JP6650790B2 - How to make a grill - Google Patents

Description

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

2. Description of the Related Art Conventionally, a grill of this type, which is used by being placed on a saucer such as a grill, is made of a wire. (See, for example, Patent Literature 1).
The wire is formed in a substantially rectangular shape in advance to form a frame, and the upper surface near both end surfaces of the horizontal bar is overlapped and welded to the lower surface of the two opposing sides of the frame, whereby each of the two opposing sides is formed. Even if there is some variation in the distance between them or the length of the horizontal bar is irregular, it is convenient because the joint between the two opposing sides and the horizontal bar can be satisfactorily welded.

JP 2001-353081 A

However, in such a conventional grill, for example, in order to adjust a distance between a cooked object such as fish and a flame formed on a grill burner, the grill is turned upside down and both sides of the grill are inverted. Is used, since the horizontal bar is exposed on the upper surface side of the frame, there is the following problem when used in a grill or the like.
(1) When cooking oil or the like adheres to the superimposed fixed portion of the grill frame and the horizontal bar, the oil or the like is deposited in the recess formed between the horizontal bar and the frame in the superposed fixed portion. Etc., which are trapped and stuck at the heating temperature. Even if it takes time and effort to clean it, it cannot be removed cleanly, and the cleaning performance of the grill is extremely poor.

(2) The part where the end of the horizontal bar overlaps the frame may project, and this projection may cause injuries to fingertips and the like during cleaning and other handling of the grill. Need attention.
(3) In the case of a grill which has both ends of the horizontal bar obliquely cut for safety, an extra number of horizontal bars are cut obliquely after a number of horizontal bars are fixed to the frame by welding. Since a cutting process is required, the manufacturing cost is increased.
(4) Since a large number of horizontal bars are superimposed on the frame, and the ends of the horizontal bars are exposed, the entire grill becomes 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 with the frame, and the end of the horizontal bar does not project. However, it is conceivable that a frame is formed by forming a wire into a substantially rectangular shape in advance as in the related art, and a horizontal bar is arranged between two opposing sides of the frame body facing each other. If the method of welding the both end surfaces of the horizontal bar to the mutually facing side surfaces of the two opposing sides of the body is used, there is a slight variation in the distance between the two opposing sides and an uneven length of the horizontal bar. In such a case, there arises a problem that the joint between the two opposing side surfaces and the end surface of the horizontal bar cannot be satisfactorily welded.

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

  A feature of the method for manufacturing a grid according to the present invention that solves the above-mentioned problem is that the frame includes a frame made of a wire, and the frame has two sides facing each other and a connection side connecting each of the two sides facing each other. A plurality of horizontal bars are installed at a predetermined interval between the two opposite sides, and the horizontal bars are connected to the inner side surface of the wire rod facing the inside facing the two opposite sides to each other. A method of manufacturing a grill grid in which the horizontal bar is fixed to the two opposing sides by welding both end surfaces of the horizontal bar, wherein the horizontal bar is bent at a predetermined angle to a position separated by a first dimension from the both end surfaces of the horizontal bar. A first bent portion is provided, and the frame body is divided into two at a division point provided on the connection side, and a divided frame body is used. (1) The inner part of the divided frame body Both end surfaces of the horizontal bar provided with the first bent portion are provided at projection fixing positions provided on side surfaces by projection welding. (2) The horizontal bar is fixed to the horizontal bar at a position separated from the first bent portion by a second dimension on the side opposite to the end face of the horizontal bar. And a second bent portion having an absolute value equal to and bent in the opposite direction to form a second bent portion in which one of the divided frames of the divided frame faces the divided portion of the other divided frame. 2) performing a bent portion forming step, and (3) connecting the divided portion of the one of the divided frames to the divided portion of the other of the divided frames to form the connection side. The point is to execute a connection side forming step.

  When the grill is manufactured in this manner, the first bent portion is provided even if there is a manufacturing factor in which the distance between the two opposing sides varies, or if the length of the horizontal bar is irregular. Since the horizontal bar fixing step is performed in which the both end surfaces of the horizontal bar are fixed to the predetermined fixing positions provided on the inner side surface of the frame body by projection welding, the projection welding can be appropriately performed.

  That is, it is easy to clean, easy to handle, and it is possible to appropriately manufacture a grill with good appearance.

  Further, it is preferable that the predetermined fastening position is a hole provided in the inner side surface of the frame body in the divided state.

  By adopting this preferred configuration, a horizontal bar fixing step is performed in which both end surfaces of the horizontal bar having the one bent portion are fixed to expected fixing positions provided on the inner side surface of the frame by projection welding. 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, both ends of the horizontal bar are set at positions to be fixed when executing the horizontal bar fixing step. The displacement is suppressed, and the projection welding can be performed more appropriately.

  Further, at the time when the second bent portion forming step is performed, there is a gap between the divided portion of the one of the divided frames and the divided portion of the other of the divided frames. In the connection side forming step, the one of the divided frames and the other of the divided frames are moved in a direction in which the gap decreases, and the one of the one It is preferable that the divided part of the frame in the divided state and the divided part of the other frame in the divided state are connected by welding to form the connection side.

  By adopting this preferred manufacturing method, even if there is a manufacturing factor in which the distance between the two opposing sides varies, or the length of the horizontal bar is irregular, the frame in one of the divided states It is possible to properly connect the divided portion of the body and the divided portion of the frame body in the other divided state by welding to form a connection side.

ADVANTAGE OF THE INVENTION According to the manufacturing method of the grill of this invention, it is easy to clean, it can handle easily, and the grill with good appearance can be manufactured appropriately.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view of the gas stove with a grill which uses the grill screen manufactured by this invention. FIG. 2 is a plan view of a grill manufactured according to the present 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 produced by this invention. It is a front view of the horizontal bar before the frame and the horizontal bar which comprise the same grid are welded. FIG. 2B is a front sectional view of a portion corresponding to XX in FIG. 2A during the manufacturing process of the above grill. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of the manufacturing process of the same grill. FIG. 2B is a front sectional view of a portion corresponding to XX in FIG. 2A during the manufacturing process of the above grill. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of the manufacturing process of the same grill. It is an expanded sectional view of the welding part of a frame and a horizontal bar in the middle of the manufacturing process of the same grill. FIG. 2B is a front sectional view of a portion corresponding to XX in FIG. 2A during the manufacturing process of the above grill. FIG. 2B is a front cross-sectional view of a portion corresponding to AA in FIG. 2A before connecting the divided portions of the frame body in the divided state during the manufacturing process of the above-described grill. FIG. 2B is a front cross-sectional view of a portion corresponding to AA in FIG. 2A before a frame for positioning the grille is mounted. FIG. 2B is a front sectional view of a portion corresponding to AA in FIG. 2A before mounting a positioning frame of a grill according to another embodiment. It is a perspective view of the support member with which the gas stove with a grill using the grill manufactured by this invention is used.

In order to further clarify the features and operations of the present invention described above, an example of an embodiment of a preferred method of manufacturing a grill according to the present invention will be described in detail with reference to the drawings.
Hereinafter, in this document, when directions are used to indicate front, rear, left and right, F in FIG. 2A indicates forward, B indicates backward, LR1 indicates right, and LR2 indicates left.
The grill manufactured according to the present invention is used for a gas stove shown in FIG.
As shown in FIG. 2A, the configuration of the grill net A includes a frame body 01 made of a wire (in the present embodiment, a steel material having a circular cross section of 4 mm in diameter). And a connection side 04 for connecting each of the two opposing sides 03, and a large number of wires (a steel material having a circular cross section of 2.5 mm in diameter in the present embodiment) between the two opposing sides 03. Of the horizontal bar 02 is welded to the inner side surface 05 of the inwardly facing wire rod with two opposing sides 03 facing each other at predetermined intervals. Are fixed to the two opposite sides 03. (See FIG. 2B.)
The connection side 04 before and after the grill A is provided with a positioning frame 31, and a region surrounded by the connection side 04 and the positioning frame 31 is provided with a gas stove shown in FIG. 1. The convex sides 54 provided before and after the support member S (FIG. 10) provided in the grill storage are inserted, and the grill A is stored in a predetermined position in the grill storage.

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

  (1) The first bent portion 081, which is bent at a predetermined angle K (90 degrees in the present embodiment), is provided at the scheduled fastening position 11 (FIG. 3) provided on the inner side surface 05 of the divided frame body 10. A horizontal bar fastening step of fastening both end surfaces 06 of the horizontal bar 02 (FIG. 4) by projection welding is performed.

5A and 5B, a state in which both end surfaces 06 of the horizontal bar 02 (FIG. 4) provided with the first bent portion 081 are brought closer to the scheduled fastening position 11 provided on the inner side surface 05 of the frame body 10 in the divided state. Is shown.
FIG. 5B is an enlarged sectional view of a welding point.
FIG. 6B shows an enlarged cross-sectional view of a portion to be welded immediately before projection welding.
FIG. 6A shows a state at the time of completion of the horizontal bar fixing step.
FIG. 6C shows an enlarged cross-sectional view of the welding portion in a state at the time of completion of the horizontal bar fixing step.

In the present embodiment, the fastening scheduled position 11 is the hole 12 provided on the inner side surface 05 of the frame body 10 in the divided state, and the hole 12 is formed by cutting using a multi-axis drilling machine or forging using a forging press. Provided by
The hole 12 provided on the inner surface 05 of the frame 10 in the divided state constitutes the fastening expected position 11 in an arbitrary configuration. For example, the inner surface 05 of the frame 10 in the divided state is formed by beating. The scheduled fastening position 11 may be constituted by the provided flat surface.

  (2) A predetermined angle K (in the present embodiment, at a position separated from the first bent portion 081 by a second dimension D2 (6 mm in the present embodiment) on the opposite side to the end surface 06 of the horizontal bar 02 from the first bent portion 081, (90 degrees) and a second bent portion 082 having an absolute value equal to the absolute value and bent in the opposite direction to form 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. Are performed to form a second bent portion forming step.

FIG. 7 shows a state in which the dividing point 09 of the frame body 10 in one divided state and the dividing point 09 of the frame body 10 in the other divided state are approaching while the second bent portion 082 is being formed.
FIG. 8A shows a state in which 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. Is shown.

(3) A connection side forming step of forming a connection side 04 by connecting the division part 09 of the frame body 10 in one division state and the division part 09 of the frame body 10 in the other division state by welding. Execute
FIG. 8B shows a state after the execution of the connection side forming step.

  Immediately before the connection side forming step, as shown in FIG. 8A, the division part 09 of the frame body 10 in one division state and the division part 09 of the frame body 10 in the other division state face each other with a gap 21 therebetween. From the state shown in FIG. 8B to the state after execution of the connection side forming step shown in FIG. 8B, that is, in the middle of the connection side forming step, the frame body 10 in one divided state and the frame body in the other divided state 10 is moved in a direction in which the gap 21 is reduced (a direction in which the frame body 10 in one divided state and the frame body 10 in the other divided state are brought closer to each other), and at this time, the first bent portion 081 is further moved. It bends and the second bent portion 082 is further bent, but there is no problem that the first bent portion 081 is further bent and the second bent portion 082 is 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 set to 90 degrees. However, as shown in FIG. 9, the predetermined angle K may be set to an angle other than 90 degrees. . By the way, FIG.
In the connection side forming step, the division part 09 of the frame body 10 in one division state and the division part 09 of the frame body 10 in the other division state face each other with a gap 21 shown in FIG. 8A. 8B, the first bent portion 081 is further bent and the second bent portion 082 is further bent from the state immediately before the connection side forming step to the state after the connection side forming step shown in FIG. 8B. Needs a moment acting on the first bent portion 081 and the second bent portion 082. In order to obtain the required moment, the frame 10 in one divided state and the frame 10 in the other , The force applied to the frame body 10 in one of the divided states and the frame body 10 in the other divided state is such that the predetermined angle K at which the first bent part 081 and the second bent part 082 bend is 90 degrees. Is the minimum when 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, but 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 embodiment, and various applications and modifications can be made within the scope of the invention.

01 Frame body 02 Horizontal bar 03 Opposite two sides 04 Connection side 05 Inner surface 06 Horizontal bar end surface 081 First bent portion 082 Second bent portion 09 Splitting point 10 Splitting frame 11 Scheduled fastening position 12 Hole 21 gap 31 positioning frame 54 convex side A grid 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 rod, wherein the frame includes two opposing sides and a connection side connecting each of the two opposing sides;
A number of horizontal bars are erected at predetermined intervals between the two opposing sides,
A method for manufacturing a grid, in which the horizontal bar is fixed to the two opposing sides by welding the two end surfaces of the horizontal bar to the inner side surface of the wire facing the inside where the two opposing sides face each other. So,
A first bent portion bent at a predetermined angle is provided at a position separated by a first dimension from the both end surfaces of the horizontal bar,
The frame body is divided into two at a division location provided on the side for connection, using a frame body in a divided state,
(1) A horizontal bar fastening step of fastening both end surfaces of the horizontal bar provided with the first bent portion to projection fixing positions provided on the inner side surface of the frame body in the divided state by projection welding. And
(2) A second bent portion in which the predetermined angle and the absolute value are bent in the opposite direction at a position apart from the first bent portion by a second dimension on the side opposite to the end face of the horizontal bar from the first bent portion. Forming a second bent portion forming step of making the divided portions of the frame in one of the divided states face the divided portions of the frame in the other divided state,
(3) a connection side forming step of forming the connection side by connecting the divided portion of the one divided frame and the divided portion of the other divided frame. A method for manufacturing a grill, which is performed.   2. The method according to claim 1, wherein the fixing position is a hole provided in the inner surface of the divided frame. 3. At the time when the second bent portion forming step is performed, a gap is provided between the divided portion of the one of the divided frames and the divided portion of the other of the divided frames. Aside
In the connection side forming step, the one of the divided frames and the other of the divided frames are moved in a direction in which the gap decreases, and the one of the divided frames is moved. 3. The grid according to claim 1, 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. 4. Method.