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DE-102020122353-B4 - Bearing device for a headrest

DE102020122353B4DE 102020122353 B4DE102020122353 B4DE 102020122353B4DE-102020122353-B4

Abstract

A bearing device (10) for a headrest comprising a guide part (12) with which a retaining rod (11) of the headrest can be mounted on a vehicle seat and can be releasably fixed in a locking position relative to the guide part (12) by means of a locking device (15), wherein the locking device (15) comprises a bolt (54) movable between a locking position and a release position, which is associated with the guide part (12) and comprises at least one recess (55) which is associated with the retaining rod (11), wherein an actuating device (16) of the locking device (15) comprises a force transmission connection in the form of a band (33), such that when the actuating device (16) is adjusted, the bolt (54) can be moved into the release position by a resulting actuating force, characterized in that the retaining rod (11) is released from the locking position by means of an ejector (36) guided on the guide part (12). is movable into a removal position and that the belt (33) is connected to the ejector (36).

Inventors

  • Christian Eiletz
  • Thilo Häberl

Assignees

  • GRAMMER AKTIENGESELLSCHAFT

Dates

Publication Date
20260513
Application Date
20200826

Claims (16)

  1. A storage device (10) for a headrest comprising a guide part (12) with which a retaining rod (11) of the headrest can be stored on a vehicle seat and can be detachably fixed in a locking position relative to the guide part (12) by means of a locking device (15), wherein the locking device (15) comprises a bolt (54) movable between a locking position and a release position, which is associated with the guide part (12) and comprises at least one recess (55) which is associated with the retaining rod (11), wherein an actuating device (16) of the locking device (15) comprises a force transmission connection in the form of a band (33), such that when the actuating device (16) is adjusted, the bolt (54) can be moved into the release position by a resulting actuating force, characterized in that the retaining rod (11) can be ejected from the guide part (12) by means of an ejector (36) guided on the guide part (12). the locking position can be moved into a removal position and that the belt (33) is connected to the ejector (36).
  2. Storage device (10) for a headrest according to the preamble of Claim 1 , characterized in that the belt (33) is guided in a pulley-like manner, wherein the belt (33) has an actuation area which interacts with an abutment of the bolt (54) such that a force can be exerted on the abutment by means of a tensile force on the belt (33), whereby the bolt (54) can be adjusted into the release position, wherein the actuation area is arranged between the end regions (34, 35) of the belt (33).
  3. Bearing device (10) according to one of the preceding claims, characterized in that the belt (33) is in contact with an ejector (36) for the retaining rod (11) guided on the guide part (12), such that a further resulting actuating force acts on the ejector (36) and loads it from a first position to a second position.
  4. Storage device (10) according Claim 1 , characterized in that the band (33) comprises an actuation area which interacts with an abutment of the bolt (54) such that when a tensile force is applied to the band (33) a force is exerted on the abutment which moves the bolt (54) into the release position.
  5. Bearing device (10) according to one of the preceding claims, characterized in that in the locking position the band (33) is deflected at the abutment from a first extension direction (y1, y2) to a second extension direction (z1, z2).
  6. Storage device (10) according to one of the preceding Claims 2 until 4 , characterized in that the actuation area is formed between a first end area (34) and a second end area (35) of the band (33).
  7. Storage device (10) according to one of the preceding claims, characterized in that one end region (34) of the belt (33) forms a motorized or manual actuation (63) and the other end region (35) forms a support on the ejector (36).
  8. Storage device (10) according to one of the preceding claims, characterized in that the bolt (54) is assigned to a bolt holder (31) which is movably guided between the bolt position and the release position.
  9. Storage device (10) according Claim 8 , characterized in that the bolt holder (31) is guided in a recess (32) of the guide part (12).
  10. Storage device (10) according to one of the preceding claims, characterized in that the bolt (54) is in contact with a first stop in the bolt position and with a second stop in the release position.
  11. Storage device (10) according to one of the preceding claims, characterized in that the bolt (54) is mounted in a translationally displaceable or rotatable manner.
  12. Bearing device (10) according to one of the preceding claims, characterized in that the latch (54) is loaded into the latch position by at least one spring (60).
  13. Storage device (10) according to one of the preceding claims, characterized in that , that an ejector (36) is mounted to be movable translationally or rotationally.
  14. Storage device (10) according to one of the preceding claims, characterized in that an ejector (36) is loaded in the ejection direction by at least one spring (44).
  15. Storage device (10) according to one of the preceding claims, characterized in that the retaining rod (11) has a conical structure at its end.
  16. Storage device (10) according Claim 15 , characterized in that the cone structure is assigned to an attachment part (51), which is in particular designed as a plastic part and which is connected to the retaining rod (11).

Description

The invention relates to a bearing device for a support rod of a headrest. The bearing device comprises a locking device with which the support rod can be releasably locked in at least one position. Such a bearing is known from prior use. The bearing comprises a guide sleeve that can be attached to the backrest of a vehicle seat. A slide is movably guided on the guide sleeve. A latch is held on the slide, which interacts with at least one recess in the support rod. The latch is spring-loaded in engagement with the recess. By actuating the slide, the latch can be moved from the locked position to a released position, in which the support rod is freely movable in directions z1 and z2 relative to the guide sleeve. The DE 21 38 078 A This concerns an end-position locking mechanism for a headrest. The headrest comprises a head support section with two support rods that are received in guide members of the backrest. A notch is provided at one free end of each support rod, which acts as a detent. A two-armed locking lever is formed on each guide member, with one arm of the locking lever engaging in the notch and the other arm connected to a corresponding arm of the other locking lever by a spring. In one position, the spring presses the arms into the notch. In a second position, the spring holds the arms of the locking levers disengaged from the notches of the support rod. The DE 198 03 182 C2 Disclosing a vehicle seat with a backrest that is movable between a folded-down access position and a seated position and has a height-adjustable headrest. The backrest has a folding mechanism for folding it forward from the seated position to the access position and a height-adjusting mechanism for adjusting its height. Actuation of the folding mechanism releases a locking element via a linkage, lowering the headrest from a locked position to an adjustable position. The folding mechanism is connected to the locking element by means of a lever and a Bowden cable. The DE 10 2007 022 623 B4 Disclosing a headrest for mounting on a seat back with support bars, the headrest includes an adjustment mechanism with a locking element for setting multiple positions relative to the seat back. The adjustment mechanism includes a cable that interacts with a release mechanism and the locking element when the seat back's tilting mechanism is actuated. When the tilting mechanism is actuated, the headrest can be moved into a stowed position. The object of the invention is to create a storage device which facilitates handling during the assembly of the support rod in a locking position as well as the disassembly from the locking position. The problem is solved by a storage device having the features of claim 1. The mounting device is designed to support a headrest with at least one support rod. The support rod is an integral part of the mounting device. The support rod can be, for example, a single rod or the free end of a support rod bracket. The mounting device also includes a guide element that allows the headrest support rod to be mounted on a vehicle seat. The guide element is attached to the vehicle seat, specifically to the seat back. The guide element includes bearing surfaces that guide and hold the support rod in a locking position during installation and removal. The bearing device comprises a locking device by means of which the support rod can be releasably fixed in a locking position relative to the guide element. The locking device includes a bolt movable between a locking position and a release position, which is associated with the guide element, and at least one recess associated with the support rod. In the locking position, the bolt engages with the recess. The support rod is then held immovably in the locking position. In the release position, the bolt and recess are disengaged, so that the support rod can be moved out of the locking position. The locking device is adjustable between the locked and unlocked positions by means of an actuating device. Actuation can be manual or motorized. For example, the bolt is biased into the locked position by a return element. Actuating the device then moves the bolt from the locked position to the unlocked position. In this case, the return to the locked position is achieved by releasing the force applied to the actuating device. The actuating device comprises a force transmission connection in the form of a band, e.g., a pulley-type band. When the actuating device is moved into the release position, the bolt is engaged by a resulting The actuating force is adjustable to the release position. A second force component, for example via the connection, moves the ejector from a first position to a second position, whereby the ejector moves the retaining rod from the locking position to a removal position. The storage device includes an ejector designed to move the retaining rod from the locking position to a removal position. A further resulting actuating force acts on the ejector, moving