JP2008049081A - Backrest and chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a backrest for removably mounting a hanger part and a headrest without increasing the number of unnecessary parts. <P>SOLUTION: A common mounting part 6 is provided at a frame body 3 supporting a backrest body 2 for removably mounting the headrest 4 and the hanger part 5. A user can customize the usage from the following modes for mounting through the mounting part: a mode for mounting both of the headrest and the hanger part, a mode for mounting either the headrest or the hanger part, or a mode for mounting neither the headrest nor the hanger part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a backrest and a chair provided with a backrest.

Conventionally, there is known a chair in which a hanger part for attaching clothes to the backrest can be attached. As an example, there is a mode in which a support piece provided on the hanger portion is detachably fitted into an engagement hole formed in the upper end portion of the backrest (see, for example, Patent Document 1, hereinafter referred to as “first mode”). ). On the other hand, a chair is also known in which a headrest can be attached to the backrest, and an example in which the headrest is detachably attached using an attachment portion attached to the backrest (see Patent Document 2, for example). Hereinafter referred to as “second embodiment”). There is also known a chair that can be detachably attached using an attachment portion in which either one of a hanger portion or a headrest is provided on the backrest (see, for example, Patent Document 3, hereinafter “third”). Referred to as an embodiment).
JP 2003-125896 A JP 2001-414267 A JP-A-8-150044

  Compared to the first aspect and the second aspect, the third aspect can be selected and attached to either the hanger part or the headrest according to the use and preference of the seated person. Although it becomes rich and practical, only one of the hanger part or the headrest can be attached, so naturally when one is attached, the other cannot be attached, There was a problem that it was not possible to meet the demand for attaching both the hanger part and the headrest. On the other hand, when both the hanger part and the headrest can be attached to the backrest by combining the first aspect and the second aspect, the attachment part for the hanger part and the attachment part for the headrest are required separately. Therefore, there arises a problem that the number of parts is increased and the structure is complicated.

  The present invention has been made paying attention to such a problem, and the main purpose is to provide a backrest that allows the hanger part and the headrest to be detachably attached without increasing the number of unnecessary parts. It is to provide.

  That is, the backrest of the present invention is characterized in that a common attachment portion for detachably attaching the headrest and the hanger portion is provided.

  The backrest of the present invention comprises a backrest main body and a frame body that supports the backrest main body, and is a common for attaching a headrest and a hanger part to the frame body in a detachable manner. A mounting portion is provided.

  If it is such, since it is possible to detachably attach the headrest and the hanger part using a common attachment part, the aspect of attaching both the headrest and the hanger part to the frame body via the attachment part, It can be selected appropriately according to the use and preference of the seated person from the four aspects of the aspect of attaching either the headrest or the hanger part, the aspect of not attaching either the headrest or the hanger part, and the variation that can be taken increases. In addition to being practical, it is possible to effectively reduce the number of parts and simplify the structure as compared with a mode in which the headrest and the hanger are attached to separate mounting parts.

  In particular, the headrest includes a headrest body and a headrest body support part that supports the headrest body, and the hanger part includes a hanger body and a hanger body support part that supports the hanger body. If the mounting portion is a substantially cylindrical shape into which either one of the headrest main body support portion or the hanger main body support portion can be inserted and the other can be externally fitted, The structure can be simple.

  Further, the attachment portion includes an insertion portion into which the headrest body support portion can be inserted, and the headrest relative to the attachment portion is adjusted by adjusting an insertion degree of the headrest body support portion with respect to the insertion portion. If the height position of the main body can be adjusted, the height position of the headrest can be adjusted according to the physique and sitting posture of the seated person, which is preferable. In this case, as a specific embodiment, the headrest body support portion is provided with a plurality of engaging portions at a predetermined pitch along the height direction, and the engaged portion can be engaged with the inserted portion. The aspect which provided the joint part is mentioned.

  Furthermore, the said hanger part is provided with the said hanger main body support part as a pair, The said hanger part is said by positioning each hanger main body support part in the position which pinches | interposes the said attachment part by these each hanger main body support part. If the hanger body support part can cover the entire outer peripheral surface of the attachment part, the dimensional error of the attachment part is absorbed by the gap between the hanger body support parts as long as it can be attached to the attachment part. It is possible.

  In particular, in order to ensure a good mounting state of the hanger part with respect to the mounting part and to realize a smoother mounting operation, inward protruding parts protruding inwardly on the inward surfaces of the respective hanger body support parts And a concave groove that can be engaged with the inward protruding portion is formed on the outer surface portion of the mounting portion.

  In addition, the frame body includes a frame portion that can form a gap with the backrest main body in a plan view at an upper end portion, and the attachment portion is provided on a front surface portion of the curved frame portion. In this case, the mounting portion is positioned on the back side of the backrest main body, the exposure of the mounting portion to the outside can be suppressed, and early damage to the mounting portion itself can be avoided.

  If the attachment part is detachably attached to a predetermined part of the backrest such as the frame body, it is possible to replace only the attachment part, and neither the headrest nor the hanger part is attached. Can simplify the appearance of the frame body by removing the mounting portion from the frame body.

  As described above, according to the present invention, the hanger part and the headrest can be detachably attached to the frame body via the common attachment part without causing an unnecessary increase in the number of parts.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  Thus, the backrest 1 according to the present embodiment is applied to, for example, a chair, and includes the backrest body 2 and the frame body 3 that supports the backrest body 2.

  The backrest main body 2 is configured by a mesh-like tension fabric, and is stretched substantially linearly in a plan view when no load is applied as shown in FIG. 3 and the like.

  As shown in FIGS. 1 to 3 and the like, the frame body 3 is provided at the upper end portion and extends substantially horizontally and has a curved frame portion 31 that is substantially curved in plan view and extends downward from both ends of the curved frame portion 31. A pair of side frame portions 32 and a lower frame portion (not shown) for connecting lower ends of the side frame portions 32 are provided.

  The curved frame portion 31 has a curved shape capable of forming a gap S with the backrest body 2 in plan view.

  The side frame portion 32 includes a groove portion that opens outward, and the end portion of the backrest main body 2 is pushed into the groove portion so that the backrest main body 2 can be attached to the frame body 3. In addition, an appropriate retaining means for preventing the backrest body 2 attached to the frame body 3 from coming off is provided.

  Therefore, as shown in FIGS. 4 to 11, the backrest 1 according to the present embodiment allows the headrest 4 and the hanger portion 5 to be attached to the frame body 3.

  Specifically, the attachment part 6 for attaching the headrest 4 and the hanger part 5 to the curved frame part 31 of the frame body 3 is detachably attached. As shown in FIGS. 5 to 7 and the like, the attachment portion 6 is detachably attached to an attachment portion 311 provided on the front surface portion of the curved frame portion 31. The mounting portion 311 has a recessed portion into which a part of the attachment portion 6 can be inserted. When the attachment portion 6 is not attached, the mounting portion 311 covers the recessed portion with the lid member C shown in FIG. 1 so that the lid member C and the curved frame portion 31 are substantially flush with each other. Yes.

  The attachment portion 6 has a substantially cylindrical shape that has a through hole 61 that penetrates in the height direction and is the “inserted portion” of the present invention. A latch pin (not shown) which is an engaging portion of the present invention is provided on the inner surface portion of the through hole 61, and a predetermined region is opened forward. Moreover, the recessed groove | channel 62 which can engage the inward protrusion part 521 provided in the hanger main body support part 52 mentioned later is formed in the both-sides edge part of the attaching part 6. As shown in FIG.

  As shown in FIGS. 4 to 9, the headrest 4 includes a headrest body 41 and a single headrest body support portion 42 that supports the headrest body 41. The headrest main body 41 has a curved shape with a central portion protruding forward in a side view. The headrest main body support portion 42 is a flat plate extending downward from the rear side upper end portion of the headrest main body 41, and the cross-sectional shape thereof is set slightly smaller than the opening shape of the through hole 61 of the attachment portion 6. is doing. A plurality of engaging recesses 421 according to the present invention that can engage with the latch pins provided in the through holes 61 are formed in the headrest body support portion 42 at a predetermined pitch along the height direction.

  Such a headrest 4 can be attached to the attachment portion 6 by inserting the headrest body support portion 42 into the through hole 61 of the attachment portion 6 from above and elastically engaging the latch pin and the engagement recess 421. In this attached state, the headrest body 41 is positioned forward and above the curved frame portion 31 and the backrest body 2. Further, when the height position of the headrest body 41 is adjusted, by applying an operating force for raising and lowering the headrest body support portion 42, the latch pin is temporarily elastically retracted, and the engagement between the latch pin and the engagement recess 421 is performed. The engagement state is released, and the latch pin that is elastically restored is engaged with another engagement recess 421.

  On the other hand, as shown in FIGS. 4 to 8, 10, and 11, the hanger portion 5 includes a hanger body 51 and a hanger body 51 via an inclined portion 53 that is lowered obliquely forward from the center portion of the hanger body 51. The hanger main body support part 52 which supports is provided. The hanger body 51 has a curved shape in plan view that extends substantially horizontally. In the present embodiment, the curvature radius of the hanger body 51 is set to be substantially the same as the curvature radius of the curved frame portion 31. The hanger body support part 52 extends downward from the lower end of the inclined part 53. In this embodiment, the hanger body support parts 52 are provided as a pair on the left and right. The internal separation distance between the hanger body support parts 52 is set to a dimension that allows the attachment part 6 to be sandwiched from the side. An inward projecting portion 521 projecting inward is provided on the inward surface of each hanger body support portion 52, and the inward projecting portion 521 can engage with a concave groove 62 formed in the outer surface portion of the attachment portion 6. (See FIG. 11).

  Such a hanger part 5 can be attached to the attachment part 6 by inserting from the upper side while engaging the inward protruding part 521 of each hanger body support part 52 with the concave groove 62 of the attachment part 6. In this attachment state, the attachment portions 6 are sandwiched from both sides by the respective hanger body support portions 52, and the hanger body 51 is positioned behind the curved frame portion 31. Further, by supporting a part of the lower end portion of the inclined portion 53 in a state where it is placed on the curved frame portion 31, a good mounting state and a supporting state of the hanger portion 5 are maintained. In addition, when the headrest 4 is not attached to the attachment part 6, the hanger part 5 is provided with a cover part 54 that can cover the through hole 61 of the attachment part 6 at a position where the hanger body support part 52 can be connected. Yes. The cover portion 54 may be a single-use (disposable) type, or any one that can be repeatedly attached and detached between the hanger body support portions 52.

  As described above, the backrest 1 according to the present embodiment is provided with the common attachment portion 6 for detachably attaching the headrest 4 and the hanger portion 5 to the frame body 3. A mode in which either the headrest 4 or the hanger portion 5 is attached to the frame body 3 (see FIG. 4), a mode in which any one of the headrest 4 or the hanger portion 5 is attached (see FIG. 9, FIG. 10), or the headrest 4 and It can be appropriately selected according to the use and preference of the seated person from four modes (see FIG. 1) in which none of the hanger parts 5 are attached, and the variation that can be taken increases and becomes practical. The headrest 4 and the hanger part 5 are individually attached to the frame body, the headrest attachment part, and the aspect attached to the hanger part attachment part. Number reduction, it is possible to enable the simplification of the structure.

  In particular, since the attachment portion 6 is a substantially cylindrical shape into which the headrest body support portion 42 can be inserted and the hanger body support portion 52 can be fitted externally, the structure of the attachment portion 6 itself is also simple. can do.

  In addition, the attachment portion 6 includes a through hole 61 that allows the headrest body support portion 42 to be inserted, and the headrest with respect to the attachment portion 6 is adjusted by adjusting the degree of insertion of the headrest body support portion 42 into the through hole 61. Since the height position of the main body 41 can be adjusted, the height position of the headrest 4 can be changed according to the physique and sitting posture of the seated person, and wide versatility can be imparted. In this case, the headrest main body support portion 42 is provided with a plurality of engagement recesses 421 at a predetermined pitch along the height direction, and the latch pins that can be engaged with the engagement recesses 421 are provided in the through holes 61. A mechanism for adjusting the height position can be realized with a simple structure.

  Further, the hanger body support portions 52 are provided as a pair with a predetermined distance in the left-right direction, and each hanger body support portion 52 is positioned at a position where the attachment portion 6 is sandwiched by each hanger body support portion 52 to thereby attach the hanger portion 5. Since the attachment to the attachment portion 6 is enabled, the dimensional error of the attachment portion 6 is less than the gap between the hanger body support portions 52 as compared with the aspect in which the hanger body support portion can cover the entire outer peripheral surface of the attachment portion. Can be absorbed.

  In particular, an inward protruding portion 521 that protrudes inward is provided on the inward surface of each hanger body support portion 52, and a recessed groove 62 that can be engaged with the inward protruding portion 521 is formed on the outer surface portion of the attachment portion 6. Therefore, the inwardly projecting portion 521 and the concave groove 62 function together as a so-called “sagge”, and the attachment state between the hanger portion 5 and the attachment portion 6 can be further improved. When attaching the hanger part 5 to the attachment part 6, the inward projecting part 521 is guided along the concave groove 62 so that the attaching and detaching work of the hanger part 5 with respect to the attaching part 6 can be performed smoothly and accurately. it can.

  The frame body 3 includes a curved frame portion 31 having a curved shape capable of forming a gap S between the upper end portion and the backrest body 2 in a plan view. Since the mounting portion 6 is provided on the front surface portion, the mounting portion 6 is positioned on the back side of the backrest main body 2, so that the mounting portion 6 is prevented from being exposed to the outside, and damage to the mounting portion 6 itself can be avoided. Moreover, since the attaching part 6 is difficult to visually recognize from the outside, it is preferable also in terms of design.

  Furthermore, since the attachment portion 6 is detachably attached to the frame body 3, only the attachment portion 6 can be replaced, and when neither the headrest 4 nor the hanger portion 5 is attached, the attachment portion 6. By removing the frame, the appearance of the frame body 3 and by extension, the backrest 1 as a whole can be simplified.

  The present invention is not limited to the embodiment described in detail above.

  For example, the attachment portion may be provided integrally or integrally with the frame body so as not to be detachable.

  Moreover, a hanger main body support part can be inserted as an attachment part, and the substantially cylindrical thing in which a headrest main body support part can be externally fitted may be sufficient. In this case, the hanger body support section and the headrest body support section may be appropriately changed to a shape that can be inserted into the mounting section or that can be fitted onto the mounting section.

  Moreover, you may apply a bottomed cylindrical recessed part instead of the through-hole penetrated in the height direction as an insertion part of an attaching part.

  Further, as the engaging portions provided in the headrest body support portion at a predetermined pitch along the height direction, holes or convex portions may be adopted instead of the concave portions shown in the above embodiment, and in this case, the mounting portion What is necessary is just to employ | adopt the engagement nail | claw or engagement recessed part which the said hole or convex part engages as a to-be-engaged part.

  Moreover, you may set the height position of a hanger part so that height adjustment is possible continuously. Further, the headrest body support portion is provided with a plurality of engaging portions at a predetermined pitch along the height direction, and an engaged portion that can be engaged with the engaging portion is provided. You may employ | adopt the backrest provided with the operation part which can be switched to the state which engaged and the state which cannot be engaged.

  The frame portion constituting the upper end portion of the frame body is not limited to a curved shape, and may be a substantially straight shape in plan view. Moreover, you may employ | adopt the aspect which provided the attaching part in parts other than the upper end part of a frame body.

  As the backrest body, a material other than the mesh-like tension fabric may be applied.

  In the above-described embodiment, the backrest provided with the backrest body and the frame body is exemplified. However, the present invention is not limited to this. For example, the backrest is composed of a single shell structure. The main body itself may function as a frame body, or the frame body itself may be a backrest that functions as a backrest main body. In this case, the attachment part should just be provided in the predetermined part of a backrest.

  Furthermore, such a backrest may be applied to furniture other than a chair having a backrest, such as a bench or a sofa.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The principal part perspective view of the frame body which concerns on one Embodiment of this invention. The front view of the frame body shown in FIG. The top view of the frame body shown in FIG. The principal part perspective view of the state which attached the headrest and the hanger part via the attaching part to the frame body which concerns on the same embodiment. The exploded perspective view of the same state. The front view of the same state. The exploded front view of the same state. The top view of the same state. The principal part perspective view of the state which attached the headrest to the frame body which concerns on the embodiment via the attaching part. The principal part perspective view of the state which attached the hanger part to the frame body which concerns on the embodiment via the attaching part. The principal part expansion exploded view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Backrest 2 ... Backrest main body 3 ... Frame body 31 ... Curved frame part 4 ... Headrest 41 ... Headrest main body 42 ... Headrest main body support part 421 ... Engagement part (engagement recessed part)
5 ... Hanger part 51 ... Hanger body 52 ... Hanger body support part 521 ... Inward projecting part 6 ... Mounting part 61 ... Insertion part (through hole)
62 ... concave groove

Claims (10)

A backrest characterized in that a common attachment portion for detachably attaching the headrest and the hanger portion is provided. A backrest comprising a backrest body and a frame body that supports the backrest body,
The backrest characterized by providing the common attachment part for attaching a headrest and a hanger part to the said frame body so that attachment or detachment is possible. The headrest is provided with a headrest body and a headrest body support part that supports the headrest body,
The hanger part includes a hanger body and a hanger body support part that supports the hanger body,
The backrest according to claim 1 or 2, wherein the attachment portion has a substantially cylindrical shape into which either one of the headrest main body support portion or the hanger main body support portion can be inserted and the other can be externally fitted. The mounting portion includes an insertion portion into which the headrest body support portion can be inserted,
The backrest according to claim 3, wherein the height position of the headrest body with respect to the attachment portion can be adjusted by adjusting the degree of insertion of the headrest body support portion with respect to the inserted portion. 5. The headrest body support part is provided with a plurality of engaging parts at a predetermined pitch along a height direction thereof, and the engaged part is provided on the inserted part so that the engaging part can be engaged. Backrest. The hanger part is provided with the hanger body support part as a pair, and the hanger part is placed on the attachment part by positioning each hanger body support part at a position sandwiching the attachment part by each hanger body support part. The backrest according to claim 3, 4 or 5, which can be attached to the backrest. 7. An inward protruding portion that protrudes inward is provided on an inward surface of each hanger body support portion, and a recessed groove that can be engaged with the inward protruding portion is formed on an outer surface portion of the mounting portion. Description backrest. The frame body is provided with a curved frame portion having a curved shape in a plan view and capable of forming a gap between the upper end portion and the backrest main body in a plan view, and the attachment portion is a front portion of the frame portion. The backrest according to claim 2, wherein the backrest is provided. The backrest according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the attachment portion is detachable. A chair comprising a seat and the backrest according to claim 1.

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