JP6203587B2 - Fixing structure and hot water supply device - Google Patents

Description

  The present invention relates to a fixing structure and a hot water supply device, and more specifically, a fixing structure for fixing an object to be fixed to a fixing target, and a cover that is fixed to a box covering a pipe extending from the hot water supply device main body. The present invention relates to a water heater.

  In order to hide a plurality of pipes extending from the lower end of the water heater main body, a decorative cover (box) is provided below the water heater. A decorative cover is comprised from the casing comprised from the both sides | surfaces of a decorative cover, and the some beam which fixes these, and the cover which covers the front surface of a casing, for example. When the hot water supply device is installed outdoors, there is a risk that the cover may come off from the decorative cover (casing) and fall due to continuous vibration from wind or the like.

  Thus, for example, in the fixing structure disclosed in Patent Document 1, a protruding piece is provided upward on a beam (a bracket fixed to the beam) installed on the upper part of the casing, and the protruding piece is provided on the upper part of the cover. The cover is hooked on the casing by inserting it into the slit. In addition, a screw hole is provided in a beam (a bracket fixed to the beam) installed in the lower part of the casing. Therefore, the cover is further fixed to the casing by screwing a screw into the screw hole through an opening provided in the lower portion of the cover. However, in the fixing structure having the above-described configuration, when the piping cover of the hot water supply apparatus is fixed, the projecting piece provided on the beam upwards impairs the design aesthetics of the entire hot water supply apparatus.

  In addition, for example, the fixing structure disclosed in Patent Document 2 uses a fixture without providing a fixing structure on the cover, and hooks one end of the fixture to a fixed object and locks the other end with a screw. It is. However, the fixing structure having the above-described structure does not have a structure for stabilizing the latching portion, and is a structure used for a fixture with small vibration due to wind or the like, and can be used for a cover with large vibration due to wind or the like. It is not a thing.

  Due to the above circumstances, as a method of fixing the cover, conventionally, a substantially rectangular slit is provided on the lower surface of the cover, and a locking member provided on the lower part of the casing is inserted into the slit to lock, thereby positioning the lower part of the cover. It was. And a cover is fixed to a casing by screwing a screw in the screw hole provided in the upper part of the casing through the opening provided in the upper part of the cover. Screws can be removed by hand without using a tool because it is necessary to remove the cover easily for emergency stop of the gas valve and water valve housed in the casing or for repair work of the hot water supply device. Often used decorative screws.

  However, especially when the hot water supply device is installed outdoors, there is a limit to the torque value of hand tightening with decorative screws, so even if the cover is locked with a screw, the screw will loosen and the cover will be caused by vibrations such as strong winds. In some cases, the amplitude of exceeded the screw thread length. In this case, the screw falls and the cover is detached from the casing.

JP 2006-3000279 A Japanese Patent Application Laid-Open No. 08-042754

  The present invention provides a fixing structure in which the cover can be easily removed and the cover does not fall from the decorative cover (box), and a hot water supply device that can be used safely using this fixing structure. The task is to do.

The present invention is a fixing structure for fixing an object to be fixed to a fixing object, and the fixing object is provided with a first locking member having a distal end portion wider than a proximal end portion, and from the proximal end portion. Two second locking members having wide end portions are disposed with the first locking member sandwiched in the uniaxial direction that is the width direction of the first locking member, and the first portion of the fixed object The first slit is disposed to face the first locking member, and the two second slits are disposed to face the second locking member,
The first slit is connected to one side of a direction that intersects the uniaxial direction from the first hole and a width that is smaller than the distal end and is smaller than the proximal end. The second slit is formed to include the first hole and the second hole connected to the other side in the intersecting direction from the first hole. The first locking member is inserted into the first slit, the two second locking members are inserted into the two second slits, and the second to-be-fixed object separated from the first portion is inserted. The fixing object is fixed to the fixing object by detachably fixing a part to a facing part of the fixing object facing the second part.

  According to this, by inserting the locking member into the slit, the distal end portion of the locking member is locked by the edge of the slit, and the second portion of the fixed object is opposed to the fixing object. By fixing to a part so that attachment or detachment is possible, the said to-be-fixed object is fixed to the said fixed object.

  In the fixing structure according to the present invention, the first locking member may be configured such that the two second locking members face the first hole of the two second slits when the two second locking members face each other. It is arrange | positioned in the position facing a part.

  According to this, when the locking member is inserted into the slit to be fixed, at least one of the first locking member or the second locking member is locked in the second hole portion of the slit, The object to be fixed can be fixed to the object to be fixed without coming out of the slit.

  In the fixing structure of the present invention, the distal end of the first locking member is disposed further to the distal end side than the distal end of the second locking member in the length direction that is a direction from the proximal end portion toward the distal end portion. It is characterized by that.

  According to this, only the first locking member can be inserted into the slit. This effect will be described later.

  Further, in the fixing structure of the present invention, one of the first locking member and the second locking member is arranged such that the tip of the other is closer to the tip than the other tip in the length direction. The tip is arranged at a position corresponding to the one base end in the length direction.

  According to this, only one of the first locking member and the second locking member can be inserted into the first hole portion of the slit and moved to the second hole portion. This effect will be described later.

  In the fixing structure of the present invention, the first portion of the fixed object is formed of an elastic member, and when the fixed object is fixed to the fixing object, the fixed object is elastically deformed to One locking member is inserted into the first hole of the first slit, and the two second locking members are inserted into the first hole of the two second slits.

  According to this, when fixing a to-be-fixed object to fixation object, all the locking members can be inserted in the 1st hole part of a slit.

  In the fixing structure of the present invention, one side of the intersecting direction is equal to the direction of the object to be fixed from the object to be fixed, and the other side of the intersecting direction is the direction of the object to be fixed from the object to be fixed. It is equal to.

  According to this, it can fix so that a to-be-fixed object may cover one surface of fixation object.

  The fixing structure of the present invention is characterized in that the second part of the fixed object is fixed by screwing a screw into the facing part through an opening provided in the second part.

  According to this, the 2nd part of a to-be-fixed object can be detachably fixed to fixation object.

The present invention also includes a box having a hot water supply device main body, a main body that covers a pipe extending from the hot water supply device main body, and a cover that closes an opening provided in at least a part of the main body. ,
The hot water supply device according to claim 1, wherein the cover, which is the fixed object, is fixed to the main body, which is the fixing target, by the fixing structure according to claim 1.

  According to this, the cover can be used safely without dropping from the box.

  In the hot water supply apparatus of the present invention, the box is disposed below the hot water supply apparatus main body, and the locking portion and the slit are provided below the cover and the main body, respectively. .

  According to this, a cover can be attached to a main body so that inclination is possible centering on the lower end, and the upper part of a cover can be opened by it.

  According to the fixing structure of the present invention, the object to be fixed can be easily removed from the object to be fixed, and the object to be fixed falls off the object to be fixed even if the second part of the object to be fixed is released. It is possible to use it safely.

  Moreover, according to the hot water supply apparatus of the present invention, the fixed object of the present invention can be used safely without dropping the object to be fixed from the object to be fixed.

Drawing 1 (A) and (B) are the front views and side views showing the whole hot water supply device composition concerning one embodiment, respectively. FIG. 2 is an exploded perspective view showing a schematic configuration of a casing (main body) and a cover constituting a decorative cover according to an embodiment. FIG. 3A is a perspective view showing the slit, and FIGS. 3B and 3C are perspective views showing the relationship between the locking member and the slit. 4A to 4D are plan views showing the positional relationship between the locking member and the slit. FIG. 5A is a front view showing the locking member, and FIGS. 5B to 5E are plan views showing the positional relationship between the locking member and the slit. FIG. 6A is a front view showing the locking member, and FIGS. 6B to 6D are plan views showing the positional relationship between the locking member and the slit.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 shows a hot water supply apparatus 1 according to this embodiment. The hot water supply device 1 includes a hot water supply device main body 10 and a decorative cover 20.

  The hot water supply device main body 10 is, for example, disposed on the ground F outside the house via the legs 23, and the upper surface of the housing 11 is fixed to a wall surface W of a house or the like using an L-shaped fixture 13. . Here, piping 15 (shown using dotted lines in FIG. 1) for supplying hot water or the like indoors from the lower end of the hot water supply apparatus body 10 extends indoors through the wall surface W.

  FIG. 2 is an exploded perspective view of the decorative cover 20. The decorative cover 20 includes a casing (main body) 21 and a cover 22. In the figure, the casing (main body) 21 and the cover 22 are shown disassembled with respect to the reference axis L.

(Structure of fixed object)
The main body 21 includes two flat plate-like side surfaces 21d and three beams 21a, 21c, and 21g having attachment pieces at both ends. Here, two screw holes 21f are formed in the beam 21a. Two slits 21e are formed in the beam 21c.

  The two side surfaces 21d are arranged so that the inner surfaces are opposed to one side and the other side in the X-axis direction, and the front upper side (−Y, + Z side) ends of the front side lower side by the beam 21a. The ends on the (−Y, −Z side) are connected by a beam 21c, and the ends on the lower rear side (+ Y, −Z side) are connected by a beam 21g. The beams 21a and 21c and the beam 21g have one surface directed forward (−Y direction) and rearward (+ Y direction), the mounting piece is in contact with the inner surface of the side surface 21d, and a fixing tool such as a screw or a screw is used. It is fixed to the side surface 21d by welding. Note that the number, shape, material, and the like of the beam and the method of attaching to the side surface 21d are appropriately determined so as to obtain sufficient strength to support the side surface 21d.

  As shown in FIG. 1, the main body 21 is disposed under the hot water supply apparatus main body 10 (on the −Z side) so that the outer surfaces of the two side surfaces 21 d are substantially flush with the side surface of the housing 11 of the hot water supply apparatus main body 10. . Thereby, the piping 15 extending from the lower end of the water heater main body 10 is disposed indoors through the two side surfaces 21d vertically (Z-axis direction) and front-back (Y-axis direction). Become.

  A lower end surface 21h is provided on the front side (−Y side) at the lower end of the main body 21, and three locking members 21e are projected from the lower end surface 21h. The locking member 21e may be formed integrally with the lower end surface 21h by bending the -Y end of the lower end surface 21h in the + Z direction, or by fixing another member to the lower end surface 21h by welding or the like. It may be formed.

(Fixed object structure)
The cover 22 includes a front surface 22a, an upper surface 22b and a lower surface 22c, and a flange 22d.

  The front surface 22a is formed in a convex shape in the -Y direction. In the vicinity of the upper end (+ Z end) of the front surface 22a, two holes 22f for allowing the fixture (screw 31) to pass are provided as will be described later.

  The upper surface 22b and the lower surface 22c are substantially isosceles trapezoidal flat plates, and are respectively fixed to the upper end and the lower end of the front surface 22a. Three slits 22e are provided on the lower surface 22c. The structure of the slit 22e will be described later.

(Fixed structure)
FIG. 3 shows the locking structure 30. FIG. 3A shows a slit. The slit 22e has a substantially rectangular first hole 22e1 having a width s1, and a substantially rectangular second hole 22e2 having a width s2 continuous in a direction intersecting the width direction of the first hole. is there.

  FIG. 3B shows the locking member according to the slit. The locking member 21e has a substantially rectangular base end portion having a width t1 and a substantially isosceles trapezoidal tip portion having a width (length of the long bottom side) t2. s1, s2, t1, and t2 have a relationship of s1> t2> s2> t1. The tip portion passes through the first hole but does not pass through the second hole. The proximal end portion can be inserted into either the first hole portion or the second hole portion. The figure shows a state where the first end portion is passed through the first hole portion and the proximal end portion is inserted into the first hole portion.

  FIG. 3C shows the locking member according to the slit. Unlike FIG. 3B, the base end is inserted into the second hole. Since the distal end portion does not pass through the second hole portion, the locking member 21e does not come off the slit 22e from this state unless the proximal end portion moves to the first hole portion.

  FIG. 4 shows the positional relationship between the locking member and the slit. FIG. 4A shows the position of the locking member. Three locking members 21e are provided at the −Y end of the lower end surface 21h. The central locking member is a first locking member, and the locking members at both ends are second locking members. Each of the first locking member and the second locking member has a shape as shown in FIG. (The first locking member and the second locking member have the same shape.)

  FIG. 4B shows the position of the slit. Three slits 22e are provided on the lower surface 22c. The slit at the center is the first slit, and the slits at both ends are the second slit. The first slit and the second slit have opposite convex shapes. The first hole of the first slit and the first hole of the second slit have different Y coordinates. That is, a straight line parallel to the X axis does not pass through the first holes of all three slits.

  The procedure for attaching the cover 22 to the casing body 21 is as follows. First, the ± X ends of the cover 22 are grasped with both hands, and the three slits 22e are respectively disposed on the opposing locking members 21e.

  If the locking member and the slit are in the above positional relationship, the three locking members arranged in parallel to the X axis cannot be inserted into the first hole portions of the three slits as they are. Therefore, the lower surface 22c is elastically deformed by pulling the center of the cover 22 (lower surface 22c) in the -Y direction (or compressing the cover 22 so as to narrow the ± X ends). FIG. 4C shows the position of the slit after elastic deformation. Due to the elastic deformation, the locking members are located at the positions of the first holes of all three slits. In this state, the cover 22 is moved downward, and the three locking members are inserted into the first holes of the three slits. FIG. 4C depicts the degree of deformation (curvature) of the lower surface 22c larger than the actual degree in order to facilitate understanding.

  FIG. 4D shows the positional relationship between the locking member and the slit in a state where the elastic deformation has been eliminated. All of the three locking members are not arranged in the first holes of the three slits, and the cover 22 does not come off from the casing body 21.

  Even if the cover 22 moves due to an applied force, the cover 22 does not come off the casing body 21. For the force from the front or the back (which is considered to be caused by wind in the Y direction), one of the first locking member or the second locking member is arranged in the second hole of the facing slit. For a force rotating on the XY plane (which is considered to be caused by wind in the X direction), one of the two second locking members is disposed in the second hole portion of the facing slit.

  As described above, the distal end portion of the locking member 21e is locked in the Z-axis direction by inserting the locking member 21e into the slit 22e. Thereby, the locking member 21e (cover 22) does not come off from the lower end surface 21h (main body 21).

  By fixing the cover 22 to the main body 21 and closing the opening on the front surface of the main body 21 (side surface 21b) to form the decorative cover 20, the piping 15 extending from the lower end of the hot water supply apparatus main body 10 is hidden.

  Further, the three locking structures are linearly arranged between the cover 22 and the main body 21, and the cover 22 is tilted with respect to the main body 21 when the upper portion of the cover 22 is removed (rotates on the YZ plane). )be able to.

  In addition, when removing the cover 22 from the main body 21, it can remove easily by following a reverse procedure.

  As described above in detail, by using the fixing structure 30 according to the present invention, the locking member 21e is inserted into the slit 22e, so that at least one of the locking members 21e is the second hole portion of the slit 22e. The cover 22 is fixed to the casing (main body) 21 by detachably fixing the upper portion of the cover 22 to the main body. As a result, the cover 22 can be easily fixed to the casing (main body) 21, and the cover 22 does not fall from the casing (main body) even if the upper portion of the cover 22 is released, and can be used safely. It becomes possible to do.

    Further, in the decorative cover 20 of the present embodiment, the cover 22 can be tilted with respect to the main body 21. Therefore, when observation or simple maintenance of the piping 15 in the decorative cover 20 is required, the cover 22 is not removed from the main body 21, the screw 31 is removed and only the upper part of the cover 22 is removed, and the cover 22 is moved forward ( -Y side), and only the upper part can be opened for processing.

  Moreover, in the decorative cover 20 of the hot water supply device 1 of the present embodiment, the cover 22 (upper part) is detachably fixed to the main body 21 (beam 21a) using the screws 31, but the present invention is not limited to this, and the detachable cover can be attached. An appropriate fixing tool (fastener) may be used as long as it can be fixed.

  In the fixing structure of the present embodiment, three pairs of locking members 21e and slits 22e are used, but four or more pairs may be used. The number can be determined appropriately according to the required mounting strength. At this time, in view of attachment by elastic deformation and resistance to rotational force, it is preferable to provide one or more second slits at both ends and provide one or more first slits in the center between them.

  In the fixing structure of this embodiment, the cover 22 has elasticity. However, the locking member 21e may have elasticity, and the cover may be attached by moving the locking member back and forth.

  In addition, the decorative cover 20 of the hot water supply apparatus 1 of the present embodiment employs a configuration in which the front surface of the main body 21 is all open and the front surface is covered with the cover 22 having the same shape. It is also possible to adopt a configuration that is provided in a part and covers the opening using a cover having the same shape as the opening or a shape larger than that. Further, a configuration may be adopted in which the side surface, the rear surface, or the lower surface is opened instead of the front surface, and the one surface is covered with the cover 22.

  In the hot water supply apparatus 1 of the present embodiment, the decorative cover 20 is disposed under the hot water supply apparatus main body 10 in order to hide the piping 15 extending from the lower end of the hot water supply apparatus main body 10. The decorative cover 20 can be arranged according to the situation. For example, the decorative cover 22 may be disposed on the hot water supply apparatus main body 10.

  In addition, the fixing structure 30 of the present embodiment is not only usable in the decorative cover 20 of the hot water supply device 1 but can be used for anything that fixes an object to be fixed to an object to be fixed.

  In this embodiment, locking members having different lengths are used. Only the procedure for attaching the cover 22 to the casing body 21 is different from the first embodiment. This part will be described, and the other description is the same as that of the first embodiment, and will be omitted.

(One form)
FIG. 5A shows the locking member. The center of the figure is a first locking member 21e1, and both ends are second locking members 21e2. The distal end of the first locking member 21e1 is disposed more distal than the distal end of the second locking member 21e2. The base end portion of the first locking member 21e1 is longer than the base end portion of the second locking member 21e2.

  The procedure for attaching the cover 22 to the casing body 21 is as follows. First, the ± X ends of the cover 22 are grasped with both hands, and the three slits 22e are respectively disposed on the opposing locking members 21e.

  In this state, the tip of the first locking member 21e1 is inserted into the first hole of the first slit. FIG. 5B shows the state after insertion. In the drawing, only the locking members inserted into the slits are shown, and those below the lower surface 22c that are not inserted into the slits are not shown. (The same applies to FIGS. 5C to 5E and FIGS. 6B to 6D.)

  Therefore, compression is performed so that the ± X ends of the cover 22 are narrowed, and the lower surface 22c is elastically deformed. FIG. 5C shows the position of the slit after elastic deformation. Due to the elastic deformation, the locking members are located at the positions of the first holes of all three slits. Since the tip of the first locking member 21e1 is inserted into the first hole of the first slit and the position of the first slit is fixed, it is easier to align the positions of the three slits by elastic deformation than in the first embodiment. It is. In this state, the cover 22 is moved downward, and the three locking members are inserted into the first holes of the three slits. FIG. 5D shows the slit and the locking member after insertion.

  FIG. 5E shows the positional relationship between the locking member and the slit in a state where elastic deformation has been eliminated. All of the three locking members are not arranged in the first holes of the three slits, and the cover 22 does not come off from the casing body 21.

(Other forms)
FIG. 6A shows the locking member. The center of the figure is a first locking member 21e1, and both ends are second locking members 21e2. The distal end of the first locking member 21e1 is disposed more distal than the distal end of the second locking member 21e2. The base end portion of the first locking member 21e1 is longer than the base end portion of the second locking member 21e2.

  The difference from the above-described embodiment is that the base end portion of the first locking member 21e1 is sufficiently longer than the base end portion of the second locking member 21e2, and the tip end of the second locking member 21e2 is the first locking member 21e1. It is arrange | positioning in the position corresponding to the base end part. Accordingly, the base end portion of the first locking member 21e1 can be moved to the second hole portion of the first slit without inserting the second locking member 21e2 into the slit.

  The procedure for attaching the cover 22 to the casing body 21 is as follows. First, the distal end of the first locking member 21e1 is inserted into the first hole of the first slit (see FIG. 6B), and the proximal end of the first locking member 21e1 is inserted into the second hole of the first slit. (See FIG. 6C).

  Thereafter, the cover 22 is moved downward, and the second locking member is inserted into the first hole of the second slit. This operation can be performed without elastically deforming the lower surface 22c.

  FIG. 6D shows the positional relationship between the locking members and the slits with all the locking members inserted. All of the three locking members are not arranged in the first holes of the three slits, and the cover 22 does not come off from the casing body 21.

  The example of three locking members and slits has been described above. However, since the present embodiment does not require elastic deformation, it can be applied to four or more locking members and slits. Further, since the present invention can be applied without depending on the position of the locking member, it is possible to lengthen the second locking member 21e2 instead of the first locking member 21e1.

  The fixing structure of the present invention is suitable for fixing an object to be fixed to an object to be fixed. Moreover, the hot water supply device of the present invention can be easily removed without dropping the decorative cover that hides the pipe extending from the hot water supply device body, and is suitable for safe use.

DESCRIPTION OF SYMBOLS 1 ... Hot-water supply apparatus 10 ... Hot-water supply apparatus main body 15 ... Pipings 20 ... Cosmetic cover 21 ... Casing (main body)
21a, 21c, 21g ... beam 21b ... side surface 21d ... side surface 21e ... locking member 21f ... screw hole 21h ... lower end surface 22 (22a, 22b, 22c, 22d) ... cover (front, top, bottom, side)
22e ... Slit 22f ... Hole for fixture 30 ... Locking structure 31 ... Screw

Claims (9)

A fixing structure for fixing an object to be fixed;
The fixing object is provided with a first locking member having a distal end portion wider than a base end portion, and two second locking members having a distal end portion wider than the base end portion are arranged in the first engagement. It is disposed across the first locking member in the uniaxial direction that is the width direction of the stopping member,
In the first portion of the fixed object, a first slit is disposed to face the first locking member, and two second slits are disposed to face the second locking member,
The first slit is connected to one side of a direction that intersects the uniaxial direction from the first hole and a width that is smaller than the distal end and is smaller than the proximal end. And a second hole portion having a large size,
The second slit is formed to include the first hole and the second hole connected to the other side in the intersecting direction from the first hole.
The first locking member is inserted into the first slit, the two second locking members are inserted into the two second slits, and the second portion of the fixed object that is separated from the first portion is The fixing structure is fixed to the object to be fixed by removably fixing to a facing portion of the fixing object facing the second portion.   The first locking member is disposed at a position facing the second hole of the first slit when the two second locking members are opposed to the first hole of the two second slits. The fixing structure according to claim 1, wherein:   The distal end of the first locking member is disposed further to the distal end side than the distal end of the second locking member in a length direction that is a direction from the proximal end portion toward the distal end portion. 2. The fixing structure according to 2. Either one of the first locking member and the second locking member is disposed on a more distal side than the other tip in the length direction;
The fixing structure according to claim 2, wherein the other tip is disposed at a position corresponding to the one base end in the length direction. The first portion of the fixed object is composed of an elastic member,
When the object to be fixed is fixed to the object to be fixed, the object to be fixed is elastically deformed and the first locking member is inserted into the first hole of the first slit, and the two second The fixing structure according to claim 1, wherein a locking member is inserted into the first hole portion of the two second slits. One side of the intersecting direction is equal to the direction of the object to be fixed from the object to be fixed,
The fixing structure according to claim 1, wherein the other side of the intersecting direction is equal to the direction of the object to be fixed from the fixing object.   The second part of the fixed object is fixed by screwing a screw into the facing part through an opening provided in the second part. The fixing structure according to the item. A water heater main body,
A box having a main body covering a pipe extending from the hot water supply apparatus main body, and a cover for closing an opening provided in at least a part of the main body,
The hot water supply apparatus according to claim 1, wherein the cover, which is the fixed object, is fixed to the main body, which is the fixing target, by the fixing structure according to claim 1. The box is disposed under the hot water supply device body,
The hot water supply apparatus according to claim 8, wherein the locking portion and the slit are provided below the cover and the main body, respectively.