large number of horizontal bars to the frame by welding, an extra cut that cuts both ends of the horizontal bar obliquely Since a cutting work process is required, the manufacturing cost increases.
(4) A large number of horizontal bars are overlapped on the frame, and the ends of the horizontal bars are exposed, so that the entire grille feels rugged on both the front and back sides, and the appearance is poor.

  (5) On the other hand, by fixing the end face of the horizontal bar to the side surface of the frame by welding, the end of the horizontal bar does not overlap the frame and the end of the horizontal bar does not protrude. However, as in the prior art, a wire rod is formed in a substantially rectangular shape in advance to form a frame, and a horizontal bar is arranged between the opposing sides of the two opposite sides of the frame. Using the method of welding both end faces of the horizontal bar to the opposite sides of the two opposite sides of the body, there is some variation in the distance between the two opposite sides or the length of the horizontal bar is uneven. In such a case, there arises an inconvenience that the side surfaces of the two opposite sides and the end surface of the horizontal bar cannot be joined well by welding.

  An object of the present invention is to solve the above-mentioned problems, and to provide a suitable manufacturing method of a grill that is easy to clean, can be easily handled, and has a good appearance.

  A feature of the method of manufacturing a grill according to the present invention that solves the above-described problem is provided with a frame body made of a wire, and the frame body has two opposing sides and a connecting side that connects each of the two opposing sides. The horizontal bar to the inner side surface of the wire facing the inside facing the two opposite sides facing each other A method of manufacturing a grill which has the horizontal bar fixed to the two opposing sides by welding of both end surfaces of the horizontal bar, and is bent at a predetermined angle from the both end surfaces of the horizontal bar at a first distance. (1) The inner portion of the divided frame body is provided by using a divided frame body that is divided into two at a divided portion provided on the connection side. Projection welding is performed on both end surfaces of the horizontal bar provided with the first bent portion at the planned fastening position provided on the side surface. And (2) the predetermined angle at a position away from the first bent portion by a second dimension on the opposite side of the end surface of the horizontal bar. And a second bent portion having the same absolute value and bent in the opposite direction, and the divided portion of one of the divided frames and the divided portion of the other divided frame are opposed to each other. (2) connecting the divided portion of the one divided frame body and the divided portion of the other divided frame body to connect the side for connection. It is in the point which performs the side formation process for a connection to form.

  When the grill is manufactured in this way, the first bent portion is provided even if there is a manufacturing factor that causes a variation in the distance between the two sides facing each other or the length of the horizontal bar is uneven. Since the horizontal bar fixing step of fixing both end surfaces of the horizontal bar to the planned fixing positions provided on the inner side surface of the frame body by projection welding is performed, projection welding can be performed appropriately.

  That is, it is possible to appropriately manufacture a grill that is easy to clean, can be handled easily, and has a good appearance.

  Moreover, it is preferable that the said fixation plan position is the hole provided in the said inner surface of the said frame body of the division | segmentation state.

  By adopting this preferable configuration, a horizontal bar fixing process is performed in which both end surfaces of the horizontal bar provided with one bent portion are fixed by projection welding to the planned fixing positions provided on the inner side surface of the frame body. At this time, since both ends of the horizontal bar provided with one bent portion are guided by holes provided on the inner side surface of the frame body, the both ends of the horizontal bar are moved from the planned fixing positions when the horizontal bar fixing process is executed. Shifting is suppressed, and projection welding can be performed more appropriately.

  Further, when the second bent portion forming step is executed, a gap exists between the divided portion of the one divided frame and the divided portion of the other divided frame. In the connection side forming step, the one of the divided frame bodies and the other of the divided frame bodies are moved in a direction in which the gap decreases, It is preferable to connect the divided portion of the divided frame body and the divided portion of the other divided frame body by welding to form the connection side.

  By adopting this preferred manufacturing method, even if there is a manufacturing factor that causes variations in the distance between the two opposing sides, or the length of the horizontal bar is uneven, the frame in one divided state It is possible to appropriately perform the connection by forming the divided part of the body and the divided part of the other divided frame body by welding.

According to the method for manufacturing a grill according to the present invention, a grill that is easy to clean, can be easily handled, and has a good appearance can be properly manufactured.

1 is an external perspective view of a gas stove with a grill using a grill produced according to the present invention. It is a top view of the grill net manufactured by this invention. It is AA sectional drawing in FIG. 2A. It is (a) top view (b) side view of the frame of the division | segmentation state which comprises the grill net manufactured by this invention. It is a front view of a horizontal bar before a frame and a horizontal bar which constitute a heating net same as the above are welded. It is front sectional drawing of the location corresponded to XX in FIG. 2A in the middle of the manufacturing process of a grill net same as the above. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of a manufacturing process of a grill. It is front sectional drawing of the location corresponded to XX in FIG. 2A in the middle of the manufacturing process of a grill net same as the above. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of a manufacturing process of a grill. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of a manufacturing process of a grill. It is front sectional drawing of the location corresponded to XX in FIG. 2A in the middle of the manufacturing process of a grill net same as the above. It is a front sectional view of the location equivalent to AA in Drawing 2A before connecting the division location of the frame of the division state in the middle of the manufacturing process of a grill. It is a front sectional view of a portion corresponding to AA in FIG. 2A before mounting the frame for positioning the grill net. It is a front sectional view of a portion corresponding to AA in FIG. 2A before mounting a frame for positioning a grill of another embodiment. It is a perspective view of the support member with which the gas stove with a grill in which the grill made by the present invention is used is provided.

In order to further clarify the features and operations of the present invention described above, an example of an embodiment relating to a preferred method for manufacturing a grill according to the present invention will be described in detail with reference to the drawings.
Hereinafter, in this document, when front / rear / left / right are used to indicate directions, F in FIG. 2A indicates front, B indicates rear, LR1 indicates right, and LR2 indicates left.
The grill according to the present invention is used for the gas stove shown in FIG.
As shown in FIG. 2A, the grill A includes a frame 01 made of a wire (in this embodiment, a steel having a cross section of a diameter of 4 mm), and the frame 01 has two opposite sides 03. And a connection side 04 that connects each of the two opposite sides 03, and a large number of wires between the two opposite sides 03 (in this embodiment, a steel material having a circular cross section having a diameter of 2.5 mm). The horizontal bar 02 is constructed by welding the both end surfaces 06 of the horizontal bar 02 to the inner side surface 05 of the wire rod facing inwardly with the opposite two sides 03 facing each other. Is fixed to the two opposite sides 03. (See FIG. 2B.)
Note that the connection side 04 before and after the grill A is provided with a positioning frame 31, and in the region surrounded by the connection side 04 and the positioning frame 31, the gas stove shown in FIG. The convex sides 54 provided before and after the support member S (FIG. 10) provided in the grill cabinet are inserted, and the grill net A is stored in a predetermined position in the grill cabinet.

Hereinafter, the manufacturing process of the grill A will be described.
A first bent portion 081 that bends at a predetermined angle K is provided at a location separated from both end surfaces 06 of the horizontal bar 02 by the first dimension D1 (5 mm in the present embodiment),
The frame body 01 is divided into two parts at the divided portion 09 (FIGS. 2A and 2B) provided on the connection side 04, and the divided frame body 10 (FIG. 3) is used to manufacture as follows. .

  (1) A first bent portion 081 that is bent at a predetermined angle K (90 degrees in this embodiment) is provided at a planned fastening position 11 (FIG. 3) provided on the inner side surface 05 of the frame 10 in a divided state. A horizontal bar fixing process for fixing both end surfaces 06 of the horizontal bar 02 (FIG. 4) by projection welding is performed.

5A and 5B, both end surfaces 06 of the horizontal bar 02 (FIG. 4) provided with the first bent portion 081 are brought close to the expected fastening position 11 provided on the inner side surface 05 of the frame 10 in the divided state. Indicates.
FIG. 5B is an enlarged cross-sectional view of a welding point.
FIG. 6B shows an enlarged cross-sectional view of a planned welding position immediately before projection welding.
FIG. 6A shows a state when the horizontal bar fixing process is completed.
FIG. 6C shows an enlarged cross-sectional view of the welded portion at the time when the horizontal bar fixing process is completed.

In addition, in this embodiment, the fixed attachment position 11 is the hole 12 provided in the inner surface 05 of the frame 10 in the divided state, and the hole 12 is cut by a multi-axis drilling machine or forged by a forging press. Is provided by.
The point where the fastening position 11 is configured by the hole 12 provided in the inner side surface 05 of the divided frame body 10 is an arbitrary configuration, and the inner side surface 05 of the divided frame body 10 is formed by, for example, tapping processing or the like. The planned fastening position 11 may be constituted by the provided flat surface.

  (2) A predetermined angle K (in the present embodiment, in the second bar D2 (6 mm in the present embodiment) away from the first bent portion 081 on the side opposite to the end surface 06 of the horizontal bar 02 on the horizontal bar 02. 90 degrees) and a second bent portion 082 having the same absolute value and bent in the opposite direction, and a divided portion 09 of the frame 10 in one divided state and a divided portion 09 of the frame 10 in the other divided state, The 2nd bending part formation process which makes this face is performed.

FIG. 7 shows a state in which the divided portion 09 of the frame 10 in one divided state and the divided portion 09 of the frame 10 in the other divided state are approaching each other during the formation of the second bent portion 082.
In FIG. 8A, the second bent portion 082 is formed, and the divided portion 09 of the frame 10 in one divided state and the divided portion 09 of the frame 10 in the other divided state face each other with a gap 21 therebetween. Indicates.

(3) A connecting edge forming step of forming the connecting edge 04 by welding the dividing place 09 of the frame 10 in one divided state and the divided place 09 of the frame 10 in the other divided state by welding. Execute.
FIG. 8B shows a state after the connection side forming step is executed.

  8A, immediately before the connecting edge forming step in which the divided portion 09 of the frame 10 in one divided state and the divided portion 09 of the frame 10 in the other divided state face each other with a gap 21 therebetween. From the state of FIG. 8B to the state after execution of the connecting side forming step, that is, in the middle of the connecting side forming step, the frame 10 in one divided state and the frame in the other divided state 10 is moved in a direction in which the gap 21 decreases (a direction in which one divided frame 10 and the other divided frame 10 are brought closer to each other). At this time, the first bent portion 081 further moves. The second bent portion 082 is further bent, but the first bent portion 081 is further bent and the second bent portion 082 is not further bent.

[Another embodiment]
In the above embodiment, the predetermined angle K at which the first bent portion 081 and the second bent portion 082 are bent is 90 degrees, but the predetermined angle K may be an angle other than 90 degrees as shown in FIG. . Incidentally, in FIG.
In addition, in the connection side forming step, as shown in FIG. 8A, the divided portion 09 of the frame 10 in one divided state and the divided portion 09 of the frame 10 in the other divided state face each other with a gap 21 therebetween. The first bent portion 081 is further bent and the second bent portion 082 is further bent when the state from immediately before the connection side formation step is reached to the state after execution of the connection side formation step shown in FIG. 8B. In addition, a moment acting on the first bent portion 081 and the second bent portion 082 is necessary. In order to obtain this necessary moment, the frame 10 in one divided state and the frame 10 in the other divided state The force applied to one of the divided frame body 10 and the other divided frame body 10 in the direction in which the first bent portion and the second bent portion 082 are bent is 90 degrees at a predetermined angle K at which the first bent portion 081 and the second bent portion 082 are bent. The production equipment is simplified. For reduction, it is preferred that the first bent portion 081 and the second bent portion 082 is 90 degrees at a predetermined angle K to bend.

In the present embodiment, the first dimension D1 is 5 mm and the second dimension D2 is 6 mm. However, the first dimension D1 is not limited to 5 mm, and the second dimension D2 is not limited to 6 mm.
Further, the present invention is not limited to the above-described embodiment, and various applications and modifications can be added within the scope of the invention.

01 Frame body 02 Horizontal bar 03 Two opposing sides 04 Connection side 05 Inner side surface 06 End surface 081 of the horizontal bar First bent portion 082 Second bent portion 09 Divided portion 10 Divided frame 11 Fixed attachment position 12 Hole 21 gap 31 positioning frame 54 convex side A grill net D1 first dimension D2 second dimension K predetermined angle B rear F front LR1 right LR2 left S support member

Claims (3)

A frame made of a wire, and the frame includes two opposing sides and a connecting side that connects each of the two opposing sides;
A large number of horizontal bars are installed between the two opposing sides with a predetermined interval,
In the manufacturing method of the grill which the said horizontal bar is fixed to the said 2 opposite sides by welding of the both end surfaces of the said horizontal bar to the inner surface of the said wire which faces the two opposite sides facing each other There,
Providing a first bent portion that is bent at a predetermined angle at a position away from the both end faces of the horizontal bar by a first dimension;
The frame body is divided into two parts at the divided portions provided on the side for connection, using a frame body in a divided state,
(1) A horizontal bar fixing process is performed in which both end surfaces of the horizontal bar provided with the first bent portion are fixed by projection welding at a planned fixing position provided on the inner side surface of the divided frame. And
(2) A second bent portion formed by bending the horizontal bar in the opposite direction with the predetermined angle and the absolute value being equal to each other at a position away from the first bent portion by a second dimension on the opposite side to the end surface of the horizontal bar. And forming a second bent portion forming step of opposing the divided portion of one of the divided frame bodies and the divided portion of the other divided frame body,
(3) A connecting edge forming step of forming the connecting edge by connecting the divided portion of the one divided frame body and the divided portion of the other divided frame body. A method of manufacturing a grill net, which is performed.   The method for manufacturing a grill according to claim 1, wherein the fixed fastening position is a hole provided in the inner side surface of the frame body in the divided state. At the time when the second bent portion forming step is performed, there is a gap between the divided portion of the one divided frame and the divided portion of the other divided frame. Aside,
In the connection side forming step, the one divided frame body and the other divided frame body are moved in a direction in which the gap is reduced, and the one divided frame body is moved. 3. The grill according to claim 1 or 2, wherein the divided portion and the divided portion of the other frame in the divided state are connected by welding to form the connection side. Method.