JP5221581B2 - Retrofitting electric warmer for chair - Google Patents

Description

  The present invention relates to a retrofit electric warming tool for a chair that can heat a lower body and / or an upper body of a person seated in a chair for one person.

  JP-A-2006-141739 and utility model registration No. 3023445 have been proposed as heaters that can heat the lower (foot) space of a person seated on a chair for one person, and these are publicly known that most closely approximate the present invention. It is considered to be technology.

JP 2006-141739 A Utility Model Registration No. 3023445

  However, in the chair with a floor heating function described in Patent Document 1, the slide rail (10) for hanging the panel (40) in which the sheet heating sheet (14) is built, and the panel (40) are taken in and out. For this purpose, a cabinet (16) and a storage case (3) for taking up and storing the panel (40) and folding and storing the panel (40) are specially required, resulting in a special and expensive chair.

  In this regard, the knee heater described in Patent Document 2 can be installed on the chair (12) as shown in FIGS. 3, 5, and 6 using a magnet clip (8) or double-sided adhesive tape. It is impossible to directly heat the buttocks of the person seated at (12), and the foot space is only warmed by radiant heat.

  In any case, Patent Documents 1 and 2 do not describe that the upper body from the bottom to the back of a person seated in the chair can be heated, and is versatile and convenient for use on the chair. It is inferior to.

SUMMARY OF THE INVENTION The present invention aims to improve such a problem, and in order to achieve the object, in claim 1, a substantially rectangular outline electric power having a certain band width and length corresponding to the seat surface of a chair is provided. It consists of a blanket and a soft sachet that houses the electric blanket,

A large number of linear slits for bending and locking the heater wire are cut into the front nonwoven fabric and / or the back nonwoven fabric , which is the batting of the electric blanket, and the middle part of one flexible heater wire is linear. By bending and locking so as to repeatedly put in and out of the slit, the heater wire is wired in an overall meandering form,

While a pair of front and back of the nonwoven fabric in a sandwiched state of the wired heater wires, the heater wires are fixed and integrated linearly between adjacent heater wires,

The wrapping bag is sewed into a substantially rectangular outline shape from the front and back cloths, and an electric blanket outlet / outlet, an opening / closing fastener for the inlet / outlet, and a connector receiver on the electric blanket side are attached to the front or back cloth. Each has a window to be exposed,

The electric blanket is detachably accommodated from the electric blanket outlet, and the connector on the control unit side is detachably inserted and connected from the exposure window to a connector receptacle having a heater wire connection terminal in the electric blanket. ,

The electric blanket is accommodated using a binding string of an appropriate length that is detachably inserted into a pair of rivets scattered in the four corners and middle part of the wrapping bag as upper, middle, and lower. The lower body of a person seated in a one-seat chair by fastening the wrapping bag to the pedestal, backrest or other part of the chair and energizing the heater wire of the electric blanket from the plug of the control unit Or / and heating the upper body.

According to the said structure of Claim 1, since one flexible heater wire was pinched | interposed and integrated as a wiring form of the whole meandering in a pair of front and back nonwoven fabric used as the batting of an electric blanket, it is heat_generation | fever from a heater wire. The two non-woven fabrics can maintain an effective heat insulation state, and the so-called stiffness and flexibility of the non-woven fabric are less likely to cause wrinkles and shrinkage. A rich electric warmer can be obtained.

In addition, the tying string of the wrapping bag containing such an electric blanket is fastened to the pedestal and back of the chair for one person, and other parts, and the plug of the control unit is inserted into the power outlet. Then, by energizing the heater wire of the electric blanket, heat can be transferred to the lower body and / or upper body of the person seated in the chair, so that it can be heated directly. Excellent.

In particular, the front side nonwoven fabric and / or the back side nonwoven fabric serving as a blanket for an electric blanket are cut into a large number of linear slits for bending and locking the heater wire, and the middle part of one flexible heater wire is slit. Since the heater wire is wired in an overall meandering manner by being bent and locked so as to be repeatedly put in and out, the wiring can be performed conveniently, and the pair of front and back of the nonwoven fabric are adjacent to each other. Since they are linearly fixed to each other, there is no danger of positional deviation or contact between the wired heater wires, and there is also an effect that the both non-woven fabrics can be held in a safe and secure sandwiched and locked state.

Furthermore, the wrapping bag is sewed into a substantially rectangular outline from a soft skin and back skin, and an electrical blanket outlet and opening / closing fastener for the outlet and a connector on the side of the electrical blanket and a connector on the side of the electrical blanket A window for exposing the receptacle is provided, and an electric blanket can be inserted and removed freely from the outlet for the electric blanket, and the connector on the control unit side can be removably inserted into the connector receptacle on the electric blanket side. As a result, the electric blanket can be easily and inexpensively produced, and there is also an effect that the replacement and washing can be performed conveniently.

It is a perspective view which shows the retrofit type electric heating tool to the chair which concerns on this invention. It is a top view of the state which similarly accommodated the electric blanket of the electric warming tool. FIG. 3 is a partial enlarged cross-sectional view taken along the line 3-3 in FIG. 2. It is a partial expanded slope figure which extracts and shows an electric blanket. It is a partial expanded sectional view which follows the 5-5 line of FIG. It is a top view which shows the wiring pinching state of the heater wire by a nonwoven fabric. FIG. 7 is a partial enlarged cross-sectional view taken along line 7-7 in FIG. 6. It is a structural diagram which shows and shows a heater wire. It is a side view which shows the heating state of the upper body by use of this invention. It is a side view which shows the heating state of the lower half body by use of this invention. It is a side view which shows the heating state of the upper body and lower body by use of this invention. It is a side view which shows the heating state of the upper body and lower body by use of another this invention.

Hereinafter, based on the illustrated embodiment, the specific configuration of the present invention will be described in detail. The retrofitted electric warming device for the chair according to the present invention is a substantially rectangular soft wrapping bag (B ) And an electric blanket (A) accommodated in the interior of the bag (B) so that it can be freely inserted into and removed from the interior. An insertion plug, which will be described later, can be used by inserting it into an indoor power outlet.

First, the electric blanket (A) includes a front fabric (11a) and a back fabric (11b) made of polyester and other synthetic fibers, and non-woven fabrics (12a) (12b) as batting interposed between the front and back surfaces, and the non-woven fabric. (12a) A seat surface of a single-seat chair (C) provided with a heater wire (H) wired in an overall meandering manner by being bent and locked to either or both of the front and back sides of (12b) And a constant band width (W) (for example, about 450 mm), an appropriate constant length (L) (for example, about 850 to 1350 mm) and a constant thickness (T) (for example, about 10 mm).

The heater wire (H) is a one-wire type for an electric blanket, and as shown in FIG. 8, a heating element wire (14) is spirally wound around a core yarn (13), and a melt fault ( An insulator) (15) is provided, a detection line (thermosensitive wire) (16) is spirally wound around the molten fault (15), and an outermost layer (insulating skin) (17) is provided on the outer peripheral surface. There is a flexible string with a standard outer diameter of about 2.1 to 2.5 mm.

The core yarn (13) is made of polyester fiber, polyamide fiber, etc. and exhibits excellent flexibility, so it can be used as a retrofitting electric warming tool for the chair (C), but the heater wire (H) is disconnected. There is no risk.

The molten fault (insulator) (15) is made of nylon, polyamide resin, PET resin, or the like, which melts when abnormal heat is generated, and performs a fuse function when abnormal heat is generated. The heating element wire (14) and the detection wire (16) are a copper rectangular wire, a copper alloy rectangular wire, and the like, and a heater is utilized by utilizing the resistance value change of the metal resistance wire used for the detection wire (16). The temperature of the line (H) is controlled. The outermost layer (insulating skin) (17) is made of a heat-resistant polyvinyl chloride resin or the like.

The pair of front and back nonwoven fabrics (12a) and (12b), which become the batting of the electric blanket (A), is preferably composed of a polyester fiber as a main component, preferably in a lattice network shape, and either one of the front and back nonwoven fabrics (the back side in the illustrated example). In (12b), a number of linear slits (18) that repeatedly bend and lock the middle part of the heater wire (H) and restrict the wiring to an overall meandering form are formed by a press machine or a cutter knife as shown in FIG. It has been cut as in ~ 6.

Then, it is bent and locked so that one heater wire (H) is repeatedly put in and out of the linear slit (18) of the back nonwoven fabric (12b), and the whole meandering as shown in FIGS. The heater wire (H) is covered with the non-woven fabric (12a) on the other side (front side in the illustrated example), and is sandwiched between the pair of non-woven fabrics (12a) and (12b). However, as long as the heater wire (H) can be sandwiched, the linear slit (18) for bending and locking the heater wire (H) can be cut into the nonwoven fabric (12a) (12b) on both the front and back sides. good.

(19) is a number of parallel fixing lines that prevent misalignment and contact between the heater wires (H) in such a wiring state, and between the adjacent meandering heater wires (H), As shown in FIGS. 4 to 7, the pair of front and back nonwoven fabrics (12a) and (12b) are fixedly integrated by a heat welding method, a high frequency (ultrasonic) welder method, a hot melt bonding method, sewing, and the like. However, as a manufacturing process, it is desirable to wire such heater wires (H) between the adjacent wires after arranging such fixed wires (19) in a row.

Further, the front and back fabrics (11a) and (11b) of the electric blanket (A) and the pair of front and back nonwoven fabrics (12a) and (12b) are bordered along a substantially rectangular peripheral edge by a certain width. It is bonded or welded, and is stitched and integrated to contain the heater wire (H). (20) shows the bonded part or welded part, and (21) shows the stitched part.

The non-woven fabrics (12a) and (12b) that become the batting of the electric blanket (A) have durability and flexibility, so-called stiffness, and thus do not cause wrinkles or expansion / contraction. In addition, since there is also a heat retaining property that accumulates warm air between the polyester fibers of the nonwoven fabrics (12a) and (12b), when the electric blanket (A) is twisted, the heater wires (H) touch each other, resulting in abnormally high temperatures. The risk of doing so can also be prevented.

(22) is a connector receptacle (plug) provided with connection terminals (heat generating wire and detection wire pin terminals) (23a) (23b) of the heater wire (H), and as shown in FIGS. The unit (U) is detachably inserted into the connector (24). (25) is a slide lever type or rotary dial type operation knob of the control unit (U), which can turn on / off the power and adjust the temperature of the heater wire (H). . (26) is an insertion plug to a power outlet (AC100V).

Next, as shown in FIGS. 1 to 3, the wrapping bag (B) is sewed into a size and contour shape capable of accommodating the electric blanket (A) from the soft front cloth (27a) and the back cloth (27b). An open / close fastener (29) is attached to the electric blanket slot (28) cut out substantially parallel to the short side of the front cloth (27a) or the back cloth (27b). (30) is a window for exposing the connector receiver (22) on the electric blanket (A) side, and the connector (24) on the control unit (U) side is externally connected to the connector receiver (22) through the window (30). ) Will be plugged in and connected.

Similarly, a pair of rivets (eyelets) (31a) and (31b), which are distributed as upper, middle and lower parts, are caulked at the four corners and the middle of the wrapping bag (B). The wrapped bag (B) in which the electric blanket (A) is accommodated is attached to the chair (C) as shown in FIGS. It can be fastened to the seat surface (33), its pedestal (34), the backrest (35) strut (36), the armrest (37) strut (38), and other parts.

In that case, the electric blanket (A) in which the heater wire (H) is sandwiched between the pair of front and back nonwoven fabrics (12a) and (12b) and the wrapping bag (B) are flexible and can be folded freely. Can be bent.

When the electric warming tool of the present invention is retrofitted to a chair (C) for one person, the electric blanket (A) accommodated in the wrapping bag (B) is substantially L-shaped as shown in FIG. The binding ties (32a) (32b) located at the top of the wrapping bag (B) are folded to the backrest (35) of the chair (C), and the binding ties (32a) (32b) in the middle are also Fastening the brace (35) to the column (36) and the lower tying string (32a) (32b) to the pedestal (34) of the seating surface (33), respectively, the heater wire (H) of the electric blanket (A) The plug (26) of the control unit (U) that is electrically connected to the electrical outlet) is inserted into a room power outlet and used for energization. Then, the upper body of the person seated on the chair (C) can be effectively heated by the heater wire (H) serving as a heat source during the operation of the electric blanket (A).

Further, the electric blanket (A) is bent into an almost inverted L shape as shown in FIG. 10, and the binding strings (32a) and (32b) at the upper position of the wrapping bag (B) are backrested in the chair (C) ( 35), the middle part and the lower binding string (32a) (32b) are both fastened to the pedestal (34) of the seating surface (33) to the chair (C). The lower body of the person can be heated as above.

Further, depending on the length of the wrapping bag (B) and the electric blanket (A) accommodated therein, the wrapping bag (B) is folded into a continuous staircase shape as shown in FIGS. ) (32b) can be securely fastened to a part of the chair (C), so that the upper and lower bodies of the person seated on the chair (C) can be heated as a whole.

In any case, when the invention is not used, it can be wound into a smooth roll form and stored in a compact and compact manner, and the fouled packaging (B) of the electric blanket (A) can be washed repeatedly. It is also possible to clean.

Note that the chair (C) can be the electric warming device of the present invention regardless of the type of rotation and non-rotation, the presence or absence of an armrest (37), and the number of pedestals (34). It can be retrofitted to any form of chair (C) and is very convenient.

(11a)-Front fabric (11b)-Back fabric (12a) (12b)-Non-woven fabric (13)-Core yarn (14)-Heating element wire (15)-Melting fault (16)-Detection line (17) Outer layer (18) ・ Linear slit (19) ・ Fixed wire (20) ・ Adhesive or welded part (21) ・ Suture part (22) ・ Connector receptacle (plug)
(23a) (23b) · Connection terminal (24) · Connector (25) · Operation knob (26) · Plug (27a) · Outer cloth (27b) · Back cloth (28) · Outlet (29) · Opening and closing Fastener (30), window (31a) (31b), rivet (eyelet)
(32a) (32b) · Tying string (33) · Seat surface (34) · Pillar (35) · Backrest (36) · Strut (37) · Armrest (38) · Strut (A) · Electric blanket (B ) ・ Bag (C) ・ Chair (H) ・ Heater wire (U) ・ Control unit

Claims (1)

An electric blanket (A) having a substantially rectangular outline with a constant band width and length (L) corresponding to the seating surface (33) of the chair (C) and a soft blanket accommodating the electric blanket (A) Consisting of a wrapping bag (B) ,
A number of linear slits (18) used for locking and folding the heater wire are cut into the front nonwoven fabric (12a) and / or the back nonwoven fabric (12b) serving as the batting of the electric blanket (A) . By bending and locking the middle part of the flexible heater wire (H) so as to be repeatedly put in and out of the linear slit (18), the heater wire (H) is wired in an overall meandering form,
While the front and back pair of the nonwoven fabric (12a) (12b) in the sandwiched state of the wired heater wires (H), the heater wires (H) are fixed and integrated linearly between the adjacent heater wires (H),
The wrapping bag (B) is sewed into a substantially rectangular outline from the front cloth (27a) and the back cloth (27b),
On the front cloth (27a) or back cloth (27b), there is an electric blanket entry / exit opening (28), an open / close fastener (29) of the entry / exit opening (28), and a connector receptacle (22) on the electric blanket (A) side. Each has a window (30) to be exposed,
The electric blanket (A) can be inserted and removed freely from the electric blanket outlet (28), and a connector receptacle (23a) (23b) having a connection terminal (23a) (23b) for the heater wire (H) in the electric blanket (A) ( 22), the connector (24) on the control unit (U) side is detachably inserted and connected from the exposure window (30),
A binding string (32a) of an appropriate length that is inserted into a pair of rivets (31a) and (31b) that are scattered in the four corners and the middle part of the wrapping bag (B) so as to be freely inserted and removed. ) (32b) is used to fasten the wrapping bag (B) containing the electric blanket (A) to the pedestal (34), backrest (35) and other parts of the chair (C). The lower body and / or upper body of a person seated on the chair for one person (C) is energized from the plug (26) of the control unit (U) to the heater wire (H) of the electric blanket (A). Retrofitting electric warmer to the chair, characterized by heating.

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