TWM449751U - Backrest adjusting apparatus of trolley - Google Patents

Description

Cart backrest adjustment device

The present invention relates to an adjusting device, and more particularly to a backrest adjusting device for a stroller.

For example, Taiwan's new patent No. M300639 "reversely implemented back stroller" is a conventional stroller. When a baby is seated in the stroller, the baby's head can only abut one. One side of the seat, so that if the baby is seated for a long time, it will certainly cause discomfort, and its practicality is also poor.

Therefore, the object of the present invention is to provide a backrest adjusting device for a stroller that can easily adjust the backrest angle to improve ride comfort.

Therefore, the backrest adjusting device of the present invention is adapted to be mounted on a front foot tube of a body device of a cart, and the backrest adjusting device of the cart comprises a backrest, two connecting components, two card members, and two Elastic parts.

The backrest includes two fixed ends respectively disposed opposite to each other and corresponding to the front leg tube, and two through holes respectively facing away from the fixed ends.

The connecting components are respectively disposed between the backrest and the frame device, and each connecting component includes an engaging body disposed at a top end of one of the front legs, and a pivot shaft disposed at the fixed end of the engaging body. And an abutting member disposed on the engaging body and spaced apart from the pivot, each engaging body having a card hole corresponding to one of the through holes.

The clips are movably disposed through the perforations.

The elastic members are respectively received in the fixed ends and are constantly rebounded against the card members.

The card members are respectively movable relative to the perforations between a carding position and a non-carding position, and in the carding position, the card members are simultaneously clamped to the perforations and the The backrest is restrained from being rotated toward the abutting members, and in the non-snapped position, the engaging members are respectively separated from the card holes, and the backrests may be pivots of the pivots Rotating toward the abutting members, the fixed ends are respectively abutted against the abutting members.

The utility model has the beneficial effects that the card holders can be respectively engaged with the card holes and the design of the card holes, so that the backrest can rotate with the pivots as the axis, thereby allowing the backrest to be rotated. Abutting against the abutting members, the user can select whether to adjust the inclination angle of the backrest according to the demand of the user, so as to improve the comfort of the baby seat and the practicality of the cart.

The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the following description of the preferred embodiments.

Referring to FIG. 1, FIG. 2, FIG. 3, and FIG. 4, a preferred embodiment of the backrest adjusting device 3 of the present invention is adapted to be mounted on a front foot tube 21 of a body device 2 of a cart 10. The backrest adjusting device 3 of the cart 10 includes a backrest 31, two connecting components 32, two clamping members 33, and two elastic members 34.

The backrest 31 is a tubular member having an inverted U shape and includes two opposite The fixed ends 311 of the front leg tube 21 are disposed and corresponding, and the second holes 312 are disposed away from the fixed ends 311, respectively.

The connecting components 32 are respectively disposed between the backrest 31 and the frame device 2, and each connecting component 32 includes an engaging body 321 disposed at a top end of one of the front leg tubes 21, and is disposed through the engaging body 321 A pivot 322 of the fixed end 311 and an abutting member 323 disposed on the engaging body 321 and spaced apart from the pivot 322.

Each of the engaging bodies 321 has a curved top wall 324, two side walls 325 extending downward from the bottom edge of the curved top wall 324, and one corresponding to one of the through holes 312 and penetrating through one of the side walls 325. Card hole 326.

Each of the abutting members 323 is disposed on the side walls 325 of each of the engaging bodies 321 and includes a screw 327 detachably disposed on the side walls 325 and perpendicular to one of the fixed ends 311, and a The screw is provided on the nut 328 of the screw 327.

The clips 33 are movably disposed through the through holes 312, respectively. Each of the clamping members 33 includes a locking portion 331 that is movably disposed through the through hole 312, and a limiting portion 332 that is received in the fixed end 311 and connected to the locking portion 331. The diameter of the limiting portion 332 is larger than the diameter of the through hole 312 to prevent each of the clamping members 33 from being detached from each of the through holes 312.

The elastic members 34 are respectively received in the fixed ends 311 and are constantly rebounded against the clamping members 33. In the preferred embodiment, each of the elastic members 34 is a U-shaped elastic piece, and includes a free end 341 that is coupled to the fixed end 311, and a connecting end 342 that is coupled to the locking member 33. . When each elastic member 34 is in an unstressed state, it is elastically biased against each of the clamping members 33 toward each corresponding perforation. The 312 direction is moved so that each card member 33 is snapped into each of the through holes 312 and each of the card holes 326.

Referring to Figures 4 and 5, in use, the clips 33 are movable relative to the perforations 312 between a carded position and a non-carded position, respectively. Referring to FIG. 3 and FIG. 4, in the clamping position, since the engaging portions 331 of the engaging members 33 are respectively biased by the elastic members 34, the engaging members 33 are The locking portions 331 are respectively clamped to the through holes 312 and the card holes 326, so that the backrest 31 is restrained, so that the user cannot apply force to the backrest 31 and abut against the backrest 31. The piece 323 is rotated to allow the fixed ends 311 of the backrest 31 to be in line with the forefoot tubes 21, respectively. Referring to FIG. 5 and FIG. 6 , when the user simultaneously presses the locking portions 331 of the clamping members 33 , the locking portions 331 of the clamping members 33 are respectively separated from the card holes 326 . When the position is in the non-slipping position, the backrest 31 is not constrained, so that the user can apply the backrest 31 to the backrest 31 with the pivots 322 as the axis and toward the abutting members. The 323 is rotated, and the fixed ends 311 are respectively abutted against the abutting members 323, so that the fixed ends 311 of the backrest 31 are respectively at an angle with the forefoot tubes 21, thereby allowing the user to The tilting state of the backrest 31 is adjusted and adjusted by using the demand, so that the head of the baby (not shown) seated in the cart 10 can be relied on at different angles to enhance the comfort during riding, thereby improving The utility of the cart 10.

According to the above description, the backrest adjusting device 3 of the present invention has the following advantages and effects: the card portions 331 of the card members 33 can be respectively locked. The holes 326 and the detachment of the holes 326 allow the backrest 31 to be pivoted about the pivots 322, thereby allowing the backrest 31 to abut against the abutting members 323, thus, The user can select whether to adjust the tilt angle of the backrest 31 according to the needs of the use, so as to improve the comfort of the infant seat and increase the utility of the cart 10.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

10‧‧‧ cart

2‧‧‧Army device

21‧‧‧Front foot tube

3‧‧‧Backrest adjustment device

31‧‧‧ Backrest

311‧‧‧ fixed end

312‧‧‧Perforation

32‧‧‧Connecting components

321‧‧‧ joint body

322‧‧‧ pivot

323‧‧‧Attendance

324‧‧‧ curved top wall

325‧‧‧ side wall

326‧‧‧Kakong

327‧‧‧ screws

328‧‧‧ nuts

33‧‧‧Cards

331‧‧‧Card Department

332‧‧‧Limited

34‧‧‧Flexible parts

341‧‧‧Free end

342‧‧‧Connected end

1 is a perspective view of a preferred embodiment of a backrest adjusting device of the present invention, illustrating a state in which a backrest of a cart is not rotated; FIG. 2 is a partial perspective view of the preferred embodiment; FIG. A side view of the embodiment illustrates the state in which the backrest of the cart is not rotated; and FIG. 4 is a cross-sectional view taken from line IV-IV of FIG. 3, illustrating a card in a carded position; FIG. 5 is similar 4 is a cross-sectional view showing the card in a non-sliding position; and FIG. 6 is a side view of the preferred embodiment illustrating the state of the back of the cart after rotation.

10‧‧‧ cart

2‧‧‧Army device

21‧‧‧Front foot tube

3‧‧‧Backrest adjustment device

31‧‧‧ Backrest

32‧‧‧Connecting components

321‧‧‧ joint body

322‧‧‧ pivot

323‧‧‧Attendance

326‧‧‧Kakong

33‧‧‧Cards

Claims (6)

A backrest adjusting device for a stroller is adapted to be mounted on a front foot tube of a body device of a cart. The backrest adjusting device of the cart comprises: a backrest, comprising two oppositely disposed and corresponding fixings of the front leg tube The end and the second end are respectively disposed at the opposite ends of the fixed end; the two connecting components are respectively disposed between the backrest and the frame device, and each connecting component comprises an engaging body disposed at a top end of one of the front legs, a pivoting member disposed on the engaging body and a fixed end thereof, and an abutting member disposed on the engaging body and spaced apart from the pivoting shaft, each engaging body having a card hole corresponding to one of the through holes; The two card members are respectively movably disposed on the perforations; and the two elastic members are respectively received in the fixed ends and are constantly elastically opposed to the card members; wherein the card members are respectively opposite The perforations are moved between a carding position and a non-clamping position, and in the carding position, the card members are simultaneously clamped to the perforations and the card holes, and the backrest is restrained And cannot turn toward the abutment, When the card is not in the position of the card, the card members are respectively disengaged from the card holes, and the backrests are pivoted toward the abutting members, and the fixed ends are respectively abutted against the abutting members. Relying on pieces. The backrest adjusting device for a stroller according to claim 1, wherein each engaging body further has an arc-shaped top wall, and two side walls respectively extending downward from the bottom edge of the curved top wall The card hole is penetrated through one of the side walls, and the abutting member is disposed on the side walls. The backrest adjusting device for a stroller according to the first aspect of the invention, wherein the backrest is a tubular member having an inverted U shape. The backrest adjusting device for a stroller according to claim 2, wherein each abutting member comprises a screw detachably threaded on the side walls and perpendicular to one of the fixed ends, and a screw The nut set on the screw. The backrest adjusting device for a stroller according to claim 1, wherein each of the engaging members includes a locking portion movably disposed through the through hole, and a receiving portion is disposed in the fixed end and connected In the limiting portion of the locking portion, the diameter of the limiting portion is larger than the diameter of the through hole, and in the clamping position, the locking portion is simultaneously clamped to the through hole and the card hole, in the non-carding position The card portion is separated from the card hole. The backrest adjusting device of the cart of claim 1, wherein each of the elastic members is a U-shaped elastic piece, and includes a free end that is received in the fixed end, and one of which is coupled to the card. The connection end of the piece.